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MxChat – AI Chatbot & Content Generation for WordPress / 3.2.24
MxChat – AI Chatbot & Content Generation for WordPress v3.2.24
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← All changes | admin/class-pinecone-manager.php +1998 -1862 3.2.10 → 3.2.24 View file →
@@ -1,1862 +1,1998 @@
1 -<?php
2 -/**
3 - * File: admin/class-pinecone-manager.php
4 - *
5 - * Handles all Pinecone vector database operations for MxChat
6 - */
7 -
8 -if (!defined('ABSPATH')) {
9 - exit; // Exit if accessed directly
10 -}
11 -
12 -class MxChat_Pinecone_Manager {
13 -
14 - /**
15 - * Constructor
16 - */
17 - public function __construct() {
18 - }
19 -
20 - // ========================================
21 - // PINECONE FETCH OPERATIONS
22 - // ========================================
23 -
24 -
25 -/**
26 - * Fetches records from Pinecone with bot-specific filtering
27 - * UPDATED 2.6.1: Optimized for large datasets - uses server-side pagination
28 - */
29 -public function mxchat_fetch_pinecone_records($pinecone_options, $search_query = '', $page = 1, $per_page = 20, $bot_id = 'default', $content_type = '') {
30 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
31 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
32 - $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
33 -
34 - if (empty($api_key) || empty($host)) {
35 - return array('data' => array(), 'total' => 0, 'total_in_database' => 0, 'showing_recent_only' => false);
36 - }
37 -
38 - try {
39 - // Get total count for the banner message (bot-specific) - lightweight call
40 - $total_in_database = $this->mxchat_get_pinecone_total_count($pinecone_options, $bot_id);
41 -
42 - // For large databases, use optimized paginated fetching
43 - // Only fetch what we need for the current page, not all 1K records
44 - if ($total_in_database > 500) {
45 - $result = $this->mxchat_fetch_pinecone_page_optimized($pinecone_options, $search_query, $page, $per_page, $bot_id, $content_type);
46 - $result['total_in_database'] = $total_in_database;
47 - $result['showing_recent_only'] = true; // Always show banner when we're limiting results
48 - return $result;
49 - }
50 -
51 - // For smaller databases, use the existing approach but with safety limits
52 - $all_records = $this->mxchat_get_recent_entries_safe($pinecone_options, $bot_id, 500);
53 -
54 - // Filter by content type if provided
55 - if (!empty($content_type)) {
56 - $all_records = array_filter($all_records, function($record) use ($content_type) {
57 - $record_type = $record->type ?? 'content';
58 - return $record_type === $content_type;
59 - });
60 - $all_records = array_values($all_records); // Re-index array
61 - }
62 -
63 - // Filter by search query if provided
64 - if (!empty($search_query)) {
65 - $all_records = array_filter($all_records, function($record) use ($search_query) {
66 - $content = $record->article_content ?? '';
67 - $source_url = $record->source_url ?? '';
68 - return stripos($content, $search_query) !== false || stripos($source_url, $search_query) !== false;
69 - });
70 - $all_records = array_values($all_records); // Re-index array
71 - }
72 -
73 - // UPDATED 2.6.3: Group records by source_url for chunk-aware pagination
74 - // This ensures pagination shows X entries per page, not X chunks
75 - $grouped_by_url = array();
76 - $empty_url_records = array();
77 -
78 - foreach ($all_records as $record) {
79 - $source_url = $record->source_url ?? '';
80 - if (empty($source_url)) {
81 - $empty_url_records[] = $record;
82 - } else {
83 - if (!isset($grouped_by_url[$source_url])) {
84 - $grouped_by_url[$source_url] = array();
85 - }
86 - $grouped_by_url[$source_url][] = $record;
87 - }
88 - }
89 -
90 - // Count unique entries (unique URLs + individual empty-URL records)
91 - $total_unique_entries = count($grouped_by_url) + count($empty_url_records);
92 -
93 - // Paginate by unique entries
94 - $offset = ($page - 1) * $per_page;
95 -
96 - // Build ordered list of URL groups (newest first based on first record)
97 - $url_groups_ordered = array_keys($grouped_by_url);
98 -
99 - // Get the URLs for this page
100 - $page_urls = array_slice($url_groups_ordered, $offset, $per_page);
101 -
102 - // Collect all records for this page's URLs
103 - $paged_records = array();
104 - foreach ($page_urls as $url) {
105 - foreach ($grouped_by_url[$url] as $record) {
106 - $paged_records[] = $record;
107 - }
108 - }
109 -
110 - // Add empty-URL records if they fall within this page's range
111 - $remaining_slots = $per_page - count($page_urls);
112 - $empty_offset = max(0, $offset - count($grouped_by_url));
113 - if ($remaining_slots > 0 && $empty_offset < count($empty_url_records)) {
114 - $empty_page_records = array_slice($empty_url_records, $empty_offset, $remaining_slots);
115 - $paged_records = array_merge($paged_records, $empty_page_records);
116 - }
117 -
118 - return array(
119 - 'data' => $paged_records,
120 - 'total' => $total_unique_entries,
121 - 'total_in_database' => $total_in_database,
122 - 'showing_recent_only' => ($total_in_database > 500)
123 - );
124 -
125 - } catch (Exception $e) {
126 - //error_log('MxChat Pinecone fetch error: ' . $e->getMessage());
127 - MxChat_Admin::mxchat_log_debug('pinecone_error', 'Pinecone fetch error: ' . $e->getMessage());
128 - return array('data' => array(), 'total' => 0, 'total_in_database' => 0, 'showing_recent_only' => false);
129 - }
130 -}
131 -
132 -/**
133 - * Optimized fetch for large Pinecone databases
134 - * ADDED 2.6.1: Prevents crashes with large datasets
135 - * UPDATED 2.6.1: When searching, uses semantic search with embedded query for accurate results across all 13K+ records
136 - */
137 -private function mxchat_fetch_pinecone_page_optimized($pinecone_options, $search_query = '', $page = 1, $per_page = 20, $bot_id = 'default', $content_type = '') {
138 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
139 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
140 - $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
141 -
142 - try {
143 - // If user is searching, use semantic search with embedded query
144 - // This searches ALL records in Pinecone, not just fetched ones
145 - if (!empty($search_query)) {
146 - return $this->mxchat_semantic_search_pinecone($pinecone_options, $search_query, $page, $per_page, $bot_id, $content_type);
147 - }
148 -
149 - // For browsing (no search), use Pinecone's list endpoint for true pagination
150 - return $this->mxchat_list_pinecone_records($pinecone_options, $page, $per_page, $bot_id, $content_type);
151 -
152 - } catch (Exception $e) {
153 - //error_log('MxChat optimized fetch exception: ' . $e->getMessage());
154 - MxChat_Admin::mxchat_log_debug('pinecone_error', 'Pinecone optimized fetch error: ' . $e->getMessage());
155 - return array('data' => array(), 'total' => 0);
156 - }
157 -}
158 -
159 -/**
160 - * Semantic search across ALL Pinecone records using embedded search query
161 - * This allows users to find any of their 13K+ products by searching
162 - * ADDED 2.6.1
163 - */
164 -private function mxchat_semantic_search_pinecone($pinecone_options, $search_query, $page = 1, $per_page = 20, $bot_id = 'default', $content_type = '') {
165 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
166 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
167 - $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
168 -
169 - // Get embedding for the search query
170 - $query_embedding = $this->mxchat_get_search_embedding($search_query);
171 -
172 - if (empty($query_embedding)) {
173 - // Fallback to text-based search if embedding fails
174 - return $this->mxchat_text_search_fallback($pinecone_options, $search_query, $page, $per_page, $bot_id, $content_type);
175 - }
176 -
177 - $query_url = "https://{$host}/query";
178 -
179 - // Fetch more results to allow for filtering and pagination
180 - $fetch_limit = min(($page * $per_page) + 100, 500);
181 -
182 - $query_data = array(
183 - 'includeMetadata' => true,
184 - 'includeValues' => false,
185 - 'topK' => $fetch_limit,
186 - 'vector' => $query_embedding
187 - );
188 -
189 - if (!empty($namespace)) {
190 - $query_data['namespace'] = $namespace;
191 - }
192 -
193 - // Add metadata filter for content type if specified
194 - if (!empty($content_type)) {
195 - $query_data['filter'] = array(
196 - 'type' => array('$eq' => $content_type)
197 - );
198 - }
199 -
200 - $response = wp_remote_post($query_url, array(
201 - 'headers' => array(
202 - 'Api-Key' => $api_key,
203 - 'Content-Type' => 'application/json'
204 - ),
205 - 'body' => json_encode($query_data),
206 - 'timeout' => 20
207 - ));
208 -
209 - if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
210 - return $this->mxchat_text_search_fallback($pinecone_options, $search_query, $page, $per_page, $bot_id, $content_type);
211 - }
212 -
213 - $body = wp_remote_retrieve_body($response);
214 - $data = json_decode($body, true);
215 -
216 - $records = array();
217 - if (isset($data['matches'])) {
218 - foreach ($data['matches'] as $match) {
219 - $metadata = $match['metadata'] ?? array();
220 - $created_at = $metadata['created_at'] ?? $metadata['last_updated'] ?? $metadata['timestamp'] ?? time();
221 - if (!is_numeric($created_at)) {
222 - $created_at = strtotime($created_at) ?: time();
223 - }
224 -
225 - $records[] = (object) array(
226 - 'id' => $match['id'] ?? '',
227 - 'article_content' => $metadata['text'] ?? '',
228 - 'source_url' => $metadata['source_url'] ?? '',
229 - 'role_restriction' => $metadata['role_restriction'] ?? 'public',
230 - 'type' => $metadata['type'] ?? 'content',
231 - 'bot_id' => $bot_id,
232 - 'created_at' => $created_at,
233 - 'data_source' => 'pinecone',
234 - 'relevance_score' => $match['score'] ?? 0,
235 - 'chunk_index' => isset($metadata['chunk_index']) ? intval($metadata['chunk_index']) : null,
236 - 'total_chunks' => isset($metadata['total_chunks']) ? intval($metadata['total_chunks']) : null,
237 - 'is_chunked' => isset($metadata['is_chunked']) ? (bool) $metadata['is_chunked'] : false
238 - );
239 - }
240 - }
241 -
242 - // For semantic search, results are already sorted by relevance (score)
243 - // No need to re-sort by date
244 -
245 - $total = count($records);
246 - $offset = ($page - 1) * $per_page;
247 - $paged_records = array_slice($records, $offset, $per_page);
248 -
249 - $this->mxchat_batch_fetch_role_restrictions($paged_records, $bot_id);
250 -
251 - return array(
252 - 'data' => $paged_records,
253 - 'total' => $total
254 - );
255 -}
256 -
257 -/**
258 - * Get embedding vector for a search query
259 - * Uses the same embedding model configured for the knowledge base
260 - * ADDED 2.6.1
261 - */
262 -private function mxchat_get_search_embedding($search_query) {
263 - $options = get_option('mxchat_options', array());
264 - $embedding_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
265 -
266 - // Determine which API to use based on model
267 - if (strpos($embedding_model, 'voyage-') === 0) {
268 - return $this->mxchat_get_voyage_embedding($search_query, $options, $embedding_model);
269 - } elseif (strpos($embedding_model, 'gemini-') === 0) {
270 - return $this->mxchat_get_gemini_embedding($search_query, $options, $embedding_model);
271 - } else {
272 - return $this->mxchat_get_openai_embedding($search_query, $options, $embedding_model);
273 - }
274 -}
275 -
276 -/**
277 - * Get OpenAI embedding for search query
278 - */
279 -private function mxchat_get_openai_embedding($text, $options, $model) {
280 - $api_key = $options['api_key'] ?? '';
281 - if (empty($api_key)) {
282 - return null;
283 - }
284 -
285 - $response = wp_remote_post('https://api.openai.com/v1/embeddings', array(
286 - 'headers' => array(
287 - 'Authorization' => 'Bearer ' . $api_key,
288 - 'Content-Type' => 'application/json'
289 - ),
290 - 'body' => json_encode(array(
291 - 'model' => $model,
292 - 'input' => $text
293 - )),
294 - 'timeout' => 15
295 - ));
296 -
297 - if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
298 - return null;
299 - }
300 -
301 - $body = json_decode(wp_remote_retrieve_body($response), true);
302 - return $body['data'][0]['embedding'] ?? null;
303 -}
304 -
305 -/**
306 - * Get Voyage AI embedding for search query
307 - */
308 -private function mxchat_get_voyage_embedding($text, $options, $model) {
309 - $api_key = $options['voyage_api_key'] ?? '';
310 - if (empty($api_key)) {
311 - return null;
312 - }
313 -
314 - $request_body = array(
315 - 'model' => $model,
316 - 'input' => $text,
317 - 'input_type' => 'query'
318 - );
319 -
320 - // Add output dimensions for voyage-3-large if configured
321 - if (strpos($model, 'voyage-3-large') === 0 && !empty($options['voyage_output_dimension'])) {
322 - $request_body['output_dimension'] = intval($options['voyage_output_dimension']);
323 - }
324 -
325 - $response = wp_remote_post('https://api.voyageai.com/v1/embeddings', array(
326 - 'headers' => array(
327 - 'Authorization' => 'Bearer ' . $api_key,
328 - 'Content-Type' => 'application/json'
329 - ),
330 - 'body' => json_encode($request_body),
331 - 'timeout' => 15
332 - ));
333 -
334 - if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
335 - return null;
336 - }
337 -
338 - $body = json_decode(wp_remote_retrieve_body($response), true);
339 - return $body['data'][0]['embedding'] ?? null;
340 -}
341 -
342 -/**
343 - * Get Google Gemini embedding for search query
344 - */
345 -private function mxchat_get_gemini_embedding($text, $options, $model) {
346 - $api_key = $options['gemini_api_key'] ?? '';
347 - if (empty($api_key)) {
348 - return null;
349 - }
350 -
351 - $url = "https://generativelanguage.googleapis.com/v1beta/models/{$model}:embedContent?key={$api_key}";
352 -
353 - $request_body = array(
354 - 'model' => "models/{$model}",
355 - 'content' => array(
356 - 'parts' => array(
357 - array('text' => $text)
358 - )
359 - ),
360 - 'taskType' => 'RETRIEVAL_QUERY'
361 - );
362 -
363 - // Add output dimensions if configured
364 - if (!empty($options['gemini_output_dimension'])) {
365 - $request_body['outputDimensionality'] = intval($options['gemini_output_dimension']);
366 - }
367 -
368 - $response = wp_remote_post($url, array(
369 - 'headers' => array(
370 - 'Content-Type' => 'application/json'
371 - ),
372 - 'body' => json_encode($request_body),
373 - 'timeout' => 15
374 - ));
375 -
376 - if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
377 - return null;
378 - }
379 -
380 - $body = json_decode(wp_remote_retrieve_body($response), true);
381 - return $body['embedding']['values'] ?? null;
382 -}
383 -
384 -/**
385 - * Fallback text search when embedding fails
386 - * Fetches more records and filters by text match
387 - * ADDED 2.6.1
388 - */
389 -private function mxchat_text_search_fallback($pinecone_options, $search_query, $page, $per_page, $bot_id, $content_type) {
390 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
391 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
392 - $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
393 -
394 - $query_url = "https://{$host}/query";
395 - $query_vector = $this->mxchat_generate_optimized_query_vector();
396 -
397 - // Fetch more records to search through
398 - $query_data = array(
399 - 'includeMetadata' => true,
400 - 'includeValues' => false,
401 - 'topK' => 1000, // Fetch more for text search
402 - 'vector' => $query_vector
403 - );
404 -
405 - if (!empty($namespace)) {
406 - $query_data['namespace'] = $namespace;
407 - }
408 -
409 - $response = wp_remote_post($query_url, array(
410 - 'headers' => array(
411 - 'Api-Key' => $api_key,
412 - 'Content-Type' => 'application/json'
413 - ),
414 - 'body' => json_encode($query_data),
415 - 'timeout' => 20
416 - ));
417 -
418 - if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
419 - return array('data' => array(), 'total' => 0);
420 - }
421 -
422 - $body = wp_remote_retrieve_body($response);
423 - $data = json_decode($body, true);
424 -
425 - $records = array();
426 - $search_lower = strtolower($search_query);
427 -
428 - if (isset($data['matches'])) {
429 - foreach ($data['matches'] as $match) {
430 - $metadata = $match['metadata'] ?? array();
431 -
432 - // Filter by content type
433 - if (!empty($content_type)) {
434 - $record_type = $metadata['type'] ?? 'content';
435 - if ($record_type !== $content_type) {
436 - continue;
437 - }
438 - }
439 -
440 - // Text search filter
441 - $content = strtolower($metadata['text'] ?? '');
442 - $source_url = strtolower($metadata['source_url'] ?? '');
443 - if (strpos($content, $search_lower) === false && strpos($source_url, $search_lower) === false) {
444 - continue;
445 - }
446 -
447 - $created_at = $metadata['created_at'] ?? $metadata['last_updated'] ?? $metadata['timestamp'] ?? time();
448 - if (!is_numeric($created_at)) {
449 - $created_at = strtotime($created_at) ?: time();
450 - }
451 -
452 - $records[] = (object) array(
453 - 'id' => $match['id'] ?? '',
454 - 'article_content' => $metadata['text'] ?? '',
455 - 'source_url' => $metadata['source_url'] ?? '',
456 - 'role_restriction' => $metadata['role_restriction'] ?? 'public',
457 - 'type' => $metadata['type'] ?? 'content',
458 - 'bot_id' => $bot_id,
459 - 'created_at' => $created_at,
460 - 'data_source' => 'pinecone',
461 - 'chunk_index' => isset($metadata['chunk_index']) ? intval($metadata['chunk_index']) : null,
462 - 'total_chunks' => isset($metadata['total_chunks']) ? intval($metadata['total_chunks']) : null,
463 - 'is_chunked' => isset($metadata['is_chunked']) ? (bool) $metadata['is_chunked'] : false
464 - );
465 - }
466 - }
467 -
468 - // Sort by date for text search results
469 - usort($records, function($a, $b) {
470 - return $b->created_at - $a->created_at;
471 - });
472 -
473 - $total = count($records);
474 - $offset = ($page - 1) * $per_page;
475 - $paged_records = array_slice($records, $offset, $per_page);
476 -
477 - $this->mxchat_batch_fetch_role_restrictions($paged_records, $bot_id);
478 -
479 - return array(
480 - 'data' => $paged_records,
481 - 'total' => $total
482 - );
483 -}
484 -
485 -/**
486 - * List Pinecone records using the list endpoint for true pagination (no search)
487 - * This allows browsing through all 13K+ records page by page
488 - * ADDED 2.6.1
489 - */
490 -private function mxchat_list_pinecone_records($pinecone_options, $page = 1, $per_page = 20, $bot_id = 'default', $content_type = '') {
491 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
492 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
493 - $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
494 -
495 - // Pinecone's list endpoint returns vector IDs with pagination
496 - // We then fetch the metadata for those specific IDs
497 - $list_url = "https://{$host}/vectors/list";
498 -
499 - // Calculate pagination token from page number
500 - // Pinecone uses cursor-based pagination, so we need to handle this differently
501 - $limit = $per_page * 2; // Fetch extra to account for filtering
502 -
503 - $list_params = array(
504 - 'limit' => $limit
505 - );
506 -
507 - if (!empty($namespace)) {
508 - $list_params['namespace'] = $namespace;
509 - }
510 -
511 - // For pages beyond first, we need to use pagination_token
512 - // Store/retrieve pagination tokens in transients
513 - $pagination_key = 'mxchat_pinecone_page_' . md5($host . $namespace . $content_type);
514 -
515 - if ($page > 1) {
516 - $stored_tokens = get_transient($pagination_key);
517 - if ($stored_tokens && isset($stored_tokens[$page])) {
518 - $list_params['paginationToken'] = $stored_tokens[$page];
519 - }
520 - }
521 -
522 - $response = wp_remote_post($list_url, array(
523 - 'headers' => array(
524 - 'Api-Key' => $api_key,
525 - 'Content-Type' => 'application/json'
526 - ),
527 - 'body' => json_encode($list_params),
528 - 'timeout' => 15
529 - ));
530 -
531 - if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
532 - // Fallback to query-based approach
533 - return $this->mxchat_query_based_list($pinecone_options, $page, $per_page, $bot_id, $content_type);
534 - }
535 -
536 - $body = wp_remote_retrieve_body($response);
537 - $data = json_decode($body, true);
538 -
539 - // Store pagination token for next page
540 - if (!empty($data['pagination']['next'])) {
541 - $stored_tokens = get_transient($pagination_key) ?: array();
542 - $stored_tokens[$page + 1] = $data['pagination']['next'];
543 - set_transient($pagination_key, $stored_tokens, 300); // 5 minute cache
544 - }
545 -
546 - $vector_ids = array();
547 - if (isset($data['vectors'])) {
548 - foreach ($data['vectors'] as $vector) {
549 - $vector_ids[] = $vector['id'];
550 - }
551 - }
552 -
553 - // If list endpoint returned empty, fall back to query-based approach
554 - if (empty($vector_ids)) {
555 - return $this->mxchat_query_based_list($pinecone_options, $page, $per_page, $bot_id, $content_type);
556 - }
557 -
558 - // Fetch metadata for these vector IDs
559 - return $this->mxchat_fetch_vectors_by_ids_for_list($pinecone_options, $vector_ids, $page, $per_page, $bot_id, $content_type);
560 -}
561 -
562 -/**
563 - * Query-based listing fallback when list endpoint fails
564 - * ADDED 2.6.1
565 - */
566 -private function mxchat_query_based_list($pinecone_options, $page, $per_page, $bot_id, $content_type) {
567 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
568 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
569 - $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
570 -
571 - $query_url = "https://{$host}/query";
572 - $query_vector = $this->mxchat_generate_optimized_query_vector();
573 -
574 - // Fetch records - use higher limit to cover large databases
575 - // Pinecone query API supports up to 10,000 topK
576 - // We fetch more than needed to get accurate total count and enable pagination
577 - $fetch_limit = 5000;
578 -
579 - $query_data = array(
580 - 'includeMetadata' => true,
581 - 'includeValues' => false,
582 - 'topK' => $fetch_limit,
583 - 'vector' => $query_vector
584 - );
585 -
586 - if (!empty($namespace)) {
587 - $query_data['namespace'] = $namespace;
588 - }
589 -
590 - // Add content type filter if specified
591 - if (!empty($content_type)) {
592 - $query_data['filter'] = array(
593 - 'type' => array('$eq' => $content_type)
594 - );
595 - }
596 -
597 - $response = wp_remote_post($query_url, array(
598 - 'headers' => array(
599 - 'Api-Key' => $api_key,
600 - 'Content-Type' => 'application/json'
601 - ),
602 - 'body' => json_encode($query_data),
603 - 'timeout' => 30
604 - ));
605 -
606 - if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
607 - return array('data' => array(), 'total' => 0);
608 - }
609 -
610 - $body = wp_remote_retrieve_body($response);
611 - $data = json_decode($body, true);
612 -
613 - $records = array();
614 - if (isset($data['matches'])) {
615 - foreach ($data['matches'] as $match) {
616 - $metadata = $match['metadata'] ?? array();
617 -
618 - $created_at = $metadata['created_at'] ?? $metadata['last_updated'] ?? $metadata['timestamp'] ?? time();
619 - if (!is_numeric($created_at)) {
620 - $created_at = strtotime($created_at) ?: time();
621 - }
622 -
623 - $records[] = (object) array(
624 - 'id' => $match['id'] ?? '',
625 - 'article_content' => $metadata['text'] ?? '',
626 - 'source_url' => $metadata['source_url'] ?? '',
627 - 'role_restriction' => $metadata['role_restriction'] ?? 'public',
628 - 'type' => $metadata['type'] ?? 'content',
629 - 'bot_id' => $bot_id,
630 - 'created_at' => $created_at,
631 - 'data_source' => 'pinecone',
632 - 'chunk_index' => isset($metadata['chunk_index']) ? intval($metadata['chunk_index']) : null,
633 - 'total_chunks' => isset($metadata['total_chunks']) ? intval($metadata['total_chunks']) : null,
634 - 'is_chunked' => isset($metadata['is_chunked']) ? (bool) $metadata['is_chunked'] : false
635 - );
636 - }
637 - }
638 -
639 - // Sort by created_at (newest first)
640 - usort($records, function($a, $b) {
641 - return $b->created_at - $a->created_at;
642 - });
643 -
644 - $total = count($records);
645 - $offset = ($page - 1) * $per_page;
646 - $paged_records = array_slice($records, $offset, $per_page);
647 -
648 - $this->mxchat_batch_fetch_role_restrictions($paged_records, $bot_id);
649 -
650 - return array(
651 - 'data' => $paged_records,
652 - 'total' => $total
653 - );
654 -}
655 -
656 -/**
657 - * Fetch specific vectors by their IDs and format for display
658 - * ADDED 2.6.1
659 - */
660 -private function mxchat_fetch_vectors_by_ids_for_list($pinecone_options, $vector_ids, $page, $per_page, $bot_id, $content_type) {
661 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
662 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
663 - $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
664 -
665 - $fetch_url = "https://{$host}/vectors/fetch";
666 -
667 - $fetch_data = array(
668 - 'ids' => $vector_ids
669 - );
670 -
671 - if (!empty($namespace)) {
672 - $fetch_data['namespace'] = $namespace;
673 - }
674 -
675 - $response = wp_remote_post($fetch_url, array(
676 - 'headers' => array(
677 - 'Api-Key' => $api_key,
678 - 'Content-Type' => 'application/json'
679 - ),
680 - 'body' => json_encode($fetch_data),
681 - 'timeout' => 15
682 - ));
683 -
684 - if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
685 - return array('data' => array(), 'total' => 0);
686 - }
687 -
688 - $body = wp_remote_retrieve_body($response);
689 - $data = json_decode($body, true);
690 -
691 - $records = array();
692 - if (isset($data['vectors'])) {
693 - foreach ($data['vectors'] as $vector_id => $vector_data) {
694 - $metadata = $vector_data['metadata'] ?? array();
695 -
696 - // Filter by content type if specified
697 - if (!empty($content_type)) {
698 - $record_type = $metadata['type'] ?? 'content';
699 - if ($record_type !== $content_type) {
700 - continue;
701 - }
702 - }
703 -
704 - $created_at = $metadata['created_at'] ?? $metadata['last_updated'] ?? $metadata['timestamp'] ?? time();
705 - if (!is_numeric($created_at)) {
706 - $created_at = strtotime($created_at) ?: time();
707 - }
708 -
709 - $records[] = (object) array(
710 - 'id' => $vector_id,
711 - 'article_content' => $metadata['text'] ?? '',
712 - 'source_url' => $metadata['source_url'] ?? '',
713 - 'role_restriction' => $metadata['role_restriction'] ?? 'public',
714 - 'type' => $metadata['type'] ?? 'content',
715 - 'bot_id' => $bot_id,
716 - 'created_at' => $created_at,
717 - 'data_source' => 'pinecone',
718 - 'chunk_index' => isset($metadata['chunk_index']) ? intval($metadata['chunk_index']) : null,
719 - 'total_chunks' => isset($metadata['total_chunks']) ? intval($metadata['total_chunks']) : null,
720 - 'is_chunked' => isset($metadata['is_chunked']) ? (bool) $metadata['is_chunked'] : false
721 - );
722 - }
723 - }
724 -
725 - // Sort by date
726 - usort($records, function($a, $b) {
727 - return $b->created_at - $a->created_at;
728 - });
729 -
730 - $total = count($records);
731 - $paged_records = array_slice($records, 0, $per_page);
732 -
733 - $this->mxchat_batch_fetch_role_restrictions($paged_records, $bot_id);
734 -
735 - return array(
736 - 'data' => $paged_records,
737 - 'total' => $total
738 - );
739 -}
740 -
741 -/**
742 - * Generate a single optimized query vector for fetching records
743 - * Uses a center-weighted approach for best coverage
744 - */
745 -private function mxchat_generate_optimized_query_vector() {
746 - $dimensions = $this->mxchat_get_embedding_dimensions();
747 - $vector = array();
748 -
749 - // Create a normalized center-weighted vector
750 - $center = $dimensions / 2;
751 - for ($i = 0; $i < $dimensions; $i++) {
752 - $distance = abs($i - $center) / $center;
753 - $vector[] = (1 - $distance) * 0.5;
754 - }
755 -
756 - // Normalize to unit length
757 - $magnitude = sqrt(array_sum(array_map(function($x) { return $x * $x; }, $vector)));
758 - if ($magnitude > 0) {
759 - $vector = array_map(function($x) use ($magnitude) { return $x / $magnitude; }, $vector);
760 - }
761 -
762 - return $vector;
763 -}
764 -
765 -/**
766 - * Batch fetch role restrictions for a set of records
767 - * Uses a single query instead of N queries
768 - * ADDED 2.6.1: Prevents N+1 query problem
769 - */
770 -private function mxchat_batch_fetch_role_restrictions(&$records, $bot_id = 'default') {
771 - if (empty($records)) {
772 - return;
773 - }
774 -
775 - global $wpdb;
776 - $roles_table = $wpdb->prefix . 'mxchat_pinecone_roles';
777 -
778 - // Check if table exists
779 - $table_exists = $wpdb->get_var("SHOW TABLES LIKE '{$roles_table}'");
780 - if (!$table_exists) {
781 - return;
782 - }
783 -
784 - // Get all vector IDs that need role lookup
785 - $vector_ids = array();
786 - foreach ($records as $record) {
787 - if (empty($record->role_restriction) || $record->role_restriction === 'public') {
788 - $vector_ids[] = $record->id;
789 - }
790 - }
791 -
792 - if (empty($vector_ids)) {
793 - return;
794 - }
795 -
796 - // Check if bot_id column exists
797 - $columns = $wpdb->get_col("SHOW COLUMNS FROM {$roles_table}");
798 - $has_bot_id = in_array('bot_id', $columns);
799 -
800 - // Build single query with IN clause
801 - $placeholders = implode(',', array_fill(0, count($vector_ids), '%s'));
802 -
803 - if ($has_bot_id) {
804 - $query = $wpdb->prepare(
805 - "SELECT vector_id, role_restriction FROM {$roles_table} WHERE vector_id IN ({$placeholders}) AND bot_id = %s",
806 - array_merge($vector_ids, array($bot_id))
807 - );
808 - } else {
809 - $query = $wpdb->prepare(
810 - "SELECT vector_id, role_restriction FROM {$roles_table} WHERE vector_id IN ({$placeholders})",
811 - $vector_ids
812 - );
813 - }
814 -
815 - $results = $wpdb->get_results($query, OBJECT_K);
816 -
817 - // Apply role restrictions to records
818 - foreach ($records as &$record) {
819 - if (isset($results[$record->id])) {
820 - $record->role_restriction = $results[$record->id]->role_restriction;
821 - }
822 - }
823 -}
824 -
825 -/**
826 - * Safe version of get_recent_entries with memory limits
827 - * ADDED 2.6.1: Prevents memory exhaustion
828 - */
829 -private function mxchat_get_recent_entries_safe($pinecone_options, $bot_id = 'default', $limit = 500) {
830 - global $wpdb;
831 -
832 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
833 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
834 - $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
835 -
836 - if (empty($api_key) || empty($host)) {
837 - return array();
838 - }
839 -
840 - try {
841 - $all_records = array();
842 - $seen_ids = array();
843 - $query_url = "https://{$host}/query";
844 -
845 - // Use only 2 query vectors instead of 5 for better performance
846 - $fixed_vectors = array_slice($this->mxchat_generate_fixed_query_vectors(), 0, 2);
847 -
848 - foreach ($fixed_vectors as $query_vector) {
849 - // Limit topK to prevent memory issues
850 - $topK = min(500, $limit);
851 -
852 - $query_data = array(
853 - 'includeMetadata' => true,
854 - 'includeValues' => false,
855 - 'topK' => $topK,
856 - 'vector' => $query_vector
857 - );
858 -
859 - if (!empty($namespace)) {
860 - $query_data['namespace'] = $namespace;
861 - }
862 -
863 - $response = wp_remote_post($query_url, array(
864 - 'headers' => array(
865 - 'Api-Key' => $api_key,
866 - 'Content-Type' => 'application/json'
867 - ),
868 - 'body' => json_encode($query_data),
869 - 'timeout' => 15
870 - ));
871 -
872 - if (!is_wp_error($response) && wp_remote_retrieve_response_code($response) === 200) {
873 - $body = wp_remote_retrieve_body($response);
874 - $data = json_decode($body, true);
875 -
876 - if (isset($data['matches'])) {
877 - foreach ($data['matches'] as $match) {
878 - $match_id = $match['id'] ?? '';
879 - if (!empty($match_id) && !isset($seen_ids[$match_id])) {
880 - $metadata = $match['metadata'] ?? array();
881 -
882 - $created_at = $metadata['created_at'] ?? $metadata['last_updated'] ?? $metadata['timestamp'] ?? time();
883 - if (!is_numeric($created_at)) {
884 - $created_at = strtotime($created_at) ?: time();
885 - }
886 -
887 - $all_records[] = (object) array(
888 - 'id' => $match_id,
889 - 'article_content' => $metadata['text'] ?? '',
890 - 'source_url' => $metadata['source_url'] ?? '',
891 - 'role_restriction' => $metadata['role_restriction'] ?? 'public',
892 - 'type' => $metadata['type'] ?? 'content',
893 - 'bot_id' => $bot_id,
894 - 'created_at' => $created_at,
895 - 'data_source' => 'pinecone',
896 - 'chunk_index' => isset($metadata['chunk_index']) ? intval($metadata['chunk_index']) : null,
897 - 'total_chunks' => isset($metadata['total_chunks']) ? intval($metadata['total_chunks']) : null,
898 - 'is_chunked' => isset($metadata['is_chunked']) ? (bool) $metadata['is_chunked'] : false
899 - );
900 -
901 - $seen_ids[$match_id] = true;
902 -
903 - // Stop if we've reached our limit
904 - if (count($all_records) >= $limit) {
905 - break 2;
906 - }
907 - }
908 - }
909 - }
910 - }
911 -
912 - // Minimal delay between requests
913 - usleep(50000); // 0.05 second delay
914 - }
915 -
916 - // Sort by created_at (newest first) and apply limit
917 - usort($all_records, function($a, $b) {
918 - return $b->created_at - $a->created_at;
919 - });
920 -
921 - $limited_records = array_slice($all_records, 0, $limit);
922 -
923 - // Batch fetch role restrictions
924 - $this->mxchat_batch_fetch_role_restrictions($limited_records, $bot_id);
925 -
926 - return $limited_records;
927 -
928 - } catch (Exception $e) {
929 - //error_log('MxChat safe fetch exception: ' . $e->getMessage());
930 - MxChat_Admin::mxchat_log_debug('pinecone_error', 'Pinecone safe fetch error: ' . $e->getMessage());
931 - return array();
932 - }
933 -}
934 -/**
935 - * Get embedding dimensions based on the selected model
936 - * ADD THIS NEW FUNCTION
937 - */
938 - private function mxchat_get_embedding_dimensions() {
939 - $options = get_option('mxchat_options', array());
940 - $selected_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
941 -
942 - // Define dimensions for different models
943 - $model_dimensions = array(
944 - 'text-embedding-ada-002' => 1536,
945 - 'text-embedding-3-small' => 1536,
946 - 'text-embedding-3-large' => 3072,
947 - 'voyage-2' => 1024,
948 - 'voyage-large-2' => 1536,
949 - 'voyage-3-large' => 2048,
950 - 'gemini-embedding-001' => 1536,
951 - );
952 -
953 - // Check if it's a voyage model with custom dimensions
954 - if (strpos($selected_model, 'voyage-3-large') === 0) {
955 - $custom_dimensions = $options['voyage_output_dimension'] ?? 2048;
956 - return intval($custom_dimensions);
957 - }
958 -
959 - // Check if it's a gemini model with custom dimensions
960 - if (strpos($selected_model, 'gemini-embedding') === 0) {
961 - $custom_dimensions = $options['gemini_output_dimension'] ?? 1536;
962 - return intval($custom_dimensions);
963 - }
964 -
965 - // Return known dimensions or default to 1536
966 - return $model_dimensions[$selected_model] ?? 1536;
967 - }
968 -
969 - /**
970 - * Generate random unit vector with correct dimensions
971 - * ADD THIS NEW FUNCTION
972 - */
973 - private function mxchat_generate_random_vector() {
974 - $dimensions = $this->mxchat_get_embedding_dimensions();
975 -
976 - $random_vector = array();
977 - for ($i = 0; $i < $dimensions; $i++) {
978 - $random_vector[] = (rand(-1000, 1000) / 1000.0);
979 - }
980 -
981 - // Normalize the vector to unit length
982 - $magnitude = sqrt(array_sum(array_map(function($x) { return $x * $x; }, $random_vector)));
983 - if ($magnitude > 0) {
984 - $random_vector = array_map(function($x) use ($magnitude) { return $x / $magnitude; }, $random_vector);
985 - }
986 -
987 - return $random_vector;
988 - }
989 -
990 -
991 -/**
992 - * Get recent entries from Pinecone
993 - * UPDATED 2.6.1: Now uses safe version with memory limits to prevent crashes
994 - * @deprecated Use mxchat_get_recent_entries_safe() instead for new code
995 - */
996 -private function mxchat_get_recent_1k_entries($pinecone_options, $bot_id = 'default') {
997 - // Delegate to the safe version with a reasonable limit
998 - // This prevents crashes with large datasets (13K+ products)
999 - return $this->mxchat_get_recent_entries_safe($pinecone_options, $bot_id, 500);
1000 -}
1001 -/**
1002 - * Generate fixed query vectors for consistent results
1003 - */
1004 -private function mxchat_generate_fixed_query_vectors() {
1005 - $dimensions = $this->mxchat_get_embedding_dimensions();
1006 - $vectors = array();
1007 -
1008 - // Create 5 fixed vectors with different patterns for better coverage
1009 - $patterns = array(
1010 - 'zeros_with_ones' => 0.1, // Mostly zeros with some 1s
1011 - 'ascending' => 0.2, // Ascending pattern
1012 - 'descending' => 0.3, // Descending pattern
1013 - 'alternating' => 0.4, // Alternating positive/negative
1014 - 'center_weighted' => 0.5 // Higher values in center
1015 - );
1016 -
1017 - foreach ($patterns as $pattern_name => $seed) {
1018 - $vector = array();
1019 -
1020 - for ($i = 0; $i < $dimensions; $i++) {
1021 - switch ($pattern_name) {
1022 - case 'zeros_with_ones':
1023 - $vector[] = ($i % 10 === 0) ? 1.0 : 0.0;
1024 - break;
1025 - case 'ascending':
1026 - $vector[] = ($i / $dimensions) * 2 - 1; // Range -1 to 1
1027 - break;
1028 - case 'descending':
1029 - $vector[] = (($dimensions - $i) / $dimensions) * 2 - 1;
1030 - break;
1031 - case 'alternating':
1032 - $vector[] = ($i % 2 === 0) ? $seed : -$seed;
1033 - break;
1034 - case 'center_weighted':
1035 - $center = $dimensions / 2;
1036 - $distance = abs($i - $center) / $center;
1037 - $vector[] = (1 - $distance) * $seed;
1038 - break;
1039 - }
1040 - }
1041 -
1042 - // Normalize the vector to unit length
1043 - $magnitude = sqrt(array_sum(array_map(function($x) { return $x * $x; }, $vector)));
1044 - if ($magnitude > 0) {
1045 - $vector = array_map(function($x) use ($magnitude) { return $x / $magnitude; }, $vector);
1046 - }
1047 -
1048 - $vectors[] = $vector;
1049 - }
1050 -
1051 - return $vectors;
1052 -}
1053 -
1054 -
1055 -/**
1056 - * Scan Pinecone for processed content
1057 - * UPDATED 2.6.2: Uses direct ID lookup via fetch API instead of random vector scanning
1058 - * This removes the 10K record limit and scales to any database size
1059 - *
1060 - * @param array $pinecone_options Pinecone configuration options
1061 - * @param array $post_ids Optional array of specific post IDs to check (if empty, checks all published posts)
1062 - * @return array Processed data keyed by post ID
1063 - */
1064 -public function mxchat_scan_pinecone_for_processed_content($pinecone_options, $post_ids = array()) {
1065 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
1066 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
1067 -
1068 - if (empty($api_key) || empty($host)) {
1069 - return array();
1070 - }
1071 -
1072 - try {
1073 - // If no specific post IDs provided, get all published posts
1074 - if (empty($post_ids)) {
1075 - $posts = get_posts(array(
1076 - 'post_type' => 'any',
1077 - 'post_status' => 'publish',
1078 - 'posts_per_page' => -1,
1079 - 'fields' => 'ids',
1080 - 'no_found_rows' => true,
1081 - 'update_post_meta_cache' => false,
1082 - 'update_post_term_cache' => false,
1083 - ));
1084 - $post_ids = $posts;
1085 - }
1086 -
1087 - if (empty($post_ids)) {
1088 - return array();
1089 - }
1090 -
1091 - // Build a map of vector_id => post data for lookup
1092 - $vector_id_map = array();
1093 - foreach ($post_ids as $post_id) {
1094 - $permalink = get_permalink($post_id);
1095 - if ($permalink) {
1096 - $vector_id = md5($permalink);
1097 - $vector_id_map[$vector_id] = array(
1098 - 'post_id' => $post_id,
1099 - 'url' => $permalink
1100 - );
1101 - }
1102 - }
1103 -
1104 - if (empty($vector_id_map)) {
1105 - return array();
1106 - }
1107 -
1108 - // Batch check Pinecone using fetch API (max 1000 IDs per request)
1109 - $all_vector_ids = array_keys($vector_id_map);
1110 - $chunks = array_chunk($all_vector_ids, 1000);
1111 - $processed_data = array();
1112 -
1113 - foreach ($chunks as $chunk) {
1114 - $fetch_url = "https://{$host}/vectors/fetch";
1115 -
1116 - $response = wp_remote_post($fetch_url, array(
1117 - 'headers' => array(
1118 - 'Api-Key' => $api_key,
1119 - 'Content-Type' => 'application/json'
1120 - ),
1121 - 'body' => json_encode(array('ids' => $chunk)),
1122 - 'timeout' => 30
1123 - ));
1124 -
1125 - if (is_wp_error($response)) {
1126 - continue;
1127 - }
1128 -
1129 - $response_code = wp_remote_retrieve_response_code($response);
1130 - if ($response_code !== 200) {
1131 - continue;
1132 - }
1133 -
1134 - $body = wp_remote_retrieve_body($response);
1135 - $data = json_decode($body, true);
1136 -
1137 - // Process returned vectors
1138 - if (isset($data['vectors']) && is_array($data['vectors'])) {
1139 - foreach ($data['vectors'] as $vector_id => $vector_data) {
1140 - if (isset($vector_id_map[$vector_id])) {
1141 - $post_info = $vector_id_map[$vector_id];
1142 - $post_id = $post_info['post_id'];
1143 - $metadata = $vector_data['metadata'] ?? array();
1144 -
1145 - $created_at = $metadata['created_at'] ?? '';
1146 - $processed_date = 'Recently';
1147 - $timestamp = current_time('timestamp');
1148 -
1149 - if (!empty($created_at)) {
1150 - $ts = is_numeric($created_at) ? $created_at : strtotime($created_at);
1151 - if ($ts) {
1152 - $timestamp = $ts;
1153 - $processed_date = human_time_diff($ts, current_time('timestamp')) . ' ago';
1154 - }
1155 - }
1156 -
1157 - $processed_data[$post_id] = array(
1158 - 'db_id' => $vector_id,
1159 - 'processed_date' => $processed_date,
1160 - 'url' => $post_info['url'],
1161 - 'source' => 'pinecone',
1162 - 'timestamp' => $timestamp
1163 - );
1164 - }
1165 - }
1166 - }
1167 - }
1168 -
1169 - return $processed_data;
1170 -
1171 - } catch (Exception $e) {
1172 - return array();
1173 - }
1174 -}
1175 -
1176 -/**
1177 - * Get total count from Pinecone stats API
1178 - * UPDATED: Removed cache fallback reference
1179 - */
1180 -private function mxchat_get_pinecone_total_count($pinecone_options, $bot_id = 'default') {
1181 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
1182 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
1183 - $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
1184 -
1185 - if (empty($api_key) || empty($host)) {
1186 - return 0;
1187 - }
1188 -
1189 - try {
1190 - $stats_url = "https://{$host}/describe_index_stats";
1191 -
1192 - // describe_index_stats doesn't need a body, just the POST request
1193 - $response = wp_remote_post($stats_url, array(
1194 - 'headers' => array(
1195 - 'Api-Key' => $api_key,
1196 - 'Content-Type' => 'application/json'
1197 - ),
1198 - 'body' => '{}',
1199 - 'timeout' => 15
1200 - ));
1201 -
1202 - if (!is_wp_error($response) && wp_remote_retrieve_response_code($response) === 200) {
1203 - $body = wp_remote_retrieve_body($response);
1204 - $stats_data = json_decode($body, true);
1205 -
1206 - // If namespace is specified, get count from that specific namespace
1207 - // Pinecone stats response format: { namespaces: { "ns": { vectorCount: N } }, totalVectorCount: N }
1208 - if (!empty($namespace) && isset($stats_data['namespaces'][$namespace]['vectorCount'])) {
1209 - $namespace_count = intval($stats_data['namespaces'][$namespace]['vectorCount']);
1210 - //error_log('DEBUG: Got namespace-specific count: ' . $namespace_count . ' for namespace: ' . $namespace);
1211 - return $namespace_count;
1212 - }
1213 -
1214 - // If no namespace specified or namespace not found in response, use total
1215 - $total_count = $stats_data['totalVectorCount'] ?? 0;
1216 - if ($total_count > 0) {
1217 - //error_log('DEBUG: Got total count from stats API: ' . $total_count);
1218 - return intval($total_count);
1219 - }
1220 - }
1221 -
1222 - // If stats API fails, return 0 instead of using cache
1223 - return 0;
1224 -
1225 - } catch (Exception $e) {
1226 - //error_log('DEBUG: Exception getting total count: ' . $e->getMessage());
1227 - return 0;
1228 - }
1229 -}
1230 -
1231 -/**
1232 - * Get bot-specific Pinecone configuration for database operations
1233 - */
1234 -public function mxchat_get_bot_pinecone_options($bot_id = 'default') {
1235 - //error_log('DEBUG: Getting Pinecone options for bot: ' . $bot_id);
1236 -
1237 - // If default bot or multi-bot add-on not active, use default Pinecone config
1238 - if ($bot_id === 'default' || !class_exists('MxChat_Multi_Bot_Manager')) {
1239 - $addon_options = get_option('mxchat_pinecone_addon_options', array());
1240 - //error_log('DEBUG: Using default Pinecone options');
1241 - return $addon_options;
1242 - }
1243 -
1244 - // Get bot-specific configuration using the filter
1245 - $bot_config = apply_filters('mxchat_get_bot_pinecone_config', array(), $bot_id);
1246 -
1247 - //error_log('DEBUG: Bot config from filter: ' . print_r($bot_config, true));
1248 -
1249 - // Check if we got valid bot-specific config
1250 - if (!empty($bot_config) && isset($bot_config['use_pinecone']) && $bot_config['use_pinecone']) {
1251 - // Convert bot config to the format expected by fetch functions
1252 - $pinecone_options = array(
1253 - 'mxchat_use_pinecone' => '1',
1254 - 'mxchat_pinecone_api_key' => $bot_config['api_key'] ?? '',
1255 - 'mxchat_pinecone_host' => $bot_config['host'] ?? '',
1256 - 'mxchat_pinecone_namespace' => $bot_config['namespace'] ?? '',
1257 - 'mxchat_pinecone_environment' => '',
1258 - 'mxchat_pinecone_index' => ''
1259 - );
1260 -
1261 - //error_log('DEBUG: Returning bot-specific Pinecone options for bot: ' . $bot_id);
1262 - return $pinecone_options;
1263 - }
1264 -
1265 - // Fallback to default options if bot-specific config is invalid
1266 - //error_log('DEBUG: Bot-specific config invalid, falling back to default');
1267 - return get_option('mxchat_pinecone_addon_options', array());
1268 -}
1269 -
1270 -/**
1271 - * Get bot-specific Pinecone configuration
1272 - * Used in the knowledge retrieval functions
1273 - */
1274 -private function get_bot_pinecone_config($bot_id = 'default') {
1275 - //error_log("MXCHAT DEBUG: get_bot_pinecone_config called for bot: " . $bot_id);
1276 -
1277 - // If default bot or multi-bot add-on not active, use default Pinecone config
1278 - if ($bot_id === 'default' || !class_exists('MxChat_Multi_Bot_Manager')) {
1279 - //error_log("MXCHAT DEBUG: Using default Pinecone config (no multi-bot or bot is 'default')");
1280 - $addon_options = get_option('mxchat_pinecone_addon_options', array());
1281 - $config = array(
1282 - 'use_pinecone' => (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1'),
1283 - 'api_key' => $addon_options['mxchat_pinecone_api_key'] ?? '',
1284 - 'host' => $addon_options['mxchat_pinecone_host'] ?? '',
1285 - 'namespace' => $addon_options['mxchat_pinecone_namespace'] ?? ''
1286 - );
1287 - //error_log("MXCHAT DEBUG: Default config - use_pinecone: " . ($config['use_pinecone'] ? 'true' : 'false'));
1288 - return $config;
1289 - }
1290 -
1291 - //error_log("MXCHAT DEBUG: Calling filter 'mxchat_get_bot_pinecone_config' for bot: " . $bot_id);
1292 -
1293 - // Hook for multi-bot add-on to provide bot-specific Pinecone config
1294 - $bot_pinecone_config = apply_filters('mxchat_get_bot_pinecone_config', array(), $bot_id);
1295 -
1296 - if (!empty($bot_pinecone_config)) {
1297 - //error_log("MXCHAT DEBUG: Got bot-specific config from filter");
1298 - //error_log(" - use_pinecone: " . (isset($bot_pinecone_config['use_pinecone']) ? ($bot_pinecone_config['use_pinecone'] ? 'true' : 'false') : 'not set'));
1299 - //error_log(" - host: " . ($bot_pinecone_config['host'] ?? 'not set'));
1300 - //error_log(" - namespace: " . ($bot_pinecone_config['namespace'] ?? 'not set'));
1301 - } else {
1302 - //error_log("MXCHAT DEBUG: Filter returned empty config!");
1303 - }
1304 -
1305 - return is_array($bot_pinecone_config) ? $bot_pinecone_config : array();
1306 -}
1307 -
1308 -
1309 -/**
1310 - * Fetches vectors from Pinecone using provided IDs (for content selection feature)
1311 - */
1312 -public function fetch_pinecone_vectors_by_ids($pinecone_options, $vector_ids) {
1313 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
1314 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
1315 -
1316 - if (empty($api_key) || empty($host) || empty($vector_ids)) {
1317 - return array();
1318 - }
1319 -
1320 - try {
1321 - $fetch_url = "https://{$host}/vectors/fetch";
1322 -
1323 - // Pinecone fetch API allows fetching specific vectors by ID
1324 - $fetch_data = array(
1325 - 'ids' => array_values($vector_ids)
1326 - );
1327 -
1328 - $response = wp_remote_post($fetch_url, array(
1329 - 'headers' => array(
1330 - 'Api-Key' => $api_key,
1331 - 'Content-Type' => 'application/json'
1332 - ),
1333 - 'body' => json_encode($fetch_data),
1334 - 'timeout' => 30
1335 - ));
1336 -
1337 - if (is_wp_error($response)) {
1338 - return array();
1339 - }
1340 -
1341 - $response_code = wp_remote_retrieve_response_code($response);
1342 -
1343 - if ($response_code !== 200) {
1344 - return array();
1345 - }
1346 -
1347 - $body = wp_remote_retrieve_body($response);
1348 - $data = json_decode($body, true);
1349 -
1350 - if (!isset($data['vectors'])) {
1351 - return array();
1352 - }
1353 -
1354 - $processed_data = array();
1355 -
1356 - foreach ($data['vectors'] as $vector_id => $vector_data) {
1357 - $metadata = $vector_data['metadata'] ?? array();
1358 - $source_url = $metadata['source_url'] ?? '';
1359 -
1360 - if (!empty($source_url)) {
1361 - $post_id = url_to_postid($source_url);
1362 - if ($post_id) {
1363 - $created_at = $metadata['created_at'] ?? '';
1364 - $processed_date = 'Recently'; // Default
1365 -
1366 - if (!empty($created_at)) {
1367 - $timestamp = is_numeric($created_at) ? $created_at : strtotime($created_at);
1368 - if ($timestamp) {
1369 - $processed_date = human_time_diff($timestamp, current_time('timestamp')) . ' ago';
1370 - }
1371 - }
1372 -
1373 - $processed_data[$post_id] = array(
1374 - 'db_id' => $vector_id,
1375 - 'processed_date' => $processed_date,
1376 - 'url' => $source_url,
1377 - 'source' => 'pinecone',
1378 - 'timestamp' => $timestamp ?? current_time('timestamp')
1379 - );
1380 - }
1381 - }
1382 - }
1383 -
1384 - return $processed_data;
1385 -
1386 - } catch (Exception $e) {
1387 - return array();
1388 - }
1389 -}
1390 - // ========================================
1391 - // PINECONE DELETE OPERATIONS
1392 - // ========================================
1393 -
1394 -/**
1395 - * Delete all vectors from Pinecone
1396 - * Loops until all vectors are deleted (handles large databases)
1397 - */
1398 -public function mxchat_delete_all_from_pinecone($pinecone_options, $content_type_filter = '') {
1399 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
1400 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
1401 -
1402 - if (empty($api_key) || empty($host)) {
1403 - return array(
1404 - 'success' => false,
1405 - 'message' => 'Missing Pinecone API credentials'
1406 - );
1407 - }
1408 -
1409 - try {
1410 - $total_deleted = 0;
1411 - $failed_batches = 0;
1412 - $max_iterations = 100; // Safety limit to prevent infinite loops
1413 - $iteration = 0;
1414 -
1415 - // Loop until no more vectors are found
1416 - do {
1417 - $iteration++;
1418 -
1419 - // Get a batch of vector IDs from Pinecone
1420 - $records = $this->mxchat_get_recent_1k_entries($pinecone_options);
1421 - $vector_ids = array();
1422 -
1423 - foreach ($records as $record) {
1424 - if (!empty($record->id)) {
1425 - // If content type filter is active, only include matching records
1426 - if (!empty($content_type_filter)) {
1427 - $record_type = isset($record->type) ? $record->type : '';
1428 - if ($record_type !== $content_type_filter) {
1429 - continue;
1430 - }
1431 - }
1432 - $vector_ids[] = $record->id;
1433 - }
1434 - }
1435 -
1436 - // If no matching vectors found, we're done
1437 - // (either no records at all, or all remaining records are non-matching types)
1438 - if (empty($vector_ids)) {
1439 - break;
1440 - }
1441 -
1442 - // Delete vectors in batches (Pinecone has limits on batch operations)
1443 - $batch_size = 100;
1444 - $batches = array_chunk($vector_ids, $batch_size);
1445 -
1446 - foreach ($batches as $batch) {
1447 - $result = $this->mxchat_delete_pinecone_batch($batch, $api_key, $host);
1448 - if ($result['success']) {
1449 - $total_deleted += count($batch);
1450 - } else {
1451 - $failed_batches++;
1452 - }
1453 - }
1454 -
1455 - // Small delay to avoid rate limiting
1456 - usleep(100000); // 100ms
1457 -
1458 - } while ($iteration < $max_iterations);
1459 -
1460 - if ($total_deleted === 0) {
1461 - return array(
1462 - 'success' => true,
1463 - 'message' => 'No vectors found to delete'
1464 - );
1465 - }
1466 -
1467 - if ($failed_batches > 0) {
1468 - return array(
1469 - 'success' => false,
1470 - 'message' => sprintf('Deleted %d vectors, but %d batches failed', $total_deleted, $failed_batches)
1471 - );
1472 - }
1473 -
1474 - return array(
1475 - 'success' => true,
1476 - 'message' => "Successfully deleted {$total_deleted} vectors from Pinecone"
1477 - );
1478 -
1479 - } catch (Exception $e) {
1480 - return array(
1481 - 'success' => false,
1482 - 'message' => $e->getMessage()
1483 - );
1484 - }
1485 -}
1486 -
1487 - /**
1488 - * Deletes batch of vectors from Pinecone database
1489 - */
1490 - public function mxchat_delete_pinecone_batch($vector_ids, $api_key, $host) {
1491 - // Build the API endpoint
1492 - $api_endpoint = "https://{$host}/vectors/delete";
1493 -
1494 - // Prepare the request body with the IDs
1495 - $request_body = array(
1496 - 'ids' => $vector_ids
1497 - );
1498 -
1499 - // Make the deletion request
1500 - $response = wp_remote_post($api_endpoint, array(
1501 - 'headers' => array(
1502 - 'Api-Key' => $api_key,
1503 - 'accept' => 'application/json',
1504 - 'content-type' => 'application/json'
1505 - ),
1506 - 'body' => wp_json_encode($request_body),
1507 - 'timeout' => 60, // Increased timeout for batch operations
1508 - 'method' => 'POST'
1509 - ));
1510 -
1511 - // Handle WordPress HTTP API errors
1512 - if (is_wp_error($response)) {
1513 - MxChat_Admin::mxchat_log_debug('pinecone_error', 'Pinecone batch deletion failed: ' . $response->get_error_message());
1514 - return array(
1515 - 'success' => false,
1516 - 'message' => $response->get_error_message()
1517 - );
1518 - }
1519 -
1520 - // Check response status
1521 - $response_code = wp_remote_retrieve_response_code($response);
1522 - $response_body = wp_remote_retrieve_body($response);
1523 -
1524 - // Pinecone returns 200 for successful deletion
1525 - if ($response_code !== 200) {
1526 - MxChat_Admin::mxchat_log_debug('pinecone_error', 'Pinecone batch deletion failed (HTTP ' . $response_code . ')', array('response' => substr($response_body, 0, 200)));
1527 - return array(
1528 - 'success' => false,
1529 - 'message' => sprintf(
1530 - 'Pinecone API error (HTTP %d): %s',
1531 - $response_code,
1532 - $response_body
1533 - )
1534 - );
1535 - }
1536 -
1537 - return array(
1538 - 'success' => true,
1539 - 'message' => 'Batch deleted successfully from Pinecone'
1540 - );
1541 - }
1542 -
1543 -
1544 -/**
1545 - * Deletes vector from Pinecone using API request
1546 - */
1547 -public function mxchat_delete_from_pinecone_by_vector_id($vector_id, $api_key, $host, $namespace = '') {
1548 - //error_log('=== PINECONE DELETE OPERATION ===');
1549 - //error_log('Vector ID: ' . $vector_id);
1550 - //error_log('Host: ' . $host);
1551 - //error_log('API Key: ' . (empty($api_key) ? 'EMPTY' : 'SET'));
1552 -
1553 - // First, let's verify the vector exists before trying to delete
1554 - $fetch_url = "https://{$host}/vectors/fetch";
1555 -
1556 - $fetch_params = array(
1557 - 'ids' => array($vector_id)
1558 - );
1559 -
1560 - // Add namespace if provided (though you said you're not using namespaces)
1561 - if (!empty($namespace)) {
1562 - $fetch_params['namespace'] = $namespace;
1563 - }
1564 -
1565 - // Construct URL with query parameters for GET request
1566 - $fetch_url_with_params = $fetch_url . '?' . http_build_query($fetch_params);
1567 -
1568 - $fetch_response = wp_remote_get($fetch_url_with_params, array(
1569 - 'headers' => array(
1570 - 'Api-Key' => $api_key,
1571 - 'accept' => 'application/json'
1572 - ),
1573 - 'timeout' => 15
1574 - ));
1575 -
1576 - if (!is_wp_error($fetch_response) && wp_remote_retrieve_response_code($fetch_response) === 200) {
1577 - $fetch_body = wp_remote_retrieve_body($fetch_response);
1578 - $fetch_data = json_decode($fetch_body, true);
1579 -
1580 - //error_log('DEBUG: Fetch response: ' . print_r($fetch_data, true));
1581 -
1582 - if (isset($fetch_data['vectors']) && isset($fetch_data['vectors'][$vector_id])) {
1583 - //error_log('DEBUG: Vector EXISTS in this index before deletion');
1584 - } else {
1585 - //error_log('WARNING: Vector NOT FOUND in this index! It may be in a different bot\'s index');
1586 - // You might want to return an error here
1587 - }
1588 - } else {
1589 - //error_log('DEBUG: Could not fetch vector to verify existence');
1590 - }
1591 -
1592 - // Now proceed with deletion
1593 - $api_endpoint = "https://{$host}/vectors/delete";
1594 -
1595 - // Prepare the request body with the ID
1596 - $request_body = array(
1597 - 'ids' => array($vector_id)
1598 - );
1599 -
1600 - // Add namespace if provided
1601 - if (!empty($namespace)) {
1602 - $request_body['namespace'] = $namespace;
1603 - }
1604 -
1605 - //error_log('DEBUG: Delete request body: ' . json_encode($request_body));
1606 - //error_log('DEBUG: Delete endpoint: ' . $api_endpoint);
1607 -
1608 - // Make the deletion request
1609 - $response = wp_remote_post($api_endpoint, array(
1610 - 'headers' => array(
1611 - 'Api-Key' => $api_key,
1612 - 'accept' => 'application/json',
1613 - 'content-type' => 'application/json'
1614 - ),
1615 - 'body' => wp_json_encode($request_body),
1616 - 'timeout' => 30
1617 - ));
1618 -
1619 - // Handle WordPress HTTP API errors
1620 - if (is_wp_error($response)) {
1621 - //error_log('DEBUG: WP Error: ' . $response->get_error_message());
1622 - return array(
1623 - 'success' => false,
1624 - 'message' => $response->get_error_message()
1625 - );
1626 - }
1627 -
1628 - // Check response status
1629 - $response_code = wp_remote_retrieve_response_code($response);
1630 - $response_body = wp_remote_retrieve_body($response);
1631 -
1632 - //error_log('DEBUG: Delete response code: ' . $response_code);
1633 - //error_log('DEBUG: Delete response body: ' . $response_body);
1634 -
1635 - // Pinecone returns 200 for successful deletion (even if vector didn't exist)
1636 - if ($response_code !== 200) {
1637 - //error_log('DEBUG: Non-200 response from Pinecone');
1638 - return array(
1639 - 'success' => false,
1640 - 'message' => sprintf(
1641 - 'Pinecone API error (HTTP %d): %s',
1642 - $response_code,
1643 - $response_body
1644 - )
1645 - );
1646 - }
1647 -
1648 - // After deletion, verify it's actually gone
1649 - sleep(1); // Give Pinecone a moment to process
1650 -
1651 - $verify_response = wp_remote_get($fetch_url_with_params, array(
1652 - 'headers' => array(
1653 - 'Api-Key' => $api_key,
1654 - 'accept' => 'application/json'
1655 - ),
1656 - 'timeout' => 15
1657 - ));
1658 -
1659 - if (!is_wp_error($verify_response) && wp_remote_retrieve_response_code($verify_response) === 200) {
1660 - $verify_body = wp_remote_retrieve_body($verify_response);
1661 - $verify_data = json_decode($verify_body, true);
1662 -
1663 - if (isset($verify_data['vectors']) && isset($verify_data['vectors'][$vector_id])) {
1664 - //error_log('ERROR: Vector STILL EXISTS after deletion attempt!');
1665 - return array(
1666 - 'success' => false,
1667 - 'message' => 'Vector still exists after deletion attempt'
1668 - );
1669 - } else {
1670 - //error_log('SUCCESS: Vector confirmed deleted (or never existed)');
1671 - }
1672 - }
1673 -
1674 - //error_log('=== END PINECONE DELETE OPERATION ===');
1675 -
1676 - return array(
1677 - 'success' => true,
1678 - 'message' => 'Vector deleted successfully from Pinecone'
1679 - );
1680 -}
1681 -
1682 - /**
1683 - * Deletes data from Pinecone index using API key
1684 - */
1685 - private function mxchat_delete_from_pinecone($urls, $api_key, $environment, $index_name) {
1686 - // Get the Pinecone host from options (matching your store_in_pinecone_main pattern)
1687 - $options = get_option('mxchat_pinecone_addon_options');
1688 - $host = $options['mxchat_pinecone_host'] ?? '';
1689 -
1690 - if (empty($host)) {
1691 - return array(
1692 - 'success' => false,
1693 - 'message' => 'Pinecone host is not configured. Please set the host in your settings.'
1694 - );
1695 - }
1696 -
1697 - // Build API endpoint using the configured host
1698 - $api_endpoint = "https://{$host}/vectors/delete";
1699 -
1700 - // Create vector IDs from URLs (matching your store method's ID generation)
1701 - $vector_ids = array_map('md5', $urls);
1702 -
1703 - // Prepare the delete request body
1704 - $request_body = array(
1705 - 'ids' => $vector_ids,
1706 - 'filter' => array(
1707 - 'source_url' => array(
1708 - '$in' => $urls
1709 - )
1710 - )
1711 - );
1712 -
1713 - // Make the deletion request
1714 - $response = wp_remote_post($api_endpoint, array(
1715 - 'headers' => array(
1716 - 'Api-Key' => $api_key,
1717 - 'accept' => 'application/json',
1718 - 'content-type' => 'application/json'
1719 - ),
1720 - 'body' => wp_json_encode($request_body),
1721 - 'timeout' => 30,
1722 - 'data_format' => 'body'
1723 - ));
1724 -
1725 - // Handle WordPress HTTP API errors
1726 - if (is_wp_error($response)) {
1727 - return array(
1728 - 'success' => false,
1729 - 'message' => $response->get_error_message()
1730 - );
1731 - }
1732 -
1733 - // Check response status
1734 - $response_code = wp_remote_retrieve_response_code($response);
1735 - if ($response_code !== 200) {
1736 - $body = wp_remote_retrieve_body($response);
1737 - return array(
1738 - 'success' => false,
1739 - 'message' => sprintf(
1740 - 'Pinecone API error (HTTP %d): %s',
1741 - $response_code,
1742 - $body
1743 - )
1744 - );
1745 - }
1746 -
1747 - // Parse response body
1748 - $body = wp_remote_retrieve_body($response);
1749 - $response_data = json_decode($body, true);
1750 -
1751 - // Final validation of the response
1752 - if (json_last_error() !== JSON_ERROR_NONE) {
1753 - return array(
1754 - 'success' => false,
1755 - 'message' => 'Failed to parse Pinecone response: ' . json_last_error_msg()
1756 - );
1757 - }
1758 -
1759 - return array(
1760 - 'success' => true,
1761 - 'message' => sprintf('Successfully deleted %d vectors from Pinecone', count($vector_ids))
1762 - );
1763 - }
1764 -
1765 -
1766 -
1767 -/**
1768 - * Retrieves processed content from Pinecone API
1769 - *
1770 - * @param array $pinecone_options Pinecone configuration options
1771 - * @param array $post_ids Optional array of specific post IDs to check (if empty, checks all)
1772 - * @return array Processed data keyed by post ID
1773 - */
1774 -public function mxchat_get_pinecone_processed_content($pinecone_options, $post_ids = array()) {
1775 - $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
1776 - $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
1777 -
1778 - if (empty($api_key) || empty($host)) {
1779 - return array();
1780 - }
1781 -
1782 - $pinecone_data = array();
1783 -
1784 - try {
1785 - // Always get fresh data from Pinecone
1786 - $pinecone_data = $this->mxchat_scan_pinecone_for_processed_content($pinecone_options, $post_ids);
1787 -
1788 - // Method 2: Final fallback - try stats endpoint (if available)
1789 - if (empty($pinecone_data)) {
1790 - $stats_url = "https://{$host}/describe_index_stats";
1791 -
1792 - $response = wp_remote_post($stats_url, array(
1793 - 'headers' => array(
1794 - 'Api-Key' => $api_key,
1795 - 'Content-Type' => 'application/json'
1796 - ),
1797 - 'body' => json_encode(array()),
1798 - 'timeout' => 30
1799 - ));
1800 -
1801 - if (!is_wp_error($response) && wp_remote_retrieve_response_code($response) === 200) {
1802 - $body = wp_remote_retrieve_body($response);
1803 - $stats_data = json_decode($body, true);
1804 - }
1805 - }
1806 -
1807 - } catch (Exception $e) {
1808 - // Log error but don't return cached data
1809 - }
1810 -
1811 - return $pinecone_data;
1812 -}
1813 - // ========================================
1814 - // HELPER METHODS
1815 - // ========================================
1816 -
1817 - /**
1818 - * Validates Pinecone API credentials
1819 - */
1820 - private function mxchat_validate_pinecone_credentials($api_key, $host) {
1821 - if (empty($api_key) || empty($host)) {
1822 - return false;
1823 - }
1824 - return true;
1825 - }
1826 -
1827 - /**
1828 - * Get Pinecone API credentials from options
1829 - */
1830 - private function mxchat_get_pinecone_credentials() {
1831 - $options = get_option('mxchat_options', array());
1832 - return array(
1833 - 'api_key' => isset($options['pinecone_api_key']) ? $options['pinecone_api_key'] : '',
1834 - 'host' => isset($options['pinecone_host']) ? $options['pinecone_host'] : ''
1835 - );
1836 - }
1837 -
1838 - /**
1839 - * Log Pinecone operation errors
1840 - */
1841 - private function log_pinecone_error($operation, $error_message) {
1842 - //error_log("MxChat Pinecone {$operation} Error: " . $error_message);
1843 - }
1844 -
1845 - // ========================================
1846 - // STATIC ACCESS METHODS (for backward compatibility)
1847 - // ========================================
1848 -
1849 - /**
1850 - * Get singleton instance
1851 - */
1852 - public static function get_instance() {
1853 - static $instance = null;
1854 - if ($instance === null) {
1855 - $instance = new self();
1856 - }
1857 - return $instance;
1858 - }
1859 -}
1860 -
1861 -// Initialize the Pinecone manager
1862 -$mxchat_pinecone_manager = MxChat_Pinecone_Manager::get_instance();
1 +<?php
2 +/**
3 + * File: admin/class-pinecone-manager.php
4 + *
5 + * Handles all Pinecone vector database operations for MxChat
6 + */
7 +
8 +if (!defined('ABSPATH')) {
9 + exit; // Exit if accessed directly
10 +}
11 +
12 +class MxChat_Pinecone_Manager {
13 +
14 + /**
15 + * Constructor
16 + */
17 + public function __construct() {
18 + }
19 +
20 + // ========================================
21 + // PINECONE FETCH OPERATIONS
22 + // ========================================
23 +
24 +
25 +/**
26 + * Fetches records from Pinecone with bot-specific filtering
27 + * UPDATED 2.6.1: Optimized for large datasets - uses server-side pagination
28 + */
29 +public function mxchat_fetch_pinecone_records($pinecone_options, $search_query = '', $page = 1, $per_page = 20, $bot_id = 'default', $content_type = '') {
30 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
31 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
32 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
33 +
34 + if (empty($api_key) || empty($host)) {
35 + return array('data' => array(), 'total' => 0, 'total_in_database' => 0, 'showing_recent_only' => false);
36 + }
37 +
38 + // Document index (plan 362c31): cursor-paged listing + BM25 search through the documents API.
39 + if (class_exists('MxChat_Pinecone_Documents') && MxChat_Pinecone_Documents::is_document_options($pinecone_options)) {
40 + $doc_result = MxChat_Pinecone_Documents::fetch_records($pinecone_options, $search_query, $page, $per_page, $bot_id, $content_type);
41 + if (!empty($doc_result['data'])) {
42 + $this->mxchat_batch_fetch_role_restrictions($doc_result['data'], $bot_id);
43 + }
44 + return $doc_result;
45 + }
46 +
47 + try {
48 + // Get total count for the banner message (bot-specific) - lightweight call
49 + $total_in_database = $this->mxchat_get_pinecone_total_count($pinecone_options, $bot_id);
50 +
51 + // For large databases, use optimized paginated fetching
52 + // Only fetch what we need for the current page, not all 1K records
53 + if ($total_in_database > 500) {
54 + $result = $this->mxchat_fetch_pinecone_page_optimized($pinecone_options, $search_query, $page, $per_page, $bot_id, $content_type);
55 + $result['total_in_database'] = $total_in_database;
56 + $result['showing_recent_only'] = true; // Always show banner when we're limiting results
57 +
58 + // Plan dd6e10: the list path used to report the size of its one page
59 + // fetch (per_page * 2 = 50) as 'total', so every index over 500
60 + // vectors read "Knowledge Entries (50)" and paginated to two pages.
61 + // The only honest number on this path is the one we already fetched
62 + // above — the index / namespace vector count — so return that,
63 + // say it is vectors (a long entry is several of them), and flag
64 + // that pages come from a cursor, not from a total. Semantic search
65 + // keeps its own total: that is a real count of what matched.
66 + if (empty($search_query)) {
67 + $result['total'] = $total_in_database;
68 + $result['count_unit'] = 'vectors';
69 + $result['cursor_pagination'] = true;
70 + $result['has_next'] = !empty($result['has_next']);
71 + }
72 + return $result;
73 + }
74 +
75 + // For smaller databases, use the existing approach but with safety limits
76 + $all_records = $this->mxchat_get_recent_entries_safe($pinecone_options, $bot_id, 500);
77 +
78 + // Filter by content type if provided
79 + if (!empty($content_type)) {
80 + $all_records = array_filter($all_records, function($record) use ($content_type) {
81 + $record_type = $record->type ?? 'content';
82 + return $record_type === $content_type;
83 + });
84 + $all_records = array_values($all_records); // Re-index array
85 + }
86 +
87 + // Filter by search query if provided
88 + if (!empty($search_query)) {
89 + $all_records = array_filter($all_records, function($record) use ($search_query) {
90 + $content = $record->article_content ?? '';
91 + $source_url = $record->source_url ?? '';
92 + return stripos($content, $search_query) !== false || stripos($source_url, $search_query) !== false;
93 + });
94 + $all_records = array_values($all_records); // Re-index array
95 + }
96 +
97 + // UPDATED 2.6.3: Group records by source_url for chunk-aware pagination
98 + // This ensures pagination shows X entries per page, not X chunks
99 + $grouped_by_url = array();
100 + $empty_url_records = array();
101 +
102 + foreach ($all_records as $record) {
103 + $source_url = $record->source_url ?? '';
104 + if (empty($source_url)) {
105 + $empty_url_records[] = $record;
106 + } else {
107 + if (!isset($grouped_by_url[$source_url])) {
108 + $grouped_by_url[$source_url] = array();
109 + }
110 + $grouped_by_url[$source_url][] = $record;
111 + }
112 + }
113 +
114 + // Count unique entries (unique URLs + individual empty-URL records)
115 + $total_unique_entries = count($grouped_by_url) + count($empty_url_records);
116 +
117 + // Paginate by unique entries
118 + $offset = ($page - 1) * $per_page;
119 +
120 + // Build ordered list of URL groups (newest first based on first record)
121 + $url_groups_ordered = array_keys($grouped_by_url);
122 +
123 + // Get the URLs for this page
124 + $page_urls = array_slice($url_groups_ordered, $offset, $per_page);
125 +
126 + // Collect all records for this page's URLs
127 + $paged_records = array();
128 + foreach ($page_urls as $url) {
129 + foreach ($grouped_by_url[$url] as $record) {
130 + $paged_records[] = $record;
131 + }
132 + }
133 +
134 + // Add empty-URL records if they fall within this page's range
135 + $remaining_slots = $per_page - count($page_urls);
136 + $empty_offset = max(0, $offset - count($grouped_by_url));
137 + if ($remaining_slots > 0 && $empty_offset < count($empty_url_records)) {
138 + $empty_page_records = array_slice($empty_url_records, $empty_offset, $remaining_slots);
139 + $paged_records = array_merge($paged_records, $empty_page_records);
140 + }
141 +
142 + return array(
143 + 'data' => $paged_records,
144 + 'total' => $total_unique_entries,
145 + 'total_in_database' => $total_in_database,
146 + 'showing_recent_only' => ($total_in_database > 500)
147 + );
148 +
149 + } catch (Exception $e) {
150 + //error_log('MxChat Pinecone fetch error: ' . $e->getMessage());
151 + MxChat_Admin::mxchat_log_debug('pinecone_error', 'Pinecone fetch error: ' . $e->getMessage());
152 + return array('data' => array(), 'total' => 0, 'total_in_database' => 0, 'showing_recent_only' => false);
153 + }
154 +}
155 +
156 +/**
157 + * Optimized fetch for large Pinecone databases
158 + * ADDED 2.6.1: Prevents crashes with large datasets
159 + * UPDATED 2.6.1: When searching, uses semantic search with embedded query for accurate results across all 13K+ records
160 + */
161 +private function mxchat_fetch_pinecone_page_optimized($pinecone_options, $search_query = '', $page = 1, $per_page = 20, $bot_id = 'default', $content_type = '') {
162 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
163 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
164 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
165 +
166 + try {
167 + // If user is searching, use semantic search with embedded query
168 + // This searches ALL records in Pinecone, not just fetched ones
169 + if (!empty($search_query)) {
170 + return $this->mxchat_semantic_search_pinecone($pinecone_options, $search_query, $page, $per_page, $bot_id, $content_type);
171 + }
172 +
173 + // For browsing (no search), use Pinecone's list endpoint for true pagination
174 + return $this->mxchat_list_pinecone_records($pinecone_options, $page, $per_page, $bot_id, $content_type);
175 +
176 + } catch (Exception $e) {
177 + //error_log('MxChat optimized fetch exception: ' . $e->getMessage());
178 + MxChat_Admin::mxchat_log_debug('pinecone_error', 'Pinecone optimized fetch error: ' . $e->getMessage());
179 + return array('data' => array(), 'total' => 0);
180 + }
181 +}
182 +
183 +/**
184 + * Semantic search across ALL Pinecone records using embedded search query
185 + * This allows users to find any of their 13K+ products by searching
186 + * ADDED 2.6.1
187 + */
188 +private function mxchat_semantic_search_pinecone($pinecone_options, $search_query, $page = 1, $per_page = 20, $bot_id = 'default', $content_type = '') {
189 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
190 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
191 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
192 +
193 + // Get embedding for the search query
194 + $query_embedding = $this->mxchat_get_search_embedding($search_query);
195 +
196 + if (empty($query_embedding)) {
197 + // Fallback to text-based search if embedding fails
198 + return $this->mxchat_text_search_fallback($pinecone_options, $search_query, $page, $per_page, $bot_id, $content_type);
199 + }
200 +
201 + $query_url = "https://{$host}/query";
202 +
203 + // Fetch more results to allow for filtering and pagination
204 + $fetch_limit = min(($page * $per_page) + 100, 500);
205 +
206 + $query_data = array(
207 + 'includeMetadata' => true,
208 + 'includeValues' => false,
209 + 'topK' => $fetch_limit,
210 + 'vector' => $query_embedding
211 + );
212 +
213 + if (!empty($namespace)) {
214 + $query_data['namespace'] = $namespace;
215 + }
216 +
217 + // Add metadata filter for content type if specified
218 + if (!empty($content_type)) {
219 + $query_data['filter'] = array(
220 + 'type' => array('$eq' => $content_type)
221 + );
222 + }
223 +
224 + $response = wp_remote_post($query_url, array(
225 + 'headers' => array(
226 + 'Api-Key' => $api_key,
227 + 'Content-Type' => 'application/json'
228 + ),
229 + 'body' => json_encode($query_data),
230 + 'timeout' => 20
231 + ));
232 +
233 + if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
234 + return $this->mxchat_text_search_fallback($pinecone_options, $search_query, $page, $per_page, $bot_id, $content_type);
235 + }
236 +
237 + $body = wp_remote_retrieve_body($response);
238 + $data = json_decode($body, true);
239 +
240 + $records = array();
241 + if (isset($data['matches'])) {
242 + foreach ($data['matches'] as $match) {
243 + $metadata = $match['metadata'] ?? array();
244 + $created_at = $metadata['created_at'] ?? $metadata['last_updated'] ?? $metadata['timestamp'] ?? time();
245 + if (!is_numeric($created_at)) {
246 + $created_at = strtotime($created_at) ?: time();
247 + }
248 +
249 + $records[] = (object) array(
250 + 'id' => $match['id'] ?? '',
251 + 'article_content' => $metadata['text'] ?? '',
252 + 'source_url' => $metadata['source_url'] ?? '',
253 + 'role_restriction' => $metadata['role_restriction'] ?? 'public',
254 + 'type' => $metadata['type'] ?? 'content',
255 + 'bot_id' => $bot_id,
256 + 'created_at' => $created_at,
257 + 'data_source' => 'pinecone',
258 + 'relevance_score' => $match['score'] ?? 0,
259 + 'chunk_index' => isset($metadata['chunk_index']) ? intval($metadata['chunk_index']) : null,
260 + 'total_chunks' => isset($metadata['total_chunks']) ? intval($metadata['total_chunks']) : null,
261 + 'is_chunked' => isset($metadata['is_chunked']) ? (bool) $metadata['is_chunked'] : false
262 + );
263 + }
264 + }
265 +
266 + // For semantic search, results are already sorted by relevance (score)
267 + // No need to re-sort by date
268 +
269 + $total = count($records);
270 + $offset = ($page - 1) * $per_page;
271 + $paged_records = array_slice($records, $offset, $per_page);
272 +
273 + $this->mxchat_batch_fetch_role_restrictions($paged_records, $bot_id);
274 +
275 + return array(
276 + 'data' => $paged_records,
277 + 'total' => $total
278 + );
279 +}
280 +
281 +/**
282 + * Get embedding vector for a search query
283 + * Uses the same embedding model configured for the knowledge base
284 + * ADDED 2.6.1
285 + */
286 +private function mxchat_get_search_embedding($search_query) {
287 + $options = get_option('mxchat_options', array());
288 +
289 + // Custom Provider embeddings first, as everywhere else (plan 418afd): the
290 + // records were embedded with the custom model, so the query must be too.
291 + // A failure returns null, which sends the caller to its text search.
292 + if (isset($options['custom_provider_for_embeddings']) && $options['custom_provider_for_embeddings'] === 'on') {
293 + $custom = MxChat_Utils::generate_embedding_custom($search_query, $options);
294 + return is_array($custom) ? $custom : null;
295 + }
296 +
297 + $embedding_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
298 +
299 + // Determine which API to use based on model
300 + if (strpos($embedding_model, 'voyage-') === 0) {
301 + return $this->mxchat_get_voyage_embedding($search_query, $options, $embedding_model);
302 + } elseif (strpos($embedding_model, 'gemini-') === 0) {
303 + return $this->mxchat_get_gemini_embedding($search_query, $options, $embedding_model);
304 + } else {
305 + return $this->mxchat_get_openai_embedding($search_query, $options, $embedding_model);
306 + }
307 +}
308 +
309 +/**
310 + * Get OpenAI embedding for search query
311 + */
312 +private function mxchat_get_openai_embedding($text, $options, $model) {
313 + $api_key = $options['api_key'] ?? '';
314 + if (empty($api_key)) {
315 + return null;
316 + }
317 +
318 + $response = wp_remote_post('https://api.openai.com/v1/embeddings', array(
319 + 'headers' => array(
320 + 'Authorization' => 'Bearer ' . $api_key,
321 + 'Content-Type' => 'application/json'
322 + ),
323 + 'body' => json_encode(array(
324 + 'model' => $model,
325 + 'input' => $text
326 + )),
327 + 'timeout' => 15
328 + ));
329 +
330 + if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
331 + return null;
332 + }
333 +
334 + $body = json_decode(wp_remote_retrieve_body($response), true);
335 + return $body['data'][0]['embedding'] ?? null;
336 +}
337 +
338 +/**
339 + * Get Voyage AI embedding for search query
340 + */
341 +private function mxchat_get_voyage_embedding($text, $options, $model) {
342 + $api_key = $options['voyage_api_key'] ?? '';
343 + if (empty($api_key)) {
344 + return null;
345 + }
346 +
347 + $request_body = array(
348 + 'model' => $model,
349 + 'input' => $text,
350 + 'input_type' => 'query'
351 + );
352 +
353 + // Add output dimensions for voyage-3-large if configured
354 + if (strpos($model, 'voyage-3-large') === 0 && !empty($options['voyage_output_dimension'])) {
355 + $request_body['output_dimension'] = intval($options['voyage_output_dimension']);
356 + }
357 +
358 + $response = wp_remote_post('https://api.voyageai.com/v1/embeddings', array(
359 + 'headers' => array(
360 + 'Authorization' => 'Bearer ' . $api_key,
361 + 'Content-Type' => 'application/json'
362 + ),
363 + 'body' => json_encode($request_body),
364 + 'timeout' => 15
365 + ));
366 +
367 + if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
368 + return null;
369 + }
370 +
371 + $body = json_decode(wp_remote_retrieve_body($response), true);
372 + return $body['data'][0]['embedding'] ?? null;
373 +}
374 +
375 +/**
376 + * Get Google Gemini embedding for search query
377 + */
378 +private function mxchat_get_gemini_embedding($text, $options, $model) {
379 + $api_key = $options['gemini_api_key'] ?? '';
380 + if (empty($api_key)) {
381 + return null;
382 + }
383 +
384 + $url = "https://generativelanguage.googleapis.com/v1beta/models/{$model}:embedContent?key={$api_key}";
385 +
386 + $request_body = array(
387 + 'model' => "models/{$model}",
388 + 'content' => array(
389 + 'parts' => array(
390 + array('text' => $text)
391 + )
392 + ),
393 + 'taskType' => 'RETRIEVAL_QUERY'
394 + );
395 +
396 + // Add output dimensions if configured
397 + if (!empty($options['gemini_output_dimension'])) {
398 + $request_body['outputDimensionality'] = intval($options['gemini_output_dimension']);
399 + }
400 +
401 + $response = wp_remote_post($url, array(
402 + 'headers' => array(
403 + 'Content-Type' => 'application/json'
404 + ),
405 + 'body' => json_encode($request_body),
406 + 'timeout' => 15
407 + ));
408 +
409 + if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
410 + return null;
411 + }
412 +
413 + $body = json_decode(wp_remote_retrieve_body($response), true);
414 + return $body['embedding']['values'] ?? null;
415 +}
416 +
417 +/**
418 + * Fallback text search when embedding fails
419 + * Fetches more records and filters by text match
420 + * ADDED 2.6.1
421 + */
422 +private function mxchat_text_search_fallback($pinecone_options, $search_query, $page, $per_page, $bot_id, $content_type) {
423 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
424 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
425 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
426 +
427 + $query_url = "https://{$host}/query";
428 + $query_vector = $this->mxchat_generate_optimized_query_vector();
429 +
430 + // Fetch more records to search through
431 + $query_data = array(
432 + 'includeMetadata' => true,
433 + 'includeValues' => false,
434 + 'topK' => 1000, // Fetch more for text search
435 + 'vector' => $query_vector
436 + );
437 +
438 + if (!empty($namespace)) {
439 + $query_data['namespace'] = $namespace;
440 + }
441 +
442 + $response = wp_remote_post($query_url, array(
443 + 'headers' => array(
444 + 'Api-Key' => $api_key,
445 + 'Content-Type' => 'application/json'
446 + ),
447 + 'body' => json_encode($query_data),
448 + 'timeout' => 20
449 + ));
450 +
451 + if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
452 + return array('data' => array(), 'total' => 0);
453 + }
454 +
455 + $body = wp_remote_retrieve_body($response);
456 + $data = json_decode($body, true);
457 +
458 + $records = array();
459 + $search_lower = strtolower($search_query);
460 +
461 + if (isset($data['matches'])) {
462 + foreach ($data['matches'] as $match) {
463 + $metadata = $match['metadata'] ?? array();
464 +
465 + // Filter by content type
466 + if (!empty($content_type)) {
467 + $record_type = $metadata['type'] ?? 'content';
468 + if ($record_type !== $content_type) {
469 + continue;
470 + }
471 + }
472 +
473 + // Text search filter
474 + $content = strtolower($metadata['text'] ?? '');
475 + $source_url = strtolower($metadata['source_url'] ?? '');
476 + if (strpos($content, $search_lower) === false && strpos($source_url, $search_lower) === false) {
477 + continue;
478 + }
479 +
480 + $created_at = $metadata['created_at'] ?? $metadata['last_updated'] ?? $metadata['timestamp'] ?? time();
481 + if (!is_numeric($created_at)) {
482 + $created_at = strtotime($created_at) ?: time();
483 + }
484 +
485 + $records[] = (object) array(
486 + 'id' => $match['id'] ?? '',
487 + 'article_content' => $metadata['text'] ?? '',
488 + 'source_url' => $metadata['source_url'] ?? '',
489 + 'role_restriction' => $metadata['role_restriction'] ?? 'public',
490 + 'type' => $metadata['type'] ?? 'content',
491 + 'bot_id' => $bot_id,
492 + 'created_at' => $created_at,
493 + 'data_source' => 'pinecone',
494 + 'chunk_index' => isset($metadata['chunk_index']) ? intval($metadata['chunk_index']) : null,
495 + 'total_chunks' => isset($metadata['total_chunks']) ? intval($metadata['total_chunks']) : null,
496 + 'is_chunked' => isset($metadata['is_chunked']) ? (bool) $metadata['is_chunked'] : false
497 + );
498 + }
499 + }
500 +
501 + // Sort by date for text search results
502 + usort($records, function($a, $b) {
503 + return $b->created_at - $a->created_at;
504 + });
505 +
506 + $total = count($records);
507 + $offset = ($page - 1) * $per_page;
508 + $paged_records = array_slice($records, $offset, $per_page);
509 +
510 + $this->mxchat_batch_fetch_role_restrictions($paged_records, $bot_id);
511 +
512 + return array(
513 + 'data' => $paged_records,
514 + 'total' => $total
515 + );
516 +}
517 +
518 +/**
519 + * List Pinecone records using the list endpoint for true pagination (no search)
520 + * This allows browsing through all 13K+ records page by page
521 + * ADDED 2.6.1
522 + */
523 +private function mxchat_list_pinecone_records($pinecone_options, $page = 1, $per_page = 20, $bot_id = 'default', $content_type = '') {
524 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
525 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
526 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
527 +
528 + // Pinecone's list endpoint returns vector IDs with pagination
529 + // We then fetch the metadata for those specific IDs
530 + // NOTE (plan 793b82): /vectors/list is a GET endpoint with query parameters.
531 + // A POST is answered 200-with-an-empty-body, which reads as "no vectors" —
532 + // this call used to POST and only ever "worked" because the empty result
533 + // tripped the query-based fallback below.
534 + $list_url = "https://{$host}/vectors/list";
535 +
536 + // Calculate pagination token from page number
537 + // Pinecone uses cursor-based pagination, so we need to handle this differently.
538 + // Plan dd6e10: when browsing unfiltered, one cursor step must be exactly one
539 + // page — the old per_page * 2 over-fetch was sliced back to per_page, so the
540 + // next cursor started 25 ids past what the visitor had seen. The over-fetch
541 + // only earns its keep when a content-type filter will discard some of the ids.
542 + $limit = !empty($content_type) ? $per_page * 2 : $per_page;
543 +
544 + $list_params = array(
545 + 'limit' => $limit
546 + );
547 +
548 + if (!empty($namespace)) {
549 + $list_params['namespace'] = $namespace;
550 + }
551 +
552 + // For pages beyond first, we need to use pagination_token
553 + // Store/retrieve pagination tokens in transients
554 + $pagination_key = 'mxchat_pinecone_page_' . md5($host . $namespace . $content_type);
555 +
556 + if ($page > 1) {
557 + $stored_tokens = get_transient($pagination_key);
558 + if ($stored_tokens && isset($stored_tokens[$page])) {
559 + $list_params['paginationToken'] = $stored_tokens[$page];
560 + }
561 + }
562 +
563 + $response = wp_remote_get($list_url . '?' . http_build_query($list_params), array(
564 + 'headers' => array(
565 + 'Api-Key' => $api_key,
566 + 'accept' => 'application/json'
567 + ),
568 + 'timeout' => 15
569 + ));
570 +
571 + if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
572 + // Genuine transport/API failure — fall back to the query-based approach,
573 + // but say so: a silent fallback is what masked the POST bug for a year.
574 + error_log('MxChat Pinecone: /vectors/list GET failed (' . (is_wp_error($response) ? $response->get_error_message() : wp_remote_retrieve_response_code($response)) . ') — falling back to query-based listing.');
575 + return $this->mxchat_query_based_list($pinecone_options, $page, $per_page, $bot_id, $content_type);
576 + }
577 +
578 + $body = wp_remote_retrieve_body($response);
579 + $data = json_decode($body, true);
580 +
581 + // Store pagination token for next page
582 + $has_next = !empty($data['pagination']['next']);
583 + if ($has_next) {
584 + $stored_tokens = get_transient($pagination_key) ?: array();
585 + $stored_tokens[$page + 1] = $data['pagination']['next'];
586 + set_transient($pagination_key, $stored_tokens, 300); // 5 minute cache
587 + }
588 +
589 + $vector_ids = array();
590 + if (isset($data['vectors'])) {
591 + foreach ($data['vectors'] as $vector) {
592 + $vector_ids[] = $vector['id'];
593 + }
594 + }
595 +
596 + // A 200 with no vector ids is a REAL answer now (the namespace is empty),
597 + // not the failure signature it was under POST — return the empty listing
598 + // rather than routing into the fallback and masking a broken primary.
599 + if (empty($vector_ids)) {
600 + return array('data' => array(), 'total' => 0, 'has_next' => false);
601 + }
602 +
603 + // Fetch metadata for these vector IDs
604 + $fetched = $this->mxchat_fetch_vectors_by_ids_for_list($pinecone_options, $vector_ids, $page, $per_page, $bot_id, $content_type);
605 +
606 + // null = the fetch itself failed in transport (distinct from "ids had no
607 + // metadata matches") — log and fall back so the screen still lists.
608 + if ($fetched === null) {
609 + error_log('MxChat Pinecone: /vectors/fetch GET failed for the listing — falling back to query-based listing.');
610 + return $this->mxchat_query_based_list($pinecone_options, $page, $per_page, $bot_id, $content_type);
611 + }
612 +
613 + $fetched['has_next'] = $has_next;
614 + return $fetched;
615 +}
616 +
617 +/**
618 + * Query-based listing fallback when list endpoint fails
619 + * ADDED 2.6.1
620 + */
621 +private function mxchat_query_based_list($pinecone_options, $page, $per_page, $bot_id, $content_type) {
622 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
623 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
624 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
625 +
626 + $query_url = "https://{$host}/query";
627 + $query_vector = $this->mxchat_generate_optimized_query_vector();
628 +
629 + // Fetch records - use higher limit to cover large databases
630 + // Pinecone query API supports up to 10,000 topK
631 + // We fetch more than needed to get accurate total count and enable pagination
632 + $fetch_limit = 5000;
633 +
634 + $query_data = array(
635 + 'includeMetadata' => true,
636 + 'includeValues' => false,
637 + 'topK' => $fetch_limit,
638 + 'vector' => $query_vector
639 + );
640 +
641 + if (!empty($namespace)) {
642 + $query_data['namespace'] = $namespace;
643 + }
644 +
645 + // Add content type filter if specified
646 + if (!empty($content_type)) {
647 + $query_data['filter'] = array(
648 + 'type' => array('$eq' => $content_type)
649 + );
650 + }
651 +
652 + $response = wp_remote_post($query_url, array(
653 + 'headers' => array(
654 + 'Api-Key' => $api_key,
655 + 'Content-Type' => 'application/json'
656 + ),
657 + 'body' => json_encode($query_data),
658 + 'timeout' => 30
659 + ));
660 +
661 + if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
662 + return array('data' => array(), 'total' => 0);
663 + }
664 +
665 + $body = wp_remote_retrieve_body($response);
666 + $data = json_decode($body, true);
667 +
668 + $records = array();
669 + if (isset($data['matches'])) {
670 + foreach ($data['matches'] as $match) {
671 + $metadata = $match['metadata'] ?? array();
672 +
673 + $created_at = $metadata['created_at'] ?? $metadata['last_updated'] ?? $metadata['timestamp'] ?? time();
674 + if (!is_numeric($created_at)) {
675 + $created_at = strtotime($created_at) ?: time();
676 + }
677 +
678 + $records[] = (object) array(
679 + 'id' => $match['id'] ?? '',
680 + 'article_content' => $metadata['text'] ?? '',
681 + 'source_url' => $metadata['source_url'] ?? '',
682 + 'role_restriction' => $metadata['role_restriction'] ?? 'public',
683 + 'type' => $metadata['type'] ?? 'content',
684 + 'bot_id' => $bot_id,
685 + 'created_at' => $created_at,
686 + 'data_source' => 'pinecone',
687 + 'chunk_index' => isset($metadata['chunk_index']) ? intval($metadata['chunk_index']) : null,
688 + 'total_chunks' => isset($metadata['total_chunks']) ? intval($metadata['total_chunks']) : null,
689 + 'is_chunked' => isset($metadata['is_chunked']) ? (bool) $metadata['is_chunked'] : false
690 + );
691 + }
692 + }
693 +
694 + // Sort by created_at (newest first)
695 + usort($records, function($a, $b) {
696 + return $b->created_at - $a->created_at;
697 + });
698 +
699 + $total = count($records);
700 + $offset = ($page - 1) * $per_page;
701 + $paged_records = array_slice($records, $offset, $per_page);
702 +
703 + $this->mxchat_batch_fetch_role_restrictions($paged_records, $bot_id);
704 +
705 + return array(
706 + 'data' => $paged_records,
707 + 'total' => $total,
708 + 'has_next' => ($offset + $per_page) < $total // offset-paged, but the cursor UI still asks (plan dd6e10)
709 + );
710 +}
711 +
712 +/**
713 + * Fetch specific vectors by their IDs and format for display
714 + * ADDED 2.6.1
715 + */
716 +private function mxchat_fetch_vectors_by_ids_for_list($pinecone_options, $vector_ids, $page, $per_page, $bot_id, $content_type) {
717 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
718 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
719 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
720 +
721 + // NOTE (plan 793b82): /vectors/fetch is a GET endpoint, and Pinecone expects
722 + // the ids repeated (ids=a&ids=b) — http_build_query would emit ids[0]=a.
723 + // A POST here is answered 200-with-an-empty-body, which reads as "no vectors".
724 + $fetch_query = array();
725 + foreach ($vector_ids as $fetch_vid) {
726 + $fetch_query[] = 'ids=' . rawurlencode($fetch_vid);
727 + }
728 + if (!empty($namespace)) {
729 + $fetch_query[] = 'namespace=' . rawurlencode($namespace);
730 + }
731 +
732 + $response = wp_remote_get("https://{$host}/vectors/fetch?" . implode('&', $fetch_query), array(
733 + 'headers' => array(
734 + 'Api-Key' => $api_key,
735 + 'accept' => 'application/json'
736 + ),
737 + 'timeout' => 15
738 + ));
739 +
740 + // Transport/API failure is distinct from "nothing matched": return null so
741 + // the caller can tell the difference (plan 793b82's empty-vs-failed rule).
742 + if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
743 + return null;
744 + }
745 +
746 + $body = wp_remote_retrieve_body($response);
747 + $data = json_decode($body, true);
748 +
749 + $records = array();
750 + if (isset($data['vectors'])) {
751 + foreach ($data['vectors'] as $vector_id => $vector_data) {
752 + $metadata = $vector_data['metadata'] ?? array();
753 +
754 + // Filter by content type if specified
755 + if (!empty($content_type)) {
756 + $record_type = $metadata['type'] ?? 'content';
757 + if ($record_type !== $content_type) {
758 + continue;
759 + }
760 + }
761 +
762 + $created_at = $metadata['created_at'] ?? $metadata['last_updated'] ?? $metadata['timestamp'] ?? time();
763 + if (!is_numeric($created_at)) {
764 + $created_at = strtotime($created_at) ?: time();
765 + }
766 +
767 + $records[] = (object) array(
768 + 'id' => $vector_id,
769 + 'article_content' => $metadata['text'] ?? '',
770 + 'source_url' => $metadata['source_url'] ?? '',
771 + 'role_restriction' => $metadata['role_restriction'] ?? 'public',
772 + 'type' => $metadata['type'] ?? 'content',
773 + 'bot_id' => $bot_id,
774 + 'created_at' => $created_at,
775 + 'data_source' => 'pinecone',
776 + 'chunk_index' => isset($metadata['chunk_index']) ? intval($metadata['chunk_index']) : null,
777 + 'total_chunks' => isset($metadata['total_chunks']) ? intval($metadata['total_chunks']) : null,
778 + 'is_chunked' => isset($metadata['is_chunked']) ? (bool) $metadata['is_chunked'] : false
779 + );
780 + }
781 + }
782 +
783 + // Sort by date
784 + usort($records, function($a, $b) {
785 + return $b->created_at - $a->created_at;
786 + });
787 +
788 + $total = count($records);
789 + $paged_records = array_slice($records, 0, $per_page);
790 +
791 + $this->mxchat_batch_fetch_role_restrictions($paged_records, $bot_id);
792 +
793 + return array(
794 + 'data' => $paged_records,
795 + 'total' => $total
796 + );
797 +}
798 +
799 +/**
800 + * Generate a single optimized query vector for fetching records
801 + * Uses a center-weighted approach for best coverage
802 + */
803 +private function mxchat_generate_optimized_query_vector() {
804 + $dimensions = $this->mxchat_get_embedding_dimensions();
805 + $vector = array();
806 +
807 + // Create a normalized center-weighted vector
808 + $center = $dimensions / 2;
809 + for ($i = 0; $i < $dimensions; $i++) {
810 + $distance = abs($i - $center) / $center;
811 + $vector[] = (1 - $distance) * 0.5;
812 + }
813 +
814 + // Normalize to unit length
815 + $magnitude = sqrt(array_sum(array_map(function($x) { return $x * $x; }, $vector)));
816 + if ($magnitude > 0) {
817 + $vector = array_map(function($x) use ($magnitude) { return $x / $magnitude; }, $vector);
818 + }
819 +
820 + return $vector;
821 +}
822 +
823 +/**
824 + * Batch fetch role restrictions for a set of records
825 + * Uses a single query instead of N queries
826 + * ADDED 2.6.1: Prevents N+1 query problem
827 + */
828 +private function mxchat_batch_fetch_role_restrictions(&$records, $bot_id = 'default') {
829 + if (empty($records)) {
830 + return;
831 + }
832 +
833 + global $wpdb;
834 + $roles_table = $wpdb->prefix . 'mxchat_pinecone_roles';
835 +
836 + // Check if table exists
837 + $table_exists = $wpdb->get_var("SHOW TABLES LIKE '{$roles_table}'");
838 + if (!$table_exists) {
839 + return;
840 + }
841 +
842 + // Get all vector IDs that need role lookup
843 + $vector_ids = array();
844 + foreach ($records as $record) {
845 + if (empty($record->role_restriction) || $record->role_restriction === 'public') {
846 + $vector_ids[] = $record->id;
847 + }
848 + }
849 +
850 + if (empty($vector_ids)) {
851 + return;
852 + }
853 +
854 + // Check if bot_id column exists
855 + $columns = $wpdb->get_col("SHOW COLUMNS FROM {$roles_table}");
856 + $has_bot_id = in_array('bot_id', $columns);
857 +
858 + // Build single query with IN clause
859 + $placeholders = implode(',', array_fill(0, count($vector_ids), '%s'));
860 +
861 + if ($has_bot_id) {
862 + $query = $wpdb->prepare(
863 + "SELECT vector_id, role_restriction FROM {$roles_table} WHERE vector_id IN ({$placeholders}) AND bot_id = %s",
864 + array_merge($vector_ids, array($bot_id))
865 + );
866 + } else {
867 + $query = $wpdb->prepare(
868 + "SELECT vector_id, role_restriction FROM {$roles_table} WHERE vector_id IN ({$placeholders})",
869 + $vector_ids
870 + );
871 + }
872 +
873 + $results = $wpdb->get_results($query, OBJECT_K);
874 +
875 + // Apply role restrictions to records
876 + foreach ($records as &$record) {
877 + if (isset($results[$record->id])) {
878 + $record->role_restriction = $results[$record->id]->role_restriction;
879 + }
880 + }
881 +}
882 +
883 +/**
884 + * Safe version of get_recent_entries with memory limits
885 + * ADDED 2.6.1: Prevents memory exhaustion
886 + */
887 +private function mxchat_get_recent_entries_safe($pinecone_options, $bot_id = 'default', $limit = 500) {
888 + global $wpdb;
889 +
890 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
891 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
892 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
893 +
894 + if (empty($api_key) || empty($host)) {
895 + return array();
896 + }
897 +
898 + try {
899 + $all_records = array();
900 + $seen_ids = array();
901 + $query_url = "https://{$host}/query";
902 +
903 + // Use only 2 query vectors instead of 5 for better performance
904 + $fixed_vectors = array_slice($this->mxchat_generate_fixed_query_vectors(), 0, 2);
905 +
906 + foreach ($fixed_vectors as $query_vector) {
907 + // Limit topK to prevent memory issues
908 + $topK = min(500, $limit);
909 +
910 + $query_data = array(
911 + 'includeMetadata' => true,
912 + 'includeValues' => false,
913 + 'topK' => $topK,
914 + 'vector' => $query_vector
915 + );
916 +
917 + if (!empty($namespace)) {
918 + $query_data['namespace'] = $namespace;
919 + }
920 +
921 + $response = wp_remote_post($query_url, array(
922 + 'headers' => array(
923 + 'Api-Key' => $api_key,
924 + 'Content-Type' => 'application/json'
925 + ),
926 + 'body' => json_encode($query_data),
927 + 'timeout' => 15
928 + ));
929 +
930 + if (!is_wp_error($response) && wp_remote_retrieve_response_code($response) === 200) {
931 + $body = wp_remote_retrieve_body($response);
932 + $data = json_decode($body, true);
933 +
934 + if (isset($data['matches'])) {
935 + foreach ($data['matches'] as $match) {
936 + $match_id = $match['id'] ?? '';
937 + if (!empty($match_id) && !isset($seen_ids[$match_id])) {
938 + $metadata = $match['metadata'] ?? array();
939 +
940 + $created_at = $metadata['created_at'] ?? $metadata['last_updated'] ?? $metadata['timestamp'] ?? time();
941 + if (!is_numeric($created_at)) {
942 + $created_at = strtotime($created_at) ?: time();
943 + }
944 +
945 + $all_records[] = (object) array(
946 + 'id' => $match_id,
947 + 'article_content' => $metadata['text'] ?? '',
948 + 'source_url' => $metadata['source_url'] ?? '',
949 + 'role_restriction' => $metadata['role_restriction'] ?? 'public',
950 + 'type' => $metadata['type'] ?? 'content',
951 + 'bot_id' => $bot_id,
952 + 'created_at' => $created_at,
953 + 'data_source' => 'pinecone',
954 + 'chunk_index' => isset($metadata['chunk_index']) ? intval($metadata['chunk_index']) : null,
955 + 'total_chunks' => isset($metadata['total_chunks']) ? intval($metadata['total_chunks']) : null,
956 + 'is_chunked' => isset($metadata['is_chunked']) ? (bool) $metadata['is_chunked'] : false
957 + );
958 +
959 + $seen_ids[$match_id] = true;
960 +
961 + // Stop if we've reached our limit
962 + if (count($all_records) >= $limit) {
963 + break 2;
964 + }
965 + }
966 + }
967 + }
968 + }
969 +
970 + // Minimal delay between requests
971 + usleep(50000); // 0.05 second delay
972 + }
973 +
974 + // Sort by created_at (newest first) and apply limit
975 + usort($all_records, function($a, $b) {
976 + return $b->created_at - $a->created_at;
977 + });
978 +
979 + $limited_records = array_slice($all_records, 0, $limit);
980 +
981 + // Batch fetch role restrictions
982 + $this->mxchat_batch_fetch_role_restrictions($limited_records, $bot_id);
983 +
984 + return $limited_records;
985 +
986 + } catch (Exception $e) {
987 + //error_log('MxChat safe fetch exception: ' . $e->getMessage());
988 + MxChat_Admin::mxchat_log_debug('pinecone_error', 'Pinecone safe fetch error: ' . $e->getMessage());
989 + return array();
990 + }
991 +}
992 +/**
993 + * Get embedding dimensions based on the selected model
994 + * ADD THIS NEW FUNCTION
995 + */
996 + private function mxchat_get_embedding_dimensions() {
997 + // One answer for every caller (plan 418afd): the size of the model the
998 + // site really embeds with, Custom Provider included. If a custom
999 + // model cannot be asked, the dropdown's number is the old behaviour
1000 + // and still better than no listing at all.
1001 + $options = get_option('mxchat_options', array());
1002 + $dimension = MxChat_Utils::expected_embedding_dimension($options);
1003 + if (!is_wp_error($dimension) && (int) $dimension > 0) {
1004 + return (int) $dimension;
1005 + }
1006 + return MxChat_Utils::standard_embedding_dimension($options);
1007 + }
1008 +
1009 + /**
1010 + * Generate random unit vector with correct dimensions
1011 + * ADD THIS NEW FUNCTION
1012 + */
1013 + private function mxchat_generate_random_vector() {
1014 + $dimensions = $this->mxchat_get_embedding_dimensions();
1015 +
1016 + $random_vector = array();
1017 + for ($i = 0; $i < $dimensions; $i++) {
1018 + $random_vector[] = (rand(-1000, 1000) / 1000.0);
1019 + }
1020 +
1021 + // Normalize the vector to unit length
1022 + $magnitude = sqrt(array_sum(array_map(function($x) { return $x * $x; }, $random_vector)));
1023 + if ($magnitude > 0) {
1024 + $random_vector = array_map(function($x) use ($magnitude) { return $x / $magnitude; }, $random_vector);
1025 + }
1026 +
1027 + return $random_vector;
1028 + }
1029 +
1030 +
1031 +/**
1032 + * Get recent entries from Pinecone
1033 + * UPDATED 2.6.1: Now uses safe version with memory limits to prevent crashes
1034 + * @deprecated Use mxchat_get_recent_entries_safe() instead for new code
1035 + */
1036 +private function mxchat_get_recent_1k_entries($pinecone_options, $bot_id = 'default') {
1037 + // Delegate to the safe version with a reasonable limit
1038 + // This prevents crashes with large datasets (13K+ products)
1039 + return $this->mxchat_get_recent_entries_safe($pinecone_options, $bot_id, 500);
1040 +}
1041 +/**
1042 + * Generate fixed query vectors for consistent results
1043 + */
1044 +private function mxchat_generate_fixed_query_vectors() {
1045 + $dimensions = $this->mxchat_get_embedding_dimensions();
1046 + $vectors = array();
1047 +
1048 + // Create 5 fixed vectors with different patterns for better coverage
1049 + $patterns = array(
1050 + 'zeros_with_ones' => 0.1, // Mostly zeros with some 1s
1051 + 'ascending' => 0.2, // Ascending pattern
1052 + 'descending' => 0.3, // Descending pattern
1053 + 'alternating' => 0.4, // Alternating positive/negative
1054 + 'center_weighted' => 0.5 // Higher values in center
1055 + );
1056 +
1057 + foreach ($patterns as $pattern_name => $seed) {
1058 + $vector = array();
1059 +
1060 + for ($i = 0; $i < $dimensions; $i++) {
1061 + switch ($pattern_name) {
1062 + case 'zeros_with_ones':
1063 + $vector[] = ($i % 10 === 0) ? 1.0 : 0.0;
1064 + break;
1065 + case 'ascending':
1066 + $vector[] = ($i / $dimensions) * 2 - 1; // Range -1 to 1
1067 + break;
1068 + case 'descending':
1069 + $vector[] = (($dimensions - $i) / $dimensions) * 2 - 1;
1070 + break;
1071 + case 'alternating':
1072 + $vector[] = ($i % 2 === 0) ? $seed : -$seed;
1073 + break;
1074 + case 'center_weighted':
1075 + $center = $dimensions / 2;
1076 + $distance = abs($i - $center) / $center;
1077 + $vector[] = (1 - $distance) * $seed;
1078 + break;
1079 + }
1080 + }
1081 +
1082 + // Normalize the vector to unit length
1083 + $magnitude = sqrt(array_sum(array_map(function($x) { return $x * $x; }, $vector)));
1084 + if ($magnitude > 0) {
1085 + $vector = array_map(function($x) use ($magnitude) { return $x / $magnitude; }, $vector);
1086 + }
1087 +
1088 + $vectors[] = $vector;
1089 + }
1090 +
1091 + return $vectors;
1092 +}
1093 +
1094 +
1095 +/**
1096 + * Scan Pinecone for processed content
1097 + * UPDATED 2.6.2: Uses direct ID lookup via fetch API instead of random vector scanning
1098 + * This removes the 10K record limit and scales to any database size
1099 + *
1100 + * @param array $pinecone_options Pinecone configuration options
1101 + * @param array $post_ids Optional array of specific post IDs to check (if empty, checks all published posts)
1102 + * @return array Processed data keyed by post ID
1103 + */
1104 +public function mxchat_scan_pinecone_for_processed_content($pinecone_options, $post_ids = array()) {
1105 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
1106 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
1107 +
1108 + if (empty($api_key) || empty($host)) {
1109 + return array();
1110 + }
1111 +
1112 + try {
1113 + // If no specific post IDs provided, get all published posts
1114 + if (empty($post_ids)) {
1115 + $posts = get_posts(array(
1116 + 'post_type' => 'any',
1117 + 'post_status' => 'publish',
1118 + 'posts_per_page' => -1,
1119 + 'fields' => 'ids',
1120 + 'no_found_rows' => true,
1121 + 'update_post_meta_cache' => false,
1122 + 'update_post_term_cache' => false,
1123 + ));
1124 + $post_ids = $posts;
1125 + }
1126 +
1127 + if (empty($post_ids)) {
1128 + return array();
1129 + }
1130 +
1131 + // Build a map of vector_id => post data for lookup
1132 + $vector_id_map = array();
1133 + foreach ($post_ids as $post_id) {
1134 + $permalink = get_permalink($post_id);
1135 + if ($permalink) {
1136 + $vector_id = md5($permalink);
1137 + $vector_id_map[$vector_id] = array(
1138 + 'post_id' => $post_id,
1139 + 'url' => $permalink
1140 + );
1141 + }
1142 + }
1143 +
1144 + if (empty($vector_id_map)) {
1145 + return array();
1146 + }
1147 +
1148 + // Batch check Pinecone using fetch API.
1149 + // NOTE (plan 793b82): /vectors/fetch is a GET endpoint with the ids
1150 + // repeated in the query string (ids=a&ids=b); the old POST here was
1151 + // answered 200-with-an-empty-body, so this scan saw NOTHING as indexed
1152 + // and callers re-embedded content Pinecone already had. Chunk size 100:
1153 + // measured on a live serverless index, ~9KB of URL is accepted and
1154 + // ~18KB draws HTTP 414, so 100 32-char ids (~4KB) leaves real margin.
1155 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
1156 + $all_vector_ids = array_keys($vector_id_map);
1157 + $chunks = array_chunk($all_vector_ids, 100);
1158 + $processed_data = array();
1159 +
1160 + // Document index (plan 362c31): one documents/fetch instead of the GET loop.
1161 + if (class_exists('MxChat_Pinecone_Documents') && MxChat_Pinecone_Documents::is_document_options($pinecone_options)) {
1162 + $chunks = array();
1163 + $doc_vectors = MxChat_Pinecone_Documents::fetch($all_vector_ids, MxChat_Pinecone_Documents::cfg_from_options($pinecone_options), array('source_url', 'created_at'));
1164 + foreach ($doc_vectors as $vector_id => $vector_data) {
1165 + if (isset($vector_id_map[$vector_id])) {
1166 + $processed_data[$vector_id_map[$vector_id]['post_id']] = MxChat_Pinecone_Documents::processed_row($vector_id, $vector_id_map[$vector_id]['url'], $vector_data['metadata'] ?? array());
1167 + }
1168 + }
1169 + }
1170 +
1171 + foreach ($chunks as $chunk) {
1172 + $fetch_query = array();
1173 + foreach ($chunk as $fetch_vid) {
1174 + $fetch_query[] = 'ids=' . rawurlencode($fetch_vid);
1175 + }
1176 + if (!empty($namespace)) {
1177 + $fetch_query[] = 'namespace=' . rawurlencode($namespace);
1178 + }
1179 +
1180 + $response = wp_remote_get("https://{$host}/vectors/fetch?" . implode('&', $fetch_query), array(
1181 + 'headers' => array(
1182 + 'Api-Key' => $api_key,
1183 + 'accept' => 'application/json'
1184 + ),
1185 + 'timeout' => 30
1186 + ));
1187 +
1188 + if (is_wp_error($response)) {
1189 + error_log('MxChat Pinecone: processed-content scan /vectors/fetch GET failed: ' . $response->get_error_message());
1190 + continue;
1191 + }
1192 +
1193 + $response_code = wp_remote_retrieve_response_code($response);
1194 + if ($response_code !== 200) {
1195 + error_log('MxChat Pinecone: processed-content scan /vectors/fetch GET returned HTTP ' . $response_code);
1196 + continue;
1197 + }
1198 +
1199 + $body = wp_remote_retrieve_body($response);
1200 + $data = json_decode($body, true);
1201 +
1202 + // Process returned vectors
1203 + if (isset($data['vectors']) && is_array($data['vectors'])) {
1204 + foreach ($data['vectors'] as $vector_id => $vector_data) {
1205 + if (isset($vector_id_map[$vector_id])) {
1206 + $post_info = $vector_id_map[$vector_id];
1207 + $post_id = $post_info['post_id'];
1208 + $metadata = $vector_data['metadata'] ?? array();
1209 +
1210 + $created_at = $metadata['created_at'] ?? '';
1211 + $processed_date = 'Recently';
1212 + $timestamp = current_time('timestamp');
1213 +
1214 + if (!empty($created_at)) {
1215 + $ts = is_numeric($created_at) ? $created_at : strtotime($created_at);
1216 + if ($ts) {
1217 + $timestamp = $ts;
1218 + $processed_date = human_time_diff($ts, current_time('timestamp')) . ' ago';
1219 + }
1220 + }
1221 +
1222 + $processed_data[$post_id] = array(
1223 + 'db_id' => $vector_id,
1224 + 'processed_date' => $processed_date,
1225 + 'url' => $post_info['url'],
1226 + 'source' => 'pinecone',
1227 + 'timestamp' => $timestamp
1228 + );
1229 + }
1230 + }
1231 + }
1232 + }
1233 +
1234 + return $processed_data;
1235 +
1236 + } catch (Exception $e) {
1237 + return array();
1238 + }
1239 +}
1240 +
1241 +/**
1242 + * Get total count from Pinecone stats API
1243 + * UPDATED: Removed cache fallback reference
1244 + */
1245 +private function mxchat_get_pinecone_total_count($pinecone_options, $bot_id = 'default') {
1246 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
1247 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
1248 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
1249 +
1250 + if (empty($api_key) || empty($host)) {
1251 + return 0;
1252 + }
1253 +
1254 + // Document index (plan 362c31): same stats call, version-headed, namespace mapped.
1255 + if (class_exists('MxChat_Pinecone_Documents') && MxChat_Pinecone_Documents::is_document_options($pinecone_options)) {
1256 + return MxChat_Pinecone_Documents::count(MxChat_Pinecone_Documents::cfg_from_options($pinecone_options));
1257 + }
1258 +
1259 + try {
1260 + $stats_url = "https://{$host}/describe_index_stats";
1261 +
1262 + // describe_index_stats doesn't need a body, just the POST request
1263 + $response = wp_remote_post($stats_url, array(
1264 + 'headers' => array(
1265 + 'Api-Key' => $api_key,
1266 + 'Content-Type' => 'application/json'
1267 + ),
1268 + 'body' => '{}',
1269 + 'timeout' => 15
1270 + ));
1271 +
1272 + if (!is_wp_error($response) && wp_remote_retrieve_response_code($response) === 200) {
1273 + $body = wp_remote_retrieve_body($response);
1274 + $stats_data = json_decode($body, true);
1275 +
1276 + // If namespace is specified, get count from that specific namespace
1277 + // Pinecone stats response format: { namespaces: { "ns": { vectorCount: N } }, totalVectorCount: N }
1278 + if (!empty($namespace)) {
1279 + // Plan dd6e10: a configured namespace (including a Multi-Bot
1280 + // per-bot namespace, which arrives through the same option key)
1281 + // is counted on its own. Pinecone omits empty namespaces from
1282 + // the stats, so "not listed" means 0 here — falling through to
1283 + // totalVectorCount would show a bot the whole index's number.
1284 + return isset($stats_data['namespaces'][$namespace]['vectorCount'])
1285 + ? intval($stats_data['namespaces'][$namespace]['vectorCount'])
1286 + : 0;
1287 + }
1288 +
1289 + // If no namespace specified or namespace not found in response, use total
1290 + $total_count = $stats_data['totalVectorCount'] ?? 0;
1291 + if ($total_count > 0) {
1292 + //error_log('DEBUG: Got total count from stats API: ' . $total_count);
1293 + return intval($total_count);
1294 + }
1295 + }
1296 +
1297 + // If stats API fails, return 0 instead of using cache
1298 + return 0;
1299 +
1300 + } catch (Exception $e) {
1301 + //error_log('DEBUG: Exception getting total count: ' . $e->getMessage());
1302 + return 0;
1303 + }
1304 +}
1305 +
1306 +/**
1307 + * Get bot-specific Pinecone configuration for database operations
1308 + */
1309 +public function mxchat_get_bot_pinecone_options($bot_id = 'default') {
1310 + //error_log('DEBUG: Getting Pinecone options for bot: ' . $bot_id);
1311 +
1312 + // If default bot or multi-bot add-on not active, use default Pinecone config
1313 + if ($bot_id === 'default' || !class_exists('MxChat_Multi_Bot_Manager')) {
1314 + $addon_options = get_option('mxchat_pinecone_addon_options', array());
1315 + //error_log('DEBUG: Using default Pinecone options');
1316 + return $addon_options;
1317 + }
1318 +
1319 + // Get bot-specific configuration using the filter
1320 + $bot_config = apply_filters('mxchat_get_bot_pinecone_config', array(), $bot_id);
1321 +
1322 + //error_log('DEBUG: Bot config from filter: ' . print_r($bot_config, true));
1323 +
1324 + // Check if we got valid bot-specific config
1325 + if (!empty($bot_config) && isset($bot_config['use_pinecone']) && $bot_config['use_pinecone']) {
1326 + // Convert bot config to the format expected by fetch functions
1327 + $pinecone_options = array(
1328 + 'mxchat_use_pinecone' => '1',
1329 + 'mxchat_pinecone_api_key' => $bot_config['api_key'] ?? '',
1330 + 'mxchat_pinecone_host' => $bot_config['host'] ?? '',
1331 + 'mxchat_pinecone_namespace' => $bot_config['namespace'] ?? '',
1332 + 'mxchat_pinecone_environment' => '',
1333 + 'mxchat_pinecone_index' => '',
1334 + // Plan 362c31: a bot's own index may be a document index (the Multi-Bot
1335 + // add-on supplies 'index_type' when it learns the choice; default vector).
1336 + 'mxchat_pinecone_index_type' => (($bot_config['index_type'] ?? 'vector') === 'document') ? 'document' : 'vector'
1337 + );
1338 +
1339 + //error_log('DEBUG: Returning bot-specific Pinecone options for bot: ' . $bot_id);
1340 + return $pinecone_options;
1341 + }
1342 +
1343 + // Fallback to default options if bot-specific config is invalid
1344 + //error_log('DEBUG: Bot-specific config invalid, falling back to default');
1345 + return get_option('mxchat_pinecone_addon_options', array());
1346 +}
1347 +
1348 +/**
1349 + * Get bot-specific Pinecone configuration
1350 + * Used in the knowledge retrieval functions
1351 + */
1352 +private function get_bot_pinecone_config($bot_id = 'default') {
1353 + //error_log("MXCHAT DEBUG: get_bot_pinecone_config called for bot: " . $bot_id);
1354 +
1355 + // If default bot or multi-bot add-on not active, use default Pinecone config
1356 + if ($bot_id === 'default' || !class_exists('MxChat_Multi_Bot_Manager')) {
1357 + //error_log("MXCHAT DEBUG: Using default Pinecone config (no multi-bot or bot is 'default')");
1358 + $addon_options = get_option('mxchat_pinecone_addon_options', array());
1359 + $config = array(
1360 + 'use_pinecone' => (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1'),
1361 + 'api_key' => $addon_options['mxchat_pinecone_api_key'] ?? '',
1362 + 'host' => $addon_options['mxchat_pinecone_host'] ?? '',
1363 + 'namespace' => $addon_options['mxchat_pinecone_namespace'] ?? ''
1364 + );
1365 + //error_log("MXCHAT DEBUG: Default config - use_pinecone: " . ($config['use_pinecone'] ? 'true' : 'false'));
1366 + return $config;
1367 + }
1368 +
1369 + //error_log("MXCHAT DEBUG: Calling filter 'mxchat_get_bot_pinecone_config' for bot: " . $bot_id);
1370 +
1371 + // Hook for multi-bot add-on to provide bot-specific Pinecone config
1372 + $bot_pinecone_config = apply_filters('mxchat_get_bot_pinecone_config', array(), $bot_id);
1373 +
1374 + if (!empty($bot_pinecone_config)) {
1375 + //error_log("MXCHAT DEBUG: Got bot-specific config from filter");
1376 + //error_log(" - use_pinecone: " . (isset($bot_pinecone_config['use_pinecone']) ? ($bot_pinecone_config['use_pinecone'] ? 'true' : 'false') : 'not set'));
1377 + //error_log(" - host: " . ($bot_pinecone_config['host'] ?? 'not set'));
1378 + //error_log(" - namespace: " . ($bot_pinecone_config['namespace'] ?? 'not set'));
1379 + } else {
1380 + //error_log("MXCHAT DEBUG: Filter returned empty config!");
1381 + }
1382 +
1383 + return is_array($bot_pinecone_config) ? $bot_pinecone_config : array();
1384 +}
1385 +
1386 +
1387 +/**
1388 + * Fetches vectors from Pinecone using provided IDs (for content selection feature)
1389 + */
1390 +public function fetch_pinecone_vectors_by_ids($pinecone_options, $vector_ids) {
1391 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
1392 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
1393 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
1394 +
1395 + if (empty($api_key) || empty($host) || empty($vector_ids)) {
1396 + return array();
1397 + }
1398 +
1399 + try {
1400 + // NOTE (plan 793b82): /vectors/fetch is a GET endpoint with the ids
1401 + // repeated in the query string; the old POST here was answered
1402 + // 200-with-an-empty-body. Chunked at 100 ids to stay well under the
1403 + // measured HTTP 414 URL-length boundary.
1404 + $vectors = array();
1405 + // Document index (plan 362c31): documents/fetch instead of the GET loop (same id => vector shape).
1406 + if (class_exists('MxChat_Pinecone_Documents') && MxChat_Pinecone_Documents::is_document_options($pinecone_options)) {
1407 + $vectors = MxChat_Pinecone_Documents::fetch(array_values($vector_ids), MxChat_Pinecone_Documents::cfg_from_options($pinecone_options), array('source_url', 'created_at'));
1408 + } else
1409 + foreach (array_chunk(array_values($vector_ids), 100) as $chunk) {
1410 + $fetch_query = array();
1411 + foreach ($chunk as $fetch_vid) {
1412 + $fetch_query[] = 'ids=' . rawurlencode($fetch_vid);
1413 + }
1414 + if (!empty($namespace)) {
1415 + $fetch_query[] = 'namespace=' . rawurlencode($namespace);
1416 + }
1417 +
1418 + $response = wp_remote_get("https://{$host}/vectors/fetch?" . implode('&', $fetch_query), array(
1419 + 'headers' => array(
1420 + 'Api-Key' => $api_key,
1421 + 'accept' => 'application/json'
1422 + ),
1423 + 'timeout' => 30
1424 + ));
1425 +
1426 + if (is_wp_error($response)) {
1427 + error_log('MxChat Pinecone: fetch_pinecone_vectors_by_ids GET failed: ' . $response->get_error_message());
1428 + continue;
1429 + }
1430 +
1431 + if (wp_remote_retrieve_response_code($response) !== 200) {
1432 + error_log('MxChat Pinecone: fetch_pinecone_vectors_by_ids GET returned HTTP ' . wp_remote_retrieve_response_code($response));
1433 + continue;
1434 + }
1435 +
1436 + $data = json_decode(wp_remote_retrieve_body($response), true);
1437 + if (isset($data['vectors']) && is_array($data['vectors'])) {
1438 + $vectors += $data['vectors'];
1439 + }
1440 + }
1441 +
1442 + if (empty($vectors)) {
1443 + return array();
1444 + }
1445 +
1446 + $processed_data = array();
1447 +
1448 + foreach ($vectors as $vector_id => $vector_data) {
1449 + $metadata = $vector_data['metadata'] ?? array();
1450 + $source_url = $metadata['source_url'] ?? '';
1451 +
1452 + if (!empty($source_url)) {
1453 + $post_id = url_to_postid($source_url);
1454 + if ($post_id) {
1455 + $created_at = $metadata['created_at'] ?? '';
1456 + $processed_date = 'Recently'; // Default
1457 +
1458 + if (!empty($created_at)) {
1459 + $timestamp = is_numeric($created_at) ? $created_at : strtotime($created_at);
1460 + if ($timestamp) {
1461 + $processed_date = human_time_diff($timestamp, current_time('timestamp')) . ' ago';
1462 + }
1463 + }
1464 +
1465 + $processed_data[$post_id] = array(
1466 + 'db_id' => $vector_id,
1467 + 'processed_date' => $processed_date,
1468 + 'url' => $source_url,
1469 + 'source' => 'pinecone',
1470 + 'timestamp' => $timestamp ?? current_time('timestamp')
1471 + );
1472 + }
1473 + }
1474 + }
1475 +
1476 + return $processed_data;
1477 +
1478 + } catch (Exception $e) {
1479 + return array();
1480 + }
1481 +}
1482 + // ========================================
1483 + // PINECONE DELETE OPERATIONS
1484 + // ========================================
1485 +
1486 +/**
1487 + * Delete all vectors from Pinecone
1488 + * Loops until all vectors are deleted (handles large databases)
1489 + */
1490 +public function mxchat_delete_all_from_pinecone($pinecone_options, $content_type_filter = '') {
1491 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
1492 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
1493 + $namespace = $pinecone_options['mxchat_pinecone_namespace'] ?? '';
1494 +
1495 + if (empty($api_key) || empty($host)) {
1496 + return array(
1497 + 'success' => false,
1498 + 'message' => 'Missing Pinecone API credentials'
1499 + );
1500 + }
1501 +
1502 + // Document index (plan 362c31): one delete_all (or one filtered delete) call.
1503 + if (class_exists('MxChat_Pinecone_Documents') && MxChat_Pinecone_Documents::is_document_options($pinecone_options)) {
1504 + $doc_filter = !empty($content_type_filter) ? array('type' => array('$eq' => (string) $content_type_filter)) : null;
1505 + $doc_result = MxChat_Pinecone_Documents::delete_all(MxChat_Pinecone_Documents::cfg_from_options($pinecone_options), $doc_filter);
1506 + if (is_wp_error($doc_result)) {
1507 + return array('success' => false, 'message' => $doc_result->get_error_message());
1508 + }
1509 + return array('success' => true, 'message' => $doc_filter ? 'Deleted all matching documents from the Pinecone document index' : 'Deleted all documents from the Pinecone document index');
1510 + }
1511 +
1512 + try {
1513 + $total_deleted = 0;
1514 + $failed_batches = 0;
1515 + $max_iterations = 100; // Safety limit to prevent infinite loops
1516 + $iteration = 0;
1517 +
1518 + // Loop until no more vectors are found
1519 + do {
1520 + $iteration++;
1521 +
1522 + // Get a batch of vector IDs from Pinecone
1523 + $records = $this->mxchat_get_recent_1k_entries($pinecone_options);
1524 + $vector_ids = array();
1525 +
1526 + foreach ($records as $record) {
1527 + if (!empty($record->id)) {
1528 + // If content type filter is active, only include matching records
1529 + if (!empty($content_type_filter)) {
1530 + $record_type = isset($record->type) ? $record->type : '';
1531 + if ($record_type !== $content_type_filter) {
1532 + continue;
1533 + }
1534 + }
1535 + $vector_ids[] = $record->id;
1536 + }
1537 + }
1538 +
1539 + // If no matching vectors found, we're done
1540 + // (either no records at all, or all remaining records are non-matching types)
1541 + if (empty($vector_ids)) {
1542 + break;
1543 + }
1544 +
1545 + // Delete vectors in batches (Pinecone has limits on batch operations)
1546 + $batch_size = 100;
1547 + $batches = array_chunk($vector_ids, $batch_size);
1548 +
1549 + foreach ($batches as $batch) {
1550 + $result = $this->mxchat_delete_pinecone_batch($batch, $api_key, $host, $namespace);
1551 + if ($result['success']) {
1552 + $total_deleted += count($batch);
1553 + } else {
1554 + $failed_batches++;
1555 + }
1556 + }
1557 +
1558 + // Small delay to avoid rate limiting
1559 + usleep(100000); // 100ms
1560 +
1561 + } while ($iteration < $max_iterations);
1562 +
1563 + if ($total_deleted === 0) {
1564 + return array(
1565 + 'success' => true,
1566 + 'message' => 'No vectors found to delete'
1567 + );
1568 + }
1569 +
1570 + if ($failed_batches > 0) {
1571 + return array(
1572 + 'success' => false,
1573 + 'message' => sprintf('Deleted %d vectors, but %d batches failed', $total_deleted, $failed_batches)
1574 + );
1575 + }
1576 +
1577 + return array(
1578 + 'success' => true,
1579 + 'message' => "Successfully deleted {$total_deleted} vectors from Pinecone"
1580 + );
1581 +
1582 + } catch (Exception $e) {
1583 + return array(
1584 + 'success' => false,
1585 + 'message' => $e->getMessage()
1586 + );
1587 + }
1588 +}
1589 +
1590 + /**
1591 + * Deletes batch of vectors from Pinecone database
1592 + */
1593 + public function mxchat_delete_pinecone_batch($vector_ids, $api_key, $host, $namespace = '') {
1594 + // Document index (plan 362c31): documents/delete by ids.
1595 + if (class_exists('MxChat_Pinecone_Documents') && MxChat_Pinecone_Documents::is_document_host($host)) {
1596 + $doc_result = MxChat_Pinecone_Documents::delete_ids((array) $vector_ids, array('api_key' => $api_key, 'host' => $host, 'namespace' => $namespace));
1597 + if (is_wp_error($doc_result)) {
1598 + MxChat_Admin::mxchat_log_debug('pinecone_error', 'Pinecone document batch deletion failed: ' . $doc_result->get_error_message());
1599 + return array('success' => false, 'message' => $doc_result->get_error_message());
1600 + }
1601 + return array('success' => true, 'message' => 'Batch deleted successfully from Pinecone');
1602 + }
1603 +
1604 + // Build the API endpoint
1605 + $api_endpoint = "https://{$host}/vectors/delete";
1606 +
1607 + // Prepare the request body with the IDs
1608 + $request_body = array(
1609 + 'ids' => $vector_ids
1610 + );
1611 +
1612 + // Add namespace if provided — omitting it targets the default namespace
1613 + if (!empty($namespace)) {
1614 + $request_body['namespace'] = $namespace;
1615 + }
1616 +
1617 + // Make the deletion request
1618 + $response = wp_remote_post($api_endpoint, array(
1619 + 'headers' => array(
1620 + 'Api-Key' => $api_key,
1621 + 'accept' => 'application/json',
1622 + 'content-type' => 'application/json'
1623 + ),
1624 + 'body' => wp_json_encode($request_body),
1625 + 'timeout' => 60, // Increased timeout for batch operations
1626 + 'method' => 'POST'
1627 + ));
1628 +
1629 + // Handle WordPress HTTP API errors
1630 + if (is_wp_error($response)) {
1631 + MxChat_Admin::mxchat_log_debug('pinecone_error', 'Pinecone batch deletion failed: ' . $response->get_error_message());
1632 + return array(
1633 + 'success' => false,
1634 + 'message' => $response->get_error_message()
1635 + );
1636 + }
1637 +
1638 + // Check response status
1639 + $response_code = wp_remote_retrieve_response_code($response);
1640 + $response_body = wp_remote_retrieve_body($response);
1641 +
1642 + // Pinecone returns 200 for successful deletion
1643 + if ($response_code !== 200) {
1644 + MxChat_Admin::mxchat_log_debug('pinecone_error', 'Pinecone batch deletion failed (HTTP ' . $response_code . ')', array('response' => substr($response_body, 0, 200)));
1645 + return array(
1646 + 'success' => false,
1647 + 'message' => sprintf(
1648 + 'Pinecone API error (HTTP %d): %s',
1649 + $response_code,
1650 + $response_body
1651 + )
1652 + );
1653 + }
1654 +
1655 + return array(
1656 + 'success' => true,
1657 + 'message' => 'Batch deleted successfully from Pinecone'
1658 + );
1659 + }
1660 +
1661 +
1662 +/**
1663 + * Deletes vector from Pinecone using API request
1664 + */
1665 +public function mxchat_delete_from_pinecone_by_vector_id($vector_id, $api_key, $host, $namespace = '') {
1666 + //error_log('=== PINECONE DELETE OPERATION ===');
1667 + //error_log('Vector ID: ' . $vector_id);
1668 + //error_log('Host: ' . $host);
1669 + //error_log('API Key: ' . (empty($api_key) ? 'EMPTY' : 'SET'));
1670 +
1671 + // Document index (plan 362c31): documents/delete by id.
1672 + if (class_exists('MxChat_Pinecone_Documents') && MxChat_Pinecone_Documents::is_document_host($host)) {
1673 + $doc_result = MxChat_Pinecone_Documents::delete_ids(array($vector_id), array('api_key' => $api_key, 'host' => $host, 'namespace' => $namespace));
1674 + if (is_wp_error($doc_result)) {
1675 + return array('success' => false, 'message' => $doc_result->get_error_message());
1676 + }
1677 + return array('success' => true, 'message' => 'Vector deleted successfully from Pinecone');
1678 + }
1679 +
1680 + // First, let's verify the vector exists before trying to delete
1681 + $fetch_url = "https://{$host}/vectors/fetch";
1682 +
1683 + $fetch_params = array(
1684 + 'ids' => array($vector_id)
1685 + );
1686 +
1687 + // Add namespace if provided (though you said you're not using namespaces)
1688 + if (!empty($namespace)) {
1689 + $fetch_params['namespace'] = $namespace;
1690 + }
1691 +
1692 + // Construct URL with query parameters for GET request
1693 + $fetch_url_with_params = $fetch_url . '?' . http_build_query($fetch_params);
1694 +
1695 + $fetch_response = wp_remote_get($fetch_url_with_params, array(
1696 + 'headers' => array(
1697 + 'Api-Key' => $api_key,
1698 + 'accept' => 'application/json'
1699 + ),
1700 + 'timeout' => 15
1701 + ));
1702 +
1703 + if (!is_wp_error($fetch_response) && wp_remote_retrieve_response_code($fetch_response) === 200) {
1704 + $fetch_body = wp_remote_retrieve_body($fetch_response);
1705 + $fetch_data = json_decode($fetch_body, true);
1706 +
1707 + //error_log('DEBUG: Fetch response: ' . print_r($fetch_data, true));
1708 +
1709 + if (isset($fetch_data['vectors']) && isset($fetch_data['vectors'][$vector_id])) {
1710 + //error_log('DEBUG: Vector EXISTS in this index before deletion');
1711 + } else {
1712 + //error_log('WARNING: Vector NOT FOUND in this index! It may be in a different bot\'s index');
1713 + // You might want to return an error here
1714 + }
1715 + } else {
1716 + //error_log('DEBUG: Could not fetch vector to verify existence');
1717 + }
1718 +
1719 + // Now proceed with deletion
1720 + $api_endpoint = "https://{$host}/vectors/delete";
1721 +
1722 + // Prepare the request body with the ID
1723 + $request_body = array(
1724 + 'ids' => array($vector_id)
1725 + );
1726 +
1727 + // Add namespace if provided
1728 + if (!empty($namespace)) {
1729 + $request_body['namespace'] = $namespace;
1730 + }
1731 +
1732 + //error_log('DEBUG: Delete request body: ' . json_encode($request_body));
1733 + //error_log('DEBUG: Delete endpoint: ' . $api_endpoint);
1734 +
1735 + // Make the deletion request
1736 + $response = wp_remote_post($api_endpoint, array(
1737 + 'headers' => array(
1738 + 'Api-Key' => $api_key,
1739 + 'accept' => 'application/json',
1740 + 'content-type' => 'application/json'
1741 + ),
1742 + 'body' => wp_json_encode($request_body),
1743 + 'timeout' => 30
1744 + ));
1745 +
1746 + // Handle WordPress HTTP API errors
1747 + if (is_wp_error($response)) {
1748 + //error_log('DEBUG: WP Error: ' . $response->get_error_message());
1749 + return array(
1750 + 'success' => false,
1751 + 'message' => $response->get_error_message()
1752 + );
1753 + }
1754 +
1755 + // Check response status
1756 + $response_code = wp_remote_retrieve_response_code($response);
1757 + $response_body = wp_remote_retrieve_body($response);
1758 +
1759 + //error_log('DEBUG: Delete response code: ' . $response_code);
1760 + //error_log('DEBUG: Delete response body: ' . $response_body);
1761 +
1762 + // Pinecone returns 200 for successful deletion (even if vector didn't exist)
1763 + if ($response_code !== 200) {
1764 + //error_log('DEBUG: Non-200 response from Pinecone');
1765 + return array(
1766 + 'success' => false,
1767 + 'message' => sprintf(
1768 + 'Pinecone API error (HTTP %d): %s',
1769 + $response_code,
1770 + $response_body
1771 + )
1772 + );
1773 + }
1774 +
1775 + // After deletion, verify it's actually gone
1776 + sleep(1); // Give Pinecone a moment to process
1777 +
1778 + $verify_response = wp_remote_get($fetch_url_with_params, array(
1779 + 'headers' => array(
1780 + 'Api-Key' => $api_key,
1781 + 'accept' => 'application/json'
1782 + ),
1783 + 'timeout' => 15
1784 + ));
1785 +
1786 + if (!is_wp_error($verify_response) && wp_remote_retrieve_response_code($verify_response) === 200) {
1787 + $verify_body = wp_remote_retrieve_body($verify_response);
1788 + $verify_data = json_decode($verify_body, true);
1789 +
1790 + if (isset($verify_data['vectors']) && isset($verify_data['vectors'][$vector_id])) {
1791 + //error_log('ERROR: Vector STILL EXISTS after deletion attempt!');
1792 + return array(
1793 + 'success' => false,
1794 + 'message' => 'Vector still exists after deletion attempt'
1795 + );
1796 + } else {
1797 + //error_log('SUCCESS: Vector confirmed deleted (or never existed)');
1798 + }
1799 + }
1800 +
1801 + //error_log('=== END PINECONE DELETE OPERATION ===');
1802 +
1803 + return array(
1804 + 'success' => true,
1805 + 'message' => 'Vector deleted successfully from Pinecone'
1806 + );
1807 +}
1808 +
1809 + /**
1810 + * Deletes data from Pinecone index using API key
1811 + */
1812 + private function mxchat_delete_from_pinecone($urls, $api_key, $environment, $index_name) {
1813 + // Get the Pinecone host from options (matching your store_in_pinecone_main pattern)
1814 + $options = get_option('mxchat_pinecone_addon_options');
1815 + $host = $options['mxchat_pinecone_host'] ?? '';
1816 +
1817 + if (empty($host)) {
1818 + return array(
1819 + 'success' => false,
1820 + 'message' => 'Pinecone host is not configured. Please set the host in your settings.'
1821 + );
1822 + }
1823 +
1824 + // Document index (plan 362c31): documents/delete by the same md5(url) ids.
1825 + if (class_exists('MxChat_Pinecone_Documents') && MxChat_Pinecone_Documents::is_document_options($options)) {
1826 + $doc_result = MxChat_Pinecone_Documents::delete_ids(array_map('md5', (array) $urls), MxChat_Pinecone_Documents::cfg_from_options($options));
1827 + if (is_wp_error($doc_result)) {
1828 + return array('success' => false, 'message' => $doc_result->get_error_message());
1829 + }
1830 + return array('success' => true, 'message' => sprintf('Successfully deleted %d vectors from Pinecone', count((array) $urls)));
1831 + }
1832 +
1833 + // Build API endpoint using the configured host
1834 + $api_endpoint = "https://{$host}/vectors/delete";
1835 +
1836 + // Create vector IDs from URLs (matching your store method's ID generation)
1837 + $vector_ids = array_map('md5', $urls);
1838 +
1839 + // Prepare the delete request body
1840 + $request_body = array(
1841 + 'ids' => $vector_ids,
1842 + 'filter' => array(
1843 + 'source_url' => array(
1844 + '$in' => $urls
1845 + )
1846 + )
1847 + );
1848 +
1849 + // Make the deletion request
1850 + $response = wp_remote_post($api_endpoint, array(
1851 + 'headers' => array(
1852 + 'Api-Key' => $api_key,
1853 + 'accept' => 'application/json',
1854 + 'content-type' => 'application/json'
1855 + ),
1856 + 'body' => wp_json_encode($request_body),
1857 + 'timeout' => 30,
1858 + 'data_format' => 'body'
1859 + ));
1860 +
1861 + // Handle WordPress HTTP API errors
1862 + if (is_wp_error($response)) {
1863 + return array(
1864 + 'success' => false,
1865 + 'message' => $response->get_error_message()
1866 + );
1867 + }
1868 +
1869 + // Check response status
1870 + $response_code = wp_remote_retrieve_response_code($response);
1871 + if ($response_code !== 200) {
1872 + $body = wp_remote_retrieve_body($response);
1873 + return array(
1874 + 'success' => false,
1875 + 'message' => sprintf(
1876 + 'Pinecone API error (HTTP %d): %s',
1877 + $response_code,
1878 + $body
1879 + )
1880 + );
1881 + }
1882 +
1883 + // Parse response body
1884 + $body = wp_remote_retrieve_body($response);
1885 + $response_data = json_decode($body, true);
1886 +
1887 + // Final validation of the response
1888 + if (json_last_error() !== JSON_ERROR_NONE) {
1889 + return array(
1890 + 'success' => false,
1891 + 'message' => 'Failed to parse Pinecone response: ' . json_last_error_msg()
1892 + );
1893 + }
1894 +
1895 + return array(
1896 + 'success' => true,
1897 + 'message' => sprintf('Successfully deleted %d vectors from Pinecone', count($vector_ids))
1898 + );
1899 + }
1900 +
1901 +
1902 +
1903 +/**
1904 + * Retrieves processed content from Pinecone API
1905 + *
1906 + * @param array $pinecone_options Pinecone configuration options
1907 + * @param array $post_ids Optional array of specific post IDs to check (if empty, checks all)
1908 + * @return array Processed data keyed by post ID
1909 + */
1910 +public function mxchat_get_pinecone_processed_content($pinecone_options, $post_ids = array()) {
1911 + $api_key = $pinecone_options['mxchat_pinecone_api_key'] ?? '';
1912 + $host = $pinecone_options['mxchat_pinecone_host'] ?? '';
1913 +
1914 + if (empty($api_key) || empty($host)) {
1915 + return array();
1916 + }
1917 +
1918 + $pinecone_data = array();
1919 +
1920 + try {
1921 + // Always get fresh data from Pinecone
1922 + $pinecone_data = $this->mxchat_scan_pinecone_for_processed_content($pinecone_options, $post_ids);
1923 +
1924 + // Method 2: Final fallback - try stats endpoint (if available)
1925 + if (empty($pinecone_data)) {
1926 + $stats_url = "https://{$host}/describe_index_stats";
1927 +
1928 + $response = wp_remote_post($stats_url, array(
1929 + 'headers' => array(
1930 + 'Api-Key' => $api_key,
1931 + 'Content-Type' => 'application/json'
1932 + ),
1933 + 'body' => json_encode(array()),
1934 + 'timeout' => 30
1935 + ));
1936 +
1937 + if (!is_wp_error($response) && wp_remote_retrieve_response_code($response) === 200) {
1938 + $body = wp_remote_retrieve_body($response);
1939 + $stats_data = json_decode($body, true);
1940 + }
1941 + }
1942 +
1943 + } catch (Exception $e) {
1944 + // Log error but don't return cached data
1945 + }
1946 +
1947 + return $pinecone_data;
1948 +}
1949 + // ========================================
1950 + // HELPER METHODS
1951 + // ========================================
1952 +
1953 + /**
1954 + * Validates Pinecone API credentials
1955 + */
1956 + private function mxchat_validate_pinecone_credentials($api_key, $host) {
1957 + if (empty($api_key) || empty($host)) {
1958 + return false;
1959 + }
1960 + return true;
1961 + }
1962 +
1963 + /**
1964 + * Get Pinecone API credentials from options
1965 + */
1966 + private function mxchat_get_pinecone_credentials() {
1967 + $options = get_option('mxchat_options', array());
1968 + return array(
1969 + 'api_key' => isset($options['pinecone_api_key']) ? $options['pinecone_api_key'] : '',
1970 + 'host' => isset($options['pinecone_host']) ? $options['pinecone_host'] : ''
1971 + );
1972 + }
1973 +
1974 + /**
1975 + * Log Pinecone operation errors
1976 + */
1977 + private function log_pinecone_error($operation, $error_message) {
1978 + //error_log("MxChat Pinecone {$operation} Error: " . $error_message);
1979 + }
1980 +
1981 + // ========================================
1982 + // STATIC ACCESS METHODS (for backward compatibility)
1983 + // ========================================
1984 +
1985 + /**
1986 + * Get singleton instance
1987 + */
1988 + public static function get_instance() {
1989 + static $instance = null;
1990 + if ($instance === null) {
1991 + $instance = new self();
1992 + }
1993 + return $instance;
1994 + }
1995 +}
1996 +
1997 +// Initialize the Pinecone manager
1998 +$mxchat_pinecone_manager = MxChat_Pinecone_Manager::get_instance();