mxchat-basic / admin / class-ajax-handler.php

class-ajax-handler.php in MxChat – AI Chatbot & Content Generation for WordPress 2.6.2, at admin/class-ajax-handler.php

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1	<?php
2	/**
3	* File: admin/class-ajax-handler.php
4	*
5	* Handles all AJAX requests for MxChat admin functionality
6	*/
7
8	if (!defined('ABSPATH')) {
9	exit; // Exit if accessed directly
10	}
11
12	class MxChat_Ajax_Handler {
13
14	private $pinecone_manager = null;
15
16	/**
17	* Constructor - Register all AJAX hooks
18	*/
19	public function __construct() {
20	$this->mxchat_init_ajax_hooks();
21	}
22
23
24	/**
25	* Register all AJAX action hooks
26	*/
27	private function mxchat_init_ajax_hooks() {
28	// Settings AJAX
29	add_action('wp_ajax_mxchat_save_setting', array($this, 'mxchat_save_setting_callback'));
30	add_action('wp_ajax_mxchat_save_prompts_setting', array($this, 'mxchat_save_prompts_setting_callback'));
31	add_action('wp_ajax_migrate_pinecone_settings', array($this, 'ajax_migrate_pinecone_settings'));
32
33	// License AJAX
34	add_action('wp_ajax_mxchat_handle_activate_license', array($this, 'mxchat_handle_activate_license'));
35	add_action('wp_ajax_mxchat_check_license_status', array($this, 'mxchat_check_license_status'));
36	add_action('wp_ajax_mxchat_deactivate_license', array($this, 'mxchat_deactivate_license'));
37
38	// Actions & Intents AJAX
39	add_action('wp_ajax_mxchat_toggle_action', array($this, 'mxchat_toggle_action'));
40	add_action('wp_ajax_mxchat_update_intent_threshold', array($this, 'mxchat_update_intent_threshold'));
41
42	add_action('wp_ajax_mxchat_save_selected_bot', array($this, 'mxchat_save_selected_bot'));
43	add_action('wp_ajax_mxchat_check_api_keys', array($this, 'mxchat_check_api_keys'));
44	}
45
46	// ========================================
47	// SETTINGS AJAX HANDLERS
48	// ========================================
49
50	/**
51	* Validates and saves chat settings via AJAX request
52	*/
53	public function mxchat_save_setting_callback() {
54	check_ajax_referer('mxchat_save_setting_nonce');
55	if (!current_user_can('manage_options')) {
56	('MXChat Save: Unauthorized access attempt');
57	wp_send_json_error(['message' => esc_html__('Unauthorized', 'mxchat')]);
58	}
59
60	$name = isset($_POST['name']) ? $_POST['name'] : '';
61	// Strip slashes from the value before saving
62	$value = isset($_POST['value']) ? stripslashes($_POST['value']) : '';
63
64	//error_log('MXChat Save: Processing field name: ' . $name);
65	//error_log('MXChat Save: Field value: ' . $value);
66
67	if (empty($name)) {
68	//error_log('MXChat Save: Empty field name detected');
69	wp_send_json_error(['message' => esc_html__('Invalid field name', 'mxchat')]);
70	}
71
72	// Load the full options array
73	$options = get_option('mxchat_options', []);
74	//error_log('MXChat Save: Current options array: ' . print_r($options, true));
75
76	// Handle special cases
77	switch ($name) {
78	case 'model':
79	//error_log('MXChat Save: Processing model selection');
80	//error_log('MXChat Save: Model value received: ' . $value);
81	//error_log('MXChat Save: Value type: ' . gettype($value));
82	//error_log('MXChat Save: Value length: ' . strlen($value));
83	//error_log('MXChat Save: Value === "openrouter": ' . ($value === 'openrouter' ? 'YES' : 'NO'));
84
85	// Allow 'openrouter' or validate against whitelist
86	if ($value === 'openrouter') {
87	//error_log('MXChat Save: Setting model to openrouter');
88	$options['model'] = 'openrouter';
89	} else {
90	//error_log('MXChat Save: Checking against whitelist');
91	$allowed_models = array(
92	'gemini-2.0-flash', 'gemini-2.0-flash-lite', 'gemini-1.5-pro', 'gemini-1.5-flash',
93	'grok-4-0709', 'grok-4-1-fast-reasoning', 'grok-4-1-fast-non-reasoning', 'grok-3-beta', 'grok-3-fast-beta', 'grok-3-mini-beta',
94	'grok-3-mini-fast-beta', 'grok-2',
95	'deepseek-chat',
96	'claude-sonnet-4-5-20250929', 'claude-opus-4-1-20250805', 'claude-haiku-4-5-20251001',
97	'claude-opus-4-20250514', 'claude-sonnet-4-20250514', 'claude-3-7-sonnet-20250219',
98	'claude-3-5-sonnet-20241022', 'claude-3-opus-20240229', 'claude-3-sonnet-20240229',
99	'claude-3-haiku-20240307',
100	'gpt-5.2', 'gpt-5.1-2025-11-13', 'gpt-5', 'gpt-5-mini', 'gpt-5-nano', 'gpt-4.1-2025-04-14',
101	'gpt-4o', 'gpt-4o-mini', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo',
102	);
103
104	//error_log('MXChat Save: in_array result: ' . (in_array($value, $allowed_models) ? 'YES' : 'NO'));
105
106	if (in_array($value, $allowed_models)) {
107	//error_log('MXChat Save: Model is in whitelist, saving');
108	$options['model'] = sanitize_text_field($value);
109	} else {
110	//error_log('MXChat Save: Invalid model rejected: ' . $value);
111	//error_log('MXChat Save: Allowed models: ' . print_r($allowed_models, true));
112	wp_send_json_error(['message' => esc_html__('Invalid model selected', 'mxchat')]);
113	return;
114	}
115	}
116	break;
117
118	case 'openrouter_selected_model':
119	//error_log('MXChat Save: Processing OpenRouter model: ' . $value);
120	$options['openrouter_selected_model'] = sanitize_text_field($value);
121	// Force immediate save for new keys
122	//error_log('MXChat Save: OpenRouter model saved immediately');
123	break;
124
125	case 'openrouter_selected_model_name':
126	//error_log('MXChat Save: Processing OpenRouter model name: ' . $value);
127	$options['openrouter_selected_model_name'] = sanitize_text_field($value);
128	// Force immediate save for new keys
129	//error_log('MXChat Save: OpenRouter model name saved immediately');
130	break;
131
132	case 'openrouter_api_key':
133	//error_log('MXChat Save: Processing OpenRouter API key');
134	$options['openrouter_api_key'] = sanitize_text_field($value);
135	break;
136
137	// REMOVED DUPLICATE case 'openrouter_selected_model_name' HERE!
138
139	case 'additional_popular_questions':
140	//error_log('MXChat Save: Processing additional_popular_questions');
141	$questions = json_decode($value, true); // No need for stripslashes here
142	if (is_array($questions)) {
143	$options[$name] = $questions;
144	// Also update old option for backwards compatibility
145	update_option('additional_popular_questions', $questions);
146	//error_log('MXChat Save: Saved ' . count($questions) . ' additional questions');
147	} else {
148	//error_log('MXChat Save: Failed to decode questions JSON');
149	}
150	break;
151	case 'email_blocker_header_content':
152	//error_log('MXChat Save: Processing email_blocker_header_content');
153	// Allow HTML content but sanitize it safely
154	$options[$name] = wp_kses_post($value);
155	break;
156	case 'email_blocker_button_text':
157	//error_log('MXChat Save: Processing email_blocker_button_text');
158	$options[$name] = sanitize_text_field($value);
159	break;
160	case 'name_field_placeholder':
161	//error_log('MXChat Save: Processing name_field_placeholder');
162	$options[$name] = sanitize_text_field($value);
163	break;
164	case 'similarity_threshold':
165	//error_log('MXChat Save: Processing similarity_threshold');
166	// Save to the options array
167	$options[$name] = $value;
168	break;
169	case 'user_message_bg_color':
170	case 'user_message_font_color':
171	case 'bot_message_bg_color':
172	case 'bot_message_font_color':
173	case 'top_bar_bg_color':
174	case 'send_button_font_color':
175	case 'chatbot_background_color':
176	case 'icon_color':
177	case 'chat_input_font_color':
178	case 'live_agent_message_bg_color':
179	case 'live_agent_message_font_color':
180	case 'mode_indicator_bg_color':
181	case 'mode_indicator_font_color':
182	case 'toolbar_icon_color':
183	case 'quick_questions_toggle_color':
184	//error_log('MXChat Save: Processing color value: ' . $name);
185	// Store color values directly
186	$options[$name] = $value;
187	break;
188	case 'live_agent_status':
189	//error_log('MXChat Save: Processing live_agent_status');
190	// Set the new value
191	$options[$name] = ($value === 'on') ? 'on' : 'off';
192	break;
193	case 'enable_woocommerce_integration':
194	//error_log('MXChat Save: Processing enable_woocommerce_integration');
195	// Handle values that used to be 1/0
196	$options[$name] = ($value === 'on' \|\| $value === '1') ? 'on' : 'off';
197	break;
198	case 'post_type_visibility_mode':
199	// Validate mode value
200	$allowed_modes = array('all', 'include', 'exclude');
201	$options[$name] = in_array($value, $allowed_modes) ? $value : 'all';
202	break;
203	case 'post_type_visibility_list':
204	// Handle JSON array of post types
205	$post_types = json_decode($value, true);
206	if (is_array($post_types)) {
207	// Sanitize each post type slug
208	$options[$name] = array_map('sanitize_key', $post_types);
209	} else {
210	$options[$name] = array();
211	}
212	break;
213	default:
214	// First check for rate limits settings
215	if (strpos($name, 'mxchat_options[rate_limits]') !== false) {
216	//error_log('MXChat Save: Detected rate_limits field: ' . $name);
217
218	// Extract role ID and setting from the name
219	preg_match('/\[rate_limits\]\[(.?)\]\[(.?)\]/', $name, $matches);
220	//error_log('MXChat Save: Regex matches: ' . print_r($matches, true));
221
222	if (isset($matches[1]) && isset($matches[2])) {
223	$role_id = $matches[1];
224	$setting_key = $matches[2]; // limit, timeframe, or message
225
226	//error_log('MXChat Save: Role ID = ' . $role_id . ', Setting Key = ' . $setting_key);
227
228	// Initialize rate_limits if it doesn't exist
229	if (!isset($options['rate_limits'])) {
230	// //error_log('MXChat Save: Initializing rate_limits array');
231	$options['rate_limits'] = [];
232	}
233
234	// Initialize role settings if it doesn't exist
235	if (!isset($options['rate_limits'][$role_id])) {
236	//error_log('MXChat Save: Initializing rate_limits for role: ' . $role_id);
237	$options['rate_limits'][$role_id] = [
238	'limit' => ($role_id === 'logged_out') ? '10' : '100',
239	'timeframe' => 'daily',
240	'message' => 'Rate limit exceeded. Please try again later.'
241	];
242	}
243
244	// Update the specific setting
245	$options['rate_limits'][$role_id][$setting_key] = $value;
246	//error_log('MXChat Save: Updated rate_limits[' . $role_id . '][' . $setting_key . '] = ' . $value);
247	} else {
248	//error_log('MXChat Save: Failed to parse rate_limits pattern: ' . $name);
249	}
250	}
251	// Then check for role rate limits (old format)
252	else if (strpos($name, 'mxchat_options[role_rate_limits]') !== false) {
253	//error_log('MXChat Save: Processing role_rate_limits field: ' . $name);
254	// Extract role ID from the name
255	preg_match('/\[role_rate_limits\]\[(.*?)\]/', $name, $matches);
256	//error_log('MXChat Save: Regex matches: ' . print_r($matches, true));
257
258	if (isset($matches[1])) {
259	$role_id = $matches[1];
260	// Initialize role_rate_limits if it doesn't exist
261	if (!isset($options['role_rate_limits'])) {
262	//error_log('MXChat Save: Initializing role_rate_limits array');
263	$options['role_rate_limits'] = [];
264	}
265	// Update the specific role's rate limit
266	$options['role_rate_limits'][$role_id] = sanitize_text_field($value);
267	//error_log('MXChat Save: Updated role_rate_limits[' . $role_id . '] = ' . $value);
268	} else {
269	//error_log('MXChat Save: Failed to parse role_rate_limits pattern: ' . $name);
270	}
271	}
272	// Handle toggles
273	else if (strpos($name, 'toggle') !== false \|\| in_array($name, [
274	'chat_persistence_toggle',
275	'privacy_toggle',
276	'complianz_toggle',
277	'chat_toolbar_toggle',
278	'show_pdf_upload_button',
279	'show_word_upload_button',
280	'enable_streaming_toggle',
281	'contextual_awareness_toggle',
282	'enable_email_block',
283	'enable_name_field'
284	])) {
285	//error_log('MXChat Save: Processing toggle: ' . $name);
286	$options[$name] = ($value === 'on') ? 'on' : 'off';
287	} else {
288	//error_log('MXChat Save: Processing standard field: ' . $name);
289	// Store all other values directly
290	$options[$name] = $value;
291	}
292	break;
293	}
294
295	// Save all updates to the options array
296	$updated = update_option('mxchat_options', $options);
297	//error_log('MXChat Save: Update result: ' . ($updated ? 'success' : 'unchanged') . ' for field: ' . $name);
298	//error_log('MXChat Save: Updated options array: ' . print_r($options, true));
299
300	// Always return success even if WordPress says nothing changed
301	// (which happens when the value is the same as before)
302	wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
303	}
304
305	/**
306	* Save the selected bot for knowledge base operations
307	*/
308	public function mxchat_save_selected_bot() {
309	// Check nonce
310	if (!wp_verify_nonce($_POST['nonce'] ?? '', 'mxchat_save_setting_nonce')) {
311	wp_send_json_error('Invalid nonce');
312	}
313
314	// Check permissions
315	if (!current_user_can('manage_options')) {
316	wp_send_json_error('Unauthorized');
317	}
318
319	$bot_id = isset($_POST['bot_id']) ? sanitize_key($_POST['bot_id']) : 'default';
320
321	// Save as user meta for the current user
322	$user_id = get_current_user_id();
323	update_user_meta($user_id, 'mxchat_selected_knowledge_bot', $bot_id);
324
325	// Also save as an option for site-wide default
326	update_option('mxchat_current_knowledge_bot', $bot_id);
327
328	// No cache clearing needed since we removed caching
329
330	wp_send_json_success(array(
331	'message' => 'Bot selection saved',
332	'bot_id' => $bot_id
333	));
334	}
335
336	/**
337	* Handles AJAX request for saving chat settings
338	*/
339	public function mxchat_save_prompts_setting_callback() {
340	check_ajax_referer('mxchat_prompts_setting_nonce');
341
342	if (!current_user_can('manage_options')) {
343	wp_send_json_error(['message' => esc_html__('Unauthorized', 'mxchat')]);
344	}
345
346	$name = isset($_POST['name']) ? $_POST['name'] : '';
347	$value = isset($_POST['value']) ? stripslashes($_POST['value']) : '';
348
349	//error_log('[MXCHAT-PROMPTS] Saving setting: ' . $name . ' = ' . $value);
350
351	if (empty($name)) {
352	wp_send_json_error(['message' => esc_html__('Invalid field name', 'mxchat')]);
353	}
354
355	// Handle Pinecone settings - BYPASS WORDPRESS SANITIZATION
356	if (strpos($name, 'mxchat_pinecone_addon_options') !== false) {
357	//error_log('[MXCHAT-PROMPTS] Processing Pinecone setting: ' . $name);
358
359	// Extract the field name
360	if (preg_match('/mxchat_pinecone_addon_options\[([^\]]+)\]/', $name, $matches)) {
361	$field_name = $matches[1];
362	//error_log('[MXCHAT-PROMPTS] Extracted field name: ' . $field_name);
363
364	// Get current options directly from database - NO WordPress filters
365	global $wpdb;
366	$current_options_raw = $wpdb->get_var(
367	$wpdb->prepare(
368	"SELECT option_value FROM {$wpdb->options} WHERE option_name = %s",
369	'mxchat_pinecone_addon_options'
370	)
371	);
372
373	// FIX: Handle the case where the option doesn't exist yet
374	if ($current_options_raw === null) {
375	// Option doesn't exist, create it with default values
376	$current_options = array(
377	'mxchat_use_pinecone' => '0',
378	'mxchat_pinecone_api_key' => '',
379	'mxchat_pinecone_host' => '',
380	'mxchat_pinecone_index' => '',
381	'mxchat_pinecone_environment' => ''
382	);
383	//error_log('[MXCHAT-PROMPTS] Option does not exist, creating with defaults');
384	} else {
385	// Unserialize the raw data
386	$current_options = maybe_unserialize($current_options_raw);
387	if (!is_array($current_options)) {
388	// Fallback to defaults if unserialization fails
389	$current_options = array(
390	'mxchat_use_pinecone' => '0',
391	'mxchat_pinecone_api_key' => '',
392	'mxchat_pinecone_host' => '',
393	'mxchat_pinecone_index' => '',
394	'mxchat_pinecone_environment' => ''
395	);
396	//error_log('[MXCHAT-PROMPTS] Failed to unserialize, using defaults');
397	}
398	}
399
400	//error_log('[MXCHAT-PROMPTS] Current options from DB: ' . print_r($current_options, true));
401
402	// Update the specific field with proper sanitization
403	switch ($field_name) {
404	case 'mxchat_use_pinecone':
405	$new_value = ($value === '1') ? '1' : '0';
406	break;
407	case 'mxchat_pinecone_api_key':
408	case 'mxchat_pinecone_host':
409	case 'mxchat_pinecone_index':
410	case 'mxchat_pinecone_environment':
411	$new_value = sanitize_text_field($value);
412	if ($field_name === 'mxchat_pinecone_host') {
413	$new_value = str_replace(['https://', 'http://'], '', $new_value);
414	}
415	break;
416	default:
417	wp_send_json_error(['message' => esc_html__('Unknown Pinecone field', 'mxchat')]);
418	}
419
420	$current_options[$field_name] = $new_value;
421	//error_log('[MXCHAT-PROMPTS] New value for ' . $field_name . ': "' . $new_value . '"');
422	//error_log('[MXCHAT-PROMPTS] Updated options: ' . print_r($current_options, true));
423
424	// Save directly to database to bypass WordPress sanitization
425	$serialized_options = maybe_serialize($current_options);
426
427	// FIX: Use INSERT ... ON DUPLICATE KEY UPDATE or separate INSERT/UPDATE logic
428	$option_exists = $wpdb->get_var(
429	$wpdb->prepare(
430	"SELECT COUNT(*) FROM {$wpdb->options} WHERE option_name = %s",
431	'mxchat_pinecone_addon_options'
432	)
433	);
434
435	if ($option_exists > 0) {
436	// Update existing option
437	$save_result = $wpdb->update(
438	$wpdb->options,
439	array('option_value' => $serialized_options),
440	array('option_name' => 'mxchat_pinecone_addon_options'),
441	array('%s'),
442	array('%s')
443	);
444	//error_log('[MXCHAT-PROMPTS] Updated existing option, result: ' . ($save_result !== false ? 'SUCCESS' : 'FAILED'));
445	} else {
446	// Insert new option
447	$save_result = $wpdb->insert(
448	$wpdb->options,
449	array(
450	'option_name' => 'mxchat_pinecone_addon_options',
451	'option_value' => $serialized_options,
452	'autoload' => 'yes'
453	),
454	array('%s', '%s', '%s')
455	);
456	//error_log('[MXCHAT-PROMPTS] Inserted new option, result: ' . ($save_result !== false ? 'SUCCESS' : 'FAILED'));
457	}
458
459	// Clear any WordPress option cache to ensure get_option() returns fresh data
460	wp_cache_delete('mxchat_pinecone_addon_options', 'options');
461
462	// IMPROVED VERIFICATION - Check if the database operation succeeded
463	if ($save_result !== false) {
464	// Double-check by reading fresh from database
465	$verification_raw = $wpdb->get_var(
466	$wpdb->prepare(
467	"SELECT option_value FROM {$wpdb->options} WHERE option_name = %s",
468	'mxchat_pinecone_addon_options'
469	)
470	);
471	$verification_options = maybe_unserialize($verification_raw);
472	$verified_value = isset($verification_options[$field_name]) ? $verification_options[$field_name] : 'NOT_FOUND';
473
474	//error_log('[MXCHAT-PROMPTS] Final verification - Expected: "' . $new_value . '", Got: "' . $verified_value . '"');
475
476	// Use loose comparison (==) instead of strict (===) to avoid type issues
477	if ($verified_value == $new_value \|\| $save_result > 0) {
478	wp_send_json_success(['message' => esc_html__('Pinecone setting saved', 'mxchat')]);
479	} else {
480	// Still return success if the DB operation worked, even if verification is quirky
481	//error_log('[MXCHAT-PROMPTS] Verification mismatch but DB operation succeeded');
482	wp_send_json_success(['message' => esc_html__('Pinecone setting saved (DB success)', 'mxchat')]);
483	}
484	} else {
485	wp_send_json_error(['message' => esc_html__('Database save failed', 'mxchat')]);
486	}
487	} else {
488	wp_send_json_error(['message' => esc_html__('Invalid field name format', 'mxchat')]);
489	}
490
491	return; // Exit here for Pinecone settings
492	}
493	// Handle auto-sync settings (existing functionality)
494	if (strpos($name, 'mxchat_auto_sync_') === 0) {
495	$value = ($value === 'on' \|\| $value === '1') ? '1' : '0';
496	$updated = update_option($name, $value);
497
498	if ($updated \|\| get_option($name) === $value) {
499	wp_send_json_success(['message' => esc_html__('Auto-sync setting saved', 'mxchat')]);
500	} else {
501	wp_send_json_error(['message' => esc_html__('No changes detected', 'mxchat')]);
502	}
503	}
504
505	// Handle other prompts options
506	$options = get_option('mxchat_prompts_options', []);
507	$options[$name] = $value;
508	$updated = update_option('mxchat_prompts_options', $options);
509
510	if ($updated) {
511	wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
512	} else {
513	wp_send_json_error(['message' => esc_html__('No changes detected', 'mxchat')]);
514	}
515	}
516
517
518	/**
519	* Handles AJAX request for Pinecone settings migration
520	*/
521	public function ajax_migrate_pinecone_settings() {
522	// Verify nonce
523	if (!wp_verify_nonce($_POST['_ajax_nonce'] ?? '', 'mxchat_save_setting_nonce')) {
524	wp_send_json_error('Invalid nonce');
525	}
526
527	// Check permissions
528	if (!current_user_can('manage_options')) {
529	wp_send_json_error('Unauthorized access');
530	}
531
532	// Check if old Pinecone addon options exist
533	$old_options = get_option('mxchat_pinecone_addon_options', array());
534
535	if (empty($old_options)) {
536	wp_send_json_success(array('migrated' => false, 'message' => 'No old settings found'));
537	}
538
539	// Get current core plugin options
540	$current_options = get_option('mxchat_pinecone_addon_options', array());
541
542	// Only migrate if core options are empty or if explicitly requested
543	$should_migrate = empty($current_options) \|\|
544	(empty($current_options['mxchat_pinecone_api_key']) && !empty($old_options['mxchat_pinecone_api_key']));
545
546	if ($should_migrate) {
547	// Migrate settings with proper sanitization
548	$migrated_options = array(
549	'mxchat_use_pinecone' => $old_options['mxchat_use_pinecone'] ?? '0',
550	'mxchat_pinecone_api_key' => sanitize_text_field($old_options['mxchat_pinecone_api_key'] ?? ''),
551	'mxchat_pinecone_host' => sanitize_text_field($old_options['mxchat_pinecone_host'] ?? ''),
552	'mxchat_pinecone_index' => sanitize_text_field($old_options['mxchat_pinecone_index'] ?? ''),
553	'mxchat_pinecone_environment' => sanitize_text_field($old_options['mxchat_pinecone_environment'] ?? '')
554	);
555
556	update_option('mxchat_pinecone_addon_options', $migrated_options);
557
558	wp_send_json_success(array(
559	'migrated' => true,
560	'message' => 'Settings migrated successfully from Pinecone add-on'
561	));
562	} else {
563	wp_send_json_success(array(
564	'migrated' => false,
565	'message' => 'Settings already exist in core plugin'
566	));
567	}
568	}
569
570
571	// ========================================
572	// LICENSE AJAX HANDLERS
573	// ========================================
574
575	/**
576	* Validates and activates chat license via AJAX
577	*/
578	public function mxchat_handle_activate_license() {
579	// Check nonce
580	if (!check_ajax_referer('mxchat_activate_license_nonce', 'security', false)) {
581	wp_send_json_error(esc_html__('Invalid security token', 'mxchat'));
582	return;
583	}
584
585	// Verify user capabilities
586	if (!current_user_can('manage_options')) {
587	wp_send_json_error(esc_html__('Unauthorized access', 'mxchat'));
588	return;
589	}
590
591	$license_key = isset($_POST['mxchat_activation_key']) ? sanitize_text_field($_POST['mxchat_activation_key']) : '';
592	$customer_email = isset($_POST['mxchat_pro_email']) ? sanitize_email($_POST['mxchat_pro_email']) : '';
593
594	if (empty($license_key) \|\| empty($customer_email)) {
595	wp_send_json_error(esc_html__('Email or License Key is missing', 'mxchat'));
596	return;
597	}
598
599	$product_id = 'MxChatPRO';
600	$domain = parse_url(home_url(), PHP_URL_HOST); // Get the current domain
601
602	// Call WooCommerce Software API for activation (not just validation)
603	$response = wp_remote_get(
604	add_query_arg(
605	array(
606	'wc-api' => 'software-api',
607	'request' => 'activation',
608	'email' => $customer_email,
609	'license_key' => $license_key,
610	'product_id' => $product_id,
611	'instance' => $domain, // THIS IS KEY - include the domain as instance
612	'platform' => 'wordpress' // Optional but good to include
613	),
614	'https://mxchat.ai/'
615	),
616	array(
617	'timeout' => 60,
618	'sslverify' => true
619	)
620	);
621
622	if (is_wp_error($response)) {
623	$error_message = $response->get_error_message();
624	//error_log('MxChat License Activation Error: ' . $error_message);
625	wp_send_json_error(esc_html__('Activation failed due to a server error: ', 'mxchat') . $error_message);
626	return;
627	}
628
629	$response_code = wp_remote_retrieve_response_code($response);
630	$body = wp_remote_retrieve_body($response);
631
632	// Log response for debugging
633	//error_log('MxChat License Response Code: ' . $response_code);
634	//error_log('MxChat License Response Body: ' . $body);
635
636	if ($response_code !== 200) {
637	wp_send_json_error(esc_html__('Server returned error code: ', 'mxchat') . $response_code);
638	return;
639	}
640
641	$data = json_decode($body);
642
643	if ($data && isset($data->activated) && $data->activated) {
644	// Success - save local options
645	update_option('mxchat_license_status', 'active');
646	update_option('mxchat_pro_email', $customer_email);
647	update_option('mxchat_activation_key', $license_key);
648	delete_option('mxchat_license_error');
649
650	// Also track on your website (this is your existing domain tracking)
651	$this->track_domain_on_website($license_key, $customer_email, $domain);
652
653	wp_send_json_success(array('message' => esc_html__('License activated successfully', 'mxchat')));
654	} else {
655	$error_message = isset($data->error) ? $data->error : esc_html__('Activation failed', 'mxchat');
656	update_option('mxchat_license_status', 'inactive');
657	update_option('mxchat_license_error', $error_message);
658
659	//error_log('MxChat Activation failed: ' . $error_message);
660	wp_send_json_error($error_message);
661	}
662	}
663
664	/**
665	* Track domain on your website (separate from WooCommerce activation)
666	*/
667	private function track_domain_on_website($license_key, $email, $domain) {
668	// This calls your website's tracking API
669	wp_remote_post('https://mxchat.ai/mxchat-api/activate-license', array(
670	'body' => array(
671	'mxchat_pro_email' => $email,
672	'mxchat_activation_key' => $license_key,
673	'domain' => $domain
674	),
675	'timeout' => 10,
676	'sslverify' => true
677	));
678	}
679
680	/**
681	* Validates license via AJAX with email and key
682	*/
683	public function mxchat_check_license_status() {
684	// Verify nonce
685	if (!check_ajax_referer('mxchat_activate_license_nonce', 'security', false)) {
686	wp_send_json_error('Security check failed');
687	return;
688	}
689
690	// Add isset checks for safety
691	$email = isset($_POST['email']) ? sanitize_email($_POST['email']) : '';
692	$key = isset($_POST['key']) ? sanitize_text_field($_POST['key']) : '';
693
694	// Check if this license is actually active in your system
695	$is_active = (get_option('mxchat_license_status') === 'active' &&
696	get_option('mxchat_pro_email') === $email &&
697	get_option('mxchat_activation_key') === $key);
698
699	wp_send_json(array(
700	'is_active' => $is_active
701	));
702	}
703
704	/**
705	* Handle license deactivation - Complete version for plugin
706	*/
707	function mxchat_deactivate_license() {
708	// Add debugging
709	//error_log('MxChat deactivate function called');
710
711	// Check nonce
712	if (!check_ajax_referer('mxchat_activate_license_nonce', 'security', false)) {
713	//error_log('MxChat deactivate: Nonce check failed');
714	wp_send_json_error('Security check failed.');
715	return;
716	}
717
718	//error_log('MxChat deactivate: Nonce check passed');
719
720	$license_key = get_option('mxchat_activation_key');
721	$email = get_option('mxchat_pro_email');
722	$domain = parse_url(home_url(), PHP_URL_HOST);
723
724	//error_log('MxChat deactivate: License: ' . $license_key . ', Email: ' . $email . ', Domain: ' . $domain);
725
726	if (empty($license_key) \|\| empty($email)) {
727	//error_log('MxChat deactivate: No active license found');
728	wp_send_json_error('No active license found.');
729	return;
730	}
731
732	// Clear local license data first
733	delete_option('mxchat_license_status');
734	delete_option('mxchat_pro_email');
735	delete_option('mxchat_activation_key');
736	delete_option('mxchat_license_error');
737
738	//error_log('MxChat deactivate: Local data cleared');
739
740	// Notify your website's API to properly deactivate
741	$response = wp_remote_post('https://mxchat.ai/mxchat-api/deactivate-license', array(
742	'body' => array(
743	'license_key' => $license_key,
744	'email' => $email,
745	'domain' => $domain
746	),
747	'timeout' => 15,
748	'sslverify' => true
749	));
750
751	if (is_wp_error($response)) {
752	//error_log('MxChat deactivate: Server error - ' . $response->get_error_message());
753	wp_send_json_success(array(
754	'message' => 'License deactivated locally. Server could not be contacted to free activation slot.',
755	'server_notified' => false
756	));
757	return;
758	}
759
760	$response_body = wp_remote_retrieve_body($response);
761	$response_data = json_decode($response_body, true);
762
763	//error_log('MxChat deactivate: Server response - ' . $response_body);
764
765	if (isset($response_data['success']) && $response_data['success']) {
766	//error_log('MxChat deactivate: Success with server notification');
767	wp_send_json_success(array(
768	'message' => 'License deactivated successfully. Activation slot has been freed up.',
769	'server_notified' => true
770	));
771	} else {
772	//error_log('MxChat deactivate: Server responded but deactivation may have failed');
773	wp_send_json_success(array(
774	'message' => 'License deactivated locally. Please check your account dashboard to verify the activation was freed.',
775	'server_notified' => false
776	));
777	}
778	}
779
780
781	// ========================================
782	// ACTIONS & INTENTS AJAX HANDLERS
783	// ========================================
784
785	/**
786	* Validates nonce and returns JSON error on failure
787	*/
788	public function mxchat_toggle_action() {
789	// Check nonce
790	if (!isset($_POST['nonce']) \|\| !wp_verify_nonce($_POST['nonce'], 'mxchat_actions_nonce')) {
791	wp_send_json_error(array('message' => 'Security check failed'));
792	return;
793	}
794
795	// Check permissions
796	if (!current_user_can('manage_options')) {
797	wp_send_json_error(array('message' => 'Permission denied'));
798	return;
799	}
800
801	// Validate params
802	$intent_id = isset($_POST['intent_id']) ? intval($_POST['intent_id']) : 0;
803	$enabled = isset($_POST['enabled']) ? (bool)$_POST['enabled'] : false;
804
805	if (!$intent_id) {
806	wp_send_json_error(array('message' => 'Invalid action ID'));
807	return;
808	}
809
810	// Update the intent/action status in the database
811	global $wpdb;
812	$table_name = $wpdb->prefix . 'mxchat_intents';
813
814	// Using the 'enabled' field - add this field if it doesn't exist
815	$result = $wpdb->update(
816	$table_name,
817	array('enabled' => $enabled ? 1 : 0),
818	array('id' => $intent_id),
819	array('%d'),
820	array('%d')
821	);
822
823	if ($result === false) {
824	wp_send_json_error(array('message' => 'Database error'));
825	return;
826	}
827
828	wp_send_json_success();
829	}
830
831
832	/**
833	* Validates permissions for AJAX request handling
834	*/
835	public function mxchat_update_intent_threshold() {
836	// Check permissions
837	if (!current_user_can('manage_options')) {
838	if (wp_doing_ajax()) {
839	wp_send_json_error(array('message' => 'Unauthorized user'));
840	return;
841	}
842	wp_die(esc_html__('Unauthorized user', 'mxchat'));
843	}
844
845	// Verify nonce
846	check_admin_referer('mxchat_update_intent_threshold_nonce');
847
848	// Process the update if we have valid data
849	if (isset($_POST['intent_id'], $_POST['intent_threshold'])) {
850	global $wpdb;
851	$table_name = $wpdb->prefix . 'mxchat_intents';
852	$intent_id = intval($_POST['intent_id']);
853	$threshold_percentage = max(70, min(95, intval($_POST['intent_threshold'])));
854	$similarity_threshold = $threshold_percentage / 100;
855
856	$result = $wpdb->update(
857	$table_name,
858	['similarity_threshold' => $similarity_threshold],
859	['id' => $intent_id],
860	['%f'],
861	['%d']
862	);
863
864	// Handle AJAX requests
865	if (wp_doing_ajax()) {
866	if ($result === false) {
867	wp_send_json_error(array('message' => 'Failed to update threshold'));
868	} else {
869	wp_send_json_success(array('threshold' => $threshold_percentage));
870	}
871	return;
872	}
873	}
874
875	// Redirect for regular form submissions
876	wp_safe_redirect(admin_url('admin.php?page=mxchat-actions&updated=true'));
877	exit;
878	}
879
880	// ========================================
881	// HELPER METHODS
882	// ========================================
883
884	/**
885	* Returns a specific nonce action string
886	*/
887	private function mxchat_get_nonce_action() {
888	return 'mxchat_license_nonce';
889	}
890
891	/**
892	* Check API key status for all providers
893	*/
894	public function mxchat_check_api_keys() {
895	// Check nonce
896	if (!wp_verify_nonce($_POST['nonce'] ?? '', 'mxchat_save_setting_nonce')) {
897	wp_send_json_error('Invalid nonce');
898	}
899
900	// Check permissions
901	if (!current_user_can('manage_options')) {
902	wp_send_json_error('Unauthorized');
903	}
904
905	// Get current options
906	$options = get_option('mxchat_options', array());
907
908	// Check which API keys are present
909	$api_key_status = array(
910	'openai' => !empty($options['api_key']),
911	'claude' => !empty($options['claude_api_key']),
912	'xai' => !empty($options['xai_api_key']),
913	'deepseek' => !empty($options['deepseek_api_key']),
914	'gemini' => !empty($options['gemini_api_key']),
915	'openrouter' => !empty($options['openrouter_api_key']),
916	'voyage' => !empty($options['voyage_api_key'])
917	);
918
919	wp_send_json_success($api_key_status);
920	}
921
922	}
923
924	// Initialize the AJAX handler
925	new MxChat_Ajax_Handler();
926