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

class-ajax-handler.php in MxChat – AI Chatbot & Content Generation for WordPress 2.5.9, 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	$allowed_models = array(
92	'gemini-2.0-flash', 'gemini-2.0-flash-lite', 'gemini-1.5-pro', 'gemini-1.5-flash',
93	'grok-4-0709', 'grok-4-1-fast-reasoning', 'grok-4-1-fast-non-reasoning', 'grok-3-beta', 'grok-3-fast-beta', 'grok-3-mini-beta',
94	'grok-3-mini-fast-beta', 'grok-2',
95	'deepseek-chat',
96	'claude-sonnet-4-5-20250929', 'claude-opus-4-1-20250805', 'claude-haiku-4-5-20251001',
97	'claude-opus-4-20250514', 'claude-sonnet-4-20250514', 'claude-3-7-sonnet-20250219',
98	'claude-3-5-sonnet-20241022', 'claude-3-opus-20240229', 'claude-3-sonnet-20240229',
99	'claude-3-haiku-20240307',
100	'gpt-5.1-2025-11-13', 'gpt-5', 'gpt-5-mini', 'gpt-5-nano', 'gpt-4.1-2025-04-14',
101	'gpt-4o', 'gpt-4o-mini', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo',
102	);
103
104	//error_log('MXChat Save: in_array result: ' . (in_array($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' \|\| $value === '1') ? 'on' : 'off';
197	break;
198	default:
199	// First check for rate limits settings
200	if (strpos($name, 'mxchat_options[rate_limits]') !== false) {
201	//error_log('MXChat Save: Detected rate_limits field: ' . $name);
202
203	// Extract role ID and setting from the name
204	preg_match('/\[rate_limits\]\[(.?)\]\[(.?)\]/', $name, $matches);
205	//error_log('MXChat Save: Regex matches: ' . print_r($matches, true));
206
207	if (isset($matches[1]) && isset($matches[2])) {
208	$role_id = $matches[1];
209	$setting_key = $matches[2]; // limit, timeframe, or message
210
211	//error_log('MXChat Save: Role ID = ' . $role_id . ', Setting Key = ' . $setting_key);
212
213	// Initialize rate_limits if it doesn't exist
214	if (!isset($options['rate_limits'])) {
215	// //error_log('MXChat Save: Initializing rate_limits array');
216	$options['rate_limits'] = [];
217	}
218
219	// Initialize role settings if it doesn't exist
220	if (!isset($options['rate_limits'][$role_id])) {
221	//error_log('MXChat Save: Initializing rate_limits for role: ' . $role_id);
222	$options['rate_limits'][$role_id] = [
223	'limit' => ($role_id === 'logged_out') ? '10' : '100',
224	'timeframe' => 'daily',
225	'message' => 'Rate limit exceeded. Please try again later.'
226	];
227	}
228
229	// Update the specific setting
230	$options['rate_limits'][$role_id][$setting_key] = $value;
231	//error_log('MXChat Save: Updated rate_limits[' . $role_id . '][' . $setting_key . '] = ' . $value);
232	} else {
233	//error_log('MXChat Save: Failed to parse rate_limits pattern: ' . $name);
234	}
235	}
236	// Then check for role rate limits (old format)
237	else if (strpos($name, 'mxchat_options[role_rate_limits]') !== false) {
238	//error_log('MXChat Save: Processing role_rate_limits field: ' . $name);
239	// Extract role ID from the name
240	preg_match('/\[role_rate_limits\]\[(.*?)\]/', $name, $matches);
241	//error_log('MXChat Save: Regex matches: ' . print_r($matches, true));
242
243	if (isset($matches[1])) {
244	$role_id = $matches[1];
245	// Initialize role_rate_limits if it doesn't exist
246	if (!isset($options['role_rate_limits'])) {
247	//error_log('MXChat Save: Initializing role_rate_limits array');
248	$options['role_rate_limits'] = [];
249	}
250	// Update the specific role's rate limit
251	$options['role_rate_limits'][$role_id] = sanitize_text_field($value);
252	//error_log('MXChat Save: Updated role_rate_limits[' . $role_id . '] = ' . $value);
253	} else {
254	//error_log('MXChat Save: Failed to parse role_rate_limits pattern: ' . $name);
255	}
256	}
257	// Handle toggles
258	else if (strpos($name, 'toggle') !== false \|\| in_array($name, [
259	'chat_persistence_toggle',
260	'privacy_toggle',
261	'complianz_toggle',
262	'chat_toolbar_toggle',
263	'show_pdf_upload_button',
264	'show_word_upload_button',
265	'enable_streaming_toggle',
266	'contextual_awareness_toggle',
267	'enable_email_block',
268	'enable_name_field'
269	])) {
270	//error_log('MXChat Save: Processing toggle: ' . $name);
271	$options[$name] = ($value === 'on') ? 'on' : 'off';
272	} else {
273	//error_log('MXChat Save: Processing standard field: ' . $name);
274	// Store all other values directly
275	$options[$name] = $value;
276	}
277	break;
278	}
279
280	// Save all updates to the options array
281	$updated = update_option('mxchat_options', $options);
282	//error_log('MXChat Save: Update result: ' . ($updated ? 'success' : 'unchanged') . ' for field: ' . $name);
283	//error_log('MXChat Save: Updated options array: ' . print_r($options, true));
284
285	// Always return success even if WordPress says nothing changed
286	// (which happens when the value is the same as before)
287	wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
288	}
289
290	/**
291	* Save the selected bot for knowledge base operations
292	*/
293	public function mxchat_save_selected_bot() {
294	// Check nonce
295	if (!wp_verify_nonce($_POST['nonce'] ?? '', 'mxchat_save_setting_nonce')) {
296	wp_send_json_error('Invalid nonce');
297	}
298
299	// Check permissions
300	if (!current_user_can('manage_options')) {
301	wp_send_json_error('Unauthorized');
302	}
303
304	$bot_id = isset($_POST['bot_id']) ? sanitize_key($_POST['bot_id']) : 'default';
305
306	// Save as user meta for the current user
307	$user_id = get_current_user_id();
308	update_user_meta($user_id, 'mxchat_selected_knowledge_bot', $bot_id);
309
310	// Also save as an option for site-wide default
311	update_option('mxchat_current_knowledge_bot', $bot_id);
312
313	// No cache clearing needed since we removed caching
314
315	wp_send_json_success(array(
316	'message' => 'Bot selection saved',
317	'bot_id' => $bot_id
318	));
319	}
320
321	/**
322	* Handles AJAX request for saving chat settings
323	*/
324	public function mxchat_save_prompts_setting_callback() {
325	check_ajax_referer('mxchat_prompts_setting_nonce');
326
327	if (!current_user_can('manage_options')) {
328	wp_send_json_error(['message' => esc_html__('Unauthorized', 'mxchat')]);
329	}
330
331	$name = isset($_POST['name']) ? $_POST['name'] : '';
332	$value = isset($_POST['value']) ? stripslashes($_POST['value']) : '';
333
334	//error_log('[MXCHAT-PROMPTS] Saving setting: ' . $name . ' = ' . $value);
335
336	if (empty($name)) {
337	wp_send_json_error(['message' => esc_html__('Invalid field name', 'mxchat')]);
338	}
339
340	// Handle Pinecone settings - BYPASS WORDPRESS SANITIZATION
341	if (strpos($name, 'mxchat_pinecone_addon_options') !== false) {
342	//error_log('[MXCHAT-PROMPTS] Processing Pinecone setting: ' . $name);
343
344	// Extract the field name
345	if (preg_match('/mxchat_pinecone_addon_options\[([^\]]+)\]/', $name, $matches)) {
346	$field_name = $matches[1];
347	//error_log('[MXCHAT-PROMPTS] Extracted field name: ' . $field_name);
348
349	// Get current options directly from database - NO WordPress filters
350	global $wpdb;
351	$current_options_raw = $wpdb->get_var(
352	$wpdb->prepare(
353	"SELECT option_value FROM {$wpdb->options} WHERE option_name = %s",
354	'mxchat_pinecone_addon_options'
355	)
356	);
357
358	// FIX: Handle the case where the option doesn't exist yet
359	if ($current_options_raw === null) {
360	// Option doesn't exist, create it with default values
361	$current_options = array(
362	'mxchat_use_pinecone' => '0',
363	'mxchat_pinecone_api_key' => '',
364	'mxchat_pinecone_host' => '',
365	'mxchat_pinecone_index' => '',
366	'mxchat_pinecone_environment' => ''
367	);
368	//error_log('[MXCHAT-PROMPTS] Option does not exist, creating with defaults');
369	} else {
370	// Unserialize the raw data
371	$current_options = maybe_unserialize($current_options_raw);
372	if (!is_array($current_options)) {
373	// Fallback to defaults if unserialization fails
374	$current_options = array(
375	'mxchat_use_pinecone' => '0',
376	'mxchat_pinecone_api_key' => '',
377	'mxchat_pinecone_host' => '',
378	'mxchat_pinecone_index' => '',
379	'mxchat_pinecone_environment' => ''
380	);
381	//error_log('[MXCHAT-PROMPTS] Failed to unserialize, using defaults');
382	}
383	}
384
385	//error_log('[MXCHAT-PROMPTS] Current options from DB: ' . print_r($current_options, true));
386
387	// Update the specific field with proper sanitization
388	switch ($field_name) {
389	case 'mxchat_use_pinecone':
390	$new_value = ($value === '1') ? '1' : '0';
391	break;
392	case 'mxchat_pinecone_api_key':
393	case 'mxchat_pinecone_host':
394	case 'mxchat_pinecone_index':
395	case 'mxchat_pinecone_environment':
396	$new_value = sanitize_text_field($value);
397	if ($field_name === 'mxchat_pinecone_host') {
398	$new_value = str_replace(['https://', 'http://'], '', $new_value);
399	}
400	break;
401	default:
402	wp_send_json_error(['message' => esc_html__('Unknown Pinecone field', 'mxchat')]);
403	}
404
405	$current_options[$field_name] = $new_value;
406	//error_log('[MXCHAT-PROMPTS] New value for ' . $field_name . ': "' . $new_value . '"');
407	//error_log('[MXCHAT-PROMPTS] Updated options: ' . print_r($current_options, true));
408
409	// Save directly to database to bypass WordPress sanitization
410	$serialized_options = maybe_serialize($current_options);
411
412	// FIX: Use INSERT ... ON DUPLICATE KEY UPDATE or separate INSERT/UPDATE logic
413	$option_exists = $wpdb->get_var(
414	$wpdb->prepare(
415	"SELECT COUNT(*) FROM {$wpdb->options} WHERE option_name = %s",
416	'mxchat_pinecone_addon_options'
417	)
418	);
419
420	if ($option_exists > 0) {
421	// Update existing option
422	$save_result = $wpdb->update(
423	$wpdb->options,
424	array('option_value' => $serialized_options),
425	array('option_name' => 'mxchat_pinecone_addon_options'),
426	array('%s'),
427	array('%s')
428	);
429	//error_log('[MXCHAT-PROMPTS] Updated existing option, result: ' . ($save_result !== false ? 'SUCCESS' : 'FAILED'));
430	} else {
431	// Insert new option
432	$save_result = $wpdb->insert(
433	$wpdb->options,
434	array(
435	'option_name' => 'mxchat_pinecone_addon_options',
436	'option_value' => $serialized_options,
437	'autoload' => 'yes'
438	),
439	array('%s', '%s', '%s')
440	);
441	//error_log('[MXCHAT-PROMPTS] Inserted new option, result: ' . ($save_result !== false ? 'SUCCESS' : 'FAILED'));
442	}
443
444	// Clear any WordPress option cache to ensure get_option() returns fresh data
445	wp_cache_delete('mxchat_pinecone_addon_options', 'options');
446
447	// IMPROVED VERIFICATION - Check if the database operation succeeded
448	if ($save_result !== false) {
449	// Double-check by reading fresh from database
450	$verification_raw = $wpdb->get_var(
451	$wpdb->prepare(
452	"SELECT option_value FROM {$wpdb->options} WHERE option_name = %s",
453	'mxchat_pinecone_addon_options'
454	)
455	);
456	$verification_options = maybe_unserialize($verification_raw);
457	$verified_value = isset($verification_options[$field_name]) ? $verification_options[$field_name] : 'NOT_FOUND';
458
459	//error_log('[MXCHAT-PROMPTS] Final verification - Expected: "' . $new_value . '", Got: "' . $verified_value . '"');
460
461	// Use loose comparison (==) instead of strict (===) to avoid type issues
462	if ($verified_value == $new_value \|\| $save_result > 0) {
463	wp_send_json_success(['message' => esc_html__('Pinecone setting saved', 'mxchat')]);
464	} else {
465	// Still return success if the DB operation worked, even if verification is quirky
466	//error_log('[MXCHAT-PROMPTS] Verification mismatch but DB operation succeeded');
467	wp_send_json_success(['message' => esc_html__('Pinecone setting saved (DB success)', 'mxchat')]);
468	}
469	} else {
470	wp_send_json_error(['message' => esc_html__('Database save failed', 'mxchat')]);
471	}
472	} else {
473	wp_send_json_error(['message' => esc_html__('Invalid field name format', 'mxchat')]);
474	}
475
476	return; // Exit here for Pinecone settings
477	}
478	// Handle auto-sync settings (existing functionality)
479	if (strpos($name, 'mxchat_auto_sync_') === 0) {
480	$value = ($value === 'on' \|\| $value === '1') ? '1' : '0';
481	$updated = update_option($name, $value);
482
483	if ($updated \|\| get_option($name) === $value) {
484	wp_send_json_success(['message' => esc_html__('Auto-sync setting saved', 'mxchat')]);
485	} else {
486	wp_send_json_error(['message' => esc_html__('No changes detected', 'mxchat')]);
487	}
488	}
489
490	// Handle other prompts options
491	$options = get_option('mxchat_prompts_options', []);
492	$options[$name] = $value;
493	$updated = update_option('mxchat_prompts_options', $options);
494
495	if ($updated) {
496	wp_send_json_success(['message' => esc_html__('Setting saved', 'mxchat')]);
497	} else {
498	wp_send_json_error(['message' => esc_html__('No changes detected', 'mxchat')]);
499	}
500	}
501
502
503	/**
504	* Handles AJAX request for Pinecone settings migration
505	*/
506	public function ajax_migrate_pinecone_settings() {
507	// Verify nonce
508	if (!wp_verify_nonce($_POST['_ajax_nonce'] ?? '', 'mxchat_save_setting_nonce')) {
509	wp_send_json_error('Invalid nonce');
510	}
511
512	// Check permissions
513	if (!current_user_can('manage_options')) {
514	wp_send_json_error('Unauthorized access');
515	}
516
517	// Check if old Pinecone addon options exist
518	$old_options = get_option('mxchat_pinecone_addon_options', array());
519
520	if (empty($old_options)) {
521	wp_send_json_success(array('migrated' => false, 'message' => 'No old settings found'));
522	}
523
524	// Get current core plugin options
525	$current_options = get_option('mxchat_pinecone_addon_options', array());
526
527	// Only migrate if core options are empty or if explicitly requested
528	$should_migrate = empty($current_options) \|\|
529	(empty($current_options['mxchat_pinecone_api_key']) && !empty($old_options['mxchat_pinecone_api_key']));
530
531	if ($should_migrate) {
532	// Migrate settings with proper sanitization
533	$migrated_options = array(
534	'mxchat_use_pinecone' => $old_options['mxchat_use_pinecone'] ?? '0',
535	'mxchat_pinecone_api_key' => sanitize_text_field($old_options['mxchat_pinecone_api_key'] ?? ''),
536	'mxchat_pinecone_host' => sanitize_text_field($old_options['mxchat_pinecone_host'] ?? ''),
537	'mxchat_pinecone_index' => sanitize_text_field($old_options['mxchat_pinecone_index'] ?? ''),
538	'mxchat_pinecone_environment' => sanitize_text_field($old_options['mxchat_pinecone_environment'] ?? '')
539	);
540
541	update_option('mxchat_pinecone_addon_options', $migrated_options);
542
543	wp_send_json_success(array(
544	'migrated' => true,
545	'message' => 'Settings migrated successfully from Pinecone add-on'
546	));
547	} else {
548	wp_send_json_success(array(
549	'migrated' => false,
550	'message' => 'Settings already exist in core plugin'
551	));
552	}
553	}
554
555
556	// ========================================
557	// LICENSE AJAX HANDLERS
558	// ========================================
559
560	/**
561	* Validates and activates chat license via AJAX
562	*/
563	public function mxchat_handle_activate_license() {
564	// Check nonce
565	if (!check_ajax_referer('mxchat_activate_license_nonce', 'security', false)) {
566	wp_send_json_error(esc_html__('Invalid security token', 'mxchat'));
567	return;
568	}
569
570	// Verify user capabilities
571	if (!current_user_can('manage_options')) {
572	wp_send_json_error(esc_html__('Unauthorized access', 'mxchat'));
573	return;
574	}
575
576	$license_key = isset($_POST['mxchat_activation_key']) ? sanitize_text_field($_POST['mxchat_activation_key']) : '';
577	$customer_email = isset($_POST['mxchat_pro_email']) ? sanitize_email($_POST['mxchat_pro_email']) : '';
578
579	if (empty($license_key) \|\| empty($customer_email)) {
580	wp_send_json_error(esc_html__('Email or License Key is missing', 'mxchat'));
581	return;
582	}
583
584	$product_id = 'MxChatPRO';
585	$domain = parse_url(home_url(), PHP_URL_HOST); // Get the current domain
586
587	// Call WooCommerce Software API for activation (not just validation)
588	$response = wp_remote_get(
589	add_query_arg(
590	array(
591	'wc-api' => 'software-api',
592	'request' => 'activation',
593	'email' => $customer_email,
594	'license_key' => $license_key,
595	'product_id' => $product_id,
596	'instance' => $domain, // THIS IS KEY - include the domain as instance
597	'platform' => 'wordpress' // Optional but good to include
598	),
599	'https://mxchat.ai/'
600	),
601	array(
602	'timeout' => 60,
603	'sslverify' => true
604	)
605	);
606
607	if (is_wp_error($response)) {
608	$error_message = $response->get_error_message();
609	//error_log('MxChat License Activation Error: ' . $error_message);
610	wp_send_json_error(esc_html__('Activation failed due to a server error: ', 'mxchat') . $error_message);
611	return;
612	}
613
614	$response_code = wp_remote_retrieve_response_code($response);
615	$body = wp_remote_retrieve_body($response);
616
617	// Log response for debugging
618	//error_log('MxChat License Response Code: ' . $response_code);
619	//error_log('MxChat License Response Body: ' . $body);
620
621	if ($response_code !== 200) {
622	wp_send_json_error(esc_html__('Server returned error code: ', 'mxchat') . $response_code);
623	return;
624	}
625
626	$data = json_decode($body);
627
628	if ($data && isset($data->activated) && $data->activated) {
629	// Success - save local options
630	update_option('mxchat_license_status', 'active');
631	update_option('mxchat_pro_email', $customer_email);
632	update_option('mxchat_activation_key', $license_key);
633	delete_option('mxchat_license_error');
634
635	// Also track on your website (this is your existing domain tracking)
636	$this->track_domain_on_website($license_key, $customer_email, $domain);
637
638	wp_send_json_success(array('message' => esc_html__('License activated successfully', 'mxchat')));
639	} else {
640	$error_message = isset($data->error) ? $data->error : esc_html__('Activation failed', 'mxchat');
641	update_option('mxchat_license_status', 'inactive');
642	update_option('mxchat_license_error', $error_message);
643
644	//error_log('MxChat Activation failed: ' . $error_message);
645	wp_send_json_error($error_message);
646	}
647	}
648
649	/**
650	* Track domain on your website (separate from WooCommerce activation)
651	*/
652	private function track_domain_on_website($license_key, $email, $domain) {
653	// This calls your website's tracking API
654	wp_remote_post('https://mxchat.ai/mxchat-api/activate-license', array(
655	'body' => array(
656	'mxchat_pro_email' => $email,
657	'mxchat_activation_key' => $license_key,
658	'domain' => $domain
659	),
660	'timeout' => 10,
661	'sslverify' => true
662	));
663	}
664
665	/**
666	* Validates license via AJAX with email and key
667	*/
668	public function mxchat_check_license_status() {
669	// Verify nonce
670	if (!check_ajax_referer('mxchat_activate_license_nonce', 'security', false)) {
671	wp_send_json_error('Security check failed');
672	return;
673	}
674
675	// Add isset checks for safety
676	$email = isset($_POST['email']) ? sanitize_email($_POST['email']) : '';
677	$key = isset($_POST['key']) ? sanitize_text_field($_POST['key']) : '';
678
679	// Check if this license is actually active in your system
680	$is_active = (get_option('mxchat_license_status') === 'active' &&
681	get_option('mxchat_pro_email') === $email &&
682	get_option('mxchat_activation_key') === $key);
683
684	wp_send_json(array(
685	'is_active' => $is_active
686	));
687	}
688
689	/**
690	* Handle license deactivation - Complete version for plugin
691	*/
692	function mxchat_deactivate_license() {
693	// Add debugging
694	//error_log('MxChat deactivate function called');
695
696	// Check nonce
697	if (!check_ajax_referer('mxchat_activate_license_nonce', 'security', false)) {
698	//error_log('MxChat deactivate: Nonce check failed');
699	wp_send_json_error('Security check failed.');
700	return;
701	}
702
703	//error_log('MxChat deactivate: Nonce check passed');
704
705	$license_key = get_option('mxchat_activation_key');
706	$email = get_option('mxchat_pro_email');
707	$domain = parse_url(home_url(), PHP_URL_HOST);
708
709	//error_log('MxChat deactivate: License: ' . $license_key . ', Email: ' . $email . ', Domain: ' . $domain);
710
711	if (empty($license_key) \|\| empty($email)) {
712	//error_log('MxChat deactivate: No active license found');
713	wp_send_json_error('No active license found.');
714	return;
715	}
716
717	// Clear local license data first
718	delete_option('mxchat_license_status');
719	delete_option('mxchat_pro_email');
720	delete_option('mxchat_activation_key');
721	delete_option('mxchat_license_error');
722
723	//error_log('MxChat deactivate: Local data cleared');
724
725	// Notify your website's API to properly deactivate
726	$response = wp_remote_post('https://mxchat.ai/mxchat-api/deactivate-license', array(
727	'body' => array(
728	'license_key' => $license_key,
729	'email' => $email,
730	'domain' => $domain
731	),
732	'timeout' => 15,
733	'sslverify' => true
734	));
735
736	if (is_wp_error($response)) {
737	//error_log('MxChat deactivate: Server error - ' . $response->get_error_message());
738	wp_send_json_success(array(
739	'message' => 'License deactivated locally. Server could not be contacted to free activation slot.',
740	'server_notified' => false
741	));
742	return;
743	}
744
745	$response_body = wp_remote_retrieve_body($response);
746	$response_data = json_decode($response_body, true);
747
748	//error_log('MxChat deactivate: Server response - ' . $response_body);
749
750	if (isset($response_data['success']) && $response_data['success']) {
751	//error_log('MxChat deactivate: Success with server notification');
752	wp_send_json_success(array(
753	'message' => 'License deactivated successfully. Activation slot has been freed up.',
754	'server_notified' => true
755	));
756	} else {
757	//error_log('MxChat deactivate: Server responded but deactivation may have failed');
758	wp_send_json_success(array(
759	'message' => 'License deactivated locally. Please check your account dashboard to verify the activation was freed.',
760	'server_notified' => false
761	));
762	}
763	}
764
765
766	// ========================================
767	// ACTIONS & INTENTS AJAX HANDLERS
768	// ========================================
769
770	/**
771	* Validates nonce and returns JSON error on failure
772	*/
773	public function mxchat_toggle_action() {
774	// Check nonce
775	if (!isset($_POST['nonce']) \|\| !wp_verify_nonce($_POST['nonce'], 'mxchat_actions_nonce')) {
776	wp_send_json_error(array('message' => 'Security check failed'));
777	return;
778	}
779
780	// Check permissions
781	if (!current_user_can('manage_options')) {
782	wp_send_json_error(array('message' => 'Permission denied'));
783	return;
784	}
785
786	// Validate params
787	$intent_id = isset($_POST['intent_id']) ? intval($_POST['intent_id']) : 0;
788	$enabled = isset($_POST['enabled']) ? (bool)$_POST['enabled'] : false;
789
790	if (!$intent_id) {
791	wp_send_json_error(array('message' => 'Invalid action ID'));
792	return;
793	}
794
795	// Update the intent/action status in the database
796	global $wpdb;
797	$table_name = $wpdb->prefix . 'mxchat_intents';
798
799	// Using the 'enabled' field - add this field if it doesn't exist
800	$result = $wpdb->update(
801	$table_name,
802	array('enabled' => $enabled ? 1 : 0),
803	array('id' => $intent_id),
804	array('%d'),
805	array('%d')
806	);
807
808	if ($result === false) {
809	wp_send_json_error(array('message' => 'Database error'));
810	return;
811	}
812
813	wp_send_json_success();
814	}
815
816
817	/**
818	* Validates permissions for AJAX request handling
819	*/
820	public function mxchat_update_intent_threshold() {
821	// Check permissions
822	if (!current_user_can('manage_options')) {
823	if (wp_doing_ajax()) {
824	wp_send_json_error(array('message' => 'Unauthorized user'));
825	return;
826	}
827	wp_die(esc_html__('Unauthorized user', 'mxchat'));
828	}
829
830	// Verify nonce
831	check_admin_referer('mxchat_update_intent_threshold_nonce');
832
833	// Process the update if we have valid data
834	if (isset($_POST['intent_id'], $_POST['intent_threshold'])) {
835	global $wpdb;
836	$table_name = $wpdb->prefix . 'mxchat_intents';
837	$intent_id = intval($_POST['intent_id']);
838	$threshold_percentage = max(70, min(95, intval($_POST['intent_threshold'])));
839	$similarity_threshold = $threshold_percentage / 100;
840
841	$result = $wpdb->update(
842	$table_name,
843	['similarity_threshold' => $similarity_threshold],
844	['id' => $intent_id],
845	['%f'],
846	['%d']
847	);
848
849	// Handle AJAX requests
850	if (wp_doing_ajax()) {
851	if ($result === false) {
852	wp_send_json_error(array('message' => 'Failed to update threshold'));
853	} else {
854	wp_send_json_success(array('threshold' => $threshold_percentage));
855	}
856	return;
857	}
858	}
859
860	// Redirect for regular form submissions
861	wp_safe_redirect(admin_url('admin.php?page=mxchat-actions&updated=true'));
862	exit;
863	}
864
865	// ========================================
866	// HELPER METHODS
867	// ========================================
868
869	/**
870	* Returns a specific nonce action string
871	*/
872	private function mxchat_get_nonce_action() {
873	return 'mxchat_license_nonce';
874	}
875
876	/**
877	* Check API key status for all providers
878	*/
879	public function mxchat_check_api_keys() {
880	// Check nonce
881	if (!wp_verify_nonce($_POST['nonce'] ?? '', 'mxchat_save_setting_nonce')) {
882	wp_send_json_error('Invalid nonce');
883	}
884
885	// Check permissions
886	if (!current_user_can('manage_options')) {
887	wp_send_json_error('Unauthorized');
888	}
889
890	// Get current options
891	$options = get_option('mxchat_options', array());
892
893	// Check which API keys are present
894	$api_key_status = array(
895	'openai' => !empty($options['api_key']),
896	'claude' => !empty($options['claude_api_key']),
897	'xai' => !empty($options['xai_api_key']),
898	'deepseek' => !empty($options['deepseek_api_key']),
899	'gemini' => !empty($options['gemini_api_key']),
900	'openrouter' => !empty($options['openrouter_api_key']),
901	'voyage' => !empty($options['voyage_api_key'])
902	);
903
904	wp_send_json_success($api_key_status);
905	}
906
907	}
908
909	// Initialize the AJAX handler
910	new MxChat_Ajax_Handler();
911