extendify / app / Agent / Controllers / ChatHistoryController.php

ChatHistoryController.php in Extendify 2.2.0, at app/Agent/Controllers/ChatHistoryController.php

195 lines 5.8 KB

Raw Download Zip

1	<?php
2
3	/**
4	* Store info about messages/events from chat
5	*/
6
7	namespace Extendify\Agent\Controllers;
8
9	defined('ABSPATH') \|\| die('No direct access.');
10
11	use Extendify\Shared\Services\Sanitizer;
12
13	/**
14	* The controller
15	*/
16
17	class ChatHistoryController
18	{
19	/**
20	* Initialize the controller and set up the database table.
21	*
22	* @return \WP_REST_Response
23	*/
24	public static function init()
25	{
26	self::setupChatHistoryTable();
27	}
28
29	/**
30	* Get the last 150 messages
31	*
32	* @return array
33	*/
34	public static function getChatHistory($user_id = null)
35	{
36	global $wpdb;
37	$table = $wpdb->prefix . 'extendify_agent_events';
38	$user_id = $user_id ?: get_current_user_id();
39
40	$results = $wpdb->get_results(
41	$wpdb->prepare(
42	"SELECT * FROM $table WHERE user_id = %d ORDER BY id DESC LIMIT 150",
43	$user_id
44	),
45	ARRAY_A
46	);
47	return array_map(function ($item) {
48	return [
49	'id' => $item['event_id'],
50	'type' => $item['type'],
51	'details' => json_decode($item['details'], true),
52	];
53	}, $results);
54	}
55
56
57	/**
58	* Return the data
59	*
60	* @return \WP_REST_Response
61	*/
62	public static function get()
63	{
64	$messages = self::getChatHistory();
65	$state = ['state' => ['messages' => Sanitizer::sanitizeArray($messages)]];
66	return new \WP_REST_Response($state);
67	}
68
69	/**
70	* Persist the data
71	*
72	* @param \WP_REST_Request $request - The request.
73	* @return \WP_REST_Response
74	*/
75	public static function store($request)
76	{
77	global $wpdb;
78	$table = $wpdb->prefix . 'extendify_agent_events';
79	$user_id = get_current_user_id();
80
81	$state = $request->get_param('state');
82	$parsed = is_string($state) ? json_decode($state, true) : $state;
83	$messages = $parsed['state']['messages'] ?? [];
84
85	// Find the latest event and only add new messages since then.
86	$latest = $wpdb->get_var(
87	$wpdb->prepare(
88	"SELECT event_id FROM $table WHERE user_id = %d ORDER BY created_at DESC LIMIT 1",
89	$user_id
90	)
91	);
92	$startIndex = 0;
93	if ($latest) {
94	foreach ($messages as $i => $msg) {
95	if ($msg['id'] === $latest) {
96	$startIndex = $i + 1;
97	break;
98	}
99	}
100	}
101
102	$toInsert = array_slice($messages, $startIndex);
103	foreach ($toInsert as $msg) {
104	self::upsertEvent($msg, $user_id);
105	}
106
107	return self::get();
108	}
109
110	/**
111	* Upsert an event into the database.
112	*
113	* @param array $msg The message data.
114	* @param int $user_id The user ID.
115	* @return void
116	*/
117	private static function upsertEvent($msg, $user_id)
118	{
119	global $wpdb;
120	$table = $wpdb->prefix . 'extendify_agent_events';
121	$created_at = current_time('mysql');
122	$event_id = Sanitizer::sanitizeText($msg['id']);
123	$type = Sanitizer::sanitizeText($msg['type']);
124	$details = wp_json_encode(Sanitizer::sanitizeArray($msg['details']));
125
126	$sql = $wpdb->prepare(
127	"INSERT INTO $table (created_at, event_id, type, details, user_id)
128	VALUES (%s, %s, %s, %s, %d)
129	ON DUPLICATE KEY UPDATE
130	created_at = VALUES(created_at),
131	type = VALUES(type),
132	details = VALUES(details)",
133	$created_at,
134	$event_id,
135	$type,
136	$details,
137	$user_id
138	);
139	$wpdb->query($sql);
140	}
141
142	/**
143	* Ensures the custom table exists and is up to date for MySQL.
144	* Creates the table if missing, adds missing columns, and ensures an index on user_id.
145	*
146	* @return void
147	*/
148	private static function setupChatHistoryTable()
149	{
150	global $wpdb;
151	$table = $wpdb->prefix . 'extendify_agent_events';
152	$columns = [
153	'id' => "BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY",
154	'created_at' => "DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP",
155	'event_id' => "VARCHAR(64) NOT NULL",
156	'type' => "VARCHAR(64) NOT NULL",
157	'details' => "LONGTEXT",
158	'user_id' => "BIGINT UNSIGNED NOT NULL"
159	];
160
161	// Check if the table exists and create it if not
162	$exists = $wpdb->get_var("SHOW TABLES LIKE '$table'");
163	if (!$exists) {
164	$cols = [];
165	foreach ($columns as $name => $type) {
166	$cols[] = "$name $type";
167	}
168	$sql = "CREATE TABLE $table (" . implode(',', $cols) . ", INDEX(user_id))";
169	$sql .= " " . $wpdb->get_charset_collate() . ";";
170	$wpdb->query($sql);
171	return;
172	}
173
174	// Check existing columns and add missing ones
175	$existingCols = array_column($wpdb->get_results("SHOW COLUMNS FROM $table", ARRAY_A), 'Field');
176	foreach ($columns as $name => $type) {
177	if (!in_array($name, $existingCols, true)) {
178	$wpdb->query("ALTER TABLE $table ADD COLUMN $name $type");
179	}
180	}
181
182	// Unique index on (event_id, user_id)
183	$uniqueIndex = $wpdb->get_results("SHOW INDEX FROM $table WHERE Key_name = 'unique_event_id'", ARRAY_A);
184	if (empty($uniqueIndex)) {
185	$wpdb->query("CREATE UNIQUE INDEX unique_event_id ON $table(event_id, user_id)");
186	}
187
188	// Regular index on user_id
189	$userIndex = $wpdb->get_results("SHOW INDEX FROM $table WHERE Key_name = 'user_id'", ARRAY_A);
190	if (empty($userIndex)) {
191	$wpdb->query("CREATE INDEX user_id ON $table(user_id)");
192	}
193	}
194	}
195