Add Telegram Bot webhook integration

src/Helpers/SessionHelper.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace App\Helpers;
+
+class SessionHelper
+{
+    private static $sessionFile;
+
+    private static function getSessionFile()
+    {
+        if (self::$sessionFile === null) {
+            $storageDir = __DIR__ . "/../../storage";
+            if (!file_exists($storageDir)) {
+                mkdir($storageDir, 0777, true);
+            }
+            self::$sessionFile = $storageDir . "/telegram_sessions.json";
+        }
+        return self::$sessionFile;
+    }
+
+    /**
+     * Load all sessions
+     */
+    public static function loadSessions()
+    {
+        $file = self::getSessionFile();
+        
+        if (!file_exists($file)) {
+            file_put_contents($file, json_encode(["sessions" => []], JSON_PRETTY_PRINT));
+        }
+
+        $json = json_decode(file_get_contents($file), true);
+        return $json["sessions"] ?? [];
+    }
+
+    /**
+     * Save all sessions
+     */
+    public static function saveSessions($sessions)
+    {
+        $file = self::getSessionFile();
+        file_put_contents($file, json_encode(["sessions" => $sessions], JSON_PRETTY_PRINT));
+    }
+
+    /**
+     * Get session for a chat ID
+     */
+    public static function getSession($chatId)
+    {
+        $sessions = self::loadSessions();
+        return $sessions[$chatId] ?? null;
+    }
+
+    /**
+     * Set session for a chat ID
+     */
+    public static function setSession($chatId, $value)
+    {
+        $sessions = self::loadSessions();
+        $sessions[$chatId] = $value;
+        self::saveSessions($sessions);
+    }
+
+    /**
+     * Clear session for a chat ID
+     */
+    public static function clearSession($chatId)
+    {
+        $sessions = self::loadSessions();
+        unset($sessions[$chatId]);
+        self::saveSessions($sessions);
+    }
+}