Commit inicial con archivos existentes

admin/get_user_groups.php

@@ -0,0 +1,45 @@
+<?php
+require_once __DIR__ . '/../includes/session_check.php';
+require_once __DIR__ . '/../includes/db.php';
+
+header('Content-Type: application/json');
+
+// Admin-only access
+if ($_SESSION['role'] !== 'admin') {
+    echo json_encode(['error' => 'Unauthorized']);
+    exit();
+}
+
+$recipientId = $_GET['recipient_id'] ?? null;
+
+if (!$recipientId) {
+    echo json_encode(['error' => 'Recipient ID missing']);
+    exit();
+}
+
+try {
+    // Obtener el nombre del usuario
+    $stmt = $pdo->prepare("SELECT name FROM recipients WHERE id = ?");
+    $stmt->execute([$recipientId]);
+    $userName = $stmt->fetchColumn();
+
+    // Obtener los grupos a los que pertenece el usuario
+    $stmt = $pdo->prepare("
+        SELECT tgm.chat_id, r.name as group_name
+        FROM telegram_group_members tgm
+        JOIN recipients r ON tgm.chat_id = r.platform_id AND r.platform = 'telegram' AND r.type = 'channel'
+        WHERE tgm.recipient_id = ?
+    ");
+    $stmt->execute([$recipientId]);
+    $groups = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+    echo json_encode(['success' => true, 'userName' => $userName, 'groups' => $groups]);
+
+} catch (PDOException $e) {
+    error_log("Error fetching user groups: " . $e->getMessage());
+    echo json_encode(['error' => 'Database error']);
+} catch (Exception $e) {
+    error_log("Error: " . $e->getMessage());
+    echo json_encode(['error' => 'Server error']);
+}
+?>