<?php
require __DIR__ . "/../config/connect.php";
require __DIR__ . "/../config/encrypt.php";

header('Content-Type: application/json');

$id = $_GET['id'] ?? null;
if (!$id) {
    echo json_encode(['error' => 'Parameter kosong']);
    exit;
}

// Dekripsi dan parsing
$datadecrypt = decrypt_url($id);
$dataurl     = json_decode($datadecrypt, true);

$ids    = $dataurl[0] ?? null; // hasilnya: "2,3,4,7"
$filter = $dataurl[1] ?? null; // hasilnya: "informasi"

if (!$ids) {
    echo json_encode(['error' => 'Parameter tidak boleh kosong']);
    exit;
}

// Ubah string ID jadi array angka
$idArray = array_map('intval', explode(',', $ids));

// Buat placeholder dinamis
$placeholders = implode(',', array_fill(0, count($idArray), '?'));

// Query database
$sql = "SELECT * FROM whatsapp_cloud_api WHERE id_data_server IN ($placeholders) LIMIT 1";
$stmt3 = $pdo->prepare($sql);
$stmt3->execute($idArray);
$wacapi = $stmt3->fetch(PDO::FETCH_ASSOC);

if (!$wacapi) {
    echo json_encode(['error' => 'Data API WhatsApp Cloud tidak ditemukan.']);
    exit;
}

// Ambil token dan ID
$accessToken   = $wacapi['token_access'];
$phoneNumberId = $wacapi['waba_id'];

// Panggil API WhatsApp
$url = "https://graph.facebook.com/v17.0/$phoneNumberId/message_templates";
$ch = curl_init();
curl_setopt_array($ch, [
    CURLOPT_URL => $url,
    CURLOPT_HTTPHEADER => ["Authorization: Bearer $accessToken"],
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_TIMEOUT => 15
]);
$response = curl_exec($ch);
if (curl_errno($ch)) {
    echo json_encode(['error' => curl_error($ch)]);
    exit;
}
curl_close($ch);

// Decode hasil API
$data = json_decode($response, true);
if (!isset($data['data'])) {
    echo json_encode(['error' => 'Tidak ada data template ditemukan.']);
    exit;
}

// Filter hanya template dengan awalan "informasi_"
$templates = array_values(array_filter($data['data'], function ($tpl) {
    return isset($tpl['name']) && strpos($tpl['name'], 'informasi_') === 0;
}));

// Kirim hasil JSON ke fetch
echo json_encode(['templates' => $templates], JSON_UNESCAPED_UNICODE);