<?php
declare(strict_types=1);
require_once __DIR__ . '/../includes/bootstrap.php';

header('Content-Type: application/json');

$twilioId = (int)($_GET['twilio_number_id'] ?? 0);
if ($twilioId <= 0) {
    echo json_encode(['items' => []]);
    exit;
}

$stmt = db()->prepare("
    SELECT c.id, ct.name, ct.phone,
           m.body AS last_message,
           c.last_message_at AS last_time
    FROM conversations c
    JOIN contacts ct ON ct.id = c.contact_id
    LEFT JOIN messages m ON m.id = (
        SELECT id FROM messages
        WHERE conversation_id = c.id
        ORDER BY created_at DESC
        LIMIT 1
    )
    WHERE c.twilio_number_id = :twilio
    ORDER BY c.last_message_at DESC, c.created_at DESC
");
$stmt->bindValue(':twilio', $twilioId, PDO::PARAM_INT);
$stmt->execute();
$items = $stmt->fetchAll();

echo json_encode(['items' => $items]);