<?php
header('Content-Type: application/json; charset=utf-8');

require_once __DIR__ . '/../config/database.php';
require_once __DIR__ . '/get_table_name.php';

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    http_response_code(405);
    echo json_encode([
        'status' => 'error',
        'message' => 'Method not allowed'
    ], JSON_UNESCAPED_UNICODE);
    exit;
}

$rawBody = file_get_contents('php://input');
$data = json_decode($rawBody, true);
if (!is_array($data)) {
    http_response_code(400);
    echo json_encode([
        'status' => 'error',
        'message' => 'Invalid JSON payload'
    ], JSON_UNESCAPED_UNICODE);
    exit;
}

$tableId = isset($data['tableId']) ? trim((string)$data['tableId']) : '';
$messageType = isset($data['messageType']) ? trim((string)$data['messageType']) : '';
$messageText = isset($data['messageText']) ? trim((string)$data['messageText']) : '';
$qrHash = isset($data['qrHash']) ? trim((string)$data['qrHash']) : '';

$allowedTypes = ['waiter_call', 'bill_request'];
if ($messageType === '' || !in_array($messageType, $allowedTypes, true)) {
    http_response_code(422);
    echo json_encode([
        'status' => 'error',
        'message' => 'Invalid messageType'
    ], JSON_UNESCAPED_UNICODE);
    exit;
}

if ($tableId === '' && $qrHash !== '' && isset($conn)) {
    $resolved = getTableNameByHash($conn, $qrHash);
    if ($resolved !== '') {
        $tableId = $resolved;
    }
}

if ($tableId === '') {
    http_response_code(422);
    echo json_encode([
        'status' => 'error',
        'message' => 'tableId is required'
    ], JSON_UNESCAPED_UNICODE);
    exit;
}

if ($messageText === '') {
    http_response_code(422);
    echo json_encode([
        'status' => 'error',
        'message' => 'messageText is required'
    ], JSON_UNESCAPED_UNICODE);
    exit;
}

if (strlen($tableId) > 32) {
    $tableId = substr($tableId, 0, 32);
}

try {
    $pdo = getAnalyticsPdo();
    $stmt = $pdo->prepare("
        INSERT INTO guest_action_queue (
            table_id,
            message_type,
            message_text,
            api_sent,
            status_kds,
            created_at
        ) VALUES (
            :table_id,
            :message_type,
            :message_text,
            0,
            0,
            NOW(3)
        )
    ");

    $stmt->execute([
        ':table_id' => $tableId,
        ':message_type' => $messageType,
        ':message_text' => $messageText,
    ]);

    echo json_encode([
        'status' => 'success',
        'id' => (int)$pdo->lastInsertId()
    ], JSON_UNESCAPED_UNICODE);
} catch (Throwable $e) {
    http_response_code(500);
    echo json_encode([
        'status' => 'error',
        'message' => 'Queue insert failed'
    ], JSON_UNESCAPED_UNICODE);
}