<?php

declare(strict_types=1);

require dirname(__DIR__) . '/vendor/autoload.php';

$dotenv = Dotenv\Dotenv::createImmutable(dirname(__DIR__));
$dotenv->safeLoad();

$projectRoot = dirname(__DIR__, 2);
$manifestPath = $projectRoot . '/user-app/src/manifest.json';

$dsn = sprintf(
    'mysql:host=%s;port=%s;dbname=%s;charset=%s',
    $_ENV['DB_HOST'] ?? '127.0.0.1',
    $_ENV['DB_PORT'] ?? '3306',
    $_ENV['DB_DATABASE'] ?? '',
    $_ENV['DB_CHARSET'] ?? 'utf8mb4'
);

try {
    $pdo = new PDO(
        $dsn,
        $_ENV['DB_USERNAME'] ?? '',
        $_ENV['DB_PASSWORD'] ?? '',
        [
            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
        ]
    );

    $configRows = $pdo->query("SELECT config_group, config_key, config_value FROM system_configs")->fetchAll();
    $configMap = [];
    foreach ($configRows as $row) {
        $configMap[$row['config_group'] . '.' . $row['config_key']] = (string)($row['config_value'] ?? '');
    }

    $miniProgramAppId = trim($configMap['mini_program.app_id'] ?? '');
    if ($miniProgramAppId === '') {
        throw new RuntimeException('后台系统配置 mini_program.app_id 为空，无法同步到 user-app manifest。');
    }

    $manifestContent = @file_get_contents($manifestPath);
    if ($manifestContent === false) {
        throw new RuntimeException('无法读取 user-app/src/manifest.json。');
    }

    $pattern = '/("mp-weixin"\s*:\s*\{.*?"appid"\s*:\s*")([^"]*)(")/s';
    if (!preg_match($pattern, $manifestContent)) {
        throw new RuntimeException('未在 manifest.json 中找到 mp-weixin.appid 字段。');
    }

    $updatedContent = preg_replace_callback(
        $pattern,
        static fn(array $matches): string => $matches[1] . $miniProgramAppId . $matches[3],
        $manifestContent,
        1
    );

    if (!is_string($updatedContent) || $updatedContent === '') {
        throw new RuntimeException('同步 manifest.json 失败。');
    }

    if (@file_put_contents($manifestPath, $updatedContent) === false) {
        throw new RuntimeException('写入 user-app/src/manifest.json 失败。');
    }

    echo "SYNC_CLIENT_CONFIG_OK\n";
    echo "mini_program.app_id => {$miniProgramAppId}\n";
} catch (Throwable $e) {
    fwrite(STDERR, "SYNC_CLIENT_CONFIG_FAIL: {$e->getMessage()}\n");
    exit(1);
}