<?php
declare(strict_types=1);

/**
 * 批量把代码中的中文 message 替换为英文短句（显式英文，不是错误码）：
 * - return $this->success('中文...')
 * - return $this->fail('中文...', ...)
 * - throw new ApiException('中文...', ...)
 *
 * 英文短句来源：resource/translations/api/en.php 与 zh.php 中的 MSG_ 对照（crc32 中文生成 key）。
 * 同时自动把“英文短句 => 英文/中文”写入 resource/translations/api/{en,zh}.php（Webman 标准路径）。
 *
 * 用法：
 * php server/scripts/replace_cn_messages_with_en.php
 */

$root = dirname(__DIR__);
$serverDir = $root;

$enPath = $root . '/resource/translations/api/en.php';
$zhPath = $root . '/resource/translations/api/zh.php';

$enMap = is_file($enPath) ? (require $enPath) : [];
$zhMap = is_file($zhPath) ? (require $zhPath) : [];

/** @var array<string, string> $cnToEn */
$cnToEn = [];
foreach ($zhMap as $k => $cn) {
    if (!is_string($k) || !is_string($cn)) {
        continue;
    }
    if (strncmp($k, 'MSG_', 4) !== 0) {
        continue;
    }
    $en = $enMap[$k] ?? null;
    if (is_string($en) && $en !== '') {
        $cnToEn[$cn] = $en;
    }
}

$fallbackCn = [
    '添加成功' => 'add success',
    '修改成功' => 'update success',
    '删除成功' => 'delete success',
    '操作成功' => 'operation success',
    '保存成功' => 'save success',
    '执行成功' => 'execute success',
    '安装成功' => 'install success',
    '导入成功' => 'import success',
    '发送成功' => 'send success',
    '重载成功' => 'reload success',
    '重置成功' => 'reset success',
    '卸载插件成功' => 'uninstall plugin success',
    '优化成功' => 'optimize success',
    '清理成功' => 'clean success',
    '清除缓存成功!' => 'clear cache success',
    '已清空测试数据' => 'test data cleared',
    '已清空所有测试数据' => 'all test data cleared',
    '创建奖励对照成功' => 'create reward mapping success',
    '导入成功，已刷新 DiceReward、DiceRewardConfig(BIGWIN)、奖池配置' => 'import success, refreshed DiceReward, DiceRewardConfig(BIGWIN), and pool config',
    '下载成功，请在插件列表中安装' => 'download success, please install in plugin list',
];

$containsCn = static function (string $s): bool {
    return preg_match('/[\x{4e00}-\x{9fff}]/u', $s) === 1;
};

$quote = static function (string $s): string {
    return "'" . str_replace("'", "\\'", $s) . "'";
};

$dump = static function (array $arr): string {
    ksort($arr);
    $out = "<?php\ndeclare(strict_types=1);\n\nreturn [\n";
    foreach ($arr as $k => $v) {
        $k = str_replace("'", "\\'", (string) $k);
        $v = str_replace("'", "\\'", (string) $v);
        $out .= "    '{$k}' => '{$v}',\n";
    }
    $out .= "];\n";
    return $out;
};

$files = [];
$it = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator($serverDir, FilesystemIterator::SKIP_DOTS)
);
foreach ($it as $file) {
    /** @var SplFileInfo $file */
    if (!$file->isFile()) {
        continue;
    }
    $path = $file->getPathname();
    if (substr($path, -4) !== '.php') {
        continue;
    }
    // 跳过 translations 目录与 scripts 自己，避免自我替换
    $norm = str_replace('\\', '/', $path);
    if (str_contains($norm, '/resource/translations/')) {
        continue;
    }
    if (str_contains($norm, '/scripts/replace_cn_messages_with_en.php')) {
        continue;
    }
    $files[] = $path;
}

$totalReplaced = 0;
$touchedFiles = 0;
$addedKeys = 0;

foreach ($files as $path) {
    $content = file_get_contents($path);
    if (!is_string($content) || $content === '') {
        continue;
    }

    $replacedInFile = 0;
    $newContent = $content;

    // 只处理单引号字符串：'...'
    $patterns = [
        // return $this->success('中文')
        '/(\$this->success\(\s*)\'([^\'\\\\]*(?:\\\\.[^\'\\\\]*)*)\'/' => 'success',
        // return $this->success($data, '中文')
        '/(\$this->success\([^\\)]*?,\s*)\'([^\'\\\\]*(?:\\\\.[^\'\\\\]*)*)\'/' => 'success_msg',
        // return $this->fail('中文', ...)
        '/(\$this->fail\(\s*)\'([^\'\\\\]*(?:\\\\.[^\'\\\\]*)*)\'/' => 'fail',
        // throw new ApiException('中文', ...)
        '/(throw\s+new\s+ApiException\(\s*)\'([^\'\\\\]*(?:\\\\.[^\'\\\\]*)*)\'/' => 'exception',
    ];

    foreach ($patterns as $regex => $type) {
        $newContent = preg_replace_callback($regex, function (array $m) use (
            $containsCn,
            $quote,
            &$cnToEn,
            $fallbackCn,
            &$enMap,
            &$zhMap,
            &$replacedInFile,
            &$addedKeys,
            $type
        ) {
            $prefix = $m[1];
            $raw = $m[2];
            $cn = stripcslashes($raw);
            if (!$containsCn($cn)) {
                return $m[0];
            }
            $en = $cnToEn[$cn] ?? ($fallbackCn[$cn] ?? null);
            if (!is_string($en) || $en === '') {
                return $m[0];
            }

            // 写入翻译表：英文短句作为 key
            if (!isset($enMap[$en])) {
                $enMap[$en] = $en;
                $addedKeys++;
            }
            if (!isset($zhMap[$en])) {
                $zhMap[$en] = $cn;
                $addedKeys++;
            }

            $replacedInFile++;
            return $prefix . $quote($en);
        }, $newContent) ?? $newContent;
    }

    if ($replacedInFile > 0 && $newContent !== $content) {
        file_put_contents($path, $newContent);
        $totalReplaced += $replacedInFile;
        $touchedFiles++;
    }
}

file_put_contents($enPath, $dump($enMap));
file_put_contents($zhPath, $dump($zhMap));

echo "touched_files={$touchedFiles}\n";
echo "replaced={$totalReplaced}\n";
echo "added_translation_pairs={$addedKeys}\n";