75 lines
2.9 KiB
PHP
75 lines
2.9 KiB
PHP
<?php
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declare(strict_types=1);
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namespace app\common\middleware;
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use Webman\MiddlewareInterface;
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use Webman\Http\Request;
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use Webman\Http\Response;
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/**
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* 加载控制器语言包中间件（Webman 迁移版，等价 ThinkPHP LoadLangPack）
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* 根据当前路由加载对应控制器的语言包到 Translator
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*/
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class LoadLangPack implements MiddlewareInterface
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{
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public function process(Request $request, callable $handler): Response
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{
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$path = trim($request->path(), '/');
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if (str_starts_with($path, 'api/') || str_starts_with($path, 'admin/')) {
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$this->loadLang($request);
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}
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return $handler($request);
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}
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protected function loadLang(Request $request): void
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{
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// 优先从请求头 think-lang 获取前端选择的语言（与前端 axios 发送的 header 对应）
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$headerLang = $request->header('think-lang');
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$allowLangList = config('lang.allow_lang_list', ['zh-cn', 'en']);
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if ($headerLang && in_array(str_replace('_', '-', strtolower($headerLang)), $allowLangList)) {
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$langSet = str_replace('_', '-', strtolower($headerLang));
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} else {
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$langSet = config('lang.default_lang', config('translation.locale', 'zh-cn'));
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$langSet = str_replace('_', '-', strtolower($langSet));
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}
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// 设置当前请求的翻译语言，使 __() 和 trans() 使用正确的语言
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if (function_exists('locale')) {
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locale($langSet);
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}
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$path = trim($request->path(), '/');
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$parts = explode('/', $path);
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$app = $parts[0] ?? 'api';
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$appLangDir = base_path() . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . $app . DIRECTORY_SEPARATOR . 'lang' . DIRECTORY_SEPARATOR;
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if (!class_exists(\support\Translation::class)) {
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return;
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}
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$translator = \support\Translation::instance();
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// 1. 加载根级语言包（zh-cn.php / en.php），供 common 翻译使用
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$rootLangFile = $appLangDir . $langSet . '.php';
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if (is_file($rootLangFile)) {
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$translator->addResource('phpfile', $rootLangFile, $langSet, 'messages');
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}
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// 2. 加载控制器专用语言包（如 zh-cn/auth/group.php），供 get_route_remark 等使用
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$controllerPath = get_controller_path($request);
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if ($controllerPath) {
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$controllerPathForFile = str_replace('.', '/', $controllerPath);
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$controllerPathForFile = implode('/', array_map(function ($p) {
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return strtolower(preg_replace('/([a-z])([A-Z])/', '$1_$2', $p));
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}, explode('/', $controllerPathForFile)));
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$controllerLangFile = $appLangDir . $langSet . DIRECTORY_SEPARATOR . str_replace('/', DIRECTORY_SEPARATOR, $controllerPathForFile) . '.php';
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if (is_file($controllerLangFile)) {
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$translator->addResource('phpfile', $controllerLangFile, $langSet, $controllerPath);
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}
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}
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}
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}
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