<?php

use App\Http\Controllers\Api\ApplicationFileController;
use App\Http\Controllers\ChannelEntryController;
use App\Http\Middleware\EncryptCookies;
use App\Http\Middleware\VerifyCsrfToken;
use App\Models\PublicSourceChannel;
use Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Route;
use Illuminate\Session\Middleware\StartSession;
use Illuminate\View\Middleware\ShareErrorsFromSession;

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider and all of them will
| be assigned to the "web" middleware group. Make something great!
|
*/

$showEventSite = function (string $eventSiteRelative = 'frontend/event-site.html') {
    $sourceCode = trim((string) request()->query('src', ''));
    $publicSourceCode = null;
    if (preg_match('/^[A-Za-z0-9_-]{2,64}$/', $sourceCode) === 1) {
        try {
            $publicSourceCode = PublicSourceChannel::query()
                ->where('source_code', $sourceCode)
                ->where('status', PublicSourceChannel::STATUS_ENABLED)
                ->value('source_code');
        } catch (Throwable) {
            $publicSourceCode = null;
        }
    }

    return view('welcome', [
        'publicSourceCode' => $publicSourceCode,
        'eventSiteRelative' => $eventSiteRelative,
    ]);
};

Route::get('/', fn () => $showEventSite());
Route::get('/en', fn () => $showEventSite('frontend/event-site-en.html'));

Route::get('/channel-entry', ChannelEntryController::class)->name('channel.entry');

/**
 * 选手端附件预览：签名临时 URL；跳过 session/CSRF，保留 SubstituteBindings 以解析 {file} 模型。
 */
Route::get('/participant/application-files/{file}', [ApplicationFileController::class, 'downloadSigned'])
    ->middleware('signed')
    ->withoutMiddleware([
        EncryptCookies::class,
        AddQueuedCookiesToResponse::class,
        StartSession::class,
        ShareErrorsFromSession::class,
        VerifyCsrfToken::class,
    ])
    ->whereNumber('file')
    ->name('participant.application-file.download');

/**
 * 前端 SPA（public/admin）。
 * php artisan serve 在未使用项目根 server.php 时，可能把 /admin/c/... 改写成 /c/...；
 * 因此同时注册 /admin/{path?} 与 /c/{path?} 回退，均返回同一 index.html。
 */
$serveAdminSpa = function (?string $path = null) {
    if ($path !== null && $path !== '') {
        $candidate = public_path('admin/'.$path);
        if (File::isFile($candidate)) {
            return response()->file($candidate);
        }
    }
    $index = public_path('admin/index.html');
    if (! File::exists($index)) {
        abort(503, 'Admin frontend not built. Run npm run build in the frontend project.');
    }

    return response()->file($index, ['Content-Type' => 'text/html; charset=UTF-8']);
};

Route::redirect('/admin', '/admin/', 301);

Route::get('/admin/{path?}', $serveAdminSpa)->where('path', '.*')->name('admin.spa');

Route::get('/c/{path?}', $serveAdminSpa)->where('path', '.*')->name('admin.spa.c-fallback');