<?php

use App\Http\Middleware\HandleInertiaRequests;
use App\Http\Middleware\ValidateCsrfToken;
use App\Modules\Api\Http\Middleware\EnsureApiAccountIsActive;
use App\Modules\Api\Http\Middleware\EnsureStaffToken;
use App\Modules\Api\Http\Middleware\EnsureTokenCan;
use App\Modules\Api\Http\Middleware\RecordApiRequest;
use App\Modules\Api\Http\Middleware\SetApiLocale;
use App\Modules\Api\Support\ProblemDetails;
use App\Modules\Identity\Http\Middleware\EnforceTwoFactor;
use App\Modules\Identity\Http\Middleware\EnsureAccountIsActive;
use App\Modules\Identity\Http\Middleware\EnsureSetupIsComplete;
use App\Modules\Identity\Http\Middleware\EnsureStaff;
use App\Modules\Platform\Http\Middleware\EnsureCapability;
use App\Modules\Platform\Http\Middleware\SetLocale;
use App\Support\WriteSafeRedirect;
use Illuminate\Foundation\Application;
use Illuminate\Foundation\Configuration\Exceptions;
use Illuminate\Foundation\Configuration\Middleware;
use Illuminate\Http\Request;
use Illuminate\Session\Middleware\AuthenticateSession;
use Symfony\Component\HttpFoundation\Response as SymfonyResponse;

return Application::configure(basePath: dirname(__DIR__))
    ->withRouting(
        web: __DIR__.'/../routes/web.php',
        // Versioned at the prefix, not with a header or a query parameter:
        // /api/v1 is a frozen contract, and a future /api/v2 gets its own
        // route file rather than branching inside these controllers.
        api: __DIR__.'/../routes/api.php',
        apiPrefix: 'api/v1',
        commands: __DIR__.'/../routes/console.php',
        health: '/up',
    )
    ->withMiddleware(function (Middleware $middleware) {
        // Trusted proxies are configured in config/trustedproxy.php, NOT
        // here. This closure runs when the HTTP kernel is resolved, which is
        // before the dotenv bootstrapper has read .env, so env() returns null
        // here for anything that is not already a real environment variable —
        // silently, and only on web requests (artisan bootstraps in the other
        // order, so a CLI check reports the setting as working). The framework's
        // TrustProxies middleware is in the global stack either way and falls
        // back to that config key on its own.

        $middleware->web(append: [
            // Binds every session to the password hash it was created under,
            // so changing a password (or a reset) actually terminates the
            // account's other sessions instead of leaving a stolen one live.
            // Required for Auth::logoutOtherDevices() to have any effect.
            AuthenticateSession::class,
            EnsureSetupIsComplete::class,
            EnsureAccountIsActive::class,
            EnforceTwoFactor::class,
            SetLocale::class,
            HandleInertiaRequests::class,
            // Deliberately NOT here: AddLinkHeadersForPreloadedAssets. It
            // copies every Vite preload into a `Link:` response header,
            // and the head of the document already carries the identical
            // tags — twenty of them on the login page, more on a heavier
            // one. The copy is what a browser never reads and a proxy has
            // to buffer: it pushed /files past 6 KB of headers, where the
            // 4 KB proxy_buffer_size that nginx, and therefore Nginx Proxy
            // Manager, defaults to answers 502. Some pages fit and some do
            // not, so it reads as an intermittent fault rather than a
            // header that is always too big (#1664). Nothing is lost but
            // 103 Early Hints, which this application does not send.
        ]);

        // The API group gets none of the web stack above — no session, no
        // CSRF, no Inertia. Locale is the one thing worth carrying over,
        // since validation messages are written for a human to read; the
        // web SetLocale can't be reused because it reads the session.
        $middleware->api(append: [
            SetApiLocale::class,
            // Applied to the group rather than per route, so an endpoint
            // added later is measured without anyone opting in.
            RecordApiRequest::class,
        ]);

        $middleware->throttleApi();

        $middleware->validateCsrfTokens(except: [
            'uploads/*/parts/*',
        ]);

        // Swapped for the subclass only to name the CSRF cookie after this
        // installation rather than after the framework — see that class for
        // what sharing `XSRF-TOKEN` with a neighbouring app does.
        //
        // `web(replace:)` rather than the bare `replace()`: the latter only
        // reaches the global stack, and CSRF lives in the web group, so it
        // silently does nothing here.
        $middleware->web(replace: [
            Illuminate\Foundation\Http\Middleware\ValidateCsrfToken::class => ValidateCsrfToken::class,
        ]);

        $middleware->alias([
            'capability' => EnsureCapability::class,
            'staff' => EnsureStaff::class,
            'staff-token' => EnsureStaffToken::class,
            'token-can' => EnsureTokenCan::class,
            'api-active' => EnsureApiAccountIsActive::class,
        ]);
    })
    ->withExceptions(function (Exceptions $exceptions) {
        // Every credential this application stores encrypted, named again
        // here so a failed validation does not write it back out in clear.
        //
        // A ValidationException flashes the request's input into the
        // session so the form can be repopulated, minus this list. The
        // framework's own three cover the login and password forms; none
        // of the settings screens' credentials were on it, and
        // config/session.php stores sessions in the database by default
        // with `encrypt => false`. So a mistyped storage form put the
        // secret access key in clear into the same database whose dump the
        // `encrypted` cast exists to survive — and a service account key
        // file, which is most likely to fail validation exactly when it
        // was pasted incompletely, put a private key there.
        //
        // Merged with the framework's defaults rather than replacing them.
        // The cost is that these fields come back blank after a failed
        // save, which is what every one of these screens already does on a
        // successful one: they are write-only, and a blank means "keep
        // what is stored".
        $exceptions->dontFlash([
            'secret',           // ExternalStorageSettingsController (S3)
            'key_file',         // ExternalStorageSettingsController (GCS)
            'bind_password',    // LdapSettingsController
            'client_secret',    // SocialLoginSettingsController, EmailSettingsController
            'secret_key',       // CaptchaSettingsController
        ]);

        // RFC 7807 for /api/* only. Everything else — web pages, Inertia
        // requests, the public share links — keeps Laravel's own handling
        // untouched, which is why this is scoped by path rather than by
        // whether the request happens to accept JSON (Inertia requests do).
        $exceptions->render(function (Throwable $e, Request $request) {
            $problems = app(ProblemDetails::class);

            return $problems->shouldHandle($request)
                ? $problems->render($request, $e)
                : null;
        });

        // A redirect born in exception handling — the guest redirect after
        // an expired login, above all — never travels back through the
        // middleware stack, so Inertia's usual 302→303 upgrade cannot reach
        // it. WriteSafeRedirect explains why that matters and holds the
        // rule; the same three middleware that answer before Inertia's is
        // reached apply it too.
        $exceptions->respond(
            fn (SymfonyResponse $response, Throwable $e, Request $request): SymfonyResponse => WriteSafeRedirect::apply($request, $response)
        );
    })->create();