<?php

use App\Actions\Admin\UserImpersonation;
use App\Enums\SecurityChange;
use App\Http\Responses\PasskeyLoginResponse;
use App\Mail\SecurityChangeNotice;
use App\Models\User;
use App\Services\Auth\SecurityConfirmation;
use App\Services\Auth\StrongAuthentication;
use Database\Seeders\RolesAndPermissionsSeeder;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Str;
use Laravel\Fortify\Events\ValidTwoFactorAuthenticationCodeProvided;
use Laravel\Passkeys\Events\PasskeyDeleted;
use Laravel\Passkeys\Events\PasskeyRegistered;
use Laravel\Passkeys\Events\PasskeyVerified;
use Laravel\Passkeys\Passkey;
use Laravel\Passkeys\Passkeys;
use Livewire\Livewire;
use PragmaRX\Google2FA\Google2FA;
use Tests\TestCase;

/**
 * Entscheidung 5 (07.10.2026): Passkeys als bequemer, starker Login für alle
 * und als Pflicht-Zweitfaktor (alternativ Authenticator-App) für Super-Admins
 * und Admins im Admin-Bereich. Die WebAuthn-Zeremonie selbst prüft das Paket
 * laravel/passkeys; hier geht es um die Anbindung an die eigenen Schutzschichten.
 */
beforeEach(function () {
    $this->seed(RolesAndPermissionsSeeder::class);
    Mail::fake();
});

function userWithPasskeyRole(string $role, array $attributes = []): User
{
    $user = User::factory()->create(['is_active' => true, ...$attributes]);
    $user->assignRole($role);

    return $user;
}

function passkeyFor(User $user): Passkey
{
    return $user->passkeys()->create([
        'name' => 'MacBook',
        'credential_id' => Str::random(32),
        'credential' => ['aaguid' => '00000000-0000-0000-0000-000000000000'],
    ]);
}

function withTotp(User $user): string
{
    $secret = app(Google2FA::class)->generateSecretKey();
    $user->forceFill([
        'two_factor_secret' => encrypt($secret),
        'two_factor_recovery_codes' => encrypt(json_encode(['recovery-eins'])),
        'two_factor_confirmed_at' => now(),
    ])->save();

    return $secret;
}

/*
 * Pflicht im Admin-Bereich
 */
test('an admin without a confirmed second factor is sent to the confirmation page and back', function () {
    /** @var TestCase $this */
    config(['auth.require_strong_admin_authentication' => true]);
    $admin = userWithPasskeyRole('admin');
    $secret = withTotp($admin);

    $this->actingAs($admin)
        ->get('https://pressekonto.test/admin/companies')
        ->assertRedirect(route('strong-auth.confirm'));

    Livewire::test('auth.strong-confirmation')
        ->set('securityCode', app(Google2FA::class)->getCurrentOtp($secret))
        ->call('confirmWithCode')
        ->assertHasNoErrors()
        ->assertRedirect('https://pressekonto.test/admin/companies');

    $this->get('https://pressekonto.test/admin/companies')->assertSuccessful();
});

test('a wrong authenticator code does not confirm the admin session', function () {
    config(['auth.require_strong_admin_authentication' => true]);
    $admin = userWithPasskeyRole('admin');
    withTotp($admin);

    $this->actingAs($admin);

    Livewire::test('auth.strong-confirmation')
        ->set('securityCode', '000000')
        ->call('confirmWithCode')
        ->assertHasErrors(['securityCode']);

    expect(app(StrongAuthentication::class)->isSatisfiedBy($admin))->toBeFalse();
});

test('magic link, google or password alone never satisfy the admin requirement', function () {
    /** @var TestCase $this */
    config(['auth.require_strong_admin_authentication' => true]);
    $superAdmin = userWithPasskeyRole('admin', ['is_super_admin' => true]);

    $this->actingAs($superAdmin)->get(route('dashboard'))->assertRedirect(route('strong-auth.confirm'));
    $this->get('https://pressekonto.test/admin/companies')->assertRedirect(route('strong-auth.confirm'));
});

test('without any second factor the confirmation page leads to the setup', function () {
    /** @var TestCase $this */
    config(['auth.require_strong_admin_authentication' => true]);
    $this->actingAs(userWithPasskeyRole('admin'));

    $this->get(route('strong-auth.confirm'))
        ->assertSuccessful()
        ->assertSee('Zweiten Faktor einrichten')
        ->assertSee(route('me.security'));
});

test('editors and customers are not affected by the admin requirement', function () {
    /** @var TestCase $this */
    config(['auth.require_strong_admin_authentication' => true]);

    $this->actingAs(userWithPasskeyRole('editor'))
        ->get('https://pressekonto.test/admin/press-releases')
        ->assertSuccessful();

    $this->actingAs(userWithPasskeyRole('customer'))
        ->get(route('me.security'))
        ->assertSuccessful();
});

test('the emergency switch disables the admin requirement', function () {
    /** @var TestCase $this */
    config(['auth.require_strong_admin_authentication' => false]);

    $this->actingAs(userWithPasskeyRole('admin'))
        ->get('https://pressekonto.test/admin/companies')
        ->assertSuccessful();
});

test('livewire requests of an unconfirmed admin session are rejected', function () {
    /** @var TestCase $this */
    config(['auth.require_strong_admin_authentication' => true]);
    $this->actingAs(userWithPasskeyRole('admin'));

    $this->getJson('https://pressekonto.test/admin/companies')->assertForbidden();
});

/*
 * Passkey- und 2FA-Ereignisse
 */
test('a verified passkey confirms the session strongly and counts as identity proof', function () {
    /** @var TestCase $this */
    config(['auth.require_strong_admin_authentication' => true]);
    $admin = userWithPasskeyRole('admin');
    $passkey = passkeyFor($admin);

    $this->actingAs($admin);
    PasskeyVerified::dispatch($admin, $passkey);

    expect(app(StrongAuthentication::class)->isSatisfiedBy($admin))->toBeTrue()
        ->and(app(SecurityConfirmation::class)->isFresh($admin))->toBeTrue();

    Livewire::test('auth.strong-confirmation')->assertRedirect(route('dashboard'));
    $this->get('https://pressekonto.test/admin/companies')->assertSuccessful();
});

test('the passkey confirmation callback fails without a verified passkey', function () {
    $admin = userWithPasskeyRole('admin');
    passkeyFor($admin);
    $this->actingAs($admin);

    Livewire::test('auth.strong-confirmation')
        ->call('passkeyConfirmed')
        ->assertHasErrors(['passkey']);
});

test('a valid code in the two-factor challenge confirms the session strongly', function () {
    $admin = userWithPasskeyRole('admin');
    $this->actingAs($admin);

    event(new ValidTwoFactorAuthenticationCodeProvided($admin));

    expect(app(StrongAuthentication::class)->isSatisfiedBy($admin))->toBeTrue();
});

test('added and removed passkeys are reported to the account address', function () {
    $user = userWithPasskeyRole('customer', ['email' => 'passkey@example.com']);
    $passkey = passkeyFor($user);

    PasskeyRegistered::dispatch($user, $passkey);
    PasskeyDeleted::dispatch($user, $passkey);

    Mail::assertQueued(SecurityChangeNotice::class, fn (SecurityChangeNotice $mail) => $mail->change === SecurityChange::PasskeyAdded && $mail->hasTo('passkey@example.com'));
    Mail::assertQueued(SecurityChangeNotice::class, fn (SecurityChangeNotice $mail) => $mail->change === SecurityChange::PasskeyRemoved);
});

/*
 * Passkey-Login
 */
test('only active and verified accounts may sign in with a passkey', function (array $attributes, bool $allowed) {
    $user = userWithPasskeyRole('customer', $attributes);
    $passkey = passkeyFor($user);

    expect(Passkeys::allowsLogin(Request::create('/passkeys/login', 'POST'), $passkey->fresh()))->toBe($allowed);
})->with([
    'active and verified' => [[], true],
    'deactivated' => [['is_active' => false], false],
    'unverified' => [['email_verified_at' => null], false],
]);

test('the passkey login response records the login and keeps customers out of admin targets', function () {
    /** @var TestCase $this */
    $user = userWithPasskeyRole('customer');
    $this->actingAs($user);

    $request = Request::create('/passkeys/login', 'POST', server: ['HTTP_ACCEPT' => 'application/json']);
    $request->setLaravelSession(app('session.store'));
    $request->setUserResolver(fn () => $user);
    session()->put('url.intended', 'https://pressekonto.test/admin/companies');

    $response = (new PasskeyLoginResponse)->toResponse($request);

    expect($response->getData(true)['redirect'])->not->toContain('/admin/companies')
        ->and($user->fresh()->last_login_at)->not->toBeNull();
});

/*
 * Passkeys verwalten
 */
test('passkey registration options require a fresh identity proof', function () {
    /** @var TestCase $this */
    $user = userWithPasskeyRole('customer');

    $this->actingAs($user)
        ->getJson('https://pressekonto.test/user/passkeys/options')
        ->assertForbidden();

    $this->withSession([SecurityConfirmation::SESSION_KEY => ['user_id' => $user->id, 'at' => now()->getTimestamp()]])
        ->getJson('https://pressekonto.test/user/passkeys/options')
        ->assertSuccessful()
        ->assertJsonStructure(['options' => ['challenge', 'rp', 'user']]);
});

test('passkeys cannot be registered during impersonation', function () {
    /** @var TestCase $this */
    $admin = userWithPasskeyRole('admin');
    $user = userWithPasskeyRole('customer');

    $this->actingAs($user)
        ->withSession([
            UserImpersonation::SessionKey => $admin->id,
            SecurityConfirmation::SESSION_KEY => ['user_id' => $user->id, 'at' => now()->getTimestamp()],
        ])
        ->getJson('https://pressekonto.test/user/passkeys/options')
        ->assertForbidden();
});

test('the unused fortify passkey delete route is blocked', function () {
    /** @var TestCase $this */
    $user = userWithPasskeyRole('customer');
    $passkey = passkeyFor($user);

    $this->actingAs($user)
        ->deleteJson("https://pressekonto.test/user/passkeys/{$passkey->id}")
        ->assertNotFound();

    expect($passkey->fresh())->not->toBeNull();
});

test('the security page starts a passkey registration only after the identity proof', function () {
    $user = userWithPasskeyRole('customer');
    $this->actingAs($user);

    Livewire::test('customer.security')
        ->set('passkeyName', 'iPhone')
        ->call('startPasskeyRegistration')
        ->assertHasErrors(['securityPassword'])
        ->assertNotDispatched('passkey-register');

    Livewire::test('customer.security')
        ->set('passkeyName', 'iPhone')
        ->set('securityPassword', 'password')
        ->call('startPasskeyRegistration')
        ->assertHasNoErrors()
        ->assertDispatched('passkey-register', name: 'iPhone');
});

test('removing a passkey needs the identity proof and reports it', function () {
    $user = userWithPasskeyRole('customer');
    $passkey = passkeyFor($user);
    $foreign = passkeyFor(userWithPasskeyRole('customer'));
    $this->actingAs($user);

    Livewire::test('customer.security')
        ->call('deletePasskey', $passkey->id)
        ->assertHasErrors(['securityPassword']);

    expect($passkey->fresh())->not->toBeNull();

    Livewire::test('customer.security')
        ->set('securityPassword', 'password')
        ->call('deletePasskey', $passkey->id)
        ->assertHasNoErrors();

    expect($passkey->fresh())->toBeNull();
    Mail::assertQueued(SecurityChangeNotice::class, fn (SecurityChangeNotice $mail) => $mail->change === SecurityChange::PasskeyRemoved);

    Livewire::test('customer.security')
        ->call('deletePasskey', $foreign->id)
        ->assertNotFound();

    expect($foreign->fresh())->not->toBeNull();
});

test('a verified passkey replaces the password for a security change', function () {
    $user = userWithPasskeyRole('customer', ['email' => 'alt-passkey@example.com']);
    $passkey = passkeyFor($user);
    $this->actingAs($user);

    PasskeyVerified::dispatch($user, $passkey);

    Livewire::test('customer.security')
        ->set('email', 'neu-passkey@example.com')
        ->call('updateEmail')
        ->assertHasNoErrors();

    expect($user->fresh()->pending_email)->toBe('neu-passkey@example.com');
});

/*
 * Notfall-Reset durch Super-Admins
 */
test('a super admin resets passkeys and authenticator of another account', function () {
    /** @var TestCase $this */
    $superAdmin = userWithPasskeyRole('admin', ['is_super_admin' => true]);
    $target = userWithPasskeyRole('admin', ['email' => 'verloren@example.com']);
    passkeyFor($target);
    withTotp($target);

    $this->actingAs($superAdmin);

    Livewire::test('admin.users.edit', ['id' => $target->id])
        ->call('resetSecondFactors')
        ->assertHasNoErrors();

    $target->refresh();
    expect($target->passkeys()->count())->toBe(0)
        ->and($target->hasEnabledTwoFactorAuthentication())->toBeFalse();

    Mail::assertQueued(SecurityChangeNotice::class, fn (SecurityChangeNotice $mail) => $mail->change === SecurityChange::SecondFactorsReset
        && $mail->hasTo('verloren@example.com'));
});

test('only super admins may reset second factors and never their own', function () {
    $admin = userWithPasskeyRole('admin');
    $superAdmin = userWithPasskeyRole('admin', ['is_super_admin' => true]);
    $target = userWithPasskeyRole('customer');
    passkeyFor($target);
    passkeyFor($superAdmin);

    $this->actingAs($admin);
    Livewire::test('admin.users.edit', ['id' => $target->id])
        ->call('resetSecondFactors')
        ->assertForbidden();

    $this->actingAs($superAdmin);
    Livewire::test('admin.users.edit', ['id' => $superAdmin->id])
        ->call('resetSecondFactors')
        ->assertForbidden();

    expect($target->passkeys()->count())->toBe(1)
        ->and($superAdmin->passkeys()->count())->toBe(1);
});