<?php

use App\Enums\ActivityType;
use App\Enums\CreditTransactionType;
use App\Enums\SinglePurchaseStatus;
use App\Enums\SinglePurchaseType;
use App\Models\ActivityEvent;
use App\Models\User;
use App\Services\Billing\AdminGrantService;
use App\Services\Billing\CreditWalletService;
use Database\Seeders\RolesAndPermissionsSeeder;
use Livewire\Volt\Volt as LivewireVolt;
use Spatie\Permission\PermissionRegistrar;
use Tests\TestCase;

/**
 * Admin-Gutschriften ohne Zahlung (Admin ▸ Benutzer ▸ Guthaben & Kontingent):
 * Credits als Grant ins Wallet-Ledger, freie PMs als 0-€-Einzelkäufe —
 * beides protokolliert im Aktivitäts-Verlauf.
 */
test('an admin can grant credits without a payment', function () {
    $admin = User::factory()->create(['name' => 'Admin Ada']);
    $user = User::factory()->create();

    app(AdminGrantService::class)->grantCredits($user, 500, $admin, 'Interne Nutzung');

    expect(app(CreditWalletService::class)->balance($user))->toBe(500);

    $transaction = $user->creditWallet()->sole()->transactions()->sole();
    expect($transaction->type)->toBe(CreditTransactionType::Grant)
        ->and($transaction->amount_credits)->toBe(500)
        ->and($transaction->description)->toContain('Admin Ada')
        ->and($transaction->description)->toContain('Interne Nutzung');

    $event = ActivityEvent::query()->where('type', ActivityType::AdminGrant->value)->sole();
    expect($event->user_id)->toBe($user->id)
        ->and($event->description)->toContain('500 Credits')
        ->and($event->description)->toContain('ohne Zahlung')
        ->and($event->meta['granted_by'])->toBe($admin->id);
});

test('an admin can grant free press releases that satisfy the booking gate', function () {
    config(['billing.enforce_booking' => true]);

    $admin = User::factory()->create();
    $user = User::factory()->create();

    expect($user->hasActiveBooking())->toBeFalse();

    app(AdminGrantService::class)->grantFreePressReleases($user, 3, $admin, 'Eigene PMs');

    $purchases = $user->singlePurchases()->get();
    expect($purchases)->toHaveCount(3)
        ->and($purchases->first()->type)->toBe(SinglePurchaseType::SinglePm)
        ->and($purchases->first()->status)->toBe(SinglePurchaseStatus::Paid)
        ->and($purchases->first()->price_cents)->toBe(0)
        ->and($purchases->first()->paid_at)->not->toBeNull();

    $fresh = User::query()->find($user->id);
    expect($fresh->hasActiveBooking())->toBeTrue()
        ->and($fresh->openSinglePurchaseCount())->toBe(3)
        ->and($fresh->pressReleaseQuotaRemaining())->toBe(3);

    $event = ActivityEvent::query()->where('type', ActivityType::AdminGrant->value)->sole();
    expect($event->description)->toContain('3 freie Pressemitteilung(en)')
        ->and($event->meta['free_press_releases'])->toBe(3);
});

test('the user show page grants credits and free pms through the panel', function () {
    /** @var TestCase $this */
    $this->seed(RolesAndPermissionsSeeder::class);

    $admin = User::factory()->create(['is_active' => true]);
    $admin->assignRole('admin');
    $this->actingAs($admin);

    // Gutschrift auf das eigene Admin-Konto — der Live-Anwendungsfall.
    LivewireVolt::test('admin.users.show', ['id' => $admin->id])
        ->set('grantCreditsAmount', 250)
        ->set('grantCreditsNote', 'Eigenbedarf')
        ->call('grantCredits')
        ->assertHasNoErrors()
        ->set('grantPmCount', 5)
        ->call('grantFreePressReleases')
        ->assertHasNoErrors();

    expect(app(CreditWalletService::class)->balance($admin))->toBe(250)
        ->and($admin->singlePurchases()->grantingSubmission()->count())->toBe(5);
});

test('the grant panel is not available without the users manage permission', function () {
    /** @var TestCase $this */
    $this->seed(RolesAndPermissionsSeeder::class);

    $editor = User::factory()->create(['is_active' => true]);
    $editor->assignRole('editor');
    $this->actingAs($editor);

    $this->get(route('admin.users.show', $editor->id))->assertForbidden();
});

test('grants are refused once the permission is revoked while the panel stays open (Audit F08)', function () {
    /** @var TestCase $this */
    $this->seed(RolesAndPermissionsSeeder::class);

    $admin = User::factory()->create(['is_active' => true]);
    $admin->assignRole('admin');
    $this->actingAs($admin);

    // Zwei geladene Komponenten (ein 403 verwirft den Livewire-Snapshot).
    $credits = LivewireVolt::test('admin.users.show', ['id' => $admin->id]);
    $releases = LivewireVolt::test('admin.users.show', ['id' => $admin->id]);

    // Herabstufung, während die Komponenten bereits geladen sind.
    $admin->syncRoles(['editor']);
    app()[PermissionRegistrar::class]->forgetCachedPermissions();

    $credits->set('grantCreditsAmount', 250)->call('grantCredits')->assertForbidden();
    $releases->set('grantPmCount', 2)->call('grantFreePressReleases')->assertForbidden();

    expect(app(CreditWalletService::class)->balance($admin))->toBe(0)
        ->and($admin->singlePurchases()->count())->toBe(0);

    // Die Route selbst verlangt die Berechtigung – nicht nur mount().
    $this->get(route('admin.users.show', $admin->id))->assertForbidden();
});