<?php

use App\Enums\LegalRequestStatus;
use App\Enums\LegalRequestType;
use App\Enums\LegalRequestVerificationMethod;
use App\Enums\Portal;
use App\Enums\SinglePurchaseStatus;
use App\Enums\SinglePurchaseType;
use App\Listeners\ProcessStripeWebhook;
use App\Mail\PressReleaseChangeApplied;
use App\Models\BillingAddress;
use App\Models\BookingConfirmation;
use App\Models\LegalRequest;
use App\Models\PressRelease;
use App\Models\SinglePurchase;
use App\Models\User;
use App\Services\Billing\StripeCheckoutService;
use Database\Seeders\RolesAndPermissionsSeeder;
use Illuminate\Http\RedirectResponse;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Facades\Queue;
use Laravel\Cashier\Checkout;
use Laravel\Cashier\Events\WebhookReceived;
use Tests\TestCase;

beforeEach(function (): void {
    /** @var TestCase $this */
    $this->seed(RolesAndPermissionsSeeder::class);
    config()->set('billing.change_price_cents', 1000);
});

function changeCustomer(): User
{
    $user = User::factory()->create(['is_active' => true, 'email_verified_at' => now()]);
    $user->assignRole('customer');
    BillingAddress::factory()->create(['user_id' => $user->id]);

    // B2B-Gate: zeitnahe Unternehmer-Bestätigung (wie im Änderungs-Modal).
    BookingConfirmation::query()->create([
        'user_id' => $user->id,
        'booking_type' => 'press_release_change',
        'agb_version' => (string) config('legal.agb_version'),
        'confirmed_at' => now(),
    ]);

    return $user;
}

function publishedChangeReleaseFor(User $user): PressRelease
{
    return PressRelease::factory()
        ->published()
        ->forPortal(Portal::Businessportal24)
        ->create([
            'user_id' => $user->id,
            'published_at' => now()->subDay(),
            'title' => 'Solaranlage in Hamburg eroeffnet und in Betrieb',
        ]);
}

function approvedChangeRequestFor(PressRelease $release, User $user): LegalRequest
{
    return LegalRequest::query()->create([
        'press_release_id' => $release->id,
        'portal' => $release->portal?->value,
        'type' => LegalRequestType::Change->value,
        'status' => LegalRequestStatus::Open->value,
        'requester_email' => (string) $user->email,
        'message' => 'Kostenpflichtige Änderung (Spur D) über das Kunden-Panel eingereicht.',
        'payload' => [
            'source' => 'self_service',
            'new_values' => ['title' => 'Solaranlage in Muenchen eroeffnet und in Vollbetrieb'],
            'ki_check' => ['classification' => 'green', 'reasons' => []],
        ],
        'verified_at' => now(),
        'verification_method' => LegalRequestVerificationMethod::LoggedIn->value,
    ]);
}

test('the change checkout refuses without an approved precheck request', function () {
    /** @var TestCase $this */
    $user = changeCustomer();
    $release = publishedChangeReleaseFor($user);

    $this->actingAs($user)
        ->get(route('me.checkout.change', $release->id))
        ->assertRedirect(route('me.bookings.index'))
        ->assertSessionHas('checkout-notice');

    expect(SinglePurchase::count())->toBe(0);
});

test('a red-rejected precheck request does not unlock the checkout', function () {
    /** @var TestCase $this */
    $user = changeCustomer();
    $release = publishedChangeReleaseFor($user);

    $request = approvedChangeRequestFor($release, $user);
    $request->forceFill([
        'status' => LegalRequestStatus::Rejected->value,
        'payload' => array_merge($request->payload, ['ki_check' => ['classification' => 'red', 'reasons' => ['Unzulässiges Wort.']]]),
    ])->save();

    $this->actingAs($user)
        ->get(route('me.checkout.change', $release->id))
        ->assertRedirect(route('me.bookings.index'))
        ->assertSessionHas('checkout-notice');

    expect(SinglePurchase::count())->toBe(0);
});

test('the change checkout creates a pending purchase, links the request and reuses pendings', function () {
    /** @var TestCase $this */
    $user = changeCustomer();
    $release = publishedChangeReleaseFor($user);
    $legalRequest = approvedChangeRequestFor($release, $user);

    $checkout = Mockery::mock(Checkout::class);
    $checkout->shouldReceive('toResponse')->andReturn(new RedirectResponse('https://checkout.stripe.com/c/pay/test'));
    $this->mock(StripeCheckoutService::class, function ($mock) use ($checkout) {
        // Zweimal: der zweite Aufruf verwendet den offenen Kauf wieder.
        $mock->shouldReceive('forChange')->twice()->andReturn($checkout);
    });

    $this->actingAs($user)
        ->get(route('me.checkout.change', $release->id))
        ->assertRedirect('https://checkout.stripe.com/c/pay/test');

    $purchase = SinglePurchase::sole();
    expect($purchase->type)->toBe(SinglePurchaseType::Change);
    expect($purchase->status)->toBe(SinglePurchaseStatus::Pending);
    expect($purchase->price_cents)->toBe(1000);
    expect($purchase->press_release_id)->toBe($release->id);
    expect($legalRequest->fresh()->single_purchase_id)->toBe($purchase->id);

    // Abgebrochener Checkout blockiert nicht: erneuter Aufruf nutzt den
    // Pending-Kauf wieder statt einen zweiten anzulegen.
    $this->actingAs($user)
        ->get(route('me.checkout.change', $release->id))
        ->assertRedirect('https://checkout.stripe.com/c/pay/test');

    expect(SinglePurchase::count())->toBe(1);
});

test('the paid webhook applies the change immediately with snapshot, lock and consumed purchase', function () {
    /** @var TestCase $this */
    Mail::fake();
    Queue::fake();

    $user = changeCustomer();
    $release = publishedChangeReleaseFor($user);
    $legalRequest = approvedChangeRequestFor($release, $user);

    $purchase = SinglePurchase::query()->create([
        'user_id' => $user->id,
        'type' => SinglePurchaseType::Change->value,
        'status' => SinglePurchaseStatus::Pending->value,
        'price_cents' => 1000,
        'currency' => 'EUR',
        'press_release_id' => $release->id,
    ]);
    $legalRequest->forceFill(['single_purchase_id' => $purchase->id])->save();

    $event = new WebhookReceived([
        'type' => 'checkout.session.completed',
        'data' => ['object' => [
            'id' => 'cs_test_change',
            'payment_intent' => 'pi_test_change',
            'payment_status' => 'paid',
            'metadata' => ['single_purchase_id' => (string) $purchase->id],
        ]],
    ]);

    app(ProcessStripeWebhook::class)->handle($event);
    app(ProcessStripeWebhook::class)->handle($event); // Replay bleibt folgenlos.

    $release->refresh();
    $legalRequest->refresh();

    expect($release->title)->toBe('Solaranlage in Muenchen eroeffnet und in Vollbetrieb')
        ->and($release->isSyncLocked())->toBeTrue()
        ->and($legalRequest->status)->toBe(LegalRequestStatus::Resolved)
        ->and($legalRequest->executed_at)->not->toBeNull()
        ->and($legalRequest->redactionSnapshots()->count())->toBe(1)
        ->and($legalRequest->redactionSnapshots()->first()->encrypted_before['fields']['title'])->toBe('Solaranlage in Hamburg eroeffnet und in Betrieb');

    expect($purchase->fresh()->status)->toBe(SinglePurchaseStatus::Consumed);
    expect($purchase->fresh()->consumed_at)->not->toBeNull();

    // Der Käufer erhält genau eine Bestätigung (Replay löst keine zweite aus).
    Mail::assertQueued(PressReleaseChangeApplied::class, function (PressReleaseChangeApplied $mail) use ($user, $release) {
        return $mail->hasTo($user->email) && $mail->pressRelease->is($release) && $mail->isPaidChange;
    });
    Mail::assertQueuedCount(1);
});