Rückerstattung {document_number}

<?php

namespace Tests\Feature;

use App\Domains\ParticipantRefund\Actions\CreateRefundDocument\CreateRefundDocumentCommand;
use App\Domains\ParticipantRefund\Actions\CreateRefundDocument\CreateRefundDocumentRequest;
use App\Domains\ParticipantRefund\ParticipantRefundTokens;
use App\Enumerations\EfzStatus;
use App\Enumerations\RefundReason;
use App\Models\DocumentTemplate;
use App\Models\Event;
use App\Models\EventParticipant;
use App\Models\ParticipantRefund;
use App\Models\PaymentMethod;
use App\Models\Tenant;
use App\Providers\DocumentTemplateRenderProvider;
use App\RelationModels\EventParticipationFee;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use ReflectionMethod;
use Tests\TestCase;

/**
 * Der Erstattungsbeleg: Nummer, Inhalt und der Abgleich zwischen Platzhalter-Katalog und den tatsächlich
 * gesetzten Werten.
 */
class RefundDocumentTest extends TestCase
{
    use RefreshDatabase;

    private Tenant $tenant;

    protected function setUp(): void
    {
        parent::setUp();

        $this->tenant = Tenant::create([
            'slug' => 'wm',
            'name' => 'Wilde Möhre',
            'invoice_sender_name' => 'Wilde Möhre e.V.',
            'address_1' => 'Musterweg 1',
            'email' => 't@example.com',
            'email_finance' => 'finance@example.com',
            'url' => parse_url(config('app.url'), PHP_URL_HOST),
            'account_name' => 'Test e.V.',
            'account_iban' => 'DE00',
            'account_bic' => 'XY',
            'city' => 'Lommatzsch',
            'postcode' => '01623',
            'invoice_prefix' => 'WM',
            'is_active_local_group' => true,
            'has_active_instance' => true,
        ]);

        app()->instance('tenant', $this->tenant);

        DB::table('participation_types')->insert(['slug' => 'participant', 'name' => 'Teilnehmer']);
        DB::table('participation_fee_types')->insert(['slug' => 'fixed', 'name' => 'Fix']);
        PaymentMethod::create(['slug' => PaymentMethod::PAYMENT_ACCOUNT_TRANSACTION]);
        EfzStatus::create(['slug' => EfzStatus::EFZ_STATUS_NOT_REQUIRED, 'name' => 'Nicht erforderlich']);

        $this->seedTemplate();
    }

    /** Die Vorlage setzt hier jeden Platzhalter ein, damit die Tests am gerenderten HTML prüfen können. */
    private function seedTemplate(): void
    {
        DocumentTemplate::create([
            'document_type' => DocumentTemplate::TYPE_PARTICIPANT_REFUND,
            'block' => DocumentTemplate::BLOCK_LAYOUT,
            'content' => '<div>{block:header_recipient}{block:subject}{block:body}</div>',
            'sort_order' => 10,
        ]);

        DocumentTemplate::create([
            'document_type' => DocumentTemplate::TYPE_PARTICIPANT_REFUND,
            'block' => 'header_recipient',
            'content' => '<p>{recipient_name} / {recipient_address_1} / {recipient_postcode} {recipient_city}</p>',
            'sort_order' => 35,
        ]);

        DocumentTemplate::create([
            'document_type' => DocumentTemplate::TYPE_PARTICIPANT_REFUND,
            'block' => DocumentTemplate::BLOCK_STYLE,
            'content' => 'body { font-size: 10pt; }',
            'sort_order' => 20,
        ]);

        DocumentTemplate::create([
            'document_type' => DocumentTemplate::TYPE_PARTICIPANT_REFUND,
            'block' => 'subject',
            'content' => '<h1>Rückerstattung {document_number}</h1>'
                . '<p>{document_date} / {event_name} / {service_period} / {unregistered_at}</p>'
                . '<p>{sender_name} / {recipient_name}</p>',
            'sort_order' => 30,
        ]);

        DocumentTemplate::create([
            'document_type' => DocumentTemplate::TYPE_PARTICIPANT_REFUND,
            'block' => DocumentTemplate::BLOCK_BODY,
            'content' => '{details_table}<p>{refund_amount} / {refund_reason} / {refund_reason_text}</p>'
                . '<p>{account_owner} / {account_iban}</p>'
                . '<p>{paid_amount} / {invoice_number}</p>'
                . '<p>{declaration_text}</p>',
            'sort_order' => 40,
        ]);
    }

    private function makeEvent(array $attributes = []): Event
    {
        $fee = EventParticipationFee::create([
            'tenant' => $this->tenant->slug,
            'type' => 'participant',
            'name' => 'Sippe',
            'description' => null,
            'amount_standard' => 60.0,
            'amount_reduced' => null,
            'amount_solidarity' => null,
        ]);

        return Event::create(array_merge([
            'tenant' => $this->tenant->slug,
            'name' => 'Sommerlager',
            'identifier' => 'evt-' . uniqid(),
            'location' => 'Ort',
            'postal_code' => '00000',
            'email' => 'e@example.com',
            'start_date' => '2026-07-16',
            'end_date' => '2026-07-20',
            'early_bird_end' => '2026-06-20',
            'registration_final_end' => '2026-07-01',
            'early_bird_end_amount_increase' => 0,
            'account_owner' => 'Owner',
            'account_iban' => 'DE00',
            'participation_fee_type' => 'fixed',
            'participation_fee_1' => $fee->id,
            'pay_per_day' => true,
            'pay_direct' => false,
            'tax_liable' => false,
            'vat_rate' => 0,
            'vat_pricing_mode' => 'inclusive',
            'invoice_key' => 'WM-V-20260701',
        ], $attributes));
    }

    private function makeParticipant(Event $event, array $attributes = []): EventParticipant
    {
        return $event->participants()->create(array_merge([
            'tenant' => $this->tenant->slug,
            'identifier' => 'p-' . uniqid(),
            'invoice_sequence' => 5,
            'firstname' => 'Mika',
            'lastname' => 'Muster',
            'participation_type' => 'participant',
            'fee_type' => 'standard',
            'sibling_reduction' => false,
            'local_group' => $this->tenant->slug,
            'birthday' => '2000-01-01',
            'address_1' => 'Beispielstraße 3',
            'postcode' => '11111',
            'city' => 'Beispielstadt',
            'email_1' => 'mika@example.com',
            'phone_1' => '0170 0000000',
            'arrival_date' => '2026-07-16',
            'departure_date' => '2026-07-20',
            'arrival_eating' => 1,
            'departure_eating' => 1,
            'amount' => 300.0,
            'amount_paid' => 300.0,
            'unregistered_at' => '2026-06-12',
            'payment_purpose' => 'Sommerlager',
            'payment_method' => PaymentMethod::PAYMENT_ACCOUNT_TRANSACTION,
            'efz_status' => EfzStatus::EFZ_STATUS_NOT_REQUIRED,
        ], $attributes));
    }

    /** Ein bestätigter Vorgang -- der Beleg entsteht erst dann. */
    private function makeRefund(array $attributes = [], array $eventAttributes = []): ParticipantRefund
    {
        $event = $this->makeEvent($eventAttributes);
        $participant = $this->makeParticipant($event);

        return ParticipantRefund::create(array_merge([
            'tenant' => $this->tenant->slug,
            'event_id' => $event->id,
            'event_participant_id' => $participant->id,
            'token' => str_repeat('a', 32),
            'status' => ParticipantRefund::STATUS_ACCEPTED,
            'amount' => 300.0,
            'reason' => RefundReason::SICKNESS,
            'account_owner' => 'Mika Muster',
            'account_iban' => 'DE02120300000000202051',
            'released_at' => '2026-06-14 10:00:00',
            'accepted_at' => '2026-06-18 09:30:00',
        ], $attributes));
    }

    private function document(ParticipantRefund $refund)
    {
        return new CreateRefundDocumentCommand(new CreateRefundDocumentRequest($refund))->execute();
    }

    /** Das gerenderte HTML -- die Zwischenstufe vor dem PDF, an der sich der Inhalt prüfen lässt. */
    private function html(ParticipantRefund $refund): string
    {
        $command = new CreateRefundDocumentCommand(new CreateRefundDocumentRequest($refund));
        $number = new ReflectionMethod($command, 'documentNumber')->invoke($command);
        $tokens = new ReflectionMethod($command, 'buildTokens')->invoke($command, $number);

        return new DocumentTemplateRenderProvider(DocumentTemplate::TYPE_PARTICIPANT_REFUND)->render($tokens);
    }

    /*
    |--------------------------------------------------------------------------
    | Nummer und PDF
    |--------------------------------------------------------------------------
    */

    public function test_document_number_extends_the_invoice_number(): void
    {
        $response = $this->document($this->makeRefund());

        $this->assertTrue($response->success);
        $this->assertSame('WM-V-20260701-0005-R', $response->documentNumber);
        $this->assertSame('Rueckerstattung-WM-V-20260701-0005-R.pdf', $response->filename);
    }

    public function test_a_pdf_is_produced(): void
    {
        $response = $this->document($this->makeRefund());

        $this->assertStringStartsWith('%PDF', $response->pdfContent);
    }

    public function test_no_document_without_an_invoice_key(): void
    {
        $response = $this->document($this->makeRefund(eventAttributes: ['invoice_key' => null]));

        $this->assertFalse($response->success);
        $this->assertStringContainsString('Belegnummer', $response->message);
    }

    public function test_no_document_before_the_participant_confirmed(): void
    {
        $response = $this->document($this->makeRefund([
            'status' => ParticipantRefund::STATUS_PENDING,
            'account_owner' => null,
            'account_iban' => null,
            'accepted_at' => null,
        ]));

        $this->assertFalse($response->success);
        $this->assertStringContainsString('bestätigt', $response->message);
    }

    /*
    |--------------------------------------------------------------------------
    | Inhalt
    |--------------------------------------------------------------------------
    */

    public function test_document_shows_amount_reason_and_bank_details(): void
    {
        $html = $this->html($this->makeRefund());

        $this->assertStringContainsString('300,00', $html);
        $this->assertStringContainsString('Krankheitsbedingte Absage', $html);
        $this->assertStringContainsString('Die Teilnahme konnte krankheitsbedingt nicht angetreten werden.', $html);
        $this->assertStringContainsString('Mika Muster', $html);
        // Im Beleg steht die IBAN in Vierergruppen.
        $this->assertStringContainsString('DE02 1203 0000 0000 2020 51', $html);
    }

    public function test_document_shows_event_period_and_cancellation_date(): void
    {
        $html = $this->html($this->makeRefund());

        $this->assertStringContainsString('Sommerlager', $html);
        $this->assertStringContainsString('16.07.2026 – 20.07.2026', $html);
        $this->assertStringContainsString('12.06.2026', $html);
        // Belegdatum ist der Tag der Bestätigung.
        $this->assertStringContainsString('18.06.2026', $html);
    }

    public function test_the_reason_is_a_row_in_the_table_not_a_block_below_it(): void
    {
        $refund = $this->makeRefund();

        $command = new CreateRefundDocumentCommand(new CreateRefundDocumentRequest($refund));
        $details = new ReflectionMethod($command, 'renderDetails')->invoke($command);

        $this->assertStringContainsString(
            '<td class="detail-key">Begründung</td>'
            . '<td class="detail-val">Die Teilnahme konnte krankheitsbedingt nicht angetreten werden.</td>',
            $details
        );

        // Der frühere Fließtext-Block unter der Tabelle ist verschwunden.
        $this->assertStringNotContainsString('reason-note', $details);
        $this->assertStringEndsWith('</table>', $details);
    }

    public function test_the_reason_row_is_dropped_when_there_is_no_text(): void
    {
        RefundReason::find(RefundReason::SICKNESS)->update(['document_text' => '']);

        $command = new CreateRefundDocumentCommand(new CreateRefundDocumentRequest($this->makeRefund()));
        $details = new ReflectionMethod($command, 'renderDetails')->invoke($command);

        // Eine Beschriftung ohne Wert sieht auf einem Beleg nach Fehler aus.
        $this->assertStringNotContainsString('Begründung', $details);
        $this->assertStringContainsString('Krankheitsbedingte Absage', $details);
    }

    public function test_the_table_lists_the_rows_in_reading_order(): void
    {
        $command = new CreateRefundDocumentCommand(new CreateRefundDocumentRequest($this->makeRefund()));
        $details = new ReflectionMethod($command, 'renderDetails')->invoke($command);

        preg_match_all('/<td class="detail-key">([^<]+)<\/td>/', $details, $matches);

        // Erst wer erklärt, dann worauf sich die Erstattung bezieht, dann warum, dann wohin das Geld geht.
        $this->assertSame(
            [
                'Name',
                'Gezahlter Teilnahmebeitrag',
                'Rechnung',
                'Erstattungsbetrag',
                'Grund',
                'Begründung',
                'Kontoinhaber*in',
                'IBAN',
            ],
            $matches[1]
        );
    }

    public function test_the_document_carries_no_contact_details(): void
    {
        // Für die Abrechnung genügen Name und Anschrift; E-Mail und Telefon gehören nicht auf einen
        // Beleg, der durch die Buchhaltung und ins Archiv wandert.
        $html = $this->html($this->makeRefund());

        $this->assertStringNotContainsString('mika@example.com', $html);
        $this->assertStringNotContainsString('0170 0000000', $html);
    }

    public function test_document_shows_the_paid_amount_next_to_the_refund(): void
    {
        // Teilerstattung: 220 von 300 gezahlten Euro.
        $html = $this->html($this->makeRefund(['amount' => 220.0]));

        $this->assertStringContainsString('300,00', $html);
        $this->assertStringContainsString('220,00', $html);
        // Die Nummer der Teilnahmerechnung, ohne das -R des Belegs.
        $this->assertStringContainsString('WM-V-20260701-0005', $html);
    }

    public function test_document_carries_the_declaration(): void
    {
        $html = $this->html($this->makeRefund());

        $this->assertStringContainsString('Ich versichere, dass ich den genannten Betrag beglichen habe', $html);
    }

    public function test_the_declaration_comes_from_the_page_text(): void
    {
        DB::table('page_texts')
            ->where('name', CreateRefundDocumentCommand::DECLARATION_TEXT)
            ->update(['content' => 'Eigener Wortlaut des Verbands.']);

        $this->assertStringContainsString('Eigener Wortlaut des Verbands.', $this->html($this->makeRefund()));
    }

    public function test_the_declaration_falls_back_when_the_page_text_is_missing(): void
    {
        // Ohne Rückfallwert stünde hier ein Fatal Error auf null -- der Beleg muss trotzdem entstehen.
        DB::table('page_texts')->where('name', CreateRefundDocumentCommand::DECLARATION_TEXT)->delete();

        $this->assertStringContainsString('Ich versichere', $this->html($this->makeRefund()));
    }

    public function test_free_text_reason_replaces_the_catalog_text(): void
    {
        $html = $this->html($this->makeRefund([
            'reason' => RefundReason::OTHER,
            'reason_note' => 'Umzug in ein anderes Bundesland',
        ]));

        $this->assertStringContainsString('Sonstiger Grund', $html);
        $this->assertStringContainsString('Umzug in ein anderes Bundesland', $html);
        $this->assertStringNotContainsString('krankheitsbedingt', $html);
    }

    public function test_sender_is_read_live_from_the_tenant(): void
    {
        $refund = $this->makeRefund();

        $this->tenant->update(['invoice_sender_name' => 'Neuer Name e.V.']);

        $this->assertStringContainsString('Neuer Name e.V.', $this->html($refund));
    }

    public function test_single_day_event_shows_one_date(): void
    {
        $html = $this->html($this->makeRefund(eventAttributes: [
            'start_date' => '2026-07-16',
            'end_date' => '2026-07-16',
        ]));

        $this->assertStringContainsString('16.07.2026', $html);
        $this->assertStringNotContainsString('–', $html);
    }

    /*
    |--------------------------------------------------------------------------
    | Katalog und Werte müssen dieselben Namen kennen
    |--------------------------------------------------------------------------
    */

    public function test_token_catalog_matches_the_generated_values(): void
    {
        $command = new CreateRefundDocumentCommand(new CreateRefundDocumentRequest($this->makeRefund()));
        $tokens = new ReflectionMethod($command, 'buildTokens')->invoke($command, 'WM-V-20260701-0005-R');

        $catalog = ParticipantRefundTokens::names();
        sort($catalog);

        $generated = array_keys($tokens);
        sort($generated);

        $this->assertSame($catalog, $generated);
    }
}