<?php

namespace Tests\Feature;

use App\Domains\Invoice\Actions\CreateInvoice\CreateInvoiceCommand;
use App\Domains\Invoice\Actions\CreateInvoice\CreateInvoiceRequest;
use App\Domains\Invoice\Actions\CreateInvoice\CreateInvoiceResponse;
use App\Enumerations\CostUnitType;
use App\Enumerations\InvoiceStatus;
use App\Enumerations\InvoiceType;
use App\Enumerations\TravelReason;
use App\Models\CostUnit;
use App\Models\Invoice;
use App\Models\Tenant;
use App\Resources\InvoiceResource;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Mail;
use Tests\TestCase;

/**
 * Der Reisegrund ist eine Auswahl, kein Freitext mehr.
 *
 * Gespeichert wird der Schlüssel des Grundes -- außer bei "Anderer Grund": Der Schlüssel `other` sagt
 * für sich nichts aus, deshalb steht dort der Text. Dieselbe Spalte führt damit weiter den Freitext der
 * Bestandsbelege, ohne dass etwas umgeschrieben werden musste.
 */
class TravelReasonTest extends TestCase
{
    use RefreshDatabase;

    private Tenant $tenant;

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

        $this->tenant = Tenant::create([
            'slug' => 'wm',
            'name' => 'Wilde Möhre',
            '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' => 'Stadt',
            'postcode' => '00000',
            'invoice_prefix' => 'WM',
            'is_active_local_group' => true,
            'has_active_instance' => true,
        ]);

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

        DB::table('cost_unit_types')->insert(['slug' => CostUnitType::COST_UNIT_TYPE_EVENT, 'name' => 'Veranstaltung']);
        DB::table('invoice_status')->insert(['slug' => InvoiceStatus::INVOICE_STATUS_NEW]);
        DB::table('invoice_types')->insert([
            'slug' => InvoiceType::INVOICE_TYPE_TRAVELLING,
            'name' => 'Fahrtkosten',
            'sort_order' => 1,
            'selectable' => true,
            'counts_as_expense' => true,
        ]);

        Mail::fake();
    }

    private function makeCostUnit(): CostUnit
    {
        return CostUnit::create([
            'tenant' => $this->tenant->slug,
            'name' => 'Sommerlager',
            'type' => CostUnitType::COST_UNIT_TYPE_EVENT,
            'distance_allowance' => 0.25,
            'mail_on_new' => false,
            'allow_new' => true,
            'archived' => false,
        ]);
    }

    /**
     * Der Weg, den eine eingereichte Fahrtkostenabrechnung nimmt. `contactEmail` bleibt leer, damit kein
     * Bestätigungsmailversand mitläuft.
     */
    private function submit(?string $reason, ?string $note = null, ?string $travellers = 'Mika und Kim'): CreateInvoiceResponse
    {
        return new CreateInvoiceCommand(new CreateInvoiceRequest(
            costUnit: $this->makeCostUnit(),
            contactName: 'Max Mustermann',
            invoiceType: InvoiceType::INVOICE_TYPE_TRAVELLING,
            totalAmount: 42.0,
            receiptFile: null,
            isDonation: false,
            travelRoute: 'Halle – Leipzig',
            travelReason: $reason,
            travelReasonNote: $note,
            travellers: $travellers,
        ))->execute();
    }

    /*
    |--------------------------------------------------------------------------
    | Die Auswahl
    |--------------------------------------------------------------------------
    */

    public function test_the_options_are_ordered_and_only_the_last_one_needs_a_note(): void
    {
        $options = TravelReason::options();

        $this->assertSame(
            ['event_travel', 'material_transport', 'purchase', 'other'],
            array_column($options, 'value')
        );
        $this->assertSame('An-/Abreise zur Veranstaltung', $options[0]['label']);
        $this->assertSame([false, false, false, true], array_column($options, 'requiresNote'));
    }

    /*
    |--------------------------------------------------------------------------
    | Was gespeichert wird
    |--------------------------------------------------------------------------
    */

    public function test_a_fixed_reason_is_stored_as_its_key(): void
    {
        $invoice = $this->submit(TravelReason::MATERIAL_TRANSPORT)->invoice;

        $this->assertSame(TravelReason::MATERIAL_TRANSPORT, $invoice->travel_reason);
    }

    public function test_the_purpose_carries_the_name_not_the_key(): void
    {
        // In der Belegliste soll "Materialtransport" stehen, nicht "material_transport".
        $invoice = $this->submit(TravelReason::MATERIAL_TRANSPORT)->invoice;

        $this->assertSame('Materialtransport — Mika und Kim', $invoice->purpose);
    }

    public function test_another_reason_stores_the_text_instead_of_the_key(): void
    {
        $invoice = $this->submit(TravelReason::OTHER, 'Abholung der Ausrüstung')->invoice;

        $this->assertSame('Abholung der Ausrüstung', $invoice->travel_reason);
        $this->assertSame('Abholung der Ausrüstung — Mika und Kim', $invoice->purpose);
    }

    public function test_another_reason_without_a_text_creates_nothing(): void
    {
        // Sicherheitsnetz hinter der Oberfläche: Dort geht es ohne Erläuterung nicht weiter.
        $response = $this->submit(TravelReason::OTHER, '   ');

        $this->assertFalse($response->success);
        $this->assertNull($response->invoice);
        $this->assertSame(0, Invoice::count());
        $this->assertNotNull($response->message);
    }

    public function test_an_unknown_value_passes_through_unchanged(): void
    {
        // Bestandsbelege und ihre Kopien bringen ihren Freitext schon mit.
        $invoice = $this->submit('Fahrt zum Landeslager')->invoice;

        $this->assertSame('Fahrt zum Landeslager', $invoice->travel_reason);
        $this->assertSame('Fahrt zum Landeslager — Mika und Kim', $invoice->purpose);
    }

    /*
    |--------------------------------------------------------------------------
    | Was angezeigt wird
    |--------------------------------------------------------------------------
    */

    public function test_a_key_is_shown_as_its_name(): void
    {
        $invoice = $this->submit(TravelReason::EVENT_TRAVEL)->invoice;

        $this->assertSame('An-/Abreise zur Veranstaltung', $invoice->travelReasonText());
        $this->assertSame(
            'An-/Abreise zur Veranstaltung',
            new InvoiceResource($invoice)->toArray()['travelReason']
        );
    }

    public function test_free_text_is_shown_as_itself(): void
    {
        $invoice = $this->submit('Fahrt zum Landeslager')->invoice;

        $this->assertSame('Fahrt zum Landeslager', $invoice->travelReasonText());
    }
}