<?php

use App\Models\Setting;
use App\Models\Song;
use App\Models\SongSlide;
use App\Services\CcliImportService;
use App\Services\CcliPasteParser;
use App\Services\DTO\ParsedCcliSong;
use Illuminate\Foundation\Testing\RefreshDatabase;

uses(RefreshDatabase::class);

/**
 * A real CCLI page that carries only metadata (title + CCLI number) but no
 * lyric/section labels — e.g. an instrumental or a stub song.
 */
function metadataOnlyPaste(): string
{
    return <<<'TXT'
    Instrumental Intro

    © 2024 Test Publishing House
    CCLI # 9999500
    TXT;
}

test('parser akzeptiert Metadaten-only Paste ohne zu werfen und liefert leere Sektionen', function (): void {
    $parser = new CcliPasteParser;

    $result = $parser->parse(metadataOnlyPaste());

    expect($result)->toBeInstanceOf(ParsedCcliSong::class)
        ->and($result->title)->toBe('Instrumental Intro')
        ->and($result->ccliId)->toBe('9999500')
        ->and($result->year)->toBe('2024')
        ->and($result->sections)->toBe([]);
});

test('parser wirft weiterhin wenn weder Titel noch CCLI vorhanden', function (): void {
    $parser = new CcliPasteParser;

    expect(fn () => $parser->parse("   \n  \n"))
        ->toThrow(InvalidArgumentException::class);
});

test('import von Metadaten-only erzeugt Song ohne Inhalts-Sektionen aber mit Copyright+Blank', function (): void {
    $service = app(CcliImportService::class);

    $result = $service->import(metadataOnlyPaste());
    $song = $result['song']->fresh();

    expect($result['status'])->toBe('created')
        ->and($song->ccli_id)->toBe('9999500')
        ->and($song->has_translation)->toBeFalse();

    // normal-Arrangement existiert trotz fehlender Inhalts-Sektionen.
    $arrangement = $song->arrangements()->where('name', 'normal')->first();
    expect($arrangement)->not->toBeNull()
        ->and($arrangement->is_default)->toBeTrue();

    // Genau zwei Folien: eine COPYRIGHT-Folie, eine BLANK-Folie.
    expect(SongSlide::count())->toBe(2);

    $prefixLabelId = (int) Setting::get('song_prefix_label_id');
    $copyrightSlide = $song->sections()
        ->where('label_id', $prefixLabelId)
        ->first()
        ->slides()
        ->first();

    expect($copyrightSlide->text_content)->toContain('Instrumental Intro')
        ->and($copyrightSlide->text_content)->toContain('CCLI-Liednr. 9999500');
});

test('songHasContent bleibt false fuer Metadaten-only Song (Duplikat-Guard behandelt als leer)', function (): void {
    $service = app(CcliImportService::class);

    // Erster Import legt den leeren Song an.
    $service->import(metadataOnlyPaste());

    // Zweiter Import darf NICHT als Duplikat geworfen werden, da kein Inhalt.
    // Status 'restored' (Song existiert), aber keine DuplicateCcliSongException.
    $result = $service->import(metadataOnlyPaste());

    expect($result['status'])->toBe('restored')
        ->and(Song::where('ccli_id', '9999500')->count())->toBe(1);
});