<?php

use App\Models\Song;
use App\Models\SongArrangement;
use App\Models\SongArrangementGroup;
use App\Models\SongGroup;
use App\Models\SongSlide;
use App\Models\User;

/*
|--------------------------------------------------------------------------
| Song PDF Download Tests
|--------------------------------------------------------------------------
*/

beforeEach(function () {
    $this->user = User::factory()->create();
});

test('song pdf download returns pdf with correct content type', function () {
    $song = Song::factory()->create(['title' => 'Amazing Grace']);
    $arrangement = SongArrangement::factory()->create([
        'song_id' => $song->id,
        'name' => 'Normal',
    ]);

    $group = SongGroup::factory()->create([
        'song_id' => $song->id,
        'name' => 'Verse 1',
        'color' => '#3B82F6',
        'order' => 1,
    ]);

    SongSlide::factory()->create([
        'song_group_id' => $group->id,
        'order' => 1,
        'text_content' => 'Amazing grace how sweet the sound',
    ]);

    SongArrangementGroup::factory()->create([
        'song_arrangement_id' => $arrangement->id,
        'song_group_id' => $group->id,
        'order' => 1,
    ]);

    $response = $this->actingAs($this->user)
        ->get(route('songs.pdf', [$song, $arrangement]));

    $response->assertOk();
    $response->assertHeader('Content-Type', 'application/pdf');
});

test('song pdf contains song title in filename', function () {
    $song = Song::factory()->create(['title' => 'Amazing Grace']);
    $arrangement = SongArrangement::factory()->create([
        'song_id' => $song->id,
        'name' => 'Normal',
    ]);

    $response = $this->actingAs($this->user)
        ->get(route('songs.pdf', [$song, $arrangement]));

    $response->assertOk();
    $contentDisposition = $response->headers->get('Content-Disposition');
    expect($contentDisposition)->toContain('amazing-grace');
    expect($contentDisposition)->toContain('normal');
});

test('song pdf includes arrangement groups in order', function () {
    $song = Song::factory()->create(['title' => 'Großer Gott']);
    $arrangement = SongArrangement::factory()->create([
        'song_id' => $song->id,
        'name' => 'Normal',
    ]);

    $verse = SongGroup::factory()->create([
        'song_id' => $song->id,
        'name' => 'Strophe 1',
        'color' => '#3B82F6',
        'order' => 1,
    ]);

    $chorus = SongGroup::factory()->create([
        'song_id' => $song->id,
        'name' => 'Refrain',
        'color' => '#10B981',
        'order' => 2,
    ]);

    SongSlide::factory()->create([
        'song_group_id' => $verse->id,
        'order' => 1,
        'text_content' => 'Großer Gott wir loben dich',
    ]);

    SongSlide::factory()->create([
        'song_group_id' => $chorus->id,
        'order' => 1,
        'text_content' => 'Heilig heilig heilig',
    ]);

    // Arrangement: Strophe 1 -> Refrain
    SongArrangementGroup::factory()->create([
        'song_arrangement_id' => $arrangement->id,
        'song_group_id' => $verse->id,
        'order' => 1,
    ]);

    SongArrangementGroup::factory()->create([
        'song_arrangement_id' => $arrangement->id,
        'song_group_id' => $chorus->id,
        'order' => 2,
    ]);

    $response = $this->actingAs($this->user)
        ->get(route('songs.pdf', [$song, $arrangement]));

    $response->assertOk();
    $response->assertHeader('Content-Type', 'application/pdf');
});

test('song pdf includes translated text when present', function () {
    $song = Song::factory()->create([
        'title' => 'Amazing Grace',
        'has_translation' => true,
    ]);

    $arrangement = SongArrangement::factory()->create([
        'song_id' => $song->id,
        'name' => 'Normal',
    ]);

    $group = SongGroup::factory()->create([
        'song_id' => $song->id,
        'name' => 'Verse 1',
        'order' => 1,
    ]);

    SongSlide::factory()->create([
        'song_group_id' => $group->id,
        'order' => 1,
        'text_content' => 'Amazing grace how sweet the sound',
        'text_content_translated' => 'Erstaunliche Gnade wie süß der Klang',
    ]);

    SongArrangementGroup::factory()->create([
        'song_arrangement_id' => $arrangement->id,
        'song_group_id' => $group->id,
        'order' => 1,
    ]);

    $response = $this->actingAs($this->user)
        ->get(route('songs.pdf', [$song, $arrangement]));

    $response->assertOk();
    $response->assertHeader('Content-Type', 'application/pdf');
});

test('song pdf includes copyright footer', function () {
    $song = Song::factory()->create([
        'title' => 'Amazing Grace',
        'copyright_text' => 'John Newton, 1779',
        'ccli_id' => '22025',
    ]);

    $arrangement = SongArrangement::factory()->create([
        'song_id' => $song->id,
        'name' => 'Normal',
    ]);

    $response = $this->actingAs($this->user)
        ->get(route('songs.pdf', [$song, $arrangement]));

    $response->assertOk();
    $response->assertHeader('Content-Type', 'application/pdf');
});

test('song pdf returns 404 when arrangement does not belong to song', function () {
    $song = Song::factory()->create();
    $otherSong = Song::factory()->create();
    $arrangement = SongArrangement::factory()->create([
        'song_id' => $otherSong->id,
    ]);

    $response = $this->actingAs($this->user)
        ->get(route('songs.pdf', [$song, $arrangement]));

    $response->assertNotFound();
});

test('song pdf requires authentication', function () {
    $song = Song::factory()->create();
    $arrangement = SongArrangement::factory()->create([
        'song_id' => $song->id,
    ]);

    $response = $this->get(route('songs.pdf', [$song, $arrangement]));

    $response->assertRedirect(route('login'));
});

test('song pdf handles german umlauts correctly', function () {
    $song = Song::factory()->create([
        'title' => 'Großer Gott wir loben dich',
        'copyright_text' => 'Überliefert',
    ]);

    $arrangement = SongArrangement::factory()->create([
        'song_id' => $song->id,
        'name' => 'Übung',
    ]);

    $group = SongGroup::factory()->create([
        'song_id' => $song->id,
        'name' => 'Strophe 1',
        'order' => 1,
    ]);

    SongSlide::factory()->create([
        'song_group_id' => $group->id,
        'order' => 1,
        'text_content' => 'Großer Gott wir loben dich',
    ]);

    SongArrangementGroup::factory()->create([
        'song_arrangement_id' => $arrangement->id,
        'song_group_id' => $group->id,
        'order' => 1,
    ]);

    $response = $this->actingAs($this->user)
        ->get(route('songs.pdf', [$song, $arrangement]));

    $response->assertOk();
    $response->assertHeader('Content-Type', 'application/pdf');

    // Filename should contain slug with umlauts handled
    $contentDisposition = $response->headers->get('Content-Disposition');
    expect($contentDisposition)->toContain('.pdf');
});

test('song pdf works with empty arrangement (no groups)', function () {
    $song = Song::factory()->create(['title' => 'Empty Song']);
    $arrangement = SongArrangement::factory()->create([
        'song_id' => $song->id,
        'name' => 'Leer',
    ]);

    $response = $this->actingAs($this->user)
        ->get(route('songs.pdf', [$song, $arrangement]));

    $response->assertOk();
    $response->assertHeader('Content-Type', 'application/pdf');
});

test('song preview returns json with groups in arrangement order', function () {
    $song = Song::factory()->create([
        'title' => 'Testlied',
        'copyright_text' => 'Test Copyright',
        'ccli_id' => '123456',
    ]);

    $verse = SongGroup::factory()->create([
        'song_id' => $song->id,
        'name' => 'Strophe 1',
        'color' => '#3b82f6',
    ]);

    $chorus = SongGroup::factory()->create([
        'song_id' => $song->id,
        'name' => 'Refrain',
        'color' => '#ef4444',
    ]);

    SongSlide::factory()->create([
        'song_group_id' => $verse->id,
        'order' => 1,
        'text_content' => 'Strophe Text',
    ]);

    SongSlide::factory()->create([
        'song_group_id' => $chorus->id,
        'order' => 1,
        'text_content' => 'Refrain Text',
    ]);

    $arrangement = SongArrangement::factory()->create([
        'song_id' => $song->id,
        'name' => 'Normal',
    ]);

    // Order: Chorus first, then Verse
    SongArrangementGroup::factory()->create([
        'song_arrangement_id' => $arrangement->id,
        'song_group_id' => $chorus->id,
        'order' => 1,
    ]);

    SongArrangementGroup::factory()->create([
        'song_arrangement_id' => $arrangement->id,
        'song_group_id' => $verse->id,
        'order' => 2,
    ]);

    $response = $this->actingAs($this->user)->getJson(route('songs.preview', [$song, $arrangement]));

    $response->assertOk();
    $response->assertJsonStructure([
        'song' => ['id', 'title', 'copyright_text', 'ccli_id'],
        'arrangement' => ['id', 'name'],
        'groups' => [
            '*' => [
                'name',
                'color',
                'slides' => [
                    '*' => ['text_content', 'text_content_translated'],
                ],
            ],
        ],
    ]);

    // Chorus should be first (order=1), Verse second (order=2)
    $data = $response->json();
    expect($data['groups'][0]['name'])->toBe('Refrain');
    expect($data['groups'][1]['name'])->toBe('Strophe 1');
    expect($data['groups'][0]['slides'][0]['text_content'])->toBe('Refrain Text');
});

test('song preview includes translation text when slides have translations', function () {
    $song = Song::factory()->create(['title' => 'Lied mit Übersetzung']);

    $group = SongGroup::factory()->create([
        'song_id' => $song->id,
        'name' => 'Verse',
    ]);

    SongSlide::factory()->create([
        'song_group_id' => $group->id,
        'order' => 1,
        'text_content' => 'Original Text',
        'text_content_translated' => 'Translated Text',
    ]);

    $arrangement = SongArrangement::factory()->create([
        'song_id' => $song->id,
    ]);

    SongArrangementGroup::factory()->create([
        'song_arrangement_id' => $arrangement->id,
        'song_group_id' => $group->id,
        'order' => 1,
    ]);

    $response = $this->actingAs($this->user)->getJson(route('songs.preview', [$song, $arrangement]));

    $response->assertOk();
    $data = $response->json();
    expect($data['groups'][0]['slides'][0]['text_content'])->toBe('Original Text');
    expect($data['groups'][0]['slides'][0]['text_content_translated'])->toBe('Translated Text');
});

test('song preview returns 404 when arrangement does not belong to song', function () {
    $song = Song::factory()->create();
    $otherSong = Song::factory()->create();
    $arrangement = SongArrangement::factory()->create(['song_id' => $otherSong->id]);

    $response = $this->actingAs($this->user)->getJson(route('songs.preview', [$song, $arrangement]));

    $response->assertNotFound();
});

test('song preview requires authentication', function () {
    $song = Song::factory()->create();
    $arrangement = SongArrangement::factory()->create(['song_id' => $song->id]);

    $response = $this->getJson(route('songs.preview', [$song, $arrangement]));

    $response->assertUnauthorized();
});