<?php

namespace Tests\Unit\Services;

use App\Features\Consoles\Models\Console;
use App\Features\Games\Models\Game;
use App\Features\Scraper\Services\IGDBCoverScraper;
use App\Features\Scraper\Services\ScraperService;
use App\Features\Scraper\Services\TGDBCoverScraper;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Storage;
use PHPUnit\Framework\Attributes\Test;
use PHPUnit\Framework\MockObject\MockObject;
use Tests\TestCase;

class ScraperServiceTest extends TestCase
{
    private IGDBCoverScraper|MockObject $igdb;
    private TGDBCoverScraper|MockObject $tgdb;
    private ScraperService $service;

    protected function setUp(): void
    {
        parent::setUp();
        $this->igdb = $this->createMock(IGDBCoverScraper::class);
        $this->tgdb = $this->createMock(TGDBCoverScraper::class);
        $this->service = new ScraperService($this->igdb, $this->tgdb);
    }

    #[Test]
    public function it_searches_with_igdb_first(): void
    {
        $console = Console::factory()->create(['igdb_platform_id' => 21]);
        $expected = collect([['title' => 'Game']]);

        $this->igdb->expects($this->once())
            ->method('search')
            ->with('mario', 21)
            ->willReturn($expected);

        $results = $this->service->search('mario', $console->slug);

        $this->assertEquals($expected, $results);
    }

    #[Test]
    public function it_falls_back_to_tgdb_when_igdb_returns_empty(): void
    {
        $console = Console::factory()->create([
            'igdb_platform_id' => 21,
            'tgdb_platform_id' => 42,
        ]);
        $expected = collect([['title' => 'Game']]);

        $this->igdb->expects($this->once())
            ->method('search')
            ->willReturn(collect());

        $this->tgdb->expects($this->once())
            ->method('search')
            ->with('mario', 42)
            ->willReturn($expected);

        $results = $this->service->search('mario', $console->slug);

        $this->assertEquals($expected, $results);
    }

    #[Test]
    public function it_searches_without_console(): void
    {
        $expected = collect([['title' => 'Game']]);

        $this->igdb->expects($this->once())
            ->method('search')
            ->with('mario', null)
            ->willReturn($expected);

        $results = $this->service->search('mario');

        $this->assertEquals($expected, $results);
    }

    #[Test]
    public function it_scrapes_cover_for_game_with_igdb_id(): void
    {
        $game = Game::factory()->create(['igdb_id' => 123, 'tgdb_id' => null]);
        $game->load('console');

        $this->igdb->expects($this->once())
            ->method('getCoverUrl')
            ->with(123)
            ->willReturn('https://example.com/cover.jpg');

        $this->tgdb->expects($this->never())
            ->method('getCoverUrl');

        Http::fake([
            'https://example.com/cover.jpg' => Http::response('image-data'),
        ]);
        Storage::fake('local');

        $result = $this->service->scrapeForGame($game);

        $this->assertNotNull($result);
    }

    #[Test]
    public function it_falls_back_to_tgdb_for_cover(): void
    {
        $game = Game::factory()->create(['igdb_id' => 123, 'tgdb_id' => 456]);
        $game->load('console');

        $this->igdb->expects($this->once())
            ->method('getCoverUrl')
            ->with(123)
            ->willReturn(null);

        $this->tgdb->expects($this->once())
            ->method('getCoverUrl')
            ->with(456)
            ->willReturn('https://example.com/tgdb-cover.jpg');

        Http::fake([
            'https://example.com/tgdb-cover.jpg' => Http::response('image-data'),
        ]);
        Storage::fake('local');

        $result = $this->service->scrapeForGame($game);

        $this->assertNotNull($result);
    }

    #[Test]
    public function it_returns_null_when_no_cover_found(): void
    {
        $game = Game::factory()->create(['igdb_id' => 123, 'tgdb_id' => null]);
        $game->load('console');

        $this->igdb->expects($this->once())
            ->method('getCoverUrl')
            ->willReturn(null);

        $this->tgdb->expects($this->never())
            ->method('getCoverUrl');

        $result = $this->service->scrapeForGame($game);

        $this->assertNull($result);
    }

    #[Test]
    public function it_downloads_cover(): void
    {
        $game = Game::factory()->create(['slug' => 'super-mario']);
        $game->setRelation('console', Console::factory()->create(['slug' => 'nes']));

        Http::fake([
            'https://example.com/cover.jpg' => Http::response('image-data'),
        ]);
        Storage::fake('local');

        $path = $this->service->downloadCover('https://example.com/cover.jpg', $game);

        $this->assertEquals('covers/nes/super-mario-cover.jpg', $path);
        Storage::disk('local')->assertExists('covers/nes/super-mario-cover.jpg');
    }

    #[Test]
    public function it_returns_empty_string_on_download_failure(): void
    {
        $game = Game::factory()->create(['slug' => 'super-mario']);
        $game->setRelation('console', Console::factory()->create(['slug' => 'nes']));

        Http::fake([
            'https://example.com/cover.jpg' => fn () => throw new \Exception('Network error'),
        ]);
        Storage::fake('local');

        $path = $this->service->downloadCover('https://example.com/cover.jpg', $game);

        $this->assertEquals('', $path);
    }

    #[Test]
    public function it_downloads_cover_with_unknown_console(): void
    {
        $game = Game::factory()->create(['slug' => 'test-game']);
        $game->setRelation('console', null);

        Http::fake([
            'https://example.com/cover.jpg' => Http::response('image-data'),
        ]);
        Storage::fake('local');

        $path = $this->service->downloadCover('https://example.com/cover.jpg', $game);

        $this->assertEquals('covers/unknown/test-game-cover.jpg', $path);
    }
}