<?php

declare(strict_types=1);

namespace Tests\Feature\Git;

use App\Enums\GitProvider;
use App\Models\Repository;
use App\Services\Git\GitException;
use App\Services\Git\GitManager;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Http;
use PHPUnit\Framework\Attributes\Test;
use Tests\TestCase;

/**
 * The collective hosts its own Gitea, so this is the driver that matters.
 */
class GiteaSyncTest extends TestCase
{
    use RefreshDatabase;

    protected string $instance = 'https://git.pireon.test';

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

        config()->set('git.providers.gitea.url', $this->instance);
        config()->set('git.providers.gitea.token', 'a-token');
    }

    /**
     * @param  array<string, mixed>  $repo
     * @param  array<int, array<string, mixed>>  $issues
     * @param  array<int, array<string, mixed>>  $commits
     */
    protected function fakeGitea(array $repo = [], array $issues = [], array $commits = []): void
    {
        Http::fake([
            "{$this->instance}/api/v1/repos/*/languages" => Http::response(['PHP' => 90000, 'Blade' => 12000]),
            "{$this->instance}/api/v1/repos/*/topics" => Http::response(['topics' => ['laravel', 'comunidad']]),
            "{$this->instance}/api/v1/repos/*/issues*" => Http::response($issues),
            "{$this->instance}/api/v1/repos/*/commits*" => Http::response($commits ?: [
                ['author' => ['login' => 'ada'], 'commit' => ['author' => ['email' => 'ada@x.test']]],
                ['author' => ['login' => 'grace'], 'commit' => ['author' => ['email' => 'grace@x.test']]],
                ['author' => ['login' => 'ada'], 'commit' => ['author' => ['email' => 'ada@x.test']]],
            ]),
            "{$this->instance}/api/v1/repos/*" => Http::response([
                'full_name' => 'colectivo/web',
                'html_url' => "{$this->instance}/colectivo/web",
                'description' => 'La web del colectivo',
                'website' => 'https://colectivo.test',
                'default_branch' => 'main',
                'language' => 'PHP',
                // Gitea's counter names differ from GitHub's.
                'stars_count' => 42,
                'forks_count' => 3,
                'watchers_count' => 7,
                'open_issues_count' => 5,
                'archived' => false,
                'fork' => false,
                'updated_at' => '2026-08-01T10:00:00Z',
                'created_at' => '2024-01-01T00:00:00Z',
                ...$repo,
            ]),
        ]);
    }

    #[Test]
    public function it_reads_giteas_counter_names(): void
    {
        $this->fakeGitea();

        $repository = Repository::factory()->create([
            'provider' => GitProvider::Gitea,
            'full_name' => 'colectivo/web',
            'stars' => 0,
        ]);

        app(GitManager::class)->sync($repository);

        $repository->refresh();

        $this->assertSame(42, $repository->stars);
        $this->assertSame(3, $repository->forks);
        $this->assertSame(7, $repository->watchers);
        $this->assertSame(5, $repository->open_issues_count);
        $this->assertSame('PHP', $repository->primary_language);
        $this->assertSame(['laravel', 'comunidad'], $repository->topics);
        $this->assertSame('https://colectivo.test', $repository->homepage);
        $this->assertNull($repository->sync_error);
    }

    #[Test]
    public function it_authenticates_with_giteas_token_scheme(): void
    {
        $this->fakeGitea();

        app(GitManager::class)->sync(
            Repository::factory()->create(['provider' => GitProvider::Gitea, 'full_name' => 'colectivo/web'])
        );

        // Gitea expects "token <t>", not "Bearer <t>".
        Http::assertSent(fn ($request) => $request->hasHeader('Authorization', 'token a-token'));
    }

    #[Test]
    public function it_asks_gitea_to_exclude_pull_requests(): void
    {
        $this->fakeGitea();

        app(GitManager::class)->sync(
            Repository::factory()->create(['provider' => GitProvider::Gitea, 'full_name' => 'colectivo/web'])
        );

        // Unlike GitHub, Gitea can filter PRs server-side.
        Http::assertSent(fn ($request) => ! str_contains($request->url(), '/issues')
            || str_contains($request->url(), 'type=issues'));
    }

    #[Test]
    public function it_mirrors_only_newcomer_friendly_issues(): void
    {
        $this->fakeGitea(issues: [
            [
                'number' => 1, 'title' => 'Buena para empezar', 'html_url' => "{$this->instance}/x/1",
                'labels' => [['name' => 'good first issue']], 'comments' => 2,
                'user' => ['login' => 'ada'], 'assignees' => [],
                'created_at' => '2026-07-01T00:00:00Z', 'updated_at' => '2026-07-02T00:00:00Z',
            ],
            [
                'number' => 2, 'title' => 'Se busca ayuda', 'html_url' => "{$this->instance}/x/2",
                'labels' => [['name' => 'Se busca ayuda']], 'comments' => 0,
                'user' => ['login' => 'ada'],
                // Gitea reports assignees as a list.
                'assignees' => [['login' => 'grace']],
                'created_at' => '2026-07-01T00:00:00Z', 'updated_at' => '2026-07-02T00:00:00Z',
            ],
            [
                'number' => 3, 'title' => 'Refactor interno', 'html_url' => "{$this->instance}/x/3",
                'labels' => [['name' => 'chore']], 'comments' => 0,
                'user' => ['login' => 'ada'], 'assignees' => [],
                'created_at' => '2026-07-01T00:00:00Z', 'updated_at' => '2026-07-02T00:00:00Z',
            ],
        ]);

        $repository = Repository::factory()->create([
            'provider' => GitProvider::Gitea,
            'full_name' => 'colectivo/web',
        ]);

        app(GitManager::class)->sync($repository);

        $this->assertSame(2, $repository->issues()->count());
        $this->assertSame(1, $repository->goodFirstIssues()->count());

        // The Spanish label spelling from config/git.php matches too.
        $claimed = $repository->issues()->where('number', 2)->first();
        $this->assertTrue($claimed->is_help_wanted);
        $this->assertSame('grace', $claimed->assignee);
        $this->assertFalse($claimed->isUnclaimed());
    }

    #[Test]
    public function the_contributor_count_is_derived_from_distinct_commit_authors(): void
    {
        $this->fakeGitea();

        $repository = Repository::factory()->create([
            'provider' => GitProvider::Gitea,
            'full_name' => 'colectivo/web',
        ]);

        app(GitManager::class)->sync($repository);

        // Gitea has no contributors endpoint: three commits by two people.
        $this->assertSame(2, $repository->fresh()->contributors_count);
    }

    #[Test]
    public function commit_authors_without_an_account_still_count_once(): void
    {
        $this->fakeGitea(commits: [
            ['commit' => ['author' => ['email' => 'sin-cuenta@x.test']]],
            ['commit' => ['author' => ['email' => 'Sin-Cuenta@x.test']]],
            ['author' => ['login' => 'ada'], 'commit' => ['author' => ['email' => 'ada@x.test']]],
        ]);

        $repository = Repository::factory()->create([
            'provider' => GitProvider::Gitea,
            'full_name' => 'colectivo/web',
        ]);

        app(GitManager::class)->sync($repository);

        $this->assertSame(2, $repository->fresh()->contributors_count);
    }

    #[Test]
    public function a_private_repository_without_a_token_reports_the_real_cause(): void
    {
        Http::fake(["{$this->instance}/api/v1/repos/*" => Http::response([], 403)]);

        $repository = Repository::factory()->create([
            'provider' => GitProvider::Gitea,
            'full_name' => 'colectivo/privado',
        ]);

        try {
            app(GitManager::class)->sync($repository);
            $this->fail('Expected a GitException.');
        } catch (GitException $e) {
            $this->assertSame(403, $e->status);
            $this->assertStringContainsString('GITEA_TOKEN', $e->getMessage());
        }
    }

    #[Test]
    public function an_instance_that_is_down_is_treated_as_transient(): void
    {
        Http::fake(["{$this->instance}/api/v1/repos/*" => Http::response([], 502)]);

        $repository = Repository::factory()->create([
            'provider' => GitProvider::Gitea,
            'full_name' => 'colectivo/web',
        ]);

        try {
            app(GitManager::class)->sync($repository);
            $this->fail('Expected a GitException.');
        } catch (GitException $e) {
            // Self-hosted instances restart; the job should retry, not give up.
            $this->assertTrue($e->isTransient);
        }
    }

    #[Test]
    public function without_an_instance_url_gitea_is_not_offered_as_a_provider(): void
    {
        config()->set('git.providers.gitea.url', null);

        // A driver with nowhere to point is worse than no driver: it would
        // only produce failures later.
        $this->assertFalse(GitProvider::Gitea->isSupported());

        $repository = Repository::factory()->create(['provider' => GitProvider::Gitea]);

        $this->expectException(GitException::class);
        $this->expectExceptionMessage('GITEA_URL');

        app(GitManager::class)->sync($repository);
    }

    #[Test]
    public function a_bare_name_is_qualified_with_the_configured_org(): void
    {
        config()->set('git.providers.gitea.default_owner', 'colectivo');

        $this->fakeGitea();

        $repository = Repository::factory()->create([
            'provider' => GitProvider::Gitea,
            'full_name' => 'web',
        ]);

        app(GitManager::class)->sync($repository);

        $this->assertSame('colectivo/web', $repository->fresh()->full_name);
        Http::assertSent(fn ($r) => str_contains($r->url(), '/repos/colectivo/web'));
    }

    #[Test]
    public function gitea_is_the_default_provider(): void
    {
        $this->assertSame(GitProvider::Gitea, GitProvider::default());
        $this->assertSame('gitea', Repository::factory()->create()->provider->value);
    }
}