<?php

namespace Tests\Feature;

use App\Http\Middleware\VerifyCsrfToken;
use App\Models\User;
use App\Models\Video;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

/**
 * Phase 5 — Shorts.
 *
 * Guards against regressions in the deep-link route, the Home shelf, and
 * the branded 404 fallback.
 */
class Phase5ShortsTest extends TestCase
{
    use RefreshDatabase;

    protected function setUp(): void
    {
        putenv('DB_CONNECTION=sqlite');
        putenv('DB_DATABASE=:memory:');
        $_ENV['DB_CONNECTION'] = 'sqlite';
        $_ENV['DB_DATABASE']   = ':memory:';

        parent::setUp();

        $this->withoutMiddleware([
            VerifyCsrfToken::class,
            \Illuminate\Session\Middleware\AuthenticateSession::class,
        ]);
    }

    // ─── /shorts/{id} deep-link ──────────────────────

    public function test_shorts_deep_link_renders_feed_scrolled_to_target(): void
    {
        $owner = $this->makeUser();
        $short = $this->makeShort($owner, 'DEEP LINK SHORT');

        $html = $this->get(route('videos.shorts.focused', $short))->assertOk()->getContent();

        $this->assertStringContainsString('DEEP LINK SHORT', $html);
        // The in-page scroller is driven by data-id matching the start id.
        $this->assertStringContainsString('data-id="' . $short->id . '"', $html);
        $this->assertStringContainsString('scrollIntoView', $html);
    }

    public function test_shorts_deep_link_404s_on_non_short(): void
    {
        $owner = $this->makeUser();
        $regular = Video::create([
            'user_id'    => $owner->id,
            'title'      => 'not a short',
            'description'=> '',
            'filename'   => 'users/x/videos/y/video.mp4',
            'path'       => 'users/x/videos/y/video.mp4',
            'type'       => 'generic',
            'visibility' => 'public',
            'status'     => 'ready',
            'is_shorts'  => false,
            'share_token'=> bin2hex(random_bytes(8)),
        ]);

        $this->get('/shorts/' . Video::encodeId($regular->id))->assertStatus(404);
    }

    // ─── Home shelf ──────────────────────────────────

    public function test_home_shows_shorts_shelf_when_shorts_exist(): void
    {
        $owner = $this->makeUser();
        $s     = $this->makeShort($owner, 'SHELF SHORT');

        $html = $this->get(route('home'))->assertOk()->getContent();

        $this->assertStringContainsString('home-shorts-shelf', $html);
        $this->assertStringContainsString('SHELF SHORT', $html);
        $this->assertStringContainsString('/shorts/' . Video::encodeId($s->id), $html);
    }

    public function test_home_omits_shorts_shelf_when_no_shorts(): void
    {
        $owner = $this->makeUser();
        // A regular video so the home feed renders, but no shorts.
        Video::create([
            'user_id'    => $owner->id,
            'title'      => 'reg',
            'description'=> '',
            'filename'   => 'users/x/videos/y/video.mp4',
            'path'       => 'users/x/videos/y/video.mp4',
            'type'       => 'generic',
            'visibility' => 'public',
            'status'     => 'ready',
            'is_shorts'  => false,
            'share_token'=> bin2hex(random_bytes(8)),
        ]);

        $html = $this->get(route('home'))->assertOk()->getContent();

        $this->assertStringNotContainsString('home-shorts-shelf', $html);
    }

    // ─── Branded 404 ─────────────────────────────────

    public function test_unknown_url_renders_branded_404(): void
    {
        $r = $this->get('/no-such-page')->assertStatus(404);

        $r->assertSee('Error 404', false);
    }

    // ─── Helpers ─────────────────────────────────────

    private function makeUser(): User
    {
        return User::factory()->create([
            'username' => 'u'.substr(bin2hex(random_bytes(4)), 0, 8),
        ]);
    }

    private function makeShort(User $u, string $title): Video
    {
        return Video::create([
            'user_id'    => $u->id,
            'title'      => $title,
            'description'=> '',
            'filename'   => 'users/x/videos/'.substr(bin2hex(random_bytes(4)), 0, 8).'/video.mp4',
            'path'       => 'users/x/videos/'.substr(bin2hex(random_bytes(4)), 0, 8).'/video.mp4',
            'type'       => 'generic',
            'visibility' => 'public',
            'status'     => 'ready',
            'is_shorts'  => true,
            'duration'   => 45,
            'orientation'=> 'portrait',
            'share_token'=> bin2hex(random_bytes(8)),
        ]);
    }
}