<?php

namespace Tests\Feature;

use App\Jobs\ProcessTrackingPayload;
use App\Models\Website;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Bus;
use Tests\TestCase;

class CollectControllerTest extends TestCase
{
    use RefreshDatabase;

    private Website $website;

    protected function setUp(): void
    {
        parent::setUp();
        $this->website = Website::factory()->create(['domain' => 'example.com']);
    }

    private function validPayload(array $overrides = []): array
    {
        return array_merge([
            'tid' => $this->website->tracking_id,
            'vid' => 'visitor-abc-123',
            'sid' => 'session-abc-123',
            'type' => 'pageview',
            'url' => 'https://example.com/hello',
            'path' => '/hello',
            'title' => 'Hello Page',
        ], $overrides);
    }

    // -- Store endpoint --

    public function test_valid_pageview_payload_dispatches_job(): void
    {
        Bus::fake();

        $response = $this->postJson('/api/collect', $this->validPayload());

        $response->assertOk()->assertJson(['ok' => true]);
        Bus::assertDispatched(ProcessTrackingPayload::class);
    }

    public function test_valid_event_payload_dispatches_job(): void
    {
        Bus::fake();

        $response = $this->postJson('/api/collect', $this->validPayload([
            'type' => 'event',
            'event_name' => 'signup',
            'event_category' => 'conversion',
        ]));

        $response->assertOk()->assertJson(['ok' => true]);
        Bus::assertDispatched(ProcessTrackingPayload::class);
    }

    public function test_missing_required_fields_returns_validation_error(): void
    {
        $response = $this->postJson('/api/collect', []);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors(['tid', 'vid', 'sid', 'type']);
    }

    public function test_invalid_type_returns_validation_error(): void
    {
        $response = $this->postJson('/api/collect', $this->validPayload([
            'type' => 'invalid_type',
        ]));

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors(['type']);
    }

    public function test_domain_mismatch_returns_error(): void
    {
        Bus::fake();

        $response = $this->postJson('/api/collect', $this->validPayload([
            'url' => 'https://evil-site.com/phishing',
        ]));

        $response->assertStatus(400);
        $response->assertJson(['ok' => false, 'reason' => 'domain_mismatch']);
        Bus::assertNotDispatched(ProcessTrackingPayload::class);
    }

    public function test_subdomain_is_allowed(): void
    {
        Bus::fake();

        $response = $this->postJson('/api/collect', $this->validPayload([
            'url' => 'https://www.example.com/page',
        ]));

        $response->assertOk()->assertJson(['ok' => true]);
        Bus::assertDispatched(ProcessTrackingPayload::class);
    }

    public function test_unknown_tracking_id_still_succeeds(): void
    {
        Bus::fake();

        $response = $this->postJson('/api/collect', $this->validPayload([
            'tid' => 'TA-NONEXISTENT',
            'url' => null,
        ]));

        $response->assertOk()->assertJson(['ok' => true]);
        Bus::assertDispatched(ProcessTrackingPayload::class);
    }

    public function test_bot_requests_are_rejected(): void
    {
        Bus::fake();

        $response = $this->postJson('/api/collect', $this->validPayload(), [
            'User-Agent' => 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)',
        ]);

        $response->assertOk()->assertJson(['ok' => false, 'reason' => 'bot']);
        Bus::assertNotDispatched(ProcessTrackingPayload::class);
    }

    public function test_payload_with_utm_parameters(): void
    {
        Bus::fake();

        $response = $this->postJson('/api/collect', $this->validPayload([
            'utm_source' => 'google',
            'utm_medium' => 'cpc',
            'utm_campaign' => 'spring_sale',
            'utm_term' => 'shoes',
            'utm_content' => 'ad_v1',
        ]));

        $response->assertOk()->assertJson(['ok' => true]);
        Bus::assertDispatched(ProcessTrackingPayload::class);
    }

    // -- Pixel endpoint --

    public function test_pixel_returns_gif(): void
    {
        Bus::fake();

        $response = $this->get('/api/pixel?tid='.$this->website->tracking_id);

        $response->assertOk();
        $response->assertHeader('Content-Type', 'image/gif');
        Bus::assertDispatched(ProcessTrackingPayload::class);
    }

    public function test_pixel_without_tid_returns_gif_without_dispatching(): void
    {
        Bus::fake();

        $response = $this->get('/api/pixel');

        $response->assertOk();
        $response->assertHeader('Content-Type', 'image/gif');
        Bus::assertNotDispatched(ProcessTrackingPayload::class);
    }

    public function test_pixel_rejects_bots(): void
    {
        Bus::fake();

        $response = $this->get('/api/pixel?tid='.$this->website->tracking_id, [
            'User-Agent' => 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)',
        ]);

        $response->assertOk();
        $response->assertHeader('Content-Type', 'image/gif');
        Bus::assertNotDispatched(ProcessTrackingPayload::class);
    }
}