<?php

declare(strict_types=1);

namespace Tests\Feature\PublicSite;

use App\Domain\Contact\MarketingOrigin;
use App\Mail\ContactBriefing;
use App\Mail\ContactBriefingConfirmation;
use App\Models\SiteSetting;
use Illuminate\Foundation\Http\Middleware\PreventRequestForgery;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Routing\Middleware\ThrottleRequests;
use Illuminate\Support\Facades\Mail;
use Tests\TestCase;

/**
 * Covers MAN-105 — simple marketing-origin tracking that rides along
 * with the briefing e-mail (SPEC.md WEB-05). No Lead model, no CRM
 * surface: the origin never outlives the session/e-mail round trip.
 */
class ContactBriefingOriginTest extends TestCase
{
    use RefreshDatabase;

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

        $this->withoutMiddleware([ThrottleRequests::class, PreventRequestForgery::class]);
    }

    /**
     * @param  array<string, mixed>  $overrides
     * @return array<string, mixed>
     */
    private function validPayload(array $overrides = []): array
    {
        return array_merge([
            'nome' => 'Maria Silva',
            'email' => 'maria@example.com',
            'telefone' => '(11) 98888-7777',
            'tipo_evento' => 'Casamento',
            'data_periodo' => 'novembro de 2027',
            'cidade' => 'São Paulo',
            'convidados' => '120',
            'servico_interesse' => 'Planejamento completo',
            'mensagem' => 'Queremos um casamento ao ar livre para 120 convidados.',
            'privacidade' => '1',
            'empresa' => '',
        ], $overrides);
    }

    public function test_utm_parameters_present_on_arrival_reach_the_briefing_email(): void
    {
        SiteSetting::instance();
        Mail::fake();

        $this->get('/briefing?utm_source=instagram&utm_medium=social&utm_campaign=lancamento-2026')
            ->assertOk();

        $this->post(route('briefing.store'), $this->validPayload())
            ->assertRedirect(route('briefing'))
            ->assertSessionHas('status', 'briefing-sent');

        Mail::assertQueued(ContactBriefing::class, function (ContactBriefing $mail): bool {
            $origin = $mail->fields['Origem de marketing'];

            return $origin === 'origem: instagram | mídia: social | campanha: lancamento-2026';
        });
    }

    public function test_no_utm_or_referrer_still_submits_and_omits_the_origin(): void
    {
        SiteSetting::instance();
        Mail::fake();

        // No GET beforehand: posting cold, exactly like a direct/no-JS submission.
        $response = $this->post(route('briefing.store'), $this->validPayload());

        $response
            ->assertRedirect(route('briefing'))
            ->assertSessionHas('status', 'briefing-sent');

        Mail::assertQueued(ContactBriefing::class, function (ContactBriefing $mail): bool {
            return array_key_exists('Origem de marketing', $mail->fields)
                && $mail->fields['Origem de marketing'] === null;
        });
    }

    public function test_referrer_only_visit_records_only_the_referring_site_as_origin(): void
    {
        SiteSetting::instance();
        Mail::fake();

        // The query string is a personalized campaign link (carries an
        // identifiable e-mail/subscriber id) — only the site identity may
        // be captured as marketing origin, never the query string itself.
        $this->withHeader('referer', 'https://mail.example.com/click?email=maria%40example.com&subscriber_id=42')
            ->get('/briefing')
            ->assertOk();

        $this->post(route('briefing.store'), $this->validPayload())
            ->assertRedirect(route('briefing'))
            ->assertSessionHas('status', 'briefing-sent');

        Mail::assertQueued(ContactBriefing::class, function (ContactBriefing $mail): bool {
            return $mail->fields['Origem de marketing'] === 'https://mail.example.com';
        });
    }

    public function test_first_touch_wins_when_later_navigation_has_no_utm(): void
    {
        SiteSetting::instance();
        Mail::fake();

        $this->get('/briefing?utm_source=google&utm_medium=cpc')
            ->assertOk();

        // Navigate elsewhere with no UTM parameters at all before submitting.
        $this->get('/servicos')->assertOk();
        $this->get('/sobre')->assertOk();

        $this->post(route('briefing.store'), $this->validPayload())
            ->assertRedirect(route('briefing'))
            ->assertSessionHas('status', 'briefing-sent');

        Mail::assertQueued(ContactBriefing::class, function (ContactBriefing $mail): bool {
            return $mail->fields['Origem de marketing'] === 'origem: google | mídia: cpc';
        });
    }

    public function test_first_touch_wins_when_later_navigation_carries_a_competing_utm(): void
    {
        SiteSetting::instance();
        Mail::fake();

        $this->get('/briefing?utm_source=google&utm_medium=cpc')
            ->assertOk();

        // A second page load with its own, different UTM parameters must
        // not overwrite what was captured on first touch.
        $this->get('/briefing?utm_source=facebook&utm_medium=social')
            ->assertOk();

        $this->post(route('briefing.store'), $this->validPayload())
            ->assertRedirect(route('briefing'))
            ->assertSessionHas('status', 'briefing-sent');

        Mail::assertQueued(ContactBriefing::class, function (ContactBriefing $mail): bool {
            return $mail->fields['Origem de marketing'] === 'origem: google | mídia: cpc';
        });
    }

    public function test_confirmation_email_never_exposes_the_marketing_origin(): void
    {
        $settings = SiteSetting::instance();
        Mail::fake();

        $this->get('/briefing?utm_source=instagram&utm_campaign=segredo-interno')
            ->assertOk();

        $this->post(route('briefing.store'), $this->validPayload())
            ->assertRedirect(route('briefing'))
            ->assertSessionHas('status', 'briefing-sent');

        Mail::assertQueued(ContactBriefingConfirmation::class, function (ContactBriefingConfirmation $mail): bool {
            $rendered = $mail->render();

            return ! str_contains($rendered, 'instagram') && ! str_contains($rendered, 'segredo-interno');
        });

        // The internal briefing mail is the only one carrying the origin.
        Mail::assertQueued(ContactBriefing::class, function (ContactBriefing $mail) use ($settings): bool {
            return $mail->hasTo($settings->email)
                && str_contains((string) $mail->fields['Origem de marketing'], 'segredo-interno');
        });
    }

    public function test_fail_open_when_stored_marketing_origin_is_corrupted(): void
    {
        SiteSetting::instance();
        Mail::fake();

        // Simulates the session value having been tampered with or
        // corrupted (e.g. by an unrelated bug) into something that is not
        // the array shape the controller expects. The acceptance
        // criterion is that this never blocks the submission.
        $response = $this->withSession([MarketingOrigin::SESSION_KEY => 'lixo'])
            ->post(route('briefing.store'), $this->validPayload());

        $response
            ->assertRedirect(route('briefing'))
            ->assertSessionHas('status', 'briefing-sent');

        Mail::assertQueued(ContactBriefing::class, function (ContactBriefing $mail): bool {
            return array_key_exists('Origem de marketing', $mail->fields)
                && $mail->fields['Origem de marketing'] === null;
        });
    }

    public function test_hostile_marketing_origin_values_are_neutralised(): void
    {
        SiteSetting::instance();
        Mail::fake();

        $overlongCampaign = str_repeat('a', 300);

        $this->get('/briefing?'.http_build_query([
            'utm_source' => '<script>alert(1)</script>',
            'utm_campaign' => $overlongCampaign,
        ]))->assertOk();

        $this->post(route('briefing.store'), $this->validPayload())
            ->assertRedirect(route('briefing'))
            ->assertSessionHas('status', 'briefing-sent');

        $capturedOrigin = null;

        Mail::assertQueued(ContactBriefing::class, function (ContactBriefing $mail) use (&$capturedOrigin): bool {
            $capturedOrigin = $mail->fields['Origem de marketing'];

            return true;
        });

        self::assertIsString($capturedOrigin);
        self::assertStringNotContainsString('<script', $capturedOrigin);
        self::assertStringNotContainsString('<', $capturedOrigin);
        self::assertStringNotContainsString('>', $capturedOrigin);

        self::assertMatchesRegularExpression('/campanha: (a+)/', $capturedOrigin);
        preg_match('/campanha: (a+)/', $capturedOrigin, $matches);
        self::assertSame(100, mb_strlen($matches[1]));

        // Rendering into the HTML e-mail must not reintroduce markup either.
        Mail::assertQueued(ContactBriefing::class, function (ContactBriefing $mail): bool {
            $rendered = $mail->render();

            return ! str_contains($rendered, '<script>alert(1)</script>');
        });
    }

    public function test_technical_routes_do_not_consume_the_first_touch_slot(): void
    {
        $this->get('/sitemap.xml?utm_source=crawler&utm_medium=bot')->assertOk();
        $this->get('/robots.txt?utm_source=crawler')->assertOk();

        $this->assertNull(session(MarketingOrigin::SESSION_KEY));

        $this->get('/?utm_source=instagram&utm_medium=perfil')->assertOk();

        $this->assertSame('instagram', session(MarketingOrigin::SESSION_KEY)['utm_source'] ?? null);
    }
}