<?php

declare(strict_types=1);

namespace Tests\Feature\Security;

use App\Models\Company;
use App\Models\CrowdType;
use App\Models\Event;
use App\Models\FestivalSection;
use App\Models\Location;
use App\Models\Organisation;
use App\Models\Person;
use App\Models\Shift;
use App\Models\TimeSlot;
use App\Models\User;
use Database\Seeders\RoleSeeder;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Laravel\Sanctum\Sanctum;
use Tests\TestCase;

final class InputValidationSecurityTest extends TestCase
{
    use RefreshDatabase;

    private Organisation $organisation;
    private Event $event;
    private User $admin;
    private CrowdType $crowdType;

    protected function setUp(): void
    {
        parent::setUp();
        $this->seed(RoleSeeder::class);

        $this->organisation = Organisation::factory()->create();
        $this->admin = User::factory()->create();
        $this->organisation->users()->attach($this->admin, ['role' => 'org_admin']);
        $this->crowdType = CrowdType::factory()->systemType('VOLUNTEER')->create([
            'organisation_id' => $this->organisation->id,
        ]);
        $this->event = Event::factory()->create([
            'organisation_id' => $this->organisation->id,
            'status' => 'registration_open',
        ]);
    }

    // --- XSS Payload Storage ---

    public function test_xss_in_person_name_is_stored_safely(): void
    {
        Sanctum::actingAs($this->admin);

        $xssPayload = '<script>alert("xss")</script>';

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons", [
            'crowd_type_id' => $this->crowdType->id,
            'first_name' => $xssPayload,
            'last_name' => 'Normal',
            'email' => 'xss-test@example.com',
        ]);

        $response->assertCreated();

        // Value is stored as-is (Laravel escapes on output via {{ }})
        $this->assertDatabaseHas('persons', [
            'first_name' => $xssPayload,
            'email' => 'xss-test@example.com',
        ]);

        // API resource should return the raw string (Vue's {{ }} escapes it)
        $response->assertJsonPath('data.first_name', $xssPayload);
    }

    public function test_xss_in_event_name_is_stored_safely(): void
    {
        Sanctum::actingAs($this->admin);

        $xssPayload = '"><img src=x onerror=alert(1)>';

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events", [
            'name' => $xssPayload,
            'slug' => 'xss-test-event',
            'start_date' => '2026-07-01',
            'end_date' => '2026-07-03',
        ]);

        $response->assertCreated();
        $response->assertJsonPath('data.name', $xssPayload);
    }

    public function test_xss_in_section_name_is_stored_safely(): void
    {
        Sanctum::actingAs($this->admin);

        $xssPayload = '<svg onload=alert(1)>';

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/sections", [
            'name' => $xssPayload,
        ]);

        $response->assertCreated();
        $response->assertJsonPath('data.name', $xssPayload);
    }

    // --- Oversized Input Rejection ---

    public function test_oversized_person_name_rejected(): void
    {
        Sanctum::actingAs($this->admin);

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons", [
            'crowd_type_id' => $this->crowdType->id,
            'first_name' => str_repeat('A', 256),
            'last_name' => 'Normal',
            'email' => 'oversize@example.com',
        ]);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('first_name');
    }

    public function test_oversized_event_name_rejected(): void
    {
        Sanctum::actingAs($this->admin);

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events", [
            'name' => str_repeat('A', 256),
            'slug' => 'oversize-test',
            'start_date' => '2026-07-01',
            'end_date' => '2026-07-03',
        ]);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('name');
    }

    public function test_oversized_remarks_rejected(): void
    {
        Sanctum::actingAs($this->admin);

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons", [
            'crowd_type_id' => $this->crowdType->id,
            'first_name' => 'Test',
            'last_name' => 'User',
            'email' => 'remarks@example.com',
            'remarks' => str_repeat('A', 5001),
        ]);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('remarks');
    }

    // --- Invalid Enum Values ---

    public function test_invalid_event_status_rejected(): void
    {
        Sanctum::actingAs($this->admin);

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events", [
            'name' => 'Enum Test',
            'slug' => 'enum-test',
            'start_date' => '2026-07-01',
            'end_date' => '2026-07-03',
            'status' => 'hacked_status',
        ]);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('status');
    }

    public function test_invalid_person_status_rejected(): void
    {
        Sanctum::actingAs($this->admin);

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons", [
            'crowd_type_id' => $this->crowdType->id,
            'first_name' => 'Test',
            'last_name' => 'User',
            'email' => 'enum@example.com',
            'status' => 'superadmin',
        ]);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('status');
    }

    public function test_invalid_event_type_rejected(): void
    {
        Sanctum::actingAs($this->admin);

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events", [
            'name' => 'Type Test',
            'slug' => 'type-test',
            'start_date' => '2026-07-01',
            'end_date' => '2026-07-03',
            'event_type' => 'malicious',
        ]);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('event_type');
    }

    // --- Cross-Org Foreign Key Validation ---

    public function test_person_with_cross_org_crowd_type_rejected(): void
    {
        $otherOrg = Organisation::factory()->create();
        $otherCrowdType = CrowdType::factory()->create(['organisation_id' => $otherOrg->id]);

        Sanctum::actingAs($this->admin);

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons", [
            'crowd_type_id' => $otherCrowdType->id,
            'first_name' => 'FK',
            'last_name' => 'Test',
            'email' => 'fk@example.com',
        ]);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('crowd_type_id');
    }

    public function test_person_with_cross_org_company_rejected(): void
    {
        $otherOrg = Organisation::factory()->create();
        $otherCompany = Company::factory()->create(['organisation_id' => $otherOrg->id]);

        Sanctum::actingAs($this->admin);

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons", [
            'crowd_type_id' => $this->crowdType->id,
            'first_name' => 'Company',
            'last_name' => 'Test',
            'email' => 'company-fk@example.com',
            'company_id' => $otherCompany->id,
        ]);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('company_id');
    }

    public function test_shift_with_cross_event_location_rejected(): void
    {
        $otherEvent = Event::factory()->create(['organisation_id' => $this->organisation->id]);
        $otherLocation = Location::factory()->create(['event_id' => $otherEvent->id]);
        $section = FestivalSection::factory()->create(['event_id' => $this->event->id]);
        $timeSlot = TimeSlot::factory()->create(['event_id' => $this->event->id]);

        Sanctum::actingAs($this->admin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/sections/{$section->id}/shifts",
            [
                'time_slot_id' => $timeSlot->id,
                'location_id' => $otherLocation->id,
                'slots_total' => 5,
                'slots_open_for_claiming' => 3,
            ]
        );

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('location_id');
    }

    public function test_event_with_cross_org_parent_rejected(): void
    {
        $otherOrg = Organisation::factory()->create();
        $otherEvent = Event::factory()->create(['organisation_id' => $otherOrg->id]);

        Sanctum::actingAs($this->admin);

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events", [
            'name' => 'Sub Event',
            'slug' => 'sub-event-test',
            'start_date' => '2026-07-01',
            'end_date' => '2026-07-03',
            'parent_event_id' => $otherEvent->id,
        ]);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('parent_event_id');
    }

    public function test_assign_shift_with_cross_event_person_rejected(): void
    {
        $otherEvent = Event::factory()->create([
            'organisation_id' => $this->organisation->id,
            'status' => 'registration_open',
        ]);
        $otherPerson = Person::factory()->approved()->create([
            'event_id' => $otherEvent->id,
            'crowd_type_id' => $this->crowdType->id,
        ]);

        $section = FestivalSection::factory()->create(['event_id' => $this->event->id]);
        $timeSlot = TimeSlot::factory()->create(['event_id' => $this->event->id]);
        $shift = Shift::factory()->create([
            'festival_section_id' => $section->id,
            'time_slot_id' => $timeSlot->id,
        ]);

        Sanctum::actingAs($this->admin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/sections/{$section->id}/shifts/{$shift->id}/assign",
            ['person_id' => $otherPerson->id]
        );

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('person_id');
    }

    // --- ULID Format Validation ---

    public function test_invalid_ulid_format_rejected(): void
    {
        Sanctum::actingAs($this->admin);

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons", [
            'crowd_type_id' => 'not-a-valid-ulid',
            'first_name' => 'Test',
            'last_name' => 'User',
            'email' => 'ulid@example.com',
        ]);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('crowd_type_id');
    }

    public function test_nonexistent_ulid_rejected(): void
    {
        Sanctum::actingAs($this->admin);

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons", [
            'crowd_type_id' => '01JZZZZZZZZZZZZZZZZZZZZZZ',
            'first_name' => 'Test',
            'last_name' => 'User',
            'email' => 'nonexistent@example.com',
        ]);

        $response->assertUnprocessable();
        $response->assertJsonValidationErrors('crowd_type_id');
    }

    // --- SQL Injection Resistance ---

    public function test_sql_injection_in_string_fields_harmless(): void
    {
        Sanctum::actingAs($this->admin);

        $sqlPayload = "'; DROP TABLE users; --";

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons", [
            'crowd_type_id' => $this->crowdType->id,
            'first_name' => $sqlPayload,
            'last_name' => 'Normal',
            'email' => 'sql@example.com',
        ]);

        $response->assertCreated();

        // Table still exists
        $this->assertDatabaseCount('users', 1); // the admin user
        $this->assertDatabaseHas('persons', ['first_name' => $sqlPayload]);
    }
}