<?php

declare(strict_types=1);

namespace Tests\Feature\Event;

use App\Models\Event;
use App\Models\Organisation;
use App\Models\User;
use Database\Seeders\RoleSeeder;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Laravel\Sanctum\Sanctum;
use Tests\TestCase;

class FestivalEventTest extends TestCase
{
    use RefreshDatabase;

    private User $orgAdmin;
    private Organisation $organisation;

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

        $this->organisation = Organisation::factory()->create();

        $this->orgAdmin = User::factory()->create();
        $this->organisation->users()->attach($this->orgAdmin, ['role' => 'org_admin']);
    }

    // --- INDEX: top-level only ---

    public function test_index_shows_only_top_level_events(): void
    {
        $festival = Event::factory()->festival()->create([
            'organisation_id' => $this->organisation->id,
        ]);
        Event::factory()->subEvent($festival)->create();
        Event::factory()->create(['organisation_id' => $this->organisation->id]);

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

        $response = $this->getJson("/api/v1/organisations/{$this->organisation->id}/events");

        $response->assertOk();
        $this->assertCount(2, $response->json('data'));

        $ids = collect($response->json('data'))->pluck('parent_event_id');
        $this->assertTrue($ids->every(fn ($v) => $v === null));
    }

    // --- INDEX: include_children ---

    public function test_index_with_include_children_shows_nested_children(): void
    {
        $festival = Event::factory()->festival()->create([
            'organisation_id' => $this->organisation->id,
        ]);
        Event::factory()->subEvent($festival)->count(2)->create();

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

        $response = $this->getJson("/api/v1/organisations/{$this->organisation->id}/events?include_children=true");

        $response->assertOk();
        $this->assertCount(1, $response->json('data'));
        $this->assertCount(2, $response->json('data.0.children'));
    }

    // --- INDEX: type filter ---

    public function test_index_type_filter_works(): void
    {
        Event::factory()->festival()->create([
            'organisation_id' => $this->organisation->id,
        ]);
        Event::factory()->create(['organisation_id' => $this->organisation->id]);

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

        $response = $this->getJson("/api/v1/organisations/{$this->organisation->id}/events?type=festival");

        $response->assertOk();
        $this->assertCount(1, $response->json('data'));
        $this->assertEquals('festival', $response->json('data.0.event_type'));
    }

    // --- STORE: sub-event ---

    public function test_store_with_parent_event_id_creates_sub_event(): void
    {
        $festival = Event::factory()->festival()->create([
            'organisation_id' => $this->organisation->id,
        ]);

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

        $response = $this->postJson("/api/v1/organisations/{$this->organisation->id}/events", [
            'name' => 'Dag 1',
            'slug' => 'dag-1',
            'start_date' => '2026-07-01',
            'end_date' => '2026-07-01',
            'parent_event_id' => $festival->id,
        ]);

        $response->assertCreated();
        $this->assertEquals($festival->id, $response->json('data.parent_event_id'));
        $this->assertTrue($response->json('data.is_sub_event'));
    }

    // --- STORE: sub-event cross-org → 422 ---

    public function test_store_sub_event_of_other_org_returns_422(): void
    {
        $otherOrg = Organisation::factory()->create();
        $otherEvent = Event::factory()->festival()->create([
            'organisation_id' => $otherOrg->id,
        ]);

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

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

        $response->assertStatus(422);
    }

    // --- CHILDREN endpoint ---

    public function test_children_endpoint_returns_sub_events(): void
    {
        $festival = Event::factory()->festival()->create([
            'organisation_id' => $this->organisation->id,
        ]);
        Event::factory()->subEvent($festival)->count(3)->create();

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

        $response = $this->getJson("/api/v1/organisations/{$this->organisation->id}/events/{$festival->id}/children");

        $response->assertOk();
        $this->assertCount(3, $response->json('data'));
    }

    public function test_children_of_flat_event_returns_empty_list(): void
    {
        $event = Event::factory()->create([
            'organisation_id' => $this->organisation->id,
        ]);

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

        $response = $this->getJson("/api/v1/organisations/{$this->organisation->id}/events/{$event->id}/children");

        $response->assertOk();
        $this->assertCount(0, $response->json('data'));
    }

    // --- SHOW: festival with children ---

    public function test_show_festival_contains_children(): void
    {
        $festival = Event::factory()->festival()->create([
            'organisation_id' => $this->organisation->id,
        ]);
        Event::factory()->subEvent($festival)->count(2)->create();

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

        $response = $this->getJson("/api/v1/organisations/{$this->organisation->id}/events/{$festival->id}");

        $response->assertOk();
        $this->assertCount(2, $response->json('data.children'));
        $this->assertEquals(2, $response->json('data.children_count'));
    }

    // --- SHOW: sub-event with parent ---

    public function test_show_sub_event_contains_parent(): void
    {
        $festival = Event::factory()->festival()->create([
            'organisation_id' => $this->organisation->id,
        ]);
        $subEvent = Event::factory()->subEvent($festival)->create();

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

        $response = $this->getJson("/api/v1/organisations/{$this->organisation->id}/events/{$subEvent->id}");

        $response->assertOk();
        $this->assertEquals($festival->id, $response->json('data.parent.id'));
    }

    // --- Helper methods ---

    public function test_is_festival_helper(): void
    {
        $festival = Event::factory()->festival()->create([
            'organisation_id' => $this->organisation->id,
        ]);

        $this->assertTrue($festival->isFestival());
        $this->assertFalse($festival->isSubEvent());
    }

    public function test_is_sub_event_helper(): void
    {
        $festival = Event::factory()->festival()->create([
            'organisation_id' => $this->organisation->id,
        ]);
        $subEvent = Event::factory()->subEvent($festival)->create();

        $this->assertTrue($subEvent->isSubEvent());
        $this->assertFalse($subEvent->isFestival());
    }

    public function test_is_flat_event_helper(): void
    {
        $event = Event::factory()->create([
            'organisation_id' => $this->organisation->id,
        ]);

        $this->assertTrue($event->isFlatEvent());
        $this->assertFalse($event->isFestival());
        $this->assertFalse($event->isSubEvent());
    }
}