<?php

declare(strict_types=1);

namespace Tests\Feature\Organisation;

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

class OrganisationDashboardStatsTest extends TestCase
{
    use RefreshDatabase;

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

    public function test_unauthenticated_request_returns_401(): void
    {
        $org = Organisation::factory()->create();

        $response = $this->getJson("/api/v1/organisations/{$org->id}/dashboard-stats");

        $response->assertUnauthorized();
    }

    public function test_member_from_other_org_returns_403(): void
    {
        $user = User::factory()->create();
        $otherOrg = Organisation::factory()->create();

        Sanctum::actingAs($user);

        $response = $this->getJson("/api/v1/organisations/{$otherOrg->id}/dashboard-stats");

        $response->assertForbidden();
    }

    public function test_authenticated_member_can_fetch_dashboard_stats(): void
    {
        $user = User::factory()->create();
        $org = Organisation::factory()->create();
        $org->users()->attach($user, ['role' => 'org_member']);

        Sanctum::actingAs($user);

        $response = $this->getJson("/api/v1/organisations/{$org->id}/dashboard-stats");

        $response->assertOk()
            ->assertJsonStructure([
                'data' => [
                    'members_count',
                    'events_count',
                    'events_by_status',
                    'active_events_count',
                    'persons_count',
                    'top_members',
                    'recent_activity',
                ],
            ]);
    }

    public function test_stats_return_correct_counts(): void
    {
        $user = User::factory()->create();
        $org = Organisation::factory()->create();
        $org->users()->attach($user, ['role' => 'org_admin']);

        // 2 extra members -> 3 total
        $org->users()->attach(User::factory()->create(), ['role' => 'org_member']);
        $org->users()->attach(User::factory()->create(), ['role' => 'org_member']);

        // Events: 2 draft, 1 published, 1 buildup, 1 closed = 5 total, 2 active (published + buildup)
        Event::factory()->count(2)->create(['organisation_id' => $org->id, 'status' => 'draft']);
        $published = Event::factory()->create(['organisation_id' => $org->id, 'status' => 'published']);
        Event::factory()->create(['organisation_id' => $org->id, 'status' => 'buildup']);
        Event::factory()->create(['organisation_id' => $org->id, 'status' => 'closed']);

        // 3 persons in the published event
        Person::factory()->count(3)->create(['event_id' => $published->id]);

        // Noise: another org with its own data — should be filtered out
        $otherOrg = Organisation::factory()->create();
        $otherOrg->users()->attach(User::factory()->create(), ['role' => 'org_admin']);
        $otherEvent = Event::factory()->create(['organisation_id' => $otherOrg->id, 'status' => 'published']);
        Person::factory()->create(['event_id' => $otherEvent->id]);

        Sanctum::actingAs($user);

        $response = $this->getJson("/api/v1/organisations/{$org->id}/dashboard-stats");

        $response->assertOk();
        $data = $response->json('data');

        $this->assertSame(3, $data['members_count']);
        $this->assertSame(5, $data['events_count']);
        $this->assertSame(2, $data['active_events_count']);
        $this->assertSame(3, $data['persons_count']);
        $this->assertSame(2, $data['events_by_status']['draft']);
        $this->assertSame(1, $data['events_by_status']['published']);
        $this->assertSame(1, $data['events_by_status']['buildup']);
        $this->assertSame(1, $data['events_by_status']['closed']);
        $this->assertSame(0, $data['events_by_status']['registration_open']);
    }

    public function test_top_members_limited_to_five_and_ordered_by_joined_at(): void
    {
        $user = User::factory()->create();
        $org = Organisation::factory()->create();

        // Attach user first with the earliest join timestamp
        $org->users()->attach($user, ['role' => 'org_admin']);

        // Attach 6 more members (total 7)
        for ($i = 0; $i < 6; $i++) {
            $org->users()->attach(User::factory()->create(), ['role' => 'org_member']);
        }

        Sanctum::actingAs($user);

        $response = $this->getJson("/api/v1/organisations/{$org->id}/dashboard-stats");

        $response->assertOk();
        $members = $response->json('data.top_members');

        $this->assertCount(5, $members);
        $this->assertSame($user->id, $members[0]['id']);
        $this->assertSame('org_admin', $members[0]['role']);
    }

    public function test_recent_activity_limited_to_five_entries(): void
    {
        $user = User::factory()->create();
        $org = Organisation::factory()->create();
        $org->users()->attach($user, ['role' => 'org_admin']);

        Activity::query()->delete();

        // Trigger 7 activity log entries on the organisation
        for ($i = 0; $i < 7; $i++) {
            $org->update(['name' => "Changed {$i}"]);
        }

        Sanctum::actingAs($user);

        $response = $this->getJson("/api/v1/organisations/{$org->id}/dashboard-stats");

        $response->assertOk();
        $this->assertCount(5, $response->json('data.recent_activity'));
    }
}