<?php

use App\Models\Forum;
use App\Models\User;
use Laravel\Sanctum\Sanctum;

it('can filter forums by parent exists', function (): void {
    $category = Forum::create([
        'name' => 'Category 1',
        'description' => null,
        'type' => 'category',
        'parent_id' => null,
        'position' => 1,
    ]);

    $forum = Forum::create([
        'name' => 'Forum A',
        'description' => null,
        'type' => 'forum',
        'parent_id' => $category->id,
        'position' => 1,
    ]);

    $response = $this->getJson('/api/forums?parent[exists]=false');
    $response->assertOk();
    $response->assertJsonCount(1);
    $response->assertJsonFragment(['id' => $category->id]);

    $response = $this->getJson('/api/forums?parent[exists]=true');
    $response->assertOk();
    $response->assertJsonCount(1);
    $response->assertJsonFragment(['id' => $forum->id]);
});

it('rejects forum without category parent', function (): void {
    Sanctum::actingAs(User::factory()->create());

    $response = $this->postJson('/api/forums', [
        'name' => 'Bad Forum',
        'type' => 'forum',
        'parent' => null,
    ]);

    $response->assertStatus(422);
    $response->assertJsonFragment(['message' => 'Forums must belong to a category.']);
});

it('rejects non-category parent', function (): void {
    Sanctum::actingAs(User::factory()->create());

    $category = Forum::create([
        'name' => 'Category',
        'description' => null,
        'type' => 'category',
        'parent_id' => null,
        'position' => 1,
    ]);

    $parent = Forum::create([
        'name' => 'Not Category',
        'description' => null,
        'type' => 'forum',
        'parent_id' => $category->id,
        'position' => 1,
    ]);

    $response = $this->postJson('/api/forums', [
        'name' => 'Child Forum',
        'type' => 'forum',
        'parent' => "/api/forums/{$parent->id}",
    ]);

    $response->assertStatus(422);
    $response->assertJsonFragment(['message' => 'Parent must be a category.']);
});

it('reorders positions within parent scope', function (): void {
    Sanctum::actingAs(User::factory()->create());

    $first = Forum::create([
        'name' => 'Cat A',
        'description' => null,
        'type' => 'category',
        'parent_id' => null,
        'position' => 1,
    ]);

    $second = Forum::create([
        'name' => 'Cat B',
        'description' => null,
        'type' => 'category',
        'parent_id' => null,
        'position' => 2,
    ]);

    $response = $this->postJson('/api/forums/reorder', [
        'parentId' => null,
        'orderedIds' => [$second->id, $first->id],
    ]);

    $response->assertOk();

    $this->assertDatabaseHas('forums', [
        'id' => $second->id,
        'position' => 1,
    ]);
    $this->assertDatabaseHas('forums', [
        'id' => $first->id,
        'position' => 2,
    ]);
});