<?php

declare(strict_types=1);

use App\Models\Artwork;
use App\Models\Category;
use App\Models\ContentType;
use App\Models\User;
use App\Services\Artworks\ArtworkCategoryService;
use App\Services\ArtworkService;
use App\Services\Studio\StudioAiAssistService;
use App\Services\Studio\StudioAiCategoryMapper;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use Illuminate\Validation\ValidationException;
use Inertia\Testing\AssertableInertia as Assert;

use function Pest\Laravel\artisan;

uses(RefreshDatabase::class);

function snCatContentType(string $name = 'Wallpapers'): ContentType
{
    return ContentType::query()->create([
        'name' => $name,
        'slug' => strtolower($name).'-'.uniqid(),
        'description' => $name,
    ]);
}

function snCatCategory(ContentType $type, string $name, ?Category $parent = null): Category
{
    return Category::query()->create([
        'content_type_id' => $type->id,
        'parent_id' => $parent?->id,
        'name' => $name,
        'slug' => strtolower($name).'-'.uniqid(),
        'description' => $name,
        'is_active' => true,
        'sort_order' => 0,
    ]);
}

it('syncs a deterministic primary category into the pivot and rejects invalid combinations', function (): void {
    $user = User::factory()->create();
    $wallpapers = snCatContentType('Wallpapers');
    $photography = snCatContentType('Photography');
    $cityscape = snCatCategory($wallpapers, 'Cityscape');
    $architecture = snCatCategory($wallpapers, 'Architecture');
    $travel = snCatCategory($wallpapers, 'Travel');
    $night = snCatCategory($wallpapers, 'Night');
    $weather = snCatCategory($wallpapers, 'Weather');
    $interior = snCatCategory($wallpapers, 'Interior');
    $abstract = snCatCategory($wallpapers, 'Abstract');
    $landscape = snCatCategory($photography, 'Landscape');
    $artwork = Artwork::factory()->for($user)->create();

    $service = app(ArtworkCategoryService::class);
    $service->sync($artwork, $cityscape->id, [$architecture->id, $travel->id, $cityscape->id], 'user', false);

    $artwork->refresh()->load('categories');

    expect($artwork->primary_category_id)->toBe($cityscape->id)
        ->and($artwork->categories->pluck('id')->sort()->values()->all())
        ->toEqualCanonicalizing([$cityscape->id, $architecture->id, $travel->id])
        ->and($artwork->resolvedPrimaryCategory()?->id)->toBe($cityscape->id);

    $service->sync($artwork, $cityscape->id, [$architecture->id, $travel->id, $night->id, $weather->id, $interior->id], 'user', false);
    expect($artwork->fresh()->categories()->count())->toBe(6);

    expect(fn () => $service->sync($artwork, $cityscape->id, [$architecture->id, $travel->id, $night->id, $weather->id, $interior->id, $abstract->id], 'user', false))
        ->toThrow(ValidationException::class);

    expect(fn () => $service->sync($artwork, $cityscape->id, [$landscape->id], 'user', false))
        ->toThrow(ValidationException::class);

    $artwork->refresh();
    expect($artwork->primary_category_id)->toBe($cityscape->id)
        ->and($artwork->categories()->count())->toBe(6);
});

it('rolls back invalid category writes and keeps the previous membership', function (): void {
    $user = User::factory()->create();
    $type = snCatContentType();
    $primary = snCatCategory($type, 'Primary');
    $secondary = snCatCategory($type, 'Secondary');
    $otherType = snCatContentType('Photography');
    $invalid = snCatCategory($otherType, 'Invalid');
    $artwork = Artwork::factory()->for($user)->create();
    $service = app(ArtworkCategoryService::class);

    $service->sync($artwork, $primary->id, [$secondary->id], 'user', false);

    try {
        $service->sync($artwork, $primary->id, [$invalid->id], 'user', false);
        expect(false)->toBeTrue();
    } catch (ValidationException) {
        // expected
    }

    $artwork->refresh()->load('categories');
    expect($artwork->primary_category_id)->toBe($primary->id)
        ->and($artwork->categories->pluck('id')->all())->toEqualCanonicalizing([$primary->id, $secondary->id]);
});

it('promotes a secondary category to primary without dropping the previous primary', function (): void {
    $user = User::factory()->create();
    $type = snCatContentType();
    $cityscape = snCatCategory($type, 'Cityscape');
    $architecture = snCatCategory($type, 'Architecture');
    $artwork = Artwork::factory()->for($user)->create();
    $service = app(ArtworkCategoryService::class);

    $service->sync($artwork, $cityscape->id, [$architecture->id], 'user', false);
    $service->sync($artwork, $architecture->id, [$cityscape->id], 'user', false);

    $artwork->refresh();
    expect($artwork->primary_category_id)->toBe($architecture->id)
        ->and($artwork->categories()->pluck('categories.id')->all())->toEqualCanonicalizing([$architecture->id, $cityscape->id]);
});

it('exposes primary category compatibly on the artwork API and category pages', function (): void {
    $user = User::factory()->create();
    $type = snCatContentType('Wallpapers');
    $cityscape = snCatCategory($type, 'Cityscape');
    $architecture = snCatCategory($type, 'Architecture');
    $artwork = Artwork::factory()->for($user)->create([
        'is_public' => true,
        'is_approved' => true,
        'published_at' => now()->subMinute(),
        'slug' => 'morning-coffee',
        'title' => 'Morning Coffee',
    ]);
    app(ArtworkCategoryService::class)->sync($artwork, $cityscape->id, [$architecture->id], 'user', false);

    $this->get(route('art.show', ['id' => $artwork->id, 'slug' => $artwork->slug]))
        ->assertOk()
        ->assertInertia(fn (Assert $page) => $page
            ->component('ArtworkPage')
            ->where('artwork.canonical_url', route('art.show', ['id' => $artwork->id, 'slug' => $artwork->slug]))
            ->where('artwork.category.id', $cityscape->id)
            ->where('artwork.primary_category.id', $cityscape->id)
            ->where('artwork.categories.0.is_primary', true)
            ->where('seo.json_ld', function ($schemas): bool {
                $json = json_encode($schemas, JSON_UNESCAPED_SLASHES);

                return str_contains($json, '"@type":"BreadcrumbList"')
                    && str_contains($json, '"name":"Cityscape"')
                    && ! str_contains($json, '"name":"Architecture"');
            }));

    $cityPage = app(ArtworkService::class)->getArtworksByCategoryPath([$type->slug, $cityscape->slug], 24);
    $archPage = app(ArtworkService::class)->getArtworksByCategoryPath([$type->slug, $architecture->slug], 24);

    expect($cityPage->pluck('id')->all())->toContain($artwork->id)
        ->and($archPage->pluck('id')->all())->toContain($artwork->id)
        ->and($cityPage->pluck('id')->filter(fn ($id) => (int) $id === (int) $artwork->id)->count())->toBe(1);
});

it('finalizes upload staging through the central category service', function (): void {
    $user = User::factory()->create();
    $type = snCatContentType();
    $primary = snCatCategory($type, 'Cityscape');
    $secondary = snCatCategory($type, 'Architecture');

    $this->actingAs($user)
        ->postJson('/api/artworks', [
            'title' => 'Staged artwork',
            'category' => $primary->id,
            'secondary_category_ids' => [$secondary->id],
            'description' => 'A valid description for the draft.',
        ])
        ->assertCreated();

    $artwork = Artwork::query()->latest('id')->first();
    expect($artwork?->primary_category_id)->toBe($primary->id)
        ->and($artwork?->categories()->pluck('categories.id')->all())->toEqualCanonicalizing([$primary->id, $secondary->id]);
});

it('updates studio artwork categories with an explicit primary and secondary contract', function (): void {
    $user = User::factory()->create();
    $type = snCatContentType();
    $primary = snCatCategory($type, 'Cityscape');
    $secondary = snCatCategory($type, 'Architecture');
    $promoted = snCatCategory($type, 'Travel');
    $artwork = Artwork::factory()->for($user)->create([
        'user_id' => $user->id,
        'is_public' => false,
        'visibility' => Artwork::VISIBILITY_PRIVATE,
    ]);
    app(ArtworkCategoryService::class)->sync($artwork, $primary->id, [$secondary->id], 'user', false);

    $this->actingAs($user)
        ->putJson('/api/studio/artworks/'.$artwork->id, [
            'primary_category_id' => $promoted->id,
            'secondary_category_ids' => [$primary->id],
        ])
        ->assertOk()
        ->assertJsonPath('artwork.primary_category_id', $promoted->id)
        ->assertJsonPath('artwork.category_id', $promoted->id);

    $artwork->refresh();
    expect($artwork->primary_category_id)->toBe($promoted->id)
        ->and($artwork->categories()->pluck('categories.id')->all())->toEqualCanonicalizing([$promoted->id, $primary->id]);
});

it('does not let nova overwrite a confirmed primary unless the editor applies a category', function (): void {
    $user = User::factory()->create();
    $type = snCatContentType();
    $confirmed = snCatCategory($type, 'Cityscape');
    $suggested = snCatCategory($type, 'Architecture');
    $artwork = Artwork::factory()->for($user)->create();
    app(ArtworkCategoryService::class)->sync($artwork, $confirmed->id, [], 'manual', false);

    $mapper = app(StudioAiCategoryMapper::class);
    $payload = $mapper->map(['architecture', 'building'], $confirmed);

    expect(count($payload['category']['secondary_categories'] ?? []))->toBeLessThanOrEqual((int) config('categories.max_secondary_categories', 5));
    if (! empty($payload['category']['content_type_id'])) {
        expect($payload['category']['content_type_id'])->toBe($type->id);
    }

    app(StudioAiAssistService::class)->applySuggestions($artwork->fresh(['tags', 'categories.contentType']), [
        'title' => 'Keep my category',
    ]);

    expect($artwork->fresh()->primary_category_id)->toBe($confirmed->id);

    app(StudioAiAssistService::class)->applySuggestions($artwork->fresh(['tags', 'categories.contentType']), [
        'category_id' => $suggested->id,
        'secondary_category_ids' => [$confirmed->id],
    ]);

    expect($artwork->fresh()->primary_category_id)->toBe($suggested->id);
});

it('backfills only unique memberships and stays idempotent', function (): void {
    $user = User::factory()->create();
    $type = snCatContentType();
    $one = snCatCategory($type, 'One');
    $two = snCatCategory($type, 'Two');
    $single = Artwork::factory()->for($user)->create();
    $conflict = Artwork::factory()->for($user)->create();
    $empty = Artwork::factory()->for($user)->create();

    $single->categories()->sync([$one->id]);
    $conflict->categories()->sync([$one->id, $two->id]);

    artisan('artworks:backfill-primary-category', ['--report' => true])
        ->assertSuccessful()
        ->expectsOutputToContain('Dry run only');

    expect($single->fresh()->primary_category_id)->toBeNull()
        ->and($conflict->fresh()->primary_category_id)->toBeNull();

    artisan('artworks:backfill-primary-category', ['--apply' => true, '--report' => true])
        ->assertSuccessful();

    expect($single->fresh()->primary_category_id)->toBe($one->id)
        ->and($conflict->fresh()->primary_category_id)->toBeNull()
        ->and($empty->fresh()->primary_category_id)->toBeNull();

    $single->forceFill(['primary_category_id' => $two->id])->save();
    artisan('artworks:backfill-primary-category', ['--apply' => true])
        ->assertSuccessful();
    expect($single->fresh()->primary_category_id)->toBe($two->id);
});

it('clears the primary category reference when a category is deleted and cascades artwork deletion', function (): void {
    $user = User::factory()->create();
    $type = snCatContentType();
    $category = snCatCategory($type, 'Temporary');
    $artwork = Artwork::factory()->for($user)->create();
    app(ArtworkCategoryService::class)->sync($artwork, $category->id, [], 'user', false);

    $category->forceDelete();
    expect($artwork->fresh()->primary_category_id)->toBeNull()
        ->and(DB::table('artwork_category')->where('artwork_id', $artwork->id)->count())->toBe(0);

    $other = snCatCategory($type, 'Kept');
    app(ArtworkCategoryService::class)->sync($artwork->fresh(), $other->id, [], 'user', false);
    $artwork->forceDelete();
    expect(DB::table('artwork_category')->where('artwork_id', $artwork->id)->count())->toBe(0);
});