<?php

declare(strict_types=1);

namespace App\Http\Controllers\Academy;

use App\Http\Controllers\Controller;
use App\Models\AcademyPromptPack;
use App\Services\Academy\AcademyAccessService;
use App\Services\Academy\AcademyInteractionService;
use App\Support\AcademyAnalytics\AcademyAnalyticsContentType;
use App\Support\Seo\SeoFactory;
use App\Support\Seo\SeoDataBuilder;
use Illuminate\Http\Request;
use Illuminate\Support\Str;
use Inertia\Inertia;
use Inertia\Response;

final class AcademyPromptPackController extends Controller
{
    public function __construct(
        private readonly AcademyAccessService $access,
        private readonly AcademyInteractionService $interactions,
    )
    {
    }

    public function index(Request $request): Response
    {
        abort_unless((bool) config('academy.enabled', true), 404);

        $packs = AcademyPromptPack::query()
            ->active()
            ->published()
            ->latest('published_at')
            ->paginate(12)
            ->withQueryString();

        $packs->getCollection()->transform(fn (AcademyPromptPack $pack): array => $this->access->packPayload($pack, $request->user()));

        $seo = app(SeoFactory::class)
            ->collectionListing(
                'Academy Prompt Packs — Skinbase',
                'Preview bundled prompt packs for Skinbase wallpapers, worlds, mascots, and editorial workflows.',
                route('academy.packs.index'),
            )
            ->toArray();
        $seo = SeoDataBuilder::fromArray($seo)
            ->breadcrumbs([
                ['name' => 'Academy', 'url' => route('academy.index')],
                ['name' => 'Prompt Packs', 'url' => route('academy.packs.index')],
            ])
            ->build()
            ->toArray();

        return Inertia::render('Academy/List', [
            'pageType' => 'packs',
            'title' => 'Prompt packs',
            'description' => 'Curated prompt bundles with free previews and premium pack access tiers.',
            'seo' => $seo,
            'items' => $packs,
            'filters' => [],
            'categories' => [],
            'pricingUrl' => route('academy.pricing'),
            'analytics' => [
                'enabled' => true,
                'contentType' => AcademyAnalyticsContentType::PROMPT_PACK_LIBRARY,
                'contentId' => null,
                'eventUrl' => route('academy.analytics.events.store'),
                'pageName' => 'academy_packs_index',
                'isPremium' => false,
                'isGuest' => $request->user() === null,
                'isSubscriber' => $request->user()?->hasAcademyCreatorAccess() || $request->user()?->hasAcademyProAccess(),
            ],
        ])->rootView('academy');
    }

    public function show(Request $request, string $slug): Response
    {
        abort_unless((bool) config('academy.enabled', true), 404);

        $pack = AcademyPromptPack::query()
            ->with(['prompts.category'])
            ->active()
            ->published()
            ->where('slug', $slug)
            ->firstOrFail();

        $payload = $this->access->packPayload($pack, $request->user(), true);
        $canonical = route('academy.packs.show', ['slug' => $pack->slug]);
        $description = Str::limit((string) ($pack->excerpt ?? $pack->description ?? ''), 160, '...');
        $seo = SeoDataBuilder::fromArray(
            app(SeoFactory::class)->collectionPage(
                $pack->title . ' — Skinbase Academy',
                $description,
                $canonical,
                $pack->cover_image,
            )->toArray()
        )
            ->breadcrumbs([
                ['name' => 'Academy', 'url' => route('academy.index')],
                ['name' => 'Prompt Packs', 'url' => route('academy.packs.index')],
                ['name' => (string) $pack->title, 'url' => $canonical],
            ])
            ->addJsonLd($this->packStructuredData($payload, $canonical, $description))
            ->build()
            ->toArray();

        $interaction = $this->interactions->getInteractionState($request->user(), AcademyAnalyticsContentType::PROMPT_PACK, (int) $pack->id);

        return Inertia::render('Academy/Show', [
            'pageType' => 'pack',
            'item' => $payload,
            'seo' => $seo,
            'pricingUrl' => route('academy.pricing'),
            'interaction' => $interaction,
            'interactionRoutes' => [
                'like' => route('academy.interactions.like'),
                'save' => route('academy.interactions.save'),
            ],
            'loginUrl' => route('login'),
            'analytics' => [
                'enabled' => true,
                'contentType' => AcademyAnalyticsContentType::PROMPT_PACK,
                'contentId' => (int) $pack->id,
                'eventUrl' => route('academy.analytics.events.store'),
                'pageName' => 'academy_pack_show',
                'isPremium' => (string) ($pack->access_level ?? 'free') !== 'free',
                'isGuest' => $request->user() === null,
                'isSubscriber' => $request->user()?->hasAcademyCreatorAccess() || $request->user()?->hasAcademyProAccess(),
                'isLocked' => (bool) ($payload['locked'] ?? false),
            ],
        ])->rootView('academy');
    }

    /**
     * @param  array<string, mixed>  $payload
     * @return array<string, mixed>
     */
    private function packStructuredData(array $payload, string $canonical, string $description): array
    {
        $image = trim((string) ($payload['cover_image'] ?? ''));
        $imageUrl = $image !== '' && preg_match('/^https?:\/\//i', $image) === 1 ? $image : ($image !== '' ? url($image) : null);
        $keywords = array_values((array) ($payload['tags'] ?? []));
        $isFree = (string) ($payload['access_level'] ?? 'free') === 'free';
        $promptEntries = collect((array) ($payload['prompts'] ?? []))
            ->map(function (array $prompt): ?array {
                $title = trim((string) ($prompt['title'] ?? ''));
                $slug = trim((string) ($prompt['slug'] ?? ''));

                if ($title === '' || $slug === '') {
                    return null;
                }

                return [
                    '@type' => 'ListItem',
                    'position' => null,
                    'item' => [
                        '@type' => 'CreativeWork',
                        'name' => $title,
                        'url' => route('academy.prompts.show', ['slug' => $slug]),
                    ],
                ];
            })
            ->filter()
            ->values()
            ->map(function (array $item, int $index): array {
                $item['position'] = $index + 1;

                return $item;
            })
            ->all();

        return array_filter([
            '@context' => 'https://schema.org',
            '@type' => ['CreativeWork', 'LearningResource'],
            'name' => (string) ($payload['title'] ?? 'Skinbase Academy prompt pack'),
            'description' => $description,
            'url' => $canonical,
            'image' => $imageUrl,
            'keywords' => $keywords !== [] ? $keywords : null,
            'isAccessibleForFree' => $isFree,
            'hasPart' => $promptEntries !== [] ? [
                '@type' => 'ItemList',
                'itemListElement' => $promptEntries,
            ] : null,
        ], fn (mixed $value): bool => $value !== null && $value !== '' && $value !== []);
    }
}