<?php

declare(strict_types=1);

namespace App\Http\Controllers\Studio;

use App\Http\Controllers\Controller;
use App\Models\Category;
use App\Models\ContentType;
use App\Services\Studio\StudioMetricsService;
use Illuminate\Http\Request;
use Inertia\Inertia;
use Inertia\Response;

/**
 * Serves Studio Inertia pages for authenticated creators.
 */
final class StudioController extends Controller
{
    public function __construct(
        private readonly StudioMetricsService $metrics,
    ) {}

    /**
     * Studio Overview Dashboard (/studio)
     */
    public function index(Request $request): Response
    {
        $userId = $request->user()->id;

        return Inertia::render('Studio/StudioDashboard', [
            'kpis'           => $this->metrics->getDashboardKpis($userId),
            'topPerformers'  => $this->metrics->getTopPerformers($userId, 6),
            'recentComments' => $this->metrics->getRecentComments($userId, 5),
        ]);
    }

    /**
     * Artwork Manager (/studio/artworks)
     */
    public function artworks(Request $request): Response
    {
        return Inertia::render('Studio/StudioArtworks', [
            'categories' => $this->getCategories(),
        ]);
    }

    /**
     * Drafts (/studio/artworks/drafts)
     */
    public function drafts(Request $request): Response
    {
        return Inertia::render('Studio/StudioDrafts', [
            'categories' => $this->getCategories(),
        ]);
    }

    /**
     * Archived (/studio/artworks/archived)
     */
    public function archived(Request $request): Response
    {
        return Inertia::render('Studio/StudioArchived', [
            'categories' => $this->getCategories(),
        ]);
    }

    /**
     * Edit artwork (/studio/artworks/:id/edit)
     */
    public function edit(Request $request, int $id): Response
    {
        $artwork = $request->user()->artworks()
            ->with(['stats', 'categories.contentType', 'tags', 'artworkAiAssist'])
            ->findOrFail($id);

        $primaryCategory = $artwork->categories->first();

        return Inertia::render('Studio/StudioArtworkEdit', [
            'artwork'    => [
                'id'              => $artwork->id,
                'title'           => $artwork->title,
                'slug'            => $artwork->slug,
                'description'     => $artwork->description,
                'is_public'       => (bool) $artwork->is_public,
                'visibility'      => $artwork->visibility ?: ((bool) $artwork->is_public ? 'public' : 'private'),
                'is_approved'     => (bool) $artwork->is_approved,
                'publish_mode'    => $artwork->artwork_status === 'scheduled' ? 'schedule' : 'now',
                'publish_at'      => $artwork->publish_at?->toIso8601String(),
                'artwork_status'  => $artwork->artwork_status,
                'artwork_timezone' => $artwork->artwork_timezone,
                'thumb_url'       => $artwork->thumbUrl('md'),
                'thumb_url_lg'    => $artwork->thumbUrl('lg'),
                'file_name'       => $artwork->file_name,
                'file_size'       => $artwork->file_size,
                'width'           => $artwork->width,
                'height'          => $artwork->height,
                'mime_type'       => $artwork->mime_type,
                'content_type_id' => $primaryCategory?->contentType?->id,
                'category_id'     => $primaryCategory?->id,
                'parent_category_id' => $primaryCategory?->parent_id ? $primaryCategory->parent_id : $primaryCategory?->id,
                'sub_category_id'    => $primaryCategory?->parent_id ? $primaryCategory->id : null,
                'categories'      => $artwork->categories->map(fn ($c) => ['id' => $c->id, 'name' => $c->name, 'slug' => $c->slug])->values()->all(),
                'tags'            => $artwork->tags->map(fn ($t) => ['id' => $t->id, 'name' => $t->name, 'slug' => $t->slug])->values()->all(),
                'ai_status'       => $artwork->ai_status,
                'title_source'    => $artwork->title_source ?: 'manual',
                'description_source' => $artwork->description_source ?: 'manual',
                'tags_source'     => $artwork->tags_source ?: 'manual',
                'category_source' => $artwork->category_source ?: 'manual',
                // Versioning
                'version_count'       => (int) ($artwork->version_count ?? 1),
                'requires_reapproval' => (bool) $artwork->requires_reapproval,
            ],
            'contentTypes' => $this->getCategories(),
        ]);
    }

    /**
     * Analytics v1 (/studio/artworks/:id/analytics)
     */
    public function analytics(Request $request, int $id): Response
    {
        $artwork = $request->user()->artworks()
            ->with(['stats', 'awardStat'])
            ->findOrFail($id);

        $stats = $artwork->stats;

        return Inertia::render('Studio/StudioArtworkAnalytics', [
            'artwork' => [
                'id'            => $artwork->id,
                'title'         => $artwork->title,
                'slug'          => $artwork->slug,
                'thumb_url'     => $artwork->thumbUrl('md'),
            ],
            'analytics' => [
                'views'           => (int) ($stats?->views ?? 0),
                'favourites'      => (int) ($stats?->favorites ?? 0),
                'shares'          => (int) ($stats?->shares_count ?? 0),
                'comments'        => (int) ($stats?->comments_count ?? 0),
                'downloads'       => (int) ($stats?->downloads ?? 0),
                'ranking_score'   => (float) ($stats?->ranking_score ?? 0),
                'heat_score'      => (float) ($stats?->heat_score ?? 0),
                'engagement_velocity' => (float) ($stats?->engagement_velocity ?? 0),
            ],
        ]);
    }

    /**
     * Studio-wide Analytics (/studio/analytics)
     */
    public function analyticsOverview(Request $request): Response
    {
        $userId = $request->user()->id;
        $data = $this->metrics->getAnalyticsOverview($userId);

        return Inertia::render('Studio/StudioAnalytics', [
            'totals'           => $data['totals'],
            'topArtworks'      => $data['top_artworks'],
            'contentBreakdown' => $data['content_breakdown'],
            'recentComments'   => $this->metrics->getRecentComments($userId, 8),
        ]);
    }

    private function getCategories(): array
    {
        return ContentType::with(['rootCategories.children'])->get()->map(function ($ct) {
            return [
                'id'   => $ct->id,
                'name' => $ct->name,
                'slug' => $ct->slug,
                'categories' => $ct->rootCategories->map(function ($c) {
                    return [
                        'id'       => $c->id,
                        'name'     => $c->name,
                        'slug'     => $c->slug,
                        'children' => $c->children->map(fn ($ch) => [
                            'id'   => $ch->id,
                            'name' => $ch->name,
                            'slug' => $ch->slug,
                        ])->values()->all(),
                    ];
                })->values()->all(),
            ];
        })->values()->all();
    }
}