<?php

namespace App\Http\Controllers;

use App\Models\MemeMedia;
use Artesaos\SEOTools\Facades\SEOMeta;
use Artesaos\SEOTools\Facades\OpenGraph;
use Artesaos\SEOTools\Facades\TwitterCard;
use Illuminate\Http\Request;
use Inertia\Inertia;
use Inertia\Response;

class FrontMemeController extends Controller
{
    public function index(Request $request): Response
    {
        return $this->getMemes($request->input('search'));
    }

    public function search(string $search): Response
    {
        // Convert + back to spaces for search
        $searchTerm = str_replace('+', ' ', $search);
        return $this->getMemes($searchTerm);
    }

    private function getMemes(?string $search = null): Response
    {
        $query = MemeMedia::query()
            ->where('is_enabled', true)
            ->orderBy('id', 'desc');

        // Search functionality
        if ($search) {
            $query->where(function ($q) use ($search) {
                $q->where('name', 'ilike', "%{$search}%")
                    ->orWhere('description', 'ilike', "%{$search}%")
                    ->orWhereJsonContains('keywords', $search)
                    ->orWhereJsonContains('action_keywords', $search)
                    ->orWhereJsonContains('emotion_keywords', $search)
                    ->orWhereJsonContains('misc_keywords', $search);
            });
        }

        $memes = $query->cursorPaginate(24);

        // Set up SEO meta tags
        $title = $search ? ucfirst($search) . " Memes in MEMEFA.ST" : 'Meme Library - Thousands of Video Meme Templates';

        if ($search) {
            // Get SEO descriptions from config
            $descriptions = config('platform.seo_descriptions.search_descriptions', []);

            // Use deterministic selection based on search term hash
            $searchHash = crc32($search);
            $descriptionIndex = abs($searchHash) % count($descriptions);
            $descriptionTemplate = $descriptions[$descriptionIndex];

            // Replace keyword placeholder
            $description = str_replace('__KEYWORD__', $search, $descriptionTemplate);
        } else {
            $description = 'Browse thousands of video meme templates ready for TikTok, Instagram Reels, Threads and YouTube Shorts. Create viral content in minutes with our meme editor.';
        }

        SEOMeta::setTitle($title, false);
        SEOMeta::setDescription($description);
        SEOMeta::setCanonical(request()->url());

        // Add pagination rel links
        if ($memes->previousPageUrl()) {
            SEOMeta::addMeta('link:prev', $memes->previousPageUrl(), 'rel');
        }
        if ($memes->nextPageUrl()) {
            SEOMeta::addMeta('link:next', $memes->nextPageUrl(), 'rel');
        }

        // OpenGraph tags
        OpenGraph::setTitle($title);
        OpenGraph::setDescription($description);
        OpenGraph::setUrl(request()->url());
        OpenGraph::addProperty('type', 'website');

        // Twitter Card
        TwitterCard::setTitle($title);
        TwitterCard::setDescription($description);
        TwitterCard::setType('summary_large_image');

        // Get available types for filter
        $types = MemeMedia::where('is_enabled', true)
            ->distinct()
            ->pluck('type')
            ->filter();

        // Get popular keywords for filter
        $popularKeywords = MemeMedia::where('is_enabled', true)
            ->get()
            ->pluck('keywords')
            ->flatten()
            ->countBy()
            ->sort()
            ->reverse()
            ->take(20)
            ->keys();

        return Inertia::render('memes/index', [
            'memes' => $memes,
            'types' => $types,
            'popularKeywords' => $popularKeywords,
            'filters' => [
                'search' => $search,
            ],
            'dynamicDescription' => $search ? $description : null,
        ]);
    }

    public function show(string $slug): Response
    {
        $meme = MemeMedia::where('slug', $slug)
            ->where('is_enabled', true)
            ->firstOrFail();

        // Get related memes based on similar keywords
        $relatedMemes = MemeMedia::where('is_enabled', true)
            ->where('id', '!=', $meme->id)
            ->where(function ($query) use ($meme) {
                if ($meme->keywords) {
                    foreach ($meme->keywords as $keyword) {
                        $query->orWhereJsonContains('keywords', $keyword)
                            ->orWhereJsonContains('action_keywords', $keyword)
                            ->orWhereJsonContains('emotion_keywords', $keyword)
                            ->orWhereJsonContains('misc_keywords', $keyword);
                    }
                }
            })
            ->limit(6)
            ->get();

        // If we have less than 6 related memes, fill up with random ones
        if ($relatedMemes->count() < 6) {
            $excludeIds = $relatedMemes->pluck('id')->push($meme->id)->toArray();
            $needed = 6 - $relatedMemes->count();

            $randomMemes = MemeMedia::where('is_enabled', true)
                ->whereNotIn('id', $excludeIds)
                ->inRandomOrder()
                ->limit($needed)
                ->get();

            $relatedMemes = $relatedMemes->merge($randomMemes);
        }

        // Set up SEO meta tags for individual meme page
        $title = "{$meme->name} - Make Video Memes with MEMEFA.ST";
        $description = $meme->description
            ? "This meme is about: {$meme->description}."
            : "Create {$meme->name} video memes with our online editor. Perfect for TikTok, Instagram Reels, and YouTube Shorts.";

        SEOMeta::setTitle($title, false);
        SEOMeta::setDescription($description);
        SEOMeta::setCanonical(request()->url());
        SEOMeta::addKeyword(collect([$meme->keywords, $meme->action_keywords, $meme->emotion_keywords, $meme->misc_keywords])->flatten()->filter()->implode(', '));

        // OpenGraph tags
        OpenGraph::setTitle($title);
        OpenGraph::setDescription($description);
        OpenGraph::setUrl(request()->url());
        //OpenGraph::addProperty('type', 'video.other');
        //OpenGraph::addImage($meme->webp_url);

        // Twitter Card
        TwitterCard::setTitle($title);
        TwitterCard::setDescription($description);
        //TwitterCard::setType('summary_large_image');
        //TwitterCard::setImage($meme->webp_url);

        return Inertia::render('memes/show', [
            'meme' => $meme,
            'relatedMemes' => $relatedMemes,
        ]);
    }
}