<?php

namespace App\Http\Controllers;

use App\Models\ContentViewLog;
use App\Models\Product;
use Illuminate\Http\Request;

class ProductController extends Controller
{
    public function show(string $slug, Request $request)
    {
        $product = Product::with('tags', 'category')->where('slug', $slug)->firstOrFail();

        $this->recordView($product, $request);

        $comments = $product->comments()
            ->where('status', 'approved')
            ->orderByDesc('created_at')
            ->get();

        $relatedProducts = Product::published()
            ->where('id', '!=', $product->id)
            ->whereHas('tags', function ($query) use ($product) {
                $query->whereIn('tags.id', $product->tags->pluck('id'));
            })
            ->orderByDesc('hot_score')
            ->limit(8)
            ->get();

        return view('product.show', [
            'product' => $product,
            'comments' => $comments,
            'relatedProducts' => $relatedProducts,
        ]);
    }

    private function recordView(Product $product, Request $request): void
    {
        $ip = $request->ip() ?? '0.0.0.0';
        $userAgent = $request->userAgent() ?? 'unknown';
        $userAgentHash = sha1($userAgent);

        $log = ContentViewLog::firstOrCreate([
            'content_type' => 'product',
            'content_id' => $product->id,
            'ip' => $ip,
            'user_agent_hash' => $userAgentHash,
            'viewed_on' => now()->toDateString(),
        ]);

        if ($log->wasRecentlyCreated) {
            $product->increment('view_count');
            $product->refreshHotScore();
        }
    }
}