<?php

namespace App\Http\Controllers;

use App\Models\Product;
use App\Models\User;
use App\Models\Category;
use App\Models\Comment;
use App\Models\Upvote;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class AdminController extends Controller
{
    /**
     * Display the admin dashboard with statistics.
     */
    public function dashboard()
    {
        // General Stats
        $stats = [
            'total_users' => User::count(),
            'total_products' => Product::count(),
            'approved_products' => Product::approved()->count(),
            'pending_products' => Product::pending()->count(),
            'rejected_products' => Product::rejected()->count(),
            'total_categories' => Category::count(),
            'total_comments' => Comment::count(),
            'total_upvotes' => Upvote::count(),
        ];

        // User Growth (last 7 days)
        $userGrowth = User::where('created_at', '>=', now()->subDays(7))
            ->selectRaw('DATE(created_at) as date, COUNT(*) as count')
            ->groupBy('date')
            ->orderBy('date')
            ->get();

        // Product Growth (last 7 days)
        $productGrowth = Product::where('created_at', '>=', now()->subDays(7))
            ->selectRaw('DATE(created_at) as date, COUNT(*) as count')
            ->groupBy('date')
            ->orderBy('date')
            ->get();

        // Top Categories (by product count)
        $topCategories = Category::withCount('products')
            ->orderBy('products_count', 'desc')
            ->limit(5)
            ->get();

        // Recent Users
        $recentUsers = User::with('roles')
            ->latest()
            ->limit(5)
            ->get();

        // Recent Products
        $recentProducts = Product::with(['user', 'category'])
            ->latest()
            ->limit(5)
            ->get();

        // Most Upvoted Products
        $topProducts = Product::approved()
            ->withCount('upvotes')
            ->orderBy('upvotes_count', 'desc')
            ->limit(5)
            ->get();

        return view('admin.dashboard', compact(
            'stats',
            'userGrowth',
            'productGrowth',
            'topCategories',
            'recentUsers',
            'recentProducts',
            'topProducts'
        ));
    }
}