<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\User;
use App\Models\Setting;
use App\Models\VisitorLog;
use App\Mail\PromotionMail;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\DB;

class MarketingController extends Controller
{
    public function index()
    {
        return view('admin.marketing.index');
    }

    public function promoteProducts()
    {
        if (!module_enabled('products') || !class_exists(\App\Modules\Products\Models\Product::class)) {
            return redirect()->route('admin.marketing.index')->with('error', 'O módulo de Produtos está desativado.');
        }

        $products = \App\Modules\Products\Models\Product::where('active', true)->with('category')->get();
        return view('admin.marketing.promote_products', compact('products'));
    }

    public function promoteServices()
    {
        if (!module_enabled('services') || !class_exists(\App\Modules\Services\Models\Service::class)) {
            return redirect()->route('admin.marketing.index')->with('error', 'O módulo de Serviços está desativado.');
        }

        $services = \App\Modules\Services\Models\Service::where('active', true)->get();
        return view('admin.marketing.promote_services', compact('services'));
    }

    public function analytics()
    {
        // Grouping by Country
        $countries = VisitorLog::select('country', DB::raw('count(*) as total'))
            ->groupBy('country')
            ->orderBy('total', 'desc')
            ->limit(10)
            ->get();

        // Grouping by City
        $cities = VisitorLog::select('city', 'region', DB::raw('count(*) as total'))
            ->groupBy('city', 'region')
            ->orderBy('total', 'desc')
            ->limit(10)
            ->get();

        // Data for last 7 days access chart
        $last7Days = collect(range(6, 0))->map(function ($days) {
            $date = now()->subDays($days)->format('Y-m-d');
            return [
                'date' => now()->subDays($days)->format('d/m'),
                'total' => VisitorLog::whereDate('created_at', $date)->count()
            ];
        });

        return view('admin.marketing.analytics', compact('countries', 'cities', 'last7Days'));
    }

    public function emailMarketing()
    {
        $products = collect();
        $services = collect();

        if (module_enabled('products') && class_exists(\App\Modules\Products\Models\Product::class)) {
            $products = \App\Modules\Products\Models\Product::where('active', true)->get();
        }

        if (module_enabled('services') && class_exists(\App\Modules\Services\Models\Service::class)) {
            $services = \App\Modules\Services\Models\Service::where('active', true)->get();
        }

        $userCount = User::where('user_type', 'User')->count();
        
        return view('admin.marketing.email', compact('products', 'services', 'userCount'));
    }

    public function sendEmailMarketing(Request $request)
    {
        $request->validate([
            'subject' => 'required|string|max:255',
            'message' => 'required|string',
            'button_text' => 'nullable|string|max:50',
            'button_url' => 'nullable|string|max:500|regex:/^https?:\/\/.+\..+$/i',
        ], [
            'button_url.regex' => 'O link do botão deve começar com http:// ou https:// e ter um formato válido.',
        ]);

        $users = User::where('user_type', 'User')->get();
        $company = (object)[
            'name' => Setting::get('company_name', config('app.name')),
        ];

        $productImage = null;
        if ($request->product_id && module_enabled('products') && class_exists(\App\Modules\Products\Models\Product::class)) {
            $product = \App\Modules\Products\Models\Product::find($request->product_id);
            if ($product && $product->image) {
                $productImage = asset('storage/' . $product->image);
            }
        } elseif ($request->service_id && module_enabled('services') && class_exists(\App\Modules\Services\Models\Service::class)) {
            $service = \App\Modules\Services\Models\Service::find($request->service_id);
            if ($service && $service->image) {
                $productImage = asset('storage/' . $service->image);
            }
        }

        foreach ($users as $user) {
            // Check if user wants to receive emails (preference)
            $prefs = $user->preferences ?? [];
            if ($prefs['notifications_email'] ?? true) {
                try {
                    Mail::to($user->email)->send(new PromotionMail(
                        $request->subject,
                        $request->message,
                        $request->button_text,
                        $request->button_url,
                        $productImage,
                        $company
                    ));
                } catch (\Exception $e) {
                    Log::error("Erro ao enviar e-mail de marketing para {$user->email}: " . $e->getMessage());
                }
            }
        }

        return redirect()->route('admin.marketing.email')->with('success', 'E-mail de marketing enviado para ' . $users->count() . ' clientes!');
    }
}