<?php

namespace Modules\Affiliates\Controllers;

use App\Controllers\BaseAdminController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Modules\AffiliatesAdmin\Models\Affiliate;
use Modules\AffiliatesAdmin\Models\AffiliateCommission;
use Modules\AffiliatesAdmin\Models\AffiliateBanner;
use Modules\AffiliatesAdmin\Models\AffiliateClick;
use Symfony\Component\HttpFoundation\RedirectResponse;

class AffiliatesController extends BaseAdminController
{
    /**
     * Check if user has permission.
     *
     * @param string $permission
     * @return void
     */
    protected function checkPermission(string $permission)
    {
        $user = $this->getCurrentUser();
        if (!$user || !$user->hasPermission($permission)) {
            $this->addFlash('error', 'Você não tem permissão para acessar esta área.');
            $this->redirect('admin/dashboard')->send();
            exit;
        }
    }

    public function index(): Response
    {
        $affiliateId = $_SESSION['affiliate_id'] ?? null;

        if (!$affiliateId) {
            return new RedirectResponse('/login');
        }

        $affiliate = Affiliate::find($affiliateId);

        if (!$affiliate) {
            return new RedirectResponse('/login');
        }

        $totalEarned = AffiliateCommission::where('affiliate_id', $affiliateId)
                                        ->where('status', 'approved')
                                        ->sum('amount');
        
        $pendingCommissions = AffiliateCommission::where('affiliate_id', $affiliateId)
                                                ->where('status', 'pending')
                                                ->count();

        $banners = AffiliateBanner::where('is_active', true)->get();

        return $this->renderAdminView('@affiliates/dashboard/index.twig', [
            'affiliate' => $affiliate,
            'totalEarned' => $totalEarned,
            'pendingCommissions' => $pendingCommissions,
            'banners' => $banners,
        ]);
    }

    public function banners(): Response
    {
        $affiliateId = $_SESSION['affiliate_id'] ?? null;
        if (!$affiliateId) {
            return new RedirectResponse('/login');
        }

        $banners = AffiliateBanner::where('is_active', true)->get();
        return $this->renderAdminView('@affiliates/banners/index.twig', ['banners' => $banners]);
    }

    public function bannerCode(int $id): Response
    {
        $affiliateId = $_SESSION['affiliate_id'] ?? null;
        if (!$affiliateId) {
            return new RedirectResponse('/login');
        }

        $banner = AffiliateBanner::findOrFail($id);
        return $this->renderAdminView('@affiliates/banners/code.twig', ['banner' => $banner, 'affiliateId' => $affiliateId]);
    }

    public function commissions(): Response
    {
        $affiliateId = $_SESSION['affiliate_id'] ?? null;
        if (!$affiliateId) {
            return new RedirectResponse('/login');
        }

        $commissions = AffiliateCommission::where('affiliate_id', $affiliateId)->get();
        return $this->renderAdminView('@affiliates/commissions/index.twig', ['commissions' => $commissions]);
    }

    public function profile(): Response
    {
        $affiliateId = $_SESSION['affiliate_id'] ?? null;
        if (!$affiliateId) {
            return new RedirectResponse('/login');
        }

        $affiliate = Affiliate::findOrFail($affiliateId);
        return $this->renderAdminView('@affiliates/profile/index.twig', ['affiliate' => $affiliate]);
    }

    public function trackClick(Request $request, string $affiliateCode, int $bannerId): Response
    {
        $affiliate = Affiliate::where('affiliate_code', $affiliateCode)->first();
        $banner = AffiliateBanner::find($bannerId);

        if ($affiliate && $banner) {
            AffiliateClick::create([
                'affiliate_id' => $affiliate->id,
                'banner_id' => $banner->id,
                'ip_address' => $request->getClientIp(),
                'user_agent' => $request->headers->get('User-Agent'),
                'referrer' => $request->headers->get('Referer'),
            ]);
            return new RedirectResponse($banner->target_url);
        }

        return new RedirectResponse('/');
    }
}