<?php

namespace App\Controllers\Admin;

use App\Controllers\Controller;
use App\Core\Request;
use App\Core\Response;
use App\Services\Database\Connection;
use PDO;

class DashboardController extends Controller
{
    private PDO $pdo;

    public function __construct(Connection $connection)
    {
        parent::__construct();
        $this->pdo = $connection->getPdo();
    }

    public function index(Request $request, Response $response): string
    {
        $user = $request->routeParam('_authenticated_user');
        $lang = $this->session->get('lang', 'en');

        // Real stats from database
        $orgCount = (int)$this->pdo->query("SELECT COUNT(*) FROM organizations WHERE deleted_at IS NULL")->fetchColumn();
        $vcCount = (int)$this->pdo->query("SELECT COUNT(*) FROM organizations WHERE type='vc' AND deleted_at IS NULL")->fetchColumn();
        $acceleratorCount = (int)$this->pdo->query("SELECT COUNT(*) FROM organizations WHERE type='accelerator' AND deleted_at IS NULL")->fetchColumn();
        $opportunityCount = (int)$this->pdo->query("SELECT COUNT(*) FROM opportunities WHERE deleted_at IS NULL AND status='active'")->fetchColumn();
        $contactCount = (int)$this->pdo->query("SELECT COUNT(*) FROM contacts WHERE deleted_at IS NULL")->fetchColumn();
        $sourceCount = (int)$this->pdo->query("SELECT COUNT(*) FROM sources WHERE status='active'")->fetchColumn();
        $todayOpps = (int)$this->pdo->query("SELECT COUNT(*) FROM opportunities WHERE DATE(created_at) = CURDATE()")->fetchColumn();

        // Recent opportunities
        $stmt = $this->pdo->query(
            "SELECT o.*, org.name as org_name FROM opportunities o 
             LEFT JOIN organizations org ON org.id = o.organization_id 
             WHERE o.deleted_at IS NULL 
             ORDER BY o.created_at DESC LIMIT 10"
        );
        $recentOpps = $stmt->fetchAll() ?: [];

        // Opportunities by type
        $byType = $this->pdo->query(
            "SELECT type, COUNT(*) as count FROM opportunities WHERE deleted_at IS NULL GROUP BY type"
        )->fetchAll(PDO::FETCH_KEY_PAIR) ?: [];

        // Recent activity
        $stmt = $this->pdo->query("SELECT * FROM activity_logs ORDER BY created_at DESC LIMIT 10");
        $recentActivities = $stmt->fetchAll() ?: [];

        $langFile = __DIR__ . "/../../resources/lang/{$lang}.php";
        $t = file_exists($langFile) ? require $langFile : [];

        return $this->render('admin/dashboard', [
            'user' => $user,
            'title' => $t['dashboard'] ?? 'Dashboard',
            't' => $t,
            'lang' => $lang,
            'stats' => [
                'organizations' => $orgCount,
                'vc' => $vcCount,
                'accelerators' => $acceleratorCount,
                'opportunities' => $opportunityCount,
                'contacts' => $contactCount,
                'sources' => $sourceCount,
                'today' => $todayOpps,
            ],
            'recent_opportunities' => $recentOpps,
            'opportunities_by_type' => $byType,
            'recent_activities' => $recentActivities,
        ], 'admin');
    }
}