<?php

namespace App\Controllers;

use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Slim\Views\Twig;

class AdminBaseController
{
    protected Twig $view;
    protected \PDO $pdo;

    public function __construct(\PDO $pdo, Twig $view)
    {
        $this->pdo = $pdo;
        $this->view = $view;
    }

    /**
     * Render a template
     */
    protected function render(Response $response, string $template, array $data = []): Response
    {
        // Add common admin data
        $data['auth'] = [
            'check' => isset($_SESSION['user_id']),
            'user' => [
                'username' => $_SESSION['username'] ?? 'Admin',
                'is_admin' => $_SESSION['is_admin'] ?? false
            ]
        ];
        
        // Add current route for active menu highlighting
        $route = $this->getCurrentRoute();
        if ($route) {
            $data['current_route'] = $route;
        }

        return $this->view->render($response, $template, $data);
    }

    /**
     * Get current route name
     */
    protected function getCurrentRoute(): ?string
    {
        $route = $_SERVER['REQUEST_URI'] ?? '/';
        $basePath = '/admin/';
        
        if (strpos($route, $basePath) === 0) {
            $route = substr($route, strlen($basePath));
            $parts = explode('/', $route);
            return $parts[0] ?: 'index';
        }
        
        return null;
    }

    /**
     * Return JSON response
     */
    protected function json(Response $response, $data, int $status = 200): Response
    {
        $response->getBody()->write(json_encode($data));
        return $response
            ->withHeader('Content-Type', 'application/json')
            ->withStatus($status);
    }
}