Router.php

<?php

namespace Details;

use Details\controllers\ProductController;
use Details\controllers\UserController;
use Details\controllers\InvoiceController;
use Details\models\User;


class Router
{
    public array $getRoutes = [];
    public array $postRoutes = [];
    public Database $db;

    public function __construct()
    {
        $this->db = new Database();
    }
    public function get($url, $fn)
    {
        $this->getRoutes[$url] = $fn;
    }
    public function post($url, $fn)
    {
        $this->postRoutes[$url] = $fn;
    }
    public function resolve() //detects what is the current route 
    {
        $currentUrl = $_SERVER['REQUEST_URI'] ?? "/";
        $method = $_SERVER['REQUEST_METHOD'];
        $action = $_GET['action'] ?? '';


        // Check if the URL matches the pattern
        if (preg_match('~^/checkout/detail/(\d+)$~', $currentUrl, $matches)) {
            // Extract the ID from the matches array
            $id = $matches[1];
            $_SESSION['invoice_id'] = $id;
            $this->get("/checkout/detail", [InvoiceController::class, "show"]);
            $fn = $this->getRoutes["/checkout/detail"];
        } else {

            if ($method === 'GET') {
                $fn = $this->getRoutes[$currentUrl] ?? null;
            } else if ($method === 'POST' && $action === 'signup') {
                $fn = [UserController::class, 'signup'];
            } else if ($method === 'POST' && $action === 'signin') {
                $fn = [UserController::class, 'signin'];
            } else if ($method === 'POST' && $action === 'create_product') {
                $fn = [ProductController::class, 'create'];
            } else if ($method === 'POST' && $action === 'update_product') {
                $fn = [ProductController::class, 'update'];
            } else {
                $fn = $this->postRoutes[$currentUrl] ?? null;
            }
        }
        if ($fn) {
            // echo "<pre>";
            // var_dump($this->getRoutes);
            // echo "</pre>";
            call_user_func($fn, $this); //aw functiona render bka ka dawa krawa ka rendery view aka  wa $this routery pe anerin  wakw parameter   
        }
        //  else {
        //     echo 'page not found';
        // }
    }
    public function renderView($view, $params = [])  //products/index.php
    {
        foreach ($params as $key => $value) {
            $$key = $value;
        }
        ob_start(); //cashing out in browser  put  it wont send to the browser it will save it in the buffer
        include_once __DIR__ . "/views/$view.php"; //and save it in content varibale 
        $content = ob_get_clean(); //now view file is saved in $content and its inside _layout
        include_once __DIR__ . "/views/_layout.php";
    }
}