<?php
session_start(); // Make sure to start the session

include_once "admin/config.php";
include_once "top-link.php";

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $id = $_POST['sr_no'];
    $name = $_POST['name'];
    $price = $_POST['price'];
    $image = $_POST['image'];
    $size = $_POST['size'];

    $product = [
        'p_id' => $id,       // Use $id instead of $sr_no
        "quantity" => 1,     // Set default quantity to 1
        "name" => $name,
        "rate" => $price,
        "img1" => $image,
        "size" => $size
    ];

    if (isset($_POST['add_product'])) {
        if (!isset($_SESSION['cart'])) {
            $_SESSION['cart'][] = $product;
            echo "<script>
                      window.location.href = history.back();
                  </script>";
            // echo "<script>
            //           alert('Item Added!');
            //           window.location.href = history.back();
            //       </script>";
        } else {
            $is_already_added = false; // Initialize flag
            foreach ($_SESSION['cart'] as $store_product) {
                if ($store_product['p_id'] == $product['p_id']) { // Compare IDs
                    $is_already_added = true;
                    break;
                }
            }
            if (!$is_already_added) {
                $_SESSION['cart'][] = $product;
                echo "<script>
                      window.location.href = history.back();
                  </script>";
                // echo "<script>
                //       alert('Item Added!');
                //       window.location.href = history.back();
                //   </script>";
            } else {
                echo "<script>
                    window.location.href = history.back();
                </script>";
                // echo "<script>
                //     alert('Item Already Added!');
                //     window.location.href = history.back();
                // </script>";
            }
        }
    }
    
    if(isset($_POST['remove_product'])){
        foreach($_SESSION['cart'] as $key => $re_product){
            if($re_product['name']==$_POST['item_name']){
                unset($_SESSION['cart'][$key]);
                $_SESSION['cart'] = array_values($_SESSION['cart']);
                echo "<script>
            window.location.href='cart.html';
        </script>";
        //         echo "<script>
        //     alert('Item Removed!');
        //     window.location.href='cart.html';
        // </script>";
            }
        }   
    }
    if(isset($_POST['mod_quantity'])){
        foreach($_SESSION['cart'] as $key => $re_product){
            if($re_product['name']==$_POST['item_name']){
                $_SESSION['cart'][$key]['quantity'] = $_POST['mod_quantity'];
                echo "<script>
            window.location.href='cart.html';
        </script>";
            }
        }   
    }
    
    
    }
?>