const CART_DATA = 'CART_DATA';

let cartLength = 0;
const CART_ADD = 'CART_ADD';
function getCartData(){
    const data = localStorage.getItem(CART_DATA);
    if(data) return JSON.parse(data);
    return null;
}

function removeCartData(){
    localStorage.removeItem(CART_DATA);
}

function setCartData(data){
    localStorage.setItem(CART_DATA,JSON.stringify(data));
}

function setLengthCart(){
  const data =   getCartData();
  if(!data) return;

  
  let length = 0;

  for(let item in data){
    let curr = data[item];
    length += parseInt(curr.quantity);
  }

  if(length>0){
    $('.cartnumcount').removeClass('d-none').html(length);
  }else{
    $('.cartnumcount').addClass('d-none').html(0);
  }

}


function getQuantityById(id){
   const data =  getCartData();
   if(!data) return;

   for(let item in data){
        if(id == item){
            $('#quantity').val(products[item].quantity);
        }
    }
}

function updateCartQuantity(id,val){
    const data = getCartData();
    if(!data) return;


    data[id].quantity = val;

    
    setCartData(data);
    updateSummaryPriceAdd();

}

function removeCartItem(id){
  
    let data = getCartData();
    if(!data) return;

    let newdata = {};
   
    for(let item in data){
        if(item != id){
            newdata[item] = data[item];
        }
    }

    setCartData(newdata);
    updateSummaryPriceAdd();

    return Object.keys(newdata).length;
}

function updateSummaryPriceAdd(){
    let data = getCartData();
    let totalSummaryPrice = $('.totalSummaryPrice');
    let totalPrice = $('.totalPrice');
    let currecy = $('.currecy');
    let noofitems = $('.noofitems');
    if(!data) return;
    let len = 0;
    let totalAmt = 0;
    for(let item in data) {
        let {price,quantity} = data[item];
        totalAmt += parseInt(price*quantity);
        len += parseInt(quantity);
    }
    const [currencySymbol,amount] = getCurrencySymbol(totalAmt);
    noofitems.html(len);

    totalSummaryPrice.html(amount);
    totalPrice.html(amount);
    currecy.html(currencySymbol);


}

function initAddToCart(){

    addEventListeners();

    function addToCartFun(){
        const data = getCartData();
          
        let id =  window.location.search.split('=')[1];
        const qty = parseInt($('#addtocart').data('qty'));
        if(!data){
            
            let cartObj = {};
          
      
            cartObj[$('#skudetailitem').val()]  = {
                name:$('.productname').html(),
                price:$('.price').html(),
                quantity:$('#quantity').val(),
                img:$('.productDetailsMain img').attr('src'),
                sku:$('#skudetailitem').val(),
                totalQty:qty,
                productid:$('#productidtag').val(),
                itemid:$('#itemidtag').val()
            }


            addtoCart(cartObj);
            //$('.cartnumcount').removeClass('d-none').html(1);
            setLengthCart();
           
        }else{
            //if(!data[id]) data['length']++;
            let name = $('.productname').html();
            let price = $('.price').html();
            let quantity = $('#quantity').val();
            let img = $('.productDetailsMain img').attr('src');
            let sku = $('#skudetailitem').val();

           
       
            if(data[$('#skudetailitem').val()]){
                data[$('#skudetailitem').val()] = {
                    name:name,
                    price:price,
                    quantity: parseInt(data[sku].quantity)+parseInt(quantity),
                    img:img,
                    sku:sku,
                    totalQty:qty,
                    productid:$('#productidtag').val(),
                    itemid:$('#itemidtag').val()
                }
                addtoCart(data);
            }else{
                data[$('#skudetailitem').val()] = {
                    name:name,
                    price:price,
                    quantity:parseInt(quantity),
                    img:img,
                    sku:sku,
                    totalQty:qty,
                    productid:$('#productidtag').val(),
                    itemid:$('#itemidtag').val()
                }
                addtoCart(data);
            }
            
        }

        setLengthCart();

    }
    
    function addEventListeners(){
        $('#addtocart').html('Add to cart');
        $('#addtocart').removeAttr('gotocart');
        $('#addtocart').off('click').click((e)=>{
     
            $('.insufficientqty').addClass('d-none');
            const qty = parseInt($('#addtocart').data('qty'));
      
            if(parseInt($('#quantity').val())>qty){
                $('.insufficientqty').removeClass('d-none');
                return;
            }
            // $('#addtocart').off().click(function (el){
            //     window.location.href = '/shopping-cart.html';

            // });

            addToCartFun();
       
            toasterHelper('success',"Item added to cart","toast-top-right");
           
        //    $('#addtocart').html('Go to cart');
        //    debugger;
        //    $('#addtocart').attr('gotocart',1);
        });

        // $('.quantityHTML #quantity').off('change').change(function (e){
        //    let sku =  $('#skudetailitem').val();
        //    let data = getCartData();
        //    const qty = parseInt($('#addtocart').data('qty'));
        //    let isCart =   $('#addtocart').attr('gotocart');
        //    if(!isCart) return;
        //    if(parseInt($('#quantity').val())>qty){
        //     $('.insufficientqty').removeClass('d-none');
        //     return;
        // }
        //    if(!data[sku]){
        //     return;
        //    }

        //    data[sku].quantity =  $('.quantityHTML #quantity').val();
        //    toasterHelper("success","Your item quantity was been updated","toast-top-right")
        //    setCartData(data);
        //    setLengthCart();
        // })

        $('.buynow').off('click').click(async (e)=>{
            addToCartFun();
            const res = await COOKIE_HELPER.validateToken();
            if(!res.response){
                localStorage.setItem(CART_ADD,true);
                window.location.href = '/login.html';
                
                $('.checkoutbtn').find('span').removeClass('d-none');
                $('.checkoutbtn').find('div').addClass('d-none');
                 return;
            }
            window.location.href = '/selectdelivery.html';

        }); 
    }

    function addtoCart(data){
        const currData = getCartData();
        let newData = {...currData,...data};
        setCartData(newData);
    }
}

initAddToCart();