HannahCarney/till_tech_test

var calculateTotal = function(){
  $.get("/total", function(data) {
    $("#totalPrice").text("Total: £" + data.total);
    $("#tax").text("Tax (8.64%): £" + data.tax);
    $("#afterTax").text("After Tax: £" + data.after);
  });
};

var addToList = function(){
  $.get("/items", function(data) {
     calculateTotal();
     $("#errorTill").empty();  
     $("#tillNumbers").empty();
    var size = +data.item.length;
    for (var i = 0; i < size; i++) {
      var button = data.item[i] + " x" + data.quantity[i] + "= £" +
       (+data.price[i]).toFixed(2) + " " + '<button value="' +
       data.item[i] +'" class="x '+ data.item[i].replace(/\s+/g, '') +
       '" id="' + data.quantity[i] +'">x</button>';
       $('<div />',{html: button}).appendTo("#tillNumbers");
    }
  });   
};

var validate = function(item, quantity) {
  var count = $("#tillNumbers").children().length;
  if (+quantity !== 0 && count < 7) {
    $.post("/items", {item: item, quantity: quantity}, function() { 
      addToList();
    });
  }
  else if (+quantity === 0){
    $("#errorTill").text("Enter a Quantity");
  }
  else {
    $("#errorTill").text("We can't fill anymore orders");
  }
};

var deleteItem = function(item){
  $.ajax({
    url: "/items",
    type: "DELETE",
    data: {item: item},
    success: function() {
      calculateTotal(); 
    }
  });
};

var showTotal = function() {
  $.get("/pay", function(data) {
    if (data.money >= 0.00) {
      $("#change").text("Change: £" + data.money);
    }
    else {
      $("#change").text("Not enough money");
    }
  });
};

var payTotal = function(money) {
   $.post("/pay", {money: money}, function() {
     showTotal();
   }); 
};

var nextCustomer = function() {
  $.get("/new", function() {
    calculateTotal();
    addToList();
  });
};

$(document).on("ready", function() {
 
  addToList();
  calculateTotal();
  
  $(document).on("click", "#buttonForAdd", function(e) {
      e.preventDefault();
      validate($( "#itemselect" ).val(), $("#quantityInput").val());     
    });

  $(document).on("click", ".x", function(e) {
   e.preventDefault();
     var item = $(this).attr("value");
     deleteItem(item);
     $(this).parent().remove();
  });  


  $(document).on("click", "#pay", function(e) {
   e.preventDefault();
     $("#change").empty();
     $("#entryTill").prop("hidden", "hidden");
     $("#buttonForAdd").prop("hidden", "hidden");
     $("#pay").prop("hidden", "hidden");
     $(".payForm").removeAttr("hidden");    
  });

  $(document).on("click", "#getChange", function(e) {
   e.preventDefault();
     var money = $( "#payInput").val();
     payTotal(money);
  });

   $(document).on("click", "#nextCustomer", function(e) {
   e.preventDefault();
     $("#entryTill").removeAttr("hidden");
     $("#buttonForAdd").removeAttr("hidden");
     $("#pay").removeAttr("hidden");
     $(".payForm").prop("hidden", "hidden"); 
     nextCustomer();
  });
});