sdk.cart = (function(){
  var cart = {}
  
  cart.id = ""
  cart.token = ""

  // https://gist.github.com/fanfare/9a50c524aea417d0bf3e
  cart.initialize = function(opt){
    return $.ajax({
      method: "POST",
      url: sdk.path("Cart.API/1.6", "carts.json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-device": auth.device,
      },
      data: "{}",
      // data: opt.data,
      success: function(data){
        cart.id = data["CartSession"]["CartId"]
        cart.token = data["CartSession"]["CartToken"]
        auth.set_cart( cart.id, cart.token )
        opt.success(data)
      },
      error: opt.error,
    })
  }
  
  cart.set_user = function(opt){
    return $.ajax({
      method: "PUT",
      url: sdk.path("Cart.API/1.6", "carts/" + cart.id + "/user.json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-cart-token": cart.token,
      },
      data: JSON.stringify({
        "UserId": auth.user_id,
        "UserToken": auth.access_token,
      }),
      success: function(data){
        opt.success(data)
      },
      error: opt.error,
    })
  }
  
  // Code10, Size, Section
  cart.add_item = function(opt){
    return $.ajax({
      method: "POST",
      url: sdk.path("Cart.API/1.6", "carts/" + cart.id + "/items.json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-cart-token": cart.token,
      },
      data: JSON.stringify( opt.data ),
      success: function(data){
        // console.log(data)
        opt.success(data)
      },
      error: opt.error,
    })
  }

  cart.delete_item = function(opt){
    return $.ajax({
      method: "DELETE",
      url: sdk.path("Cart.API/1.6", "carts/" + cart.id +
                                    "/items/" + opt.data.Code10 +
                                    "/" + opt.data.Size + ".json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-cart-token": cart.token,
      },
      data: "{}",
      success: function(data){
        // console.log(data)
        opt.success(data)
      },
      error: opt.error,
    })
  }

  cart.get_status = function(opt){
    if (! cart.id) {
      return opt.error({ error: "no cart" })
    }
    return $.ajax({
      method: "GET",
      url: sdk.path("Cart.API/1.6", "carts/" + cart.id + ".json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-cart-token": cart.token,
        "x-yoox-device": auth.device,
      },
      success: function(data){
        if (data['Error']) {
          opt.error && opt.error(data)
        }
        else {
          opt.success(data)
        }
      },
      error: opt.error,
    })
  }

  cart.set_shipping_address = function(opt){
    return $.ajax({
      method: "PUT",
      url: sdk.path("Cart.API/1.6", "carts/" + cart.id + "/receiver.json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-cart-token": cart.token,
      },
      data: JSON.stringify(opt.data),
      success: function(data){
        // console.log(data)
        opt.success(data)
      },
      error: opt.error,
    })
  }
  
  // NB: Payment type may simply be 1 (credit card)
  cart.set_payment_type = function(opt){
    return $.ajax({
      method: "PUT",
      url: sdk.path("Cart.API/1.6", "carts/" + cart.id + "/paymentType.json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-cart-token": cart.token,
      },
      data: JSON.stringify( opt.data ),
      success: function(data){
        // console.log(data)
        opt.success(data)
      },
      error: opt.error,
    })
  }

  cart.get_card_types = function(opt){
    return $.ajax({
      method: "GET",
      url: sdk.path("Cart.API/1.6", "cardTypes.json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-cart-token": cart.token,
      },
      data: "",
      success: function(data){
        opt.success(data)
      },
      error: opt.error,
    })
  }

  // use with full CC data if not storing it in wallet
  cart.set_credit_card = function(opt){
    return $.ajax({
      method: "PUT",
      url: sdk.path("Cart.API/1.6", "carts/" + cart.id + "/creditCard.json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-cart-token": cart.token,
      },
      data: JSON.stringify( opt.data ),
      success: function(data){
        // console.log(data)
        opt.success(data)
      },
      error: opt.error,
    })
  }
  
  // use with a stored GUID
  // NB: if "verification number" is 1, use CVV/CID/CVC security code
  // if "verification number" is 2, use "Issue Number"
  cart.use_stored_credit_card = function(opt){
    var data = {
      "Guid": opt.data.guid,
      "UserId": auth.user_id,
      "AccessToken": auth.access_token,
    }
    if (opt.data.cvv) {
      data["Cvv"] = opt.data.cvv
    }
    if (opt.data.issue) {
      data["Issue"] = opt.data.issue
    }
    return $.ajax({
      method: "PUT",
      url: sdk.path("Cart.API/1.6", "carts/" + cart.id + "/userCreditCard.json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-cart-token": cart.token,
      },
      data: JSON.stringify(data),
      success: function(data){
        // console.log(data)
        opt.success(data)
      },
      error: opt.error,
    })
  }

  cart.secure_finalize = function(opt){
    return $.ajax({
      method: "POST",
      url: sdk.path("Cart.API/1.6", "carts/" + cart.id + "/secureFinalizer.json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-cart-token": cart.token,
        "x-yoox-device": auth.device,
      },
      data: JSON.stringify( opt.data || {} ),
      success: function(data){
        console.log(data)
        // order number is:
        // "Info": "2905Y07FA13020"
        opt.success(data)
      },
      error: opt.error,
    })
  }

  cart.finalize = function(opt){
    return $.ajax({
      method: "POST",
      url: sdk.path("Cart.API/1.6", "carts/" + cart.id + "/finalizer.json"),
      headers: {
        "x-yoox-appname": auth.appname,
        "x-yoox-cart-token": cart.token,
      },
      data: JSON.stringify( opt.data || {} ),
      success: function(data){
        console.log(data)
        // order number is:
        // "Info": "2905Y07FA13020"
        opt.success(data)
      },
      error: opt.error,
    })
  }
  
  return cart
})()