function formatPriceToLocale(amount, currency) {
	if (!(typeof amount === "number") || (!currency)) {
		throw Error('formatPriceToLocale(): params amount ' + amount + ' or currency ' + currency + ' are invalid!');
	}

	var amountAsNumber = Number(amount);
	return amountAsNumber.toLocaleString(undefined, { 
		style: "currency", 
		currency: currency
	});
	
}


function DiscountCoupon(correlationId, accountId,  currency, singleProductCheckout) {
	this.correlationId = correlationId;
	this.accountId = accountId;
	this.objectName = null;
	this.appliedDiscountValue = 0;
	this.appliedDiscountType = null;
	this.customersCode = null;
	this.currency = currency;
	this.singleProductCheckout = singleProductCheckout;
	this.insertDiscountLinkToBody = function() {
		var discountCouponDiv =  document.getElementById("discountCoupon");
		if (discountCouponDiv) {
			discountCouponDiv.innerHTML = "<a href='#' id='addCodeLink' class='customFont'>I have a discount code</a>";
			var _this = this;
			document.getElementById("addCodeLink").addEventListener('click', function (event) {
				_this.putCouponCodeProcess();
			})
			return true;
		}
		return false;
    };
	this.init = function() {
		var _this = this;
		if (_this.insertDiscountLinkToBody()) {
			return true;
		}
		return false;
	};
	this.getAppliedDiscountValue = function() {
		return this.appliedDiscountValue;
	};
	this.getAppliedDiscountType = function() {
		return this.appliedDiscountType;
	};
	this.getCustomersCode = function() {
		return this.customersCode;
	};
	this.defineDiscountVariablesOnDocument = function() {
		discountValue = this.appliedDiscountValue;
		discountType = this.appliedDiscountType;
		setupShippingMethodSelect();
	};
	this.changeButtonText = function() {
		classElements = document.getElementsByClassName('ableToDiscount');
		for (classElement of classElements ) {
			var buttonText = classElement.innerHTML;
			if (!["Request Quotation","Solicitar presupuesto","Richiesta d'offerta","solicite uma cotação"].includes(buttonText)) {//to prevent display problems
				var fragmentButtonText = buttonText.split(" ");
				var number = fragmentButtonText.pop();
				var text = fragmentButtonText.join(" ")
				var newPriceValue = formatPriceToLocale(Number(number.replace(/[^\d.]/g, '') * (100-this.getAppliedDiscountValue())/100 ), this.currency);
				var newButtonText = text + " " + newPriceValue + " (-" + this.getAppliedDiscountValue() + "%)" ;
				classElement.innerHTML = newButtonText; 
			} 
		}
	};
	this.putCouponCodeProcess = function() {
		Swal.fire({
			title: 'Put here you Discount Code!',
			input: 'text',
			showCancelButton: true,
			confirmButtonText: 'Confirm',
			cancelButtonText: 'Cancelar',
			customClass: "animated fadeIn",
			inputPlaceholder: 'Put Coupon Code here!',
			onClose: function(modal) {
		        $(".swal2-popup").removeClass('fadeIn');
		    }
		}).then((result) => {
			if (result.value) { 
				this.discountCouponRequest(result.value);
			} else if (result.dismiss != 'cancel') {
				this.errorResponceMessage('empty_field');
			}
		})
	};
	this.discountCouponRequest = function(discountCode) {

		var interactionInstant = new Date();

		var discountRequestObject = {
			accountId: this.accountId,
			discountCode: discountCode,
			timezone: interactionInstant.getTimezoneOffset()
		};

		request
		.post('/beta/discountcoupon/request')
		.set('X-Request-ID', correlationId)
		.send(discountRequestObject)
		/*.end();*/
		.end((err, res) => {
			if (err) {
				this.errorResponceMessage(res.body.reason)
				return false;
			}
			if (res.body.success) {
				if (( res.body.type  == "percentage") && (res.body.data) && (res.body.data.value)) {
					this.customersCode = discountCode;
					this.SuccessResponceMessage(res.body.type,res.body.data.value)
					return true;
				}
				this.errorResponceMessage(null);
				return false;
			} 
		});
	};
	this.SuccessResponceMessage = function(type, value) {
		switch(type) {

			case 'percentage': 	
				title = 'Concratulations!!';
				text = 'You hace a discount of ' + value + '% in this purchase!';
				break;
		}

		Swal.fire({
			type: 'success',
			title: title,
			text: text,
			showConfirmButton: true,
			confirmButtonText: 'Confirm',
			customClass: "animated fadeIn",
			onClose: function(modal) {
		        $(".swal2-popup").removeClass('fadeIn');
		    },
		    timer: 10000
		}).then(() => {
			this.updatePrice(type, value);
		});
	};
	this.updatePrice = function(type, value) {
		this.appliedDiscountValue = value;
		this.appliedDiscountType = type;
		this.changeButtonText();
		this.defineDiscountVariablesOnDocument();
		var discountCouponDiv =  document.getElementById("discountCoupon");
		if (discountCouponDiv) {
			discountCouponDiv.innerHTML = "<p style='color:green'><span class='fa fa-check-circle' style='font-size: 18px;' ></span> " + "Applied discount:" + " -" +this.getAppliedDiscountValue() + "%" + "</p>";
		}
		if (!singleProductCheckout) {
			window.parent.shoppingCart.setDiscountType(this.appliedDiscountType);
			window.parent.shoppingCart.setDiscountValue(this.appliedDiscountValue);
			window.parent.shoppingCart.updateShoppingCartTemplate();
			window.parent.shoppingCart.updateTemplate();
		}
	};
	this.errorResponceMessage = function(reason) {

		switch(reason) {

			case 'outdated_coupon_code': 	
				title = 'Outdated Coupon Code';
				text = 'The code is correct but it is outdated';
				break;

			case 'not_valid_coupon': 
				title = 'That is not a valid coupon!';
				text = 'Try it with other one!';
				break;

			case 'empty_field':
				title = 'Empty Code!';
				text = 'Your Coupon code is empty!';
				break;

			default: 
				title = 'Could not serve your request!';
				text = 'Please try again at a later time!';
				break;
		}

		Swal.fire({
			type: 'error',
			title: title,
			text: text,
			showConfirmButton: true,
			confirmButtonText: 'Confirm',
			timer: 10000
		}).then(() => {
			//this.updatePrice(null, 0);
		});
	};
	this.init();
}