erp/erpnext/public/js/payment/payments.js

// Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
// License: GNU General Public License v3. See license.txt

erpnext.payments = class payments extends erpnext.stock.StockController {
	make_payment() {
		var me = this;

		this.dialog = new frappe.ui.Dialog({
			title: "Payment",
		});

		this.dialog.show();
		this.$body = this.dialog.body;
		this.set_payment_primary_action();
		this.make_keyboard();
		this.select_text();
	}

	select_text() {
		$(this.$body)
			.find(".form-control")
			.click(function () {
				$(this).select();
			});
	}

	set_payment_primary_action() {
		var me = this;

		this.dialog.set_primary_action(__("Submit"), function () {
			// Allow no ZERO payment
			$.each(me.frm.doc.payments, function (index, data) {
				if (data.amount != 0) {
					me.dialog.hide();
					me.submit_invoice();
					return;
				}
			});
		});
	}

	make_keyboard() {
		var me = this;
		$(this.$body).empty();
		$(this.$body).html(frappe.render_template("pos_payment", this.frm.doc));
		this.show_payment_details();
		this.bind_keyboard_event();
		this.clear_amount();
	}

	make_multimode_payment() {
		var me = this;

		if (this.frm.doc.change_amount > 0) {
			me.payment_val = me.doc.outstanding_amount;
		}

		this.payments = frappe.model.add_child(this.frm.doc, "Multi Mode Payment", "payments");
		this.payments.mode_of_payment = this.dialog.fields_dict.mode_of_payment.get_value();
		this.payments.amount = flt(this.payment_val);
	}

	show_payment_details() {
		var me = this;
		var multimode_payments = $(this.$body).find(".multimode-payments").empty();
		if (this.frm.doc.payments.length) {
			$.each(this.frm.doc.payments, function (index, data) {
				$(
					frappe.render_template("payment_details", {
						mode_of_payment: data.mode_of_payment,
						amount: data.amount,
						idx: data.idx,
						currency: me.frm.doc.currency,
						type: data.type,
					})
				).appendTo(multimode_payments);

				if (data.type == "Cash" && data.amount == me.frm.doc.paid_amount) {
					me.idx = data.idx;
					me.selected_mode = $(me.$body).find(repl("input[idx='%(idx)s']", { idx: me.idx }));
					me.highlight_selected_row();
					me.bind_amount_change_event();
				}
			});
		} else {
			$("<p>No payment mode selected in pos profile</p>").appendTo(multimode_payments);
		}
	}

	set_outstanding_amount() {
		this.selected_mode = $(this.$body).find(repl("input[idx='%(idx)s']", { idx: this.idx }));
		this.highlight_selected_row();
		this.payment_val = 0.0;
		if (this.frm.doc.outstanding_amount > 0 && flt(this.selected_mode.val()) == 0.0) {
			//When user first time click on row
			this.payment_val = flt(
				this.frm.doc.outstanding_amount / this.frm.doc.conversion_rate,
				precision("outstanding_amount")
			);
			this.selected_mode.val(format_currency(this.payment_val, this.frm.doc.currency));
			this.update_payment_amount();
		} else if (flt(this.selected_mode.val()) > 0) {
			//If user click on existing row which has value
			this.payment_val = flt(this.selected_mode.val());
		}
		this.selected_mode.select();
		this.bind_amount_change_event();
	}

	bind_keyboard_event() {
		var me = this;
		this.payment_val = "";
		this.bind_form_control_event();
		this.bind_numeric_keys_event();
	}

	bind_form_control_event() {
		var me = this;
		$(this.$body)
			.find(".pos-payment-row")
			.click(function () {
				me.idx = $(this).attr("idx");
				me.set_outstanding_amount();
			});

		$(this.$body)
			.find(".form-control")
			.click(function () {
				me.idx = $(this).attr("idx");
				me.set_outstanding_amount();
				me.update_paid_amount(true);
			});

		$(this.$body)
			.find(".write_off_amount")
			.change(function () {
				me.write_off_amount(flt($(this).val()), precision("write_off_amount"));
			});

		$(this.$body)
			.find(".change_amount")
			.change(function () {
				me.change_amount(flt($(this).val()), precision("change_amount"));
			});
	}

	highlight_selected_row() {
		var selected_row = $(this.$body).find(repl(".pos-payment-row[idx='%(idx)s']", { idx: this.idx }));
		$(this.$body).find(".pos-payment-row").removeClass("selected-payment-mode");
		selected_row.addClass("selected-payment-mode");
		$(this.$body).find(".amount").attr("disabled", true);
		this.selected_mode.attr("disabled", false);
	}

	bind_numeric_keys_event() {
		var me = this;
		$(this.$body)
			.find(".pos-keyboard-key")
			.click(function () {
				me.payment_val += $(this).text();
				me.selected_mode.val(format_currency(me.payment_val, me.frm.doc.currency));
				me.idx = me.selected_mode.attr("idx");
				me.update_paid_amount();
			});

		$(this.$body)
			.find(".delete-btn")
			.click(function () {
				me.payment_val = cstr(flt(me.selected_mode.val())).slice(0, -1);
				me.selected_mode.val(format_currency(me.payment_val, me.frm.doc.currency));
				me.idx = me.selected_mode.attr("idx");
				me.update_paid_amount();
			});
	}

	bind_amount_change_event() {
		var me = this;
		this.selected_mode.change(function () {
			me.payment_val = flt($(this).val()) || 0.0;
			me.selected_mode.val(format_currency(me.payment_val, me.frm.doc.currency));
			me.idx = me.selected_mode.attr("idx");
			me.update_payment_amount();
		});
	}

	clear_amount() {
		var me = this;
		$(this.$body)
			.find(".clr")
			.click(function (e) {
				e.stopPropagation();
				me.idx = $(this).attr("idx");
				me.selected_mode = $(me.$body).find(repl("input[idx='%(idx)s']", { idx: me.idx }));
				me.payment_val = 0.0;
				me.selected_mode.val(0.0);
				me.highlight_selected_row();
				me.update_payment_amount();
			});
	}

	write_off_amount(write_off_amount) {
		this.frm.doc.write_off_amount = flt(write_off_amount, precision("write_off_amount"));
		this.frm.doc.base_write_off_amount = flt(
			this.frm.doc.write_off_amount * this.frm.doc.conversion_rate,
			precision("base_write_off_amount")
		);
		this.calculate_outstanding_amount(false);
		this.show_amounts();
	}

	change_amount(change_amount) {
		var me = this;

		this.frm.doc.change_amount = flt(change_amount, precision("change_amount"));
		this.calculate_write_off_amount();
		this.show_amounts();
	}

	update_paid_amount(update_write_off) {
		var me = this;
		if (["change_amount", "write_off_amount"].includes(this.idx)) {
			var value = me.selected_mode.val();
			if (me.idx == "change_amount") {
				me.change_amount(value);
			} else {
				if (flt(value) == 0 && update_write_off && me.frm.doc.outstanding_amount > 0) {
					value = flt(
						me.frm.doc.outstanding_amount / me.frm.doc.conversion_rate,
						precision(me.idx)
					);
				}
				me.write_off_amount(value);
			}
		} else {
			this.update_payment_amount();
		}
	}

	update_payment_amount() {
		var me = this;

		$.each(this.frm.doc.payments, function (index, data) {
			if (cint(me.idx) == cint(data.idx)) {
				data.amount = flt(me.selected_mode.val(), 2);
			}
		});

		this.calculate_outstanding_amount(false);
		this.show_amounts();
	}

	show_amounts() {
		var me = this;
		$(this.$body)
			.find(".write_off_amount")
			.val(format_currency(this.frm.doc.write_off_amount, this.frm.doc.currency));
		$(this.$body)
			.find(".paid_amount")
			.text(format_currency(this.frm.doc.paid_amount, this.frm.doc.currency));
		$(this.$body)
			.find(".change_amount")
			.val(format_currency(this.frm.doc.change_amount, this.frm.doc.currency));
		$(this.$body)
			.find(".outstanding_amount")
			.text(
				format_currency(
					this.frm.doc.outstanding_amount,
					frappe.get_doc(":Company", this.frm.doc.company).default_currency
				)
			);
		this.update_invoice();
	}
};