// Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors // License: GNU General Public License v3. See license.txt frappe.provide("erpnext"); frappe.require("assets/erpnext/js/controllers/stock_controller.js"); erpnext.taxes_and_totals = erpnext.stock.StockController.extend({ calculate_taxes_and_totals: function(update_paid_amount) { this.discount_amount_applied = false; this._calculate_taxes_and_totals(); if (frappe.meta.get_docfield(this.frm.doc.doctype, "discount_amount")) this.apply_discount_amount(); // Advance calculation applicable to Sales /Purchase Invoice if(in_list(["Sales Invoice", "Purchase Invoice"], this.frm.doc.doctype) && this.frm.doc.docstatus < 2) { this.calculate_total_advance(update_paid_amount); } // Sales person's commission if(in_list(["Quotation", "Sales Order", "Delivery Note", "Sales Invoice"], this.frm.doc.doctype)) { this.calculate_commission(); this.calculate_contribution(); } this.frm.refresh_fields(); }, _calculate_taxes_and_totals: function() { this.validate_conversion_rate(); this.calculate_item_values(); this.initialize_taxes(); this.determine_exclusive_rate(); this.calculate_net_total(); this.calculate_taxes(); this.calculate_totals(); this._cleanup(); this.show_item_wise_taxes(); }, validate_conversion_rate: function() { this.frm.doc.conversion_rate = flt(this.frm.doc.conversion_rate, precision("conversion_rate")); var conversion_rate_label = frappe.meta.get_label(this.frm.doc.doctype, "conversion_rate", this.frm.doc.name); var company_currency = this.get_company_currency(); if(!this.frm.doc.conversion_rate) { frappe.throw(repl('%(conversion_rate_label)s' + __(' is mandatory. Maybe Currency Exchange record is not created for ') + '%(from_currency)s' + __(" to ") + '%(to_currency)s', { "conversion_rate_label": conversion_rate_label, "from_currency": this.frm.doc.currency, "to_currency": company_currency })); } }, calculate_item_values: function() { var me = this; if (!this.discount_amount_applied) { $.each(this.frm.doc["items"] || [], function(i, item) { frappe.model.round_floats_in(item); item.net_rate = item.rate; item.amount = flt(item.rate * item.qty, precision("amount", item)); item.net_amount = item.amount; item.item_tax_amount = 0.0; me.set_in_company_currency(item, ["price_list_rate", "rate", "amount", "net_rate", "net_amount"]); }); } }, set_in_company_currency: function(doc, fields) { var me = this; $.each(fields, function(i, f) { doc["base_"+f] = flt(flt(doc[f], precision(f, doc)) * me.frm.doc.conversion_rate, precision("base_" + f, doc)); }) }, initialize_taxes: function() { var me = this; $.each(this.frm.doc["taxes"] || [], function(i, tax) { tax.item_wise_tax_detail = {}; tax_fields = ["total", "tax_amount_after_discount_amount", "tax_amount_for_current_item", "grand_total_for_current_item", "tax_fraction_for_current_item", "grand_total_fraction_for_current_item"] if (cstr(tax.charge_type) != "Actual" && !(me.discount_amount_applied && me.frm.doc.apply_discount_on=="Grand Total")) tax_fields.push("tax_amount"); $.each(tax_fields, function(i, fieldname) { tax[fieldname] = 0.0 }); if (!this.discount_amount_applied) { cur_frm.cscript.validate_taxes_and_charges(tax.doctype, tax.name); me.validate_inclusive_tax(tax); } frappe.model.round_floats_in(tax); }); }, determine_exclusive_rate: function() { var me = this; var has_inclusive_tax = false; $.each(me.frm.doc["taxes"] || [], function(i, row) { if(cint(row.included_in_print_rate)) has_inclusive_tax = true; }) if(has_inclusive_tax==false) return; $.each(me.frm.doc["items"] || [], function(n, item) { var item_tax_map = me._load_item_tax_rate(item.item_tax_rate); var cumulated_tax_fraction = 0.0; $.each(me.frm.doc["taxes"] || [], function(i, tax) { tax.tax_fraction_for_current_item = me.get_current_tax_fraction(tax, item_tax_map); if(i==0) { tax.grand_total_fraction_for_current_item = 1 + tax.tax_fraction_for_current_item; } else { tax.grand_total_fraction_for_current_item = me.frm.doc["taxes"][i-1].grand_total_fraction_for_current_item + tax.tax_fraction_for_current_item; } cumulated_tax_fraction += tax.tax_fraction_for_current_item; }); if(cumulated_tax_fraction && !me.discount_amount_applied) { item.net_amount = flt(item.amount / (1 + cumulated_tax_fraction), precision("net_amount", item)); item.net_rate = flt(item.net_amount / item.qty, precision("net_rate", item)); me.set_in_company_currency(item, ["net_rate", "net_amount"]); // if(item.discount_percentage == 100) { // item.base_price_list_rate = item.base_rate; // item.base_rate = 0.0; // } else { // item.base_price_list_rate = flt(item.base_rate / (1 - item.discount_percentage / 100.0), // precision("base_price_list_rate", item)); // } } }); }, get_current_tax_fraction: function(tax, item_tax_map) { // Get tax fraction for calculating tax exclusive amount // from tax inclusive amount var current_tax_fraction = 0.0; if(cint(tax.included_in_print_rate)) { var tax_rate = this._get_tax_rate(tax, item_tax_map); if(tax.charge_type == "On Net Total") { current_tax_fraction = (tax_rate / 100.0); } else if(tax.charge_type == "On Previous Row Amount") { current_tax_fraction = (tax_rate / 100.0) * this.frm.doc["taxes"][cint(tax.row_id) - 1].tax_fraction_for_current_item; } else if(tax.charge_type == "On Previous Row Total") { current_tax_fraction = (tax_rate / 100.0) * this.frm.doc["taxes"][cint(tax.row_id) - 1].grand_total_fraction_for_current_item; } } return current_tax_fraction; }, _get_tax_rate: function(tax, item_tax_map) { return (keys(item_tax_map).indexOf(tax.account_head) != -1) ? flt(item_tax_map[tax.account_head], precision("rate", tax)) : tax.rate; }, calculate_net_total: function() { var me = this; this.frm.doc.total = this.frm.doc.base_total = this.frm.doc.net_total = this.frm.doc.base_net_total = 0.0; $.each(this.frm.doc["items"] || [], function(i, item) { me.frm.doc.total += item.amount; me.frm.doc.base_total += item.base_amount; me.frm.doc.net_total += item.net_amount; me.frm.doc.base_net_total += item.base_net_amount; }); frappe.model.round_floats_in(this.frm.doc, ["total", "base_total", "net_total", "base_net_total"]); }, calculate_taxes: function() { var me = this; var actual_tax_dict = {}; // maintain actual tax rate based on idx $.each(this.frm.doc["taxes"] || [], function(i, tax) { if (tax.charge_type == "Actual") { actual_tax_dict[tax.idx] = flt(tax.tax_amount, precision("tax_amount", tax)); } }); $.each(this.frm.doc["items"] || [], function(n, item) { var item_tax_map = me._load_item_tax_rate(item.item_tax_rate); $.each(me.frm.doc["taxes"] || [], function(i, tax) { // tax_amount represents the amount of tax for the current step var current_tax_amount = me.get_current_tax_amount(item, tax, item_tax_map); // Adjust divisional loss to the last item if (tax.charge_type == "Actual") { actual_tax_dict[tax.idx] -= current_tax_amount; if (n == me.frm.doc["items"].length - 1) { current_tax_amount += actual_tax_dict[tax.idx] } } // accumulate tax amount into tax.tax_amount if (tax.charge_type != "Actual" && !(me.discount_amount_applied && me.frm.doc.apply_discount_on=="Grand Total")) tax.tax_amount += current_tax_amount; // store tax_amount for current item as it will be used for // charge type = 'On Previous Row Amount' tax.tax_amount_for_current_item = current_tax_amount; // tax amount after discount amount tax.tax_amount_after_discount_amount += current_tax_amount; // for buying if(tax.category) { // if just for valuation, do not add the tax amount in total // hence, setting it as 0 for further steps current_tax_amount = (tax.category == "Valuation") ? 0.0 : current_tax_amount; current_tax_amount *= (tax.add_deduct_tax == "Deduct") ? -1.0 : 1.0; } // Calculate tax.total viz. grand total till that step // note: grand_total_for_current_item contains the contribution of // item's amount, previously applied tax and the current tax on that item if(i==0) { tax.grand_total_for_current_item = flt(item.net_amount + current_tax_amount, precision("total", tax)); } else { tax.grand_total_for_current_item = flt(me.frm.doc["taxes"][i-1].grand_total_for_current_item + current_tax_amount, precision("total", tax)); } // in tax.total, accumulate grand total for each item tax.total += tax.grand_total_for_current_item; // set precision in the last item iteration if (n == me.frm.doc["items"].length - 1) { me.round_off_totals(tax); // adjust Discount Amount loss in last tax iteration if ((i == me.frm.doc["taxes"].length - 1) && me.discount_amount_applied && me.frm.doc.apply_discount_on == "Grand Total") me.adjust_discount_amount_loss(tax); } }); }); }, _load_item_tax_rate: function(item_tax_rate) { return item_tax_rate ? JSON.parse(item_tax_rate) : {}; }, get_current_tax_amount: function(item, tax, item_tax_map) { var tax_rate = this._get_tax_rate(tax, item_tax_map); var current_tax_amount = 0.0; if(tax.charge_type == "Actual") { // distribute the tax amount proportionally to each item row var actual = flt(tax.tax_amount, precision("tax_amount", tax)); current_tax_amount = this.frm.doc.net_total ? ((item.net_amount / this.frm.doc.net_total) * actual) : 0.0; } else if(tax.charge_type == "On Net Total") { current_tax_amount = (tax_rate / 100.0) * item.net_amount; } else if(tax.charge_type == "On Previous Row Amount") { current_tax_amount = (tax_rate / 100.0) * this.frm.doc["taxes"][cint(tax.row_id) - 1].tax_amount_for_current_item; } else if(tax.charge_type == "On Previous Row Total") { current_tax_amount = (tax_rate / 100.0) * this.frm.doc["taxes"][cint(tax.row_id) - 1].grand_total_for_current_item; } current_tax_amount = flt(current_tax_amount, precision("tax_amount", tax)); this.set_item_wise_tax(item, tax, tax_rate, current_tax_amount); return current_tax_amount; }, set_item_wise_tax: function(item, tax, tax_rate, current_tax_amount) { // store tax breakup for each item var key = item.item_code || item.item_name; var item_wise_tax_amount = current_tax_amount * this.frm.doc.conversion_rate; if (tax.item_wise_tax_detail && tax.item_wise_tax_detail[key]) item_wise_tax_amount += tax.item_wise_tax_detail[key][1] tax.item_wise_tax_detail[key] = [tax_rate,flt(item_wise_tax_amount, precision("base_tax_amount", tax))] }, round_off_totals: function(tax) { tax.total = flt(tax.total, precision("total", tax)); tax.tax_amount = flt(tax.tax_amount, precision("tax_amount", tax)); tax.tax_amount_after_discount_amount = flt(tax.tax_amount_after_discount_amount, precision("tax_amount", tax)); this.set_in_company_currency(tax, ["total", "tax_amount", "tax_amount_after_discount_amount"]); }, adjust_discount_amount_loss: function(tax) { var discount_amount_loss = this.frm.doc.grand_total - flt(this.frm.doc.discount_amount) - tax.total; tax.tax_amount_after_discount_amount = flt(tax.tax_amount_after_discount_amount + discount_amount_loss, precision("tax_amount", tax)); tax.total = flt(tax.total + discount_amount_loss, precision("total", tax)); }, calculate_totals: function() { // Changing sequence can cause roundiing issue and on-screen discrepency var me = this; var tax_count = this.frm.doc["taxes"] ? this.frm.doc["taxes"].length : 0; this.frm.doc.grand_total = flt(tax_count ? this.frm.doc["taxes"][tax_count - 1].total : this.frm.doc.net_total); if(in_list(["Quotation", "Sales Order", "Delivery Note", "Sales Invoice"], this.frm.doc.doctype)) { this.frm.doc.base_grand_total = (this.frm.doc.total_taxes_and_charges) ? flt(this.frm.doc.grand_total * this.frm.doc.conversion_rate) : this.frm.doc.base_net_total; } else { // other charges added/deducted this.frm.doc.taxes_and_charges_added = this.frm.doc.taxes_and_charges_deducted = 0.0; if(tax_count) { $.each(this.frm.doc["taxes"] || [], function(i, tax) { if (in_list(["Valuation and Total", "Total"], tax.category)) { if(tax.add_deduct_tax == "Add") { me.frm.doc.taxes_and_charges_added += flt(tax.tax_amount); } else { me.frm.doc.taxes_and_charges_deducted += flt(tax.tax_amount); } } }) frappe.model.round_floats_in(this.frm.doc, ["taxes_and_charges_added", "taxes_and_charges_deducted"]); } this.frm.doc.base_grand_total = flt((this.frm.doc.taxes_and_charges_added || this.frm.doc.taxes_and_charges_deducted) ? flt(this.frm.doc.grand_total * this.frm.doc.conversion_rate) : this.frm.doc.base_net_total); this.set_in_company_currency(this.frm.doc, ["taxes_and_charges_added", "taxes_and_charges_deducted"]); } this.frm.doc.total_taxes_and_charges = flt(this.frm.doc.grand_total - this.frm.doc.net_total, precision("total_taxes_and_charges")); this.set_in_company_currency(this.frm.doc, ["total_taxes_and_charges"]); // Round grand total as per precision frappe.model.round_floats_in(this.frm.doc, ["grand_total", "base_grand_total"]); // rounded totals if(frappe.meta.get_docfield(this.frm.doc.doctype, "rounded_total", this.frm.doc.name)) { this.frm.doc.rounded_total = Math.round(this.frm.doc.grand_total); } if(frappe.meta.get_docfield(this.frm.doc.doctype, "base_rounded_total", this.frm.doc.name)) { this.frm.doc.base_rounded_total = Math.round(this.frm.doc.base_grand_total); } }, _cleanup: function() { this.frm.doc.base_in_words = this.frm.doc.in_words = ""; if(this.frm.doc["items"] && this.frm.doc["items"].length) { if(!frappe.meta.get_docfield(this.frm.doc["items"][0].doctype, "item_tax_amount", this.frm.doctype)) { $.each(this.frm.doc["items"] || [], function(i, item) { delete item["item_tax_amount"]; }); } } if(this.frm.doc["taxes"] && this.frm.doc["taxes"].length) { var temporary_fields = ["tax_amount_for_current_item", "grand_total_for_current_item", "tax_fraction_for_current_item", "grand_total_fraction_for_current_item"] if(!frappe.meta.get_docfield(this.frm.doc["taxes"][0].doctype, "tax_amount_after_discount_amount", this.frm.doctype)) { temporary_fields.push("tax_amount_after_discount_amount"); } $.each(this.frm.doc["taxes"] || [], function(i, tax) { $.each(temporary_fields, function(i, fieldname) { delete tax[fieldname]; }); tax.item_wise_tax_detail = JSON.stringify(tax.item_wise_tax_detail); }); } }, apply_discount_amount: function() { var me = this; var distributed_amount = 0.0; if (this.frm.doc.discount_amount) { if(!this.frm.doc.apply_discount_on) frappe.throw(__("Please select Apply Discount On")); this.frm.set_value("base_discount_amount", flt(this.frm.doc.discount_amount * this.frm.doc.conversion_rate, precision("base_discount_amount"))) var total_for_discount_amount = this.get_total_for_discount_amount(); // calculate item amount after Discount Amount if (total_for_discount_amount) { $.each(this.frm.doc["items"] || [], function(i, item) { distributed_amount = flt(me.frm.doc.discount_amount) * item.net_amount / total_for_discount_amount; item.net_amount = flt(item.net_amount - distributed_amount, precision("base_amount", item)); item.net_rate = flt(item.net_amount / item.qty, precision("net_rate", item)); me.set_in_company_currency(item, ["net_rate", "net_amount"]); }); this.discount_amount_applied = true; this._calculate_taxes_and_totals(); } } else { this.frm.set_value("base_discount_amount", 0); } }, get_total_for_discount_amount: function() { var me = this; if(this.frm.doc.apply_discount_on == "Net Total") { return this.frm.doc.net_total } else { var total_actual_tax = 0.0; var actual_taxes_dict = {}; $.each(this.frm.doc["taxes"] || [], function(i, tax) { if (tax.charge_type == "Actual") actual_taxes_dict[tax.idx] = tax.tax_amount; else if (actual_taxes_dict[tax.row_id] !== null) { actual_tax_amount = flt(actual_taxes_dict[tax.row_id]) * flt(tax.rate) / 100; actual_taxes_dict[tax.idx] = actual_tax_amount; } }); $.each(actual_taxes_dict, function(key, value) { if (value) total_actual_tax += value; }); return flt(this.frm.doc.grand_total - total_actual_tax, precision("grand_total")); } }, calculate_total_advance: function(update_paid_amount) { var total_allocated_amount = frappe.utils.sum($.map(this.frm.doc["advances"] || [], function(adv) { return flt(adv.allocated_amount, precision("allocated_amount", adv)) })); this.frm.doc.total_advance = flt(total_allocated_amount, precision("total_advance")); this.calculate_outstanding_amount(update_paid_amount); } })