39 lines
1.5 KiB
TypeScript
39 lines
1.5 KiB
TypeScript
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/*
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DrCr: Web-based double-entry bookkeeping framework
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Copyright (C) 2022–2024 Lee Yingtong Li (RunasSudo)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import { db } from './db.ts';
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export function asCost(quantity: number, commodity: string): number {
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// Convert the amount to cost price in the reporting commodity
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if (commodity === db.metadata.reporting_commodity) {
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return quantity;
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}
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if (commodity.indexOf('{{') >= 0) {
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// Total price
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const price = parseFloat(commodity.substring(commodity.indexOf('{{') + 2, commodity.indexOf('}}', commodity.indexOf('{{'))));
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return Math.round(price * Math.pow(10, db.metadata.dps));
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}
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if (commodity.indexOf('{') >= 0) {
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// Unit price
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const price = parseFloat(commodity.substring(commodity.indexOf('{') + 1, commodity.indexOf('}', commodity.indexOf('{'))));
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return Math.round(quantity * price);
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}
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throw new Error('No cost base specified: ' + quantity + ' ' + commodity);
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}
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