102 lines
2.9 KiB
JavaScript
102 lines
2.9 KiB
JavaScript
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// # {{price}} helper
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//
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// Usage: `{{price 2100}}`
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// Usage: `{{price plan}}`
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// Usage: `{{price plan numberFormat="long"}}`
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// Usage: `{{price plan currencyFormat="code"}}`
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// Usage: `{{price plan currencyFormat="name"}}`
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// Usage: `{{price 500 currency="USD"}}`
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// Usage: `{{price currency="USD"}}`
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//
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// Returns amount equal to the dominant denomination of the currency.
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// For example, if 2100 is passed, it will return 21.
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const tpl = require('@tryghost/tpl');
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const logging = require('@tryghost/logging');
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const _ = require('lodash');
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const messages = {
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attrIsRequired: 'Attribute is required e.g. {{price plan.amount}}',
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attrMustBeNumeric: 'Attribute value should be a number'
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};
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function formatter({amount, currency, numberFormat = 'short', currencyFormat = 'symbol', locale}) {
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const formatterOptions = {
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style: 'currency',
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currency: currency,
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currencyDisplay: currencyFormat
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};
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if (numberFormat === 'short') {
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formatterOptions.minimumFractionDigits = 0;
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}
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if (_.isNumber(amount)) {
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return new Intl.NumberFormat(locale, formatterOptions).format(amount);
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} else {
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const val = new Intl.NumberFormat('en', {
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style: 'currency',
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currency,
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currencyDisplay: 'symbol',
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minimumFractionDigits: 0,
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maximumFractionDigits: 0
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}).format(0);
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return val.replace(/[\d\s.,]/g, '');
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}
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}
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module.exports = function price(planOrAmount, options) {
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let plan;
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let amount;
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if (arguments.length === 1) {
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options = planOrAmount;
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}
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if (arguments.length === 2) {
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if (_.isNumber(planOrAmount)) {
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amount = planOrAmount;
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} else if (_.isObject(planOrAmount)) {
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plan = planOrAmount;
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}
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}
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options = options || {};
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options.hash = options.hash || {};
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const {currency, numberFormat = 'short', currencyFormat = 'symbol', locale = _.get(options, 'data.site.locale', 'en')} = options.hash;
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if (plan) {
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return formatter({
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amount: plan.amount && (plan.amount / 100),
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currency: currency || plan.currency,
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currencyFormat,
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numberFormat,
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locale
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});
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}
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if (currency) {
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return formatter({
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amount: amount && (amount / 100),
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currency: currency,
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currencyFormat,
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numberFormat,
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locale
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});
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}
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// CASE: if no amount is passed, e.g. `{{price}}` we throw an error
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if (arguments.length < 2) {
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logging.warn(tpl(messages.attrIsRequired));
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return '';
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}
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// CASE: if amount is passed, but it is undefined we throw an error
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if (amount === undefined) {
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logging.warn(tpl(messages.attrIsRequired));
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return '';
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}
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if (!_.isNumber(amount)) {
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logging.warn(tpl(messages.attrMustBeNumeric));
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return '';
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}
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return amount / 100;
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};
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