63 lines
1.5 KiB
JavaScript
63 lines
1.5 KiB
JavaScript
/**
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* Languages Loader
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*/
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import * as fs from 'node:fs';
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import * as yaml from 'js-yaml';
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const merge = (...args) => args.reduce((a, c) => ({
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...a,
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...c,
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...Object.entries(a)
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.filter(([k]) => c && typeof c[k] === 'object')
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.reduce((a, [k, v]) => (a[k] = merge(v, c[k]), a), {})
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}), {});
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const languages = [
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'en-US',
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'ja-JP',
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'ko-KR',
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];
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const primaries = {
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'en': 'US',
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'ja': 'JP',
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};
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// 何故か文字列にバックスペース文字が混入することがあり、YAMLが壊れるので取り除く
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const clean = (text) => text.replace(new RegExp(String.fromCodePoint(0x08), 'g'), '');
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export function build() {
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const locales = languages.reduce((a, c) => (a[c] = yaml.load(clean(fs.readFileSync(new URL(`${c}.yml`, import.meta.url), 'utf-8'))) || {}, a), {});
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// 空文字列が入ることがあり、フォールバックが動作しなくなるのでプロパティごと消す
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const removeEmpty = (obj) => {
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for (const [k, v] of Object.entries(obj)) {
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if (v === '') {
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delete obj[k];
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} else if (typeof v === 'object') {
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removeEmpty(v);
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}
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}
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return obj;
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};
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removeEmpty(locales);
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return Object.entries(locales)
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.reduce((a, [k, v]) => (a[k] = (() => {
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const [lang] = k.split('-');
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switch (k) {
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case 'ja-JP': return v;
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case 'en-US': return merge(locales['ja-JP'], v);
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default: return merge(
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locales['ja-JP'],
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locales['en-US'],
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locales[`${lang}-${primaries[lang]}`] ?? {},
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v
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);
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}
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})(), a), {});
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}
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export default build();
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