108 lines
2.9 KiB
JavaScript
108 lines
2.9 KiB
JavaScript
const fs = require("fs");
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const translationDir = "lemmy-translations/translations/";
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const outDir = "src/shared/translations/";
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fs.mkdirSync(outDir, { recursive: true });
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fs.readdir(translationDir, (_err, files) => {
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files.forEach(filename => {
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const lang = filename.split(".")[0];
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try {
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const json = JSON.parse(
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fs.readFileSync(translationDir + filename, "utf8")
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);
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let data = `export const ${lang} = {\n translation: {`;
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for (const key in json) {
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if (key in json) {
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const value = json[key].replace(/"/g, '\\"');
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data += `\n ${key}: "${value}",`;
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}
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}
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data += "\n },\n};";
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const target = outDir + lang + ".ts";
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fs.writeFileSync(target, data);
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} catch (err) {
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console.error(err);
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}
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});
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});
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// generate types for i18n keys
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const baseLanguage = "en";
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fs.readFile(`${translationDir}${baseLanguage}.json`, "utf8", (_, fileStr) => {
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const noOptionKeys = [];
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const optionKeys = [];
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const optionRegex = /\{\{(.+?)\}\}/g;
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const optionMap = new Map();
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for (const [key, val] of Object.entries(JSON.parse(fileStr))) {
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const options = [];
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for (
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let match = optionRegex.exec(val);
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match;
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match = optionRegex.exec(val)
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) {
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options.push(match[1]);
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}
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if (options.length > 0) {
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optionMap.set(key, options);
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optionKeys.push(key);
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} else {
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noOptionKeys.push(key);
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}
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}
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const indent = " ";
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const data = `import { i18n } from "i18next";
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declare module "i18next" {
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export type NoOptionI18nKeys =
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${noOptionKeys.map(key => `${indent}| "${key}"`).join("\n")};
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export type OptionI18nKeys =
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${optionKeys.map(key => `${indent}| "${key}"`).join("\n")};
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export type I18nKeys = NoOptionI18nKeys | OptionI18nKeys;
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export type TTypedOptions<TKey extends OptionI18nKeys> =${Array.from(
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optionMap.entries()
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).reduce(
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(acc, [key, options]) =>
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`${acc} TKey extends \"${key}\" ? ${
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options.reduce((acc, cur) => acc + `${cur}: string | number; `, "{ ") +
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"}"
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} :\n${indent}`,
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""
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)} (Record<string, unknown> | string);
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export interface TFunctionTyped {
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// Translation requires options
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<
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TKey extends OptionI18nKeys | OptionI18nKeys[],
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TResult extends TFunctionResult = string,
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TInterpolationMap extends TTypedOptions<TKey> = StringMap
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> (
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key: TKey,
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options: TOptions<TInterpolationMap> | string
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): TResult;
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// Translation does not require options
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<
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TResult extends TFunctionResult = string,
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TInterpolationMap extends Record<string, unknown> = StringMap
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> (
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key: NoOptionI18nKeys | NoOptionI18nKeys[],
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options?: TOptions<TInterpolationMap> | string
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): TResult;
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}
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export interface i18nTyped extends i18n {
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t: TFunctionTyped;
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}
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}
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`;
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fs.writeFileSync(`${outDir}i18next.d.ts`, data);
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});
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