feat: add package i18n

Signed-off-by: MiaoWoo <admin@yumc.pw>

packages/i18n/src/index.ts

@@ -0,0 +1,42 @@
+import '@ms/ployfill'
+import * as yaml from 'js-yaml'
+
+import * as fs from '@ms/common/dist/fs'
+
+let langMap = {};
+let fallbackMap = {};
+
+type TranslateParam = { [key: string]: any }
+
+function translate(name: string, param?: TranslateParam) {
+    let langText: string = langMap[name] || fallbackMap[name];
+    if (!langText) { return '[WARN] @ms/i18n miss lang translate: ' + name }
+    for (const key in param) {
+        langText = langText.replace("{" + key + "}", param[key])
+    }
+    return langText;
+}
+
+function initialize(lang: string = 'zh_cn', fallback: string = 'zh_cn') {
+    langMap = readYamlFile(root, lang) || readYamlFile(fs.concat(__dirname, '..'), lang)
+    fallbackMap = readYamlFile(root, fallback) || readYamlFile(fs.concat(__dirname, '..'), fallback)
+    console.i18n = function i18n(name: string, param?: TranslateParam) {
+        console.log(translate(name, param))
+    }
+}
+
+function readYamlFile(dir: string, name: string) {
+    let langFile = fs.concat(dir, 'languages', name + '.yml');
+    return fs.exists(langFile) && yaml.safeLoad(base.read(langFile))
+}
+
+declare global {
+    interface Console {
+        i18n(name: string, param?: TranslateParam);
+    }
+}
+
+export default {
+    initialize,
+    translate
+};