feat: i18n next

src-next/locale/index.ts

@@ -0,0 +1,25 @@
+import { ref } from 'vue';
+import { deepAssign } from '../../src/utils/deep-assign';
+import defaultMessages from './lang/zh-CN';
+
+type Messages = Record<string, Record<string, any>>;
+
+const lang = ref('zh-CN');
+const messages = ref<Messages>({
+  'zh-CN': defaultMessages,
+});
+
+export default {
+  messages() {
+    return messages.value[lang.value];
+  },
+
+  use(newLang: string, newMessages?: object) {
+    lang.value = newLang;
+    this.add({ [newLang]: newMessages });
+  },
+
+  add(newMessages = {}) {
+    deepAssign(messages.value, newMessages);
+  },
+};