1 files changed, 44 insertions, 0 deletions
diff --git a/src/client/scripts/i18n.ts b/src/client/scripts/i18n.ts
new file mode 100644
index 0000000000..d535e236bb
--- /dev/null
+++ b/src/client/scripts/i18n.ts
@@ -0,0 +1,44 @@
+// Notice: Service Workerでも使用します
+export class I18n<T extends Record<string, any>> {
+	public locale: T;
+
+	constructor(locale: T) {
+		this.locale = locale;
+
+		if (_DEV_) {
+			console.log('i18n', this.locale);
+		}
+
+		//#region BIND
+		this.t = this.t.bind(this);
+		//#endregion
+	}
+
+	// string にしているのは、ドット区切りでのパス指定を許可するため
+	// なるべくこのメソッド使うよりもlocale直接参照の方がvueのキャッシュ効いてパフォーマンスが良いかも
+	public t(key: string, args?: Record<string, any>): string {
+		try {
+			let str = key.split('.').reduce((o, i) => o[i], this.locale) as string;
+
+			if (_DEV_) {
+				if (!str.includes('{')) {
+					console.warn(`i18n: '${key}' has no any arg. so ref prop directly instead of call this method.`);
+				}
+			}
+
+			if (args) {
+				for (const [k, v] of Object.entries(args)) {
+					str = str.replace(`{${k}}`, v);
+				}
+			}
+			return str;
+		} catch (e) {
+			if (_DEV_) {
+				console.warn(`missing localization '${key}'`);
+				return `⚠'${key}'⚠`;
+			}
+
+			return key;
+		}
+	}
+}