Method t

src/i18n.ts:35–58

* Translate a key with optional interpolation * @param key - Translation key * @param values - Values for interpolation (optional) * @returns Translated string with interpolated values

(key: TranslationKey, values?: TranslationValues)

   * @returns Translated string with interpolated values
   */
  t(key: TranslationKey, values?: TranslationValues): string {
    const translation =
      this.translations[this.currentLocale][
        key as keyof (typeof this.translations)[typeof this.currentLocale]
      ];

    if (!translation) {
      // Fallback to the other locale if key not found
      const fallbackLocale = this.currentLocale === 'zh' ? 'en' : 'zh';
      const fallbackTranslation =
        this.translations[fallbackLocale][
          key as keyof (typeof this.translations)[typeof fallbackLocale]
        ];

      if (!fallbackTranslation) {
        // If still not found, return the key itself
        return String(key);
      }

      return this.interpolate(fallbackTranslation, values);
    }

    return this.interpolate(translation, values);
  }

  /**
   * Interpolate values into a string template