export const LOCALE = {
  ZH: 'zh_CN',
  EN: 'en_US',
} as const;

export const CATEGORY = {
  GENERAL: 'General',
  NAVIGATION: 'Navigation',
  LAYOUT: 'Layout',
  DATA_ENTRY: 'Data Entry',
  DATA_DISPLAY: 'Data Display',
  FEEDBACK: 'Feedback',
  OTHER: 'Other',
} as const;

export const GROUP = {
  BASIC: 'Basic',
} as const;

/** Maps legacy Chinese category/group labels to English keys. */
export const CATEGORY_FROM_ZH: Record<string, string> = {
  通用: CATEGORY.GENERAL,
  基础: CATEGORY.GENERAL,
  导航: CATEGORY.NAVIGATION,
  布局: CATEGORY.LAYOUT,
  表单: CATEGORY.DATA_ENTRY,
  信息输入: CATEGORY.DATA_ENTRY,
  数据展示: CATEGORY.DATA_DISPLAY,
  信息展示: CATEGORY.DATA_DISPLAY,
  反馈: CATEGORY.FEEDBACK,
  信息反馈: CATEGORY.FEEDBACK,
  其他: CATEGORY.OTHER,
  基础组件: GROUP.BASIC,
};

export type I18nText = {
  type: 'i18n';
  zh_CN: string;
  en_US: string;
};

export function i18n(zh: string, en: string): I18nText {
  return {
    type: 'i18n',
    zh_CN: zh,
    en_US: en,
  };
}

export function fieldTitle(
  zhLabel: string,
  enLabel: string,
  zhTip?: string,
  enTip?: string,
): { label: I18nText; tip?: I18nText } {
  return {
    label: i18n(zhLabel, enLabel),
    ...(zhTip != null
      ? { tip: i18n(zhTip, enTip ?? zhTip) }
      : {}),
  };
}