import axiosInstance from './interceptor';

// 获取多语言列表接口
export interface LanguageItem {
  language: string; // en, zh
  display: string; // English, 简体中文
}

export interface LanguageListResponse {
  code: string;
  data: LanguageItem[];
  description: string;
  solution: string;
}

// 修改系统语言接口
export interface ChangeLanguageRequest {
  lang: string; // en_US, zh_CN
}

export interface ChangeLanguageResponse {
  code: string;
  description: string;
  solution: string;
  data: Record<string, never>;
}

// 语言代码映射：简短代码 -> 完整代码
const languageMap: Record<string, string> = {
  en: 'en_US',
  zh: 'zh_CN',
};

/**
 * 将简短语言代码转换为完整语言代码
 * @param shortCode 简短代码 (en, zh)
 * @returns 完整代码 (en_US.UTF-8, zh_CN.UTF-8)
 */
export function mapLanguageCode(shortCode: string): string {
  return languageMap[shortCode] || shortCode;
}

/**
 * 获取多语言列表
 * @returns Promise<LanguageListResponse>
 */
export function getLanguageList(): Promise<{ data: LanguageListResponse }> {
  return axiosInstance.get('/pub/language');
}

/**
 * 修改系统语言
 * @param language 语言简短代码 (en, zh)
 * @returns Promise<ChangeLanguageResponse>
 */
export function changeLanguage(
  language: string
): Promise<{ data: ChangeLanguageResponse }> {
  const fullLanguageCode = mapLanguageCode(language);
  return axiosInstance.post('/auth/manage/language', {
    lang: fullLanguageCode,
  });
}