/**
 * 体检操作记录工具函数
 * 使用格式：yh_exam_actions_${today}_${examId}
 * 存储内容：{ idCardSignIn: boolean, consentSign: boolean, printSign: boolean, timestamp: string }
 */

/**
 * 获取今天的日期字符串（YYYY-MM-DD）
 */
export const getTodayString = (): string => {
  const today = new Date();
  const year = today.getFullYear();
  const month = String(today.getMonth() + 1).padStart(2, '0');
  const day = String(today.getDate()).padStart(2, '0');
  return `${year}-${month}-${day}`;
};

/**
 * 获取操作记录的存储 key
 */
export const getExamActionKey = (examId: string | number): string => {
  const today = getTodayString();
  return `yh_exam_actions_${today}_${examId}`;
};

/**
 * 操作记录类型
 */
export interface ExamActionRecord {
  /** 身份证拍照与签到 */
  idCardSignIn?: boolean;
  /** 体检知情同意书的签字 */
  consentSign?: boolean;
  /** 打印导检单是否签名 */
  printSign?: boolean;
  /** 记录时间戳 */
  timestamp?: string;
}

/**
 * 获取操作记录
 */
export const getExamActionRecord = (examId: string | number): ExamActionRecord | null => {
  if (typeof window === 'undefined') return null;
  
  const key = getExamActionKey(examId);
  const raw = localStorage.getItem(key);
  if (!raw) return null;
  
  try {
    const parsed = JSON.parse(raw);
    return parsed as ExamActionRecord;
  } catch (err) {
    console.warn('操作记录解析失败', err);
    return null;
  }
};

/**
 * 设置操作记录
 */
export const setExamActionRecord = (
  examId: string | number,
  action: keyof ExamActionRecord,
  value: boolean = true
): void => {
  if (typeof window === 'undefined') return;
  
  const key = getExamActionKey(examId);
  const existing = getExamActionRecord(examId) || {};
  
  const updated: ExamActionRecord = {
    ...existing,
    [action]: value,
    timestamp: new Date().toISOString(),
  };
  
  localStorage.setItem(key, JSON.stringify(updated));
};

/**
 * 检查操作是否已完成
 */
export const isExamActionDone = (examId: string | number, action: keyof ExamActionRecord): boolean => {
  const record = getExamActionRecord(examId);
  return record?.[action] === true;
};

/**
 * 知情同意书PDF信息
 */
export interface TongyishuPdfInfo {
  /** PDF文件名称 */
  pdf_name: string;
  /** PDF文件地址 */
  pdf_url: string;
  /** 组合代码 */
  combination_code?: number | null;
}

/**
 * 获取知情同意书PDF列表的存储 key
 */
export const getTongyishuPdfListKey = (examId: string | number): string => {
  const today = getTodayString();
  return `yh_tongyishu_pdf_list_${today}_${examId}`;
};

/**
 * 存储知情同意书PDF列表
 */
export const setTongyishuPdfList = (
  examId: string | number,
  pdfList: TongyishuPdfInfo[]
): void => {
  if (typeof window === 'undefined') return;
  
  const key = getTongyishuPdfListKey(examId);
  localStorage.setItem(key, JSON.stringify(pdfList));
};

/**
 * 获取知情同意书PDF列表
 */
export const getTongyishuPdfList = (examId: string | number): TongyishuPdfInfo[] | null => {
  if (typeof window === 'undefined') return null;
  
  const key = getTongyishuPdfListKey(examId);
  const raw = localStorage.getItem(key);
  if (!raw) return null;
  
  try {
    const parsed = JSON.parse(raw);
    return Array.isArray(parsed) ? parsed as TongyishuPdfInfo[] : null;
  } catch (err) {
    console.warn('知情同意书PDF列表解析失败', err);
    return null;
  }
};

/**
 * 导检单PDF信息
 */
export interface DaojiandanPdfInfo {
  /** PDF文件名称 */
  pdf_name: string;
  /** PDF文件地址 */
  pdf_url: string;
}

/**
 * 获取导检单PDF的存储 key
 */
export const getDaojiandanPdfKey = (examId: string | number): string => {
  const today = getTodayString();
  return `yh_daojiandan_pdf_${today}_${examId}`;
};

/**
 * 存储导检单PDF信息
 */
export const setDaojiandanPdf = (
  examId: string | number,
  pdfInfo: DaojiandanPdfInfo
): void => {
  if (typeof window === 'undefined') return;
  
  const key = getDaojiandanPdfKey(examId);
  localStorage.setItem(key, JSON.stringify(pdfInfo));
};

/**
 * 获取导检单PDF信息
 */
export const getDaojiandanPdf = (examId: string | number): DaojiandanPdfInfo | null => {
  if (typeof window === 'undefined') return null;
  
  const key = getDaojiandanPdfKey(examId);
  const raw = localStorage.getItem(key);
  if (!raw) return null;
  
  try {
    const parsed = JSON.parse(raw);
    return parsed as DaojiandanPdfInfo;
  } catch (err) {
    console.warn('导检单PDF信息解析失败', err);
    return null;
  }
};