import idCarInfo from "../../utils/idCardInfo"
/**
 * 判断是否为身份证
 * @param str 字符串
 * @returns 是否为身份证
 * @see {@link https://yourhhh.github.io/zztoolDocument} API 文档
 * @example
 * // 调用示例
 * regIdcard('3301031110DF001011234'); // false
 */
export function regIdcard(str: string) {
  if (!/^\d{17}(\d|X)$/i.test(str)) return false;

  const provinceCodes = new Set(idCarInfo.code);
  
  if (!provinceCodes.has(str.substring(0, 2))) return false;
  
  const year = parseInt(str.substring(6, 10), 10),
   month = parseInt(str.substring(10, 12), 10),
   day = parseInt(str.substring(12, 14), 10),
   birthDate = new Date(year, month - 1, day);
  if (
    birthDate.getFullYear() !== year ||
    birthDate.getMonth() + 1 !== month ||
    birthDate.getDate() !== day
  ) {
    return false;
  }
  const weights = idCarInfo.weights;
  const checkCodes = idCarInfo.checkCodes;
  let sum = 0;
  for (let i = 0; i < 17; i++) {
    sum += Number(str[i]) * weights[i];
  }
  const calculatedCheckCode = checkCodes[sum % 11];
  if (str[17].toUpperCase() !== calculatedCheckCode) {
    return false;
  }

  return true;
}