// 验证工具
export const validationUtils = {
  // 验证邮箱格式
  isEmail: (email: string): boolean => {
    const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
    return emailRegex.test(email);
  },

  // 验证手机号格式（中国大陆）
  isPhoneNumber: (phone: string): boolean => {
    const phoneRegex = /^1[3-9]\d{9}$/;
    return phoneRegex.test(phone);
  },

  // 验证身份证号格式（中国大陆）
  isIdCard: (idCard: string): boolean => {
    const idCardRegex = /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/;
    return idCardRegex.test(idCard);
  },

  // 验证密码强度
  isStrongPassword: (password: string): boolean => {
    // 至少8位，包含大小写字母、数字和特殊字符
    const strongPasswordRegex = /^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$/;
    return strongPasswordRegex.test(password);
  },

  // 验证是否为空
  isEmpty: (value: unknown): boolean => {
    if (value === null || value === undefined) {
      return true;
    }

    if (typeof value === 'string') {
      return value.trim() === '';
    }

    if (Array.isArray(value)) {
      return value.length === 0;
    }

    if (typeof value === 'object') {
      return Object.keys(value as Record<string, unknown>).length === 0;
    }

    return false;
  },

  // 验证数字范围
  isInRange: (value: number, min: number, max: number): boolean => {
    return value >= min && value <= max;
  },

  // 验证字符串长度
  isLengthValid: (str: string, minLength: number, maxLength?: number): boolean => {
    const length = str.length;
    if (length < minLength) return false;
    if (maxLength && length > maxLength) return false;
    return true;
  },

  // 验证是否为数字
  isNumber: (value: unknown): value is number => {
    return typeof value === 'number' && !isNaN(value);
  },

  // 验证是否为整数
  isInteger: (value: unknown): value is number => {
    return validationUtils.isNumber(value) && Number.isInteger(value);
  },

  // 验证是否为正数
  isPositive: (value: number): boolean => {
    return value > 0;
  },

  // 验证是否为负数
  isNegative: (value: number): boolean => {
    return value < 0;
  },

  // 验证是否为偶数
  isEven: (value: number): boolean => {
    return value % 2 === 0;
  },

  // 验证是否为奇数
  isOdd: (value: number): boolean => {
    return value % 2 !== 0;
  },

  // 验证是否为闰年
  isLeapYear: (year: number): boolean => {
    return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
  },

  // 验证日期是否有效
  isValidDate: (date: Date | string): boolean => {
    const d = new Date(date);

    // 检查日期是否有效
    if (isNaN(d.getTime())) {
      return false;
    }

    return true;
  }
};