// 手机号验证
const isValidPhone = (phone) => {
    // 手机号码正则
    const mobilePattern = /^1[3-9]\d{9}$/;
    // 固定电话正则
    const landlinePattern = /^(0\d{2,3})[- ]?\d{7,8}$/;
    if (mobilePattern.test(phone)) {
        return true
    } else if (landlinePattern.test(phone)) {
        return true
    } else {
        return false
    }
};

// 邮箱验证
const isValidEmail = (email) => {
    return /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/.test(email);
};

// URL验证
const isValidUrl = (url) => {
    try {
        new URL(url);
        return true;
    } catch {
        return false;
    }
};

// 身份证号验证
const isValidIdCard = (idCard) => {
    return /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/.test(idCard);
};

// 企业统一社会信用代码验证
const isValidCreditCode = (creditCode) => {
    return /^[0-9A-HJ-NPQRTUWXY]{2}\d{6}[0-9A-HJ-NPQRTUWXY]{10}$/.test(creditCode);
};
const objIsEmpty = (obj) => {
    if (obj === undefined) {
        return true;
    }
    if (obj === null) {
        return true;
    }
    return Object.keys(obj).length === 0;
}
// 密码强度验证（至少包含数字和字母，长度8-20位）
const isValidPassword = (password) => {
    return /^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{8,20}$/.test(password);
};

module.exports = {
    isValidPhone,
    isValidEmail,
    isValidUrl,
    isValidIdCard,
    isValidCreditCode,
    isValidPassword,
    objIsEmpty
};