var nodemailer;
try {
	nodemailer = require('nodemailer');	
} catch (err) {}
module.exports = {
	/**
	 * 发送邮箱验证码
	 * @url user/pub/sendEmailCode 前端调用的url参数地址
	 * @description 发送邮箱验证码
	 * data 请求参数 说明
	 * @param {String} email 邮箱
	 * @param {String} type  验证码类型
	 * res 返回参数说明
	 * @param {Number} code 错误码，0表示成功
	 * @param {String} msg 详细信息
	 * @param {String} email 手机号  
	 * @param {String} verifyCode 验证码
	 */
	main: async (event) => {
		let { data = {}, util } = event;
		let { uniID, config } = util;
		let { email, type } = data;
		let res = {code : -1, msg : ''};
		// 业务逻辑开始----------------------------------------------------------- 
		const randomStr = '00000' + Math.floor(Math.random() * 1000000);
		let code = randomStr.substring(randomStr.length - 6);
		let param = {
			code,
			type,
			email
		};
		// 发送验证码开始
		var emailConfig = config.vk.service.email;
		if(typeof nodemailer === "undefined"){
			return { code : -1, msg : '请先安装npm包"nodemailer": "^6.4.11"' };
		}
		let emailService = nodemailer.createTransport({
			"host": emailConfig[data.serviceType].host,
			"port": emailConfig[data.serviceType].port,
			"secure": emailConfig[data.serviceType].secure, // use SSL
			"auth": emailConfig[data.serviceType].auth
		});
		try{
			await emailService.sendMail({
				"from": emailConfig[data.serviceType].auth.user,
				"to": data.email,
				"subject": data.subject,
				"text": `您的验证码是${code},打死也不要告诉别人哦!`
			});
			res.code = 0;
			res.msg = "ok";
		}
		catch(err){
			res.code = -1;
			res.msg = "邮件发送失败";
			res.err = err;
		}
		// 发送验证码结束
		if(res.code === 0){
			// 发送验证码成功后,设置验证码
			await uniID.setVerifyCode(param);
		}
		// 业务逻辑结束-----------------------------------------------------------
		return res;
	}
}