package nju.seec.helper.service.impl;

import nju.seec.helper.service.CodeService;
import nju.seec.helper.util.Consts;
import nju.seec.helper.util.MailUtils;
import nju.seec.helper.util.RedisCacheUtils;
import nju.seec.helper.util.SmsUtils;
import org.springframework.stereotype.Service;

import java.util.Random;
import java.util.concurrent.TimeUnit;

/**
 * @author cst
 */
@Service
public class CodeServiceImpl implements CodeService {
    private static final int MAIL_CODE_LIVING_MINUTES = 5;
    private static final int PHONE_CODE_LIVING_MINUTES = 5;

    private final MailUtils mailUtils;
    private final SmsUtils smsUtils;
    private final RedisCacheUtils cacheUtils;

    public CodeServiceImpl(MailUtils mailUtils, SmsUtils smsUtils, RedisCacheUtils cacheUtils) {
        this.mailUtils = mailUtils;
        this.smsUtils = smsUtils;
        this.cacheUtils = cacheUtils;
    }

    @Override
    public void sendEmailCode(String email) {
        String code = getSixBitsCode();
        mailUtils.sendSimpleMailMessage(String.format("您的验证码：%s，%d分钟内有效，请勿泄漏于他人！", code, MAIL_CODE_LIVING_MINUTES), email);
        cacheUtils.set(Consts.EMAIL_CACHE_NAME, email, code, MAIL_CODE_LIVING_MINUTES, TimeUnit.MINUTES);
    }

    private String getSixBitsCode() {
        return String.valueOf(new Random().nextInt(900000) + 100000);
    }

    @Override
    public void sendPhoneCode(String phone) {
        String code = getSixBitsCode();
        smsUtils.sendSmsCode(phone, code);
        cacheUtils.set(Consts.PHONE_CACHE_NAME, phone, code, PHONE_CODE_LIVING_MINUTES, TimeUnit.MINUTES);
    }
}