import nodemailer from 'nodemailer'
import config from './config/index.js'
import * as log4js from './log4js.js'

const transporter = nodemailer.createTransport({
  host: config.mail.host,
  port: config.mail.port,
  secure: config.mail.secure,
  auth: {
    user: config.mail.from,
    pass: config.mail.password,
  },
})

/**
 * 发送验证码邮件
 * @param {string} to 收件人邮箱
 * @param {string} account 游戏账号
 * @param {string} code 验证码
 * @param {number} type 1=注册 2=找回密码
 */
export async function sendCodeMail(to, account, code, type) {
  const typeNames = { 1: '注册', 2: '找回密码' }
  const typeName = typeNames[type] || '验证'
  const subject = `【${config.game.name}】${typeName}`
  const html = `
    <div style="background:#000;padding:50px;min-height:300px;">
      <div style="background:rgba(0,0,0,.7);border-radius:6px;color:#fff;padding:25px;max-width:450px;">
        <h3>${subject}</h3>
        <p>您的${config.account.name}${config.account.nameSuffix}：<strong>${account}</strong></p>
        <p>您的验证码：<span style="font-weight:700;font-size:18px;text-decoration:underline;color:#f5bd10;">${code}</span></p>
        <p style="color:#aaa;">用于${typeName}验证，5分钟内有效。</p>
        <hr style="border-color:#333;"/>
        <p style="font-size:12px;color:#666;">${config.game.name} &nbsp;·&nbsp; ${config.game.description}</p>
      </div>
    </div>
  `
  try {
    await transporter.sendMail({
      from: `"${config.game.name}" <${config.mail.from}>`,
      to,
      subject,
      html,
    })
    log4js.koa.info(`验证码邮件发送成功 -> ${to}`)
    return true
  } catch (err) {
    log4js.koa.error(`验证码邮件发送失败 -> ${to}`, err.message)
    return false
  }
}