<template>
  <starBackground></starBackground>
  <div class="login">
    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">{{ defaultSettings.title }}</h3>

      <LangSelect title="多语言设置" class="langSet" />
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" size="large" auto-complete="off" :placeholder="$t('login.account')">
          <template #prefix>
            <svg-icon name="user" class="el-input__icon input-icon" />
          </template>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          size="large"
          auto-complete="off"
          :placeholder="$t('login.password')"
          @keyup.enter="handleLogin">
          <template #prefix>
            <svg-icon name="password" class="el-input__icon input-icon" />
          </template>
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaOnOff != 'off'">
        <el-input
          v-model="loginForm.code"
          size="large"
          auto-complete="off"
          :placeholder="$t('login.captcha')"
          style="width: 63%"
          @keyup.enter="handleLogin">
          <template #prefix>
            <svg-icon name="validCode" class="el-input__icon input-icon" />
          </template>
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img" />
        </div>
      </el-form-item>
      <el-form-item>
        <el-checkbox v-model="loginForm.rememberMe">{{ $t('login.rememberMe') }}</el-checkbox>
      </el-form-item>
      <el-form-item style="width: 100%">
        <el-button :loading="loading" size="large" type="primary" style="width: 100%" @click.prevent="handleLogin">
          <span v-if="!loading">{{ $t('login.btnLogin') }}</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <!-- <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div> -->
      </el-form-item>
    </el-form>

    <!--  底部  -->
    <div class="el-login-footer">
      <div v-html="defaultSettings.copyright"></div>
    </div>
  </div>
</template>

<script setup name="login">
import { getCodeImg } from '@/api/login'
import Cookies from 'js-cookie'
import { encrypt, decrypt } from '@/utils/jsencrypt'
import defaultSettings from '@/settings'
import starBackground from '@/views/components/starBackground.vue'
import LangSelect from '@/components/LangSelect/index.vue'

const store = useStore()
const router = useRouter()
const { proxy } = getCurrentInstance()

const loginForm = ref({
  username: '',
  password: '',
  rememberMe: false,
  code: '',
  uuid: '',
})

const loginRules = {
  username: [{ required: true, trigger: 'blur', message: '请输入您的账号' }],
  password: [{ required: true, trigger: 'blur', message: '请输入您的密码' }],
  code: [{ required: true, trigger: 'change', message: '请输入验证码' }],
}

const codeUrl = ref('')
const loading = ref(false)
// 验证码开关
const captchaOnOff = ref('')
// 注册开关
const register = ref(false)
const redirect = ref(undefined)

proxy.getConfigKey('sys.account.captchaOnOff').then((response) => {
  captchaOnOff.value = response.data
})

function handleLogin() {
  proxy.$refs.loginRef.validate((valid) => {
    if (valid) {
      loading.value = true
      // 勾选了需要记住密码设置在cookie中设置记住用户明和名命
      if (loginForm.value.rememberMe) {
        Cookies.set('username', loginForm.value.username, { expires: 30 })
        Cookies.set('password', encrypt(loginForm.value.password), {
          expires: 30,
        })
        Cookies.set('rememberMe', loginForm.value.rememberMe, { expires: 30 })
      } else {
        // 否则移除
        Cookies.remove('username')
        Cookies.remove('password')
        Cookies.remove('rememberMe')
      }
      // 调用action的登录方法
      store
        .dispatch('Login', loginForm.value)
        .then(() => {
          proxy.$modal.msgSuccess(proxy.$t('login.loginSuccess'))
          router.push({ path: redirect.value || '/' })
        })
        .catch((error) => {
          console.error(error)
          proxy.$modal.msgError(error.msg)
          loading.value = false
          // 重新获取验证码
          if (captchaOnOff.value) {
            getCode()
          }
        })
    }
  })
}

function getCode() {
  getCodeImg().then((res) => {
    codeUrl.value = 'data:image/gif;base64,' + res.data.img
    loginForm.value.uuid = res.data.uuid
  })
}

function getCookie() {
  const username = Cookies.get('username')
  const password = Cookies.get('password')
  const rememberMe = Cookies.get('rememberMe')
  loginForm.value = {
    username: username === undefined ? loginForm.value.username : username,
    password: password === undefined ? loginForm.value.password : decrypt(password),
    rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
  }
}
getCode()
getCookie()
</script>

<style lang="scss" scoped>
.login {
  background: radial-gradient(200% 100% at bottom center, #f7f7b6, #e96f92, #1b2947);
  background: radial-gradient(220% 105% at top center, #1b2947 10%, #75517d 40%, #e96f92 65%, #f7f7b6);
  background-attachment: fixed;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  // background-image: url('../assets/images/login-background.jpg');
  background-size: cover;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #fff;
}

.login-form {
  border-radius: 6px;
  // background: #ffffff;
  background-color: hsla(0, 0%, 100%, 0.3);
  width: 310px;
  padding: 25px 15px 5px 15px;
  position: relative;

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 40px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 40px;
  padding-left: 12px;
}
.langSet {
  position: absolute;
  right: 20px;
  top: 10px;
}
</style>
