<template>
  <div class="main">
    <a-form
      id="formLogin"
      class="user-layout-login"
      ref="formLogin"
      :form="form"
      @submit="handleSubmit"
    >
      <a-tabs
        :activeKey="customActiveKey"
        :tabBarStyle="{ textAlign: 'center', borderBottom: 'unset',color:'white' }"
        @change="handleTabClick"
      >
        <a-tab-pane key="tab1" tab="账号密码登录">
          <a-alert v-if="isLoginError" type="error" showIcon style="margin-bottom: 24px;" message="账户或密码错误（admin/ant.design )" />
          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="请输入账户"
              v-decorator="[
                'username',
                {rules: [{ required: true, message: '请输入帐户名或邮箱地址' }, { validator: handleUsernameOrEmail }], validateTrigger: 'change'}
              ]"
            >
              <a-icon slot="prefix" type="user" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>

          <a-form-item>
            <a-input
              size="large"
              type="password"
              autocomplete="false"
              placeholder="请输入密码"
              v-decorator="[
                'password',
                {rules: [{ required: true, message: '请输入密码' }], validateTrigger: 'blur'}
              ]"
            >
              <a-icon slot="prefix" type="lock" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>
          <!--          <a-row :gutter="16" v-if="customActiveKey === 'tab1'">-->
          <!--            <a-col class="gutter-row" :span="16">-->
          <!--              <a-form-item>-->
          <!--                <a-input-->
          <!--                  size="large"-->
          <!--                  autocomplete="false"-->
          <!--                  placeholder="图片验证码"-->
          <!--                  v-decorator="[-->
          <!--                    'captchaCode',-->
          <!--                    {rules: [{ required: true, message: '图片验证码' }], validateTrigger: 'blur'}-->
          <!--                  ]"-->
          <!--                >-->
          <!--                  <a-icon slot="prefix" type="picture" :style="{ color: 'rgba(0,0,0,.25)' }"/>-->
          <!--                </a-input>-->
          <!--              </a-form-item>-->
          <!--            </a-col>-->
          <!--            <a-col class="gutter-row" :span="8">-->
          <!--              <img-->
          <!--                class="getCaptcha"-->
          <!--                :src="captchaImage"-->
          <!--                @click.stop.prevent="getCaptchaImage"-->
          <!--              />-->
          <!--            </a-col>-->
          <!--          </a-row>-->
        </a-tab-pane>
        <a-tab-pane key="tab2" tab="手机号登录">
          <a-form-item>
            <a-input size="large" type="text" placeholder="手机号" v-decorator="['mobile', {rules: [{ required: true, pattern: /^1[34578]\d{9}$/, message: '请输入正确的手机号' }], validateTrigger: 'change'}]">
              <a-icon slot="prefix" type="mobile" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>

          <a-row :gutter="16" v-if="customActiveKey === 'tab2'">
            <a-col class="gutter-row" :span="16">
              <a-form-item>
                <a-input
                  size="large"
                  autocomplete="false"
                  placeholder="图片验证码"
                  v-decorator="[
                    'captchaCode',
                    {rules: [{ required: true, message: '图片验证码' }], validateTrigger: 'blur'}
                  ]"
                >
                  <a-icon slot="prefix" type="picture" :style="{ color: 'rgba(0,0,0,.25)' }"/>
                </a-input>
              </a-form-item>
            </a-col>
            <a-col class="gutter-row" :span="8">
              <img
                class="getCaptcha"
                :src="captchaImage"
                @click.stop.prevent="getCaptchaImage"
              />
            </a-col>
          </a-row>
          <a-row :gutter="16">
            <a-col class="gutter-row" :span="16">
              <a-form-item>
                <a-input size="large" type="text" placeholder="短信验证码" v-decorator="['smsCode', {rules: [{ required: true, message: '请输入验证码' }], validateTrigger: 'blur'}]">
                  <a-icon slot="prefix" type="mail" :style="{ color: 'rgba(0,0,0,.25)' }"/>
                </a-input>
              </a-form-item>
            </a-col>
            <a-col class="gutter-row" :span="8">
              <a-button
                class="getCaptcha"
                tabindex="-1"
                :disabled="state.smsSendBtn"
                @click.stop.prevent="getCaptcha"
                v-text="!state.smsSendBtn && '获取验证码' || (state.time+' s')"
              ></a-button>
            </a-col>
          </a-row>
        </a-tab-pane>
      </a-tabs>

      <a-form-item>
        <!--        <a-checkbox v-decorator="['rememberMe']">自动登录</a-checkbox>-->
        <!--        <router-link-->
        <!--          :to="{ name: 'recover', params: { user: 'aaa'} }"-->
        <!--          class="forge-password"-->
        <!--          style="float: right;"-->
        <!--        >忘记密码</router-link>-->
      </a-form-item>

      <a-form-item style="margin-top:24px">
        <a-button
          size="large"
          type="primary"
          htmlType="submit"
          class="login-button"
          :loading="state.loginBtn"
          :disabled="state.loginBtn"
        >确定</a-button>
      </a-form-item>

    </a-form>

    <two-step-captcha
      v-if="requiredTwoStepCaptcha"
      :visible="stepCaptchaVisible"
      @success="stepCaptchaSuccess"
      @cancel="stepCaptchaCancel"
    ></two-step-captcha>
  </div>
</template>

<script>
import TwoStepCaptcha from '@/components/tools/TwoStepCaptcha'
import { mapActions } from 'vuex'
import { timeFix } from '@/utils/util'
import { getSmsCaptcha, checkCaptchaCode } from '@/api/upms/login'
import { encryptPassword } from '@/common/common'

export default {
  components: {
    TwoStepCaptcha
  },
  data () {
    return {
      customActiveKey: 'tab1',
      loginBtn: false,
      // login type: 0 email, 1 username, 2 telephone
      loginType: 0,
      randomStr: '',
      captchaImage: null,
      isLoginError: false,
      requiredTwoStepCaptcha: false,
      stepCaptchaVisible: false,
      form: this.$form.createForm(this),
      state: {
        time: 60,
        loginBtn: false,
        // login type: 0 email, 1 username, 2 telephone
        loginType: 0,
        smsSendBtn: false
      }
    }
  },
  created () {
    // get2step({ })
    //   .then(res => {
    //     this.requiredTwoStepCaptcha = res.result.stepCode
    //   })
    //   .catch(() => {
    //     this.requiredTwoStepCaptcha = false
    //   })
    // this.requiredTwoStepCaptcha = true
    this.getCaptchaImage()
  },
  methods: {
    ...mapActions(['Login', 'Logout']),
    // handler
    handleUsernameOrEmail (rule, value, callback) {
      const { state } = this
      const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/
      if (regex.test(value)) {
        state.loginType = 0
      } else {
        state.loginType = 1
      }
      callback()
    },
    handleTabClick (key) {
      this.customActiveKey = key
      // this.form.resetFields()
    },
    handleSubmit (e) {
      e.preventDefault()
      const {
        form: { validateFields },
        state,
        customActiveKey,
        Login
      } = this

      state.loginBtn = true

      const validateFieldsKey = customActiveKey === 'tab1' ? ['username', 'password', 'captchaCode'] : ['mobile', 'smsCode', 'captchaCode']
      validateFields(validateFieldsKey, { force: true }, (err, values) => {
        if (!err) {
          const loginParams = {
            ...values,
            randomStr: this.randomStr,
            password: values.password ? encryptPassword(values.password) : '',
            grant_type: 'password',
            scope: 'server',
            loginType: customActiveKey === 'tab1' ? 1 : 2
          }
          delete loginParams.username
          loginParams[!state.loginType ? 'email' : 'username'] = values.username
          // loginParams.password = md5(values.password)
          Login(loginParams)
            .then((res) => this.loginSuccess(res))
            .catch(err => console.log(err))
            .finally(() => {
              state.loginBtn = false
              this.getCaptchaImage()
            })
        } else {
          setTimeout(() => {
            state.loginBtn = false
          }, 600)
        }
      })
    },
    getCaptcha (e) {
      e.preventDefault()
      const { form: { validateFields }, state } = this

      validateFields(['mobile', 'captchaCode'], { force: true }, (err, values) => {
        if (!err) {
          checkCaptchaCode({ captchaCode: values.captchaCode, randomStr: this.randomStr }).then(res => {
            const flag = res.data
            if (flag) {
              state.smsSendBtn = true

              const interval = window.setInterval(() => {
                if (state.time-- <= 0) {
                  state.time = 60
                  state.smsSendBtn = false
                  window.clearInterval(interval)
                }
              }, 1000)

              const hide = this.$message.loading('验证码发送中..', 0)
              getSmsCaptcha({ mobile: values.mobile, captchaCode: values.captchaCode, randomStr: this.randomStr }).then(res => {
                setTimeout(hide, 2500)
                this.$notification['success']({
                  message: '提示',
                  description: '验证码获取成功，您的验证码为：' + res.data,
                  duration: 8
                })
              }).catch(err => {
                setTimeout(hide, 1)
                clearInterval(interval)
                state.time = 60
                state.smsSendBtn = false
                this.requestFailed(err)
              })
            } else {
              this.$message.error('图片验证码错误')
              this.getCaptchaImage()
            }
          })
        }
      })
    },
    stepCaptchaSuccess () {
      this.loginSuccess()
    },
    stepCaptchaCancel () {
      this.Logout().then(() => {
        this.loginBtn = false
        this.stepCaptchaVisible = false
      })
    },
    loginSuccess (res) {
      console.log(res)
      this.$router.push({ path: '/dashboard/workplace' })
      // 延迟 1 秒显示欢迎信息
      setTimeout(() => {
        this.$notification.success({
          message: '欢迎',
          description: `${timeFix()}，欢迎回来`
        })
      }, 1000)
      this.isLoginError = false
    },
    requestFailed (err) {
      console.log(err)
      this.isLoginError = true
      this.$notification['error']({
        message: '错误',
        description: ((err.response || {}).data || {}).message || '请求出现错误，请稍后再试',
        duration: 4
      })
    },
    getCaptchaImage () {
      this.randomStr = this.getRandomStr()
      // this.captchaImage = location.protocol + '//' + location.host + '/api/verify/captcha/' + this.randomStr
      this.captchaImage = process.env.VUE_APP_API_BASE_URL + '/verify/captcha/' + this.randomStr
      // getCaptchaImage(this.randomStr).then(res)
    },
    getRandomStr () {
      return new Date().getTime() + Math.random() * 1000
    }
  }
}
</script>

<style lang="less" scoped>
.user-layout-login {
  label {
    font-size: 14px;
  }

  .getCaptcha {
    display: block;
    width: 100%;
    height: 40px;
  }

  .forge-password {
    font-size: 14px;
  }

  button.login-button {
    padding: 0 15px;
    font-size: 16px;
    height: 40px;
    width: 100%;
  }
  .ant-tabs-nav {
    color:white !important;
  }
  .user-login-other {
    text-align: left;
    margin-top: 24px;
    line-height: 22px;

    .item-icon {
      font-size: 24px;
      color: rgba(0, 0, 0, 0.2);
      margin-left: 16px;
      vertical-align: middle;
      cursor: pointer;
      transition: color 0.3s;

      &:hover {
        color: #1890ff;
      }
    }

    .register {
      float: right;
    }
  }
}
</style>
