<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' }"
        @change="handleTabClick"
      >
        <a-tab-pane key="tab1" tab="账号密码登录">
          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="账户: admin"
              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="密码: admin or ant.design"
              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-tab-pane>
      </a-tabs>

      <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>

  </div>
</template>

<script>
import md5 from 'md5';
import TwoStepCaptcha from '@/components/tools/TwoStepCaptcha';
import { mapActions } from 'vuex';
// import { timeFix } from '@/utils/util';
import { getSmsCaptcha, get2step } from '@/api/login';

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

      validateFields(validateFieldsKey, { force: true }, (err, values) => {
        if (!err) {
          console.log('login form', values);
          const loginParams = { ...values };
          delete loginParams.username;
          loginParams[!state.loginType ? 'email' : 'username'] = values.username;
          loginParams.password = md5(values.password);
          Login(loginParams)
            .then((res) => this.loginSuccess(res))
            .catch(err => this.requestFailed(err))
            .finally(() => {
              state.loginBtn = false;
            });
        } else {
          setTimeout(() => {
            state.loginBtn = false;
          }, 600);
        }
      });
    },
    getCaptcha(e) {
      e.preventDefault();
      const { form: { validateFields }, state } = this;

      validateFields(['mobile'], { force: true }, (err, values) => {
        if (!err) {
          state.smsSendBtn = true;

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

          const hide = this.$message.loading('验证码发送中..', 0);
          getSmsCaptcha({ mobile: values.mobile }).then(res => {
            setTimeout(hide, 2500);
            this.$notification['success']({
              message: '提示',
              description: '验证码获取成功，您的验证码为：' + res.result.captcha,
              duration: 8
            });
          }).catch(err => {
            setTimeout(hide, 1);
            clearInterval(interval);
            state.time = 60;
            state.smsSendBtn = false;
            this.requestFailed(err);
          });
        }
      });
    },
    stepCaptchaSuccess() {
      this.loginSuccess();
    },
    stepCaptchaCancel() {
      this.Logout().then(() => {
        this.loginBtn = false;
        this.stepCaptchaVisible = false;
      });
    },
    loginSuccess(res) {
      console.log(res);
      this.$router.push({ paht: '/' });
    },
    requestFailed(err) {
      this.$notification['error']({
        message: '错误',
        description: ((err.response || {}).data || {}).message || '请求出现错误，请稍后再试',
        duration: 4
      });
    }
  }
};
</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%;
  }

  .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>
