<template>
  <div
    :class="[
      'login-wrapper',
      ['', 'login-form-right', 'login-form-left'][direction]
    ]"
  >
    <el-form
      ref="form"
      size="large"
      :model="form"
      :rules="rules"
      class="login-form ele-bg-white"
      @keyup.enter.native="submit"
    >
      <el-popover width="150" trigger="hover">
        <div>
          <img style="width: 100%" :src="qrcodeUrl" alt="" srcset="" />
          <div style="text-align: center">浏览器扫一扫下载</div>
        </div>
        <div slot="reference" class="switch-btn"></div>
      </el-popover>

      <h4>{{ $t('login.title') }}</h4>
      <el-form-item prop="loginName">
        <el-input
          clearable
          v-model="form.loginName"
          prefix-icon="el-icon-user"
          placeholder="请输入登录账号"
        />
      </el-form-item>
      <el-form-item prop="loginPwd">
        <el-input
          show-password
          v-model="form.loginPwd"
          prefix-icon="el-icon-lock"
          placeholder="请输入登录密码"
        />
      </el-form-item>
      <el-form-item prop="captcha">
        <div class="login-input-group">
          <el-input
            clearable
            v-model="form.captcha"
            prefix-icon="el-icon-_vercode"
            :placeholder="$t('login.code')"
          />
          <img
            alt=""
            :src="captcha"
            class="login-captcha"
            @click="changeCaptcha"
          />
        </div>
      </el-form-item>
      <div class="el-form-item">
        <el-checkbox v-model="form.remember">
          {{ $t('login.remember') }}
        </el-checkbox>
        <el-link
          type="primary"
          :underline="false"
          class="ele-pull-right"
          @click="$router.push('/forget')"
        >
          忘记密码
        </el-link>
      </div>
      <div class="el-form-item">
        <el-button
          size="large"
          type="primary"
          class="login-btn"
          :loading="loading"
          @click="submit"
        >
          {{ loading ? $t('login.loading') : $t('login.login') }}
        </el-button>
      </div>
      <div class="ele-text-center" style="margin-bottom: 10px">
        <!-- <i class="login-oauth-icon el-icon-_qq" style="background: #3492ed"></i>
        <i
          class="login-oauth-icon el-icon-_wechat"
          style="background: #4daf29"
        ></i>
        <i
          class="login-oauth-icon el-icon-_weibo"
          style="background: #cf1900"
        ></i> -->
      </div>
    </el-form>
    <div class="login-copyright">
      <!-- copyright © 2022 eleadmin.com all rights reserved. -->
    </div>
    <!-- 多语言切换 -->
    <div style="position: absolute; right: 30px; top: 20px">
      <i18n-icon
        :icon-style="{ fontSize: '22px', color: '#fff', cursor: 'pointer' }"
      />
    </div>
    <!-- 实际项目去掉这段 -->
    <div
      class="hidden-xs-only"
      style="position: absolute; right: 30px; bottom: 20px; z-index: 9"
    >
      <el-radio-group v-model="direction" size="mini">
        <el-radio-button label="2">居左</el-radio-button>
        <el-radio-button label="0">居中</el-radio-button>
        <el-radio-button label="1">居右</el-radio-button>
      </el-radio-group>
    </div>
  </div>
</template>

<script>
  import I18nIcon from '@/layout/components/i18n-icon.vue';
  import { getToken } from '@/utils/token-util';
  import {
    login,
    getCaptcha,
    getLatestVersion,
    getParentIdListByDeptId
  } from '@/api/login';
  import xyy from '@/assets/xyy.jpg';
  import { getPathAddress } from '@/api/system/file';
  import { setCurrentUser } from '@/utils/token-util';
  import { factoryareaId } from '@/api/system/user';
  import QRCode from 'qrcode';

  export default {
    // eslint-disable-next-line vue/multi-word-component-names
    name: 'Login',
    components: { I18nIcon },
    data() {
      return {
        // 登录框方向, 0居中, 1居右, 2居左
        xyy,
        direction: 0,
        // 加载状态
        loading: false,
        // 表单数据
        form: {
          loginName: localStorage.getItem('accountInfo')
            ? JSON.parse(localStorage.getItem('accountInfo')).loginName
            : '',
          loginPwd: localStorage.getItem('accountInfo')
            ? JSON.parse(localStorage.getItem('accountInfo')).loginPwd
            : '',
          remember: localStorage.getItem('accountInfo')
            ? JSON.parse(localStorage.getItem('accountInfo')).remember
            : false,
          captcha: '',
          uuid: ''
        },
        // 验证码base64数据
        captcha: '',
        // 验证码内容, 实际项目去掉
        text: '',
        qrcodeUrl: ''
      };
    },
    computed: {
      // 表单验证规则
      rules() {
        return {
          loginName: [
            {
              required: true,
              message: this.$t('请输入登录账号'),
              type: 'string',
              trigger: 'blur'
            }
          ],
          loginPwd: [
            {
              required: true,
              message: this.$t('请输入登录密码'),
              type: 'string',
              trigger: 'blur'
            }
          ],

          captcha: [
            {
              required: true,
              message: '验证码不能为空',
              type: 'string',
              trigger: 'blur'
            }
          ]
        };
      }
    },
    created() {
      this.changeCaptcha();
      this.generateQRCode();
      if (getToken()) {
        this.goHome();
      } else {
        // 重置菜单权限
        this.$store.commit('user/setMenus', null);
      }
    },
    methods: {
      generateQRCode() {
        getLatestVersion().then((res) => {
          console.log(res, 'dasdasd');
          QRCode.toDataURL(res.fileUrl, {
            errorCorrectionLevel: 'H',
            margin: 2,
            scale: 8
          }).then((url) => {
            console.log('qrcodeUrl', url);
            this.qrcodeUrl = url;
          });
        });
      },
      /* 提交 */
      submit() {
        this.$refs.form.validate((valid) => {
          if (!valid) {
            return false;
          }
          this.loading = true;
          login(this.form)
            .then(async (res) => {
              localStorage.setItem('userId', res.data.userId);
              localStorage.setItem('accountId', res.data.accountId);
              // 用户信息
              if (res.data?.loginChangeGroupVOList.length > 0) {
                setCurrentUser(
                  {
                    currentGroupId: res.data.loginChangeGroupVOList[0].groupId,
                    currentRoleId:
                      res.data.loginChangeGroupVOList[0]
                        .loginChangeRoleVOList[0].roleId
                  },
                  this.form.remember
                );
              }
              res.data.groupIdList = await getParentIdListByDeptId(
                res.data.groupId
              );
              const filePath = await getPathAddress();
              res.data.avatarAddress =
                res.data.avatar && res.data.avatar.length
                  ? filePath + res.data.avatar[0].storePath
                  : xyy;

              if (res.data.factoryId) {
                let factoryareaData = await factoryareaId(res.data.factoryId);
                res.data['factoryName'] = factoryareaData.name;
              }

              this.$store.commit('user/setUserInfo', res.data);
              this.loading = false;
              this.$message.success(res.message);

              if (this.form.remember) {
                localStorage.setItem('accountInfo', JSON.stringify(this.form));
              } else {
                localStorage.removeItem('accountInfo');
              }

              // await this.$store.dispatch('user/getCurrentUserAuthorityDept');
              // await this.$store.dispatch('paramsSetData/setParamsDataInfo');
              this.goHome();
            })
            .catch((e) => {
              this.changeCaptcha();
              this.loading = false;
              // this.$message.error(e.message);
            });
        });
      },
      /* 跳转到首页 */
      goHome() {
        localStorage.setItem('singleUserInfo', '0');
        this.$router.push(this.$route?.query?.from ?? '/').catch(() => {});
      },
      /* 更换图形验证码 */
      changeCaptcha() {
        this.form.uuid = this.generateUUID();
        // 这里演示的验证码是后端返回base64格式的形式, 如果后端地址直接是图片请参考忘记密码页面
        getCaptcha({ uuid: this.form.uuid })
          .then((data) => {
            this.captcha = URL.createObjectURL(data.data);
            this.$refs?.form?.clearValidate();
          })
          .catch((e) => {
            // this.$message.error(e.message);
          });
      },
      generateUUID() {
        var d = new Date().getTime(); //Timestamp
        var d2 =
          (performance && performance.now && performance.now() * 1000) || 0; //Time in microseconds since page-load or 0 if unsupported
        return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(
          /[xy]/g,
          function (c) {
            var r = Math.random() * 16; //random number between 0 and 16
            if (d > 0) {
              //Use timestamp until depleted
              r = (d + r) % 16 | 0;
              d = Math.floor(d / 16);
            } else {
              //Use microseconds since page-load if supported
              r = (d2 + r) % 16 | 0;
              d2 = Math.floor(d2 / 16);
            }
            return (c === 'x' ? r : (r & 0x3) | 0x8).toString(16);
          }
        );
      }
    }
  };
</script>

<style lang="scss" scoped>
  .switch-btn {
    background: url(@/assets/qr-code-sprites.png) 0 0 / 40px auto no-repeat;
    cursor: pointer;
    height: 40px;
    left: 8px;
    position: absolute;
    top: 8px;
    width: 40px;
    z-index: 1;
  }

  .switch-btn:hover {
    background-position: 0 -40px;
  }

  /* 背景 */
  .login-wrapper {
    padding: 50px 20px;
    position: relative;
    box-sizing: border-box;
    background-image: url('@/assets/bg-login.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    min-height: 100vh;

    &:before {
      content: '';
      background-color: rgba(0, 0, 0, 0.2);
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
    }
  }

  /* 卡片 */
  .login-form {
    margin: 0 auto;
    width: 360px;
    max-width: 100%;
    padding: 25px 30px;
    position: relative;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
    box-sizing: border-box;
    border-radius: 4px;
    z-index: 2;

    h4 {
      text-align: center;
      margin: 0 0 25px 0;
    }

    & > .el-form-item {
      margin-bottom: 25px;
    }
  }

  .login-form-right .login-form {
    margin: 0 15% 0 auto;
  }

  .login-form-left .login-form {
    margin: 0 auto 0 15%;
  }

  /* 验证码 */
  .login-input-group {
    display: flex;
    align-items: center;

    :deep(.el-input) {
      flex: 1;
    }
  }

  .login-captcha {
    height: 38px;
    width: 102px;
    margin-left: 10px;
    border-radius: 4px;
    border: 1px solid #dcdfe6;
    text-align: center;
    cursor: pointer;

    &:hover {
      opacity: 0.75;
    }
  }

  .login-btn {
    display: block;
    width: 100%;
  }

  /* 第三方登录图标 */
  .login-oauth-icon {
    color: #fff;
    padding: 5px;
    margin: 0 10px;
    font-size: 18px;
    border-radius: 50%;
    cursor: pointer;
  }

  /* 底部版权 */
  .login-copyright {
    color: #eee;
    padding-top: 20px;
    text-align: center;
    position: relative;
    z-index: 1;
  }

  /* 响应式 */
  @media screen and (min-height: 550px) {
    .login-form {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translateX(-50%);
      margin-top: -220px;
    }

    .login-form-right .login-form,
    .login-form-left .login-form {
      left: auto;
      right: 15%;
      transform: translateX(0);
      margin: -220px auto auto auto;
    }

    .login-form-left .login-form {
      right: auto;
      left: 15%;
    }

    .login-copyright {
      position: absolute;
      bottom: 20px;
      right: 0;
      left: 0;
    }
  }

  @media screen and (max-width: 768px) {
    .login-form-right .login-form,
    .login-form-left .login-form {
      left: 50%;
      right: auto;
      transform: translateX(-50%);
      margin-right: auto;
    }
  }
</style>
