<template>
  <div class="app-container">
    <!--dialog-->
    <el-dialog :visible.sync="dialogVisible" width="640px" :title="$t('Edit User')">
      <el-form ref="form" :model="userForm" label-width="80px" :rules="rules" inline-message>
        <el-form-item prop="username" :label="$t('Username')" required>
          <el-input v-model="userForm.username" :placeholder="$t('Username')" :disabled="!isAdd" />
        </el-form-item>
        <el-form-item prop="password" :label="$t('Password')" required>
          <el-input v-model="userForm.password" type="password" :placeholder="$t('Password')" />
        </el-form-item>
        <el-form-item prop="role" :label="$t('Role')" required>
          <el-select v-model="userForm.role" :placeholder="$t('Role')">
            <el-option value="admin" :label="$t('admin')" />
            <el-option value="normal" :label="$t('normal')" />
          </el-select>
        </el-form-item>
        <el-form-item prop="email" :label="$t('Email')">
          <el-input v-model="userForm.email" :placeholder="$t('Email')" />
        </el-form-item>
      </el-form>
      <template slot="footer">
        <el-button size="small" @click="dialogVisible=false">{{ $t('Cancel') }}</el-button>
        <el-button type="primary" size="small" @click="onConfirm">{{ $t('Confirm') }}</el-button>
      </template>
    </el-dialog>
    <!--./dialog-->

    <el-card>
      <div class="filter">
        <div class="left" />
        <div class="right">
          <el-button type="success" icon="el-icon-plus" size="small" @click="onClickAddUser">添加用户</el-button>
        </div>
      </div>
      <!--table-->
      <el-table
        :data="userList"
        :header-cell-style="{background:'rgb(48, 65, 86)',color:'white'}"
        border
      >
        <el-table-column
          width="120px"
          :label="$t('Username')"
          prop="username"
        />
        <el-table-column
          width="150px"
          :label="$t('Role')"
        >
          <template slot-scope="scope">
            <el-tag v-if="scope.row.username === 'admin'" type="success">
              {{ $t('Super Admin') }}
            </el-tag>
            <el-tag v-else-if="scope.row.role === 'admin'" type="primary">
              {{ $t(scope.row.role) }}
            </el-tag>
            <el-tag v-else type="warning">
              {{ $t(scope.row.role) }}
            </el-tag>
          </template>
        </el-table-column>
        <el-table-column
          width="150px"
          :label="$t('Create Time')"
        >
          <template slot-scope="scope">
            {{ getTime(scope.row.create_ts) }}
          </template>
        </el-table-column>
        <el-table-column
          :label="$t('Action')"
          fixed="right"
        >
          <template slot-scope="scope">
            <el-button
              v-if="isShowEdit(scope.row)"
              icon="el-icon-edit"
              type="warning"
              size="mini"
              @click="onEdit(scope.row)"
            />
            <el-button
              v-if="isShowRemove(scope.row)"
              icon="el-icon-delete"
              type="danger"
              size="mini"
              @click="onRemove(scope.row)"
            />
          </template>
        </el-table-column>
      </el-table>

      <div class="pagination">
        <el-pagination
          :current-page.sync="pageNum"
          :page-sizes="[10, 20, 50, 100]"
          :page-size.sync="pageSize"
          layout="sizes, prev, pager, next"
          :total="totalCount"
          @current-change="onPageChange"
          @size-change="onPageChange"
        />
      </div>
      <!--./table-->
    </el-card>
  </div>
</template>

<script>
  import {
    mapState,
    mapGetters
  } from 'vuex'
  import dayjs from 'dayjs'

  export default {
    name: 'UserList',
    data() {
      const validatePass = (rule, value, callback) => {
        if (!value) return callback()
        if (value.length < 5) {
          callback(new Error(this.$t('Password length should be no shorter than 5')))
        } else {
          callback()
        }
      }
      const validateEmail = (rule, value, callback) => {
        if (!value) return callback()
        if (!value.match(/.+@.+/i)) {
          callback(new Error(this.$t('Email format invalid')))
        } else {
          callback()
        }
      }
      return {
        dialogVisible: false,
        isAdd: false,
        rules: {
          password: [{ validator: validatePass }],
          email: [{ validator: validateEmail }]
        }
      }
    },
    computed: {
      ...mapState('user', [
        'userList',
        'userForm',
        'totalCount'
      ]),
      ...mapGetters('user', [
        'userInfo'
      ]),
      pageSize: {
        get() {
          return this.$store.state.user.pageSize
        },
        set(value) {
          this.$store.commit('user/SET_PAGE_SIZE', value)
        }
      },
      pageNum: {
        get() {
          return this.$store.state.user.pageNum
        },
        set(value) {
          this.$store.commit('user/SET_PAGE_NUM', value)
        }
      }
    },
    created() {
      this.$store.dispatch('user/getUserList')
    },
    methods: {
      onPageChange() {
        this.$store.dispatch('user/getUserList')
      },
      getTime(ts) {
        return dayjs(ts).format('YYYY-MM-DD HH:mm:ss')
      },
      onEdit(row) {
        this.isAdd = false
        this.$store.commit('user/SET_USER_FORM', row)
        this.dialogVisible = true
      },
      onRemove(row) {
        this.$confirm(this.$t('Are you sure to delete this user?'), this.$t('Notification'), {
          confirmButtonText: this.$t('Confirm'),
          cancelButtonText: this.$t('Cancel'),
          type: 'warning'
        }).then(() => {
          this.$store.dispatch('user/deleteUser', row._id)
            .then(() => {
              this.$message({
                type: 'success',
                message: this.$t('Deleted successfully')
              })
            })
            .then(() => {
              this.$store.dispatch('user/getUserList')
            })
          this.$st.sendEv('用户列表', '删除用户')
        })
      // this.$store.commit('user/SET_USER_FORM', row)
      },
      onConfirm() {
        this.$refs.form.validate(valid => {
          if (!valid) return
          if (this.isAdd) {
            // 添加用户
            this.$store.dispatch('user/addUser')
              .then(() => {
                this.$message({
                  type: 'success',
                  message: this.$t('Saved successfully')
                })
                this.dialogVisible = false
                this.$st.sendEv('用户列表', '添加用户')
              })
              .then(() => {
                this.$store.dispatch('user/getUserList')
              })
          } else {
            // 编辑用户
            this.$store.dispatch('user/editUser')
              .then(() => {
                this.$message({
                  type: 'success',
                  message: this.$t('Saved successfully')
                })
                this.dialogVisible = false
                this.$st.sendEv('用户列表', '编辑用户')
              })
          }
        })
      },
      onClickAddUser() {
        this.isAdd = true
        this.$store.commit('user/SET_USER_FORM', {})
        this.dialogVisible = true
      },
      onValidateEmail(value) {
      },
      isShowEdit(row) {
        if (row.username === 'admin') {
          return this.userInfo.username === 'admin'
        }
        return true
      },
      isShowRemove(row) {
        return row.username !== 'admin'
      }
    }
  }
</script>

<style lang="scss" scoped>
  .filter {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;

    .filter-search {
      width: 240px;
    }

    .right {
      .btn {
        margin-left: 10px;
      }
    }
  }

  .el-table {
    border-radius: 5px;
  }

  .el-table .el-button {
    padding: 7px;
  }
</style>
