src/views/components/topology/topo-services.vue

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<template>
  <div class="selector-topo-aside-box">
    <TopoSelect :current="group" :data="groups" @onChoose="changeGroup" />
    <TopoSelect :current="service" :data="currentServices" @onChoose="changeService" />
  </div>
</template>
<script lang="ts">
  import { DurationTime } from '@/types/global';
  import compareObj from '@/utils/comparison';
  import { Component, Vue, Watch } from 'vue-property-decorator';
  import { Action, Getter, Mutation } from 'vuex-class';
  import TopoSelect from './topo-select.vue';

  @Component({ components: { TopoSelect } })
  export default class TopoServices extends Vue {
    @Getter('durationTime') public durationTime: any;
    @Action('rocketTopo/GET_TOPO') public GET_TOPO: any;
    @Action('rocketTopo/GET_SERVICES') private GET_SERVICES: any;
    @Mutation('rocketTopoGroup/UNSELECT_GROUP') private UNSELECT_GROUP: any;
    private services = [{ key: '', label: 'All services', group: '' }];
    private currentServices = [{ key: '', label: 'All services' }];
    private service = { key: '', label: 'All services' };
    private groups = [{ key: '', label: 'All groups' }];
    private group = { key: '', label: 'All groups' };

    private created() {
      this.fetchData();
    }

    get currentServiceList() {
      const services = this.group.key ? this.services.filter((item) => item.group === this.group.key) : this.services;

      return [{ key: '', label: 'All services' }, ...services];
    }

    private fetchData() {
      this.GET_SERVICES({ duration: this.durationTime }).then(
        (json: Array<{ key: string; label: string; group: string }>) => {
          const groups = [] as string[];
          for (const g of json) {
            if (g.group && !groups.includes(g.group)) {
              groups.push(g.group);
            }
          }
          this.groups = [
            ...groups.sort().map((g) => {
              return {
                key: g,
                label: g,
              };
            }),
            { key: '', label: 'All groups' },
          ];
          this.group = this.groups[0];
          this.services = json;
          this.currentServices = this.currentServiceList;
          this.service = this.currentServices[0];
          this.renderTopo();
        },
      );
    }

    private changeService(i: { key: string; label: string; group: string }) {
      this.service = i;
      this.UNSELECT_GROUP();
      this.changeTopo();
    }

    private changeGroup(i: { key: string; label: string }) {
      this.group = i;
      this.currentServices = this.currentServiceList;
      this.service = this.currentServices[0];
      this.changeTopo();
    }

    private renderTopo() {
      const groups = localStorage.getItem('topology-groups');
      if (groups) {
        const jsonGroup = JSON.parse(groups);
        if (!jsonGroup.length) {
          this.getServicesTopo();
        }
      } else {
        this.getServicesTopo();
      }
    }

    private getServicesTopo() {
      const serviceIds = this.group.key ? this.currentServices.map((item) => item.key) : undefined;

      this.GET_TOPO({
        serviceIds,
        duration: this.durationTime,
      });
    }

    private changeTopo() {
      if (this.service.key) {
        this.GET_TOPO({
          serviceId: this.service.key,
          duration: this.durationTime,
        });
      } else {
        this.getServicesTopo();
      }
    }

    @Watch('durationTime')
    private watchDurationTime(newValue: DurationTime, oldValue: DurationTime) {
      // Avoid repeating fetchData() after enter the component for the first time.
      if (compareObj(newValue, oldValue)) {
        this.fetchData();
      }
    }
  }
</script>
<style lang="scss">
  .topo-server.dao-select .dao-select-main .dao-select-switch {
    border: 0;
  }
  .selector-topo-aside-box {
    z-index: 101;
    position: absolute;
    display: flex;
    > div:last-child {
      margin-left: 10px;
    }
  }
</style>