skywalking-booster-ui/src/views/dashboard/related/ebpf/components/EBPFSchedules.vue

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this work for additional information regarding copyright ownership.
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  http://www.apache.org/licenses/LICENSE-2.0

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limitations under the License. -->
<template>
  <div class="filters">
    <Selector
      :value="selectedLabels"
      :options="labels"
      size="small"
      placeholder="Please select labels"
      @change="changeLabels"
      class="inputs mr-10"
      :multiple="true"
    />
    <el-popover placement="bottom" :width="680" trigger="click">
      <template #reference>
        <el-button type="primary" size="small">
          {{ t("processSelect") }}
        </el-button>
      </template>
      <el-input
        v-model="searchText"
        placeholder="Please input name"
        class="input-with-search"
        size="small"
        @change="searchProcesses"
      >
        <template #append>
          <el-button size="small">
            <Icon size="sm" iconName="search" />
          </el-button>
        </template>
      </el-input>
      <el-table
        :data="currentProcesses"
        ref="multipleTableRef"
        @selection-change="handleSelectionChange"
      >
        <el-table-column type="selection" width="55" />
        <el-table-column
          v-for="(h, index) of TableHeader"
          :property="h.property"
          :label="h.label"
          :key="index"
          width="150"
        />
        <el-table-column width="300" label="Attributes">
          <template #default="scope">
            {{ scope.row.attributes.map((d: {name: string, value: string}) => `${d.name}=${d.value}`).join("; ") }}
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        class="pagination"
        background
        small
        layout="prev, pager, next"
        :page-size="pageSize"
        :total="processes.length"
        @current-change="changePage"
        @prev-click="changePage"
        @next-click="changePage"
      />
    </el-popover>
    <el-button type="primary" size="small" @click="analyzeEBPF">
      {{ t("analyze") }}
    </el-button>
  </div>
  <div ref="timeline" class="schedules"></div>
</template>
<script lang="ts" setup>
import { ref, watch } from "vue";
import dayjs from "dayjs";
import { useI18n } from "vue-i18n";
import { Option } from "@/types/app";
import { TableHeader } from "./data";
import { useEbpfStore } from "@/store/modules/ebpf";
import { EBPFProfilingSchedule, Process } from "@/types/ebpf";
import { DataSet, Timeline } from "vis-timeline/standalone";
import "vis-timeline/styles/vis-timeline-graph2d.css";
import { ElMessage, ElTable } from "element-plus";

const { t } = useI18n();
const ebpfStore = useEbpfStore();
const pageSize = 5;
/*global Nullable */
const multipleTableRef = ref<InstanceType<typeof ElTable>>();
const selectedProcesses = ref<string[]>([]);
const timeline = ref<Nullable<HTMLDivElement>>(null);
const visGraph = ref<Nullable<any>>(null);
const labels = ref<Option[]>([{ label: "All", value: "0" }]);
const processes = ref<Process[]>([]);
const currentProcesses = ref<Process[]>([]);
const selectedLabels = ref<string[]>(["0"]);
const searchText = ref<string>("");
const dateFormat = (date: number, pattern = "YYYY-MM-DD HH:mm:ss") =>
  new Date(dayjs(date).format(pattern));

function changeLabels(opt: any[]) {
  const arr = opt.map((d) => d.value);
  selectedLabels.value = arr;
}

const handleSelectionChange = (arr: Process[]) => {
  selectedProcesses.value = arr.map((d: Process) => d.id);
};

async function analyzeEBPF() {
  let arr: string[] = [];
  if (selectedLabels.value.includes("0")) {
    arr = labels.value.map((d: Option) => d.value);
  }
  const ranges: { start: number; end: number }[] = [];
  const scheduleIdList = ebpfStore.eBPFSchedules.flatMap(
    (d: EBPFProfilingSchedule) => {
      const l = d.process.labels.find((d: string) => arr.includes(d));
      const i = selectedLabels.value.includes(d.process.id);
      if (l || i) {
        ranges.push({
          start: d.startTime,
          end: d.endTime,
        });
        return d.scheduleId;
      }
    }
  );
  let timeRanges: { start: number; end: number }[] = [];
  for (const r of ranges) {
    if (timeRanges.length) {
      for (const t of timeRanges) {
        if (r.start > t.start && r.start < t.end) {
          if (r.end > t.end) {
            t.end = r.end;
          }
        }
      }
    } else {
      timeRanges.push(r);
    }
  }
  const res = await ebpfStore.getEBPFAnalyze({
    scheduleIdList,
    timeRanges,
  });
  if (res.data.errors) {
    ElMessage.error(res.data.errors);
    return;
  }
  if (res.data.analysisEBPFResult.tip) {
    ElMessage.error(res.data.analysisEBPFResult.tip);
  }
}

function visTimeline() {
  if (visGraph.value) {
    visGraph.value.destroy();
  }
  labels.value = [{ label: "All", value: "0" }];
  processes.value = [];
  const schedules = ebpfStore.eBPFSchedules.map(
    (d: EBPFProfilingSchedule, index: number) => {
      for (const l of d.process.labels) {
        labels.value.push({ label: l, value: l });
      }
      processes.value.push(d.process);
      return {
        id: index + 1,
        content: d.process.name,
        start: dateFormat(d.startTime),
        end: dateFormat(d.endTime),
      };
    }
  );
  searchProcesses();
  const items: any = new DataSet(schedules);
  const options = {
    height: 250,
    width: "100%",
    locale: "en",
  };
  if (!timeline.value) {
    return;
  }
  visGraph.value = new Timeline(timeline.value, items, options);
}

function changePage(pageIndex: number) {
  searchProcesses(pageIndex);
}

function searchProcesses(pageIndex?: any) {
  const arr = processes.value.filter((d: { name: string }) =>
    d.name.includes(searchText.value)
  );
  currentProcesses.value = arr.splice(
    (pageIndex - 1 || 0) * pageSize,
    pageSize * (pageIndex || 1)
  );
}

watch(
  () => ebpfStore.eBPFSchedules,
  () => {
    visTimeline();
  }
);
</script>
<style lang="scss" scoped>
.filters {
  margin: 5px 0;
}

.schedules {
  width: 100%;
  margin: 0 5px 5px 0;
}

.inputs {
  width: 300px;
}

.input-with-search {
  width: 650px;
  margin-bottom: 5px;
}

.pagination {
  margin-top: 10px;
}
</style>