<!-- Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements.  See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License.  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. -->
<template>
  <div class="nav-bar flex-h">
    <el-breadcrumb
      :separator-icon="ArrowRight"
      class="title flex-h"
      v-if="pathNames.length"
      :style="{ '--el-text-color-placeholder': '#666' }"
    >
      <el-breadcrumb-item
        v-for="(path, index) in pathNames"
        :key="index"
        :replace="true"
        :to="{ path: getName(path).path || '' }"
      >
        <el-dropdown size="small" placement="bottom" :persistent="false">
          <span class="cp name">{{ getName(path).name }}</span>
          <template #dropdown>
            <el-dropdown-menu>
              <el-dropdown-item @click="setName(p)" v-for="(p, index) in path" :key="index">
                <span>{{ p.name }}</span>
              </el-dropdown-item>
            </el-dropdown-menu>
          </template>
        </el-dropdown>
      </el-breadcrumb-item>
    </el-breadcrumb>
    <div class="title" v-else>{{ pageTitle }}</div>
    <div class="app-config">
      <span class="red" v-show="showTimeRangeTips">{{ t("timeTips") }}</span>
      <TimePicker
        :value="[appStore.durationRow.start, appStore.durationRow.end]"
        :maxRange="appStore.maxRange"
        position="bottom"
        format="YYYY-MM-DD HH:mm"
        :showButtons="true"
        @confirm="changeTimeRange"
      />
      <span> UTC{{ appStore.utcHour >= 0 ? "+" : "" }}{{ `${appStore.utcHour}:${appStore.utcMin}` }} </span>
      <span class="ml-5">
        <el-switch
          v-model="coldStage"
          inline-prompt
          inactive-text="Cold Excluded"
          active-text="Cold Only"
          @change="changeDataMode"
          width="105px"
        />
      </span>
      <span class="ml-5" ref="themeSwitchRef">
        <el-switch
          v-model="theme"
          :active-icon="Moon"
          :inactive-icon="Sunny"
          inline-prompt
          @change="handleChangeTheme"
        />
      </span>
      <span title="refresh" class="ghost ml-5 cp" @click="handleReload">
        <Icon iconName="retry" :loading="appStore.autoRefresh" class="middle" />
      </span>
      <span class="version ml-5 cp">
        <el-popover trigger="hover" :width="250" placement="bottom" :content="appStore.version">
          <template #reference>
            <span>
              <Icon iconName="info_outline" size="middle" />
            </span>
          </template>
        </el-popover>
      </span>
    </div>
  </div>
</template>
<script lang="ts" setup>
  import router from "@/router";
  import { useAppStoreWithOut, InitializationDurationRow } from "@/store/modules/app";
  import { useDashboardStore } from "@/store/modules/dashboard";
  import { useTraceStore } from "@/store/modules/trace";
  import type { DashboardItem } from "@/types/dashboard";
  import timeFormat from "@/utils/timeFormat";
  import { MetricCatalog } from "@/views/dashboard/data";
  import { ArrowRight, Moon, Sunny } from "@element-plus/icons-vue";
  import { ElMessage } from "element-plus";
  import { ref, watch } from "vue";
  import { useI18n } from "vue-i18n";
  import { useRoute } from "vue-router";
  import { useTheme } from "@/hooks/useTheme";

  const { t, te } = useI18n();
  const appStore = useAppStoreWithOut();
  const dashboardStore = useDashboardStore();
  const traceStore = useTraceStore();
  const route = useRoute();
  const { theme, themeSwitchRef, initializeTheme, handleChangeTheme } = useTheme();
  const pathNames = ref<{ path?: string; name: string; selected: boolean }[][]>([]);
  const showTimeRangeTips = ref<boolean>(false);
  const pageTitle = ref<string>("");
  const coldStage = ref<boolean>(false);

  initializeTheme();
  resetDuration();
  getVersion();
  getNavPaths();
  setTTL();
  traceStore.getHasQueryTracesV2Support();

  function changeDataMode() {
    appStore.setColdStageMode(coldStage.value);
    if (coldStage.value) {
      handleMetricsTTL({
        minute: appStore.metricsTTL?.coldMinute || NaN,
        hour: appStore.metricsTTL?.coldHour || NaN,
        day: appStore.metricsTTL?.coldDay || NaN,
      });
    } else {
      handleMetricsTTL({
        minute: appStore.metricsTTL?.minute || NaN,
        hour: appStore.metricsTTL?.hour || NaN,
        day: appStore.metricsTTL?.day || NaN,
      });
    }
    appStore.setDuration(InitializationDurationRow);
  }

  function getName(list: any[]) {
    return list.find((d: any) => d.selected) || {};
  }

  function setName(item: any) {
    pathNames.value = pathNames.value.map((list: { path?: string; name: string; selected: boolean }[]) => {
      const p = list.find((i: any) => i.entity === item.entity && item.layer === i.layer && i.name === item.name);
      if (p) {
        list = list.map((d: any) => {
          d.selected = false;
          if (d.entity === item.entity && item.layer === d.layer && d.name === item.name) {
            d.selected = true;
          }
          return d;
        });
      }

      return list;
    });
    item.path && router.push(item.path);
  }

  function handleReload() {
    const gap = appStore.duration.end.getTime() - appStore.duration.start.getTime();
    const dates: Date[] = [new Date(new Date().getTime() - gap), new Date()];
    appStore.setDuration(timeFormat(dates));
  }

  function changeTimeRange(val: Date[]) {
    showTimeRangeTips.value = val[1].getTime() - val[0].getTime() > 60 * 24 * 60 * 60 * 1000;
    if (showTimeRangeTips.value) {
      return;
    }
    appStore.setDuration(timeFormat(val));
  }

  async function setTTL() {
    await getMetricsTTL();
    await getRecordsTTL();
    // Initialize TTL handling without triggering duration update
    if (coldStage.value) {
      handleMetricsTTL({
        minute: appStore.metricsTTL?.coldMinute ?? NaN,
        hour: appStore.metricsTTL?.coldHour ?? NaN,
        day: appStore.metricsTTL?.coldDay ?? NaN,
      });
    } else {
      handleMetricsTTL({
        minute: appStore.metricsTTL?.minute ?? NaN,
        hour: appStore.metricsTTL?.hour ?? NaN,
        day: appStore.metricsTTL?.day ?? NaN,
      });
    }
  }
  async function getRecordsTTL() {
    const resp = await appStore.queryRecordsTTL();
    if (resp.errors) {
      ElMessage.error(resp.errors);
    }
  }

  async function getMetricsTTL() {
    const resp = await appStore.queryMetricsTTL();
    if (resp.errors) {
      ElMessage.error(resp.errors);
    }
  }

  function handleMetricsTTL({ minute, hour, day }: { minute: number; hour: number; day: number }) {
    if (minute === -1 || hour === -1 || day === -1) {
      return appStore.setMaxRange([]);
    }
    if (!day) {
      return appStore.setMaxRange([]);
    }
    const gap = Math.max(day, hour, minute);
    const dates: Date[] = [new Date(new Date().getTime() - dayToMS(gap + 1)), new Date()];

    appStore.setMaxRange(dates);
  }

  function dayToMS(day: number) {
    return day * 24 * 60 * 60 * 1000;
  }

  function getNavPaths() {
    pathNames.value = [];
    pageTitle.value = "";
    const dashboard = dashboardStore.currentDashboard;

    if (!(dashboard && dashboard.name)) {
      updateNavTitle();
      return;
    }
    const root =
      dashboardStore.dashboards.filter((d: DashboardItem) => d.isRoot && dashboard.layer === d.layer)[0] || {};
    for (const item of appStore.allMenus) {
      if (item.subItems && item.subItems.length) {
        for (const subItem of item.subItems) {
          if (subItem.layer === root.layer) {
            root.path = subItem.path;
          }
        }
      } else {
        if (item.layer === root.layer) {
          root.path = item.path;
        }
      }
    }
    pathNames.value.push([{ ...root, selected: true }]);
    if (dashboard.entity === MetricCatalog.ALL) {
      return;
    }
    if (dashboard.entity === MetricCatalog.SERVICE) {
      pathNames.value.push([
        {
          name: dashboard.name,
          selected: true,
        },
      ]);
      return;
    }
    const serviceDashboards = dashboardStore.dashboards.filter(
      (d: DashboardItem) => MetricCatalog.SERVICE === d.entity && dashboard.layer === d.layer,
    );
    if (!serviceDashboards.length) {
      return;
    }

    const serviceId = route.params.serviceId;
    const list = serviceDashboards.map((d: DashboardItem, index: number) => {
      let path = `/dashboard/${d.layer}/${d.entity}/${d.name}`;
      if (serviceId) {
        path = `/dashboard/${d.layer}/${d.entity}/${serviceId}/${d.name}`;
      }
      const selected = index === 0;
      return {
        ...d,
        path,
        selected,
      };
    });
    pathNames.value.push(list);
    const podId = route.params.podId;
    if (dashboard.entity === MetricCatalog.ENDPOINT_RELATION) {
      const endpointDashboards = dashboardStore.dashboards.filter(
        (d: DashboardItem) => MetricCatalog.ENDPOINT === d.entity && dashboard.layer === d.layer,
      );
      const list = endpointDashboards.map((d: DashboardItem, index: number) => {
        let path = `/dashboard/${d.layer}/${d.entity}/${d.name}`;
        if (podId) {
          path = `/dashboard/${d.layer}/${d.entity}/${serviceId}/${podId}/${d.name}`;
        }
        const selected = index === 0;
        return {
          ...d,
          path,
          selected,
        };
      });

      pathNames.value.push(list);
    }
    const destServiceId = route.params.destServiceId;
    if (dashboard.entity === MetricCatalog.SERVICE_INSTANCE_RELATION) {
      const serviceRelationDashboards = dashboardStore.dashboards.filter(
        (d: DashboardItem) => MetricCatalog.SERVICE_RELATION === d.entity && dashboard.layer === d.layer,
      );
      const list = serviceRelationDashboards.map((d: DashboardItem, index: number) => {
        let path = `/dashboard/${d.layer}/${d.entity}/${d.name}`;
        if (destServiceId) {
          path = `/dashboard/related/${d.layer}/${d.entity}/${serviceId}/${destServiceId}/${d.name}`;
        }
        const selected = index === 0;
        return {
          ...d,
          path,
          selected,
        };
      });
      pathNames.value.push(list);
    }
    if ([MetricCatalog.Process, MetricCatalog.PROCESS_RELATION].includes(dashboard.entity as MetricCatalog)) {
      const InstanceDashboards = dashboardStore.dashboards.filter(
        (d: DashboardItem) => MetricCatalog.SERVICE_INSTANCE === d.entity && dashboard.layer === d.layer,
      );
      const list = InstanceDashboards.map((d: DashboardItem, index: number) => {
        let path = `/dashboard/${d.layer}/${d.entity}/${d.name}`;
        if (podId) {
          path = `/dashboard/${d.layer}/${d.entity}/${serviceId}/${podId}/${d.name}`;
        }
        const selected = index === 0;
        return {
          ...d,
          path,
          selected,
        };
      });

      pathNames.value.push(list);
    }
    pathNames.value.push([
      {
        name: dashboard.name,
        selected: true,
      },
    ]);
  }

  async function getVersion() {
    const res = await appStore.fetchVersion();
    if (res.errors) {
      ElMessage.error(res.errors);
    }
  }

  function resetDuration() {
    const { duration } = route.params as { duration: string };
    if (duration) {
      const d = JSON.parse(duration);

      appStore.updateDurationRow({
        start: new Date(d.start),
        end: new Date(d.end),
        step: d.step,
      });
      appStore.updateUTC(d.utc);
    }
  }

  function updateNavTitle() {
    const key = String(route.meta.i18nKey);
    pageTitle.value = te(key) ? t(key) : String(route.meta.title);
  }

  watch(
    () => [dashboardStore.currentDashboard, route.name],
    () => {
      getNavPaths();
    },
  );
</script>
<style lang="scss" scoped>
  .nav-bar {
    padding: 5px;
    text-align: left;
    justify-content: space-between;
    background-color: $theme-background;
    border-bottom: 1px solid $border-color;
    color: $font-color;
    font-size: $font-size-smaller;
  }

  .title {
    font-size: $font-size-normal;
    font-weight: 500;
    padding-top: 5px;
  }

  .nav-tabs {
    padding: 10px;
  }

  .name {
    display: inline-block;
    max-width: 250px;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
  }
</style>
