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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="item">
    <span class="label">{{ t("widget") }}</span>
    <Selector
      :multiple="true"
      :value="widgetIds"
      :options="widgets"
      size="small"
      placeholder="Select a widget"
      class="selectors"
      @change="updateWidgetConfig"
      :filterable="false"
    />
  </div>
</template>
<script lang="ts" setup>
  import { ref, computed } from "vue";
  import { useI18n } from "vue-i18n";
  import { useDashboardStore } from "@/store/modules/dashboard";
  import getDashboard from "@/hooks/useDashboardsSession";
  import type { Option } from "@/types/app";
  import type { DashboardItem, LayoutConfig } from "@/types/dashboard";

  const { t } = useI18n();
  const dashboardStore = useDashboardStore();
  const associate = dashboardStore.selectedGrid?.associate || [];
  const widgetIds = ref<string[]>(associate.map((d: { widgetId: string }) => d.widgetId));
  const widgets: any = computed(() => {
    const widgetList = getDashboard(dashboardStore.currentDashboard as DashboardItem).widgets;
    const items = [];
    for (const d of widgetList) {
      const isLinear = ["Bar", "Line", "Area"].includes((d.graph && d.graph.type) || "");
      if (isLinear && d.id && dashboardStore.selectedGrid?.id !== d.id) {
        items.push({ value: d.id, label: (d.widget && d.widget.name) || d.id });
      }
    }
    return items;
  });
  function updateWidgetConfig(options: Option[]) {
    const arr: any = getDashboard(dashboardStore.currentDashboard as DashboardItem).widgets;
    const opt = options.map((d: Option) => {
      return { widgetId: d.value };
    });
    const newVal = options.map((d: Option) => d.value);
    // add association options in the source widget
    const widget = {
      ...dashboardStore.selectedGrid,
      associate: opt,
    };
    dashboardStore.selectWidget({ ...widget } as LayoutConfig);

    // remove unuse association widget option
    for (const id of widgetIds.value) {
      if (!newVal.includes(id)) {
        const w = arr.find((d: { id: string }) => d.id === id);
        const config = {
          ...w,
          associate: [],
        };
        dashboardStore.setWidget(config);
      }
    }
    // add association options in target widgets
    for (let i = 0; i < opt.length; i++) {
      const item = JSON.parse(JSON.stringify(opt));
      item[i] = { widgetId: dashboardStore.selectedGrid?.id };
      const w = arr.find((d: { id: string }) => d.id === opt[i].widgetId);
      const config = {
        ...w,
        associate: item,
      };
      dashboardStore.setWidget(config);
    }
    widgetIds.value = newVal;
  }
</script>
<style lang="scss" scoped>
  .label {
    font-size: 13px;
    font-weight: 500;
    display: block;
    margin-bottom: 5px;
  }

  .input {
    width: 500px;
  }

  .item {
    margin-bottom: 10px;
  }

  .selectors {
    width: 500px;
  }
</style>
