<!-- 
// Copyright © 2022 Hardcore Engineering Inc.
// 
// Licensed under the Eclipse Public 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 https://www.eclipse.org/legal/epl-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.
-->
<script lang="ts">
  import { Ref, SortingOrder, WithLookup } from '@hcengineering/core'
  import { createQuery } from '@hcengineering/presentation'
  import { Issue, IssueStatus, Team } from '@hcengineering/tracker'
  import { Scroller, Spinner } from '@hcengineering/ui'
  import Expandable from '@hcengineering/ui/src/components/Expandable.svelte'
  import tracker from '../../../plugin'
  import EstimationSubIssueList from './EstimationSubIssueList.svelte'

  export let issue: Issue
  export let teams: Map<Ref<Team>, Team>
  export let issueStatuses: Map<Ref<Team>, WithLookup<IssueStatus>[]>

  const subIssuesQuery = createQuery()

  let subIssues: Issue[] | undefined

  $: hasSubIssues = issue.subIssues > 0
  $: subIssuesQuery.query(tracker.class.Issue, { attachedTo: issue._id }, async (result) => (subIssues = result), {
    sort: { estimation: SortingOrder.Descending }
  })
  $: total = (subIssues ?? []).reduce((a, b) => a + b.estimation, 0)
</script>

{#if subIssues && issueStatuses}
  {#if hasSubIssues}
    <Expandable label={tracker.string.ChildEstimation}>
      <svelte:fragment slot="title">
        : {total}
      </svelte:fragment>
      <div class="h-50">
        <Scroller>
          <EstimationSubIssueList issues={subIssues} {teams} />
        </Scroller>
      </div>
    </Expandable>
  {/if}
{:else}
  <div class="flex-center pt-3">
    <Spinner />
  </div>
{/if}
