<!--
// Copyright © 2020, 2021 Anticrm Platform Contributors.
// Copyright © 2021 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 { Attachment } from '@hcengineering/attachment'
  import { Class, Data, Doc, DocumentQuery, Ref, Space } from '@hcengineering/core'
  import { Icon, Label, resizeObserver, Scroller, Spinner } from '@hcengineering/ui'
  import view, { BuildModelKey } from '@hcengineering/view'
  import { Table } from '@hcengineering/view-resources'
  import attachment from '../plugin'
  import AddAttachment from './AddAttachment.svelte'
  import AttachmentDroppable from './AttachmentDroppable.svelte'
  import IconAttachment from './icons/Attachment.svelte'
  import UploadDuo from './icons/UploadDuo.svelte'

  export let objectId: Ref<Doc>
  export let space: Ref<Space>
  export let _class: Ref<Class<Doc>>
  export let query: DocumentQuery<Doc> = {}
  export let attachmentClass: Ref<Class<Attachment>> = attachment.class.Attachment
  export let attachmentClassOptions: Partial<Data<Attachment>> = {}
  export let extraConfig: (BuildModelKey | string)[] = []
  export let readonly = false
  export let showHeader = true
  export let attachments: number | undefined = undefined

  let inputFile: HTMLInputElement
  let loading = 0
  let dragover = false
  let wSection: number
</script>

<div class="antiSection" use:resizeObserver={(element) => (wSection = element.clientWidth)}>
  <div class="antiSection-header">
    <div class="antiSection-header__icon">
      {#if showHeader}
        <Icon icon={IconAttachment} size={'small'} />
      {/if}
    </div>
    <span class="antiSection-header__title">
      {#if showHeader}
        <Label label={attachment.string.Attachments} />
      {/if}
    </span>
    <div class="buttons-group small-gap">
      {#if loading}
        <Spinner />
      {:else if !readonly}
        <AddAttachment
          bind:loading
          bind:inputFile
          objectClass={_class}
          {objectId}
          {space}
          {attachmentClass}
          {attachmentClassOptions}
        />
      {/if}
    </div>
  </div>

  {#if !loading && (attachments === null || attachments === 0) && !readonly}
    <AttachmentDroppable bind:loading bind:dragover objectClass={_class} {objectId} {space}>
      <div class="antiSection-empty attachments flex-col mt-3" class:solid={dragover}>
        <div class="flex-center content-accent-color">
          <UploadDuo size={'large'} />
        </div>
        <div class="text-sm dark-color" style:pointer-events="none">
          <Label label={attachment.string.NoAttachments} />
        </div>
        <!-- svelte-ignore a11y-click-events-have-key-events -->
        <div
          class="over-underline text-sm content-accent-color"
          style:pointer-events={dragover ? 'none' : 'all'}
          on:click={() => inputFile.click()}
        >
          <Label label={attachment.string.UploadDropFilesHere} />
        </div>
      </div>
    </AttachmentDroppable>
  {:else if wSection < 640}
    <Scroller horizontal>
      <Table
        _class={attachmentClass}
        config={[
          '',
          'description',
          {
            key: 'pinned',
            presenter: view.component.BooleanTruePresenter,
            label: attachment.string.Pinned,
            sortingKey: 'pinned'
          },
          ...extraConfig,
          'lastModified'
        ]}
        options={{ sort: { pinned: -1 } }}
        query={{ ...query, attachedTo: objectId }}
        loadingProps={{ length: attachments ?? 0 }}
        on:content={(evt) => {
          attachments = evt.detail.length
        }}
        {readonly}
      />
    </Scroller>
  {:else}
    <Table
      _class={attachmentClass}
      config={[
        '',
        'description',
        {
          key: 'pinned',
          presenter: view.component.BooleanTruePresenter,
          label: attachment.string.Pinned,
          sortingKey: 'pinned'
        },
        ...extraConfig,
        'lastModified'
      ]}
      options={{ sort: { pinned: -1 } }}
      query={{ ...query, attachedTo: objectId }}
      loadingProps={{ length: attachments ?? 0 }}
      on:content={(evt) => {
        attachments = evt.detail.length
      }}
      {readonly}
    />
  {/if}
</div>
