<script lang="ts">
  import {afterNavigate, goto} from '$app/navigation';
  import {page} from '$app/stores';
  import ImageThumbnail from '$lib/components/assets/thumbnail/image-thumbnail.svelte';
  import EditNameInput from '$lib/components/faces-page/edit-name-input.svelte';
  import AddToAlbum from '$lib/components/photos-page/actions/add-to-album.svelte';
  import ArchiveAction from '$lib/components/photos-page/actions/archive-action.svelte';
  import CreateSharedLink from '$lib/components/photos-page/actions/create-shared-link.svelte';
  import DeleteAssets from '$lib/components/photos-page/actions/delete-assets.svelte';
  import DownloadAction from '$lib/components/photos-page/actions/download-action.svelte';
  import FavoriteAction from '$lib/components/photos-page/actions/favorite-action.svelte';
  import AssetSelectContextMenu from '$lib/components/photos-page/asset-select-context-menu.svelte';
  import AssetSelectControlBar from '$lib/components/photos-page/asset-select-control-bar.svelte';
  import ControlAppBar from '$lib/components/shared-components/control-app-bar.svelte';
  import GalleryViewer from '$lib/components/shared-components/gallery-viewer/gallery-viewer.svelte';
  import SelectAll from 'svelte-material-icons/SelectAll.svelte';
  import {AppRoute} from '$lib/constants';
  import {handleError} from '$lib/utils/handle-error';
  import {AssetResponseDto, api} from '@api';
  import ArrowLeft from 'svelte-material-icons/ArrowLeft.svelte';
  import DotsVertical from 'svelte-material-icons/DotsVertical.svelte';
  import Plus from 'svelte-material-icons/Plus.svelte';
  import type {PageData} from './$types';
  import {archivedAsset} from "$lib/stores/archived-asset.store";
  import CircleIconButton from "$lib/components/elements/buttons/circle-icon-button.svelte";

  export let data: PageData;

  let isEditName = false;
  let previousRoute: string = AppRoute.EXPLORE;
  let selectedAssets: Set<AssetResponseDto> = new Set();
  $: isMultiSelectionMode = selectedAssets.size > 0;
  $: isAllArchive = Array.from(selectedAssets).every((asset) => asset.isArchived);
  $: isAllFavorite = Array.from(selectedAssets).every((asset) => asset.isFavorite);

  afterNavigate(({from}) => {
    // Prevent setting previousRoute to the current page.
    if (from && from.route.id !== $page.route.id) {
      previousRoute = from.url.href;
    }
  });

  const handleNameChange = async (name: string) => {
    try {
      isEditName = false;
      data.person.name = name;
      await api.personApi.updatePerson({id: data.person.id, personUpdateDto: {name}});
    } catch (error) {
      handleError(error, 'Unable to save name');
    }
  };

  const onAssetDelete = (assetId: string) => {
    data.assets = data.assets.filter((asset: AssetResponseDto) => asset.id !== assetId);
  };
  const handleSelectAll = () => {
    selectedAssets = new Set(data.assets)
  }
</script>

{#if isMultiSelectionMode}
  <AssetSelectControlBar assets={selectedAssets} clearSelect={() => (selectedAssets = new Set())}>
    <CreateSharedLink/>
    <CircleIconButton title="Select all" logo={SelectAll} on:click={handleSelectAll}/>
    <AssetSelectContextMenu icon={Plus} title="Add">
      <AddToAlbum/>
      <AddToAlbum shared/>
    </AssetSelectContextMenu>
    <DeleteAssets {onAssetDelete}/>
    <AssetSelectContextMenu icon={DotsVertical} title="Add">
      <DownloadAction menuItem/>
      <FavoriteAction menuItem removeFavorite={isAllFavorite}/>
      <ArchiveAction
        menuItem
        unarchive={isAllArchive}
        onAssetArchive={(asset) => onAssetDelete(asset.id)}
      />
    </AssetSelectContextMenu>
  </AssetSelectControlBar>
{:else}
  <ControlAppBar
    showBackButton
    backIcon={ArrowLeft}
    on:close-button-click={() => goto(previousRoute)}
  />
{/if}

<!-- Face information block -->
<section class="pt-24 px-4 sm:px-6 flex place-items-center">
  {#if isEditName}
    <EditNameInput
      person={data.person}
      on:change={(event) => handleNameChange(event.detail)}
      on:cancel={() => (isEditName = false)}
    />
  {:else}
    <ImageThumbnail
      circle
      shadow
      url={api.getPeopleThumbnailUrl(data.person.id)}
      altText={data.person.name}
      widthStyle="3.375rem"
      heightStyle="3.375rem"
    />
    <button
      title="Edit name"
      class="px-4 text-immich-primary dark:text-immich-dark-primary"
      on:click={() => (isEditName = true)}
    >
      {#if data.person.name}
        <p class="font-medium py-2">{data.person.name}</p>
      {:else}
        <p class="font-medium w-fit">Add a name</p>
        <p class="text-sm text-gray-500 dark:text-immich-gray">
          Find them fast by name with search
        </p>
      {/if}
    </button>
  {/if}
</section>

<!-- Gallery Block -->
<section class="relative pt-8 sm:px-4 mb-12 bg-immich-bg dark:bg-immich-dark-bg">
  <section class="overflow-y-auto relative immich-scrollbar">
    <section id="search-content" class="relative bg-immich-bg dark:bg-immich-dark-bg">
      <GalleryViewer
        assets={data.assets}
        viewFrom="search-page"
        showArchiveIcon={true}
        bind:selectedAssets
      />
    </section>
  </section>
</section>
