<script lang="ts">
  // Renders search results as groups, in the user's configured order.
  //
  // Scope and order are composed as two independent axes (see
  // composeSearchGroups): out-of-scope groups drop out, the rest sort by the
  // saved order, and empty groups are omitted — the saved order itself is
  // never rewritten by scoping.
  //
  // TRACES: UR-050 | DR-067
  import type { MediaItem } from "$lib/api/types";
  import MediaCard from "$lib/components/library/MediaCard.svelte";
  import TrackList from "$lib/components/library/TrackList.svelte";
  import { searchGroupOrder } from "$lib/stores/searchGroupOrder";
  import { composeSearchGroups, type SearchScope } from "$lib/utils/searchScope";

  interface Props {
    results: MediaItem[];
    loading?: boolean;
    scope?: SearchScope;
    onItemClick?: (item: MediaItem) => void;
  }

  let { results, loading = false, scope = "all", onItemClick }: Props = $props();

  const groups = $derived(composeSearchGroups(results, scope, $searchGroupOrder));
</script>

{#if loading}
  <div class="flex justify-center py-12">
    <div
      class="w-8 h-8 border-2 border-[var(--color-jellyfin)] border-t-transparent rounded-full animate-spin"
    ></div>
  </div>
{:else if groups.length === 0}
  <div class="text-center py-12 text-gray-400">
    <svg class="w-16 h-16 mx-auto mb-4 text-gray-600" fill="currentColor" viewBox="0 0 24 24">
      <path d="M15.5 14h-.79l-.28-.27C15.41 12.59 16 11.11 16 9.5 16 5.91 13.09 3 9.5 3S3 5.91 3 9.5 5.91 16 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z"/>
    </svg>
    <p>No results found</p>
  </div>
{:else}
  <div class="space-y-8">
    {#each groups as group (group.id)}
      <div>
        <h2 class="text-2xl font-semibold text-white px-4 mb-3">
          {group.label} ({group.items.length})
        </h2>
        {#if group.id === "songs"}
          <TrackList tracks={group.items} />
        {:else}
          <div class="flex gap-4 overflow-x-auto scrollbar-hide px-4">
            {#each group.items as item (item.id)}
              <MediaCard
                {item}
                size="medium"
                showProgress={group.id !== "artists"}
                onclick={() => onItemClick?.(item)}
              />
            {/each}
          </div>
        {/if}
      </div>
    {/each}
  </div>
{/if}

<style>
  .scrollbar-hide::-webkit-scrollbar {
    display: none;
  }
  .scrollbar-hide {
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
</style>
