import type{LyraEventDetailSnapshot}from'../../../internal/lyra-element.js';import{type TemplateResult}from'lit';import type{RetrievalChunk}from'../../../ai/types.js';import{LyraElement}from'../../../internal/lyra-element.js';import'../../overlays/empty/empty.class.js';export interface RetrievalComparisonSet{id:string;label:string;chunks:RetrievalChunk[];}export interface LyraRetrievalCompareEventMap{'lr-chunk-select':CustomEvent<LyraEventDetailSnapshot<{setId:string;chunk:RetrievalChunk;}>>;}
/**
* `<lr-retrieval-compare>` — a side-by-side retrieval/reranking workbench that makes rank,
* overlap, and dense/sparse/rerank/final score changes inspectable. It never performs retrieval.
*
* Public collection properties take bounded, clone-owned readonly snapshots. Create a new
* collection and reassign it after changes; mutating the assigned array does not update the view.
* Blank set ids and later duplicates are ignored before overlap, rendering, or activation. Within
* each retained set, blank chunk ids and later duplicates are likewise ignored. First records win.
*
* @customElement lr-retrieval-compare
* @event lr-chunk-select - A result was activated. `detail: { setId, chunk }`.
* @csspart base - The named comparison region.
* @csspart overlap - The pairwise top-k Jaccard overlap summary.
* @csspart sets - Horizontally scrollable set grid.
* @csspart set - One result-set column.
* @csspart set-heading - A caller-supplied result-set label.
* @csspart chunks - One ranked list.
* @csspart chunk - A selectable chunk row.
* @csspart chunk-selected - The selected chunk row.
* @csspart chunk-rank - The effective rank.
* @csspart chunk-title - The source title.
* @csspart chunk-text - Retrieved text.
* @csspart scores - Score-breakdown list.
* @csspart score - One named score.
* @csspart empty - The empty state.
* @cssprop [--lr-retrieval-compare-selected-border=var(--lr-color-brand)] - Border color marking
*   a selected `[part~="chunk"]` row.
* @status stable
* @since 7.0.0
*/
export declare class LyraRetrievalCompare extends LyraElement<LyraRetrievalCompareEventMap>{protected static readonly ownedCollectionProperties:readonly string[];static styles:import("lit").CSSResultGroup[];protected static readonly immutableEventDetails:readonly string[];
/** Named retrieval result sets rendered side by side. */
sets:readonly RetrievalComparisonSet[];
/** Maximum ranked chunks shown from each set after stable score ordering. */
topK:number;
/** Controlled chunk id highlighted across every set that contains it. */
selectedChunkId:string;
/** Fallback name for the comparison region. Omitting it falls back to a localized default; an
*  explicit empty string clears it. A non-empty host `aria-label` makes the host the sole
*  overall owner; an explicitly empty host label stays empty on the region. */
label?:string;private readonly headingIdPrefix;private get effectiveTopK();private get normalizedSets();private orderedChunks;private rank;private formatScore;private overlaps;private scoreEntries;private renderSet;render():TemplateResult;}declare global{interface HTMLElementTagNameMap{'lr-retrieval-compare':LyraRetrievalCompare;}}