import type * as HydraDB from "../index.js";
/**
 * AppSearchFusion is the diagnostic block of the query_apps fusion
 * (PRO-1882): per-chunk lane attribution and counts. Present only when
 * query_apps was on, the request was not ACL-scoped, and attributed chunks
 * survived final filtering. Identifier maps cover only returned chunks.
 */
export interface SearchAppSearchFusionDiagnostics {
    /**
     * AppRecipes maps the chunk_uuid of each final chunk the app lane returned to
     * the recipe that produced it (exact_id, recall, dated, bm25, broad, ...),
     * including chunks the normal lane also had, so a consensus can be
     * attributed to a recipe.
     */
    appRecipes?: Record<string, string>;
    /**
     * ChunkOrigins maps every returned chunk_uuid to where the fusion placed it
     * from: "normal" (normal lane only), "both" (both lanes, normal position
     * kept), "exact_id" (promoted from the app lane's exact-identifier
     * recipe), "app_tail" (appended from the app lane).
     */
    chunkOrigins?: Record<string, string>;
    /** Counts for the first or only fusion pass before postprocessing, not final response counts or totals across alias alternatives. The entire diagnostic block is omitted for ACL-scoped requests. */
    stats?: HydraDB.SearchAppSearchFusionStats;
    /**
     * StatsByPass preserves each independent fusion's accounting when results
     * combine multiple passes, in merge order (original before alternate when
     * both have diagnostics). Counts overlap; they are not unique totals.
     */
    statsByPass?: HydraDB.SearchAppSearchFusionStats[];
}