// THE BINDING between the shared search pipeline and this app's caches.
//
// Everything that used to live here — the three worker-pool drivers, the leaf
// adapter, the cue/text matchers — is `lib/search/leafPipeline.ts` now, where
// `lib/searchEval.ts` can reach it without `lib/` importing `components/`.
// What is left is the one thing that genuinely belongs to the view layer: WHICH
// FETCH. `fetchTranscript` / `fetchSubs` / `fetchPost` are the react-query-backed
// page caches, and they are supplied here rather than imported there.
//
// Every name this module exported before is still exported from it, so the five
// files that import `LayerHit` from `components/searchPipeline` (including
// `export/app/lib/askRetrieval.ts`) are untouched.

import { fetchTranscript } from "./transcriptCache";
import { fetchSubs } from "./subsCache";
import { fetchPost } from "./postsCache";
import {
  runLeafPipeline as runLeafPipelineWith,
  type LeafController,
  type LeafFetchers,
  type LeafPipelineOptions,
} from "../lib/search/leafPipeline";
import {
  cacheKey,
  getCached,
  getCachedSync,
  putCached,
} from "./searchLayerCache";
import type { SearchRuntime } from "../lib/searchEval";

export type {
  Hit,
  SubsHit,
  LayerHit,
  PipelineUpdate,
  PipelineController,
  SubsPipelineUpdate,
  LeafProgress,
  LeafResult,
  LeafController,
} from "../lib/search/leafPipeline";
export { filterSlugs } from "../lib/search/leafPipeline";

// This app's three fetches, as one injectable bundle.
const CACHE_FETCHERS: LeafFetchers = {
  transcript: fetchTranscript,
  subs: fetchSubs,
  post: fetchPost,
};

export function runLeafPipeline(
  opts: Omit<LeafPipelineOptions, "fetchers">,
): LeafController {
  return runLeafPipelineWith({ ...opts, fetchers: CACHE_FETCHERS });
}

// What `runQueryTree` is handed: the fetch-bound leaf runner plus the
// IndexedDB-backed layer memo. `lib/searchEval.ts` owns the tree algebra and
// knows nothing about either.
export const searchRuntime: SearchRuntime = {
  runLeaf: runLeafPipeline,
  cache: {
    key: cacheKey,
    getSync: getCachedSync,
    get: getCached,
    put: putCached,
  },
};