import { SpriteBatch } from "./SpriteBatch.js";
import { RegistryData, RunKey } from "../ecs/batchUtils.js";
import { World } from "koota";
//#region src/pipeline/batchQuery.d.ts
/**
 * Opaque batch classification token. The underlying ECS trait never
 * leaks — the Koota dependency stays swappable behind this facade.
 */
interface BatchQueryTag {
  readonly __flBatchTag?: true;
}
/** Batch classification: material alpha-blends (`transparent`, no alphaTest). */
declare const IsAlphaBlendedBatch: BatchQueryTag;
/** Batch classification: material alpha-tests (`alphaTest > 0`, opaque fast path). */
declare const IsAlphaTestedBatch: BatchQueryTag;
/** Batch classification: material carries a lighting colorTransform. */
declare const IsLitBatch: BatchQueryTag;
/** Batch classification: material is unlit. */
declare const IsUnlitBatch: BatchQueryTag;
/**
 * Read-only view over a world's batches: a `Map<RunKey, SpriteBatch[]>`
 * with a classification query —
 *
 * ```ts
 * const lit = group.batches.where(IsLitBatch)
 * ```
 *
 * Trait existence is the architectural fact; system implementations may
 * evolve from branch → query-narrowing as workload demands without
 * breaking this surface.
 */
declare class BatchQueryView extends Map<RunKey, SpriteBatch[]> {
  private _world;
  constructor(world: World | null, entries?: Iterable<readonly [RunKey, SpriteBatch[]]>);
  /** All batches currently tagged with the given classification. */
  where(tag: BatchQueryTag): SpriteBatch[];
}
/**
 * Build a {@link BatchQueryView} from a world's registry data, keyed by
 * run key. Shared by `SpriteGroup.batches` and `Registry.batches` so the
 * run → mesh-list traversal has exactly one implementation.
 */
declare function buildBatchQueryView(world: World | null, registryData: RegistryData | null): BatchQueryView;
//#endregion
export { BatchQueryTag, BatchQueryView, IsAlphaBlendedBatch, IsAlphaTestedBatch, IsLitBatch, IsUnlitBatch, buildBatchQueryView };
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