import type { LODCacheRecord } from "./lod";
import type { SimulationCacheManifestIR } from "./simulation-cache";
import type { ErrorCode } from "./error";

export interface StorageSmokeResult {
  backend: "indexeddb";
  opfsAvailable: boolean;
  rowCount: number;
  persisted: boolean;
  schemaVersion: number;
  stores: string[];
}

export interface StorageInfoResult {
  backend: "indexeddb";
  opfsAvailable: boolean;
  schemaVersion: number;
  stores: string[];
}

export interface StorageProjectResult {
  projectId: string;
  scenePath: string;
  directories: string[];
}

export interface StorageSaveResult {
  projectId: string;
  bytes: number;
  revision: number;
  persisted: boolean;
  backend: "opfs" | "indexeddb";
  scenePath: string;
  sha256: string;
}

export interface StorageRecoveryResult {
  projectId: string;
  status: "clean" | "recovered" | "missing";
  recovered: boolean;
  backend: "opfs" | "indexeddb";
  revision?: number;
  bytes?: number;
  sha256?: string;
}

export interface StorageProjectReadResult {
  projectId: string;
  revision: number;
  bytes: number;
  sha256: string;
  backend: "opfs" | "indexeddb";
  recovered: boolean;
  buffer: ArrayBuffer;
}

export interface StorageOperationResult {
  id: string;
  projectId: string;
  revision: number;
  persisted: boolean;
}

export interface StorageOperationRecord {
  id: string;
  projectId: string;
  revision: number;
  payload: unknown;
  inversePayload?: unknown;
  createdAt: string;
}

export interface StorageOperationListResult {
  projectId: string;
  afterRevision: number;
  operations: StorageOperationRecord[];
  quarantined: number;
}

export interface StorageOperationPruneResult {
  projectId: string;
  throughRevision: number;
  removed: number;
}

export interface StorageSnapshotRecord {
  projectId: string;
  revision: number;
  bytes: number;
  sha256: string;
  createdAt: string;
}

export interface StorageSnapshotResult extends StorageSnapshotRecord { persisted: boolean; }
export interface StorageSnapshotListResult { projectId: string; snapshots: StorageSnapshotRecord[]; }
export interface StorageSnapshotReadResult extends StorageSnapshotRecord { buffer: ArrayBuffer; }

export interface StorageAssetRecord {
  assetId: string;
  projectId: string;
  sha256: string;
  bytes: number;
  mimeType: string;
  sourcePath?: string;
  path: string;
  createdAt: string;
  lastAccessAt: string;
}

export interface StorageAssetPutResult extends StorageAssetRecord {
  persisted: boolean;
  deduplicated: boolean;
}

export interface StorageAssetReadResult {
  asset: StorageAssetRecord;
  data: ArrayBuffer;
}

export interface StorageAssetListResult {
  projectId: string;
  assets: StorageAssetRecord[];
}

export interface StorageLODResult {
  projectId: string;
  cacheKey: string;
  bytes: number;
  persisted: boolean;
  path: string;
}

export interface StorageLODManifestResult {
  projectId: string;
  cacheKey: string;
  persisted: boolean;
  manifest?: LODCacheRecord;
}

export interface StorageLODManifestListResult {
  projectId: string;
  manifests: LODCacheRecord[];
}

export interface StorageLODReadResult {
  projectId: string;
  cacheKey: string;
  data: ArrayBuffer;
  bytes: number;
}

export interface StorageLODPruneResult {
  projectId: string;
  maxBytes: number;
  removed: number;
  bytes: number;
  cacheKeys: string[];
}

export interface StorageSimulationCacheResult {
  projectId: string;
  cacheKey: string;
  persisted: boolean;
  manifest: SimulationCacheManifestIR;
  path: string;
}

export interface StorageSimulationCacheReadResult extends StorageSimulationCacheResult {
  data: ArrayBuffer;
}

export interface StorageSimulationCacheFrameReadResult extends StorageSimulationCacheResult {
  frame: number;
  byteOffset: number;
  byteLength: number;
  data: ArrayBuffer;
}

export interface StorageSimulationCacheListResult {
  projectId: string;
  caches: Array<{
    cacheKey: string;
    manifest: SimulationCacheManifestIR;
    path: string;
    createdAt: string;
  }>;
}

export interface StorageRequest {
  requestId: string;
  command:
    | { type: "smoke" }
    | { type: "info" }
    | { type: "ensureProject"; projectId: string }
    | { type: "saveProject"; projectId: string; revision: number; buffer: ArrayBuffer; faultAt?: "after-stage" | "after-scene-commit" | "quota" }
    | { type: "recoverProject"; projectId: string }
    | { type: "readProject"; projectId: string }
    | { type: "appendOperation"; id: string; projectId: string; revision: number; payload: unknown; inversePayload?: unknown }
    | { type: "listOperations"; projectId: string; afterRevision: number }
    | { type: "pruneOperations"; projectId: string; throughRevision: number }
    | { type: "saveSnapshot"; projectId: string; revision: number; buffer: ArrayBuffer; maxCount?: number; maxBytes?: number }
    | { type: "listSnapshots"; projectId: string }
    | { type: "readSnapshot"; projectId: string; revision: number }
    | { type: "putAsset"; projectId: string; data: ArrayBuffer; mimeType: string; sourcePath?: string }
    | { type: "readAsset"; projectId: string; sha256: string }
    | { type: "listAssets"; projectId: string }
    | { type: "saveLOD"; projectId: string; cacheKey: string; data: ArrayBuffer }
    | { type: "putLODManifest"; projectId: string; manifest: LODCacheRecord }
    | { type: "getLODManifest"; projectId: string; cacheKey: string }
    | { type: "listLODManifests"; projectId: string }
    | { type: "readLOD"; projectId: string; cacheKey: string }
    | { type: "deleteLOD"; projectId: string; cacheKey: string }
    | { type: "pruneLOD"; projectId: string; maxBytes: number }
    | { type: "putSimulationCache"; projectId: string; manifest: SimulationCacheManifestIR; data: ArrayBuffer }
    | { type: "readSimulationCache"; projectId: string; cacheKey: string }
    | { type: "readSimulationCacheFrame"; projectId: string; cacheKey: string; frame: number }
    | { type: "listSimulationCaches"; projectId: string };
}

export interface StorageResponse {
  requestId: string;
  ok: boolean;
  result?: StorageSmokeResult | StorageInfoResult | StorageProjectResult | StorageSaveResult | StorageRecoveryResult | StorageProjectReadResult | StorageOperationResult | StorageOperationListResult | StorageOperationPruneResult | StorageSnapshotResult | StorageSnapshotListResult | StorageSnapshotReadResult | StorageAssetPutResult | StorageAssetReadResult | StorageAssetListResult | StorageLODResult | StorageLODManifestResult | StorageLODManifestListResult | StorageLODReadResult | StorageLODPruneResult | StorageSimulationCacheResult | StorageSimulationCacheReadResult | StorageSimulationCacheFrameReadResult | StorageSimulationCacheListResult;
  error?: string;
  errorCode?: ErrorCode;
}