Remove project asset storage implementation

src/assets/project-asset-storage.ts

@@ -1,187 +0,0 @@
-export interface ProjectAssetStorageRecord {
-  bytes: ArrayBuffer;
-  mimeType: string;
-}
-
-export interface ProjectAssetStorage {
-  getAsset(storageKey: string): Promise<ProjectAssetStorageRecord | null>;
-  putAsset(storageKey: string, asset: ProjectAssetStorageRecord): Promise<void>;
-  deleteAsset(storageKey: string): Promise<void>;
-}
-
-export interface ProjectAssetStorageAccessResult {
-  storage: ProjectAssetStorage | null;
-  diagnostic: string | null;
-}
-
-const PROJECT_ASSET_DATABASE_NAME = "webeditor3d-project-assets";
-const PROJECT_ASSET_DATABASE_VERSION = 1;
-const PROJECT_ASSET_OBJECT_STORE_NAME = "assets";
-
-function cloneArrayBuffer(bytes: ArrayBuffer): ArrayBuffer {
-  return bytes.slice(0);
-}
-
-function getErrorDetail(error: unknown): string {
-  if (error instanceof Error && error.message.trim().length > 0) {
-    return error.message.trim();
-  }
-
-  return "Unknown error.";
-}
-
-function formatDiagnostic(prefix: string, error: unknown): string {
-  return `${prefix} ${getErrorDetail(error)}`;
-}
-
-function promisifyRequest<T>(request: IDBRequest<T>): Promise<T> {
-  return new Promise<T>((resolve, reject) => {
-    request.addEventListener("success", () => {
-      resolve(request.result);
-    });
-    request.addEventListener("error", () => {
-      reject(request.error ?? new Error("IndexedDB request failed."));
-    });
-  });
-}
-
-function openIndexedDb(): Promise<IDBDatabase> {
-  return new Promise<IDBDatabase>((resolve, reject) => {
-    const request = indexedDB.open(PROJECT_ASSET_DATABASE_NAME, PROJECT_ASSET_DATABASE_VERSION);
-
-    request.addEventListener("upgradeneeded", () => {
-      const database = request.result;
-
-      if (!database.objectStoreNames.contains(PROJECT_ASSET_OBJECT_STORE_NAME)) {
-        database.createObjectStore(PROJECT_ASSET_OBJECT_STORE_NAME);
-      }
-    });
-
-    request.addEventListener("success", () => {
-      resolve(request.result);
-    });
-
-    request.addEventListener("error", () => {
-      reject(request.error ?? new Error("IndexedDB open failed."));
-    });
-  });
-}
-
-class IndexedDbProjectAssetStorage implements ProjectAssetStorage {
-  private readonly databasePromise: Promise<IDBDatabase>;
-
-  constructor(databasePromise: Promise<IDBDatabase>) {
-    this.databasePromise = databasePromise;
-  }
-
-  private async withStore<T>(mode: IDBTransactionMode, callback: (store: IDBObjectStore) => IDBRequest<T>): Promise<T> {
-    const database = await this.databasePromise;
-    const transaction = database.transaction(PROJECT_ASSET_OBJECT_STORE_NAME, mode);
-    const store = transaction.objectStore(PROJECT_ASSET_OBJECT_STORE_NAME);
-    const result = await promisifyRequest(callback(store));
-
-    await new Promise<void>((resolve, reject) => {
-      transaction.addEventListener("complete", () => resolve());
-      transaction.addEventListener("error", () => reject(transaction.error ?? new Error("IndexedDB transaction failed.")));
-      transaction.addEventListener("abort", () => reject(transaction.error ?? new Error("IndexedDB transaction aborted.")));
-    });
-
-    return result;
-  }
-
-  async getAsset(storageKey: string): Promise<ProjectAssetStorageRecord | null> {
-    const database = await this.databasePromise;
-    const transaction = database.transaction(PROJECT_ASSET_OBJECT_STORE_NAME, "readonly");
-    const store = transaction.objectStore(PROJECT_ASSET_OBJECT_STORE_NAME);
-    const result = await promisifyRequest<ProjectAssetStorageRecord | undefined>(store.get(storageKey));
-
-    return result === undefined ? null : { bytes: cloneArrayBuffer(result.bytes), mimeType: result.mimeType };
-  }
-
-  async putAsset(storageKey: string, asset: ProjectAssetStorageRecord): Promise<void> {
-    await this.withStore("readwrite", (store) =>
-      store.put(
-        {
-          bytes: cloneArrayBuffer(asset.bytes),
-          mimeType: asset.mimeType
-        },
-        storageKey
-      )
-    );
-  }
-
-  async deleteAsset(storageKey: string): Promise<void> {
-    await this.withStore("readwrite", (store) => store.delete(storageKey));
-  }
-}
-
-class InMemoryProjectAssetStorage implements ProjectAssetStorage {
-  private readonly values = new Map<string, ProjectAssetStorageRecord>();
-
-  constructor(initialValues: Record<string, ProjectAssetStorageRecord> = {}) {
-    for (const [storageKey, asset] of Object.entries(initialValues)) {
-      this.values.set(storageKey, {
-        bytes: cloneArrayBuffer(asset.bytes),
-        mimeType: asset.mimeType
-      });
-    }
-  }
-
-  async getAsset(storageKey: string): Promise<ProjectAssetStorageRecord | null> {
-    const asset = this.values.get(storageKey);
-
-    if (asset === undefined) {
-      return null;
-    }
-
-    return {
-      bytes: cloneArrayBuffer(asset.bytes),
-      mimeType: asset.mimeType
-    };
-  }
-
-  async putAsset(storageKey: string, asset: ProjectAssetStorageRecord): Promise<void> {
-    this.values.set(storageKey, {
-      bytes: cloneArrayBuffer(asset.bytes),
-      mimeType: asset.mimeType
-    });
-  }
-
-  async deleteAsset(storageKey: string): Promise<void> {
-    this.values.delete(storageKey);
-  }
-}
-
-export function createInMemoryProjectAssetStorage(initialValues: Record<string, ProjectAssetStorageRecord> = {}): ProjectAssetStorage {
-  return new InMemoryProjectAssetStorage(initialValues);
-}
-
-export async function getBrowserProjectAssetStorageAccess(): Promise<ProjectAssetStorageAccessResult> {
-  if (typeof window === "undefined") {
-    return {
-      storage: null,
-      diagnostic: null
-    };
-  }
-
-  if (typeof indexedDB === "undefined") {
-    return {
-      storage: null,
-      diagnostic: "IndexedDB is unavailable in this browser environment."
-    };
-  }
-
-  try {
-    const databasePromise = openIndexedDb();
-    await databasePromise;
-    return {
-      storage: new IndexedDbProjectAssetStorage(databasePromise),
-      diagnostic: null
-    };
-  } catch (error) {
-    return {
-      storage: null,
-      diagnostic: formatDiagnostic("Project asset storage could not be opened.", error)
-    };
-  }
-}