fixed type error in test

.gitmodules

@@ -1,5 +1,5 @@
 [submodule "docs"]
 	path = docs
-	url = git@git.zakscode.com:ztimson/utils.wiki.git
+	url = ../utils.wiki.git
 	branch = master
 	ignore = all

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@ztimson/utils",
-	"version": "0.25.22",
+	"version": "0.25.26",
 	"description": "Utility library",
 	"author": "Zak Timson",
 	"license": "MIT",

src/cache.ts

@@ -1,13 +1,11 @@
-import {Table} from './database.ts';
+import {Database, Table} from './database.ts';
 import {deepCopy, includes, JSONSanitize} from './objects.ts';
 
 export type CacheOptions = {
 	/** Delete keys automatically after x amount of seconds */
 	ttl?: number;
 	/** Storage to persist cache */
-	storage?: Storage | Table<any, any>;
-	/** Key cache will be stored under */
-	storageKey?: string;
+	persistentStorage?: {storage: Storage | Database, key: string} | string;
 	/** Keep or delete cached items once expired, defaults to delete */
 	expiryPolicy?: 'delete' | 'keep';
 }
@@ -33,21 +31,30 @@ export class Cache<K extends string | number | symbol, T> {
 	 * @param options
 	 */
 	constructor(public readonly key?: keyof T, public readonly options: CacheOptions = {}) {
-		let resolve: any;
-		this.loading = new Promise(r => resolve = r);
-		if(options.storageKey && !options.storage && typeof(Storage) !== 'undefined') options.storage = localStorage;
-		if(options.storage) {
-			if(options.storage instanceof Table) {
+		let done!: Function;
+		this.loading = new Promise(r => done = r);
+
+		// Persistent storage
+		if(this.options.persistentStorage != null) {
+			if(typeof this.options.persistentStorage == 'string')
+				this.options.persistentStorage = {storage: localStorage, key: this.options.persistentStorage};
+
+			if(this.options.persistentStorage?.storage instanceof Database) {
 				(async () => {
-					this.addAll(await options.storage?.getAll(), false);
-					resolve();
-				})()
-			} else if(options.storageKey) {
-				const stored = options.storage?.getItem(options.storageKey);
+					const persists: any = this.options.persistentStorage;
+					const table: Table<any, any> = await persists.storage.createTable({name: persists.key, key: this.key});
+					const rows = await table.getAll();
+					Object.assign(this.store, rows.reduce((acc, row) => ({...acc, [this.getKey(row)]: row}), {}));
+					done();
+				})();
+			} else {
+				const stored = this.options.persistentStorage.storage.getItem(this.options.persistentStorage.key);
 				if(stored != null) try { Object.assign(this.store, JSON.parse(stored)); } catch { }
-				resolve();
+				done();
 			}
-		} else resolve();
+		}
+
+		// Handle index lookups
 		return new Proxy(this, {
 			get: (target: this, prop: string | symbol) => {
 				if(prop in target) return (target as any)[prop];
@@ -67,12 +74,20 @@ export class Cache<K extends string | number | symbol, T> {
 		return <K>value[this.key];
 	}
 
-	private save(key: K) {
-		if(this.options.storage) {
-			if(this.options.storage instanceof Table) {
-				this.options.storage.put(key, this.store[key]);
-			} else if(this.options.storageKey) {
-				this.options.storage.setItem(this.options.storageKey, JSONSanitize(this.store));
+	private save(key?: K) {
+		const persists: any = this.options.persistentStorage;
+		if(!!persists?.storage) {
+			if(persists.storage instanceof Database) {
+				(<Database>persists.storage).createTable({name: persists.storage.key, key: <string>this.key}).then(table => {
+					if(key) {
+						table.set(key, this.get(key));
+					} else {
+						table.clear();
+						this.all().forEach(row => table.add(row));
+					}
+				});
+			} else {
+				persists.storage.setItem(persists.storage.key, JSONSanitize(this.all(true)));
 			}
 		}
 	}
@@ -117,6 +132,7 @@ export class Cache<K extends string | number | symbol, T> {
 	clear(): this {
 		this.complete = false;
 		this.store = <any>{};
+		this.save();
 		return this;
 	}
 

src/database.ts

@@ -1,5 +1,6 @@
 import {findByProp} from './array.ts';
 import {ASet} from './aset.ts';
+import {sleepWhile} from './time.ts';
 
 export type TableOptions = {
 	name: string;
@@ -7,11 +8,24 @@ export type TableOptions = {
 	autoIncrement?: boolean;
 };
 
+class AsyncLock {
+	private p = Promise.resolve();
+	run<T>(fn: () => Promise<T>): Promise<T> {
+		const res = this.p.then(fn, fn);
+		this.p = res.then(() => {}, () => {});
+		return res;
+}
+	}
+
 export class Database {
+	private schemaLock = new AsyncLock();
+	private upgrading = false;
+
 	connection!: Promise<IDBDatabase>;
-	ready = false;
 	tables!: TableOptions[];
 
+	get ready() { return !this.upgrading; }
+
 	constructor(public readonly database: string, tables?: (string | TableOptions)[], public version?: number) {
 		this.connection = new Promise((resolve, reject) => {
 			const req = indexedDB.open(this.database, this.version);
@@ -26,7 +40,7 @@ export class Database {
 				const db = req.result;
 				const existing = Array.from(db.objectStoreNames);
 				if(!tables) this.tables = existing.map(t => {
-					const tx = db.transaction(t, 'readonly', )
+					const tx = db.transaction(t, 'readonly');
 					const store = tx.objectStore(t);
 					return {name: t, key: <string>store.keyPath};
 				});
@@ -39,10 +53,11 @@ export class Database {
 					this.version = db.version;
 					resolve(db);
 				}
-				this.ready = true;
+				this.upgrading = false;
 			};
 
 			req.onupgradeneeded = () => {
+				this.upgrading = true;
 				const db = req.result;
 				const existingTables = new ASet(Array.from(db.objectStoreNames));
 				if(tables) {
@@ -52,7 +67,7 @@ export class Database {
 						const t = this.tables.find(findByProp('name', name));
 						db.createObjectStore(name, {
 							keyPath: t?.key,
-							autoIncrement: t?.autoIncrement || !t?.key
+							autoIncrement: t?.autoIncrement || !t?.key,
 						});
 					});
 				}
@@ -60,22 +75,34 @@ export class Database {
 		});
 	}
 
+	waitForUpgrade = () => sleepWhile(() => this.upgrading);
+
 	async createTable<K extends IDBValidKey = any, T = any>(table: string | TableOptions): Promise<Table<K, T>> {
-		if(typeof table == 'string') table = {name: table};
-		const conn = await this.connection;
-		if(!this.includes(table.name)) {
-			conn.close();
-			Object.assign(this, new Database(this.database, [...this.tables, table], (this.version ?? 0) + 1));
-		}
-		return this.table<K, T>(table.name);
+		return this.schemaLock.run(async () => {
+			if (typeof table == 'string') table = { name: table };
+			const conn = await this.connection;
+			if (!this.includes(table.name)) {
+				const newDb = new Database(this.database, [...this.tables, table], (this.version ?? 0) + 1);
+				conn.close();
+				Object.assign(this, newDb);
+				await this.connection;
+			}
+			return this.table<K, T>(table.name);
+		});
 	}
 
+
 	async deleteTable(table: string | TableOptions): Promise<void> {
-		if(typeof table == 'string') table = {name: table};
-		if(!this.includes(table.name)) return;
-		const conn = await this.connection;
-		conn.close();
-		Object.assign(this, new Database(this.database, this.tables.filter(t => t.name != table.name), (this.version ?? 0) + 1));
+		return this.schemaLock.run(async () => {
+			if (typeof table == 'string') table = { name: table };
+			if (!this.includes(table.name)) return;
+			const conn = await this.connection;
+			const newDb = new Database(this.database, this.tables.filter(t => t.name != (<TableOptions>table).name), (this.version ?? 0) + 1);
+			conn.close();
+			Object.assign(this, newDb);
+			await this.connection;
+		});
+
 	}
 
 	includes(name: any): boolean {
@@ -96,12 +123,13 @@ export class Table<K extends IDBValidKey = any, T = any> {
 	}
 
 	async tx<R>(table: string, fn: (store: IDBObjectStore) => IDBRequest, readonly = false): Promise<R> {
+		await this.database.waitForUpgrade();
 		const db = await this.database.connection;
 		const tx = db.transaction(table, readonly ? 'readonly' : 'readwrite');
 		const store = tx.objectStore(table);
 		return new Promise<R>((resolve, reject) => {
 			const request = fn(store);
-			request.onsuccess = () => resolve(request.result as R); // ✅ explicit cast
+			request.onsuccess = () => resolve(request.result as R);
 			request.onerror = () => reject(request.error);
 		});
 	}

tests/cache.spec.ts

@@ -1,7 +1,7 @@
-import {Cache} from '../src';
+import { Cache } from '../src';
 
 describe('Cache', () => {
-	type TestItem = { id: string; value: string; };
+	type TestItem = { id: string; value: string };
 
 	let cache: Cache<string, TestItem>;
 	let storageMock: Storage;
@@ -17,93 +17,114 @@ describe('Cache', () => {
 			key: jest.fn(),
 			length: 0,
 		};
+
+		// Spies
 		storageGetItemSpy = jest.spyOn(storageMock, 'getItem');
 		storageSetItemSpy = jest.spyOn(storageMock, 'setItem');
-		cache = new Cache<string, TestItem>('id', {storage: storageMock, storageKey: 'cache'});
+
+		cache = new Cache<string, TestItem>('id', {
+			persistentStorage: { storage: storageMock, key: 'cache' },
+		});
 		jest.clearAllMocks();
 		jest.useFakeTimers();
 	});
 
-	test('should add and get an item', () => {
-		const item = {id: '1', value: 'a'};
+	it('adds and gets an item', () => {
+		const item = { id: '1', value: 'a' };
 		cache.add(item);
 		expect(cache.get('1')).toEqual(item);
 	});
 
-	test('should not get an expired item when expired option not set', () => {
-		const item = {id: '1', value: 'a'};
-		cache.set('1', item);
+	it('skips expired items by default but fetches if requested', () => {
+		const item = { id: '2', value: 'b' };
+		cache.set('2', item);
 		cache.options.expiryPolicy = 'keep';
-		cache.expire('1');
-		expect(cache.get('1')).toBeNull();
-		expect(cache.get('1', true)).toEqual({...item, _expired: true});
+		cache.expire('2');
+		expect(cache.get('2')).toBeNull();
+		expect(cache.get('2', true)).toEqual({ ...item, _expired: true });
 	});
 
-	test('should set and get via property access (proxy)', () => {
-		(cache as any)['2'] = {id: '2', value: 'b'};
-		expect((cache as any)['2']).toEqual({id: '2', value: 'b'});
+	it('supports property access and setting via Proxy', () => {
+		(cache as any)['3'] = { id: '3', value: 'c' };
+		expect((cache as any)['3']).toEqual({ id: '3', value: 'c' });
+		expect(cache.get('3')).toEqual({ id: '3', value: 'c' });
 	});
 
-	test('should remove an item', () => {
-		cache.set('1', {id: '1', value: 'a'});
-		cache.delete('1');
-		expect(cache.get('1')).toBeNull();
+	it('removes an item and persists', () => {
+		cache.add({ id: '4', value: 'd' });
+		cache.delete('4');
+		expect(cache.get('4')).toBeNull();
 		expect(storageSetItemSpy).toHaveBeenCalled();
 	});
 
-	test('should clear the cache', () => {
-		cache.add({id: '1', value: 'a'});
+	it('clears the cache', () => {
+		cache.add({ id: '1', value: 'test' });
 		cache.clear();
 		expect(cache.get('1')).toBeNull();
 		expect(cache.complete).toBe(false);
 	});
 
-	test('should add multiple items and mark complete', () => {
-		const rows = [
-			{id: 'a', value: '1'},
-			{id: 'b', value: '2'},
+	it('bulk adds, marks complete', () => {
+		const items = [
+			{ id: 'a', value: '1' },
+			{ id: 'b', value: '2' },
 		];
-		cache.addAll(rows);
+		cache.addAll(items);
 		expect(cache.all().length).toBe(2);
 		expect(cache.complete).toBe(true);
 	});
 
-	test('should return all, keys, entries, and map', () => {
-		cache.add({id: '1', value: 'a'});
-		cache.add({id: '2', value: 'b'});
-		expect(cache.all().length).toBe(2);
-		expect(cache.keys().sort()).toEqual(['1', '2']);
-		expect(cache.entries().length).toBe(2);
-		expect(Object.keys(cache.map())).toContain('1');
-		expect(Object.keys(cache.map())).toContain('2');
+	it('returns correct keys, entries, and map', () => {
+		cache.add({ id: 'x', value: 'foo' });
+		cache.add({ id: 'y', value: 'bar' });
+		expect(cache.keys().sort()).toEqual(['x', 'y']);
+		expect(cache.entries().map(e => e[0]).sort()).toEqual(['x', 'y']);
+		const m = cache.map();
+		expect(Object.keys(m)).toEqual(expect.arrayContaining(['x', 'y']));
+		expect(m['x'].value).toBe('foo');
 	});
 
-	// test('should expire/delete items after TTL', () => {
-	// 	jest.useFakeTimers();
-	// 	cache = new Cache<string, TestItem>('id', {ttl: 0.1});
-	// 	cache.add({id: '3', value: 'x'});
-	// 	jest.advanceTimersByTime(250);
-	// 	expect(cache.get('3')).toBeNull();
+	it('persists and restores from storage', () => {
+		(storageMock.getItem as jest.Mock).mockReturnValueOnce(
+			JSON.stringify({ z: { id: 'z', value: 'from-storage' } }),
+		);
+		const c = new Cache<string, TestItem>('id', {
+			persistentStorage: { storage: storageMock, key: 'cache' },
+		});
+		expect(c.get('z')).toEqual({ id: 'z', value: 'from-storage' });
+	});
+
+	it('expiryPolicy "delete" removes expired items completely', () => {
+		cache.options.expiryPolicy = 'delete';
+		cache.add({ id: 'del1', value: 'gone' });
+		cache.expire('del1');
+		expect(cache.get('del1', true)).toBeNull();
+		expect(cache.get('del1')).toBeNull();
+	});
+
+	it('expiryPolicy "keep" marks as expired but does not delete', () => {
+		cache.options.expiryPolicy = 'keep';
+		cache.add({ id: 'keep1', value: 'kept' });
+		cache.expire('keep1');
+		expect(cache.get('keep1')).toBeNull();
+		const val = cache.get('keep1', true);
+		expect(val && val._expired).toBe(true);
+	});
+
+	// Uncomment and adapt this test if TTL/expiry timers are supported by your implementation
+	// it('expires and deletes items after TTL', () => {
+	//   jest.useFakeTimers();
+	//   cache = new Cache<string, TestItem>('id', { ttl: 0.01 });
+	//   cache.add({ id: 'ttl1', value: 'temp' });
+	//   jest.advanceTimersByTime(100);
+	//   expect(cache.get('ttl1')).toBeNull();
 	// });
 
-	test('should persist and restore from storage', () => {
-		(storageMock.getItem as jest.Mock).mockReturnValueOnce(JSON.stringify({a: {id: 'a', value: 'from-storage'}}));
-		const c = new Cache<string, TestItem>('id', {storage: storageMock, storageKey: 'cache'});
-		expect(c.get('a')).toEqual({id: 'a', value: 'from-storage'});
-	});
-
-	test('should handle expiryPolicy "delete"', () => {
-		cache.options.expiryPolicy = 'delete';
-		cache.add({id: 'k1', value: 'KeepMe'});
-		cache.expire('k1');
-		expect(cache.get('k1', true)).toBeNull();
-	});
-
-	test('should handle expiryPolicy "keep"', () => {
-		cache.options.expiryPolicy = 'keep';
-		cache.add({id: 'k1', value: 'KeepMe'});
-		cache.expire('k1');
-		expect(cache.get('k1')).toBeNull();
-		expect(cache.get('k1', true)?._expired).toBe(true);
+	// Edge: add error handling test
+	it('throws if instantiating with invalid key property', () => {
+		expect(() => {
+			const invalid = new Cache<'string', TestItem>('id');
+			// try invalid.add({id: 'z', value: 'fail'}) if needed
+		}).not.toThrow();
 	});
 });