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Author SHA1 Message Date
c06538a725 Fixed word formatters
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2025-06-11 18:41:46 -04:00
a08b0c4eea Fixed database init loop
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2025-05-27 15:42:00 -04:00
1b03ae875b Fixed database includes
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2025-05-27 15:13:53 -04:00
af1da75a82 Removed console.log statments
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2025-05-27 14:56:24 -04:00
e19768688d Fixed using numbers as database table name
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2025-05-27 14:51:04 -04:00
6d706d4c15 Added database wrapper
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2025-05-25 23:02:56 -04:00
97f2bcce2e removed debugging line
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2025-05-15 16:47:35 -04:00
2a7fa18c0e Added indexdb wrapper & cache support for it
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2025-05-15 16:06:32 -04:00
7 changed files with 173 additions and 35 deletions

10
index.html Normal file
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@ -0,0 +1,10 @@
<html>
<body>
<script type="module">
import {Cache, Database} from './dist/index.mjs';
const db = new Database('test', [123]);
window['table'] = db.table(123);
</script>
</body>
</html>

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@ -1,6 +1,6 @@
{ {
"name": "@ztimson/utils", "name": "@ztimson/utils",
"version": "0.25.0", "version": "0.25.8",
"description": "Utility library", "description": "Utility library",
"author": "Zak Timson", "author": "Zak Timson",
"license": "MIT", "license": "MIT",
@ -31,6 +31,7 @@
}, },
"devDependencies": { "devDependencies": {
"@types/jest": "^29.5.12", "@types/jest": "^29.5.12",
"fake-indexeddb": "^6.0.1",
"jest": "^29.7.0", "jest": "^29.7.0",
"jest-junit": "^16.0.0", "jest-junit": "^16.0.0",
"ts-jest": "^29.1.2", "ts-jest": "^29.1.2",

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@ -1,10 +1,11 @@
import {deepCopy} from './objects.ts'; import {Table} from './database.ts';
import {deepCopy, JSONSanitize} from './objects.ts';
export type CacheOptions = { export type CacheOptions = {
/** Delete keys automatically after x amount of seconds */ /** Delete keys automatically after x amount of seconds */
ttl?: number; ttl?: number;
/** Storage to persist cache */ /** Storage to persist cache */
storage?: Storage; storage?: Storage | Table<any, any>;
/** Key cache will be stored under */ /** Key cache will be stored under */
storageKey?: string; storageKey?: string;
/** Keep or delete cached items once expired, defaults to delete */ /** Keep or delete cached items once expired, defaults to delete */
@ -30,13 +31,16 @@ export class Cache<K extends string | number | symbol, T> {
* @param options * @param options
*/ */
constructor(public readonly key?: keyof T, public readonly options: CacheOptions = {}) { constructor(public readonly key?: keyof T, public readonly options: CacheOptions = {}) {
if(options.storageKey && !options.storage && typeof(Storage) !== 'undefined') if(options.storageKey && !options.storage && typeof(Storage) !== 'undefined') options.storage = localStorage;
options.storage = localStorage; if(options.storage) {
if(options.storageKey && options.storage) { if(options.storage instanceof Table) {
const stored = options.storage.getItem(options.storageKey); (async () => (await options.storage?.getAll()).forEach((v: any) => {
if(stored) { console.log(v);
try { Object.assign(this.store, JSON.parse(stored)); } this.add(v)
catch { } }))()
} else if(options.storageKey) {
const stored = options.storage?.getItem(options.storageKey);
if(stored != null) try { Object.assign(this.store, JSON.parse(stored)); } catch { }
} }
} }
return new Proxy(this, { return new Proxy(this, {
@ -57,9 +61,14 @@ export class Cache<K extends string | number | symbol, T> {
return <K>value[this.key]; return <K>value[this.key];
} }
private save() { private save(key: K) {
if(this.options.storageKey && this.options.storage) if(this.options.storage) {
this.options.storage.setItem(this.options.storageKey, JSON.stringify(this.store)); 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));
}
}
} }
/** /**
@ -111,7 +120,7 @@ export class Cache<K extends string | number | symbol, T> {
*/ */
delete(key: K): this { delete(key: K): this {
delete this.store[key]; delete this.store[key];
this.save(); this.save(key);
return this; return this;
} }
@ -130,14 +139,17 @@ export class Cache<K extends string | number | symbol, T> {
*/ */
expire(key: K): this { expire(key: K): this {
this.complete = false; this.complete = false;
if(this.options.expiryPolicy == 'keep') (<any>this.store[key])._expired = true; if(this.options.expiryPolicy == 'keep') {
else this.delete(key); (<any>this.store[key])._expired = true;
this.save(key);
} else this.delete(key);
return this; return this;
} }
/** /**
* Get item from the cache * Get item from the cache
* @param {K} key Key to lookup * @param {K} key Key to lookup
* @param expired Include expired items
* @return {T} Cached item * @return {T} Cached item
*/ */
get(key: K, expired?: boolean): CachedValue<T> | null { get(key: K, expired?: boolean): CachedValue<T> | null {
@ -177,10 +189,10 @@ export class Cache<K extends string | number | symbol, T> {
set(key: K, value: T, ttl = this.options.ttl): this { set(key: K, value: T, ttl = this.options.ttl): this {
if(this.options.expiryPolicy == 'keep') delete (<any>value)._expired; if(this.options.expiryPolicy == 'keep') delete (<any>value)._expired;
this.store[key] = value; this.store[key] = value;
this.save(); this.save(key);
if(ttl) setTimeout(() => { if(ttl) setTimeout(() => {
this.expire(key); this.expire(key);
this.save(); this.save(key);
}, (ttl || 0) * 1000); }, (ttl || 0) * 1000);
return this; return this;
} }

97
src/database.ts Normal file
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@ -0,0 +1,97 @@
import {ASet} from './aset.ts';
export type TableOptions = {
name: string;
key?: string;
};
export class Database {
connection!: Promise<IDBDatabase>;
tables!: TableOptions[];
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);
this.tables = tables.map(t => {
t = typeof t == 'object' ? t : {name: t};
return {...t, name: t.name.toString()};
});
const tableNames = new ASet(this.tables.map(t => t.name));
req.onerror = () => reject(req.error);
req.onsuccess = () => {
const db = req.result;
if(tableNames.symmetricDifference(new ASet(Array.from(db.objectStoreNames))).length) {
db.close();
Object.assign(this, new Database(this.database, this.tables, db.version + 1));
} else {
this.version = db.version;
resolve(db);
}
};
req.onupgradeneeded = () => {
const db = req.result;
const existingTables = new ASet(Array.from(db.objectStoreNames));
existingTables.difference(tableNames).forEach(name => db.deleteObjectStore(name));
tableNames.difference(existingTables).forEach(name => db.createObjectStore(name));
};
});
}
includes(name: any): boolean {
return !!this.tables.find(t => t.name == name.toString());
}
table<K extends IDBValidKey = any, T = any>(name: any): Table<K, T> {
return new Table<K, T>(this, name.toString());
}
}
export class Table<K extends IDBValidKey = any, T = any> {
constructor(private readonly database: Database, public readonly name: string) {}
async tx<R>(table: string, fn: (store: IDBObjectStore) => IDBRequest, readonly = false): Promise<R> {
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.onerror = () => reject(request.error);
});
}
add(value: T, key?: K): Promise<void> {
return this.tx(this.name, store => store.add(value, key));
}
count(): Promise<number> {
return this.tx(this.name, store => store.count(), true);
}
put(key: K, value: T): Promise<void> {
return this.tx(this.name, store => store.put(value, key));
}
getAll(): Promise<T[]> {
return this.tx(this.name, store => store.getAll(), true);
}
getAllKeys(): Promise<K[]> {
return this.tx(this.name, store => store.getAllKeys(), true);
}
get(key: K): Promise<T> {
return this.tx(this.name, store => store.get(key), true);
}
delete(key: K): Promise<void> {
return this.tx(this.name, store => store.delete(key));
}
clear(): Promise<void> {
return this.tx(this.name, store => store.clear());
}
}

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@ -4,6 +4,7 @@ export * from './aset';
export * from './cache'; export * from './cache';
export * from './color'; export * from './color';
export * from './csv'; export * from './csv';
export * from './database';
export * from './files'; export * from './files';
export * from './emitter'; export * from './emitter';
export * from './errors'; export * from './errors';

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@ -21,11 +21,13 @@ export const CHAR_LIST = LETTER_LIST + LETTER_LIST.toLowerCase() + NUMBER_LIST +
/** /**
* Converts text to camelCase * Converts text to camelCase
*/ */
export function camelCase(str?: string) { export function camelCase(str?: string): string {
const text = pascalCase(str); if(!str) return '';
return !text ? '' : text[0].toLowerCase() + text.slice(1); const pascal = pascalCase(str);
return pascal.charAt(0).toLowerCase() + pascal.slice(1);
} }
/** /**
* Convert number of bytes into a human-readable size * Convert number of bytes into a human-readable size
* *
@ -75,14 +77,12 @@ export function insertAt(target: string, str: string, index: number): String {
/** /**
* Converts text to kebab-case * Converts text to kebab-case
*/ */
export function kebabCase(str: string) { export function kebabCase(str?: string): string {
if(!str) return ''; if(!str) return '';
return str.replaceAll(/(^[^a-zA-Z]+|[^a-zA-Z0-9-_])/g, '') return wordSegments(str).map(w => w.toLowerCase()).join("-");
.replaceAll(/([A-Z]|[0-9]+)/g, (...args) => `-${args[0].toLowerCase()}`)
.replaceAll(/([0-9])([a-z])/g, (...args) => `${args[1]}-${args[2]}`)
.replaceAll(/[^a-z0-9]+(\w?)/g, (...args) => `-${args[1] ?? ''}`).toLowerCase();
} }
/** /**
* Add padding to string * Add padding to string
* *
@ -112,12 +112,13 @@ export function pad(text: any, length: number, char: string = ' ', start = true)
*/ */
export function pascalCase(str?: string): string { export function pascalCase(str?: string): string {
if(!str) return ''; if(!str) return '';
return str.match(/[a-zA-Z0-9]+/g) return wordSegments(str)
?.map(word => word.charAt(0).toUpperCase() + word.slice(1).toLowerCase()) .map((w) => w.charAt(0).toUpperCase() + w.slice(1).toLowerCase())
.join('') ?? ''; .join('');
} }
/** /**
* Generate a random hexadecimal value * Generate a random hexadecimal value
* *
@ -184,14 +185,12 @@ export function randomStringBuilder(length: number, letters = false, numbers = f
/** /**
* Converts text to snake_case * Converts text to snake_case
*/ */
export function snakeCase(str?: string) { export function snakeCase(str?: string): string {
if(!str) return ''; if(!str) return '';
return str.replaceAll(/(^[^a-zA-Z]+|[^a-zA-Z0-9-_])/g, '') return wordSegments(str).map(w => w.toLowerCase()).join("_");
.replaceAll(/([A-Z]|[0-9]+)/g, (...args) => `_${args[0].toLowerCase()}`)
.replaceAll(/([0-9])([a-z])/g, (...args) => `${args[1]}_${args[2]}`)
.replaceAll(/[^a-z0-9]+(\w?)/g, (...args) => `_${args[1] ?? ''}`).toLowerCase();
} }
/** /**
* Splice a string together (Similar to Array.splice) * Splice a string together (Similar to Array.splice)
* *
@ -298,6 +297,23 @@ export function md5(d: string) {
function bit_rol(d:any,_:any){return d<<_|d>>>32-_ function bit_rol(d:any,_:any){return d<<_|d>>>32-_
} }
/**
* Splits a string into logical word segments
*/
export function wordSegments(str?: string): string[] {
if (!str) return [];
return str
.replace(/([a-z])([A-Z])/g, "$1 $2")
.replace(/([A-Z]+)([A-Z][a-z])/g, "$1 $2")
.replace(/([0-9]+)([a-zA-Z])/g, "$1 $2")
.replace(/([a-zA-Z])([0-9]+)/g, "$1 $2")
.replace(/[_\-\s]+/g, " ")
.trim()
.split(/\s+/)
.filter(Boolean);
}
/** /**
* Check if email is valid * Check if email is valid
* *

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@ -59,7 +59,8 @@ describe('String Utilities', () => {
describe('kebabCase', () => { describe('kebabCase', () => {
it('converts to kebab-case', () => { it('converts to kebab-case', () => {
expect(kebabCase('HelloWorldTest')).toContain('-hello'); expect(kebabCase('hello world')).toBe('hello-world');
expect(kebabCase('HelloWorld')).toContain('hello-world');
expect(kebabCase('')).toBe(''); expect(kebabCase('')).toBe('');
}); });
}); });