12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970
import { checkShareIsValid } from "../core-validators/addresses.ts";import {  alphaLower,  workspaceKeyChars,} from "../core-validators/characters.ts";import { isErr, ValidationError } from "./errors.ts";
export { fast_deep_equal as deepEqual } from "../../deps.ts";
//================================================================================// TIME
export function microsecondNow() {  return Date.now() * 1000;}
/** Returns a promise which is fulfilled after a given number of milliseconds. */export function sleep(ms: number): Promise<void> {  return new Promise((res) => {    setTimeout(res, ms);  });}
// TODO: better randomness hereexport function randomId(): string {  return "" + Math.random() + Math.random();}
// replace all occurrences of substring "from" with "to"export function replaceAll(str: string, from: string, to: string): string {  return str.split(from).join(to);}
// how many times does the character occur in the string?
export function countChars(str: string, char: string) {  if (char.length != 1) {    throw new Error("char must have length 1 but is " + JSON.stringify(char));  }  return str.split(char).length - 1;}
export function isObjectEmpty(obj: Object): Boolean {  return Object.keys(obj).length === 0;}
//================================================================================// Share
export function generateShareAddress(name: string): string | ValidationError {  const randomFromString = (str: string) => {    return str[Math.floor(Math.random() * str.length)];  };
  const firstLetter = randomFromString(alphaLower);  const rest = Array.from(Array(11), () => randomFromString(workspaceKeyChars))    .join("");
  const suffix = `${firstLetter}${rest}`;  const address = `+${name}.${suffix}`;
  const isValid = checkShareIsValid(address);
  if (isErr(isValid)) {    return isValid;  }
  return address;}