since3-portal/lib/generate-password.ts

import { randomInt } from "crypto"

const LOWERCASE = "abcdefghijkmnpqrstuvwxyz"
const UPPERCASE = "ABCDEFGHJKLMNPQRSTUVWXYZ"
const DIGITS = "23456789"
const SYMBOLS = "!@#$%&*"
const ALL_CHARS = LOWERCASE + UPPERCASE + DIGITS + SYMBOLS

export function generatePassword(length = 14) {
    const required = [
        LOWERCASE[randomInt(LOWERCASE.length)],
        UPPERCASE[randomInt(UPPERCASE.length)],
        DIGITS[randomInt(DIGITS.length)],
        SYMBOLS[randomInt(SYMBOLS.length)],
    ]

    const rest = Array.from({ length: length - required.length }, () =>
        ALL_CHARS[randomInt(ALL_CHARS.length)]
    )

    const password = [...required, ...rest]

    for (let i = password.length - 1; i > 0; i--) {
        const j = randomInt(i + 1)
        ;[password[i], password[j]] = [password[j], password[i]]
    }

    return password.join("")
}