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utils.ts
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/
utils.ts
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import { clsx, type ClassValue } from 'clsx'
import { customAlphabet } from 'nanoid'
import { twMerge } from 'tailwind-merge'
export function cn(...inputs: ClassValue[]) {
return twMerge(clsx(inputs))
}
export const nanoid = customAlphabet(
'0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz',
7
) // 7-character random string
export async function fetcher<JSON = any>(
input: RequestInfo,
init?: RequestInit
): Promise<JSON> {
const res = await fetch(input, init)
if (!res.ok) {
const json = await res.json()
if (json.error) {
const error = new Error(json.error) as Error & {
status: number
}
error.status = res.status
throw error
} else {
throw new Error('An unexpected error occurred')
}
}
return res.json()
}
export function formatDate(input: string | number | Date): string {
const date = new Date(input)
return date.toLocaleDateString('en-US', {
month: 'long',
day: 'numeric',
year: 'numeric'
})
}
export const formatNumber = (value: number) =>
new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'USD'
}).format(value)
export const runAsyncFnWithoutBlocking = (
fn: (...args: any) => Promise<any>
) => {
fn()
}
export const sleep = (ms: number) =>
new Promise(resolve => setTimeout(resolve, ms))
export const getStringFromBuffer = (buffer: ArrayBuffer) =>
Array.from(new Uint8Array(buffer))
.map(b => b.toString(16).padStart(2, '0'))
.join('')
export enum ResultCode {
InvalidCredentials = 'INVALID_CREDENTIALS',
InvalidSubmission = 'INVALID_SUBMISSION',
UserAlreadyExists = 'USER_ALREADY_EXISTS',
UnknownError = 'UNKNOWN_ERROR',
UserCreated = 'USER_CREATED',
UserLoggedIn = 'USER_LOGGED_IN'
}
export const getMessageFromCode = (resultCode: string) => {
switch (resultCode) {
case ResultCode.InvalidCredentials:
return 'Invalid credentials!'
case ResultCode.InvalidSubmission:
return 'Invalid submission, please try again!'
case ResultCode.UserAlreadyExists:
return 'User already exists, please log in!'
case ResultCode.UserCreated:
return 'User created, welcome!'
case ResultCode.UnknownError:
return 'Something went wrong, please try again!'
case ResultCode.UserLoggedIn:
return 'Logged in!'
}
}
export function format(date: Date, formatString: string) {
const year = date.getFullYear()
const month = date.getMonth()
const day = date.getDate()
const hours = String(date.getHours()).padStart(2, '0')
const minutes = String(date.getMinutes()).padStart(2, '0')
const seconds = String(date.getSeconds()).padStart(2, '0')
const monthNames = [
'Jan',
'Feb',
'Mar',
'Apr',
'May',
'Jun',
'Jul',
'Aug',
'Sep',
'Oct',
'Nov',
'Dec'
]
return formatString
.replace('yyyy', year.toString())
.replace('yy', String(year).slice(-2))
.replace('LLL', monthNames[month])
.replace('MM', String(month + 1).padStart(2, '0'))
.replace('dd', String(day).padStart(2, '0'))
.replace('d', day.toString())
.replace('HH', hours)
.replace('mm', minutes)
.replace('ss', seconds)
}
export function parseISO(dateString: string) {
return new Date(dateString)
}
export function subMonths(date: Date, amount: number) {
const newDate: Date = new Date(date)
newDate.setMonth(newDate.getMonth() - amount)
return newDate
}