Helpers

import { timestamp, TimestampStyle, type GuildMember } from 'chapterjs';

function welcome(member: GuildMember) {
  return `Bienvenue ${member} ! Vous êtes arrivé ${timestamp(member.joinedAt ?? new Date(), TimestampStyle.Relative)}.`;
}

userMention(userId: Snowflake): `<@${string}>`

channelMention(channelId: Snowflake): `<#${string}>`

roleMention(roleId: Snowflake): `<@&${string}>`

commandMention(name: string, commandId: Snowflake): `</${string}:${string}>`

emojiMention(name: string, emojiId: Snowflake, animated?: boolean): string

timestamp(date: Date | number, style?: TimestampStyle): string

timestamp() needs a valid date.

type Snowflake = string

isSnowflake(value: unknown): value is Snowflake

snowflakeTimestamp(id: Snowflake): number

snowflakeFromTimestamp(timestamp: number | Date): Snowflake

import { snowflakeFromTimestamp, type TextChannel } from 'chapterjs';

async function sinceYesterday(channel: TextChannel) {
  const yesterday = Date.now() - 24 * 3600 * 1000;
  return channel.fetchMessages({ after: snowflakeFromTimestamp(yesterday), limit: 100 });
}

Discord ids start in 2015: the date is too early.

import type { User } from 'chapterjs';

function bigAvatar(user: User) {
  return user.avatarURL({ format: 'png', size: 1024 });
}

"bmp" is not an image format. Use png, jpg, webp or gif.

100 is not an image size. Use a power of two between 16 and 4096 (64, 128, 256...).

type ImageFormat = 'png' | 'jpg' | 'jpeg' | 'webp' | 'gif'

type ImageSize = 16 | 32 | 64 | 128 | 256 | 512 | 1024 | 2048 | 4096