src/utils/parseInput.ts

import DiscordClient from '../client/Client';
import { User, GuildMember, GuildChannel, Role, Guild } from 'discord.js';

export async function parseUser(client: DiscordClient, input: string): Promise <User | null> {
    if (!/^\<\@(\!)?(\d+)\>$/.test(input.trim())) {
        return null;
    }   

    let user: User | null = null;   

    try {
        user = await client.users.fetch(input.trim().substring(input.includes('!') ? 3 : 2, input.trim().length - 1));
    }
    catch (e) {
        return null;
    }

    return user;
}

export async function parseMember(guild: Guild, input: string): Promise <GuildMember | null> {
    if (!/^\<\@(\!)?(\d+)\>$/.test(input.trim())) {
        return null;
    }   

    let user: GuildMember | null = null;    

    try {
        user = await guild.members.fetch(input.trim().substring(input.includes('!') ? 3 : 2, input.trim().length - 1));
    }
    catch (e) {
        return null;
    }

    return user;
}

export async function parseChannel(guild: Guild, input: string): Promise <GuildChannel | null> {
    if (!/^\<\#(\d+)\>$/.test(input.trim())) {
        return null;
    }   

    let channel: GuildChannel | null = null;    

    try {
        channel = await guild.channels.fetch(input.trim().substring(2, input.trim().length - 1));
    }
    catch (e) {
        return null;
    }

    return channel;
}

export async function parseRole(guild: Guild, input: string): Promise <Role | null> {
    if (!/^\<\@\&(\d+)\>$/.test(input.trim())) {
        return null;
    }   

    let role: Role | null = null;   

    try {
        role = await guild.roles.fetch(input.trim().substring(3, input.trim().length - 1));
    }
    catch (e) {
        return null;
    }

    return role;
}
1	import DiscordClient from '../client/Client';
2	import { User, GuildMember, GuildChannel, Role, Guild } from 'discord.js';
3
4	export async function parseUser(client: DiscordClient, input: string): Promise <User \| null> {
5	if (!/^\<\@(\!)?(\d+)\>$/.test(input.trim())) {
6	return null;
7	}
8
9	let user: User \| null = null;
10
11	try {
12	user = await client.users.fetch(input.trim().substring(input.includes('!') ? 3 : 2, input.trim().length - 1));
13	}
14	catch (e) {
15	return null;
16	}
17
18	return user;
19	}
20
21	export async function parseMember(guild: Guild, input: string): Promise <GuildMember \| null> {
22	if (!/^\<\@(\!)?(\d+)\>$/.test(input.trim())) {
23	return null;
24	}
25
26	let user: GuildMember \| null = null;
27
28	try {
29	user = await guild.members.fetch(input.trim().substring(input.includes('!') ? 3 : 2, input.trim().length - 1));
30	}
31	catch (e) {
32	return null;
33	}
34
35	return user;
36	}
37
38	export async function parseChannel(guild: Guild, input: string): Promise <GuildChannel \| null> {
39	if (!/^\<\#(\d+)\>$/.test(input.trim())) {
40	return null;
41	}
42
43	let channel: GuildChannel \| null = null;
44
45	try {
46	channel = await guild.channels.fetch(input.trim().substring(2, input.trim().length - 1));
47	}
48	catch (e) {
49	return null;
50	}
51
52	return channel;
53	}
54
55	export async function parseRole(guild: Guild, input: string): Promise <Role \| null> {
56	if (!/^\<\@\&(\d+)\>$/.test(input.trim())) {
57	return null;
58	}
59
60	let role: Role \| null = null;
61
62	try {
63	role = await guild.roles.fetch(input.trim().substring(3, input.trim().length - 1));
64	}
65	catch (e) {
66	return null;
67	}
68
69	return role;
70	}