import { Command } from 'discord-akairo';
import { Message } from 'discord.js';

export default class BanMod extends Command {
    public constructor() {
        super('ban', {
            aliases: ['ban', 'banish'],
            category: 'moderation',
            description: {
                content: 'Ban a specified user from the server.',
                usage: '[user] [reason(s)]',
                examples: [
                    '@fun#1337',
                    '@fun#1337 too cool'
                ]
            },
            ratelimit: 3,
            channel: 'guild',
            clientPermissions: ['BAN_MEMBERS'],
            userPermissions: ['BAN_MEMBERS'],
            args: [
                {
                    id: 'user',
                    type: 'string',
                    prompt: {
                        start: 'Which user would you like to ban?',
                        retry: 'That doesn\'t seem to be a user, please try again!'
                    }
                },
                {
                    id: 'reason',
                    type: 'string',
                    prompt: {
                        start: 'For what reason would you like to ban this user?',
                        optional: true
                    },
                    match: 'rest'
                }
            ]
        });
    }
    
    public async exec(msg: Message, { user, reason }): Promise<Message> {
        if (msg.mentions.members.first()) user = msg.mentions.members.first().id;
        
        if (user === this.client.user.id) return msg.channel.send('You can\'t ban me!');
        if (!reason) reason = 'No reason has been specified.';
        if (user === msg.author.id) return msg.channel.send('You can\'t ban yourself!');
        
        if (msg.mentions.members.first()) {
            user = msg.mentions.members.first();
            await user.send(`You have been banned from **${msg.guild.name}** for the following reason(s): "**${reason}**".`)
                .catch(() => console.log('[ERROR] Could not send message to this user.'));
                
            return user.ban({ reason: `Banned by: ${msg.author.username} for the following reason(s): ${reason}.`})
                .then(() => msg.reply(`${user.user.username} was successfully banned with the following reason(s): "**${reason}**".`))
                .catch(err => console.error(err));
        } else {
            msg.guild.members.ban(user, { reason: `Banned by: ${msg.author.username} for the following reason(s): ${reason}.`})
                .then(() => msg.reply(`User ID ${user} was successfully banned with the following reason(s): "**${reason}**".`))
                .catch(err => console.error(err));
        }
    }
}