const { Command } = require('discord.js-commando');
const emoji = require('emoji-random');

module.exports = class ClearUtility extends Command {
    constructor(client) {
        super(client, {
            name: 'clear',
            aliases: ['delete', 'del', 'c', 'd'],
            group: 'utility',
            memberName: 'clear',
            description: 'Clears a specified amount of messages.',
            guildOnly: true,
            args: [
                {
                    key: 'deleteAmount',
                    prompt: 'How many messages would you like to delete?',
                    type: 'integer'
                }
            ],
            examples: [
                'uwu!clear 23',
                'uwu!delete 75',
                'uwu!del 32',
                'uwu!c 45',
                'uwu!d 84'
            ],
            userPermissions: ['SEND_MESSAGES', 'READ_MESSAGE_HISTORY', 'MANAGE_MESSAGES'],
			clientPermissions: ['SEND_MESSAGES', 'READ_MESSAGE_HISTORY', 'MANAGE_MESSAGES']
        });
    }
    async run(msg, { deleteAmount }) {
        if (msg.member.hasPermission('MANAGE_MESSAGES')) {
            if (!deleteAmount) {
                msg.reply('You haven\'t specified an amount of messages which should be deleted. ' + emoji.random()).then(deleteNotificationMessage => {
                    deleteNotificationMessage.delete({ timeout: 1000 });
                });
            } else if (isNaN(deleteAmount)) {
                msg.reply('The amount parameter isn\'t a number. ' + emoji.random()).then(deleteNotificationMessage => {
                    deleteNotificationMessage.delete({ timeout: 1000 });
                });
            } else if (deleteAmount > 100) {
                msg.reply('You can\'t delete more than 100 messages at once. ' + emoji.random()).then(deleteNotificationMessage => {
                    deleteNotificationMessage.delete({ timeout: 1000 });
                });
            } else if (deleteAmount < 1) {
                msg.reply('You have to delete at least 1 message. ' + emoji.random()).then(deleteNotificationMessage => {
                    deleteNotificationMessage.delete({ timeout: 1000 });
                });
            }
            /*else if (msg.createdTimestamp > 1209600) {
                               msg.reply('due to discord rules, bots can only bulk delete messages that are under 14 days old :(')
                           } */
            else {
                var clearAmount = deleteAmount + 1;
                // It took me so long to figure out why this was not really working. It would delete but an insane amount at a time.
                // I realized that because it was getting parsed as a string, it would just add 1 to it so if I tried to delete 1
                // message, it would delete 11 lol. Fixed by parsing as integer THEN adding one. 02:30 2020/04/03/2020

                await msg.channel.messages.fetch({
                    limit: clearAmount
                }).then(messages => { // I am on v11 discord.js
                    msg.channel.bulkDelete(messages);
                });
                msg.reply('It\'s been deleted ~uwu ' + emoji.random()).then(deleteNotificationMessage => {
                    deleteNotificationMessage.delete({ timeout: 1000 });
                });
            }
        } else {
            msg.reply('Insufficent perms. ' + emoji.random());
        }
    }
};