const Command = require('../../framework/Command');
const { verify } = require('../../util/Util');
const nums = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

module.exports = class PickANumberCommand extends Command {
	constructor(client) {
		super(client, {
			name: 'pick-a-number',
			aliases: ['pick-number', 'pick-a-number-between', 'pick-a-num', 'pick-num'],
			group: 'games-mp',
			description: 'Two players pick a number between 1 and 10. Whoever\'s closer wins.',
			game: true,
			args: [
				{
					key: 'opponent',
					type: 'user'
				}
			]
		});
	}

	async run(msg, { opponent }) {
		if (opponent.id === msg.author.id) return msg.reply('You may not play against yourself.');
		if (this.client.blacklist.user.includes(opponent.id)) return msg.reply('This user is blacklisted.');
		const clientOpp = opponent.id === this.client.user.id;
		if (!opponent.bot) {
			await msg.say(`${opponent}, do you accept this challenge?`);
			const verification = await verify(msg.channel, opponent);
			if (!verification) return msg.say('Looks like they declined...');
		}
		await msg.say(`${msg.author}, pick a number from 1 to 10.`);
		let userTurn = true;
		let player1Pick = null;
		const filter = res => {
			if (res.author.id !== (userTurn ? msg.author.id : opponent.id)) return false;
			const num = Number.parseInt(res.content, 10);
			if (!userTurn && num === player1Pick) return false;
			return num && nums.includes(num);
		};
		const player1 = await msg.channel.awaitMessages({
			filter,
			max: 1,
			time: 30000
		});
		if (!player1.size) return msg.say('I guess you didn\'t want to play after all...');
		player1Pick = Number.parseInt(player1.first().content, 10);
		let player2Pick;
		if (opponent.bot) {
			const valid = nums.filter(num => num !== player1Pick);
			player2Pick = valid[Math.floor(Math.random() * valid.length)];
			await msg.say(`Okay, ${clientOpp ? 'I' : `${opponent}`} pick${clientOpp ? '' : 's'} ${player2Pick}!`);
		} else {
			userTurn = false;
			await msg.say(`${opponent}, pick a number from 1 to 10, except ${player1Pick}.`);
			const player2 = await msg.channel.awaitMessages({
				filter,
				max: 1,
				time: 30000
			});
			if (!player2.size) return msg.say('I guess you didn\'t want to play after all...');
			player2Pick = Number.parseInt(player2.first().content, 10);
		}
		const num = Math.floor(Math.random() * 10) + 1;
		const winNum = [player1Pick, player2Pick].sort((a, b) => Math.abs(num - a) - Math.abs(num - b))[0];
		const winner = winNum === player1Pick ? msg.author : opponent;
		const clientWin = clientOpp && this.client.user.id === winner.id;
		return msg.say(`The number was **${num}**! ${clientWin ? 'I' : winner} win${clientWin ? '' : 's'}!`);
	}
};