const Command = require('../../framework/Command');
const { stripIndents } = require('common-tags');
const Cleverbot = require('../../structures/Cleverbot');

module.exports = class CleverbotCommand extends Command {
	constructor(client) {
		super(client, {
			name: 'cleverbot',
			aliases: ['clevs', 'chat'],
			group: 'cleverbot',
			description: 'Starts a Cleverbot conversation.',
			credit: [
				{
					name: 'Cleverbot',
					url: 'https://www.cleverbot.com/',
					reason: 'API',
					reasonURL: 'https://www.cleverbot.com/api/'
				}
			],
			args: [
				{
					key: 'text',
					type: 'string',
					default: ''
				}
			]
		});
	}

	async run(msg, { text }) {
		if (this.client.cleverbots.has(msg.channel.id) && !text) {
			return msg.say('There is already a Cleverbot conversation in this channel.');
		}
		const cleverbot = new Cleverbot(this.client, msg.channel.id, msg.author.id);
		if (text) {
			try {
				const response = await cleverbot.respond(text);
				return msg.reply(response);
			} catch (err) {
				if (err.status === 503) {
					return msg.reply('Monthly API limit reached. Ending conversation.');
				}
				return msg.reply('Sorry, blacked out there for a second. Come again?');
			}
		}
		this.client.cleverbots.set(msg.channel.id, cleverbot);
		const usage = this.client.registry.commands.get('cleverbot-end').usage();
		return msg.reply(stripIndents`
			Cleverbot is now active in this channel, replying to ${msg.author}.
			To end the conversation, use ${usage}.
		`);
	}
};