const Command = require('../../framework/Command');
const request = require('node-superfetch');
const { stripIndents } = require('common-tags');
const words = require('../../assets/json/word-list');
const { WEBSTER_KEY } = process.env;

module.exports = class HangmanCommand extends Command {
	constructor(client) {
		super(client, {
			name: 'hangman',
			group: 'games-sp',
			memberName: 'hangman',
			description: 'Prevent a man from being hanged by guessing a word as fast as you can.',
			game: true,
			credit: [
				{
					name: 'Grady Ward',
					url: 'https://en.wikipedia.org/wiki/Grady_Ward',
					reason: 'Moby Word Lists',
					reasonURL: 'http://www.gutenberg.org/ebooks/3201'
				},
				{
					name: 'Merriam-Webster\'s Collegiate® Dictionary',
					url: 'https://www.merriam-webster.com/',
					reason: 'API',
					reasonURL: 'https://dictionaryapi.com/products/api-collegiate-dictionary'
				}
			]
		});
	}

	async run(msg) {
		const word = words[Math.floor(Math.random() * words.length)].toLowerCase();
		let points = 0;
		let displayText = null;
		let guessed = false;
		const confirmation = [];
		const incorrect = [];
		const display = new Array(word.length).fill('_');
		while (word.length !== confirmation.length && points < 6) {
			await msg.say(stripIndents`
				${displayText === null ? 'Here we go!' : displayText ? 'Good job!' : 'Nope!'}
				\`${display.join(' ')}\`. Which letter do you choose? Type \`end\` to forfeit.
				Incorrect Tries: ${incorrect.join(', ') || 'None'}
				\`\`\`
				___________
				|     |
				|     ${points > 0 ? 'O' : ''}
				|    ${points > 2 ? '—' : ' '}${points > 1 ? '|' : ''}${points > 3 ? '—' : ''}
				|    ${points > 4 ? '/' : ''} ${points > 5 ? '\\' : ''}
				===========
				\`\`\`
			`);
			const filter = res => {
				const choice = res.content.toLowerCase();
				return res.author.id === msg.author.id && !confirmation.includes(choice) && !incorrect.includes(choice);
			};
			const guess = await msg.channel.awaitMessages({
				filter,
				max: 1,
				time: 30000
			});
			if (!guess.size) {
				await msg.say('Sorry, time is up!');
				break;
			}
			const choice = guess.first().content.toLowerCase();
			if (choice === 'end') break;
			if (choice.length > 1 && choice === word) {
				guessed = true;
				break;
			} else if (word.includes(choice)) {
				displayText = true;
				for (let i = 0; i < word.length; i++) {
					if (word.charAt(i) !== choice) continue;
					confirmation.push(word.charAt(i));
					display[i] = word.charAt(i);
				}
			} else {
				displayText = false;
				if (choice.length === 1) incorrect.push(choice);
				points++;
			}
		}
		const defined = await this.defineWord(word);
		if (word.length === confirmation.length || guessed) {
			return msg.say(stripIndents`
				You won, it was ${word}!

				${defined ? `**${defined.name}** (${defined.partOfSpeech})` : ''}
				${defined ? defined.definiton : ''}
			`);
		}
		return msg.say(stripIndents`
			Too bad... It was ${word}...

			${defined ? `**${defined.name}** (${defined.partOfSpeech})` : ''}
			${defined ? defined.definiton : ''}
		`);
	}

	async defineWord(word) {
		try {
			const { body } = await request
				.get(`https://www.dictionaryapi.com/api/v3/references/collegiate/json/${word}`)
				.query({ key: WEBSTER_KEY });
			if (!body.length) return null;
			const data = body[0];
			if (typeof data === 'string') return null;
			return {
				name: data.meta.stems[0],
				partOfSpeech: data.fl,
				definiton: data.shortdef.map((definition, i) => `(${i + 1}) ${definition}`).join('\n')
			};
		} catch {
			return null;
		}
	}
};