'use strict';

const config = require('config');
const timers = require('timers/promises');

const pickRandom = require('../utils/pick-random');
const style = require('../utils/style');

const countries = require('../../assets/countries-curated.json');
const states = require('../../assets/states-curated.json');
const flags = require('../../assets/flags-curated.json');

const data = { countries, states, flags };

const games = {
	countries: new Map(),
	states: new Map(),
	flags: new Map(),
};

const questions = [
	'What\'s this country?',
	'Name this country.',
	'Where are we going on holiday?',
	'What\'s our destination?',
	'I\'d never heard of that place, what\'s it called?',
];

function hint(game, context) {
	if (game.name.length >= 5) {
		context.sendMessage(`${style.bold(`${game.name.slice(0, 1)} ${game.name.slice(1, -1).replace(/\s/g, ' ').replace(/[^\s]/g, '_ ')}${game.name.slice(-1)}`.toUpperCase())}, the country code is ${style.bold(game.alpha2)}`, context.room.id); // eslint-disable-line no-irregular-whitespace

		return;
	}

	context.sendMessage(`${style.bold(`${game.name.slice(0, 1)} ${game.name.slice(1).replace(/\s/g, ' ').replace(/[^\s]/g, '_ ').trim()}`.toUpperCase())}, the country code is ${style.bold(game.alpha2)}`, context.room.id); // eslint-disable-line no-irregular-whitespace
}

function play(context, type = 'countries') {
	const country = pickRandom(data[type]);
	const url = `${config.geo.url}${type}/${country.file}`;

	games[type].set(context.room.id, {
		...country,
		type,
		url,
		regexp: new RegExp(country.fullName ? `(${country.name})|(${country.fullName})` : country.name, 'i'),
	});

	context.sendMessage(`${url} ${pickRandom(questions)}`, context.room.id);
	context.logger.info(`Geo played '${country.name}' (${url})`);
}

function getType(command) {
	if (['state', 'america'].includes(command)) {
		return 'states';
	}

	if (['flag'].includes(command)) {
		return 'flags';
	}

	return 'countries';
}

async function onCommand(args, context) {
	const type = getType(context.command);

	if (context.subcommand && !games[type].has(context.room.id)) {
		context.sendMessage(`There is no country in play right now. Start a new round with ${config.prefix}geo!`, context.room.id);
		return;
	}

	if (['skip', 'stop', 'reset'].includes(context.subcommand)) {
		const game = games[type].get(context.room.id);

		games[type].delete(context.room.id);
		context.sendMessage(`Geo was skipped by ${context.user.prefixedUsername}. The country was ${style.bold(game.fullName ? `${game.fullName} (${game.name})` : game.name)}.`, context.room.id);

		await timers.setTimeout(2000);
	}

	const game = games[type].get(context.room.id);

	if (context.subcommand === 'hint') {
		hint(game, context);
		return;
	}

	if (game) {
		context.sendMessage(game.url, context.room.id);
		return;
	}

	play(context, type);
}

async function onMessage(message, context) {
	['countries', 'states', 'flags'].forEach(async (type) => {
		const game = games[type].get(context.room?.id);

		if (!game) {
			return;
		}

		if (game.regexp.test(message.body)) {
			context.sendMessage(`${style.answer(game.fullName || game.name)} is the right answer! ${style.username(context.user.prefixedUsername)} gets a point.`, context.room.id);
			context.setPoints(context.user);

			games[type].delete(context.room.id);

			await timers.setTimeout(3000);

			play(context, type);
		}
	});
}

module.exports = {
	onCommand,
	onMessage,
	commands: ['country', 'atlas', 'state', 'america', 'flag'],
	help: 'Name the country or US state on the map! Too hard? Try ~geo:hint or ~geo:skip.',
};