import { Command, CommandoMessage } from 'discord.js-commando';
import request from 'node-superfetch'
import emoji from 'emoji-random'

module.exports = class RandomFactFun extends Command {
    constructor(client) {
        super(client, {
            name: 'randomfact',
            aliases: [
                'random-fact',
                'fact',
                'facts'
            ],
            group: 'fun',
            memberName: 'randomfact',
            description: 'Gives you a random fact.',
            examples: ['uwu!randomfact'],
            throttling: {
                usages: 5,
                duration: 30
            },
            userPermissions: ['SEND_MESSAGES', 'READ_MESSAGE_HISTORY'],
            clientPermissions: ['SEND_MESSAGES', 'READ_MESSAGE_HISTORY'],
        });
    }
    async run(msg: CommandoMessage) {
        try {
            const article = await this.randomWikipediaArticle()
            const { body } = await request
                .get('https://en.wikipedia.org/w/api.php')
                .query({
                    action: 'query',
                    prop: 'extracts',
                    format: 'json',
                    titles: article,
                    exintro: '',
                    explaintext: '',
                    redirects: '',
                    formatversion: 2
                })
            let fact = body.query.pages[0].extract;
            if (fact.length > 200) {
                const facts = fact.split('.');
                fact = `${facts[0]}.`;
                if (fact.length < 200 && facts.length > 1) fact += `${facts[1]}.`;
            }
            return msg.reply(fact + ' ' + emoji.random());
        } catch (err) {
            return msg.reply(`Woops, an error has occured: \`${err.message}\`. Try again later! ${emoji.random()}`)
        }
    }
    async randomWikipediaArticle() {
        const { body } = await request
            .get('https://en.wikipedia.org/w/api.php')
            .query({
                action: 'query',
                list: 'random',
                rnnamespace: 0,
                rnlimit: 1,
                format: 'json',
                formatversion: 2
            });
        if (!body.query.random[0].title) return 'Facts are hard to find sometimes.';
        return body.query.random[0].title;
    }
};