const { Command } = require('discord.js-commando');
const { RichEmbed } = require('discord.js');
const snekfetch = require('snekfetch');
const { languages } = require('./languages.json');

module.exports = class TranslateCommand extends Command {
    constructor(client) {
        super(client, {
            name: 'translate',
            group: 'textedit',
            memberName: 'translate',
            description: 'Translates text to a given language. (;translate ja Give me the money!)',
            details: '**Codes:** af: Afrikaans, am: Amharic, ar: Arabic, az: Azerbaijani, ba: Bashkir, be: Belarusian, bg: Bulgarian, bn: Bengali, bs: Bosnian, ca: Catalan, ceb: Cebuano, cs: Czech, cy: Welsh, da: Danish, de: German, el: Greek, en: English, eo: Esperanto, es: Spanish, et: Estonian, eu: Basque, fa: Persian, fi: Finnish, fr: French, ga: Irish, gd: Scots Gaelic, gl: Galician, gu: Gujarati, he: Hebrew, hi: Hindi, hr: Croatian, ht: Haitian, hu: Hungarian, hy: Armenian, id: Indonesian, is: Icelandic, it: Italian, ja: Japanese, jv: Javanese, ka: Georgian, kk: Kazakh, km: Khmer, kn: Kannada, ko: Korean, ky: Kyrgyz, la: Latin, lb: Luxembourgish, lo: Loa, lt: Lithuanian, lv: Latvian, mg: Malagasy, mhr: Mari, mi: Maori, mk: Macedonian, ml: Malayalam, mn: Mongolian, mr: Marathi, mrj: Hill Mari, ms: Malay, mt: Maltese, my: Burmese, ne: Nepali, nl: Dutch, no: Norwegian, pa: Punjabi, pap: Papiamento, pl: Polish, pt: Portuguese, ro: Romanian, ru: Russian, si: Sinhalese, sk: Slovak, sl: Slovenian, sq: Albanian, sr: Serbian, su: Sundanese, sv: Swedish, sw: Swahili, ta: Tamil, te: Telugu, tg: Tajik, th: Thai, tl: Tagalog, tr: Turkish, tt: Tatar, udm: Udmurt, uk: Ukrainian, ur: Urdu, uz: Uzbek, vi: Vietnamese, xh: Xhosa, yi: Yiddish, zh: Chinese',
            examples: [';translate ja Give me the the money!'],
            args: [{
                key: 'to',
                prompt: 'What language would you like to translate to?',
                type: 'string',
                validate: to => {
                    if (languages[to.toLowerCase()]) {
                        return true;
                    }
                    return 'Please enter a valid language code. Use `;help translate` for a list of codes.';
                }
            }, {
                key: 'text',
                prompt: 'What text would you like to translate?',
                type: 'string',
                validate: content => {
                    if (content.length > 200) {
                        return 'Please keep translation queries under 200 characters.';
                    }
                    return true;
                }
            }]
        });
    }

    async run(message, args) {
        if (message.channel.type !== 'dm') {
            if (!message.channel.permissionsFor(this.client.user).hasPermission(['SEND_MESSAGES', 'READ_MESSAGES'])) return;
            if (!message.channel.permissionsFor(this.client.user).hasPermission('EMBED_LINKS')) return message.say(':x: Error! I don\'t have the Embed Links Permission!');
        }
        const language = args.to.toLowerCase();
        const query = encodeURIComponent(args.text);
        try {
            const response = await snekfetch
                .get(`https://translate.yandex.net/api/v1.5/tr.json/translate?key=${process.env.YANDEX_KEY}&lang=${language}&text=${query}`);
            const data = response.body;
            const translated = data.text[0];
            const langs = data.lang.split('-');
            const langTo = langs[1];
            const langFrom = langs[0];
            const embed = new RichEmbed()
                .setColor(0x00AE86)
                .addField(`Input (From: ${languages[langFrom]}):`,
                    query)
                .addField(`Translation (To: ${languages[langTo]}):`,
                    translated);
            return message.embed(embed);
        }
        catch (err) {
            return message.say(':x: Error! Something went wrong!');
        }
    }
};