const Discord = require('discord.js');
const { findMessage } = require('@dsabot/findMessage');
const { getSpell } = require('@dsabot/getSpell');
const { db } = require('../globals');

const ReplySpellList = (SpellList = []) => {
    if (!SpellList) return findMessage('NO_SPELLS');
    return `${SpellList.map(s => `${s.Name} (${s.Level})`).join('\n')}`;
};

const ReplySpell = (Spell = {}) => {
    if (!Spell) return null;
    return `Deine Werte für ${Spell.Name} (${Spell.Level}) sind:

    ${Spell.Attributes.map(attribute => `${attribute.Name}: ${attribute.Level}`).join('   ')}
    `;
};

const createSpellList = (Character = {}) => {
    if (!Character || !Character.hasOwnProperty('spells')) return null;
    const SpellList = [];
    Character.spells.forEach(spell =>
        SpellList.push(getSpell({ Character: Character, spell_name: spell.id }))
    );
    return SpellList.filter(value => value !== undefined && value !== null); //?+
};

module.exports = {
    name: 'spells',
    description: 'Zeigt dir deinen Fertigkeitswert im jeweiligen Magietalent.',
    aliases: ['spell', 'zauber'],
    usage: '<Zauber>',
    needs_args: false,

    async exec(message, args) {
        db.find({ user: message.author.tag })
            .then(docs => {
                if (docs.length === 0) {
                    return message.reply(findMessage('NOENTRY'));
                }
                const Character = docs[0].character;
                if (!Character.hasOwnProperty('spells'))
                    return message.reply(findMessage('NO_SPELLS'));
                if (args.length === 0) {
                    const Embed = new Discord.MessageEmbed()
                        .setColor('#0099ff')
                        .setTitle(findMessage('SPELLS_TITLE'))
                        .setDescription(findMessage('SPELLS_DESCRIPTION'))
                        .addField(ReplySpellList(createSpellList(Character)), '\u200B', true);
                    return message.reply(Embed);
                }
                const Spell = getSpell({
                    Character: Character,
                    spell_name: args[0],
                });
                if (!Spell) return message.reply(findMessage('SPELL_UNKNOWN'));
                return message.reply(ReplySpell(Spell));
            })
            .catch(err => {
                message.reply(findMessage('ERROR'));
                throw new Error(err);
            });
    },
};