const { Command } = require('discord.js-commando');
const codes = require('./memecodes');

module.exports = class MemeCommand extends Command {
    constructor(client) {
        super(client, {
            name: 'meme',
            group: 'imageedit',
            memberName: 'meme',
            description: 'Sends a Meme with text of your choice, and a background of your choice.',
            details: `**Codes:** ${codes.join(', ')}`,
            args: [
                {
                    key: 'type',
                    prompt: 'What meme type do you want to use?',
                    type: 'string',
                    validate: type => {
                        if (codes.includes(type.toLowerCase()))
                            return true;
                        return `${type.toLowerCase()} is not a valid meme type. Use \`help meme\` to view a list of types.`;
                    },
                    parse: type => type.toLowerCase()
                },
                {
                    key: 'top',
                    prompt: 'What should the top row of the meme to be?',
                    type: 'string',
                    validate: top => {
                        if (/[a-zA-Z0-9.,!?'\s]+$/g.test(top) && top.length < 100)
                            return true;
                        return `Please do not use special characters and keep the rows under 100 characters each, top row has ${top.length}.`;
                    },
                    parse: top => top.replace(/[ ]/g, '-').replace(/[?]/g, '~q')
                },
                {
                    key: 'bottom',
                    prompt: 'What should the bottom row of the meme to be?',
                    type: 'string',
                    validate: bottom => {
                        if (/[a-zA-Z0-9.,!?'\s]+$/g.test(bottom) && bottom.length < 100)
                            return true;
                        return `Please do not use special characters and keep the rows under 100 characters each, bottom row has ${bottom.length}.`;
                    },
                    parse: bottom => bottom.replace(/[ ]/g, '-').replace(/[?]/g, '~q')
                }
            ]
        });
    }

    run(msg, args) {
        if (msg.channel.type !== 'dm')
            if (!msg.channel.permissionsFor(this.client.user).has('ATTACH_FILES'))
                return msg.say('This Command requires the `Attach Files` Permission.');
        const { type, top, bottom } = args;
        return msg.channel.send({files: [`https://memegen.link/${type}/${top}/${bottom}.jpg`]})
            .catch(err => msg.say(`An Error Occurred: ${err}`));
    }
};