const axios = require('axios').default;
const Discord = require('discord.js');

require('dotenv').config();

module.exports = {
    randomColor: randomColor,
    RNG: RNG,
    getGifs: getGifs,
    getGifEmbed: getGifEmbed,
    getGifWithMessage: getGifWithMessage,
    returnPromiseString: returnPromiseString,
    moveMessage: moveMessage,
};

function randomColor() {
    let color = '#';
        for (let i = 0; i < 6; i++) {
            const random = Math.random();
            const bit = (random * 16) | 0;
            color += (bit).toString(16);
        }
        return color;
}

function RNG(max) {
    return Math.floor(Math.random() * max);
}

async function getGifs(gifs) {
    return new Promise((resolve) => {
        resolve(axios.get(gifs));
    });
}

async function getGifEmbed(gifQuery, gifAmount) {
    const response = await getGifs(gifQuery);
    const gif = response.data.results[RNG(gifAmount)].media[0].gif.url;
    const gifEmbed = new Discord.MessageEmbed()
        .setImage(gif)
        .setColor(randomColor());
    return gifEmbed;
}

async function getGifWithMessage(interaction, gifQuery, gifAmount) {
    const gifEmbed = await getGifEmbed(gifQuery, gifAmount);

    const who = interaction.options.getMentionable('who');
    if (who == null) {
        return gifEmbed;
    }
    gifEmbed.setDescription(interaction.user.username
        + ` ${interaction.commandName}s ` + `${who}`);
    return gifEmbed;
}

async function returnPromiseString(guildMembers) {
    return new Promise(() => {
        guildMembers.fetch();
    });
}

//YouTube not working, file exceeds upload limit
function moveMessage(message, channelId) {
    message.react('🐮');

    const replyChannel = message.channel;
    const msgToMooveId = message.reference.messageId;
    const mentionedChannelId = channelId.substring(2, channelId.length - 1);

    replyChannel.messages.fetch(msgToMooveId).then(msg => {
        if (msg.attachments.size > 0) {
            const newMsgAttachments = [];
            const allAttachments = msg.attachments.values();

            for (let i = 0; i < msg.attachments.size; i++) {
                const currAttachment = allAttachments.next().value;
                newMsgAttachments.push(new MessageAttachment(currAttachment.url));
            }

            if (msg.embeds.length > 0) {
                client.channels.cache.get(mentionedChannelId)
                    .send({ content: `Sent by ${msg.author}\nmooved ${message.author}`, embeds: msg.embeds, files: newMsgAttachments });
            }
            else {
                client.channels.cache.get(mentionedChannelId)
                    .send({ content: `Sent by ${msg.author}\nmooved ${message.author}`, files: newMsgAttachments });
            }
        }
        else {
            const embed = new Discord.MessageEmbed()
                .setColor(help.randomColor())
                .addField('MOO', `Sent by ${msg.author}\nmooved ${message.author}`);
                if (msg.content.includes('http')) {
                    const file = new MessageAttachment(msg.content);
                    client.channels.cache.get(mentionedChannelId).send({
                        embeds: [embed], files: [file] });
                }
                else {
                    embed.addField('Message:', msg.content);
                    client.channels.cache.get(mentionedChannelId).send({
                        embeds: [embed] });
                }
            }
        setTimeout(() => msg.delete(), 3000);
    });
    setTimeout(() => message.delete(), 3000);
}