// This makes the events used a bit more readable
const events = {
    MESSAGE_REACTION_ADD: 'messageReactionAdd',
    MESSAGE_REACTION_REMOVE: 'messageReactionRemove',
};

// This event handles adding/removing users from the role(s) they chose based on message reactions
client.on('raw', async event => {
    if (!events.hasOwnProperty(event.t)) return;

    const { d: data } = event;
    const user = client.users.get(data.user_id);
    const channel = client.channels.get(data.channel_id);

    const message = await channel.fetchMessage(data.message_id);
    const member = message.guild.members.get(user.id);

    const emojiKey = (data.emoji.id) ? `${data.emoji.name}:${data.emoji.id}` : data.emoji.name;
    let reaction = message.reactions.get(emojiKey);

    if (!reaction) {
        // Create an object that can be passed through the event like normal
        const emoji = new Emoji(client.guilds.get(data.guild_id), data.emoji);
        reaction = new MessageReaction(message, emoji, 1, data.user_id === client.user.id);
    }

    let embedFooterText;
    if (message.embeds[0]) embedFooterText = message.embeds[0].footer.text;

    if (
        (message.author.id === client.user.id) && (message.content !== CONFIG.initialMessage ||
        (message.embeds[0] && (embedFooterText !== CONFIG.embedFooter)))
    ) {

        if (!CONFIG.embed && (message.embeds.length < 1)) {
            const re = `\\*\\*"(.+)?(?="\\*\\*)`;
            const role = message.content.match(re)[1];

            if (member.id !== client.user.id) {
                const guildRole = message.guild.roles.find(r => r.name === role);
                if (event.t === "MESSAGE_REACTION_ADD") member.addRole(guildRole.id);
                else if (event.t === "MESSAGE_REACTION_REMOVE") member.removeRole(guildRole.id);
            }
        } else if (CONFIG.embed && (message.embeds.length >= 1)) {
            const fields = message.embeds[0].fields;

            for (const { name, value } of fields) {
                if (member.id !== client.user.id) {
                    const guildRole = message.guild.roles.find(r => r.name === value);
                    if ((name === reaction.emoji.name) || (name === reaction.emoji.toString())) {
                        if (event.t === "MESSAGE_REACTION_ADD") member.addRole(guildRole.id);
                        else if (event.t === "MESSAGE_REACTION_REMOVE") member.removeRole(guildRole.id);
                    }
                }
            }
        }
    }
});