fdgt-apis/api

// Local imports
import { CHEERMOTE_PREFIXES } from 'data/CHEERMOTE_PREFIXES'
import { DOLLARBUCK_CORRELATIONS } from 'data/DOLLARBUCK_CORRELATIONS'
import { incrementStat } from 'helpers/updateStat'





// Local constants
const { HOST } = process.env





export const defaults = {
    bitscount: 100,
}

/**
 * `bits` events are fired when a user sends a message to a Twitch channel that contains [`bits`](https://help.twitch.tv/s/article/guide-to-cheering-with-bits).
 *
 * @alias `bits`
 *
 * @param {number} bitscount=100 The number of bits to attach to the message.
 * @param {string} color - The color of the user's name in chat.
 * @param {string} message The body of the message.
 * @param {string} messageid - The ID of the message.
 * @param {string} timestamp - The millisecond timestamp when the message was sent.
 * @param {string} userid - The ID of the user sending the message.
 * @param {string} username - The username of the user sending the message.
 *
 * @example @lang off <caption>Fires a `bits` event with no message</caption>
 * bits
 *
 * @example @lang off <caption>Fires a `bits` event with a custom amount of bits and the message "Woohoo!"</caption>
 * bits --bitscount 999999 Woohoo!
 */
export const render = (args = {}) => {
    const {
        bitscount,
        color,
        channel,
        channelid,
        message,
        messageid,
        timestamp,
        userid,
        username,
    } = {
        ...defaults,
        ...args,
    }

    const emotes = []

    let processedMessage = message
    let totalBits = 0

    if (message) {
        const cheermotes = [...message.matchAll(new RegExp(`(?:${CHEERMOTE_PREFIXES.join('|')})(\\d+)`, 'giu'))]

        totalBits = cheermotes.reduce((accumulator, cheermote) => {
            return accumulator + parseInt(cheermote[1], 10)
        }, 0)
    }

    if (totalBits === 0) {
        totalBits = bitscount

        if (processedMessage) {
            processedMessage += ' '
        }

        processedMessage += `cheer${totalBits}`
    }

    incrementStat('events/bits')
    incrementStat('totalBits', totalBits)
    incrementStat('dollarbucksSaved', totalBits * DOLLARBUCK_CORRELATIONS['bit'])

    return {
        'badge-info': [],
        badges: [],
        bits: totalBits,
        color,
        'display-name': username,
        emotes: null,
        flags: null,
        id: messageid,
        mod: 0,
        'room-id': channelid,
        subscriber: 0,
        'tmi-sent-ts': timestamp,
        turbo: 0,
        'user-id': userid,
        'user-type': null,
        message: `${username}!${username}@${username}.${HOST} PRIVMSG #${channel} :${processedMessage}`,
    }
}