multi-stream-chatbot/util/messageFormatter.js

Chatbot framework that listens and sends messages to multiple streaming platforms simultaneously

class MessageFormatter {
    static createMessageParts(str, maxLength) {
        var partIndex = 0
        var currentPart = ""

        const tokensSplitBySpaces = str.split(" ")

        return tokensSplitBySpaces.reduce((acc, token, idx) => {
            if (token.length > maxLength) {
                throw new Error(
                    `Message part was longer than maxLength: ${maxLength}`
                )
            } else if (currentPart.length + token.length > maxLength) {
                currentPart = ""
                partIndex++
            } else if (idx > 0) {
                currentPart += " "
            }

            currentPart = currentPart + token
            acc[partIndex] = currentPart
            return acc
        }, [])
    }
}

module.exports = MessageFormatter