ainsleyclark/workplace

// Copyright 2022 Ainsley Clark. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package workplace

// ChunkMessage splits a string by length according to
// the chunkSize.
func ChunkMessage(s string, chunkSize int) []string {
    if len(s) == 0 {
        return nil
    }
    if chunkSize >= len(s) {
        return []string{s}
    }
    var chunks = make([]string, 0, (len(s)-1)/chunkSize+1)
    currentLen := 0
    currentStart := 0
    for i := range s {
        if currentLen == chunkSize {
            chunks = append(chunks, s[currentStart:i])
            currentLen = 0
            currentStart = i
        }
        currentLen++
    }
    chunks = append(chunks, s[currentStart:])
    return chunks
}