Method findSlackSafeSplitPoint

src/runtime/adapters/slack.ts:658–685

(text: string)

  }

  private findSlackSafeSplitPoint(text: string): number {
    const preferredBreaks = ["\n\n", "\n", " "];
    const minSplit = Math.floor(MAX_MESSAGE_LENGTH * 0.3);

    for (const token of preferredBreaks) {
      const index = this.findBestSlackSplitBefore(text, token);
      if (index >= minSplit) {
        return index;
      }
    }

    let low = 1;
    let high = text.length;
    let best = Math.min(text.length, MAX_MESSAGE_LENGTH);

    while (low <= high) {
      const mid = Math.floor((low + high) / 2);
      const candidate = text.slice(0, mid);
      if (this.isSlackMessageWithinLimit(candidate)) {
        best = mid;
        low = mid + 1;
      } else {
        high = mid - 1;
      }
    }

    return Math.max(1, best);
  }

  private findBestSlackSplitBefore(text: string, token: string): number {
    let fromIndex = Math.min(text.length, MAX_MESSAGE_LENGTH);