// Calculate next build version based on the previous version
// Version formats are YYYYMMDD.1, YYYYMMDD.2, etc.
// If there is no previous version, start at Todays date and .1
export function calculateNextBuildVersion(latestVersion?: string | null): string {
  const today = new Date();
  const year = today.getFullYear();
  const month = today.getMonth() + 1;
  const day = today.getDate();
  const todayFormatted = `${year}${month < 10 ? "0" : ""}${month}${day < 10 ? "0" : ""}${day}`;

  if (!latestVersion) {
    return `${todayFormatted}.1`;
  }

  const [date, buildNumber] = latestVersion.split(".");

  if (date === todayFormatted) {
    const nextBuildNumber = parseInt(buildNumber, 10) + 1;
    return `${date}.${nextBuildNumber}`;
  }

  return `${todayFormatted}.1`;
}