Class LocalDateTimeValue

packages/graph/src/TemporalTypes.ts:493–692

 * - hour, minute, second, millisecond, microsecond, nanosecond (from LocalTimeValue)
 */
export class LocalDateTimeValue implements TemporalValue {
  public readonly temporalType = "localdatetime";

  #year: number;
  #month: number;
  #day: number;
  #hour: number;
  #minute: number;
  #second: number;
  #nanosecond: number;

  public constructor(
    year: number,
    month: number,
    day: number,
    hour: number = 0,
    minute: number = 0,
    second: number = 0,
    nanosecond: number = 0,
  ) {
    this.#year = year;
    this.#month = month;
    this.#day = day;
    this.#hour = hour;
    this.#minute = minute;
    this.#second = second;
    this.#nanosecond = nanosecond;
  }

  /**
   * Create a LocalDateTimeValue from an ISO datetime string.
   * Format: YYYY-MM-DDTHH:MM:SS.nnnnnnnnn
   */
  public static fromString(iso: string): LocalDateTimeValue | null {
    const match = iso.match(/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})(?:\.(\d{1,9}))?$/);
    if (!match || !match[1] || !match[2] || !match[3] || !match[4] || !match[5] || !match[6])
      return null;

    const year = parseInt(match[1], 10);
    const month = parseInt(match[2], 10);
    const day = parseInt(match[3], 10);
    const hour = parseInt(match[4], 10);
    const minute = parseInt(match[5], 10);
    const second = parseInt(match[6], 10);

    let nanosecond = 0;
    if (match[7]) {
      const frac = match[7].padEnd(9, "0");
      nanosecond = parseInt(frac, 10);
    }

    return new LocalDateTimeValue(year, month, day, hour, minute, second, nanosecond);
  }

  /**
   * Create a LocalDateTimeValue from a map of components.
   */
  public static fromMap(map: Record<string, unknown>): LocalDateTimeValue | null {