import { Job } from ".";

export interface JobOptions {
  timezone?: string;
  startDate?: Date | number;
  endDate?: Date | number;
  skipDays?: string;
  skipImmediate?: boolean;
}

/**
 * Sets a job to repeat every X amount of time
 * @name Job#repeatEvery
 * @function
 * @param interval repeat every X
 * @param options options to use for job
 */
export const repeatEvery = function (
  this: Job,
  interval: string,
  options: JobOptions = {}
): Job {
  this.attrs.repeatInterval = interval;
  this.attrs.repeatTimezone = options.timezone ? options.timezone : null;
  // Following options are added to handle start day
  // and cases like run job every x days (skip some days)
  this.attrs.startDate = options.startDate ?? null;
  this.attrs.endDate = options.endDate ?? null;
  this.attrs.skipDays = options.skipDays ?? null;
  if (options.skipImmediate) {
    // Set the lastRunAt time to the nextRunAt so that the new nextRunAt will be computed in reference to the current value.
    this.attrs.lastRunAt = this.attrs.nextRunAt || new Date();
    this.computeNextRunAt();
    this.attrs.lastRunAt = undefined;
  } else {
    this.computeNextRunAt();
  }

  return this;
};