go.charczuk.com@v0.0.0-20240327042549-bc490516bd1a/sdk/cron/schedule.go (about)

     1  /*
     2  
     3  Copyright (c) 2023 - Present. Will Charczuk. All rights reserved.
     4  Use of this source code is governed by a MIT license that can be found in the LICENSE file at the root of the repository.
     5  
     6  */
     7  
     8  package cron
     9  
    10  import (
    11  	"time"
    12  )
    13  
    14  // Schedule is a type that provides a next runtime after a given previous runtime.
    15  type Schedule interface {
    16  	// GetNextRuntime should return the next runtime after a given previous runtime. If `after` is time.Time{} it should be assumed
    17  	// the job hasn't run yet. If time.Time{} is returned by the schedule it is inferred that the job should not run again.
    18  	Next(time.Time) time.Time
    19  }
    20  
    21  // ScheduleFunc is a function that implements schedule.
    22  type ScheduleFunc func(time.Time) time.Time
    23  
    24  // Next implements schedule.
    25  func (sf ScheduleFunc) Next(after time.Time) time.Time {
    26  	return sf(after)
    27  }