package cron

import (

"sync"

"time"

goLogger "github.com/pardnchiu/go-logger"

)

const (

defaultLogPath = "./logs/cron.log"

defaultLogMaxSize = 16 * 1024 * 1024

defaultLogMaxBackup = 5

)

type Log = goLogger.Log

type Logger = goLogger.Logger

type Config struct {

Log *Log

Location *time.Location

}

type cron struct {

logger *Logger

mutex sync.Mutex

wait sync.WaitGroup

heap taskHeap

chain taskChain

parser parser

stop chan struct{}

add chan *task

remove chan int64

removeAll chan struct{}

location *time.Location

next int64

running bool

}

type task struct {

ID int64

Description string

Schedule schedule

Action func()

Next time.Time

Prev time.Time

Enable bool

}

type schedule interface {

next(time.Time) time.Time

}

type scheduleResult struct {

minute,

hour,

dom,

month,

dow scheduleField

}

type scheduleField struct {

Value int // 具體數值

All bool // 是否匹配所有值（對應 "*"）

Step int // 步長值（對應 "*/n"）

}

type delayScheduleResult struct {

delay time.Duration

}

type taskHeap []*task

type taskChain []func(func()) func()

type parser struct{}