package spacesyncer

import (
	"time"

	"gitlink.org.cn/cloudream/common/pkgs/logger"
	"gitlink.org.cn/cloudream/common/utils/sort2"
	clitypes "gitlink.org.cn/cloudream/jcs-pub/client/types"
)

func triggerOnce(syncer *SpaceSyncer, task *task) {
	go func() {
		log := logger.WithField("Mod", logMod)
		execute(syncer, task)

		syncer.lock.Lock()
		defer syncer.lock.Unlock()

		tsk := syncer.tasks[task.Task.TaskID]
		if tsk == nil {
			return
		}

		tsk.CancelFn()
		delete(syncer.tasks, task.Task.TaskID)

		err := syncer.db.SpaceSyncTask().Delete(syncer.db.DefCtx(), task.Task.TaskID)
		if err != nil {
			log.Warnf("delete task %v from db: %v", task.Task.TaskID, err)
		}
	}()
}

func triggerInterval(syncer *SpaceSyncer, task *task, trigger *clitypes.SpaceSyncTriggerInterval) {
	go func() {
		log := logger.WithField("Mod", logMod)

		ticker := time.NewTicker(time.Duration(trigger.Interval) * time.Second)
		defer ticker.Stop()

	loop:
		for {
			select {
			case <-ticker.C:
				execute(syncer, task)
			case <-task.Context.Done():
				break loop
			}
		}

		syncer.lock.Lock()
		defer syncer.lock.Unlock()

		tsk := syncer.tasks[task.Task.TaskID]
		if tsk == nil {
			return
		}

		tsk.CancelFn()
		delete(syncer.tasks, task.Task.TaskID)

		err := syncer.db.SpaceSyncTask().Delete(syncer.db.DefCtx(), task.Task.TaskID)
		if err != nil {
			log.Warnf("delete task %v from db: %v", task.Task.TaskID, err)
		}
	}()
}

func triggerAt(syncer *SpaceSyncer, task *task, trigger *clitypes.SpaceSyncTriggerAt) {
	go func() {
		log := logger.WithField("Mod", logMod)

		atTimes := sort2.Sort(trigger.At, func(l, r time.Time) int {
			return l.Compare(r)
		})

	loop:
		for _, at := range atTimes {
			nowTime := time.Now()
			if nowTime.After(at) {
				continue
			}

			select {
			case <-time.After(at.Sub(nowTime)):
				execute(syncer, task)

			case <-task.Context.Done():
				break loop
			}
		}

		syncer.lock.Lock()
		defer syncer.lock.Unlock()

		tsk := syncer.tasks[task.Task.TaskID]
		if tsk == nil {
			return
		}

		tsk.CancelFn()
		delete(syncer.tasks, task.Task.TaskID)

		err := syncer.db.SpaceSyncTask().Delete(syncer.db.DefCtx(), task.Task.TaskID)
		if err != nil {
			log.Warnf("delete task %v from db: %v", task.Task.TaskID, err)
		}
	}()
}