af83/edwig

package ls

import (
    "time"

    "bitbucket.org/enroute-mobi/ara/model"
)

type SituationLastChange struct {
    lastState

    recordedAt time.Time
    version    int
}

func NewSituationLastChange(situation *model.Situation, sub subscription) *SituationLastChange {
    gmlc := &SituationLastChange{}
    gmlc.SetSubscription(sub)
    gmlc.UpdateState(situation)
    return gmlc
}

func (slc *SituationLastChange) UpdateState(situation *model.Situation) bool {
    slc.recordedAt = situation.RecordedAt
    slc.version = situation.Version
    return true
}

func (slc *SituationLastChange) Haschanged(situation *model.Situation) bool {
    return !situation.RecordedAt.Equal(slc.recordedAt) ||
        situation.Version != slc.version
}