package fire

import (
	"time"

	"cloud.google.com/go/firestore"
)

type cudTime struct {
	Time    time.Time
	TimeSec int64
}

// newCudTime returns a new newCudTime pointer
func NewCudTime() *cudTime {
	now, _ := NowMM()
	sec := TimestampMilli(*now)
	return &cudTime{Time: *now, TimeSec: sec}
}

func (up *cudTime) toMapForCreate() map[string]interface{} {
	val := make(map[string]interface{})
	val["delete_time"] = 0
	val["is_deleted"] = false
	val["update_time"] = up.TimeSec
	val["updated_date"] = up.Time
	val["created_date"] = up.Time
	return val
}

func (up *cudTime) toMapForUpdate() map[string]interface{} {
	val := make(map[string]interface{})
	val["update_time"] = up.TimeSec
	val["updated_date"] = up.Time
	return val
}

func (up *cudTime) toMapForDelete() map[string]interface{} {
	val := make(map[string]interface{})
	val["is_deleted"] = true
	val["update_time"] = up.TimeSec
	val["delete_time"] = up.TimeSec
	val["updated_date"] = up.Time
	val["deleted_date"] = up.Time
	return val
}

func (up *cudTime) C(tx *firestore.Transaction, docRefs ...*firestore.DocumentRef) error {
	return up._op(tx, up.toMapForCreate(), docRefs...)
}
func (up *cudTime) U(tx *firestore.Transaction, docRefs ...*firestore.DocumentRef) error {
	return up._op(tx, up.toMapForUpdate(), docRefs...)
}

func (up *cudTime) D(tx *firestore.Transaction, docRefs ...*firestore.DocumentRef) error {
	return up._op(tx, up.toMapForDelete(), docRefs...)
}

func (up *cudTime) _op(tx *firestore.Transaction, data map[string]interface{}, docRefs ...*firestore.DocumentRef) error {
	if len(docRefs) <= 0 {
		return nil
	}
	for _, docRef := range docRefs {
		if err := tx.Set(docRef, data, firestore.MergeAll); err != nil {
			return err
		}
	}
	return nil
}