daily checklist can edit empty kandang kosong

internal/database/migrations/20260517112459_create_daily_checklist_empty_kandangs.down.sql

@@ -0,0 +1,5 @@
+BEGIN;
+
+DROP TABLE IF EXISTS daily_checklist_empty_kandangs;
+
+COMMIT;

internal/database/migrations/20260517112459_create_daily_checklist_empty_kandangs.up.sql

@@ -0,0 +1,60 @@
+BEGIN;
+
+CREATE TABLE daily_checklist_empty_kandangs (
+  id                  bigint GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
+  daily_checklist_id  bigint NOT NULL,
+  kandang_id          bigint NOT NULL,
+  start_date          date NOT NULL,
+  end_date            date NOT NULL,
+  created_by          bigint,
+  deleted_by          bigint,
+  created_at          timestamptz NOT NULL DEFAULT now(),
+  updated_at          timestamptz NOT NULL DEFAULT now(),
+  deleted_at          timestamptz,
+
+  CONSTRAINT fk_dcek_daily_checklist
+    FOREIGN KEY (daily_checklist_id) REFERENCES daily_checklists(id) ON DELETE CASCADE,
+  CONSTRAINT fk_dcek_kandang
+    FOREIGN KEY (kandang_id) REFERENCES kandangs(id) ON DELETE CASCADE,
+  CONSTRAINT fk_dcek_created_by
+    FOREIGN KEY (created_by) REFERENCES users(id) ON DELETE SET NULL,
+  CONSTRAINT fk_dcek_deleted_by
+    FOREIGN KEY (deleted_by) REFERENCES users(id) ON DELETE SET NULL,
+  CONSTRAINT ck_dcek_range CHECK (end_date >= start_date)
+);
+
+CREATE INDEX idx_dcek_kandang_range
+  ON daily_checklist_empty_kandangs (kandang_id, start_date, end_date)
+  WHERE deleted_at IS NULL;
+
+CREATE UNIQUE INDEX idx_dcek_daily_checklist_unique
+  ON daily_checklist_empty_kandangs (daily_checklist_id)
+  WHERE deleted_at IS NULL;
+
+INSERT INTO daily_checklist_empty_kandangs (
+  daily_checklist_id, kandang_id, start_date, end_date, created_by, created_at, updated_at
+)
+SELECT
+  dc.id,
+  dc.kandang_id,
+  dc.date AS start_date,
+  COALESCE(
+    (SELECT (next_dc.date - INTERVAL '1 day')::date
+     FROM daily_checklists next_dc
+     WHERE next_dc.kandang_id = dc.kandang_id
+       AND next_dc.date > dc.date
+       AND next_dc.category <> 'empty_kandang'
+       AND (next_dc.status IS NULL OR next_dc.status <> 'REJECTED')
+       AND next_dc.deleted_at IS NULL
+     ORDER BY next_dc.date ASC
+     LIMIT 1),
+    dc.date
+  ) AS end_date,
+  dc.created_by,
+  dc.created_at,
+  dc.updated_at
+FROM daily_checklists dc
+WHERE dc.category = 'empty_kandang'
+  AND dc.deleted_at IS NULL;
+
+COMMIT;

internal/entities/daily-checklist-empty-kandang.go

@@ -0,0 +1,27 @@
+package entities
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+type DailyChecklistEmptyKandang struct {
+	Id               uint      `gorm:"primaryKey"`
+	DailyChecklistId uint      `gorm:"not null"`
+	KandangId        uint      `gorm:"not null"`
+	StartDate        time.Time `gorm:"type:date;not null"`
+	EndDate          time.Time `gorm:"type:date;not null"`
+	CreatedBy        *uint
+	DeletedBy        *uint
+	CreatedAt        time.Time      `gorm:"autoCreateTime"`
+	UpdatedAt        time.Time      `gorm:"autoUpdateTime"`
+	DeletedAt        gorm.DeletedAt `gorm:"index" json:"-"`
+
+	DailyChecklist *DailyChecklist `gorm:"foreignKey:DailyChecklistId;references:Id"`
+	Kandang        *KandangGroup   `gorm:"foreignKey:KandangId;references:Id"`
+}
+
+func (DailyChecklistEmptyKandang) TableName() string {
+	return "daily_checklist_empty_kandangs"
+}

internal/entities/daily-checklist.go

@@ -23,11 +23,12 @@ type DailyChecklist struct {
 	UpdatedAt    time.Time      `gorm:"autoUpdateTime"`
 	DeletedAt    gorm.DeletedAt `gorm:"index" json:"-"`
 
-	Kandang   KandangGroup         `gorm:"foreignKey:KandangId;references:Id"`
-	Checklist *Checklist           `gorm:"foreignKey:ChecklistId;references:Id"`
-	Creator   *User                `gorm:"foreignKey:CreatedBy;references:Id"`
-	Deleter   *User                `gorm:"foreignKey:DeletedBy;references:Id"`
-	Tasks     []DailyChecklistTask `gorm:"foreignKey:DailyChecklistId;references:Id"`
+	Kandang      KandangGroup                `gorm:"foreignKey:KandangId;references:Id"`
+	Checklist    *Checklist                  `gorm:"foreignKey:ChecklistId;references:Id"`
+	Creator      *User                       `gorm:"foreignKey:CreatedBy;references:Id"`
+	Deleter      *User                       `gorm:"foreignKey:DeletedBy;references:Id"`
+	Tasks        []DailyChecklistTask        `gorm:"foreignKey:DailyChecklistId;references:Id"`
+	EmptyKandang *DailyChecklistEmptyKandang `gorm:"foreignKey:DailyChecklistId;references:Id"`
 }
 
 type DailyChecklistPhase struct {

internal/modules/daily-checklists/dto/daily-checklist.dto.go

@@ -42,6 +42,13 @@ type DailyChecklistDetailDTO struct {
 	TotalActivity     int                                `json:"total_activity"`
 	Progress          float64                            `json:"progress"`
 	DocumentURLs      []DailyChecklistDocumentDTO        `json:"document_urls"`
+	EmptyKandang      *DailyChecklistEmptyKandangDTO     `json:"empty_kandang,omitempty"`
+}
+
+type DailyChecklistEmptyKandangDTO struct {
+	Id        uint      `json:"id"`
+	StartDate time.Time `json:"start_date"`
+	EndDate   time.Time `json:"end_date"`
 }
 
 type DailyChecklistDocumentDTO struct {
@@ -180,6 +187,17 @@ func ToDailyChecklistListDTO(e entity.DailyChecklist) DailyChecklistListDTO {
 	}
 }
 
+func ToDailyChecklistEmptyKandangDTO(e *entity.DailyChecklistEmptyKandang) *DailyChecklistEmptyKandangDTO {
+	if e == nil || e.Id == 0 {
+		return nil
+	}
+	return &DailyChecklistEmptyKandangDTO{
+		Id:        e.Id,
+		StartDate: e.StartDate,
+		EndDate:   e.EndDate,
+	}
+}
+
 func ToDailyChecklistDetailDTO(checklist entity.DailyChecklist, phases []entity.DailyChecklistPhase, tasks []entity.DailyChecklistActivityTask, assignedEmployees []entity.Employee, totalActivities int, progress float64, documentURLs []DailyChecklistDocumentDTO) DailyChecklistDetailDTO {
 	phaseDTOs := make([]DailyChecklistPhaseDTO, 0, len(phases))
 	for _, phase := range phases {
@@ -241,5 +259,6 @@ func ToDailyChecklistDetailDTO(checklist entity.DailyChecklist, phases []entity.
 		TotalActivity:         totalActivities,
 		Progress:              progress,
 		DocumentURLs:          documentURLs,
+		EmptyKandang:          ToDailyChecklistEmptyKandangDTO(checklist.EmptyKandang),
 	}
 }

internal/modules/daily-checklists/module.go

@@ -22,6 +22,7 @@ type DailyChecklistModule struct{}
 
 func (DailyChecklistModule) RegisterRoutes(router fiber.Router, db *gorm.DB, validate *validator.Validate) {
 	dailyChecklistRepo := rDailyChecklist.NewDailyChecklistRepository(db)
+	emptyKandangRepo := rDailyChecklist.NewDailyChecklistEmptyKandangRepository(db)
 	phasesRepo := rPhases.NewPhasesRepository(db)
 	userRepo := rUser.NewUserRepository(db)
 	documentRepo := commonRepo.NewDocumentRepository(db)
@@ -30,7 +31,7 @@ func (DailyChecklistModule) RegisterRoutes(router fiber.Router, db *gorm.DB, val
 		panic(fmt.Sprintf("failed to create document service: %v", err))
 	}
 
-	dailyChecklistService := sDailyChecklist.NewDailyChecklistService(dailyChecklistRepo, phasesRepo, validate, documentSvc)
+	dailyChecklistService := sDailyChecklist.NewDailyChecklistService(dailyChecklistRepo, emptyKandangRepo, phasesRepo, validate, documentSvc)
 	userService := sUser.NewUserService(userRepo, validate)
 
 	DailyChecklistRoutes(router, userService, dailyChecklistService)

internal/modules/daily-checklists/repositories/daily-checklist-empty-kandang.repository.go

@@ -0,0 +1,98 @@
+package repository
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"gitlab.com/mbugroup/lti-api.git/internal/common/repository"
+	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
+	"gorm.io/gorm"
+)
+
+type DailyChecklistEmptyKandangRepository interface {
+	repository.BaseRepository[entity.DailyChecklistEmptyKandang]
+	FindByDailyChecklistID(ctx context.Context, dailyChecklistID uint) (*entity.DailyChecklistEmptyKandang, error)
+	FindOverlapping(ctx context.Context, kandangID uint, startDate, endDate time.Time, excludeDailyChecklistID uint) (*entity.DailyChecklistEmptyKandang, error)
+	FindActiveCoveringDate(ctx context.Context, kandangID uint, date time.Time) (*entity.DailyChecklistEmptyKandang, error)
+	FindOverlappingInRange(ctx context.Context, kandangIDs []uint, rangeStart, rangeEnd time.Time) ([]entity.DailyChecklistEmptyKandang, error)
+	SoftDeleteByDailyChecklistID(ctx context.Context, dailyChecklistID uint, actorID *uint) error
+}
+
+type DailyChecklistEmptyKandangRepositoryImpl struct {
+	*repository.BaseRepositoryImpl[entity.DailyChecklistEmptyKandang]
+}
+
+func NewDailyChecklistEmptyKandangRepository(db *gorm.DB) DailyChecklistEmptyKandangRepository {
+	return &DailyChecklistEmptyKandangRepositoryImpl{
+		BaseRepositoryImpl: repository.NewBaseRepository[entity.DailyChecklistEmptyKandang](db),
+	}
+}
+
+func (r *DailyChecklistEmptyKandangRepositoryImpl) FindByDailyChecklistID(ctx context.Context, dailyChecklistID uint) (*entity.DailyChecklistEmptyKandang, error) {
+	var rec entity.DailyChecklistEmptyKandang
+	if err := r.DB().WithContext(ctx).
+		Where("daily_checklist_id = ?", dailyChecklistID).
+		First(&rec).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &rec, nil
+}
+
+func (r *DailyChecklistEmptyKandangRepositoryImpl) FindOverlapping(ctx context.Context, kandangID uint, startDate, endDate time.Time, excludeDailyChecklistID uint) (*entity.DailyChecklistEmptyKandang, error) {
+	var rec entity.DailyChecklistEmptyKandang
+	query := r.DB().WithContext(ctx).
+		Where("kandang_id = ? AND start_date <= ? AND end_date >= ?", kandangID, endDate, startDate)
+	if excludeDailyChecklistID > 0 {
+		query = query.Where("daily_checklist_id <> ?", excludeDailyChecklistID)
+	}
+	if err := query.First(&rec).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &rec, nil
+}
+
+func (r *DailyChecklistEmptyKandangRepositoryImpl) FindActiveCoveringDate(ctx context.Context, kandangID uint, date time.Time) (*entity.DailyChecklistEmptyKandang, error) {
+	var rec entity.DailyChecklistEmptyKandang
+	if err := r.DB().WithContext(ctx).
+		Where("kandang_id = ? AND start_date <= ? AND end_date >= ?", kandangID, date, date).
+		First(&rec).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &rec, nil
+}
+
+func (r *DailyChecklistEmptyKandangRepositoryImpl) FindOverlappingInRange(ctx context.Context, kandangIDs []uint, rangeStart, rangeEnd time.Time) ([]entity.DailyChecklistEmptyKandang, error) {
+	if len(kandangIDs) == 0 {
+		return []entity.DailyChecklistEmptyKandang{}, nil
+	}
+	var recs []entity.DailyChecklistEmptyKandang
+	if err := r.DB().WithContext(ctx).
+		Where("kandang_id IN ? AND start_date <= ? AND end_date >= ?", kandangIDs, rangeEnd, rangeStart).
+		Find(&recs).Error; err != nil {
+		return nil, err
+	}
+	return recs, nil
+}
+
+func (r *DailyChecklistEmptyKandangRepositoryImpl) SoftDeleteByDailyChecklistID(ctx context.Context, dailyChecklistID uint, actorID *uint) error {
+	updates := map[string]any{
+		"deleted_at": time.Now(),
+	}
+	if actorID != nil {
+		updates["deleted_by"] = *actorID
+	}
+	return r.DB().WithContext(ctx).
+		Model(&entity.DailyChecklistEmptyKandang{}).
+		Where("daily_checklist_id = ? AND deleted_at IS NULL", dailyChecklistID).
+		Updates(updates).Error
+}

internal/modules/daily-checklists/services/daily-checklist.service.go

@@ -44,11 +44,12 @@ type DailyChecklistService interface {
 }
 
 type dailyChecklistService struct {
-	Log         *logrus.Logger
-	Validate    *validator.Validate
-	Repository  repository.DailyChecklistRepository
-	PhaseRepo   phaseRepo.PhasesRepository
-	DocumentSvc commonSvc.DocumentService
+	Log              *logrus.Logger
+	Validate         *validator.Validate
+	Repository       repository.DailyChecklistRepository
+	EmptyKandangRepo repository.DailyChecklistEmptyKandangRepository
+	PhaseRepo        phaseRepo.PhasesRepository
+	DocumentSvc      commonSvc.DocumentService
 }
 
 type DailyChecklistDocument struct {
@@ -130,20 +131,24 @@ const (
 	dailyChecklistStatusDraft                     = "DRAFT"
 	dailyChecklistErrDateOverlapExist             = "DailyChecklist cannot be created because at least one date in range already has a checklist"
 	dailyChecklistErrDeletedNonEmptyKandangExists = "DailyChecklist cannot be created as empty_kandang because a deleted non-empty_kandang checklist exists for this date"
+	dailyChecklistErrEmptyKandangRangeOverlap     = "Empty kandang range overlaps with an existing empty kandang period for this kandang"
+	dailyChecklistErrDateInsideEmptyKandang       = "Tanggal berada dalam periode kandang kosong untuk kandang ini"
+	dailyChecklistErrEmptyKandangEndDateInvalid   = "empty_kandang_end_date harus >= date"
 )
 
-func NewDailyChecklistService(repo repository.DailyChecklistRepository, phaseRepo phaseRepo.PhasesRepository, validate *validator.Validate, documentSvc commonSvc.DocumentService) DailyChecklistService {
+func NewDailyChecklistService(repo repository.DailyChecklistRepository, emptyKandangRepo repository.DailyChecklistEmptyKandangRepository, phaseRepo phaseRepo.PhasesRepository, validate *validator.Validate, documentSvc commonSvc.DocumentService) DailyChecklistService {
 	return &dailyChecklistService{
-		Log:         utils.Log,
-		Validate:    validate,
-		Repository:  repo,
-		PhaseRepo:   phaseRepo,
-		DocumentSvc: documentSvc,
+		Log:              utils.Log,
+		Validate:         validate,
+		Repository:       repo,
+		EmptyKandangRepo: emptyKandangRepo,
+		PhaseRepo:        phaseRepo,
+		DocumentSvc:      documentSvc,
 	}
 }
 
 func (s dailyChecklistService) withRelations(db *gorm.DB) *gorm.DB {
-	return db.Preload("Kandang")
+	return db.Preload("Kandang").Preload("EmptyKandang")
 }
 
 func (s dailyChecklistService) ensureChecklistAccess(c *fiber.Ctx, checklistID uint) error {
@@ -529,6 +534,23 @@ func (s *dailyChecklistService) CreateOne(c *fiber.Ctx, req *validation.Create)
 		category = dailyChecklistCategoryEmptyKandang
 	}
 
+	var emptyEndDate time.Time
+	if category == dailyChecklistCategoryEmptyKandang {
+		trimmedEnd := strings.TrimSpace(req.EmptyKandangEndDate)
+		if trimmedEnd == "" {
+			emptyEndDate = date
+		} else {
+			parsedEnd, parseErr := time.Parse(dailyChecklistDateLayout, trimmedEnd)
+			if parseErr != nil {
+				return nil, fiber.NewError(fiber.StatusBadRequest, "invalid empty_kandang_end_date format, use YYYY-MM-DD")
+			}
+			if parsedEnd.Before(date) {
+				return nil, fiber.NewError(fiber.StatusBadRequest, dailyChecklistErrEmptyKandangEndDateInvalid)
+			}
+			emptyEndDate = parsedEnd
+		}
+	}
+
 	targetID := uint(0)
 
 	err = s.Repository.DB().WithContext(c.Context()).Transaction(func(tx *gorm.DB) error {
@@ -537,25 +559,39 @@ func (s *dailyChecklistService) CreateOne(c *fiber.Ctx, req *validation.Create)
 		}
 
 		if category == dailyChecklistCategoryEmptyKandang {
-			if err := s.validateNoChecklistOverlapForEmptyKandang(tx, req.KandangId, date, date); err != nil {
+			if err := s.validateNoNormalChecklistInRange(tx, req.KandangId, date, emptyEndDate, 0); err != nil {
+				return err
+			}
+			if err := s.validateNoEmptyKandangRangeOverlap(tx, req.KandangId, date, emptyEndDate, 0); err != nil {
+				return err
+			}
+			if err := s.validateNoExistingEmptyKandangInRange(tx, req.KandangId, date, emptyEndDate, 0); err != nil {
 				return err
 			}
 			if err := s.validateNoDeletedNonEmptyKandangForDate(tx, req.KandangId, date); err != nil {
 				return err
 			}
 		} else {
-			conflictID := uint(0)
-
-			if err := s.validateNoEmptyKandangConflict(tx, req.KandangId, date, date, category, status, &conflictID); err != nil {
+			if err := s.validateDateNotInEmptyKandangRange(tx, req.KandangId, date, 0); err != nil {
 				return err
 			}
-			if conflictID > 0 {
-				targetID = conflictID
-				return nil
+			if err := s.validateDateNotInExistingEmptyKandangChecklist(tx, req.KandangId, date, 0); err != nil {
+				return err
 			}
 		}
 
-		return s.createOrReuseSingleDailyChecklist(tx, req.KandangId, date, category, status, &targetID)
+		if err := s.createOrReuseSingleDailyChecklist(tx, req.KandangId, date, category, status, &targetID); err != nil {
+			return err
+		}
+
+		if category == dailyChecklistCategoryEmptyKandang {
+			actorID, _ := m.ActorIDFromContext(c)
+			if err := s.upsertEmptyKandangRange(tx, targetID, req.KandangId, date, emptyEndDate, actorID); err != nil {
+				return err
+			}
+		}
+
+		return nil
 	})
 	if err != nil {
 		s.Log.Errorf("Failed to create/upsert dailyChecklist: %+v", err)
@@ -585,41 +621,118 @@ func (s *dailyChecklistService) lockKandangForChecklistCreation(tx *gorm.DB, kan
 	return nil
 }
 
-func (s *dailyChecklistService) validateNoChecklistOverlapForEmptyKandang(tx *gorm.DB, kandangID uint, startDate, endDate time.Time) error {
+func (s *dailyChecklistService) validateNoNormalChecklistInRange(tx *gorm.DB, kandangID uint, startDate, endDate time.Time, excludeDCID uint) error {
+	q := tx.Model(&entity.DailyChecklist{}).
+		Where("kandang_id = ? AND date BETWEEN ? AND ? AND category <> ? AND deleted_at IS NULL",
+			kandangID, startDate, endDate, dailyChecklistCategoryEmptyKandang)
+	if excludeDCID > 0 {
+		q = q.Where("id <> ?", excludeDCID)
+	}
 	var conflictCount int64
-	if err := tx.Model(&entity.DailyChecklist{}).
-		Where("kandang_id = ? AND date BETWEEN ? AND ? AND deleted_at IS NULL", kandangID, startDate, endDate).
-		Count(&conflictCount).Error; err != nil {
+	if err := q.Count(&conflictCount).Error; err != nil {
 		return err
 	}
-
 	if conflictCount > 0 {
 		return fiber.NewError(fiber.StatusConflict, dailyChecklistErrDateOverlapExist)
 	}
-
 	return nil
 }
 
-func (s *dailyChecklistService) validateNoEmptyKandangConflict(tx *gorm.DB, kandangID uint, startDate, endDate time.Time, newCategory, newStatus string, conflictID *uint) error {
-	var existing entity.DailyChecklist
-	if err := tx.Where("kandang_id = ? AND date BETWEEN ? AND ? AND category = ? AND deleted_at IS NULL",
-		kandangID, startDate, endDate, dailyChecklistCategoryEmptyKandang).
-		First(&existing).Error; err != nil {
+func (s *dailyChecklistService) validateNoEmptyKandangRangeOverlap(tx *gorm.DB, kandangID uint, startDate, endDate time.Time, excludeDCID uint) error {
+	q := tx.Model(&entity.DailyChecklistEmptyKandang{}).
+		Where("kandang_id = ? AND start_date <= ? AND end_date >= ?", kandangID, endDate, startDate)
+	if excludeDCID > 0 {
+		q = q.Where("daily_checklist_id <> ?", excludeDCID)
+	}
+	var overlapCount int64
+	if err := q.Count(&overlapCount).Error; err != nil {
+		return err
+	}
+	if overlapCount > 0 {
+		return fiber.NewError(fiber.StatusConflict, dailyChecklistErrEmptyKandangRangeOverlap)
+	}
+	return nil
+}
+
+func (s *dailyChecklistService) validateDateNotInEmptyKandangRange(tx *gorm.DB, kandangID uint, date time.Time, excludeDCID uint) error {
+	q := tx.Model(&entity.DailyChecklistEmptyKandang{}).
+		Where("kandang_id = ? AND start_date <= ? AND end_date >= ?", kandangID, date, date)
+	if excludeDCID > 0 {
+		q = q.Where("daily_checklist_id <> ?", excludeDCID)
+	}
+	var rec entity.DailyChecklistEmptyKandang
+	if err := q.First(&rec).Error; err != nil {
 		if errors.Is(err, gorm.ErrRecordNotFound) {
 			return nil
 		}
 		return err
 	}
+	return fiber.NewError(fiber.StatusConflict, dailyChecklistErrDateInsideEmptyKandang)
+}
 
-	if err := tx.Model(&entity.DailyChecklist{}).Where("id = ?", existing.Id).Updates(map[string]interface{}{
-		"category": newCategory,
-		"status":   newStatus,
-	}).Error; err != nil {
+func (s *dailyChecklistService) validateNoExistingEmptyKandangInRange(tx *gorm.DB, kandangID uint, startDate, endDate time.Time, excludeDCID uint) error {
+	q := tx.Model(&entity.DailyChecklist{}).
+		Where("kandang_id = ? AND date BETWEEN ? AND ? AND category = ? AND deleted_at IS NULL",
+			kandangID, startDate, endDate, dailyChecklistCategoryEmptyKandang)
+	if excludeDCID > 0 {
+		q = q.Where("id <> ?", excludeDCID)
+	}
+	var conflictCount int64
+	if err := q.Count(&conflictCount).Error; err != nil {
+		return err
+	}
+	if conflictCount > 0 {
+		return fiber.NewError(fiber.StatusConflict, dailyChecklistErrEmptyKandangRangeOverlap)
+	}
+	return nil
+}
+
+func (s *dailyChecklistService) validateDateNotInExistingEmptyKandangChecklist(tx *gorm.DB, kandangID uint, date time.Time, excludeDCID uint) error {
+	q := tx.Model(&entity.DailyChecklist{}).
+		Where("kandang_id = ? AND date = ? AND category = ? AND deleted_at IS NULL",
+			kandangID, date, dailyChecklistCategoryEmptyKandang)
+	if excludeDCID > 0 {
+		q = q.Where("id <> ?", excludeDCID)
+	}
+	var conflictCount int64
+	if err := q.Count(&conflictCount).Error; err != nil {
+		return err
+	}
+	if conflictCount > 0 {
+		return fiber.NewError(fiber.StatusConflict, dailyChecklistErrDateInsideEmptyKandang)
+	}
+	return nil
+}
+
+func (s *dailyChecklistService) upsertEmptyKandangRange(tx *gorm.DB, dailyChecklistID, kandangID uint, startDate, endDate time.Time, actorID uint) error {
+	var existing entity.DailyChecklistEmptyKandang
+	err := tx.Where("daily_checklist_id = ?", dailyChecklistID).First(&existing).Error
+	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
 		return err
 	}
 
-	*conflictID = existing.Id
-	return nil
+	if err == nil {
+		return tx.Model(&entity.DailyChecklistEmptyKandang{}).
+			Where("id = ?", existing.Id).
+			Updates(map[string]any{
+				"kandang_id": kandangID,
+				"start_date": startDate,
+				"end_date":   endDate,
+				"updated_at": time.Now(),
+			}).Error
+	}
+
+	record := &entity.DailyChecklistEmptyKandang{
+		DailyChecklistId: dailyChecklistID,
+		KandangId:        kandangID,
+		StartDate:        startDate,
+		EndDate:          endDate,
+	}
+	if actorID > 0 {
+		actor := actorID
+		record.CreatedBy = &actor
+	}
+	return tx.Create(record).Error
 }
 
 func (s *dailyChecklistService) validateNoDeletedNonEmptyKandangForDate(tx *gorm.DB, kandangID uint, date time.Time) error {
@@ -900,11 +1013,52 @@ func (s *dailyChecklistService) UpdateByPut(c *fiber.Ctx, req *validation.Create
 
 	status := req.Status
 
+	var emptyEndDate time.Time
+	if category == dailyChecklistCategoryEmptyKandang {
+		trimmedEnd := strings.TrimSpace(req.EmptyKandangEndDate)
+		if trimmedEnd == "" {
+			emptyEndDate = date
+		} else {
+			parsedEnd, parseErr := time.Parse(dailyChecklistDateLayout, trimmedEnd)
+			if parseErr != nil {
+				return nil, fiber.NewError(fiber.StatusBadRequest, "invalid empty_kandang_end_date format, use YYYY-MM-DD")
+			}
+			if parsedEnd.Before(date) {
+				return nil, fiber.NewError(fiber.StatusBadRequest, dailyChecklistErrEmptyKandangEndDateInvalid)
+			}
+			emptyEndDate = parsedEnd
+		}
+	}
+
 	err = s.Repository.DB().WithContext(c.Context()).Transaction(func(tx *gorm.DB) error {
 		if err := s.lockKandangForChecklistCreation(tx, req.KandangId); err != nil {
 			return err
 		}
 
+		var existing entity.DailyChecklist
+		if err := tx.Where("id = ? AND deleted_at IS NULL", id).First(&existing).Error; err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return fiber.NewError(fiber.StatusNotFound, "DailyChecklist not found")
+			}
+			return err
+		}
+
+		existingIsEmpty := existing.Category == dailyChecklistCategoryEmptyKandang
+		newIsEmpty := category == dailyChecklistCategoryEmptyKandang
+
+		if newIsEmpty {
+			if err := s.validateNoNormalChecklistInRange(tx, req.KandangId, date, emptyEndDate, id); err != nil {
+				return err
+			}
+			if err := s.validateNoEmptyKandangRangeOverlap(tx, req.KandangId, date, emptyEndDate, id); err != nil {
+				return err
+			}
+		} else {
+			if err := s.validateDateNotInEmptyKandangRange(tx, req.KandangId, date, id); err != nil {
+				return err
+			}
+		}
+
 		var conflictCount int64
 		if err := tx.Model(&entity.DailyChecklist{}).
 			Where("id <> ? AND date = ? AND kandang_id = ? AND category = ? AND deleted_at IS NULL",
@@ -928,6 +1082,26 @@ func (s *dailyChecklistService) UpdateByPut(c *fiber.Ctx, req *validation.Create
 		if result.RowsAffected == 0 {
 			return gorm.ErrRecordNotFound
 		}
+
+		actorID, _ := m.ActorIDFromContext(c)
+		if newIsEmpty {
+			if err := s.upsertEmptyKandangRange(tx, id, req.KandangId, date, emptyEndDate, actorID); err != nil {
+				return err
+			}
+		} else if existingIsEmpty {
+			updates := map[string]any{
+				"deleted_at": time.Now(),
+			}
+			if actorID > 0 {
+				updates["deleted_by"] = actorID
+			}
+			if err := tx.Model(&entity.DailyChecklistEmptyKandang{}).
+				Where("daily_checklist_id = ? AND deleted_at IS NULL", id).
+				Updates(updates).Error; err != nil {
+				return err
+			}
+		}
+
 		return nil
 	})
 	if err != nil {
@@ -968,6 +1142,15 @@ func (s dailyChecklistService) DeleteOne(c *fiber.Ctx, id uint) error {
 			return gorm.ErrRecordNotFound
 		}
 
+		if err := tx.Model(&entity.DailyChecklistEmptyKandang{}).
+			Where("daily_checklist_id = ? AND deleted_at IS NULL", id).
+			Updates(map[string]any{
+				"deleted_at": time.Now(),
+				"deleted_by": actorID,
+			}).Error; err != nil {
+			return err
+		}
+
 		return nil
 	}); err != nil {
 		if errors.Is(err, gorm.ErrRecordNotFound) {
@@ -1695,92 +1878,43 @@ func (s dailyChecklistService) GetReport(c *fiber.Ctx, params *validation.Report
 		}
 		firstDay := time.Date(params.Year, time.Month(params.Month), 1, 0, 0, 0, 0, time.UTC)
 		lastDay := firstDay.AddDate(0, 1, 0).AddDate(0, 0, -1)
-		today := time.Now().UTC().Truncate(24 * time.Hour)
 
-		type emptyKandangRec struct {
+		type emptyRangeRec struct {
 			KandangID uint
-			Date      time.Time
+			StartDate time.Time
+			EndDate   time.Time
 		}
-		var emptyRecs []emptyKandangRec
+		var rangeRecs []emptyRangeRec
 		if err := s.Repository.DB().WithContext(c.Context()).
-			Model(&entity.DailyChecklist{}).
-			Where("kandang_id IN ? AND category = ? AND date <= ? AND deleted_at IS NULL",
-				kandangIDs, dailyChecklistCategoryEmptyKandang, lastDay).
-			Select("kandang_id, date").
-			Scan(&emptyRecs).Error; err != nil {
-			s.Log.Errorf("Failed to get empty kandang records for report: %+v", err)
+			Model(&entity.DailyChecklistEmptyKandang{}).
+			Where("kandang_id IN ? AND start_date <= ? AND end_date >= ?",
+				kandangIDs, lastDay, firstDay).
+			Select("kandang_id, start_date, end_date").
+			Scan(&rangeRecs).Error; err != nil {
+			s.Log.Errorf("Failed to get empty kandang ranges for report: %+v", err)
 			return err
 		}
 
 		emptyDaysByKandang := make(map[uint]map[int]struct{})
 
-		if len(emptyRecs) > 0 {
-			minEmptyDate := emptyRecs[0].Date
-			for _, rec := range emptyRecs[1:] {
-				if rec.Date.Before(minEmptyDate) {
-					minEmptyDate = rec.Date
-				}
+		for _, rec := range rangeRecs {
+			effectiveStart := rec.StartDate
+			if effectiveStart.Before(firstDay) {
+				effectiveStart = firstDay
+			}
+			effectiveEnd := rec.EndDate
+			if effectiveEnd.After(lastDay) {
+				effectiveEnd = lastDay
+			}
+			if effectiveStart.After(effectiveEnd) {
+				continue
 			}
 
-			type checklistDateRec struct {
-				KandangID uint
-				Date      time.Time
+			if _, ok := emptyDaysByKandang[rec.KandangID]; !ok {
+				emptyDaysByKandang[rec.KandangID] = make(map[int]struct{})
 			}
-			var nextDates []checklistDateRec
-			if err := s.Repository.DB().WithContext(c.Context()).
-				Model(&entity.DailyChecklist{}).
-				Where("kandang_id IN ? AND category != ? AND date > ? AND (status IS NULL OR status != ?) AND deleted_at IS NULL",
-					kandangIDs, dailyChecklistCategoryEmptyKandang, minEmptyDate, dailyChecklistStatusRejected).
-				Select("kandang_id, date").
-				Order("kandang_id ASC, date ASC").
-				Scan(&nextDates).Error; err != nil {
-				s.Log.Errorf("Failed to get next checklist dates for empty kandang: %+v", err)
-				return err
-			}
-
-			nextDatesByKandang := make(map[uint][]time.Time)
-			for _, row := range nextDates {
-				nextDatesByKandang[row.KandangID] = append(nextDatesByKandang[row.KandangID], row.Date)
-			}
-
-			for _, rec := range emptyRecs {
-				var nextDate time.Time
-				for _, d := range nextDatesByKandang[rec.KandangID] {
-					if d.After(rec.Date) {
-						nextDate = d
-						break
-					}
-				}
-
-				// If no next checklist, cap empty period at today (not end of month)
-				ceiling := lastDay
-				if today.Before(lastDay) {
-					ceiling = today
-				}
-				periodEnd := ceiling
-				if !nextDate.IsZero() {
-					periodEnd = nextDate.AddDate(0, 0, -1)
-				}
-
-				effectiveStart := rec.Date
-				if effectiveStart.Before(firstDay) {
-					effectiveStart = firstDay
-				}
-				effectiveEnd := periodEnd
-				if effectiveEnd.After(lastDay) {
-					effectiveEnd = lastDay
-				}
-
-				if effectiveStart.After(effectiveEnd) {
-					continue
-				}
-
-				if _, ok := emptyDaysByKandang[rec.KandangID]; !ok {
-					emptyDaysByKandang[rec.KandangID] = make(map[int]struct{})
-				}
-				for d := effectiveStart; !d.After(effectiveEnd); d = d.AddDate(0, 0, 1) {
-					emptyDaysByKandang[rec.KandangID][d.Day()] = struct{}{}
-				}
+			for d := effectiveStart; !d.After(effectiveEnd); d = d.AddDate(0, 0, 1) {
+				emptyDaysByKandang[rec.KandangID][d.Day()] = struct{}{}
 			}
 		}
 

internal/modules/daily-checklists/services/daily-checklist.service_test.go

@@ -208,8 +208,18 @@ func TestCreateOneAllowsBulkEmptyKandangWhenRangeHasOnlySoftDeletedChecklist(t *
 		Count(&activeInRange).Error; err != nil {
 		t.Fatalf("failed counting checklists in range: %v", err)
 	}
-	if activeInRange != 5 {
-		t.Fatalf("expected 5 active checklists created for range, got %d", activeInRange)
+	if activeInRange != 1 {
+		t.Fatalf("expected 1 active empty_kandang checklist created for range, got %d", activeInRange)
+	}
+
+	var emptyRangeCount int64
+	if err := db.Model(&entity.DailyChecklistEmptyKandang{}).
+		Where("kandang_id = ? AND start_date = ? AND end_date = ? AND deleted_at IS NULL", 1, mustDate(t, "2026-01-01"), mustDate(t, "2026-01-05")).
+		Count(&emptyRangeCount).Error; err != nil {
+		t.Fatalf("failed counting empty kandang ranges: %v", err)
+	}
+	if emptyRangeCount != 1 {
+		t.Fatalf("expected 1 empty kandang range record for [2026-01-01, 2026-01-05], got %d", emptyRangeCount)
 	}
 }
 
@@ -304,6 +314,18 @@ func setupDailyChecklistServiceTest(t *testing.T) (DailyChecklistService, *gorm.
 			updated_at DATETIME NULL,
 			deleted_at DATETIME NULL
 		)`,
+		`CREATE TABLE daily_checklist_empty_kandangs (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			daily_checklist_id INTEGER NOT NULL,
+			kandang_id INTEGER NOT NULL,
+			start_date DATE NOT NULL,
+			end_date DATE NOT NULL,
+			created_by INTEGER NULL,
+			deleted_by INTEGER NULL,
+			created_at DATETIME NULL,
+			updated_at DATETIME NULL,
+			deleted_at DATETIME NULL
+		)`,
 		`INSERT INTO areas (id, name, created_by, created_at, updated_at, deleted_at) VALUES (1, 'Area A', 1, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP, NULL)`,
 		`INSERT INTO locations (id, name, address, area_id, created_by, created_at, updated_at, deleted_at) VALUES (1, 'Farm A', 'Address', 1, 1, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP, NULL)`,
 		`INSERT INTO kandang_groups (id, name, status, location_id, pic_id, created_by, created_at, updated_at, deleted_at) VALUES (1, 'Kandang A', 'ACTIVE', 1, 1, 1, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP, NULL)`,
@@ -316,7 +338,8 @@ func setupDailyChecklistServiceTest(t *testing.T) (DailyChecklistService, *gorm.
 	}
 
 	repo := repository.NewDailyChecklistRepository(db)
-	svc := NewDailyChecklistService(repo, nil, validator.New(), nil)
+	emptyRepo := repository.NewDailyChecklistEmptyKandangRepository(db)
+	svc := NewDailyChecklistService(repo, emptyRepo, nil, validator.New(), nil)
 	return svc, db
 }
 

internal/modules/daily-checklists/validations/daily-checklist.validation.go

@@ -9,7 +9,8 @@ type Create struct {
 	KandangId           uint   `json:"kandang_id" validate:"required"`
 	Category            string `json:"category" validate:"required"`
 	Status              string `json:"status" validate:"required"`
-	EmptyKandang bool `json:"empty_kandang"`
+	EmptyKandang        bool   `json:"empty_kandang"`
+	EmptyKandangEndDate string `json:"empty_kandang_end_date" validate:"omitempty"`
 }
 
 type Update struct {