feat/BE/US-76/TASK-122,133,121,120 Recording add create delete edit

internal/database/migrations/20251024092758_deleted-project_flock_id_in_kandangs.up.sql

@@ -0,0 +1,22 @@
+
+ALTER TABLE kandangs
+    DROP CONSTRAINT IF EXISTS kandangs_project_flock_id_fkey;
+
+ALTER TABLE kandangs
+    DROP COLUMN IF EXISTS project_flock_id;
+
+ALTER TABLE project_chickins
+  DROP CONSTRAINT fk_project_flock_kandang_id,
+  ADD  CONSTRAINT fk_project_flock_kandang_id
+       FOREIGN KEY (project_flock_kandang_id)
+       REFERENCES project_flock_kandangs(id)
+       ON UPDATE CASCADE
+       ON DELETE CASCADE;
+
+ALTER TABLE project_flock_populations
+  DROP CONSTRAINT fk_project_flock_kandang_id,
+  ADD  CONSTRAINT fk_project_flock_kandang_id
+       FOREIGN KEY (project_flock_kandang_id)
+       REFERENCES project_flock_kandangs(id)
+       ON UPDATE CASCADE
+       ON DELETE CASCADE;

internal/database/seed/seeder.go

@@ -51,12 +51,12 @@ func Run(db *gorm.DB) error {
 			return err
 		}
 
-		projectFlocks, err := seedProjectFlocks(tx, adminID, flocks, areas, fcrs, locations)
-		if err != nil {
+		
+		if err := seedProjectFlocks(tx, adminID, flocks, areas, fcrs, locations); err != nil {
 			return err
 		}
-
-		kandangs, err := seedKandangs(tx, adminID, locations, users, projectFlocks)
+		
+		kandangs, err := seedKandangs(tx, adminID, locations, users)
 		if err != nil {
 			return err
 		}
@@ -243,7 +243,11 @@ func seedFlocks(tx *gorm.DB, createdBy uint) (map[string]uint, error) {
 	return result, nil
 }
 
-func seedProjectFlocks(tx *gorm.DB, createdBy uint, flocks, areas, fcrs, locations map[string]uint) (map[string]uint, error) {
+func seedProjectFlocks(
+	tx *gorm.DB,
+	createdBy uint,
+	flocks, areas, fcrs, locations map[string]uint,
+) error {
 	seeds := []struct {
 		Key      string
 		Flock    string
@@ -273,29 +277,30 @@ func seedProjectFlocks(tx *gorm.DB, createdBy uint, flocks, areas, fcrs, locatio
 		},
 	}
 
-	result := make(map[string]uint, len(seeds))
-
 	for _, seed := range seeds {
 		flockID, ok := flocks[seed.Flock]
 		if !ok {
-			return nil, fmt.Errorf("floc %s not seeded", seed.Flock)
+			return fmt.Errorf("floc %s not seeded", seed.Flock)
 		}
 		areaID, ok := areas[seed.Area]
 		if !ok {
-			return nil, fmt.Errorf("area %s not seeded", seed.Area)
+			return fmt.Errorf("area %s not seeded", seed.Area)
 		}
 		fcrID, ok := fcrs[seed.Fcr]
 		if !ok {
-			return nil, fmt.Errorf("fcr %s not seeded", seed.Fcr)
+			return fmt.Errorf("fcr %s not seeded", seed.Fcr)
 		}
 		locationID, ok := locations[seed.Location]
 		if !ok {
-			return nil, fmt.Errorf("location %s not seeded", seed.Location)
+			return fmt.Errorf("location %s not seeded", seed.Location)
 		}
 
 		var projectFlock entity.ProjectFlock
-		err := tx.Where("flock_id = ? AND area_id = ? AND category = ? AND fcr_id = ? AND location_id = ? AND period = ?",
-			flockID, areaID, seed.Category, fcrID, locationID, seed.Period).First(&projectFlock).Error
+		err := tx.Where(
+			"flock_id = ? AND area_id = ? AND category = ? AND fcr_id = ? AND location_id = ? AND period = ?",
+			flockID, areaID, seed.Category, fcrID, locationID, seed.Period,
+		).First(&projectFlock).Error
+
 		if errors.Is(err, gorm.ErrRecordNotFound) {
 			projectFlock = entity.ProjectFlock{
 				FlockId:    flockID,
@@ -307,10 +312,10 @@ func seedProjectFlocks(tx *gorm.DB, createdBy uint, flocks, areas, fcrs, locatio
 				CreatedBy:  createdBy,
 			}
 			if err := tx.Create(&projectFlock).Error; err != nil {
-				return nil, err
+				return err
 			}
 		} else if err != nil {
-			return nil, err
+			return err
 		} else {
 			if err := tx.Model(&entity.ProjectFlock{}).Where("id = ?", projectFlock.Id).Updates(map[string]any{
 				"flock_id":    flockID,
@@ -320,17 +325,16 @@ func seedProjectFlocks(tx *gorm.DB, createdBy uint, flocks, areas, fcrs, locatio
 				"location_id": locationID,
 				"period":      seed.Period,
 			}).Error; err != nil {
-				return nil, err
+				return err
 			}
 		}
 
 		if err := ensureProjectFlockApprovals(tx, projectFlock.Id, createdBy); err != nil {
-			return nil, err
+			return err
 		}
-		result[seed.Key] = projectFlock.Id
 	}
 
-	return result, nil
+	return nil
 }
 
 func ensureProjectFlockApprovals(tx *gorm.DB, projectFlockID uint, actorID uint) error {
@@ -385,17 +389,16 @@ func ensureProjectFlockApprovals(tx *gorm.DB, projectFlockID uint, actorID uint)
 	return nil
 }
 
-func seedKandangs(tx *gorm.DB, createdBy uint, locations map[string]uint, users map[string]uint, projectFlocks map[string]uint) (map[string]uint, error) {
+func seedKandangs(tx *gorm.DB, createdBy uint, locations map[string]uint, users map[string]uint) (map[string]uint, error) {
 	seeds := []struct {
 		Name            string
 		Status          utils.KandangStatus
 		Location        string
 		PicKey          string
-		ProjectFlockKey *string
 	}{
-		{Name: "Singaparna 1", Status: utils.KandangStatusActive, Location: "Singaparna", PicKey: "admin", ProjectFlockKey: strPtr("Singaparna Period 1")},
+		{Name: "Singaparna 1", Status: utils.KandangStatusNonActive, Location: "Singaparna", PicKey: "admin"},
 		{Name: "Singaparna 2", Status: utils.KandangStatusNonActive, Location: "Singaparna", PicKey: "admin"},
-		{Name: "Cikaum 1", Status: utils.KandangStatusActive, Location: "Cikaum", PicKey: "admin", ProjectFlockKey: strPtr("Cikaum Period 1")},
+		{Name: "Cikaum 1", Status: utils.KandangStatusNonActive, Location: "Cikaum", PicKey: "admin"},
 		{Name: "Cikaum 2", Status: utils.KandangStatusNonActive, Location: "Cikaum", PicKey: "admin"},
 	}
 
@@ -411,14 +414,6 @@ func seedKandangs(tx *gorm.DB, createdBy uint, locations map[string]uint, users
 			return nil, fmt.Errorf("user %s not seeded", seed.PicKey)
 		}
 
-		var projectFlockID *uint
-		if seed.ProjectFlockKey != nil {
-			pfID, ok := projectFlocks[*seed.ProjectFlockKey]
-			if !ok {
-				return nil, fmt.Errorf("project flock %s not seeded", *seed.ProjectFlockKey)
-			}
-			projectFlockID = uintPtr(pfID)
-		}
 
 		var kandang entity.Kandang
 		err := tx.Where("name = ?", seed.Name).First(&kandang).Error
@@ -428,15 +423,11 @@ func seedKandangs(tx *gorm.DB, createdBy uint, locations map[string]uint, users
 				Status:         string(seed.Status),
 				LocationId:     locID,
 				PicId:          picID,
-				ProjectFlockId: projectFlockID,
 				CreatedBy:      createdBy,
 			}
 			if err := tx.Create(&kandang).Error; err != nil {
 				return nil, err
 			}
-			if err := syncPivotRelation(tx, projectFlockID, kandang.Id); err != nil {
-				return nil, err
-			}
 		} else if err != nil {
 			return nil, err
 		} else {
@@ -445,17 +436,9 @@ func seedKandangs(tx *gorm.DB, createdBy uint, locations map[string]uint, users
 				"pic_id":      picID,
 				"status":      string(seed.Status),
 			}
-			if projectFlockID != nil {
-				updates["project_flock_id"] = *projectFlockID
-			} else {
-				updates["project_flock_id"] = nil
-			}
 			if err := tx.Model(&entity.Kandang{}).Where("id = ?", kandang.Id).Updates(updates).Error; err != nil {
 				return nil, err
 			}
-			if err := syncPivotRelation(tx, projectFlockID, kandang.Id); err != nil {
-				return nil, err
-			}
 		}
 		result[seed.Name] = kandang.Id
 	}
@@ -463,37 +446,6 @@ func seedKandangs(tx *gorm.DB, createdBy uint, locations map[string]uint, users
 	return result, nil
 }
 
-func syncPivotRelation(tx *gorm.DB, projectFlockID *uint, kandangID uint) error {
-	if err := detachActivePivot(tx, kandangID); err != nil {
-		return err
-	}
-	if projectFlockID == nil {
-		return nil
-	}
-	return ensureActivePivot(tx, *projectFlockID, kandangID)
-}
-
-func detachActivePivot(tx *gorm.DB, kandangID uint) error {
-	return tx.Where("kandang_id = ?", kandangID).
-		Delete(&entity.ProjectFlockKandang{}).Error
-}
-
-func ensureActivePivot(tx *gorm.DB, projectFlockID, kandangID uint) error {
-	var pivot entity.ProjectFlockKandang
-	err := tx.Where("project_flock_id = ? AND kandang_id = ?", projectFlockID, kandangID).
-		First(&pivot).Error
-	if err == nil {
-		return nil
-	}
-	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
-		return err
-	}
-	newRecord := entity.ProjectFlockKandang{
-		ProjectFlockId: projectFlockID,
-		KandangId:      kandangID,
-	}
-	return tx.Create(&newRecord).Error
-}
 
 func seedWarehouses(tx *gorm.DB, createdBy uint, areas map[string]uint, locations map[string]uint, kandangs map[string]uint) error {
 	seeds := []struct {
@@ -1133,153 +1085,71 @@ func seedTransferStock(tx *gorm.DB, createdBy uint) error {
 
 	return nil
 }
-
 func seedChickin(tx *gorm.DB, createdBy uint) error {
-	seeds := []struct {
-		ProjectFlockKandangId uint
-		ChickInDate           string
-		Quantity              float64
-		Note                  string
-	}{
-		{ProjectFlockKandangId: 1, ChickInDate: "2025-10-20", Quantity: 100, Note: "Seeder chickin 1"},
-		{ProjectFlockKandangId: 2, ChickInDate: "2025-10-21", Quantity: 200, Note: "Seeder chickin 2"},
-	}
+    // gunakan identitas yang stabil, bukan ID pivot
+    seeds := []struct {
+        KandangName  string
+        LocationName string
+        Period       int
+        ChickInDate  string
+        Quantity     float64
+        Note         string
+    }{
+        {"Singaparna 1", "Singaparna", 1, "2025-10-20", 100, "Seeder chickin 1"},
+        {"Cikaum 1",     "Cikaum",     1, "2025-10-21", 200, "Seeder chickin 2"},
+    }
 
-	for _, seed := range seeds {
-		chickinDate, err := time.Parse("2006-01-02", seed.ChickInDate)
-		if err != nil {
-			return err
-		}
+    for _, s := range seeds {
+        pfkID, err := ensurePFK(tx, s.KandangName, s.LocationName, s.Period)
+        if err != nil { return err }
 
-		// Insert ProjectChickin jika belum ada
-		var chickin entity.ProjectChickin
-		err = tx.Where("project_flock_kandang_id = ? AND chick_in_date = ?", seed.ProjectFlockKandangId, chickinDate).
-			First(&chickin).Error
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			chickin = entity.ProjectChickin{
-				ProjectFlockKandangId: seed.ProjectFlockKandangId,
-				ChickInDate:           chickinDate,
-				Quantity:              seed.Quantity,
-				Note:                  seed.Note,
-				CreatedBy:             createdBy,
-			}
-			if err := tx.Create(&chickin).Error; err != nil {
-				return err
-			}
-		} else if err != nil {
-			return err
-		}
+        date, err := time.Parse("2006-01-02", s.ChickInDate)
+        if err != nil { return err }
 
-		var population entity.ProjectFlockPopulation
-		err = tx.Where("project_flock_kandang_id = ?", seed.ProjectFlockKandangId).First(&population).Error
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			population = entity.ProjectFlockPopulation{
-				ProjectFlockKandangId: seed.ProjectFlockKandangId,
-				InitialQuantity:       seed.Quantity,
-				CurrentQuantity:       seed.Quantity,
-				ReservedQuantity:      0,
-				CreatedBy:             createdBy,
-			}
-			if err := tx.Create(&population).Error; err != nil {
-				return err
-			}
-		} else if err != nil {
-			return err
-		} else {
-			// Update population quantities
-			if err := tx.Model(&entity.ProjectFlockPopulation{}).
-				Where("id = ?", population.Id).
-				Updates(map[string]any{
-					"initial_quantity":  population.InitialQuantity + seed.Quantity,
-					"current_quantity":  population.CurrentQuantity + seed.Quantity,
-					"reserved_quantity": 0,
-				}).Error; err != nil {
-				return err
-			}
-		}
+        // upsert project_chickin (idempotent)
+        var chickin entity.ProjectChickin
+        err = tx.Where("project_flock_kandang_id = ? AND chick_in_date = ?", pfkID, date).First(&chickin).Error
+        if errors.Is(err, gorm.ErrRecordNotFound) {
+            chickin = entity.ProjectChickin{
+                ProjectFlockKandangId: pfkID,
+                ChickInDate:           date,
+                Quantity:              s.Quantity,
+                Note:                  s.Note,
+                CreatedBy:             createdBy,
+            }
+            if err := tx.Create(&chickin).Error; err != nil { return err }
+        } else if err != nil {
+            return err
+        }
 
-		var pfk entity.ProjectFlockKandang
-		if err := tx.Where("id = ?", seed.ProjectFlockKandangId).First(&pfk).Error; err != nil {
-			if errors.Is(err, gorm.ErrRecordNotFound) {
-				// no pivot found; skip creating details
-				continue
-			}
-			return err
-		}
-
-		var warehouse entity.Warehouse
-		if err := tx.Where("kandang_id = ?", pfk.KandangId).First(&warehouse).Error; err != nil {
-			// if warehouse not found, cannot create details
-			if errors.Is(err, gorm.ErrRecordNotFound) {
-				continue
-			}
-			return err
-		}
-
-		var productWarehouses []entity.ProductWarehouse
-		err = tx.Table("product_warehouses").
-			Select("product_warehouses.*").
-			Joins("JOIN products ON products.id = product_warehouses.product_id").
-			Joins("JOIN product_categories ON product_categories.id = products.product_category_id").
-			Where("product_categories.code = ? AND product_warehouses.warehouse_id = ?", "DOC", warehouse.Id).
-			Order("product_warehouses.created_at DESC").
-			Find(&productWarehouses).Error
-		if err != nil {
-			return err
-		}
-
-		// If no product warehouses found, keep existing chickin.Quantity and skip details
-		if len(productWarehouses) == 0 {
-			continue
-		}
-
-		// sum all pw quantities and set chickin.Quantity to that total (mimic CreateOne)
-		totalQty := 0.0
-		for _, pw := range productWarehouses {
-			totalQty += pw.Quantity
-		}
-
-		if chickin.Quantity != totalQty {
-			if err := tx.Model(&entity.ProjectChickin{}).Where("id = ?", chickin.Id).Update("quantity", totalQty).Error; err != nil {
-				return err
-			}
-			chickin.Quantity = totalQty
-		}
-
-		for _, pw := range productWarehouses {
-			// ensure detail exists or create it with full pw.Quantity
-			var detail entity.ProjectChickinDetail
-			err = tx.Where("project_chickin_id = ? AND product_warehouse_id = ?", chickin.Id, pw.Id).First(&detail).Error
-			if errors.Is(err, gorm.ErrRecordNotFound) {
-				detail = entity.ProjectChickinDetail{
-					ProjectChickinId:   chickin.Id,
-					ProductWarehouseId: pw.Id,
-					Quantity:           pw.Quantity,
-					CreatedBy:          createdBy,
-				}
-				if err := tx.Create(&detail).Error; err != nil {
-					return err
-				}
-			} else if err != nil {
-				return err
-			} else {
-				if detail.Quantity != pw.Quantity {
-					if err := tx.Model(&entity.ProjectChickinDetail{}).Where("id = ?", detail.Id).Update("quantity", pw.Quantity).Error; err != nil {
-						return err
-					}
-				}
-			}
-
-			// zero out pw quantity
-			if err := tx.Model(&entity.ProductWarehouse{}).Where("id = ?", pw.Id).Update("quantity", 0).Error; err != nil {
-				return err
-			}
-		}
-	}
-
-	return nil
+        // upsert population
+        var pop entity.ProjectFlockPopulation
+        err = tx.Where("project_flock_kandang_id = ?", pfkID).First(&pop).Error
+        if errors.Is(err, gorm.ErrRecordNotFound) {
+            pop = entity.ProjectFlockPopulation{
+                ProjectFlockKandangId: pfkID,
+                InitialQuantity:       s.Quantity,
+                CurrentQuantity:       s.Quantity,
+                ReservedQuantity:      0,
+                CreatedBy:             createdBy,
+            }
+            if err := tx.Create(&pop).Error; err != nil { return err }
+        } else if err != nil {
+            return err
+        } else {
+            if err := tx.Model(&entity.ProjectFlockPopulation{}).
+                Where("id = ?", pop.Id).
+                Updates(map[string]any{
+                    "initial_quantity":  pop.InitialQuantity + s.Quantity,
+                    "current_quantity":  pop.CurrentQuantity + s.Quantity,
+                    "reserved_quantity": 0,
+                }).Error; err != nil { return err }
+        }
+    }
+    return nil
 }
 
+
 func ptr[T any](v T) *T {
 	return &v
 }
@@ -1295,3 +1165,30 @@ func intPtr(v int) *int {
 func uintPtr(v uint) *uint {
 	return &v
 }
+
+func ensurePFK(tx *gorm.DB, kandangName, locationName string, period int) (uint, error) {
+    var kandang entity.Kandang
+    if err := tx.Where("name = ?", kandangName).First(&kandang).Error; err != nil {
+        return 0, fmt.Errorf("kandang %q not found: %w", kandangName, err)
+    }
+    var loc entity.Location
+    if err := tx.Where("name = ?", locationName).First(&loc).Error; err != nil {
+        return 0, fmt.Errorf("location %q not found: %w", locationName, err)
+    }
+    var pf entity.ProjectFlock
+    if err := tx.Where("location_id = ? AND period = ?", loc.Id, period).First(&pf).Error; err != nil {
+        return 0, fmt.Errorf("project_flock for %s period %d not found: %w", locationName, period, err)
+    }
+    var pfk entity.ProjectFlockKandang
+    if err := tx.Where("project_flock_id = ? AND kandang_id = ?", pf.Id, kandang.Id).First(&pfk).Error; err != nil {
+        if errors.Is(err, gorm.ErrRecordNotFound) {
+            pfk = entity.ProjectFlockKandang{ ProjectFlockId: pf.Id, KandangId: kandang.Id }
+            if err := tx.Create(&pfk).Error; err != nil {
+                return 0, fmt.Errorf("create pivot pfk(%d,%d) failed: %w", pf.Id, kandang.Id, err)
+            }
+        } else {
+            return 0, err
+        }
+    }
+    return pfk.Id, nil
+}

internal/entities/kandang.go

@@ -7,18 +7,17 @@ import (
 )
 
 type Kandang struct {
-	Id             uint           `gorm:"primaryKey"`
-	Name           string         `gorm:"not null;uniqueIndex:kandangs_name_unique,where:deleted_at IS NULL"`
-	Status         string         `gorm:"type:varchar(50);not null"`
-	LocationId     uint           `gorm:"not null"`
-	PicId          uint           `gorm:"not null"`
-	ProjectFlockId *uint          `gorm:"column:project_flock_id"`
-	CreatedBy      uint           `gorm:"not null"`
-	CreatedAt      time.Time      `gorm:"autoCreateTime"`
-	UpdatedAt      time.Time      `gorm:"autoUpdateTime"`
-	DeletedAt      gorm.DeletedAt `gorm:"index" json:"-"`
-	CreatedUser    User           `gorm:"foreignKey:CreatedBy;references:Id"`
-	Location       Location       `gorm:"foreignKey:LocationId;references:Id"`
-	Pic            User           `gorm:"foreignKey:PicId;references:Id"`
-	ProjectFlock   *ProjectFlock  `gorm:"foreignKey:ProjectFlockId;references:Id"`
+	Id          uint           `gorm:"primaryKey"`
+	Name        string         `gorm:"not null;uniqueIndex:kandangs_name_unique,where:deleted_at IS NULL"`
+	Status      string         `gorm:"type:varchar(50);not null"`
+	LocationId  uint           `gorm:"not null"`
+	PicId       uint           `gorm:"not null"`
+	CreatedBy   uint           `gorm:"not null"`
+	CreatedAt   time.Time      `gorm:"autoCreateTime"`
+	UpdatedAt   time.Time      `gorm:"autoUpdateTime"`
+	DeletedAt   gorm.DeletedAt `gorm:"index" json:"-"`
+	CreatedUser User           `gorm:"foreignKey:CreatedBy;references:Id"`
+	Location    Location       `gorm:"foreignKey:LocationId;references:Id"`
+	Pic         User           `gorm:"foreignKey:PicId;references:Id"`
+	ProjectFlockKandangs []ProjectFlockKandang `gorm:"foreignKey:KandangId;references:Id" json:"-"`
 }

internal/entities/project_chickin.go

@@ -10,7 +10,7 @@ const ()
 
 type ProjectChickin struct {
 	Id                    uint           `gorm:"primaryKey"`
-	ProjectFlockKandangId uint           `gorm:"not null"`
+	ProjectFlockKandangId uint           `gorm:"not null;index;constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
 	ChickInDate           time.Time      `gorm:"not null"`
 	Quantity              float64        `gorm:"not null"`
 	Note                  string         `gorm:"type:text"`

internal/entities/project_flock_population.go

@@ -8,7 +8,7 @@ import (
 
 type ProjectFlockPopulation struct {
 	Id                    uint           `gorm:"primaryKey"`
-	ProjectFlockKandangId uint           `gorm:"not null"`
+	ProjectFlockKandangId uint `gorm:"not null;index;constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
 	InitialQuantity       float64        `gorm:"type:numeric(15,3);not null"`
 	CurrentQuantity       float64        `gorm:"type:numeric(15,3);not null"`
 	ReservedQuantity      float64        `gorm:"type:numeric(15,3)"`
@@ -18,5 +18,6 @@ type ProjectFlockPopulation struct {
 	DeletedAt             gorm.DeletedAt `gorm:"index"`
 
 	ProjectFlockKandang *ProjectFlockKandang `gorm:"foreignKey:ProjectFlockKandangId;references:Id"`
+	
 	CreatedUser         *User                `gorm:"foreignKey:CreatedBy;references:Id"`
 }

internal/entities/projectflock.go

@@ -24,7 +24,8 @@ type ProjectFlock struct {
 	Fcr            Fcr                   `gorm:"foreignKey:FcrId;references:Id"`
 	Location       Location              `gorm:"foreignKey:LocationId;references:Id"`
 	CreatedUser    User                  `gorm:"foreignKey:CreatedBy;references:Id"`
-	Kandangs       []Kandang             `gorm:"foreignKey:ProjectFlockId;references:Id"`
-	KandangHistory []ProjectFlockKandang `gorm:"foreignKey:ProjectFlockId;references:Id"`
-	LatestApproval *Approval             `gorm:"-" json:"-"`
+	Kandangs       []Kandang             `gorm:"many2many:project_flock_kandangs;joinTableForeignKey:project_flock_id;joinTableReferences:kandang_id" json:"kandangs,omitempty"`
+	KandangHistory []ProjectFlockKandang `gorm:"foreignKey:ProjectFlockId;references:Id" json:"-"`
+
+	LatestApproval *Approval `gorm:"-" json:"-"`
 }

internal/entities/projectflock_kandang.go

@@ -7,6 +7,9 @@ type ProjectFlockKandang struct {
 	ProjectFlockId uint         `gorm:"not null;index:idx_project_flock_kandangs_project;uniqueIndex:idx_project_flock_kandangs_unique"`
 	KandangId      uint         `gorm:"not null;index:idx_project_flock_kandangs_kandang;uniqueIndex:idx_project_flock_kandangs_unique"`
 	CreatedAt      time.Time    `gorm:"autoCreateTime"`
-	ProjectFlock   ProjectFlock `gorm:"foreignKey:ProjectFlockId;references:Id"`
-	Kandang        Kandang      `gorm:"foreignKey:KandangId;references:Id"`
+	
+
+	ProjectFlock ProjectFlock `gorm:"foreignKey:ProjectFlockId;references:Id"`
+	Kandang      Kandang      `gorm:"foreignKey:KandangId;references:Id"`
+
 }

internal/modules/master/kandangs/repositories/kandang.repository.go

@@ -2,6 +2,7 @@ package repository
 
 import (
 	"context"
+	"errors"
 
 	"gitlab.com/mbugroup/lti-api.git/internal/common/repository"
 	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
@@ -18,6 +19,8 @@ type KandangRepository interface {
 	GetFirstByProjectFlockID(ctx context.Context, projectFlockID uint) (*entity.Kandang, error)
 	HasActiveKandangForProjectFlock(ctx context.Context, projectFlockID uint, excludeID *uint) (bool, error)
 	UpdateStatusByProjectFlockID(ctx context.Context, projectFlockID uint, status utils.KandangStatus) error
+	UpsertProjectFlockKandang(ctx context.Context, projectFlockID, kandangID uint) error
+
 }
 
 type KandangRepositoryImpl struct {
@@ -58,14 +61,15 @@ func (r *KandangRepositoryImpl) ProjectFlockExists(ctx context.Context, projectF
 
 func (r *KandangRepositoryImpl) HasActiveKandangForProjectFlock(ctx context.Context, projectFlockID uint, excludeID *uint) (bool, error) {
 	var count int64
-	q := r.db.WithContext(ctx).
-		Model(&entity.Kandang{}).
-		Where("project_flock_id = ?", projectFlockID).
-		Where("status = ?", utils.KandangStatusActive).
-		Where("deleted_at IS NULL")
-	if excludeID != nil {
-		q = q.Where("id <> ?", *excludeID)
-	}
+	 q := r.db.WithContext(ctx).
+        Table("kandangs k").
+        Joins("JOIN project_flock_kandangs pfk ON pfk.kandang_id = k.id").
+        Where("pfk.project_flock_id = ?", projectFlockID).
+        Where("k.status = ?", utils.KandangStatusActive).
+        Where("k.deleted_at IS NULL")
+    if excludeID != nil {
+        q = q.Where("k.id <> ?", *excludeID)
+    }
 	if err := q.Count(&count).Error; err != nil {
 		return false, err
 	}
@@ -74,18 +78,49 @@ func (r *KandangRepositoryImpl) HasActiveKandangForProjectFlock(ctx context.Cont
 
 func (r *KandangRepositoryImpl) GetFirstByProjectFlockID(ctx context.Context, projectFlockID uint) (*entity.Kandang, error) {
 	kandang := new(entity.Kandang)
-	err := r.db.WithContext(ctx).
-		Where("project_flock_id = ?", projectFlockID).
-		First(kandang).Error
-	if err != nil {
-		return nil, err
-	}
+    err := r.db.WithContext(ctx).
+        Table("kandangs k").
+        Joins("JOIN project_flock_kandangs pfk ON pfk.kandang_id = k.id").
+        Where("pfk.project_flock_id = ?", projectFlockID).
+        Where("k.deleted_at IS NULL").
+        Order("k.id ASC").
+        Limit(1).
+        Find(kandang).Error
+    if err != nil {
+        return nil, err
+    }
+    if kandang.Id == 0 {
+        return nil, gorm.ErrRecordNotFound
+    }
+
 	return kandang, nil
 }
 
 func (r *KandangRepositoryImpl) UpdateStatusByProjectFlockID(ctx context.Context, projectFlockID uint, status utils.KandangStatus) error {
-	return r.db.WithContext(ctx).
-		Model(&entity.Kandang{}).
-		Where("project_flock_id = ?", projectFlockID).
-		Update("status", string(status)).Error
+	  sub := r.db.WithContext(ctx).
+        Table("project_flock_kandangs").
+        Select("kandang_id").
+        Where("project_flock_id = ?", projectFlockID)
+
+    return r.db.WithContext(ctx).
+        Model(&entity.Kandang{}).
+        Where("id IN (?)", sub).
+        Where("deleted_at IS NULL").
+        Update("status", string(status)).Error
 }
+
+func (r *KandangRepositoryImpl) UpsertProjectFlockKandang(ctx context.Context, projectFlockID, kandangID uint) error {
+    var link entity.ProjectFlockKandang
+    err := r.db.WithContext(ctx).
+        Where("project_flock_id = ? AND kandang_id = ?", projectFlockID, kandangID).
+        First(&link).Error
+    if errors.Is(err, gorm.ErrRecordNotFound) {
+        link = entity.ProjectFlockKandang{
+            ProjectFlockId: projectFlockID,
+            KandangId:      kandangID,
+        }
+        return r.db.WithContext(ctx).Create(&link).Error
+    }
+    return err
+}
+

internal/modules/master/kandangs/services/kandang.service.go

@@ -40,7 +40,8 @@ func NewKandangService(repo repository.KandangRepository, validate *validator.Va
 }
 
 func (s kandangService) withRelations(db *gorm.DB) *gorm.DB {
-	return db.Preload("CreatedUser").Preload("Location").Preload("Pic")
+	return db.Preload("CreatedUser").Preload("Location").Preload("Pic").Preload("ProjectFlockKandangs.ProjectFlock")
+	
 }
 
 func (s kandangService) GetAll(c *fiber.Ctx, params *validation.Query) ([]entity.Kandang, int64, error) {
@@ -110,7 +111,6 @@ func (s *kandangService) CreateOne(c *fiber.Ctx, req *validation.Create) (*entit
 		return nil, fiber.NewError(fiber.StatusBadRequest, "Invalid kandang status")
 	}
 
-	var projectFlockID *uint
 	if req.ProjectFlockId != nil {
 		if exists, err := s.Repository.ProjectFlockExists(c.Context(), *req.ProjectFlockId); err != nil {
 			s.Log.Errorf("Failed to check project flock existence: %+v", err)
@@ -128,8 +128,6 @@ func (s *kandangService) CreateOne(c *fiber.Ctx, req *validation.Create) (*entit
 			}
 		}
 
-		idCopy := *req.ProjectFlockId
-		projectFlockID = &idCopy
 	}
 
 	//TODO: created by dummy
@@ -138,7 +136,6 @@ func (s *kandangService) CreateOne(c *fiber.Ctx, req *validation.Create) (*entit
 		LocationId:     req.LocationId,
 		Status:         status,
 		PicId:          req.PicId,
-		ProjectFlockId: projectFlockID,
 		CreatedBy:      1,
 	}
 
@@ -147,6 +144,12 @@ func (s *kandangService) CreateOne(c *fiber.Ctx, req *validation.Create) (*entit
 		return nil, err
 	}
 
+	if req.ProjectFlockId != nil {
+		if err := s.Repository.UpsertProjectFlockKandang(c.Context(), *req.ProjectFlockId, createBody.Id); err != nil {
+			s.Log.Errorf("Failed to link kandang to project_flock via pivot: %+v", err)
+			return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to link kandang to project flock")
+		}
+	}
 	return s.GetOne(c, createBody.Id)
 }
 
@@ -201,7 +204,6 @@ func (s kandangService) UpdateOne(c *fiber.Ctx, req *validation.Update, id uint)
 		finalStatus = status
 	}
 
-	projectFlockIDToUse := existing.ProjectFlockId
 	if req.ProjectFlockId != nil {
 		if exists, err := s.Repository.ProjectFlockExists(c.Context(), *req.ProjectFlockId); err != nil {
 			s.Log.Errorf("Failed to check project flock existence: %+v", err)
@@ -209,30 +211,33 @@ func (s kandangService) UpdateOne(c *fiber.Ctx, req *validation.Update, id uint)
 		} else if !exists {
 			return nil, fiber.NewError(fiber.StatusNotFound, fmt.Sprintf("Project flock with id %d not found", *req.ProjectFlockId))
 		}
-		idCopy := *req.ProjectFlockId
-		projectFlockIDToUse = &idCopy
-		updateBody["project_flock_id"] = idCopy
-	}
 
-	if projectFlockIDToUse != nil && finalStatus == string(utils.KandangStatusActive) {
-		if active, err := s.Repository.HasActiveKandangForProjectFlock(c.Context(), *projectFlockIDToUse, &id); err != nil {
-			s.Log.Errorf("Failed to check kandang activity for project flock %d: %+v", *projectFlockIDToUse, err)
-			return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to check active kandang for project flock")
-		} else if active {
-			return nil, fiber.NewError(fiber.StatusConflict, "Project flock already has an active kandang")
+		// Kalau status jadi ACTIVE, pastikan tidak ada kandang aktif lain pada project flock tsb (hitung via pivot)
+		if finalStatus == string(utils.KandangStatusActive) {
+			if active, err := s.Repository.HasActiveKandangForProjectFlock(c.Context(), *req.ProjectFlockId, &id); err != nil {
+				s.Log.Errorf("Failed to check kandang activity for project flock %d: %+v", *req.ProjectFlockId, err)
+				return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to check active kandang for project flock")
+			} else if active {
+				return nil, fiber.NewError(fiber.StatusConflict, "Project flock already has an active kandang")
+			}
 		}
 	}
 
-	if len(updateBody) == 0 {
-		return s.GetOne(c, id)
+	if len(updateBody) > 0 {
+		if err := s.Repository.PatchOne(c.Context(), id, updateBody, nil); err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return nil, fiber.NewError(fiber.StatusNotFound, "Kandang not found")
+			}
+			s.Log.Errorf("Failed to update kandang: %+v", err)
+			return nil, err
+		}
 	}
 
-	if err := s.Repository.PatchOne(c.Context(), id, updateBody, nil); err != nil {
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			return nil, fiber.NewError(fiber.StatusNotFound, "Kandang not found")
+	if req.ProjectFlockId != nil {
+		if err := s.Repository.UpsertProjectFlockKandang(c.Context(), *req.ProjectFlockId, id); err != nil {
+			s.Log.Errorf("Failed to upsert pivot kandang-project_flock: %+v", err)
+			return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to link kandang to project flock")
 		}
-		s.Log.Errorf("Failed to update kandang: %+v", err)
-		return nil, err
 	}
 
 	return s.GetOne(c, id)

internal/modules/production/project_flocks/route.go

@@ -28,4 +28,5 @@ func ProjectflockRoutes(v1 fiber.Router, u user.UserService, s projectflock.Proj
 	route.Get("/kandangs/lookup", ctrl.LookupProjectFlockKandang)
 	route.Post("/approvals", ctrl.Approval)
 	route.Get("/flocks/:flock_id/periods", ctrl.GetFlockPeriodSummary)
+	
 }

internal/modules/production/project_flocks/services/projectflock.service.go

@@ -107,9 +107,14 @@ func (s projectflockService) GetAll(c *fiber.Ctx, params *validation.Query) ([]e
 			db = db.Where("project_flocks.period = ?", params.Period)
 		}
 		if len(params.KandangIds) > 0 {
-			db = db.Where("EXISTS (SELECT 1 FROM kandangs WHERE kandangs.project_flock_id = project_flocks.id AND kandangs.id IN ?)", params.KandangIds)
+			db = db.Where(`
+        EXISTS (
+            SELECT 1
+            FROM project_flock_kandangs pfk
+            WHERE pfk.project_flock_id = project_flocks.id
+              AND pfk.kandang_id IN ?
+        )`, params.KandangIds)
 		}
-
 		if params.Search != "" {
 			normalizedSearch := strings.ToLower(strings.TrimSpace(params.Search))
 			if normalizedSearch == "" {
@@ -250,10 +255,11 @@ func (s *projectflockService) CreateOne(c *fiber.Ctx, req *validation.Create) (*
 	if len(kandangs) != len(kandangIDs) {
 		return nil, fiber.NewError(fiber.StatusNotFound, "Some kandangs not found")
 	}
-	for _, kandang := range kandangs {
-		if kandang.ProjectFlockId != nil {
-			return nil, fiber.NewError(fiber.StatusConflict, fmt.Sprintf("Kandang %s sudah memiliki project flock", kandang.Name))
-		}
+	// larang kalau ada yg sudah terikat ke project lain
+	if linked, err := s.anyKandangLinkedToOtherProject(c.Context(), s.Repository.DB(), kandangIDs, nil); err != nil {
+		return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to validate kandangs linkage")
+	} else if linked {
+		return nil, fiber.NewError(fiber.StatusConflict, "Beberapa kandang sudah terikat dengan project flock lain")
 	}
 
 	createBody := &entity.ProjectFlock{
@@ -394,11 +400,12 @@ func (s projectflockService) UpdateOne(c *fiber.Ctx, req *validation.Update, id
 		if len(kandangs) != len(newKandangIDs) {
 			return nil, fiber.NewError(fiber.StatusNotFound, "Some kandangs not found")
 		}
-		for _, k := range kandangs {
-			if k.ProjectFlockId != nil && *k.ProjectFlockId != id {
-				return nil, fiber.NewError(fiber.StatusConflict, fmt.Sprintf("Kandang %s sudah terikat dengan project flock lain", k.Name))
-			}
+		if linked, err := s.anyKandangLinkedToOtherProject(c.Context(), s.Repository.DB(), newKandangIDs, &id); err != nil {
+			return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to validate kandangs linkage")
+		} else if linked {
+			return nil, fiber.NewError(fiber.StatusConflict, "Beberapa kandang sudah terikat dengan project flock lain")
 		}
+
 	}
 
 	hasChanges := hasBodyChanges || hasKandangChanges
@@ -754,7 +761,7 @@ func (s projectflockService) buildOrderExpressions(sortBy, sortOrder string) []s
 		}
 	case "kandangs":
 		return []string{
-			fmt.Sprintf("(SELECT COUNT(*) FROM kandangs WHERE kandangs.project_flock_id = project_flocks.id) %s", direction),
+			fmt.Sprintf("(SELECT COUNT(*) FROM project_flock_kandangs pfk WHERE pfk.project_flock_id = project_flocks.id) %s", direction),
 			fmt.Sprintf("project_flocks.id %s", direction),
 		}
 	case "period":
@@ -775,24 +782,50 @@ func (s projectflockService) attachKandangs(ctx context.Context, dbTransaction *
 		return nil
 	}
 
-	if err := dbTransaction.Model(&entity.Kandang{}).
+	if err := dbTransaction.
+		Model(&entity.Kandang{}).
 		Where("id IN ?", kandangIDs).
 		Updates(map[string]any{
-			"project_flock_id": projectFlockID,
-			"status":           string(utils.KandangStatusPengajuan),
+			"status": string(utils.KandangStatusPengajuan),
 		}).Error; err != nil {
-		return fiber.NewError(fiber.StatusInternalServerError, "Failed to update kandangs")
+		return fiber.NewError(fiber.StatusInternalServerError, "Failed to update kandangs status")
 	}
 
-	pivotRepo := s.pivotRepoWithTx(dbTransaction)
-	records := make([]*entity.ProjectFlockKandang, len(kandangIDs))
-	for i, id := range kandangIDs {
-		records[i] = &entity.ProjectFlockKandang{
-			ProjectFlockId: projectFlockID,
-			KandangId:      id,
+	var already []uint
+	if err := dbTransaction.
+		Table("project_flock_kandangs").
+		Where("project_flock_id = ? AND kandang_id IN ?", projectFlockID, kandangIDs).
+		Pluck("kandang_id", &already).Error; err != nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "Failed to check existing pivot")
+	}
+	exists := make(map[uint]struct{}, len(already))
+	for _, id := range already {
+		exists[id] = struct{}{}
+	}
+
+	var toAttach []uint
+	seen := make(map[uint]struct{}, len(kandangIDs)) 
+	for _, id := range kandangIDs {
+		if _, ok := seen[id]; ok {
+			continue
+		}
+		seen[id] = struct{}{}
+		if _, ok := exists[id]; !ok {
+			toAttach = append(toAttach, id)
 		}
 	}
-	if err := pivotRepo.CreateMany(ctx, records); err != nil {
+	if len(toAttach) == 0 {
+		return nil
+	}
+
+	records := make([]*entity.ProjectFlockKandang, 0, len(toAttach))
+	for _, id := range toAttach {
+		records = append(records, &entity.ProjectFlockKandang{
+			ProjectFlockId: projectFlockID,
+			KandangId:      id,
+		})
+	}
+	if err := s.pivotRepoWithTx(dbTransaction).CreateMany(ctx, records); err != nil {
 		return fiber.NewError(fiber.StatusInternalServerError, "Failed to persist project flock history")
 	}
 	return nil
@@ -803,15 +836,15 @@ func (s projectflockService) detachKandangs(ctx context.Context, dbTransaction *
 		return nil
 	}
 
-	updates := map[string]any{"project_flock_id": nil}
 	if resetStatus {
-		updates["status"] = string(utils.KandangStatusNonActive)
-	}
-
-	if err := dbTransaction.Model(&entity.Kandang{}).
-		Where("id IN ?", kandangIDs).
-		Updates(updates).Error; err != nil {
-		return fiber.NewError(fiber.StatusInternalServerError, "Failed to update kandangs")
+		if err := dbTransaction.
+			Model(&entity.Kandang{}).
+			Where("id IN ?", kandangIDs).
+			Updates(map[string]any{
+				"status": string(utils.KandangStatusNonActive),
+			}).Error; err != nil {
+			return fiber.NewError(fiber.StatusInternalServerError, "Failed to update kandangs status")
+		}
 	}
 
 	if err := s.pivotRepoWithTx(dbTransaction).DeleteMany(ctx, projectFlockID, kandangIDs); err != nil {
@@ -820,9 +853,24 @@ func (s projectflockService) detachKandangs(ctx context.Context, dbTransaction *
 	return nil
 }
 
+
 func (s projectflockService) pivotRepoWithTx(dbTransaction *gorm.DB) repository.ProjectFlockKandangRepository {
 	if s.PivotRepo == nil {
 		return repository.NewProjectFlockKandangRepository(dbTransaction)
 	}
 	return s.PivotRepo.WithTx(dbTransaction)
 }
+
+func (s projectflockService) anyKandangLinkedToOtherProject(ctx context.Context, db *gorm.DB, kandangIDs []uint, exceptProjectID *uint) (bool, error) {
+	q := db.WithContext(ctx).
+		Table("project_flock_kandangs").
+		Where("kandang_id IN ?", kandangIDs)
+	if exceptProjectID != nil {
+		q = q.Where("project_flock_id <> ?", *exceptProjectID)
+	}
+	var count int64
+	if err := q.Count(&count).Error; err != nil {
+		return false, err
+	}
+	return count > 0, nil
+}

internal/modules/production/recordings/repositories/recording.repository.go

@@ -1,13 +1,38 @@
 package repository
 
 import (
-	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
+	"errors"
+	"math"
+	"sort"
+	"strings"
+
 	"gitlab.com/mbugroup/lti-api.git/internal/common/repository"
+	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
 	"gorm.io/gorm"
 )
 
 type RecordingRepository interface {
 	repository.BaseRepository[entity.Recording]
+
+	WithRelations(db *gorm.DB) *gorm.DB
+	GenerateNextDay(tx *gorm.DB, projectFlockKandangId uint) (int, error)
+
+	CreateBodyWeights(tx *gorm.DB, bodyWeights []entity.RecordingBW) error
+	DeleteBodyWeights(tx *gorm.DB, recordingID uint) error
+
+	CreateStocks(tx *gorm.DB, stocks []entity.RecordingStock) error
+	DeleteStocks(tx *gorm.DB, recordingID uint) error
+
+	CreateDepletions(tx *gorm.DB, depletions []entity.RecordingDepletion) error
+	DeleteDepletions(tx *gorm.DB, recordingID uint) error
+
+	SumRecordingDepletions(tx *gorm.DB, recordingID uint) (int64, error)
+	FindPreviousRecording(tx *gorm.DB, projectFlockKandangId uint, currentDay int) (*entity.Recording, error)
+	GetTotalChick(tx *gorm.DB, projectFlockKandangId uint) (int64, error)
+	GetAverageBodyWeight(tx *gorm.DB, recordingID uint) (float64, error)
+	GetFeedUsageInGrams(tx *gorm.DB, recordingID uint) (float64, error)
+	GetFcrID(tx *gorm.DB, projectFlockKandangId uint) (uint, error)
+	GetFcrStandardWeightKg(tx *gorm.DB, fcrId uint, currentWeightKg float64) (float64, bool, error)
 }
 
 type RecordingRepositoryImpl struct {
@@ -19,3 +44,235 @@ func NewRecordingRepository(db *gorm.DB) RecordingRepository {
 		BaseRepositoryImpl: repository.NewBaseRepository[entity.Recording](db),
 	}
 }
+
+func (r *RecordingRepositoryImpl) WithRelations(db *gorm.DB) *gorm.DB {
+	return db.
+		Preload("CreatedUser").
+		Preload("ProjectFlockKandang").
+		Preload("ProjectFlockKandang.ProjectFlock").
+		Preload("BodyWeights").
+		Preload("Depletions").
+		Preload("Depletions.ProductWarehouse").
+		Preload("Depletions.ProductWarehouse.Product").
+		Preload("Depletions.ProductWarehouse.Warehouse").
+		Preload("Stocks").
+		Preload("Stocks.ProductWarehouse").
+		Preload("Stocks.ProductWarehouse.Product").
+		Preload("Stocks.ProductWarehouse.Warehouse")
+}
+
+func (r *RecordingRepositoryImpl) GenerateNextDay(tx *gorm.DB, projectFlockKandangId uint) (int, error) {
+	var days []int
+	if err := tx.Model(&entity.Recording{}).
+		Where("project_flock_id = ?", projectFlockKandangId).
+		Where("day IS NOT NULL").
+		Pluck("day", &days).Error; err != nil {
+		return 0, err
+	}
+	return nextRecordingDay(days), nil
+}
+
+func (r *RecordingRepositoryImpl) CreateBodyWeights(tx *gorm.DB, bodyWeights []entity.RecordingBW) error {
+	if len(bodyWeights) == 0 {
+		return nil
+	}
+	return tx.Create(&bodyWeights).Error
+}
+
+func (r *RecordingRepositoryImpl) DeleteBodyWeights(tx *gorm.DB, recordingID uint) error {
+	return tx.Where("recording_id = ?", recordingID).Delete(&entity.RecordingBW{}).Error
+}
+
+func (r *RecordingRepositoryImpl) CreateStocks(tx *gorm.DB, stocks []entity.RecordingStock) error {
+	if len(stocks) == 0 {
+		return nil
+	}
+	return tx.Create(&stocks).Error
+}
+
+func (r *RecordingRepositoryImpl) DeleteStocks(tx *gorm.DB, recordingID uint) error {
+	return tx.Where("recording_id = ?", recordingID).Delete(&entity.RecordingStock{}).Error
+}
+
+func (r *RecordingRepositoryImpl) CreateDepletions(tx *gorm.DB, depletions []entity.RecordingDepletion) error {
+	if len(depletions) == 0 {
+		return nil
+	}
+	return tx.Create(&depletions).Error
+}
+
+func (r *RecordingRepositoryImpl) DeleteDepletions(tx *gorm.DB, recordingID uint) error {
+	return tx.Where("recording_id = ?", recordingID).Delete(&entity.RecordingDepletion{}).Error
+}
+
+func (r *RecordingRepositoryImpl) SumRecordingDepletions(tx *gorm.DB, recordingID uint) (int64, error) {
+	var result int64
+	if err := tx.Model(&entity.RecordingDepletion{}).
+		Where("recording_id = ?", recordingID).
+		Select("COALESCE(SUM(total), 0)").
+		Scan(&result).Error; err != nil {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (r *RecordingRepositoryImpl) FindPreviousRecording(tx *gorm.DB, projectFlockKandangId uint, currentDay int) (*entity.Recording, error) {
+	if currentDay <= 1 {
+		return nil, nil
+	}
+
+	var prev entity.Recording
+	err := tx.
+		Where("project_flock_id = ? AND day < ?", projectFlockKandangId, currentDay).
+		Where("day IS NOT NULL").
+		Order("day DESC").
+		Limit(1).
+		Find(&prev).Error
+
+	if errors.Is(err, gorm.ErrRecordNotFound) || prev.Id == 0 {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &prev, nil
+}
+
+func (r *RecordingRepositoryImpl) GetTotalChick(tx *gorm.DB, projectFlockKandangId uint) (int64, error) {
+	var population entity.ProjectFlockPopulation
+	err := tx.
+		Where("project_flock_kandang_id = ?", projectFlockKandangId).
+		Order("created_at DESC").
+		First(&population).Error
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return 0, nil
+	}
+	if err != nil {
+		return 0, err
+	}
+	return int64(math.Round(population.InitialQuantity)), nil
+}
+
+func (r *RecordingRepositoryImpl) GetAverageBodyWeight(tx *gorm.DB, recordingID uint) (float64, error) {
+	var result struct {
+		TotalWeight float64
+		TotalQty    float64
+	}
+	if err := tx.Model(&entity.RecordingBW{}).
+		Select("COALESCE(SUM(weight * qty), 0) AS total_weight, COALESCE(SUM(qty), 0) AS total_qty").
+		Where("recording_id = ?", recordingID).
+		Scan(&result).Error; err != nil {
+		return 0, err
+	}
+	if result.TotalQty == 0 {
+		return 0, nil
+	}
+	return result.TotalWeight / result.TotalQty, nil
+}
+
+func (r *RecordingRepositoryImpl) GetFeedUsageInGrams(tx *gorm.DB, recordingID uint) (float64, error) {
+	var rows []struct {
+		UsageAmount float64
+		UomName     string
+	}
+
+	if err := tx.
+		Table("recording_stocks").
+		Select("COALESCE(recording_stocks.usage_amount, 0) AS usage_amount, LOWER(uoms.name) AS uom_name").
+		Joins("JOIN product_warehouses ON product_warehouses.id = recording_stocks.product_warehouse_id").
+		Joins("JOIN products ON products.id = product_warehouses.product_id").
+		Joins("JOIN uoms ON uoms.id = products.uom_id").
+		Where("recording_stocks.recording_id = ?", recordingID).
+		Scan(&rows).Error; err != nil {
+		return 0, err
+	}
+
+	var total float64
+	for _, row := range rows {
+		if row.UsageAmount <= 0 {
+			continue
+		}
+		switch strings.TrimSpace(row.UomName) {
+		case "kilogram", "kg", "kilograms", "kilo":
+			total += row.UsageAmount * 1000
+		case "gram", "g", "grams":
+			total += row.UsageAmount
+		default:
+			total += row.UsageAmount
+		}
+	}
+	return total, nil
+}
+
+func (r *RecordingRepositoryImpl) GetFcrID(tx *gorm.DB, projectFlockKandangId uint) (uint, error) {
+	var result struct {
+		FcrID uint
+	}
+	if err := tx.Table("project_flock_kandangs").
+		Select("project_flocks.fcr_id AS fcr_id").
+		Joins("JOIN project_flocks ON project_flocks.id = project_flock_kandangs.project_flock_id").
+		Where("project_flock_kandangs.id = ?", projectFlockKandangId).
+		Scan(&result).Error; err != nil {
+		return 0, err
+	}
+	return result.FcrID, nil
+}
+
+func (r *RecordingRepositoryImpl) GetFcrStandardWeightKg(tx *gorm.DB, fcrId uint, currentWeightKg float64) (float64, bool, error) {
+	if fcrId == 0 {
+		return 0, false, nil
+	}
+
+	var standard entity.FcrStandard
+	err := tx.
+		Where("fcr_id = ? AND weight >= ?", fcrId, currentWeightKg).
+		Order("weight ASC").
+		First(&standard).Error
+
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		err = tx.
+			Where("fcr_id = ?", fcrId).
+			Order("weight DESC").
+			First(&standard).Error
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return 0, false, nil
+		}
+	}
+	if err != nil {
+		return 0, false, err
+	}
+
+	weight := standard.Weight
+	if weight > 10 {
+		return weight / 1000, true, nil
+	}
+	return weight, true, nil
+}
+
+func nextRecordingDay(days []int) int {
+	if len(days) == 0 {
+		return 1
+	}
+
+	unique := make(map[int]struct{}, len(days))
+	for _, day := range days {
+		if day > 0 {
+			unique[day] = struct{}{}
+		}
+	}
+
+	normalized := make([]int, 0, len(unique))
+	for day := range unique {
+		normalized = append(normalized, day)
+	}
+	sort.Ints(normalized)
+
+	for idx, day := range normalized {
+		expected := idx + 1
+		if day != expected {
+			return expected
+		}
+	}
+
+	return len(normalized) + 1
+}

internal/modules/production/recordings/services/recording.service.go

@@ -4,8 +4,6 @@ import (
 	"errors"
 	"fmt"
 	"math"
-	"sort"
-	"strings"
 	"time"
 
 	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
@@ -53,22 +51,6 @@ func NewRecordingService(
 	}
 }
 
-func (s recordingService) withRelations(db *gorm.DB) *gorm.DB {
-	return db.
-		Preload("CreatedUser").
-		Preload("ProjectFlockKandang").
-		Preload("ProjectFlockKandang.ProjectFlock").
-		Preload("BodyWeights").
-		Preload("Depletions").
-		Preload("Depletions.ProductWarehouse").
-		Preload("Depletions.ProductWarehouse.Product").
-		Preload("Depletions.ProductWarehouse.Warehouse").
-		Preload("Stocks").
-		Preload("Stocks.ProductWarehouse").
-		Preload("Stocks.ProductWarehouse.Product").
-		Preload("Stocks.ProductWarehouse.Warehouse")
-}
-
 func (s recordingService) GetAll(c *fiber.Ctx, params *validation.Query) ([]entity.Recording, int64, error) {
 	if err := s.Validate.Struct(params); err != nil {
 		return nil, 0, err
@@ -85,7 +67,7 @@ func (s recordingService) GetAll(c *fiber.Ctx, params *validation.Query) ([]enti
 	offset := (page - 1) * limit
 
 	recordings, total, err := s.Repository.GetAll(c.Context(), offset, limit, func(db *gorm.DB) *gorm.DB {
-		db = s.withRelations(db)
+		db = s.Repository.WithRelations(db)
 		if params.ProjectFlockKandangId != 0 {
 			db = db.Where("project_flock_id = ?", params.ProjectFlockKandangId)
 		}
@@ -100,7 +82,9 @@ func (s recordingService) GetAll(c *fiber.Ctx, params *validation.Query) ([]enti
 }
 
 func (s recordingService) GetOne(c *fiber.Ctx, id uint) (*entity.Recording, error) {
-	recording, err := s.Repository.GetByID(c.Context(), id, s.withRelations)
+	recording, err := s.Repository.GetByID(c.Context(), id, func(db *gorm.DB) *gorm.DB {
+		return s.Repository.WithRelations(db)
+	})
 	if errors.Is(err, gorm.ErrRecordNotFound) {
 		return nil, fiber.NewError(fiber.StatusNotFound, "Recording not found")
 	}
@@ -117,7 +101,7 @@ func (s recordingService) GetNextDay(c *fiber.Ctx, projectFlockKandangId uint) (
 	}
 
 	db := s.Repository.DB().WithContext(c.Context())
-	next, err := s.generateNextDay(db, projectFlockKandangId)
+	next, err := s.Repository.GenerateNextDay(db, projectFlockKandangId)
 	if err != nil {
 		s.Log.Errorf("Failed to compute next recording day for project_flock_kandang_id=%d: %+v", projectFlockKandangId, err)
 		return 0, err
@@ -155,7 +139,7 @@ func (s *recordingService) CreateOne(c *fiber.Ctx, req *validation.Create) (*ent
 		}
 	}()
 
-	nextDay, err := s.generateNextDay(tx, req.ProjectFlockKandangId)
+	nextDay, err := s.Repository.GenerateNextDay(tx, req.ProjectFlockKandangId)
 	if err != nil {
 		_ = tx.Rollback()
 		s.Log.Errorf("Failed to determine recording day: %+v", err)
@@ -184,21 +168,25 @@ func (s *recordingService) CreateOne(c *fiber.Ctx, req *validation.Create) (*ent
 
 	if err := tx.Create(recording).Error; err != nil {
 		_ = tx.Rollback()
+		if errors.Is(err, gorm.ErrDuplicatedKey) {
+			dateStr := recordDate.Format("2006-01-02")
+			return nil, fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("Recording for project flock %d on %s already exists", req.ProjectFlockKandangId, dateStr))
+		}
 		s.Log.Errorf("Failed to create recording: %+v", err)
 		return nil, err
 	}
 
-	if err := s.persistBodyWeights(tx, recording.Id, req.BodyWeights); err != nil {
+	if err := s.Repository.CreateBodyWeights(tx, mapBodyWeights(recording.Id, req.BodyWeights)); err != nil {
 		_ = tx.Rollback()
 		s.Log.Errorf("Failed to persist body weights: %+v", err)
 		return nil, err
 	}
-	if err := s.persistStocks(tx, recording.Id, req.Stocks); err != nil {
+	if err := s.Repository.CreateStocks(tx, mapStocks(recording.Id, req.Stocks)); err != nil {
 		_ = tx.Rollback()
 		s.Log.Errorf("Failed to persist stocks: %+v", err)
 		return nil, err
 	}
-	if err := s.persistDepletions(tx, recording.Id, req.Depletions); err != nil {
+	if err := s.Repository.CreateDepletions(tx, mapDepletions(recording.Id, req.Depletions)); err != nil {
 		_ = tx.Rollback()
 		s.Log.Errorf("Failed to persist depletions: %+v", err)
 		return nil, err
@@ -254,7 +242,12 @@ func (s recordingService) UpdateOne(c *fiber.Ctx, req *validation.Update, id uin
 	recording.Ontime = ontimeValue
 
 	if req.BodyWeights != nil {
-		if err := s.replaceBodyWeights(tx, recording.Id, req.BodyWeights); err != nil {
+		if err := s.Repository.DeleteBodyWeights(tx, recording.Id); err != nil {
+			_ = tx.Rollback()
+			s.Log.Errorf("Failed to clear body weights: %+v", err)
+			return nil, err
+		}
+		if err := s.Repository.CreateBodyWeights(tx, mapBodyWeights(recording.Id, req.BodyWeights)); err != nil {
 			_ = tx.Rollback()
 			s.Log.Errorf("Failed to update body weights: %+v", err)
 			return nil, err
@@ -265,7 +258,12 @@ func (s recordingService) UpdateOne(c *fiber.Ctx, req *validation.Update, id uin
 			_ = tx.Rollback()
 			return nil, err
 		}
-		if err := s.replaceStocks(tx, recording.Id, req.Stocks); err != nil {
+		if err := s.Repository.DeleteStocks(tx, recording.Id); err != nil {
+			_ = tx.Rollback()
+			s.Log.Errorf("Failed to clear stocks: %+v", err)
+			return nil, err
+		}
+		if err := s.Repository.CreateStocks(tx, mapStocks(recording.Id, req.Stocks)); err != nil {
 			_ = tx.Rollback()
 			s.Log.Errorf("Failed to update stocks: %+v", err)
 			return nil, err
@@ -276,7 +274,12 @@ func (s recordingService) UpdateOne(c *fiber.Ctx, req *validation.Update, id uin
 			_ = tx.Rollback()
 			return nil, err
 		}
-		if err := s.replaceDepletions(tx, recording.Id, req.Depletions); err != nil {
+		if err := s.Repository.DeleteDepletions(tx, recording.Id); err != nil {
+			_ = tx.Rollback()
+			s.Log.Errorf("Failed to clear depletions: %+v", err)
+			return nil, err
+		}
+		if err := s.Repository.CreateDepletions(tx, mapDepletions(recording.Id, req.Depletions)); err != nil {
 			_ = tx.Rollback()
 			s.Log.Errorf("Failed to update depletions: %+v", err)
 			return nil, err
@@ -342,45 +345,6 @@ func (s *recordingService) ensureProductWarehousesExist(c *fiber.Ctx, stocks []v
 	return nil
 }
 
-func (s *recordingService) generateNextDay(tx *gorm.DB, projectFlockKandangId uint) (int, error) {
-	var days []int
-	if err := tx.Model(&entity.Recording{}).
-		Where("project_flock_id = ?", projectFlockKandangId).
-		Where("day IS NOT NULL").
-		Pluck("day", &days).Error; err != nil {
-		return 0, err
-	}
-	return nextRecordingDay(days), nil
-}
-
-func nextRecordingDay(days []int) int {
-	if len(days) == 0 {
-		return 1
-	}
-
-	unique := make(map[int]struct{}, len(days))
-	for _, day := range days {
-		if day > 0 {
-			unique[day] = struct{}{}
-		}
-	}
-
-	normalized := make([]int, 0, len(unique))
-	for day := range unique {
-		normalized = append(normalized, day)
-	}
-	sort.Ints(normalized)
-
-	for idx, day := range normalized {
-		expected := idx + 1
-		if day != expected {
-			return expected
-		}
-	}
-
-	return len(normalized) + 1
-}
-
 func computeOntime(recordDatetime, reference time.Time) bool {
 	return !recordDatetime.Before(reference)
 }
@@ -392,107 +356,81 @@ func boolToInt(v bool) int {
 	return 0
 }
 
-func (s *recordingService) persistBodyWeights(tx *gorm.DB, recordingID uint, payload []validation.BodyWeight) error {
+func mapBodyWeights(recordingID uint, payload []validation.BodyWeight) []entity.RecordingBW {
 	if len(payload) == 0 {
 		return nil
 	}
 
-	bodyWeights := make([]entity.RecordingBW, len(payload))
+	items := make([]entity.RecordingBW, len(payload))
 	for i, bw := range payload {
-		bodyWeights[i] = entity.RecordingBW{
+		items[i] = entity.RecordingBW{
 			RecordingId: recordingID,
 			Weight:      bw.Weight,
 			Qty:         bw.Qty,
 			Notes:       bw.Notes,
 		}
 	}
-
-	return tx.Create(&bodyWeights).Error
+	return items
 }
 
-func (s *recordingService) persistStocks(tx *gorm.DB, recordingID uint, payload []validation.Stock) error {
+func mapStocks(recordingID uint, payload []validation.Stock) []entity.RecordingStock {
 	if len(payload) == 0 {
 		return nil
 	}
 
-	stocks := make([]entity.RecordingStock, len(payload))
+	items := make([]entity.RecordingStock, len(payload))
 	for i, stock := range payload {
-		stocks[i] = entity.RecordingStock{
+		items[i] = entity.RecordingStock{
 			RecordingId:        recordingID,
 			ProductWarehouseId: stock.ProductWarehouseId,
 			Notes:              stock.Notes,
 		}
 		if stock.Increase != nil {
 			val := *stock.Increase
-			stocks[i].Increase = &val
+			items[i].Increase = &val
 		}
 		if stock.Decrease != nil {
 			val := *stock.Decrease
-			stocks[i].Decrease = &val
+			items[i].Decrease = &val
 		}
 		if stock.UsageAmount != nil {
 			val := *stock.UsageAmount
-			stocks[i].UsageAmount = &val
+			items[i].UsageAmount = &val
 		}
 	}
-
-	return tx.Create(&stocks).Error
+	return items
 }
 
-func (s *recordingService) persistDepletions(tx *gorm.DB, recordingID uint, payload []validation.Depletion) error {
+func mapDepletions(recordingID uint, payload []validation.Depletion) []entity.RecordingDepletion {
 	if len(payload) == 0 {
 		return nil
 	}
 
-	depletions := make([]entity.RecordingDepletion, len(payload))
-	for i, depl := range payload {
-		total := depl.Total
-		depletions[i] = entity.RecordingDepletion{
+	items := make([]entity.RecordingDepletion, len(payload))
+	for i, dep := range payload {
+		total := dep.Total
+		items[i] = entity.RecordingDepletion{
 			RecordingId:        recordingID,
-			ProductWarehouseId: depl.ProductWarehouseId,
+			ProductWarehouseId: dep.ProductWarehouseId,
 			Total:              total,
-			Notes:              depl.Notes,
+			Notes:              dep.Notes,
 		}
 	}
-
-	return tx.Create(&depletions).Error
+	return items
 }
 
-func (s *recordingService) replaceBodyWeights(tx *gorm.DB, recordingID uint, payload []validation.BodyWeight) error {
-	if err := tx.Where("recording_id = ?", recordingID).Delete(&entity.RecordingBW{}).Error; err != nil {
-		return err
-	}
-	return s.persistBodyWeights(tx, recordingID, payload)
-}
-
-func (s *recordingService) replaceStocks(tx *gorm.DB, recordingID uint, payload []validation.Stock) error {
-	if err := tx.Where("recording_id = ?", recordingID).Delete(&entity.RecordingStock{}).Error; err != nil {
-		return err
-	}
-	return s.persistStocks(tx, recordingID, payload)
-}
-
-func (s *recordingService) replaceDepletions(tx *gorm.DB, recordingID uint, payload []validation.Depletion) error {
-	if err := tx.Where("recording_id = ?", recordingID).Delete(&entity.RecordingDepletion{}).Error; err != nil {
-		return err
-	}
-	return s.persistDepletions(tx, recordingID, payload)
-}
-
-// === Metrics Calculation ===
-
 func (s *recordingService) computeAndUpdateMetrics(tx *gorm.DB, recording *entity.Recording) error {
 	day := 0
 	if recording.Day != nil {
 		day = *recording.Day
 	}
 
-	totalDepletion, err := s.sumRecordingDepletions(tx, recording.Id)
+	totalDepletion, err := s.Repository.SumRecordingDepletions(tx, recording.Id)
 	if err != nil {
 		return fmt.Errorf("sumRecordingDepletions: %w", err)
 	}
 
-	prevRecording, err := s.getPreviousRecording(tx, recording.ProjectFlockKandangId, day)
+	prevRecording, err := s.Repository.FindPreviousRecording(tx, recording.ProjectFlockKandangId, day)
 	if err != nil {
 		return fmt.Errorf("getPreviousRecording: %w", err)
 	}
@@ -507,28 +445,28 @@ func (s *recordingService) computeAndUpdateMetrics(tx *gorm.DB, recording *entit
 		if prevRecording.CumIntake != nil {
 			prevCumIntake = float64(*prevRecording.CumIntake)
 		}
-		prevAvgWeight, err = s.getAverageBodyWeight(tx, prevRecording.Id)
+		prevAvgWeight, err = s.Repository.GetAverageBodyWeight(tx, prevRecording.Id)
 		if err != nil {
 			return fmt.Errorf("getAverageBodyWeight(prev): %w", err)
 		}
 	}
 
-	totalChick, err := s.getTotalChick(tx, recording.ProjectFlockKandangId)
+	totalChick, err := s.Repository.GetTotalChick(tx, recording.ProjectFlockKandangId)
 	if err != nil {
 		return fmt.Errorf("getTotalChick: %w", err)
 	}
 
-	currentAvgWeight, err := s.getAverageBodyWeight(tx, recording.Id)
+	currentAvgWeight, err := s.Repository.GetAverageBodyWeight(tx, recording.Id)
 	if err != nil {
 		return fmt.Errorf("getAverageBodyWeight(current): %w", err)
 	}
 
-	usageInGrams, err := s.getFeedUsageInGrams(tx, recording.Id)
+	usageInGrams, err := s.Repository.GetFeedUsageInGrams(tx, recording.Id)
 	if err != nil {
 		return fmt.Errorf("getFeedUsageInGrams: %w", err)
 	}
 
-	fcrId, err := s.getFcrID(tx, recording.ProjectFlockKandangId)
+	fcrId, err := s.Repository.GetFcrID(tx, recording.ProjectFlockKandangId)
 	if err != nil {
 		return fmt.Errorf("getFcrID: %w", err)
 	}
@@ -551,11 +489,11 @@ func (s *recordingService) computeAndUpdateMetrics(tx *gorm.DB, recording *entit
 
 	if totalChick > 0 {
 		remainingChick := totalChick - cumDepletion
-        if remainingChick < 0 {
-            remainingChick = 0
-        }
-        updates["total_chick"] = remainingChick
-        recording.TotalChick = &remainingChick
+		if remainingChick < 0 {
+			remainingChick = 0
+		}
+		updates["total_chick"] = remainingChick
+		recording.TotalChick = &remainingChick
 
 		cumRate := (float64(cumDepletion) / float64(totalChick)) * 100
 		updates["cum_depletion_rate"] = cumRate
@@ -587,7 +525,7 @@ func (s *recordingService) computeAndUpdateMetrics(tx *gorm.DB, recording *entit
 	}
 
 	if fcrId != 0 && currentAvgKg > 0 && day > 0 {
-		if fcrWeightKg, ok, err := s.getFcrStandardWeightKg(tx, fcrId, currentAvgKg); err != nil {
+		if fcrWeightKg, ok, err := s.Repository.GetFcrStandardWeightKg(tx, fcrId, currentAvgKg); err != nil {
 			return fmt.Errorf("getFcrStandardWeightKg: %w", err)
 		} else if ok {
 			avgDailyGain := (currentAvgKg - fcrWeightKg) / float64(day)
@@ -644,153 +582,6 @@ func (s *recordingService) computeAndUpdateMetrics(tx *gorm.DB, recording *entit
 	return nil
 }
 
-// === Query Helpers ===
-
-func (s *recordingService) sumRecordingDepletions(tx *gorm.DB, recordingID uint) (int64, error) {
-	var result int64
-	if err := tx.Model(&entity.RecordingDepletion{}).
-		Where("recording_id = ?", recordingID).
-		Select("COALESCE(SUM(total), 0)").
-		Scan(&result).Error; err != nil {
-		return 0, err
-	}
-	return result, nil
-}
-
-func (s *recordingService) getPreviousRecording(tx *gorm.DB, projectFlockKandangId uint, currentDay int) (*entity.Recording, error) {
-	if currentDay <= 1 {
-		return nil, nil
-	}
-
-	var prev entity.Recording
-	err := tx.
-		Where("project_flock_id = ? AND day < ?", projectFlockKandangId, currentDay).
-		Where("day IS NOT NULL").
-		Order("day DESC").
-		Limit(1).
-		Find(&prev).Error
-
-	if errors.Is(err, gorm.ErrRecordNotFound) || prev.Id == 0 {
-		return nil, nil
-	}
-	if err != nil {
-		return nil, err
-	}
-	return &prev, nil
-}
-
-func (s *recordingService) getTotalChick(tx *gorm.DB, projectFlockKandangId uint) (int64, error) {
-	var population entity.ProjectFlockPopulation
-	err := tx.
-		Where("project_flock_kandang_id = ?", projectFlockKandangId).
-		Order("created_at DESC").
-		First(&population).Error
-	if errors.Is(err, gorm.ErrRecordNotFound) {
-		return 0, nil
-	}
-	if err != nil {
-		return 0, err
-	}
-	return int64(math.Round(population.InitialQuantity)), nil
-}
-
-func (s *recordingService) getAverageBodyWeight(tx *gorm.DB, recordingID uint) (float64, error) {
-	var result struct {
-		TotalWeight float64
-		TotalQty    float64
-	}
-	if err := tx.Model(&entity.RecordingBW{}).
-		Select("COALESCE(SUM(weight * qty), 0) AS total_weight, COALESCE(SUM(qty), 0) AS total_qty").
-		Where("recording_id = ?", recordingID).
-		Scan(&result).Error; err != nil {
-		return 0, err
-	}
-	if result.TotalQty == 0 {
-		return 0, nil
-	}
-	return result.TotalWeight / result.TotalQty, nil
-}
-
-func (s *recordingService) getFeedUsageInGrams(tx *gorm.DB, recordingID uint) (float64, error) {
-	var rows []struct {
-		UsageAmount float64
-		UomName     string
-	}
-
-	if err := tx.
-		Table("recording_stocks").
-		Select("COALESCE(recording_stocks.usage_amount, 0) AS usage_amount, LOWER(uoms.name) AS uom_name").
-		Joins("JOIN product_warehouses ON product_warehouses.id = recording_stocks.product_warehouse_id").
-		Joins("JOIN products ON products.id = product_warehouses.product_id").
-		Joins("JOIN uoms ON uoms.id = products.uom_id").
-		Where("recording_stocks.recording_id = ?", recordingID).
-		Scan(&rows).Error; err != nil {
-		return 0, err
-	}
-
-	var total float64
-	for _, row := range rows {
-		if row.UsageAmount <= 0 {
-			continue
-		}
-		switch strings.TrimSpace(row.UomName) {
-		case "kilogram", "kg", "kilograms", "kilo":
-			total += row.UsageAmount * 1000
-		case "gram", "g", "grams":
-			total += row.UsageAmount
-		default:
-			total += row.UsageAmount
-		}
-	}
-	return total, nil
-}
-
-func (s *recordingService) getFcrID(tx *gorm.DB, projectFlockKandangId uint) (uint, error) {
-	var result struct {
-		FcrID uint
-	}
-	if err := tx.Table("project_flock_kandangs").
-		Select("project_flocks.fcr_id AS fcr_id").
-		Joins("JOIN project_flocks ON project_flocks.id = project_flock_kandangs.project_flock_id").
-		Where("project_flock_kandangs.id = ?", projectFlockKandangId).
-		Scan(&result).Error; err != nil {
-		return 0, err
-	}
-	return result.FcrID, nil
-}
-
-func (s *recordingService) getFcrStandardWeightKg(tx *gorm.DB, fcrId uint, currentWeightKg float64) (float64, bool, error) {
-	if fcrId == 0 {
-		return 0, false, nil
-	}
-
-	var standard entity.FcrStandard
-	err := tx.
-		Where("fcr_id = ? AND weight >= ?", fcrId, currentWeightKg).
-		Order("weight ASC").
-		First(&standard).Error
-
-	if errors.Is(err, gorm.ErrRecordNotFound) {
-		err = tx.
-			Where("fcr_id = ?", fcrId).
-			Order("weight DESC").
-			First(&standard).Error
-		if errors.Is(err, gorm.ErrRecordNotFound) {
-			return 0, false, nil
-		}
-	}
-	if err != nil {
-		return 0, false, err
-	}
-
-	weight := standard.Weight
-	if weight > 10 {
-		// assume already in grams
-		return weight / 1000, true, nil
-	}
-	return weight, true, nil
-}
-
 // === Unit Helpers ===
 
 func toGrams(weight float64) float64 {