fixing filter pw for transfer, add transfer delete

internal/modules/production/project-flock-kandangs/services/project_flock_kandang.service.go

@@ -1,8 +1,10 @@
 package service
 
 import (
+	"context"
 	"errors"
 	"fmt"
+	"math"
 	"strings"
 	"time"
 
@@ -35,6 +37,7 @@ type projectFlockKandangService struct {
 	Validate             *validator.Validate
 	Repository           repository.ProjectFlockKandangRepository
 	ApprovalSvc          commonSvc.ApprovalService
+	FifoStockV2Svc       commonSvc.FifoStockV2Service
 	ExpenseRepo          expenseRepo.ExpenseRepository
 	WarehouseRepo        rWarehouse.WarehouseRepository
 	ProductWarehouseRepo rProductWarehouse.ProductWarehouseRepository
@@ -69,12 +72,13 @@ type ExpenseSummary struct {
 	Reference string  `json:"reference_number"`
 }
 
-func NewProjectFlockKandangService(repo repository.ProjectFlockKandangRepository, approvalSvc commonSvc.ApprovalService, expenseRepo expenseRepo.ExpenseRepository, warehouseRepo rWarehouse.WarehouseRepository, productWarehouseRepo rProductWarehouse.ProductWarehouseRepository, populationRepo repository.ProjectFlockPopulationRepository, kandangRepo kandangRepo.KandangRepository, validate *validator.Validate) ProjectFlockKandangService {
+func NewProjectFlockKandangService(repo repository.ProjectFlockKandangRepository, approvalSvc commonSvc.ApprovalService, fifoStockV2Svc commonSvc.FifoStockV2Service, expenseRepo expenseRepo.ExpenseRepository, warehouseRepo rWarehouse.WarehouseRepository, productWarehouseRepo rProductWarehouse.ProductWarehouseRepository, populationRepo repository.ProjectFlockPopulationRepository, kandangRepo kandangRepo.KandangRepository, validate *validator.Validate) ProjectFlockKandangService {
 	return &projectFlockKandangService{
 		Log:                  utils.Log,
 		Validate:             validate,
 		Repository:           repo,
 		ApprovalSvc:          approvalSvc,
+		FifoStockV2Svc:       fifoStockV2Svc,
 		ExpenseRepo:          expenseRepo,
 		WarehouseRepo:        warehouseRepo,
 		ProductWarehouseRepo: productWarehouseRepo,
@@ -671,7 +675,91 @@ func (s projectFlockKandangService) calculateAvailableQuantityForProductWarehous
 		if availableQty < 0 {
 			availableQty = 0
 		}
+
+		sourceAvailable, err := s.resolveLayingSourceAvailableQty(c.Context(), nil, productWarehouse.Id, nil)
+		if err != nil {
+			return 0, err
+		}
+		if sourceAvailable < availableQty {
+			availableQty = sourceAvailable
+		}
 	}
 
 	return availableQty, nil
 }
+
+func (s projectFlockKandangService) resolveLayingSourceAvailableQty(ctx context.Context, tx *gorm.DB, productWarehouseID uint, asOf *time.Time) (float64, error) {
+	if productWarehouseID == 0 || s.FifoStockV2Svc == nil {
+		return 0, nil
+	}
+
+	flagGroupCode, err := s.resolveFlagGroupByProductWarehouse(ctx, tx, productWarehouseID)
+	if err != nil {
+		return 0, err
+	}
+	if strings.TrimSpace(flagGroupCode) == "" {
+		return 0, nil
+	}
+
+	gatherRows, err := s.FifoStockV2Svc.Gather(ctx, commonSvc.FifoStockV2GatherRequest{
+		FlagGroupCode:      flagGroupCode,
+		Lane:               commonSvc.FifoStockV2Lane("STOCKABLE"),
+		AllocationPurpose:  entity.StockAllocationPurposeConsume,
+		ProductWarehouseID: productWarehouseID,
+		AsOf:               asOf,
+		Limit:              10000,
+		Tx:                 tx,
+	})
+	if err != nil {
+		return 0, err
+	}
+
+	total := 0.0
+	for _, row := range gatherRows {
+		if row.AvailableQuantity <= 0 {
+			continue
+		}
+		total += row.AvailableQuantity
+	}
+	return math.Max(total, 0), nil
+}
+
+func (s projectFlockKandangService) resolveFlagGroupByProductWarehouse(ctx context.Context, tx *gorm.DB, productWarehouseID uint) (string, error) {
+	type row struct {
+		FlagGroupCode string `gorm:"column:flag_group_code"`
+	}
+	selected := row{}
+
+	db := s.Repository.DB()
+	if tx != nil {
+		db = tx
+	}
+
+	err := db.WithContext(ctx).
+		Table("fifo_stock_v2_route_rules rr").
+		Select("rr.flag_group_code").
+		Joins("JOIN fifo_stock_v2_flag_groups fg ON fg.code = rr.flag_group_code AND fg.is_active = TRUE").
+		Where("rr.is_active = TRUE").
+		Where("rr.lane = 'STOCKABLE'").
+		Where(`
+			EXISTS (
+				SELECT 1
+				FROM product_warehouses pw
+				JOIN flags f ON f.flagable_id = pw.product_id
+				JOIN fifo_stock_v2_flag_members fm ON fm.flag_name = f.name AND fm.is_active = TRUE
+				WHERE pw.id = ?
+				  AND f.flagable_type = ?
+				  AND fm.flag_group_code = rr.flag_group_code
+			)
+		`, productWarehouseID, entity.FlagableTypeProduct).
+		Order("fg.priority ASC, rr.id ASC").
+		Limit(1).
+		Take(&selected).Error
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return "", nil
+		}
+		return "", err
+	}
+	return strings.TrimSpace(selected.FlagGroupCode), nil
+}