codex/fix: recheck and fix purchase receive failed and farm stock not shown on recording

internal/modules/purchases/services/fifo_stock_v2_helper.go

@@ -2,12 +2,14 @@ package service
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"strings"
 	"time"
 
 	commonSvc "gitlab.com/mbugroup/lti-api.git/internal/common/service"
 	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
+	"gitlab.com/mbugroup/lti-api.git/internal/utils"
 	"gorm.io/gorm"
 )
 
@@ -76,11 +78,53 @@ func resolvePurchaseFlagGroupByProductWarehouse(ctx context.Context, tx *gorm.DB
 		Order("rr.id ASC").
 		Limit(1).
 		Take(&selected).Error
+	if err == nil {
+		return strings.TrimSpace(selected.FlagGroupCode), nil
+	}
+	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
+		return "", err
+	}
+
+	type categoryRow struct {
+		CategoryCode string `gorm:"column:category_code"`
+	}
+
+	var category categoryRow
+	err = tx.WithContext(ctx).
+		Table("product_warehouses pw").
+		Select("pc.code AS category_code").
+		Joins("JOIN products p ON p.id = pw.product_id").
+		Joins("JOIN product_categories pc ON pc.id = p.product_category_id").
+		Where("pw.id = ?", productWarehouseID).
+		Limit(1).
+		Take(&category).Error
 	if err != nil {
 		return "", err
 	}
 
-	return strings.TrimSpace(selected.FlagGroupCode), nil
+	flagGroupCode := utils.LegacyFlagGroupCodeByProductCategoryCode(category.CategoryCode)
+	if flagGroupCode == "" {
+		return "", gorm.ErrRecordNotFound
+	}
+
+	var matched int64
+	err = tx.WithContext(ctx).
+		Table("fifo_stock_v2_route_rules rr").
+		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 = ?", purchaseStockableLane).
+		Where("rr.function_code = ?", purchaseInFunctionCode).
+		Where("rr.source_table = ?", purchaseSourceTable).
+		Where("rr.flag_group_code = ?", flagGroupCode).
+		Count(&matched).Error
+	if err != nil {
+		return "", err
+	}
+	if matched == 0 {
+		return "", gorm.ErrRecordNotFound
+	}
+
+	return flagGroupCode, nil
 }
 
 func assignEarliestAsOf(m map[uint]time.Time, productWarehouseID uint, asOf time.Time) {