refactor and add outlet product table

internal/repository/product_outlet_price_repository.go

@@ -0,0 +1,71 @@
+package repository
+
+import (
+	"context"
+
+	"apskel-pos-be/internal/entities"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+type ProductOutletPriceRepository interface {
+	GetByProductAndOutlet(ctx context.Context, productID, outletID uuid.UUID) (*entities.ProductOutletPrice, error)
+	GetByProduct(ctx context.Context, productID uuid.UUID) ([]*entities.ProductOutletPrice, error)
+	GetByOutlet(ctx context.Context, outletID uuid.UUID) ([]*entities.ProductOutletPrice, error)
+	Upsert(ctx context.Context, price *entities.ProductOutletPrice) error
+	Delete(ctx context.Context, id uuid.UUID) error
+	GetByID(ctx context.Context, id uuid.UUID) (*entities.ProductOutletPrice, error)
+}
+
+type ProductOutletPriceRepositoryImpl struct {
+	db *gorm.DB
+}
+
+func NewProductOutletPriceRepositoryImpl(db *gorm.DB) *ProductOutletPriceRepositoryImpl {
+	return &ProductOutletPriceRepositoryImpl{
+		db: db,
+	}
+}
+
+func (r *ProductOutletPriceRepositoryImpl) GetByProductAndOutlet(ctx context.Context, productID, outletID uuid.UUID) (*entities.ProductOutletPrice, error) {
+	var price entities.ProductOutletPrice
+	err := r.db.WithContext(ctx).Where("product_id = ? AND outlet_id = ?", productID, outletID).First(&price).Error
+	if err != nil {
+		return nil, err
+	}
+	return &price, nil
+}
+
+func (r *ProductOutletPriceRepositoryImpl) GetByProduct(ctx context.Context, productID uuid.UUID) ([]*entities.ProductOutletPrice, error) {
+	var prices []*entities.ProductOutletPrice
+	err := r.db.WithContext(ctx).Where("product_id = ?", productID).Find(&prices).Error
+	return prices, err
+}
+
+func (r *ProductOutletPriceRepositoryImpl) GetByOutlet(ctx context.Context, outletID uuid.UUID) ([]*entities.ProductOutletPrice, error) {
+	var prices []*entities.ProductOutletPrice
+	err := r.db.WithContext(ctx).Where("outlet_id = ?", outletID).Find(&prices).Error
+	return prices, err
+}
+
+func (r *ProductOutletPriceRepositoryImpl) Upsert(ctx context.Context, price *entities.ProductOutletPrice) error {
+	return r.db.WithContext(ctx).Clauses(clause.OnConflict{
+		Columns:   []clause.Column{{Name: "product_id"}, {Name: "outlet_id"}},
+		DoUpdates: clause.AssignmentColumns([]string{"price", "updated_at"}),
+	}).Create(price).Error
+}
+
+func (r *ProductOutletPriceRepositoryImpl) Delete(ctx context.Context, id uuid.UUID) error {
+	return r.db.WithContext(ctx).Delete(&entities.ProductOutletPrice{}, "id = ?", id).Error
+}
+
+func (r *ProductOutletPriceRepositoryImpl) GetByID(ctx context.Context, id uuid.UUID) (*entities.ProductOutletPrice, error) {
+	var price entities.ProductOutletPrice
+	err := r.db.WithContext(ctx).First(&price, "id = ?", id).Error
+	if err != nil {
+		return nil, err
+	}
+	return &price, nil
+}