feat: add room management functionality

internal/mapper/room_mapper.go

@@ -0,0 +1,43 @@
+package mapper
+
+import (
+	"wm-backend/internal/models"
+	db "wm-backend/sqlc_gen"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+func ToDomainRoom(r db.Room) *models.Room {
+	return &models.Room{
+		ID:          r.ID,
+		WarehouseID: r.WarehouseID,
+		Name:        r.Name,
+		Description: r.Description.String,
+		CreatedAt:   r.CreatedAt,
+		UpdatedAt:   r.UpdatedAt,
+	}
+}
+
+func ToModelRoom(r *models.Room) *db.CreateRoomParams {
+	return &db.CreateRoomParams{
+		WarehouseID: r.WarehouseID,
+		Name:        r.Name,
+		Description: pgtype.Text{
+			String: r.Description,
+			Valid:  r.Description != "",
+		},
+		CreatedAt: r.CreatedAt,
+	}
+}
+
+func ToUpdateModelRoom(r *models.Room) *db.UpdateRoomParams {
+	return &db.UpdateRoomParams{
+		Name: r.Name,
+		Description: pgtype.Text{
+			String: r.Description,
+			Valid:  r.Description != "",
+		},
+		UpdatedAt: r.UpdatedAt,
+		ID:        r.ID,
+	}
+}