export enum RelationType {
  single,
  multiple,
}

export enum SingleRelationOperationType {
  set,
  unset,
}

export enum MultipleRelationOperationType {
  add,
  remove,
}

export interface ISingleRelationOperation {
  id: number | string;
  type: SingleRelationOperationType;
}

export interface IMultipleRelationOperation {
  id: number | string;
  type: MultipleRelationOperationType;
}

export type IRelationOperations = ISingleRelationOperation | IMultipleRelationOperation[];

export interface IBaseRelation {
  type: RelationType;
  property: string;
}

export interface IRelation extends IBaseRelation {
  singleOperation?: ISingleRelationOperation;
  multipleOperations?: IMultipleRelationOperation[];
}

export interface ISingleRelation extends IBaseRelation {
  operation: ISingleRelationOperation;
}

export interface IMultipleRelation extends IBaseRelation {
  operations: IMultipleRelationOperation[];
}