import { NodePermissionBuilder } from './nodePermissionBuilder';

export class NodePermissionCollectionBuilder {
  nodePermissionBuilders: NodePermissionBuilder[];
  parentBuilder;

  constructor(parentBuilder) {
    this.nodePermissionBuilders = [];
    this.parentBuilder = parentBuilder;
  }

  addNodePermission(nodePermissionBuilder?: NodePermissionBuilder) {
    const builder =
      nodePermissionBuilder === null || nodePermissionBuilder == undefined
        ? new NodePermissionBuilder(this)
        : nodePermissionBuilder;

    this.nodePermissionBuilders.push(builder);
    return builder;
  }

  done() {
    return this.parentBuilder;
  }

  build() {
    let result = {};

    // Each NodePermission builder returns an object, with the node ID as property key and the permission array as value
    // we need to merge all of these to a single object the backend will accept.
    this.nodePermissionBuilders.forEach((builder) => {
      result = Object.assign(result, builder.build());
    });

    return result;
  }
}