All files / src/app/core/store/content/page-tree page-tree.reducer.ts

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import { createReducer, on } from '@ngrx/store';
 
import { ContentPageTreeHelper } from 'ish-core/models/content-page-tree/content-page-tree.helper';
import { ContentPageTree } from 'ish-core/models/content-page-tree/content-page-tree.model';
 
import { loadContentPageTreeSuccess } from './page-tree.actions';
 
export interface PageTreeState {
  pagetree: ContentPageTree;
}
 
const initialState: PageTreeState = {
  pagetree: ContentPageTreeHelper.empty(),
};
 
function mergePageTrees(state: PageTreeState, action: ReturnType<typeof loadContentPageTreeSuccess>) {
  const pagetree = action.payload.pagetree;
  return pagetree
    ? {
        ...state,
        pagetree: ContentPageTreeHelper.merge(state.pagetree, pagetree),
      }
    : { ...state };
}
 
export const pageTreeReducer = createReducer(initialState, on(loadContentPageTreeSuccess, mergePageTrees));