First try appcommon as library

projects/common/src/lib/reducers/app-common.reducer.ts

@@ -0,0 +1,65 @@
+import { tassign } from 'tassign';
+import { IItemTypes} from '../models/item.types';
+import { IListItem } from '../models/list.item';
+import { IUser } from '../models/user';
+import * as appCommonActions from '../actions/app-common.actions';
+import { createSelector, createFeatureSelector, ActionReducerMap } from '@ngrx/store';
+
+import { MODULE_NAME } from '../module-name';
+
+export interface State {
+  openedModalName: string,
+  initialized: boolean,
+  rootItems: IListItem[],
+  itemTypes: IItemTypes,
+  user:IUser
+}
+
+export const initialState: State = {
+  openedModalName: null,
+  initialized: false,
+  rootItems: [],
+  itemTypes: {},
+  user:null
+}
+
+export function reducer(state = initialState, action: appCommonActions.Actions ): State {
+  switch (action.type) {
+    case appCommonActions.INITUSERSUCCESS: {
+      let a = action as appCommonActions.InitUserSuccess;
+      return tassign(state, { user: a.user });
+    }
+    case appCommonActions.INITROOTSUCCESS: {
+      let a = action as appCommonActions.InitRootSuccess;
+      return tassign(state, { rootItems:a.items});
+    }
+    case appCommonActions.OPENMODAL: {
+      return tassign(state, { openedModalName: action.modalName });
+    }      
+    case appCommonActions.CLOSEMODAL: {
+      return tassign(state, { openedModalName: null });
+    }
+    case appCommonActions.INITIALIZED: {
+      return tassign(state, { initialized: true });
+    }
+    case appCommonActions.LOADITEMTYPESSUCCESS: {
+      let a = action as appCommonActions.LoadItemTypesSuccess;
+      return tassign(state, { itemTypes: a.itemTypes });
+    }
+    default: {
+      return state;
+    }
+  }
+}
+
+export const getOpenedModalName = (state: State) => state.openedModalName;
+export const getInitialized = (state: State) => state.initialized;
+export const getItemTypes = (state: State) => state.itemTypes;
+export const getRootItems = (state: State) => state.rootItems;
+
+export const selectAppCommonState = createFeatureSelector<State>(MODULE_NAME);
+
+export const selectOpenedModalName = createSelector(selectAppCommonState, getOpenedModalName);
+export const selectGetInitialized = createSelector(selectAppCommonState, getInitialized);
+export const selectGetItemTypes = createSelector(selectAppCommonState, getItemTypes);
+export const selectGetRootItems = createSelector(selectAppCommonState, getRootItems);