Major update

app/src/components/divisions/reducer.ts

@@ -0,0 +1,50 @@
+import { IDivisionsState } from './IDivisionsState';
+import { IDivision } from '../../models/IDivision';
+
+export type Action =
+  | { type: 'SET_ITEMS'; payload: IDivision[] }
+  | { type: 'SET_CURRENT_PAGE_NUMBER'; payload: number }
+  | { type: 'SET_PAGE_SIZE'; payload: number }
+  | { type: 'SET_IS_PANEL_OPEN'; payload: boolean };
+
+export const initialState: IDivisionsState = {
+  items: [],
+  currentPageNumber: 1,
+  pageSize: 10,
+  isPanelOpen: false
+};
+
+export const reducer = (
+  state: IDivisionsState,
+  action: Action
+): IDivisionsState => {
+  switch (action.type) {
+    case 'SET_ITEMS': {
+      return {
+        ...state,
+        items: action.payload
+      };
+    }
+    case 'SET_CURRENT_PAGE_NUMBER': {
+      return {
+        ...state,
+        currentPageNumber: action.payload
+      };
+    }
+    case 'SET_PAGE_SIZE': {
+      return {
+        ...state,
+        pageSize: action.payload
+      };
+    }
+    case 'SET_IS_PANEL_OPEN': {
+      return {
+        ...state,
+        isPanelOpen: action.payload
+      };
+    }
+    default: {
+      return state;
+    }
+  }
+};