added employee folder redux

redux/employee/employee.reducer.js

@@ -0,0 +1,36 @@
+import EmployeeActionTypes from "./employee.types";
+
+const INITIAL_STATE = {
+  currentEmployee: {
+    authorized: null,
+  },
+  employeeSigningIn: false,
+  error: null,
+};
+
+const employeeReducer = (state = INITIAL_STATE, action) => {
+  switch (action.type) {
+    case EmployeeActionTypes.SIGN_IN_EMPLOYEE_START:
+      return {
+        ...state,
+        employeeSigningIn: true,
+        error: null,
+      };
+    case EmployeeActionTypes.SIGN_IN_EMPLOYEE_SUCCESS:
+      return {
+        ...state,
+        currentEmployee: action.payload,
+        error: null,
+      };
+    case EmployeeActionTypes.SIGN_OUT_EMPLOYEE_SUCCESS:
+      return {
+        ...state,
+        currentEmployee: { authorized: false },
+        error: null,
+      };
+    default:
+      return state;
+  }
+};
+
+export default employeeReducer;