问反应错误我的社交媒体应用程序不起作用

EN

const authReducer = (state = { authData: null, loading: false, error: false, updateLoading: false },action) => {
  switch (action.type) {
    case "AUTH_START":
      return {...state, loading: true, error: false };
    case "AUTH_SUCCESS":
      localStorage.setItem("profile", JSON.stringify({...action?.data}));
      return {...state,  authData: action.data, loading: false, error: false };
    case "AUTH_FAIL":
      return {...state, loading: false, error: true };
    case "UPDATING_START":
      return {...state, updateLoading: true , error: false}
    case "UPDATING_SUCCESS":
      localStorage.setItem("profile", JSON.stringify({...action?.data}));
      return {...state, authData: action.data, updateLoading: false, error: false}  
    case "UPDATING_FAIL":
      return {...state, updateLoading: true, error: true}
    case "LOG_OUT":
      localStorage.clear();
      return {...state,  authData: null, loading: false, error: false, updateLoading: false }
    case "FOLLOW_USER":
      return {...state, authData: {...state.authData, user: {...state.authData.user, following: [...state.authData.user.following, action.data]} }}
    case "UNFOLLOW_USER":
      return {...state, authData: {...state.authData, user: {...state.authData.user, following: [...state.authData.user.following.filter((personId)=>personId!==action.data)]} }}
    default:
      return state;
  }
};

export default authReducer;