diff --git a/digital-course-file/src/hooks/useFolder.js b/digital-course-file/src/hooks/useFolder.js
deleted file mode 100644
index 228d3e74b38d5b03be038c1eecd835609b085a4b..0000000000000000000000000000000000000000
--- a/digital-course-file/src/hooks/useFolder.js
+++ /dev/null
@@ -1,101 +0,0 @@
-import { useState,useReducer, useEffect } from "react";
-import { database } from '../fire.js'
-import firebase from 'firebase'
-
-export const ROOT_FOLDER = {name: 'Root', id : null , path : [] };
-
-export function useFolder( folderId = null, folder= null) {
-
-    // const {currentUser} = firebase.auth.currentUser;
-
-    const ACTIONS = {
-        SELECT_FOLDER : 'select-folder',
-        UPDATE_FOLDER : 'update-folder',
-        SET_CHILD_FOLDERS : 'set_child_folders',
-    }
-
-    function reducer( state, { type,payload } ){
-        
-        switch(type){
-            case ACTIONS.SELECT_FOLDER:
-                return{
-                    folderId : payload.folderId,
-                    folder : payload.folder,
-                    childFiles : [],
-                    childFolders : [],
-                };
-
-            case ACTIONS.UPDATE_FOLDER:
-                return{
-                    ...state,
-                    folder : payload.folder,
-                };
-
-             case ACTIONS.SET_CHILD_FOLDERS:
-                return{
-                    ...state,
-                    childFolders : payload.childFolders,
-                };    
-
-            default:
-                return state;
-
-        }
-
-    }
-
-
-    const[state,dispatch] = useReducer( reducer,{
-        folderId,
-        folder,
-        childFolders : [],
-        childFiles : []
-        } 
-    );
-
-    useEffect( () => {
-        dispatch({ type : ACTIONS.SELECT_FOLDER, payload : { folderId,folder }})
-    } ,[folderId,folder])
-
-
-    useEffect( ()=> {
-        if(folderId==null){
-            return dispatch({
-                type:  ACTIONS.UPDATE_FOLDER,
-                payload: {folder : ROOT_FOLDER},              
-            })
-        }
-
-        database.folders.doc(folderId).get()
-        .then(doc => {
-            dispatch({
-                type: ACTIONS.UPDATE_FOLDER,
-                payload : {folder: database.formatDoc(doc)}
-            })
-        })
-        .catch( ()=> {
-            dispatch({
-                type: ACTIONS.UPDATE_FOLDER,
-                payload : {folder: ROOT_FOLDER}
-            })
-        }) 
-
-        return state;
-    },[folderId])
-
-    
-    useEffect( () => {
-        return database.folders
-            .where("parentId", "==" ,folderId)
-            .where("userId","==", firebase.auth().currentUser.uid)
-            .orderBy("createdAt")
-            .onSnapshot(snapshot => {
-                dispatch({
-                    type: ACTIONS.SET_CHILD_FOLDERS,
-                    payload : { childFolders : snapshot.docs.map(database.formatDoc) }
-                })
-            })
-    },[folderId])
-
-    return state;
-}
\ No newline at end of file