готовая лаба 5

Lab5/data.json

@@ -4,7 +4,7 @@
       "id": 0,
       "login": "dyctator",
       "password": "12345",
-      "role": "user"
+      "role": "admin"
     },
     {
       "login": "user",

Lab5/src/App.jsx

@@ -5,17 +5,20 @@ import { Outlet } from 'react-router-dom';
 import { CartProvider } from './components/cart/CartContext.jsx';
 import Footer from './components/footer/Footer.jsx';
 import Navigation from './components/navigation/Navigation.jsx';
+import { AuthProvider } from './components/logins/login/context/AuthContext.jsx';
 
 const App = ({ routes }) => {
   return (
-    <CartProvider>
+    <AuthProvider>
-      <Navigation routes={routes}></Navigation>
+      <CartProvider>
-      <Container className='p-2' as='main' fluid>
+        <Navigation routes={routes}></Navigation>
-        <Outlet />
+        <Container className='p-2' as='main' fluid>
-      </Container>
+          <Outlet />
-      <Footer />
+        </Container>
-      <Toaster position='top-center' reverseOrder={true} />
+        <Footer />
-    </CartProvider>
+        <Toaster position='top-center' reverseOrder={true} />
+      </CartProvider>
+    </AuthProvider>
   );
 };
 

Lab5/src/components/lines/News/UpdateNews.jsx

@@ -1,5 +1,5 @@
 import { useSearchParams } from 'react-router-dom';
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useContext } from 'react';
 import PropTypes from 'prop-types';
 import {
     Button, Container,
@@ -13,10 +13,17 @@ import useLinesFormModal from '../hooks/LinesFormModalHook';
 import LinesItemForm from '../form/LinesItemForm.jsx';
 import useLines from '../hooks/LinesHook';
 import Input from '../../input/Input.jsx';
+import { AuthContext } from '../../logins/login/context/AuthContext.jsx';
 // linesChangeHandle изменять состояние => при вызове изменения linesChangeHandle
 // должно все перерисовываться
 
 const UpdateNews = () => {
+    const { state, dispatch } = useContext(AuthContext);
+
+    let obj = null;
+    if (state.user !== null) {
+        [obj] = state.user;
+    }
     const [searchParams, setSearchParams] = useSearchParams();
 
     const [searchValue, setSearchValue] = useState(searchParams.get('q') || '');
@@ -44,7 +51,26 @@ const UpdateNews = () => {
     return (
         <>
         <Container className="col text-center">
-            <span className="mainSt">
+            {obj === null || obj.role === 'user' ? (
+                <>
+                    <span className="mainSt">
+                <b>Новости</b>
+            </span>
+            <Input name='search' value = {searchValue} onChange={(e) => setSearchValue(e.target.value)}
+                type='text' required />
+
+        <div className="mainDiv row">
+            {
+                lines.map((item) => {
+                        return <UpdateNew key={item.id}
+                            item={item}
+                            />;
+                })}
+        </div>
+                </>
+            ) : (
+                <>
+                    <span className="mainSt">
                 <b>Новости</b>
             </span>
             <Input name='search' value = {searchValue} onChange={(e) => setSearchValue(e.target.value)}
@@ -72,6 +98,8 @@ const UpdateNews = () => {
             title='Редактирование'>
             <LinesItemForm item={currentItem} handleChange={handleItemChange} />
         </ModalForm>
+                </>
+            )}
         </Container>
         </>
     );
@@ -79,6 +107,7 @@ const UpdateNews = () => {
 
 UpdateNews.propTypes = {
     item: PropTypes.object,
+    role: PropTypes.string,
 };
 
 export default UpdateNews;

Lab5/src/components/logins/hooks/EntrysDataHook.js

@@ -1,14 +1,10 @@
 import { useEffect, useState } from 'react';
 import EntrysDataApiService from '../service/EntrysDataApiService';
 
-const useEntrysData = (login, password) => {
+const useEntrysData = (login, password, expand) => {
     const [entrys, setEntrys] = useState([]);
 
     const getEntrysData = async () => {
-        let expand = `?login=${login}&password=${password}`;
-        if (password === '') {
-            expand = `?login=${login}`;
-        }
         const data = await EntrysDataApiService.getAll(expand);
         setEntrys(data ?? []);
     };

Lab5/src/components/logins/login/Entry/Entry.jsx

@@ -1,16 +1,19 @@
-import { useState } from 'react';
+import { useContext, useState } from 'react';
+import PropTypes from 'prop-types';
 import { Link } from 'react-router-dom';
 import toast from 'react-hot-toast';
 import { Button, Form } from 'react-bootstrap';
-import Input from '../../input/Input.jsx';
+import Input from '../../../input/Input.jsx';
-import useEntrysData from '../hooks/EntrysDataHook';
+import useEntrysData from '../../hooks/EntrysDataHook';
+import { AuthContext } from '../context/AuthContext.jsx';
 
 const Entry = () => {
     const [validated, setValidated] = useState(false);
     const [login, setLogin] = useState('');
     const [password, setPassword] = useState('');
-    const isLoginValid = (value) => /^[a-zA-Z]+$/.test(value);
+    const isLoginValid = (value) => /^[a-zA-Z0-9]+$/.test(value);
-    const { entrys } = useEntrysData(login, password);
+    const { entrys } = useEntrysData(login, password, `?login=${login}&password=${password}`);
+    const { state, dispatch } = useContext(AuthContext);
 
     const handleSubmit = (event) => {
         const form = event.currentTarget;
@@ -21,8 +24,12 @@ const Entry = () => {
                 if (entrys.length === 0) {
                     toast.error('Аккаунт не найден');
                 } else {
-                    setValidated(true);
+                setValidated(true);
-                    toast.success('Был произведён вход');
+                dispatch({
+                    type: 'LOGIN',
+                    payload: entrys,
+                  });
+                toast.success(`Был произведён вход: ${login}`);
                 }
             } else {
                 toast.error('Логин должен быть введён латинскими символами');
@@ -31,15 +38,24 @@ const Entry = () => {
         setValidated(true);
     };
 
+    const handleLogOut = () => {
+        dispatch({
+            type: 'LOGOUT',
+            payload: entrys,
+          });
+    };
+
     return (
         <main className="container-fluid text-center">
             <span className="mainSt">
                 <b>Личный кабинет</b>
             </span>
             <div className="rectpage4 d-flex row justify-content-center">
-            <span className="EntrysSt">
+            {state.user === null ? (
-                <b>Вход</b>
+        <>
-            </span>
+        <span className="EntrysSt">
+                    <b>Вход</b>
+                </span>
                 <Form className="col-md-4 m-0 w-auto" onSubmit={ handleSubmit } noValidate validated={validated}>
                     <label className="form-label"><b>Логин</b></label>
                     <Input name="login" value = { login } onChange={(e) => setLogin(e.target.value)}
@@ -50,9 +66,22 @@ const Entry = () => {
                     <Button className="btn btn-primary w-auto" type="submit" >Войти</Button>
                     <Button as={Link} to='/registrPage' variant = "danger" className="btn btn-primary w-auto" >Регистрация</Button>
                 </Form>
+            </>
+            ) : (
+                <>
+                <p className = 'EntrysSt'>Welcome, {state.user.map((item) => item.login)}</p>
+                <Button className="btn btn-primary w-25 h-25" variant = "danger" onClick = {handleLogOut}>
+                    Выйти
+                    </Button>
+                </>
+            )}
             </div>
         </main>
     );
 };
 
+Entry.propTypes = {
+    item: PropTypes.object,
+  };
+
 export default Entry;

Lab5/src/components/logins/login/Registration.jsx

@@ -10,8 +10,8 @@ const Entry = () => {
     const [validated, setValidated] = useState(false);
     const [login, setLogin] = useState('');
     const [password, setPassword] = useState('');
-    const isLoginValid = (value) => /^[a-zA-Z]+$/.test(value);
+    const isLoginValid = (value) => /^[a-zA-Z0-9]+$/.test(value);
-    const { entrys } = useEntrysData(login, '');
+    const { entrys } = useEntrysData(login, password, `?login=${login}`);
 
     const { UseHandleSubmit, UseHandleChange } = useEntrysItemForm();
 

Lab5/src/components/logins/login/context/AuthContext.jsx

@@ -0,0 +1,66 @@
+import { createContext, useReducer, useEffect } from 'react';
+import PropTypes from 'prop-types';
+
+// Функция для сохранения состояния user в localStorage
+const saveToLocalstorage = (user) => {
+  if (user) {
+    localStorage.setItem('authState', JSON.stringify(user));
+  } else {
+    localStorage.removeItem('authState');
+  }
+};
+
+// Функция для восстановления состояния user из localStorage
+const getInitialState = () => {
+  const userStorage = localStorage.getItem('authState');
+  if (userStorage) {
+    return { user: JSON.parse(userStorage) };
+  }
+  return { user: null };
+};
+
+const AuthReducer = (state, action) => {
+  switch (action.type) {
+    case 'LOGIN':
+      saveToLocalstorage(action.payload);
+      return {
+        ...state,
+        user: action.payload,
+      };
+    case 'LOGOUT':
+      saveToLocalstorage(null);
+      return {
+        ...state,
+        user: null,
+      };
+    default:
+      return state;
+  }
+};
+
+export const AuthContext = createContext();
+
+export const AuthProvider = ({ children }) => {
+  const [state, dispatch] = useReducer(AuthReducer, getInitialState, getInitialState);
+
+  // При инициализации компонента проверим localStorage
+  useEffect(() => {
+    const user = localStorage.getItem('authState');
+    if (user) {
+      dispatch({
+        type: 'LOGIN',
+        payload: JSON.parse(user),
+      });
+    }
+  }, []);
+
+  return (
+    <AuthContext.Provider value={{ state, dispatch }}>
+      {children}
+    </AuthContext.Provider>
+  );
+};
+
+AuthProvider.propTypes = {
+  children: PropTypes.node.isRequired,
+};

Lab5/src/main.jsx

@@ -32,7 +32,7 @@ const routes = [
   {
     path: '/page4',
     element: <Page4 />,
-    title: 'Вход',
+    title: 'Личный кабинет',
   },
   {
     path: '/page5',

Lab5/src/pages/Page4.jsx

@@ -1,4 +1,4 @@
-import Entry from '../components/logins/login/Entry.jsx';
+import Entry from '../components/logins/login/Entry/Entry.jsx';
 
 const Page4 = () => {
     return (