easycode-react-08-2018 · PaskoDmitry · Sep 7, 2018
diff --git a/homework_3/blog/README.md b/homework_3/blog/README.md
diff --git a/homework_3/blog/package-lock.json b/homework_3/blog/package-lock.json
diff --git a/homework_3/blog/package.json b/homework_3/blog/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "blog",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "bootstrap": "^4.1.3",
+    "react": "^16.4.2",
+    "react-dom": "^16.4.2",
+    "react-scripts": "1.1.5"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test --env=jsdom",
+    "eject": "react-scripts eject"
+  }
+}
diff --git a/homework_3/blog/public/favicon.ico b/homework_3/blog/public/favicon.ico
diff --git a/homework_3/blog/public/index.html b/homework_3/blog/public/index.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+    <meta name="theme-color" content="#000000">
+    <!--
+      manifest.json provides metadata used when your web app is added to the
+      homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json">
+    <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>
+      You need to enable JavaScript to run this app.
+    </noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>
diff --git a/homework_3/blog/public/manifest.json b/homework_3/blog/public/manifest.json
@@ -0,0 +1,15 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    }
+  ],
+  "start_url": "./index.html",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}
diff --git a/homework_3/blog/src/App.css b/homework_3/blog/src/App.css
@@ -0,0 +1,29 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  animation: App-logo-spin infinite 20s linear;
+  height: 80px;
+}
+
+.App-header {
+  background-color: #222;
+  height: 150px;
+  padding: 20px;
+  color: white;
+}
+
+.App-title {
+  font-size: 1.5em;
+}
+
+.App-intro {
+  font-size: large;
+}
+
+@keyframes App-logo-spin {
+  from { transform: rotate(0deg); }
+  to { transform: rotate(360deg); }
+}
+
diff --git a/homework_3/blog/src/App.js b/homework_3/blog/src/App.js
@@ -0,0 +1,246 @@
+import React, {Component} from 'react';
+
+import './App.css';
+import 'bootstrap/dist/css/bootstrap.min.css';
+
+import {SignIn} from './components/sign-in-page';
+import {SignUp} from './components/sign-up-page';
+import {Users} from './components/users-page';
+
+class App extends Component {
+
+    constructor() {
+        super();
+
+        this.state = {
+            activePage: 'usersPage',
+            name: null,
+            password: null,
+            confirmPassword: null,
+            email: null,
+            errors: {},
+            users: {},
+            ifLogIn: false
+        }
+
+
+    }
+
+    handleInputChange = (event) => {
+
+        const target = event.target;
+        const value = target.value;
+        const name = target.name;
+
+        this.setState({
+            [name]: value
+        });
+    }
+
+    changePageToSignIn = () => {
+        this.setState({
+            activePage: 'signInPage'
+        });
+    }
+    changePageToSignUp = () => {
+        this.setState({
+            activePage: 'signUpPage'
+        });
+    }
+
+    changePageToUsers = () => {
+        this.setState({
+            activePage: 'usersPage'
+        });
+    }
+
+    signOut = () => {
+        this.setState({
+            name: null,
+            password: null,
+            confirmPassword: null,
+            email: null,
+            errors: {},
+            ifLogIn: false
+        });
+    }
+
+    validate = (key) => {
+        let errors = {};
+
+        if (!this.state.name)
+            errors.name = "Name field is empty";
+        else if (/[^a-zA-Z0-9_-]/.test(this.state.name))
+            errors.name = "You can use only a-z, A-Z, 0-9, - и _.";
+
+
+        if (!this.state.password)
+            errors.password = "Password field is empty";
+        else if (this.state.password.length < 4)
+            errors.password = "Password should be more than 4 simbols";
+
+        if (key === 'signup') {
+            if (!this.state.confirmPassword)
+                errors.confirmPassword = "confirmPassword field is empty";
+            else if (this.state.confirmPassword !== this.state.password)
+                errors.confirmPassword = "confirmPassword isn't the same as password";
+
+            if (!this.state.email)
+                errors.email = "Email field is empty";
+            else if (!((this.state.email.indexOf(".") > 0) && (this.state.email.indexOf("@") > 0)) || /[^a-zA-Z0-9.@_-]/.test(this.state.email))
+                errors.email = "Email is incorrect";
+        }
+
+        return errors;
+
+    }
+
+    sendRequest = (arg) => {
+
+        let errors = this.validate(arg);
+        let params;
+        if (Object.keys(errors).length) {
+            this.setState({
+                errors: errors
+            });
+            return;
+        } else {
+            this.setState({
+                errors: ''
+            });
+            if (arg === 'signup') {
+                params = {
+                    email: this.state.email,
+                    user: this.state.name,
+                    password: this.state.password
+                }
+            } else {
+                params = {
+                    user: this.state.name,
+                    password: this.state.password
+                }
+            }
+        }
+
+        fetch('https://flatearth-api.herokuapp.com/api/v1/auth/' + arg, {
+            method: 'POST',
+            headers: {
+                'Accept': 'application/json, text/plain, */*',
+                'Content-Type': 'application/json'
+            },
+            body: JSON.stringify(
+                params
+            )
+        }).then(res => res.json())
+            .then(res => {
+                console.log(res)
+                if(res.status === 'error'){
+                    this.setState({
+                        errors: {
+                           requestErrors: res.message
+                        }
+                    });
+                }else if (arg === 'signup'){
+                    this.setState({
+                        activePage: 'signInPage',
+                        errors: {}
+                    });
+                }else {
+                    this.setState({
+                        token: res.message.token,
+                        errors: {},
+                        ifLogIn: true
+                    });
+                    this.sendSecretRequest();
+                }
+            });
+
+    }
+
+
+    sendSecretRequest = () => {
+
+        fetch('https://flatearth-api.herokuapp.com/api/v1/auth/secret', {
+            method: 'GET',
+            headers: {
+                'Accept': 'application/json, text/plain, */*',
+                'Content-Type': 'application/json',
+                'Authorization': 'Bearer ' +  this.state.token
+            }
+        }).then(res => res.json())
+            .then(res => {
+                console.log(res);
+                if(res.status === 'error'){
+                    this.setState({
+                        errors: {
+                            requestErrors: res.message
+                        }
+                    });
+                }else{
+                    this.setState({
+                        activePage: 'usersPage',
+                        errors: {},
+                        users: res.message
+                    });
+                }
+            });
+
+    }
+
+    render() {
+
+        const {
+            activePage,
+        } = this.state;
+
+        let buttons = this.state.ifLogIn ? <div className="input-group mb-3"><button type="btn" className="btn btn-primary" onClick={this.signOut}>Sign Out</button></div> : <div className="input-group mb-3">
+            <button type="btn" className="btn btn-primary" onClick={this.changePageToSignIn}>Sign In</button>
+            <button type="btn" className="btn btn-primary" onClick={this.changePageToSignUp}>Sign Up</button>
+        </div>
+
+        let nameInHeader = this.state.ifLogIn ? <span>{this.state.name}</span> : ''
+
+        if (activePage === 'usersPage') {
+            return (
+                <div>
+                    <div>
+                        {nameInHeader}
+                        {buttons}
+                    </div>
+
+                    <Users users={this.state.users}/>
+                </div>
+            )
+        }
+
+        if (activePage === 'signInPage') {
+            return (
+                <div>
+                    {buttons}
+                    <SignIn
+                        handleInputChange={this.handleInputChange}
+                        sendRequest={this.sendRequest}
+                        errors={this.state.errors}
+                    />
+                </div>
+            )
+        }
+
+        if (activePage === 'signUpPage') {
+            return (
+                <div>
+                    {buttons}
+                    <SignUp
+                        handleInputChange={this.handleInputChange}
+                        sendRequest={this.sendRequest}
+                        errors={this.state.errors}
+                    />
+                </div>
+            )
+        }
+
+
+    }
+}
+
+export default App;
diff --git a/homework_3/blog/src/App.test.js b/homework_3/blog/src/App.test.js
@@ -0,0 +1,9 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import App from './App';
+
+it('renders without crashing', () => {
+  const div = document.createElement('div');
+  ReactDOM.render(<App />, div);
+  ReactDOM.unmountComponentAtNode(div);
+});
diff --git a/homework_3/blog/src/components/sign-in-page.js b/homework_3/blog/src/components/sign-in-page.js
@@ -0,0 +1,33 @@
+import React, {Component} from 'react';
+
+
+export class SignIn extends Component {
+    render() {
+        const style = {
+            color: 'red'
+        }
+        return (
+            <div className="container">
+                <form>
+
+                    <div className="form-group">
+                        <input type="text" name="name" className="form-control" placeholder="enter user name"
+                               onChange={this.props.handleInputChange}/>
+                        <span style={style}>{this.props.errors.name}</span>
+                    </div>
+                    <div className="form-group">
+                        <input type="password" name="password" className="form-control" placeholder="enter password"
+                               onChange={this.props.handleInputChange}/>
+                        <span style={style}>{this.props.errors.password}</span>
+                    </div>
+                    <div className="form-group">
+                        <button type="button" onClick={() => this.props.sendRequest('login')}
+                                className="btn btn-primary">Log In
+                        </button>
+                    </div>
+                </form>
+            </div>
+        );
+    }
+}
+