snow leopards - Aretta B.

project-docs/wave-03.md

@@ -6,7 +6,7 @@ In this wave we will update the components to manage a **like** feature.
 
 - Add behavior to heart button in `ChatEntry` so that when it is clicked it toggles from an empty heart (🤍) to a filled heart (❤️) and from a filled heart (❤️) to an empty heart (🤍).
 - Manage the click event and state of the chat entries such that when the like status of a chat message changes by clicking the heart button, it is tracked by the `App` and the `App` reports the number of total messages that have been liked.
-    - Example: If the user has liked three messages, `3 ❤️s` will appear at the top of the screen.
+- Example: If the user has liked three messages, `3 ❤️s` will appear at the top of the screen.
 
 <details>
     <summary>Expand to see hints for implementing this feature</summary>

src/App.js

@@ -1,19 +1,50 @@
 import React from 'react';
 import './App.css';
+import { useState } from 'react';
+import ChatLog from './components/ChatLog';
 import chatMessages from './data/messages.json';
 
 const App = () => {
+  const [likedData, setLikedData] = useState(chatMessages);
+
+  const switchLikeButton = (id) => {
+    setLikedData(likedData => likedData.map(entry => {
+      if (entry.id === id) {
+        return {...entry, liked: !entry.liked}
+      } else {
+        return entry;
+      }
+    }))
+  };
+
+  const countTotalLikes = (likedData) => {
+    let likedHeart = '❤️'
+    let numberOfHearts = 0
+    return likedData.reduce((totalLikes, chat) => {
+      if (chat.liked) {
+        numberOfHearts += 1
+      }
+      return `${numberOfHearts} ${likedHeart}s`;
+    }, 1);
+  };
+
+  const countLikes = countTotalLikes(likedData);
+
+
   return (
     <div id="App">
       <header>
-        <h1>Application title</h1>
+        <h1>Chat App</h1>
+        <p> {countLikes}</p>
       </header>
       <main>
-        {/* Wave 01: Render one ChatEntry component
-        Wave 02: Render ChatLog component */}
+      <ChatLog entries={likedData} onLiked={switchLikeButton}
+      />
       </main>
     </div>
   );
 };
 
+
+
 export default App;

src/components/ChatEntry.js

@@ -1,22 +1,31 @@
 import React from 'react';
 import './ChatEntry.css';
 import PropTypes from 'prop-types';
+import TimeStamp from './TimeStamp';
+
 
 const ChatEntry = (props) => {
+  const heart = props.liked ? '❤️' : '🤍';
   return (
-    <div className="chat-entry local">
-      <h2 className="entry-name">Replace with name of sender</h2>
+    <div className={props.sender==='Vladimir'? 'chat-entry local': 'chat-entry remote' } >
+      <h2 className="entry-name">{props.sender}</h2>
       <section className="entry-bubble">
-        <p>Replace with body of ChatEntry</p>
-        <p className="entry-time">Replace with TimeStamp component</p>
-        <button className="like">🤍</button>
+        <p>{props.body}</p>
+        <p className="entry-time"><TimeStamp time={props.timeStamp}/></p>
+        <button className="like" onClick={() => props.onLiked(props.id)}>{heart}</button>
       </section>
     </div>
   );
 };
 
 ChatEntry.propTypes = {
-  //Fill with correct proptypes
+  sender: PropTypes.string.isRequired,
+  id: PropTypes.number.isRequired,
+  body: PropTypes.string.isRequired,
+  liked: PropTypes.bool.isRequired,
+  onLiked: PropTypes.func.isRequired,
+  timeStamp: PropTypes.any.isRequired
+
 };
 
 export default ChatEntry;

src/components/ChatEntry.test.js

@@ -1,9 +1,9 @@
-import React from "react";
-import "@testing-library/jest-dom/extend-expect";
-import ChatEntry from "./ChatEntry";
-import { render, screen, fireEvent, waitFor } from "@testing-library/react";
+import React from 'react';
+import '@testing-library/jest-dom/extend-expect';
+import ChatEntry from './ChatEntry';
+import { render, screen, fireEvent, waitFor } from '@testing-library/react';
 
-describe("Wave 01: ChatEntry", () => {
+describe('Wave 01: ChatEntry', () => {
   beforeEach(() => {
     render(
       <ChatEntry
@@ -14,15 +14,15 @@ describe("Wave 01: ChatEntry", () => {
     );
   });
 
-  test("renders without crashing and shows the sender", () => {
+  test('renders without crashing and shows the sender', () => {
     expect(screen.getByText(/Joe Biden/)).toBeInTheDocument();
   });
 
-  test("that it will display the body", () => {
+  test('that it will display the body', () => {
     expect(screen.getByText(/Get out by 8am/)).toBeInTheDocument();
   });
 
-  test("that it will display the time", () => {
+  test('that it will display the time', () => {
     expect(screen.getByText(/\d+ years ago/)).toBeInTheDocument();
   });
 });

src/components/ChatLog.js

@@ -0,0 +1,35 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+
+import ChatEntry from './ChatEntry';
+
+const ChatLog = (props) => {
+    const getEntries = 
+    props.entries.map((entry)=> {
+        return (
+            <ChatEntry
+                sender={entry.sender}
+                id={entry.id}
+                body={entry.body}
+                liked={entry.liked}
+                timeStamp={entry.timeStamp}
+                key={entry.id}
+                onLiked={props.onLiked}
+            />
+            );
+        });
+        return <div>{getEntries}</div>;
+    };
+
+    ChatLog.propTypes = {
+        entries: PropTypes.arrayOf(PropTypes.shape({
+            sender: PropTypes.string.isRequired,
+            id: PropTypes.number.isRequired,
+            body: PropTypes.string.isRequired,
+            liked: PropTypes.bool.isRequired,
+            timeStamp: PropTypes.string.isRequired
+        })),
+        onLiked: PropTypes.func.isRequired,
+    };
+
+export default ChatLog;

src/components/ChatLog.test.js

@@ -1,49 +1,54 @@
-import React from "react";
-import "@testing-library/jest-dom/extend-expect";
-import ChatLog from "./ChatLog";
-import { render, screen } from "@testing-library/react";
+import React from 'react';
+import '@testing-library/jest-dom/extend-expect';
+import ChatLog from './ChatLog';
+import { render, screen } from '@testing-library/react';
 
 const LOG = [
   {
-    sender: "Vladimir",
-    body: "why are you arguing with me",
-    timeStamp: "2018-05-29T22:49:06+00:00",
+    sender: 'Vladimir',
+    body: 'why are you arguing with me',
+    timeStamp: '2018-05-29T22:49:06+00:00',
+    id: 1
   },
   {
-    sender: "Estragon",
-    body: "Because you are wrong.",
-    timeStamp: "2018-05-29T22:49:33+00:00",
+    sender: 'Estragon',
+    body: 'Because you are wrong.',
+    timeStamp: '2018-05-29T22:49:33+00:00',
+    id: 2
   },
   {
-    sender: "Vladimir",
-    body: "because I am what",
-    timeStamp: "2018-05-29T22:50:22+00:00",
+    sender: 'Vladimir',
+    body: 'because I am what',
+    timeStamp: '2018-05-29T22:50:22+00:00',
+    id: 3
   },
   {
-    sender: "Estragon",
-    body: "A robot.",
-    timeStamp: "2018-05-29T22:52:21+00:00",
+    sender: 'Estragon',
+    body: 'A robot.',
+    timeStamp: '2018-05-29T22:52:21+00:00',
+    id: 4
   },
   {
-    sender: "Vladimir",
-    body: "Notabot",
-    timeStamp: "2019-07-23T22:52:21+00:00",
+    sender: 'Vladimir',
+    body: 'Notabot',
+    timeStamp: '2019-07-23T22:52:21+00:00',
+    id: 5
   },
 ];
 
-describe("Wave 02: ChatLog", () => {
+describe('Wave 02: ChatLog', () => {
   beforeEach(() => {
     render(<ChatLog entries={LOG} />);
   });
 
-  test("renders without crashing and shows all the names", () => {
+  test('renders without crashing and shows all the names', () => {
     [
       {
-        name: "Vladimir",
+        name: 'Vladimir',
         numChats: 3,
       },
       {
-        name: "Estragon",
+        name: 'Estragon',
         numChats: 2,
       },
     ].forEach((person) => {
@@ -56,7 +61,7 @@ describe("Wave 02: ChatLog", () => {
     });
   });
 
-  test("renders an empty list without crashing", () => {
+  test('renders an empty list without crashing', () => {
     const element = render(<ChatLog entries={[]} />);
     expect(element).not.toBeNull();
   });