From 6265861f369d26f7260e1a30e212e589d99025ef Mon Sep 17 00:00:00 2001
From: Esther Kang <estherkang.j@gmail.com>
Date: Sun, 15 Jun 2025 14:18:39 -0700
Subject: [PATCH 1/5] renders one chat entry successfully

---
 src/App.jsx                  |  3 +++
 src/components/ChatEntry.jsx | 13 +++++++++----
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/App.jsx b/src/App.jsx
index 14a7f684d..3c5b98818 100644
--- a/src/App.jsx
+++ b/src/App.jsx
@@ -1,4 +1,6 @@
 import './App.css';
+import ChatEntry from './components/ChatEntry';
+import DATA from './data/messages.json';
 
 const App = () => {
   return (
@@ -9,6 +11,7 @@ const App = () => {
       <main>
         {/* Wave 01: Render one ChatEntry component
         Wave 02: Render ChatLog component */}
+        <div><ChatEntry sender={DATA[0].sender} body={DATA[0].body} timeStamp={DATA[0].timeStamp}/></div>
       </main>
     </div>
   );
diff --git a/src/components/ChatEntry.jsx b/src/components/ChatEntry.jsx
index 15c56f96b..c4c3824b8 100644
--- a/src/components/ChatEntry.jsx
+++ b/src/components/ChatEntry.jsx
@@ -1,12 +1,14 @@
 import './ChatEntry.css';
+import PropTypes from 'prop-types';
+import TimeStamp from './TimeStamp';
 
-const ChatEntry = () => {
+const ChatEntry = ({sender, body, timeStamp}) => {
   return (
     <div className="chat-entry local">
-      <h2 className="entry-name">Replace with name of sender</h2>
+      <h2 className="entry-name">{sender}</h2>
       <section className="entry-bubble">
-        <p>Replace with body of ChatEntry</p>
-        <p className="entry-time">Replace with TimeStamp component</p>
+        <p>{body}</p>
+        <p className="entry-time"><TimeStamp time={timeStamp}/></p>
         <button className="like">🤍</button>
       </section>
     </div>
@@ -15,6 +17,9 @@ const ChatEntry = () => {
 
 ChatEntry.propTypes = {
   // Fill with correct proptypes
+  sender: PropTypes.string.isRequired,
+  body: PropTypes.string.isRequired,
+  timeStamp: PropTypes.string.isRequired,
 };
 
 export default ChatEntry;

From 2126f69aef59fd826359097517cd451b522b8f7b Mon Sep 17 00:00:00 2001
From: Esther Kang <estherkang.j@gmail.com>
Date: Sun, 15 Jun 2025 15:56:49 -0700
Subject: [PATCH 2/5] renders all chat data as entries in a chat log

---
 src/App.jsx                |  4 ++--
 src/components/ChatLog.jsx | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+), 2 deletions(-)
 create mode 100644 src/components/ChatLog.jsx

diff --git a/src/App.jsx b/src/App.jsx
index 3c5b98818..93a1f21b3 100644
--- a/src/App.jsx
+++ b/src/App.jsx
@@ -1,5 +1,5 @@
 import './App.css';
-import ChatEntry from './components/ChatEntry';
+import ChatLog from './components/ChatLog';
 import DATA from './data/messages.json';
 
 const App = () => {
@@ -11,7 +11,7 @@ const App = () => {
       <main>
         {/* Wave 01: Render one ChatEntry component
         Wave 02: Render ChatLog component */}
-        <div><ChatEntry sender={DATA[0].sender} body={DATA[0].body} timeStamp={DATA[0].timeStamp}/></div>
+        <div><ChatLog chatData={DATA}/></div>
       </main>
     </div>
   );
diff --git a/src/components/ChatLog.jsx b/src/components/ChatLog.jsx
new file mode 100644
index 000000000..e1b7e362f
--- /dev/null
+++ b/src/components/ChatLog.jsx
@@ -0,0 +1,33 @@
+import './ChatLog.css';
+import PropTypes from 'prop-types';
+import ChatEntry from './ChatEntry';
+
+const ChatLog = (props) => {
+  const chatEntryComponents = props.chatData.map((chat) => {
+    return (
+      <ChatEntry
+        key={chat.id}
+        sender={chat.sender}
+        body={chat.body}
+        timeStamp={chat.timeStamp}
+      />
+    );
+  });
+  return (
+    <div className="chat-log">
+      {chatEntryComponents}
+    </div>
+  );
+};
+
+ChatLog.propTypes = {
+  chatData: PropTypes.arrayOf(PropTypes.shape({
+    id: PropTypes.number.isRequired,
+    sender: PropTypes.string.isRequired,
+    body: PropTypes.string.isRequired,
+    timeStamp: PropTypes.string.isRequired,
+    liked: PropTypes.bool.isRequired
+  })).isRequired,
+};
+
+export default ChatLog;

From bef93059ae3e2684c00f91c032e1dbcae1d5dd74 Mon Sep 17 00:00:00 2001
From: Esther Kang <estherkang.j@gmail.com>
Date: Sun, 15 Jun 2025 16:00:47 -0700
Subject: [PATCH 3/5] fixes name for data to 'entries' according to tests

---
 src/App.jsx                | 2 +-
 src/components/ChatLog.jsx | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/App.jsx b/src/App.jsx
index 93a1f21b3..12d85c9c1 100644
--- a/src/App.jsx
+++ b/src/App.jsx
@@ -11,7 +11,7 @@ const App = () => {
       <main>
         {/* Wave 01: Render one ChatEntry component
         Wave 02: Render ChatLog component */}
-        <div><ChatLog chatData={DATA}/></div>
+        <div><ChatLog entries={DATA}/></div>
       </main>
     </div>
   );
diff --git a/src/components/ChatLog.jsx b/src/components/ChatLog.jsx
index e1b7e362f..710d4b7e1 100644
--- a/src/components/ChatLog.jsx
+++ b/src/components/ChatLog.jsx
@@ -3,7 +3,7 @@ import PropTypes from 'prop-types';
 import ChatEntry from './ChatEntry';
 
 const ChatLog = (props) => {
-  const chatEntryComponents = props.chatData.map((chat) => {
+  const chatEntryComponents = props.entries.map((chat) => {
     return (
       <ChatEntry
         key={chat.id}
@@ -21,7 +21,7 @@ const ChatLog = (props) => {
 };
 
 ChatLog.propTypes = {
-  chatData: PropTypes.arrayOf(PropTypes.shape({
+  entries: PropTypes.arrayOf(PropTypes.shape({
     id: PropTypes.number.isRequired,
     sender: PropTypes.string.isRequired,
     body: PropTypes.string.isRequired,

From bec9d4e4dfbbd481a30738007d822872e18b2064 Mon Sep 17 00:00:00 2001
From: Esther Kang <estherkang.j@gmail.com>
Date: Mon, 16 Jun 2025 07:25:52 -0700
Subject: [PATCH 4/5] implements liking and unliking messages

---
 src/App.jsx                  | 33 +++++++++++++++++++++++++++++++--
 src/components/ChatEntry.jsx |  9 +++++++--
 src/components/ChatLog.jsx   | 14 +++++++++-----
 3 files changed, 47 insertions(+), 9 deletions(-)

diff --git a/src/App.jsx b/src/App.jsx
index 12d85c9c1..a4a4b74cc 100644
--- a/src/App.jsx
+++ b/src/App.jsx
@@ -1,17 +1,46 @@
 import './App.css';
 import ChatLog from './components/ChatLog';
 import DATA from './data/messages.json';
+import { useState } from 'react';
+
+const calculateLikedCount = (entries) => {
+  let likedCount = 0;
+  for (const entry of entries) {
+    if (entry.liked) {
+      likedCount++;
+    }
+  }
+  return likedCount;
+};
 
 const App = () => {
+  const [entries, setEntries] = useState(DATA);
+  const likedCount = calculateLikedCount(entries);
+
+  const likeEntry = (id) => {
+    setEntries((entries) => {
+      return entries.map((entry) => {
+        if (entry.id === id) {
+          return {...entry, liked: !entry.liked};
+        } else {
+          return entry;
+        }
+      });
+    });
+  };
+
   return (
     <div id="App">
       <header>
-        <h1>Application title</h1>
+        <h1>Chat Between Vladimir and Estragon</h1>
+        <section>
+          <h2 className="widget" id="heartWidget">{likedCount} ❤️s</h2>
+        </section>
       </header>
       <main>
         {/* Wave 01: Render one ChatEntry component
         Wave 02: Render ChatLog component */}
-        <div><ChatLog entries={DATA}/></div>
+        <ChatLog entries={entries} onLikeEntry={likeEntry}/>
       </main>
     </div>
   );
diff --git a/src/components/ChatEntry.jsx b/src/components/ChatEntry.jsx
index c4c3824b8..76dae80f9 100644
--- a/src/components/ChatEntry.jsx
+++ b/src/components/ChatEntry.jsx
@@ -2,14 +2,16 @@ import './ChatEntry.css';
 import PropTypes from 'prop-types';
 import TimeStamp from './TimeStamp';
 
-const ChatEntry = ({sender, body, timeStamp}) => {
+const ChatEntry = ({id, sender, body, timeStamp, liked, onLikeEntry}) => {
+  const emoji = liked ? '❤️' : '🤍';
+
   return (
     <div className="chat-entry local">
       <h2 className="entry-name">{sender}</h2>
       <section className="entry-bubble">
         <p>{body}</p>
         <p className="entry-time"><TimeStamp time={timeStamp}/></p>
-        <button className="like">🤍</button>
+        <button className="like" onClick={() => onLikeEntry(id)}>{emoji}</button>
       </section>
     </div>
   );
@@ -17,9 +19,12 @@ const ChatEntry = ({sender, body, timeStamp}) => {
 
 ChatEntry.propTypes = {
   // Fill with correct proptypes
+  id: PropTypes.number.isRequired,
   sender: PropTypes.string.isRequired,
   body: PropTypes.string.isRequired,
   timeStamp: PropTypes.string.isRequired,
+  liked: PropTypes.bool.isRequired,
+  onLikeEntry: PropTypes.func.isRequired,
 };
 
 export default ChatEntry;
diff --git a/src/components/ChatLog.jsx b/src/components/ChatLog.jsx
index 710d4b7e1..8c385f868 100644
--- a/src/components/ChatLog.jsx
+++ b/src/components/ChatLog.jsx
@@ -3,13 +3,16 @@ import PropTypes from 'prop-types';
 import ChatEntry from './ChatEntry';
 
 const ChatLog = (props) => {
-  const chatEntryComponents = props.entries.map((chat) => {
+  const chatEntryComponents = props.entries.map((entry) => {
     return (
       <ChatEntry
-        key={chat.id}
-        sender={chat.sender}
-        body={chat.body}
-        timeStamp={chat.timeStamp}
+        key={entry.id}
+        id={entry.id}
+        sender={entry.sender}
+        body={entry.body}
+        timeStamp={entry.timeStamp}
+        liked={entry.liked}
+        onLikeEntry={props.onLikeEntry}
       />
     );
   });
@@ -28,6 +31,7 @@ ChatLog.propTypes = {
     timeStamp: PropTypes.string.isRequired,
     liked: PropTypes.bool.isRequired
   })).isRequired,
+  onLikeEntry: PropTypes.func.isRequired,
 };
 
 export default ChatLog;

From 12327ad615f0e8ffdb8e2fcad131cd0345e2b9b0 Mon Sep 17 00:00:00 2001
From: Esther Kang <estherkang.j@gmail.com>
Date: Mon, 16 Jun 2025 08:32:43 -0700
Subject: [PATCH 5/5] implements chat entries being on opposite sides depending
 on sender

---
 src/components/ChatEntry.jsx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/components/ChatEntry.jsx b/src/components/ChatEntry.jsx
index 76dae80f9..c1eeacb1b 100644
--- a/src/components/ChatEntry.jsx
+++ b/src/components/ChatEntry.jsx
@@ -4,9 +4,10 @@ import TimeStamp from './TimeStamp';
 
 const ChatEntry = ({id, sender, body, timeStamp, liked, onLikeEntry}) => {
   const emoji = liked ? '❤️' : '🤍';
+  const entrySender = sender === 'Vladimir' ? 'local' : 'remote';
 
   return (
-    <div className="chat-entry local">
+    <div className={`chat-entry ${entrySender}`}>
       <h2 className="entry-name">{sender}</h2>
       <section className="entry-bubble">
         <p>{body}</p>