start of messaging

lib/chat_page.dart

@@ -0,0 +1,99 @@
+import 'package:flutter/material.dart';
+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:firebase_auth/firebase_auth.dart';
+
+class ChatPage extends StatefulWidget {
+  final String otherUserId;
+  final String otherUserName;
+
+  const ChatPage(
+      {super.key, required this.otherUserId, required this.otherUserName});
+
+  @override
+  State<ChatPage> createState() => _ChatPageState();
+}
+
+class _ChatPageState extends State<ChatPage> {
+  final TextEditingController _controller = TextEditingController();
+  final currentUser = FirebaseAuth.instance.currentUser;
+
+  Stream<QuerySnapshot> getMessagesStream() {
+    return FirebaseFirestore.instance
+        .collection('messages')
+        .where('chatId',
+            isEqualTo: _getChatId(currentUser!.uid, widget.otherUserId))
+        .orderBy('timestamp')
+        .snapshots();
+  }
+
+  String _getChatId(String uid1, String uid2) {
+    return uid1.hashCode <= uid2.hashCode ? '$uid1\_$uid2' : '$uid2\_$uid1';
+  }
+
+  void sendMessage() async {
+    final text = _controller.text.trim();
+    if (text.isEmpty) return;
+
+    final chatId = _getChatId(currentUser!.uid, widget.otherUserId);
+
+    await FirebaseFirestore.instance.collection('messages').add({
+      'chatId': chatId,
+      'senderId': currentUser!.uid,
+      'receiverId': widget.otherUserId,
+      'text': text,
+      'timestamp': DateTime.now().toUtc().toIso8601String(),
+    });
+
+    _controller.clear();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text("Chat with ${widget.otherUserName}")),
+      body: Column(
+        children: [
+          Expanded(
+            child: StreamBuilder<QuerySnapshot>(
+              stream: getMessagesStream(),
+              builder: (context, snapshot) {
+                if (!snapshot.hasData)
+                  return Center(child: CircularProgressIndicator());
+
+                final messages = snapshot.data!.docs;
+
+                return ListView(
+                  children: messages.map((doc) {
+                    final data = doc.data() as Map<String, dynamic>;
+                    final isMine = data['senderId'] == currentUser!.uid;
+                    return ListTile(
+                      title: Align(
+                        alignment: isMine
+                            ? Alignment.centerRight
+                            : Alignment.centerLeft,
+                        child: Container(
+                          padding: EdgeInsets.all(10),
+                          color: isMine ? Colors.blue[100] : Colors.grey[300],
+                          child: Text(data['text']),
+                        ),
+                      ),
+                    );
+                  }).toList(),
+                );
+              },
+            ),
+          ),
+          Padding(
+            padding: const EdgeInsets.symmetric(horizontal: 8),
+            child: Row(
+              children: [
+                Expanded(child: TextField(controller: _controller)),
+                IconButton(onPressed: sendMessage, icon: Icon(Icons.send)),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/main.dart

@@ -7,64 +7,68 @@ void main() {
 }
 
 class Root extends StatelessWidget {
-	const Root({ super.key });
-  
+  const Root({super.key});
+
   @override
   Widget build(BuildContext ctx) {
-		return MaterialApp(
-      theme: ThemeData(
-        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
-        useMaterial3: true,
-      ),
-      home: App()
-    );
-	}
+    return MaterialApp(
+        theme: ThemeData(
+          colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
+          useMaterial3: true,
+        ),
+        home: App());
+  }
 }
+
 class App extends StatefulWidget {
-	const App({ super.key });
-	
-	@override
-	State<App> createState() => AppState();
+  const App({super.key});
+
+  @override
+  State<App> createState() => AppState();
 }
+
 class AppState extends State<App> {
-	int pageIdx = 2;
-	List<Widget Function()> pageBuilders = [
-		() => Center(child: Text("Settings Placeholder")),
-    () => ProfileView(Profile("My Profile", DateTime.now(), "My Bio", ["My1", "My2", "My3"])),
+  int pageIdx = 2;
+  List<Widget Function()> pageBuilders = [
+    () => Center(child: Text("Settings Placeholder")),
+    () => ProfileView(
+        Profile("My Profile", DateTime.now(), "My Bio", ["My1", "My2", "My3"])),
     //() => ProfileView(Profile("Example Profile", DateTime.now(), "Example Bio", ["Ex1", "Ex2", "Ex3", "Ex4"])),
     () => ExplorePage([
-			Profile("Example Profile #2", DateTime.now(), "Example Bio #2", ["Interest #1", "Interest #2", "Interest #3", "Interest #4"]),
-			Profile("Example Profile #1", DateTime.now(), "Example Bio", ["Ex1", "Ex2", "Ex3", "Ex4"]),
-		]),
-		() => MatchesPage([
-			Profile("Match 1", DateTime.now(), "Example Bio", ["I1", "I2"]),
-			Profile("Match 2", DateTime.now(), "Example Bio", ["I1", "I2"]),
-			Profile("Match 3", DateTime.now(), "Example Bio", ["I1", "I2"]),
-		])
+          Profile("Example Profile #2", DateTime.now(), "Example Bio #2",
+              ["Interest #1", "Interest #2", "Interest #3", "Interest #4"]),
+          Profile("Example Profile #1", DateTime.now(), "Example Bio",
+              ["Ex1", "Ex2", "Ex3", "Ex4"]),
+        ]),
+    () => MatchesPage([
+          Profile("Match 1", DateTime.now(), "Example Bio", ["I1", "I2"]),
+          Profile("Match 2", DateTime.now(), "Example Bio", ["I1", "I2"]),
+          Profile("Match 3", DateTime.now(), "Example Bio", ["I1", "I2"]),
+        ])
   ];
-  
+
   @override
-	Widget build(BuildContext context) {
-		return Scaffold(
+  Widget build(BuildContext context) {
+    return Scaffold(
       body: pageBuilders[pageIdx](),
-			bottomNavigationBar: BottomNavigationBar(
+      bottomNavigationBar: BottomNavigationBar(
         // for unknown reasons the navbar becomes (mostly) invisible when in "shifting" mode
         type: BottomNavigationBarType.fixed,
-				currentIndex: pageIdx,
-				onTap: (int idx) {
-					setState(() {
-						pageIdx = idx;
-					});
-				},
-				items: [
-					BottomNavigationBarItem(icon: Icon(Icons.settings), label: "Settings"),
+        currentIndex: pageIdx,
+        onTap: (int idx) {
+          setState(() {
+            pageIdx = idx;
+          });
+        },
+        items: [
+          BottomNavigationBarItem(
+              icon: Icon(Icons.settings), label: "Settings"),
           BottomNavigationBarItem(icon: Icon(Icons.person), label: "Profile"),
-					BottomNavigationBarItem(icon: Icon(Icons.star), label: "Explore"),
-					BottomNavigationBarItem(icon: Icon(Icons.heart_broken), label: "Matches"),
-				],
-			),
-		);
-	}
+          BottomNavigationBarItem(icon: Icon(Icons.star), label: "Explore"),
+          BottomNavigationBarItem(
+              icon: Icon(Icons.heart_broken), label: "Matches"),
+        ],
+      ),
+    );
+  }
 }
-
-

lib/matches.dart

@@ -1,41 +1,42 @@
-
 import 'package:flutter/material.dart';
-import 'profile.dart';
-
-
-/*class Match {
-	Profile profile;
-	//Profile? profile; // We may not have their profile from the server yet
-}*/
-
+import 'profile.dart'; // Assuming Profile is already defined elsewhere
+import 'chat_page.dart'; // <- We will create this next
 
 class MatchesPage extends StatelessWidget {
-
-	final List<Profile> profiles;
-	MatchesPage(this.profiles, { super.key });
-
-	@override
-	Widget build(BuildContext context) {
-
-		Widget profileEntryBuilder(Profile profile) {
-			return ListTile(
-				title: Text(profile.name),
-				subtitle: Text("[latest message...]"),
-				leading: SizedBox.fromSize(
-					size: Size(40.0, 40.0),
-					child: Placeholder()
-				),
-				trailing: Icon(Icons.arrow_right)
-			);
-		}
-
-		return ListView.separated(
-			itemCount: profiles.length,
-			itemBuilder: (context, i) => profileEntryBuilder(profiles[i]),
-			separatorBuilder: (context, i) => Divider(color: Colors.blueGrey[700], thickness: 2, indent: 10, endIndent: 10)
-		);
-	}
+  final List<Profile> profiles;
+  const MatchesPage(this.profiles, {super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    Widget profileEntryBuilder(Profile profile) {
+      return ListTile(
+        title: Text(profile.name),
+        subtitle: Text("[latest message...]"),
+        leading: SizedBox.fromSize(
+          size: const Size(40.0, 40.0),
+          child: const Placeholder(),
+        ),
+        trailing: const Icon(Icons.arrow_right),
+        onTap: () {
+          Navigator.push(
+            context,
+            MaterialPageRoute(
+              builder: (context) => ChatPage(profile: profile),
+            ),
+          );
+        },
+      );
+    }
+
+    return ListView.separated(
+      itemCount: profiles.length,
+      itemBuilder: (context, i) => profileEntryBuilder(profiles[i]),
+      separatorBuilder: (context, i) => Divider(
+        color: Colors.blueGrey[700],
+        thickness: 2,
+        indent: 10,
+        endIndent: 10,
+      ),
+    );
+  }
 }
-
-
-

lib/message.dart

@@ -0,0 +1,31 @@
+class Message {
+  final String senderId;
+  final String receiverId;
+  final String text;
+  final DateTime timestamp;
+
+  Message({
+    required this.senderId,
+    required this.receiverId,
+    required this.text,
+    required this.timestamp,
+  });
+
+  Map<String, dynamic> toMap() {
+    return {
+      'senderId': senderId,
+      'receiverId': receiverId,
+      'text': text,
+      'timestamp': timestamp.toIso8601String(),
+    };
+  }
+
+  factory Message.fromMap(Map<String, dynamic> map) {
+    return Message(
+      senderId: map['senderId'],
+      receiverId: map['receiverId'],
+      text: map['text'],
+      timestamp: DateTime.parse(map['timestamp']),
+    );
+  }
+}

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -5,10 +5,12 @@
 import FlutterMacOS
 import Foundation
 
+import cloud_firestore
 import firebase_auth
 import firebase_core
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  FLTFirebaseFirestorePlugin.register(with: registry.registrar(forPlugin: "FLTFirebaseFirestorePlugin"))
   FLTFirebaseAuthPlugin.register(with: registry.registrar(forPlugin: "FLTFirebaseAuthPlugin"))
   FLTFirebaseCorePlugin.register(with: registry.registrar(forPlugin: "FLTFirebaseCorePlugin"))
 }

pubspec.yaml

@@ -37,6 +37,7 @@ dependencies:
   firebase_auth: ^5.5.1
   logger: ^2.5.0
   firebase_core: ^3.12.1
+  cloud_firestore: ^5.6.7
 
 dev_dependencies:
   flutter_test:

windows/flutter/generated_plugin_registrant.cc

@@ -6,10 +6,13 @@
 
 #include "generated_plugin_registrant.h"
 
+#include <cloud_firestore/cloud_firestore_plugin_c_api.h>
 #include <firebase_auth/firebase_auth_plugin_c_api.h>
 #include <firebase_core/firebase_core_plugin_c_api.h>
 
 void RegisterPlugins(flutter::PluginRegistry* registry) {
+  CloudFirestorePluginCApiRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("CloudFirestorePluginCApi"));
   FirebaseAuthPluginCApiRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("FirebaseAuthPluginCApi"));
   FirebaseCorePluginCApiRegisterWithRegistrar(

windows/flutter/generated_plugins.cmake

@@ -3,6 +3,7 @@
 #
 
 list(APPEND FLUTTER_PLUGIN_LIST
+  cloud_firestore
   firebase_auth
   firebase_core
 )