enabled togglable chat history (during runtime) that uses different api endpoints.

mobile/app/lib/components/conversation_thread/chat.dart

@@ -1,9 +1,22 @@
+import 'dart:convert';
+import 'package:json_annotation/json_annotation.dart';
+
+@JsonSerializable()
 class Chat {
-  late String message;
+  final String content;
-  late bool isMe;
+  final bool role;
 
   // Most basic chat, text from server or from user.
-  Chat(this.message, this.isMe);
+  Chat(this.content, this.role);
+
+  String toJson() {
+    Map<String, dynamic> c = {
+      "content": content,
+      "role": role,
+    };
+
+    return json.encode(c);
+  }
 
   // TODO: Overload constructors to allow for multimedia.
 }

mobile/app/lib/components/conversation_thread/chat_bubble_widget.dart

@@ -9,7 +9,7 @@ class ChatBubbleWidget extends StatelessWidget{
   @override
   Widget build(BuildContext context) {
     return Row(
-      mainAxisAlignment: c.isMe ? MainAxisAlignment.end : MainAxisAlignment.start,
+      mainAxisAlignment: c.role ? MainAxisAlignment.end : MainAxisAlignment.start,
       children: [
         Container(
           padding: const EdgeInsets.all(16.0),
@@ -18,14 +18,14 @@ class ChatBubbleWidget extends StatelessWidget{
             borderRadius: BorderRadius.only(
               topLeft: const Radius.circular(12.0),
               topRight: const Radius.circular(12.0),
-              bottomLeft: c.isMe ? const Radius.circular(12.0) : const Radius
+              bottomLeft: c.role ? const Radius.circular(12.0) : const Radius
                   .circular(0.0),
-              bottomRight: c.isMe ? const Radius.circular(12.0) : const Radius
+              bottomRight: c.role ? const Radius.circular(12.0) : const Radius
                   .circular(0.0),
             ),
-            color: c.isMe ? Colors.blue[200] : Colors.grey[200],
+            color: c.role ? Colors.blue[200] : Colors.grey[200],
           ),
-          child: Text(c.message),
+          child: Text(c.content),
         ),
       ],
     );

mobile/app/lib/components/prompt_box/prompt_box_widget.dart

@@ -1,3 +1,4 @@
+import 'package:app/util/server.dart';
 import 'package:flutterflow_ui/flutterflow_ui.dart';
 import 'package:easy_debounce/easy_debounce.dart';
 import 'package:flutter/material.dart';
@@ -58,8 +59,9 @@ class _PromptBoxWidgetState extends State<PromptBoxWidget> {
               mainAxisSize: MainAxisSize.max,
               mainAxisAlignment: MainAxisAlignment.spaceAround,
               crossAxisAlignment: CrossAxisAlignment.end,
+              // TODO: Implement the context upload buttons
               children: [
-                Expanded(
+                Expanded( // TODO: File context upload
                   child: Padding(
                     padding: const EdgeInsets.all(14),
                     child: FlutterFlowIconButton(
@@ -78,7 +80,7 @@ class _PromptBoxWidgetState extends State<PromptBoxWidget> {
                     ),
                   ),
                 ),
-                Expanded(
+                Expanded( // TODO: Photo context upload
                   child: Padding(
                     padding: const EdgeInsets.all(14),
                     child: FlutterFlowIconButton(
@@ -97,7 +99,7 @@ class _PromptBoxWidgetState extends State<PromptBoxWidget> {
                     ),
                   ),
                 ),
-                Expanded(
+                Expanded( // TODO: Microphone context upload -> or STT??
                   child: Padding(
                     padding: const EdgeInsets.all(14),
                     child: FlutterFlowIconButton(
@@ -116,7 +118,7 @@ class _PromptBoxWidgetState extends State<PromptBoxWidget> {
                     ),
                   ),
                 ),
-                Expanded(
+                Expanded( // TODO: Video context upload
                   child: Padding(
                     padding: const EdgeInsets.all(14),
                     child: FlutterFlowIconButton(
@@ -135,7 +137,7 @@ class _PromptBoxWidgetState extends State<PromptBoxWidget> {
                     ),
                   ),
                 ),
-                Expanded(
+                Expanded( // TODO: Camera context upload
                   child: Padding(
                     padding: const EdgeInsets.all(14),
                     child: FlutterFlowIconButton(
@@ -173,8 +175,6 @@ class _PromptBoxWidgetState extends State<PromptBoxWidget> {
                       ),
                       autofocus: true,
                       textCapitalization: TextCapitalization.none,
-                      textInputAction: TextInputAction.go,
-                      obscureText: false,
                       decoration: InputDecoration(
                         isDense: false,
                         counterStyle: AppTheme.bodyMedium,
@@ -218,8 +218,11 @@ class _PromptBoxWidgetState extends State<PromptBoxWidget> {
                       textAlign: TextAlign.start,
                       maxLines: 5,
                       minLines: 1,
-                      validator:
+                      validator: _model.textControllerValidator.asValidator(context),
-                          _model.textControllerValidator.asValidator(context),
+                      textInputAction: TextInputAction.send, // "Send" on keyboard
+                      onFieldSubmitted: (text) {
+                        updateFromLatestInput(text); // TODO: Connect with multimedia
+                      },
                     ),
                   ),
                 ),
@@ -230,4 +233,10 @@ class _PromptBoxWidgetState extends State<PromptBoxWidget> {
       ),
     );
   }
+
+  void updateFromLatestInput(String input) {
+    Server s = Server();
+    s.setPrompt(input);
+    print(s.getResponse());
+  }
 }

mobile/app/lib/util/server.dart

@@ -16,6 +16,13 @@ class Server {
 
   // Status variables
   late bool _speechEnabled;
+  bool _historyEnabled = true;
+
+  // Context variables
+  List<Chat> chats = [
+    (Chat("This is just a test. Only reply Yes.", true)),
+    (Chat("Yes.", false)),
+  ];
 
   // Runtime variables
   String prompt = "";
@@ -31,39 +38,47 @@ class Server {
   }
 
   List<Chat> getConversationByID(conversationID) {
-    this.conversationID = conversationID;
-
     // TODO: Implement conversation IDs & retrieval from server
-    List<Chat> chats = [
+    this.conversationID = conversationID;
-      (Chat("hello world!", true)),
-      (Chat("hello to you too!", false)),
-    ];
-
     return chats;
   }
 
+  // TODO: Integrate with getConversationByID()
+  List<Map<String, String>> convertMessages() {
+    List<Map<String, String>> messageList = [];
+    for (Chat c in chats) {
+      messageList.add({
+        "role": c.role ? "user" : "assistant",
+        "content": c.content,
+      });
+    }
+
+    return messageList;
+  }
+
   // Using native on-device Speech-To-Text capability, get the server response when ready.
   Future<String> sttGetResponseWhenReady() async {
     // TODO: In case on-device STT is unavailable, use server-side STT service.
     if (!_speechEnabled) "Unable to process Speech-To-Text on-device.";
 
     setPrompt(stt.getTextWhenReady() as String);
-    constructPrompt();
     httpSendRequest();
 
     return response;
   }
 
+  Future<String> getResponseWhenReady(String p) async {
+    prompt = p;
+    httpSendRequest();
+    return response;
+  }
+
   // Arbitrary prompt, used for standard text interaction rather than STT.
   void setPrompt(String p) => prompt = p;
 
   // Get the last response or request a response from the server.
   String getResponse() {
-    if(response.isEmpty) {
-      constructPrompt();
       httpSendRequest();
-    }
-
       return response;
   }
 
@@ -72,28 +87,46 @@ class Server {
 
   // Formats the prompt in JSON.
   String constructPrompt() {
-    // Construct the JSON payload
-    final Map<String, dynamic> data = {
-      "model":
-      "llama3", // TODO: Allow for different models to be dynamically selected.
-      "prompt": prompt,
-      "stream": false // TODO: Allow for toggleable states between stream
     // TODO: Allow for additional flags, ie. continuous conversation, images, etc.
+    // TODO: Allow for toggleable states between stream
+    // TODO: Allow for different models to be dynamically selected.
+    Map<String, dynamic> data;
+
+    if(_historyEnabled) {
+      chats = [...chats, Chat(prompt, true)];
+
+      List<Map<String, String>> messageList = convertMessages();
+
+      data = {
+        "model": "llama3",
+        "messages": messageList,
+        "stream": false,
       };
+    }
+    else {
+      data = {
+        "model": "llama3",
+        "prompt": prompt,
+        "stream": false,
+      };
+    }
 
     // Encode the JSON payload
-    final String body = json.encode(data);
+    return json.encode(data);
-
-    return body;
   }
 
   // Send the HTTP request to the server.
   void httpSendRequest() async {
     String json = constructPrompt();
+    print("\n\n$json\n\n");
+
+    String endpoint = "/api/";
+    if(_historyEnabled) endpoint += "chat";
+    else endpoint += "generate";
 
     // Send the HTTP POST request
     final serverResponse = await http.post(
-      Uri.parse('$url/api/generate'),
+      Uri.parse('$url$endpoint'),
       headers: headers,
       body: json,
     );
@@ -104,46 +137,6 @@ class Server {
     } else {
       response = ('Error: ${serverResponse.statusCode}');
     }
+    chats.add(Chat(response, false));
   }
 }
-//
-//
-// // GUI components
-//         child: Column(
-//           mainAxisAlignment: MainAxisAlignment.center,
-//           children: <Widget>[
-//             Container(
-//               padding: const EdgeInsets.all(16),
-//               child: const Text(
-//                 'Recognized words:',
-//                 style: TextStyle(fontSize: 20.0),
-//               ),
-//             ),
-//             Expanded(
-//               child: Container(
-//                 padding: const EdgeInsets.all(16),
-//                 child: Text(
-//                   // If listening is active show the recognized words
-//                   _speechToText.isListening
-//                       ? prompt
-//                   // If listening isn't active but could be tell the user
-//                   // how to start it, otherwise indicate that speech
-//                   // recognition is not yet ready or not supported on
-//                   // the target device
-//                       : _speechEnabled
-//                       ? responseFromAI
-//                       : 'Speech disabled',
-//                 ),
-//               ),
-//             ),
-//           ],
-//         ),
-//       ),
-//       floatingActionButton: FloatingActionButton(
-//         onPressed:
-//         // If not yet listening for speech start, otherwise stop
-//         //sendPrompt,
-//         _speechToText.isNotListening ? _startListening : sendPrompt,
-//         tooltip: 'Listen',
-//         child: Icon(_speechToText.isNotListening ? Icons.mic_off : Icons.mic),
-//       ),