update package structure and add package tile
This commit is contained in:
696
Frontend/lib/mih_packages/mzansi_ai/package_tools/ai_chat.dart
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696
Frontend/lib/mih_packages/mzansi_ai/package_tools/ai_chat.dart
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@@ -0,0 +1,696 @@
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import 'dart:async';
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import 'dart:convert';
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import 'package:Mzansi_Innovation_Hub/main.dart';
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import 'package:Mzansi_Innovation_Hub/mih_components/mih_inputs_and_buttons/mih_dropdown_input.dart';
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import 'package:Mzansi_Innovation_Hub/mih_components/mih_inputs_and_buttons/mih_text_input.dart';
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import 'package:Mzansi_Innovation_Hub/mih_components/mih_package/mih-app_tool_body.dart';
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import 'package:Mzansi_Innovation_Hub/mih_components/mih_package/mih_app_window.dart';
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import 'package:Mzansi_Innovation_Hub/mih_components/mih_pop_up_messages/mih_loading_circle.dart';
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import 'package:Mzansi_Innovation_Hub/mih_env/env.dart';
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import 'package:Mzansi_Innovation_Hub/mih_objects/app_user.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_chat_ui/flutter_chat_ui.dart';
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import 'package:flutter_chat_types/flutter_chat_types.dart' as types;
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import 'package:flutter/services.dart' show rootBundle;
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import 'package:flutter_tts/flutter_tts.dart';
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import 'package:ollama_dart/ollama_dart.dart' as ollama;
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import 'package:uuid/uuid.dart';
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class AiChat extends StatefulWidget {
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final AppUser signedInUser;
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const AiChat({
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super.key,
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required this.signedInUser,
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});
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@override
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State<AiChat> createState() => _AiChatState();
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}
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class _AiChatState extends State<AiChat> {
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final TextEditingController _modelController = TextEditingController();
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final TextEditingController _fontSizeController = TextEditingController();
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final TextEditingController _ttsVoiceController = TextEditingController();
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final ValueNotifier<bool> _showModelOptions = ValueNotifier(false);
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FlutterTts _flutterTts = FlutterTts();
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final ValueNotifier<String> _ttsVoiceName = ValueNotifier("");
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// bool _ttsOn = false;
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String? textStream;
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List<Map> _voices = [];
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List<String> _voicesString = [];
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List<types.Message> _messages = [];
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late types.User _user;
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late types.User _mihAI;
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String systemPromt =
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"You are a helpful and friendly AI assistant. You are running on a system called 'MIH' which was created by 'Mzansi Innovation Hub' a South African based company. The name we have given you is 'Mzansi Ai'. Please keep your thinking to a few paragraphs and your answer to one short paragraph.";
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bool _aiThinking = false;
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final client = ollama.OllamaClient(
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baseUrl: "${AppEnviroment.baseAiUrl}/api",
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);
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List<ollama.Message> _chatHistory = [];
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double _chatFrontSize = 15;
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void _addMessage(types.Message message) {
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setState(() {
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_messages.insert(0, message);
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});
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}
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void _loadMessages() async {
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final response = await rootBundle.loadString('assets/messages.json');
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final messages = (jsonDecode(response) as List)
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.map((e) => types.Message.fromJson(e as Map<String, dynamic>))
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.toList();
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setState(() {
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_messages = messages;
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});
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}
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void _handleSendPressed(types.PartialText message) {
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final textMessage = types.TextMessage(
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author: _user,
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createdAt: DateTime.now().millisecondsSinceEpoch,
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id: const Uuid().v4(),
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text: message.text,
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);
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//Add user prompt to history
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setState(() {
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_chatHistory.add(
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ollama.Message(
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role: ollama.MessageRole.user,
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content: message.text,
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),
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);
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});
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_addMessage(textMessage);
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_handleMessageBack(message.text);
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}
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void _handleMessageBack(String userMessage) async {
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showDialog(
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context: context,
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builder: (context) {
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return const Mihloadingcircle();
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},
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);
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Stream<String> aiChatStream =
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_generateChatCompletionWithHistoryStream(userMessage, client);
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Navigator.of(context).pop();
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showDialog(
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context: context,
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barrierDismissible: false,
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builder: (context) {
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return responseWindow(aiChatStream);
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},
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);
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}
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Widget responseWindow(
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Stream<String> aiChatStream,
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) {
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return StreamBuilder(
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stream: aiChatStream,
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builder: (context, snapshot) {
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if (snapshot.hasData) {
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textStream = snapshot.requireData;
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// print("Text: $textStream");
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// _speakText(textStream!);
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return MihAppWindow(
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fullscreen: false,
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windowTitle: 'Mzansi AI Thoughts',
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windowTools: [
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Visibility(
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visible: _aiThinking == false,
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child: Padding(
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padding: const EdgeInsets.all(5.0),
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child: Container(
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//color: MzanziInnovationHub.of(context)!.theme.successColor(),
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decoration: BoxDecoration(
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color:
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MzanziInnovationHub.of(context)!.theme.successColor(),
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borderRadius: const BorderRadius.all(
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Radius.circular(100),
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),
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),
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child: IconButton(
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color:
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MzanziInnovationHub.of(context)!.theme.primaryColor(),
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onPressed: () async {
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print("Start TTS now");
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_speakText(snapshot.requireData);
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},
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icon: const Icon(Icons.volume_up),
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),
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),
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),
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),
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Visibility(
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visible: _aiThinking == true,
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child: Padding(
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padding: const EdgeInsets.all(5.0),
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child: Container(
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// color: MzanziInnovationHub.of(context)!.theme.errorColor(),
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decoration: BoxDecoration(
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color:
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MzanziInnovationHub.of(context)!.theme.errorColor(),
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borderRadius: const BorderRadius.all(
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Radius.circular(100),
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),
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),
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child: IconButton(
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color:
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MzanziInnovationHub.of(context)!.theme.primaryColor(),
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onPressed: () {
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//print("Start TTS now");
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_flutterTts.stop();
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},
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icon: const Icon(Icons.volume_off),
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),
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),
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),
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),
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],
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onWindowTapClose: () {
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_captureAIResponse(snapshot.requireData);
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_flutterTts.stop();
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Navigator.of(context).pop();
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},
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windowBody: [
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Stack(
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children: [
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Text(
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snapshot.requireData,
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textAlign: TextAlign.left,
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style: TextStyle(
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color: MzanziInnovationHub.of(context)!
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.theme
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.secondaryColor(),
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fontSize: _chatFrontSize,
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fontWeight: FontWeight.bold,
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),
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),
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Positioned(
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bottom: 0,
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right: 0,
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child: Visibility(
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visible: _aiThinking == false,
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child: IconButton.filled(
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iconSize: 25,
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autofocus: true,
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onPressed: () {
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_captureAIResponse(snapshot.requireData);
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_flutterTts.stop();
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Navigator.of(context).pop();
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},
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focusColor: MzanziInnovationHub.of(context)!
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.theme
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.successColor(),
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icon: Icon(
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Icons.check,
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color: MzanziInnovationHub.of(context)!
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.theme
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.primaryColor(),
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),
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),
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// MIHButton(
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// onTap: () {
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// _captureAIResponse(snapshot.requireData);
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// Navigator.of(context).pop();
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// },
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// buttonText: "Continue",
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// buttonColor: MzanziInnovationHub.of(context)!
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// .theme
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// .successColor(),
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// textColor: MzanziInnovationHub.of(context)!
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// .theme
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// .primaryColor(),
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// ),
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),
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),
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],
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),
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],
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);
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} else {
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return MihAppWindow(
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fullscreen: false,
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windowTitle: 'Mzansi AI Thoughts',
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windowTools: [],
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onWindowTapClose: () {
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Navigator.of(context).pop();
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},
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windowBody: const [
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Mihloadingcircle(),
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],
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);
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}
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},
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);
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}
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void _captureAIResponse(String responseMessage) {
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types.TextMessage textMessage;
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setState(() {
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_chatHistory.add(
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ollama.Message(
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role: ollama.MessageRole.assistant,
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content: responseMessage,
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),
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);
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});
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textMessage = types.TextMessage(
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author: _mihAI,
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createdAt: DateTime.now().millisecondsSinceEpoch,
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id: const Uuid().v4(),
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text: responseMessage
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.replaceAll("<think>\n\n", "**Thinking:**\n")
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.replaceAll("<think>\n", "**Thinking:**\n")
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.replaceAll("</think>\n\n", "\n**Answer:**\n"), //message.text,
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);
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_addMessage(textMessage);
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}
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Stream<String> _generateChatCompletionWithHistoryStream(
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String userMessage,
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final ollama.OllamaClient client,
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) async* {
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final aiStream = client.generateChatCompletionStream(
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request: ollama.GenerateChatCompletionRequest(
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model: _modelController.text,
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messages: _chatHistory,
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),
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);
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String text = '';
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setState(() {
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_aiThinking = true;
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});
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await for (final res in aiStream) {
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text += (res.message.content);
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yield text;
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}
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setState(() {
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_aiThinking = false;
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});
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}
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void _resetChat() {
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setState(() {
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_messages = [];
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_chatHistory = [];
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_loadMessages();
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});
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}
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ChatTheme getChatTheme() {
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return DarkChatTheme(
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backgroundColor: MzanziInnovationHub.of(context)!.theme.primaryColor(),
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inputBackgroundColor:
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MzanziInnovationHub.of(context)!.theme.secondaryColor(),
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inputTextColor: MzanziInnovationHub.of(context)!.theme.primaryColor(),
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inputTextCursorColor:
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MzanziInnovationHub.of(context)!.theme.primaryColor(),
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primaryColor: MzanziInnovationHub.of(context)!.theme.secondaryColor(),
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secondaryColor: MzanziInnovationHub.of(context)!.theme.successColor(),
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errorColor: MzanziInnovationHub.of(context)!.theme.errorColor(),
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sentMessageBodyTextStyle: TextStyle(
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color: MzanziInnovationHub.of(context)!.theme.primaryColor(),
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fontSize: _chatFrontSize,
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fontWeight: FontWeight.w500,
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fontFamily: 'Segoe UI',
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),
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receivedMessageBodyTextStyle: TextStyle(
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color: MzanziInnovationHub.of(context)!.theme.primaryColor(),
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fontSize: _chatFrontSize,
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fontWeight: FontWeight.w500,
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fontFamily: 'Segoe UI',
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),
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emptyChatPlaceholderTextStyle: TextStyle(
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color: MzanziInnovationHub.of(context)!.theme.messageTextColor(),
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fontSize: _chatFrontSize,
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fontWeight: FontWeight.w500,
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fontFamily: 'Segoe UI',
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),
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);
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}
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Widget _getSettings() {
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return ValueListenableBuilder(
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valueListenable: _showModelOptions,
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builder: (BuildContext context, bool value, Widget? child) {
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return Visibility(
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visible: value,
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child: Padding(
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padding: const EdgeInsets.all(5.0),
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child: Align(
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alignment: Alignment.centerLeft,
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child: FittedBox(
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child: Container(
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padding: const EdgeInsets.all(10.0),
|
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decoration: BoxDecoration(
|
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color:
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MzanziInnovationHub.of(context)!.theme.primaryColor(),
|
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borderRadius: BorderRadius.circular(25.0),
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||||
border: Border.all(
|
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color: MzanziInnovationHub.of(context)!
|
||||
.theme
|
||||
.secondaryColor(),
|
||||
width: 3.0),
|
||||
),
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||||
child: Column(
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||||
mainAxisSize: MainAxisSize.min,
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||||
children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Text(
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"Settings",
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textAlign: TextAlign.center,
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||||
style: TextStyle(
|
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fontSize: 25,
|
||||
fontWeight: FontWeight.bold,
|
||||
color: MzanziInnovationHub.of(context)!
|
||||
.theme
|
||||
.secondaryColor(),
|
||||
),
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||||
),
|
||||
],
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||||
),
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const SizedBox(height: 5),
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Row(
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mainAxisAlignment: MainAxisAlignment.start,
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children: [
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SizedBox(
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width: 300,
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||||
child: MIHDropdownField(
|
||||
controller: _modelController,
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||||
hintText: "AI Model",
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||||
dropdownOptions: const [
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'gemma3:1b',
|
||||
],
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||||
required: true,
|
||||
editable: true,
|
||||
enableSearch: false,
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
const SizedBox(height: 15),
|
||||
Row(
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||||
mainAxisAlignment: MainAxisAlignment.start,
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||||
children: [
|
||||
SizedBox(
|
||||
width: 230,
|
||||
child: MIHDropdownField(
|
||||
controller: _ttsVoiceController,
|
||||
hintText: "AI Voice",
|
||||
dropdownOptions: _voicesString,
|
||||
required: true,
|
||||
editable: true,
|
||||
enableSearch: false,
|
||||
),
|
||||
),
|
||||
const SizedBox(width: 10),
|
||||
Padding(
|
||||
padding: const EdgeInsets.all(5.0),
|
||||
child: Container(
|
||||
//color: MzanziInnovationHub.of(context)!.theme.successColor(),
|
||||
decoration: BoxDecoration(
|
||||
color: MzanziInnovationHub.of(context)!
|
||||
.theme
|
||||
.successColor(),
|
||||
borderRadius: const BorderRadius.all(
|
||||
Radius.circular(100),
|
||||
),
|
||||
),
|
||||
child: IconButton(
|
||||
color: MzanziInnovationHub.of(context)!
|
||||
.theme
|
||||
.primaryColor(),
|
||||
onPressed: () {
|
||||
print("Start TTS now");
|
||||
|
||||
_speakText(
|
||||
"This is the sample of the Mzansi A.I Voice.");
|
||||
},
|
||||
icon: const Icon(Icons.volume_up),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
const SizedBox(height: 15),
|
||||
Row(
|
||||
mainAxisAlignment: MainAxisAlignment.start,
|
||||
children: [
|
||||
IconButton.filled(
|
||||
onPressed: () {
|
||||
setState(() {
|
||||
_chatFrontSize -= 1;
|
||||
_fontSizeController.text =
|
||||
_chatFrontSize.ceil().toString();
|
||||
});
|
||||
},
|
||||
icon: const Icon(
|
||||
Icons.remove,
|
||||
),
|
||||
),
|
||||
const SizedBox(width: 10),
|
||||
SizedBox(
|
||||
width: 200,
|
||||
child: MIHTextField(
|
||||
controller: _fontSizeController,
|
||||
hintText: "Chat Font Size",
|
||||
editable: false,
|
||||
required: true,
|
||||
),
|
||||
),
|
||||
const SizedBox(width: 10),
|
||||
IconButton.filled(
|
||||
onPressed: () {
|
||||
setState(() {
|
||||
_chatFrontSize += 1;
|
||||
_fontSizeController.text =
|
||||
_chatFrontSize.ceil().toString();
|
||||
});
|
||||
},
|
||||
icon: const Icon(
|
||||
Icons.add,
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
const SizedBox(height: 15),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
},
|
||||
);
|
||||
}
|
||||
|
||||
void _speakText(String text) async {
|
||||
try {
|
||||
await _flutterTts.stop(); // Stop any ongoing speech
|
||||
await _flutterTts.speak(text); // Speak the new text
|
||||
} catch (e) {
|
||||
print("TTS Error: $e");
|
||||
}
|
||||
}
|
||||
|
||||
void setTtsVoice(String voiceName) {
|
||||
_flutterTts.setVoice(
|
||||
{
|
||||
"name": voiceName,
|
||||
"locale": _voices
|
||||
.where((_voice) => _voice["name"].contains(voiceName))
|
||||
.first["locale"]
|
||||
},
|
||||
);
|
||||
_ttsVoiceController.text = voiceName;
|
||||
}
|
||||
|
||||
void voiceSelected() {
|
||||
if (_ttsVoiceController.text.isNotEmpty) {
|
||||
_ttsVoiceName.value = _ttsVoiceController.text;
|
||||
// print(
|
||||
// "======================================== Voice Set ========================================");
|
||||
setTtsVoice(_ttsVoiceController.text);
|
||||
} else {
|
||||
_ttsVoiceName.value = "";
|
||||
}
|
||||
}
|
||||
|
||||
@override
|
||||
void dispose() {
|
||||
// TODO: implement dispose
|
||||
super.dispose();
|
||||
_modelController.dispose();
|
||||
_fontSizeController.dispose();
|
||||
_ttsVoiceController.dispose();
|
||||
_ttsVoiceController.removeListener(voiceSelected);
|
||||
client.endSession();
|
||||
_flutterTts.stop();
|
||||
}
|
||||
|
||||
void initTTS() {
|
||||
_flutterTts.setVolume(0.7);
|
||||
// _flutterTts.setSpeechRate(0.6);
|
||||
// _flutterTts.setPitch(1.0);
|
||||
_flutterTts.getVoices.then(
|
||||
(data) {
|
||||
try {
|
||||
_voices = List<Map>.from(data);
|
||||
|
||||
setState(() {
|
||||
_voices = _voices
|
||||
.where(
|
||||
(_voice) => _voice["name"].toLowerCase().contains("en-us"))
|
||||
.toList();
|
||||
_voicesString =
|
||||
_voices.map((_voice) => _voice["name"] as String).toList();
|
||||
_voicesString.sort();
|
||||
// print(
|
||||
// "=================== Voices ===================\n$_voicesString");
|
||||
|
||||
setTtsVoice(_voicesString.first);
|
||||
});
|
||||
} catch (e) {
|
||||
print(e);
|
||||
}
|
||||
},
|
||||
);
|
||||
}
|
||||
|
||||
@override
|
||||
void initState() {
|
||||
super.initState();
|
||||
_user = types.User(
|
||||
firstName: widget.signedInUser.fname,
|
||||
id: widget.signedInUser.app_id, //'82091008-a484-4a89-ae75-a22bf8d6f3ac',
|
||||
);
|
||||
_mihAI = types.User(
|
||||
firstName: "Mzansi AI",
|
||||
id: const Uuid().v4(),
|
||||
);
|
||||
_modelController.text = 'gemma3:1b';
|
||||
_fontSizeController.text = _chatFrontSize.ceil().toString();
|
||||
|
||||
_chatHistory.add(
|
||||
ollama.Message(
|
||||
role: ollama.MessageRole.system,
|
||||
content: systemPromt,
|
||||
),
|
||||
);
|
||||
_loadMessages();
|
||||
initTTS();
|
||||
_ttsVoiceController.addListener(voiceSelected);
|
||||
}
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return MihAppToolBody(
|
||||
borderOn: false,
|
||||
bodyItem: Column(
|
||||
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
|
||||
mainAxisSize: MainAxisSize.max,
|
||||
children: [
|
||||
Row(
|
||||
mainAxisAlignment: MainAxisAlignment.center,
|
||||
children: [
|
||||
Expanded(
|
||||
child: Container(
|
||||
alignment: Alignment.centerLeft,
|
||||
child: Row(
|
||||
children: [
|
||||
Visibility(
|
||||
visible: _showModelOptions.value == false,
|
||||
child: IconButton(
|
||||
onPressed: () {
|
||||
if (_showModelOptions.value == true) {
|
||||
setState(() {
|
||||
_showModelOptions.value = false;
|
||||
});
|
||||
} else {
|
||||
setState(() {
|
||||
_showModelOptions.value = true;
|
||||
});
|
||||
}
|
||||
},
|
||||
icon: const Icon(Icons.settings),
|
||||
),
|
||||
),
|
||||
Visibility(
|
||||
visible: _showModelOptions.value == true,
|
||||
child: IconButton.filled(
|
||||
onPressed: () {
|
||||
if (_showModelOptions.value == true) {
|
||||
setState(() {
|
||||
_showModelOptions.value = false;
|
||||
});
|
||||
} else {
|
||||
setState(() {
|
||||
_showModelOptions.value = true;
|
||||
});
|
||||
}
|
||||
},
|
||||
icon: const Icon(Icons.settings),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
Text(
|
||||
"Mzansi AI",
|
||||
textAlign: TextAlign.center,
|
||||
style: TextStyle(
|
||||
fontSize: 25,
|
||||
fontWeight: FontWeight.bold,
|
||||
color:
|
||||
MzanziInnovationHub.of(context)!.theme.secondaryColor(),
|
||||
),
|
||||
),
|
||||
Expanded(
|
||||
child: Container(
|
||||
alignment: Alignment.centerRight,
|
||||
child: IconButton(
|
||||
onPressed: () {
|
||||
_resetChat();
|
||||
},
|
||||
icon: const Icon(Icons.refresh),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
_getSettings(),
|
||||
Expanded(
|
||||
child: Chat(
|
||||
messages: _messages,
|
||||
// onAttachmentPressed: _handleAttachmentPressed,
|
||||
// onMessageTap: _handleMessageTap,
|
||||
// onPreviewDataFetched: _handlePreviewDataFetched,
|
||||
onSendPressed: _handleSendPressed,
|
||||
showUserAvatars: false,
|
||||
showUserNames: false,
|
||||
user: _user,
|
||||
theme: getChatTheme(),
|
||||
),
|
||||
)
|
||||
],
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user