705 lines
26 KiB
Dart
705 lines
26 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:flutter_riverpod/legacy.dart';
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import 'package:get/get.dart';
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import 'package:get/get_core/src/get_main.dart';
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import 'package:taxglide/consts/app_asstes.dart';
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import 'package:taxglide/consts/app_style.dart';
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import 'package:taxglide/controller/api_contoller.dart';
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import 'package:taxglide/model/chat_model.dart';
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import 'package:taxglide/view/Mahi_chat/chat_profile_screen.dart';
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import 'package:taxglide/view/Mahi_chat/file_images_screen.dart';
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import 'package:taxglide/view/Mahi_chat/webscoket.dart';
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// ⭐ Provider to hold the tagged message
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final taggedMessageProvider = StateProvider<MessageModel?>((ref) => null);
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// ⭐ Global key map to track message positions (if you want from outside)
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final messageKeysProvider = StateProvider<Map<int, GlobalKey>>((ref) => {});
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class CompletedLiveChatScreen extends ConsumerStatefulWidget {
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final int chatid;
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final String? fileid;
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const CompletedLiveChatScreen({
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super.key,
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required this.chatid,
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required this.fileid,
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});
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@override
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ConsumerState<CompletedLiveChatScreen> createState() =>
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_CompletedLiveChatScreenState();
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}
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class _CompletedLiveChatScreenState
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extends ConsumerState<CompletedLiveChatScreen>
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with AutomaticKeepAliveClientMixin, WidgetsBindingObserver {
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bool get wantKeepAlive => true;
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final ScrollController scrollController = ScrollController();
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final ChatWebSocketService _wsService = ChatWebSocketService();
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bool showScrollButton = false;
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bool userIsReading = false;
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bool _isInitialLoad = true;
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bool _isPaginationLoading = false;
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bool _hasNewMessage = false;
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// For reply scroll - FIXED: Use unique key per message
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final Map<String, GlobalKey> _messageKeys = {};
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// ⭐⭐⭐ Key variables for smooth pagination
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final double _paginationTriggerOffset = 300; // Start loading 300px before top
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@override
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void initState() {
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super.initState();
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WidgetsBinding.instance.addObserver(this);
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_initializeWebSocket();
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scrollController.addListener(_handleScroll);
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}
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// ⭐⭐⭐ Enhanced scroll handler with early pagination trigger
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void _handleScroll() {
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if (!scrollController.hasClients) return;
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double position = scrollController.position.pixels;
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double bottom = scrollController.position.maxScrollExtent;
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double top = scrollController.position.minScrollExtent;
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// ⭐⭐⭐ EARLY PAGINATION: Load before reaching exact top
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if (position <= top + _paginationTriggerOffset && !_isPaginationLoading) {
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_triggerPagination();
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}
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// Show scroll to bottom button
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if (position < bottom - 50) {
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if (!userIsReading) {
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setState(() {
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userIsReading = true;
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showScrollButton = true;
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});
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}
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} else {
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if (userIsReading) {
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setState(() {
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userIsReading = false;
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showScrollButton = false;
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});
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}
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}
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}
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// ⭐⭐⭐ Smooth pagination with scroll position preservation (NO JUMP TO BOTTOM)
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Future<void> _triggerPagination() async {
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final notifier = ref.read(chatMessagesProvider(widget.chatid).notifier);
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if (!notifier.hasNextPage) return;
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if (_isPaginationLoading) return;
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if (!scrollController.hasClients) return;
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setState(() {
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_isPaginationLoading = true;
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// userIsReading remains true while scrolling old messages
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});
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// Save current scroll metrics BEFORE loading more messages
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final double beforeMaxExtent = scrollController.position.maxScrollExtent;
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final double currentOffset = scrollController.position.pixels;
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try {
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await notifier.loadMessages(); // This should prepend older messages
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// Restore scroll position after new messages loaded
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!mounted || !scrollController.hasClients) return;
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final double afterMaxExtent = scrollController.position.maxScrollExtent;
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final double diff = afterMaxExtent - beforeMaxExtent;
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// Keep user at same visual message position
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final double newOffset = currentOffset + diff;
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scrollController.jumpTo(
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newOffset.clamp(
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scrollController.position.minScrollExtent,
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scrollController.position.maxScrollExtent,
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),
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);
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if (mounted) {
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setState(() {
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_isPaginationLoading = false;
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});
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}
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});
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} catch (e) {
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debugPrint("❌ Pagination error: $e");
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if (mounted) {
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setState(() {
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_isPaginationLoading = false;
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});
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}
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}
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}
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@override
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void didChangeAppLifecycleState(AppLifecycleState state) {
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super.didChangeAppLifecycleState(state);
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debugPrint("📱 App Lifecycle State: $state");
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if (state == AppLifecycleState.resumed) {
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debugPrint("🔄 App resumed - checking for new messages");
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if (_hasNewMessage) {
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_silentRefresh();
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_hasNewMessage = false;
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}
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}
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}
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Future<void> _silentRefresh() async {
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try {
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debugPrint("🔄 Starting silent refresh...");
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await ref.read(chatMessagesProvider(widget.chatid).notifier).refresh();
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debugPrint("✅ Silent refresh completed");
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// Only auto-scroll to bottom on new messages if user is NOT reading old ones
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if (!userIsReading && mounted) {
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (scrollController.hasClients) {
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scrollController.animateTo(
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scrollController.position.maxScrollExtent,
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duration: const Duration(milliseconds: 300),
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curve: Curves.easeOut,
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);
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}
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});
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}
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} catch (e) {
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debugPrint("❌ Error during silent refresh: $e");
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}
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}
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Future<void> _initializeWebSocket() async {
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try {
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_wsService.onMessageReceived = (Map<String, dynamic> message) async {
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debugPrint("📨 WebSocket message received: $message");
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try {
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final event = message['event'] as String?;
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if (event == 'message.sent' ||
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event == 'message.received' ||
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event == 'message.read' ||
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event == 'message.delivered') {
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debugPrint("🔔 Message status/new message event: $event");
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if (WidgetsBinding.instance.lifecycleState ==
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AppLifecycleState.resumed) {
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debugPrint("✅ Screen active - refreshing now");
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await _silentRefresh();
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} else {
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debugPrint("⏳ Screen not active - will refresh on resume");
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_hasNewMessage = true;
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}
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}
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} catch (e) {
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debugPrint("❌ Error handling WebSocket message: $e");
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}
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};
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_wsService.onConnected = () {
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debugPrint("✅ WebSocket Connected");
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};
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_wsService.onDisconnected = () {
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debugPrint("🔌 WebSocket Disconnected");
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};
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_wsService.onError = (error) {
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debugPrint("❌ WebSocket Error: $error");
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text("Connection error: $error"),
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backgroundColor: Colors.red,
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duration: const Duration(seconds: 2),
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),
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);
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}
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};
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await _wsService.connect(chatId: widget.chatid.toString());
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} catch (e) {
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debugPrint("❌ Error initializing WebSocket: $e");
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}
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}
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@override
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void dispose() {
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WidgetsBinding.instance.removeObserver(this);
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_wsService.disconnect();
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scrollController.dispose();
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super.dispose();
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}
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void scrollToBottom({bool animated = false}) {
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if (!scrollController.hasClients) return;
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setState(() {
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_isPaginationLoading = false;
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userIsReading = false;
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});
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!scrollController.hasClients) return;
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if (animated) {
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scrollController
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.animateTo(
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scrollController.position.maxScrollExtent,
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duration: const Duration(milliseconds: 400),
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curve: Curves.easeOutCubic,
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)
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.then((_) {
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Future.delayed(const Duration(milliseconds: 50), () {
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if (scrollController.hasClients && mounted) {
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scrollController.jumpTo(
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scrollController.position.maxScrollExtent,
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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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scrollController.jumpTo(scrollController.position.maxScrollExtent);
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Future.delayed(const Duration(milliseconds: 10), () {
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if (scrollController.hasClients && mounted) {
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scrollController.jumpTo(scrollController.position.maxScrollExtent);
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}
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});
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}
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});
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}
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// ⭐ FIXED: Use unique string key instead of int
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void scrollToMessage(String messageKey) {
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final key = _messageKeys[messageKey];
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if (key != null && key.currentContext != null) {
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Scrollable.ensureVisible(
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key.currentContext!,
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duration: const Duration(milliseconds: 500),
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curve: Curves.easeInOut,
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alignment: 0.3,
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);
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}
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}
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// ⭐ FIXED: Generate unique string key for each message
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GlobalKey _getKeyForMessage(String messageKey) {
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if (!_messageKeys.containsKey(messageKey)) {
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_messageKeys[messageKey] = GlobalKey();
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}
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return _messageKeys[messageKey]!;
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}
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// ⭐ FIXED: Generate unique key string from message
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String _getMessageKeyString(MessageModel msg, int index) {
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// Use combination of ID, index, and document count for uniqueness
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final id = msg.id;
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final docCount = msg.uploadedDocuments.length;
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final createdAt = msg.createdAt ?? '';
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return 'msg_${id}_${index}_${docCount}_$createdAt';
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}
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String formatMessageDate(DateTime date) {
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final now = DateTime.now();
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final today = DateTime(now.year, now.month, now.day);
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final msgDay = DateTime(date.year, date.month, date.day);
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if (msgDay == today) return "Today";
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if (msgDay == today.subtract(const Duration(days: 1))) return "Yesterday";
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return "${date.day}-${date.month}-${date.year}";
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}
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String formatTime(DateTime time) {
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final hour = time.hour % 12 == 0 ? 12 : time.hour % 12;
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final minute = time.minute.toString().padLeft(2, '0');
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final period = time.hour >= 12 ? "PM" : "AM";
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return "$hour:$minute $period";
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}
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Widget buildTick(MessageModel message) {
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// ⭐ Status 0/1
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final isRead = message.isRead;
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final isDelivered = message.isDelivered;
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if (isRead == 1) {
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return const Icon(Icons.done_all, size: 16, color: Colors.blue);
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} else if (isDelivered == 1) {
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return const Icon(Icons.done_all, size: 16, color: Colors.grey);
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} else {
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return const Icon(Icons.check, size: 16, color: Colors.grey);
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}
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}
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@override
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Widget build(BuildContext context) {
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super.build(context);
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final chatAsync = ref.watch(chatMessagesProvider(widget.chatid));
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final taggedMessage = ref.watch(taggedMessageProvider);
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return Scaffold(
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appBar: AppBar(
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title: Text(
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(widget.fileid != null &&
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widget.fileid.toString().isNotEmpty &&
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widget.fileid.toString() != "0")
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? 'File ID : ${widget.fileid.toString()}'
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: "Live Chat",
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style: AppTextStyles.semiBold.copyWith(
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fontSize: 16,
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color: Colors.black,
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),
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),
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backgroundColor: Colors.white,
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elevation: 1,
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foregroundColor: Colors.black,
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centerTitle: true,
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actions: [
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Padding(
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padding: const EdgeInsets.only(right: 12), // ✅ Right end spacing
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child: GestureDetector(
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onTap: () {
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Get.to(ChatProfileScreen(chatid: widget.chatid));
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},
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child: Container(
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width: 37.446807861328125,
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height: 40,
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decoration: BoxDecoration(
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color: const Color(0xFFFAFAFA),
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borderRadius: BorderRadius.circular(6.81),
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border: Border.all(
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color: const Color(0xFF1E780C),
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width: 0.85,
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),
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),
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child: const Icon(Icons.person, color: Color(0xFF1E780C)),
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),
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),
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),
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],
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),
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body: Stack(
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children: [
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Container(
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decoration: const BoxDecoration(
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image: DecorationImage(
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image: AssetImage(AppAssets.backgroundimages),
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fit: BoxFit.cover,
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),
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),
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),
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Column(
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children: [
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Expanded(
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child: chatAsync.when(
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loading: () => const Center(child: SizedBox.shrink()),
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error: (e, _) => Center(child: Text(e.toString())),
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data: (messages) {
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// ✅ Only first load scrolls to bottom, NOT during pagination / scroll up
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if (_isInitialLoad && !_isPaginationLoading) {
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (scrollController.hasClients && mounted) {
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scrollController.jumpTo(
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scrollController.position.maxScrollExtent,
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);
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}
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});
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_isInitialLoad = false;
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}
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return Stack(
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children: [
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ListView.builder(
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controller: scrollController,
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physics: const ClampingScrollPhysics(),
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padding: const EdgeInsets.only(
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left: 15,
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right: 15,
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top: 15,
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bottom: 15,
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),
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itemCount: messages.length,
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itemBuilder: (context, index) {
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final msg = messages[index];
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final msgDate = DateTime.parse(msg.createdAt!);
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final showDateHeader =
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index == 0 ||
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formatMessageDate(
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DateTime.parse(
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messages[index - 1].createdAt!,
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),
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) !=
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formatMessageDate(msgDate);
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// ⭐ FIXED: Generate unique key string
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final messageKeyString = _getMessageKeyString(
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msg,
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index,
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);
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return Column(
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key: _getKeyForMessage(messageKeyString),
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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if (showDateHeader)
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Padding(
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padding: const EdgeInsets.symmetric(
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vertical: 10,
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),
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child: Center(
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child: Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 12,
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vertical: 5,
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),
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decoration: BoxDecoration(
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color: Colors.black.withOpacity(0.06),
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borderRadius: BorderRadius.circular(
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12,
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),
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),
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child: Text(
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formatMessageDate(msgDate),
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style: const TextStyle(
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fontSize: 13,
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fontWeight: FontWeight.w600,
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),
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),
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),
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),
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),
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SwipeableMessageBubble(
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message: msg,
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msgDate: msgDate,
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formatTime: formatTime,
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buildTick: buildTick,
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onSwipe: () {
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ref
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.read(
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taggedMessageProvider.notifier,
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)
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.state =
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msg;
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},
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onParentTagTap: (tagId) {
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if (tagId != null) {
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// ⭐ FIXED: Find the message key string for the tagId
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final tagIndex = messages.indexWhere(
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(m) => m.id == tagId,
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);
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if (tagIndex != -1) {
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final taggedMsg = messages[tagIndex];
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final tagKeyString =
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_getMessageKeyString(
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taggedMsg,
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tagIndex,
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);
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scrollToMessage(tagKeyString);
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}
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}
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},
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// ⭐ FIXED: Use messageKeyString as ValueKey
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key: ValueKey(messageKeyString),
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),
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],
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);
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},
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),
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// ⭐⭐⭐ Subtle loading indicator at top
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if (_isPaginationLoading)
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Positioned(
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top: 5,
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left: 0,
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right: 0,
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child: Center(
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child: Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 12,
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vertical: 6,
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),
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decoration: BoxDecoration(
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color: Colors.white.withOpacity(0.9),
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borderRadius: BorderRadius.circular(20),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.1),
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blurRadius: 4,
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),
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],
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: const [
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SizedBox(
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width: 14,
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height: 14,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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),
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),
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SizedBox(width: 8),
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Text(
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"Loading...",
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style: TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.w500,
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),
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),
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],
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|
),
|
|
),
|
|
),
|
|
),
|
|
],
|
|
);
|
|
},
|
|
),
|
|
),
|
|
if (taggedMessage != null)
|
|
GestureDetector(
|
|
onTap: () {
|
|
if (taggedMessage != null) {
|
|
// ⭐ FIXED: Need to find the message in the list to get proper key
|
|
final chatAsync = ref.read(
|
|
chatMessagesProvider(widget.chatid),
|
|
);
|
|
chatAsync.whenData((messages) {
|
|
final tagIndex = messages.indexWhere(
|
|
(m) => m.id == taggedMessage.id,
|
|
);
|
|
if (tagIndex != -1) {
|
|
final tagKeyString = _getMessageKeyString(
|
|
taggedMessage,
|
|
tagIndex,
|
|
);
|
|
scrollToMessage(tagKeyString);
|
|
}
|
|
});
|
|
}
|
|
},
|
|
child: Container(
|
|
padding: const EdgeInsets.symmetric(
|
|
horizontal: 15,
|
|
vertical: 8,
|
|
),
|
|
decoration: BoxDecoration(
|
|
color: Colors.grey[200],
|
|
border: Border(top: BorderSide(color: Colors.grey[300]!)),
|
|
),
|
|
child: Row(
|
|
children: [
|
|
Container(
|
|
width: 4,
|
|
height: 50,
|
|
decoration: BoxDecoration(
|
|
color: const Color(0xFF630A73),
|
|
borderRadius: BorderRadius.circular(2),
|
|
),
|
|
),
|
|
const SizedBox(width: 10),
|
|
Expanded(
|
|
child: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Text(
|
|
taggedMessage.user?.name ?? "Unknown",
|
|
style: const TextStyle(
|
|
fontWeight: FontWeight.w600,
|
|
fontSize: 13,
|
|
color: Color(0xFF630A73),
|
|
),
|
|
),
|
|
const SizedBox(height: 2),
|
|
if (taggedMessage.type == "file" &&
|
|
taggedMessage.fileName != null)
|
|
Row(
|
|
children: [
|
|
Icon(
|
|
Icons.attach_file,
|
|
size: 14,
|
|
color: Colors.grey[600],
|
|
),
|
|
const SizedBox(width: 4),
|
|
Expanded(
|
|
child: Text(
|
|
taggedMessage.fileName!,
|
|
maxLines: 1,
|
|
overflow: TextOverflow.ellipsis,
|
|
style: TextStyle(
|
|
fontSize: 13,
|
|
color: Colors.grey[700],
|
|
),
|
|
),
|
|
),
|
|
],
|
|
)
|
|
else
|
|
Text(
|
|
taggedMessage.message,
|
|
maxLines: 2,
|
|
overflow: TextOverflow.ellipsis,
|
|
style: TextStyle(
|
|
fontSize: 13,
|
|
color: Colors.grey[700],
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
IconButton(
|
|
icon: const Icon(Icons.close, size: 20),
|
|
padding: EdgeInsets.zero,
|
|
onPressed: () {
|
|
ref.read(taggedMessageProvider.notifier).state =
|
|
null;
|
|
},
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
if (showScrollButton)
|
|
Positioned(
|
|
bottom: 150,
|
|
right: 20,
|
|
child: FloatingActionButton(
|
|
heroTag: "scrollBtn",
|
|
backgroundColor: Colors.green,
|
|
mini: true,
|
|
onPressed: () {
|
|
scrollToBottom(animated: true);
|
|
},
|
|
child: const Icon(Icons.arrow_downward, color: Colors.white),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|