420 lines
12 KiB
Dart
420 lines
12 KiB
Dart
import 'dart:async';
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import 'dart:math' as math;
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import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:infinite_scroll_pagination/infinite_scroll_pagination.dart';
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import 'package:solian/exts.dart';
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import 'package:solian/models/call.dart';
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import 'package:solian/models/channel.dart';
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import 'package:solian/models/message.dart';
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import 'package:solian/models/packet.dart';
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import 'package:solian/models/pagination.dart';
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import 'package:solian/providers/auth.dart';
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import 'package:solian/providers/chat.dart';
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import 'package:solian/providers/content/call.dart';
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import 'package:solian/providers/content/channel.dart';
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import 'package:solian/router.dart';
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import 'package:solian/services.dart';
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import 'package:solian/theme.dart';
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import 'package:solian/widgets/chat/call/call_prejoin.dart';
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import 'package:solian/widgets/chat/call/chat_call_action.dart';
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import 'package:solian/widgets/chat/chat_message.dart';
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import 'package:solian/widgets/chat/chat_message_action.dart';
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import 'package:solian/widgets/chat/chat_message_input.dart';
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import 'package:solian/widgets/current_state_action.dart';
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class ChannelChatScreen extends StatefulWidget {
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final String alias;
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final String realm;
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const ChannelChatScreen({
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super.key,
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required this.alias,
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this.realm = 'global',
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});
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@override
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State<ChannelChatScreen> createState() => _ChannelChatScreenState();
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}
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class _ChannelChatScreenState extends State<ChannelChatScreen> {
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bool _isBusy = false;
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int? _accountId;
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String? _overrideAlias;
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Channel? _channel;
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Call? _ongoingCall;
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StreamSubscription<NetworkPackage>? _subscription;
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final PagingController<int, Message> _pagingController =
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PagingController(firstPageKey: 0);
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getProfile() async {
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final AuthProvider auth = Get.find();
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final prof = await auth.getProfile();
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_accountId = prof.body['id'];
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}
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getChannel({String? overrideAlias}) async {
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final ChannelProvider provider = Get.find();
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setState(() => _isBusy = true);
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if (overrideAlias != null) {
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_overrideAlias = overrideAlias;
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}
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try {
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final resp = await provider.getChannel(
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_overrideAlias ?? widget.alias,
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realm: widget.realm,
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);
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setState(() => _channel = Channel.fromJson(resp.body));
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} catch (e) {
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context.showErrorDialog(e);
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}
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setState(() => _isBusy = false);
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}
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getOngoingCall() async {
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final ChannelProvider provider = Get.find();
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setState(() => _isBusy = true);
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try {
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final resp = await provider.getChannelOngoingCall(
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_overrideAlias ?? widget.alias,
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realm: widget.realm,
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);
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if (resp != null) {
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setState(() => _ongoingCall = Call.fromJson(resp.body));
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}
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} catch (e) {
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context.showErrorDialog(e);
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}
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setState(() => _isBusy = false);
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}
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Future<void> getMessages(int pageKey) async {
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final AuthProvider auth = Get.find();
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if (!await auth.isAuthorized) return;
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final client = GetConnect(maxAuthRetries: 3);
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client.httpClient.baseUrl = ServiceFinder.services['messaging'];
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client.httpClient.addAuthenticator(auth.requestAuthenticator);
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final resp = await client.get(
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'/api/channels/${widget.realm}/${widget.alias}/messages?take=10&offset=$pageKey');
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if (resp.statusCode == 200) {
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final PaginationResult result = PaginationResult.fromJson(resp.body);
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final parsed = result.data?.map((e) => Message.fromJson(e)).toList();
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if (parsed != null && parsed.length >= 10) {
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_pagingController.appendPage(parsed, pageKey + parsed.length);
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} else if (parsed != null) {
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_pagingController.appendLastPage(parsed);
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}
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} else if (resp.statusCode == 403) {
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_pagingController.appendLastPage([]);
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} else {
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_pagingController.error = resp.bodyString;
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}
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}
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void listenMessages() {
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final ChatProvider provider = Get.find();
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_subscription = provider.stream.stream.listen((event) {
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switch (event.method) {
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case 'messages.new':
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final payload = Message.fromJson(event.payload!);
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if (payload.channelId == _channel?.id) {
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final idx = _pagingController.itemList
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?.indexWhere((e) => e.uuid == payload.uuid);
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if ((idx ?? -1) >= 0) {
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_pagingController.itemList?[idx!] = payload;
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} else {
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_pagingController.itemList?.insert(0, payload);
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}
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}
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break;
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case 'messages.update':
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final payload = Message.fromJson(event.payload!);
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if (payload.channelId == _channel?.id) {
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final idx = _pagingController.itemList
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?.indexWhere((x) => x.uuid == payload.uuid);
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if (idx != null) {
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_pagingController.itemList?[idx] = payload;
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}
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}
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break;
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case 'messages.burnt':
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final payload = Message.fromJson(event.payload!);
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if (payload.channelId == _channel?.id) {
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final idx = _pagingController.itemList
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?.indexWhere((x) => x.uuid != payload.uuid);
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if (idx != null) {
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_pagingController.itemList?.removeAt(idx - 1);
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}
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}
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break;
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case 'calls.new':
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final payload = Call.fromJson(event.payload!);
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_ongoingCall = payload;
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break;
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case 'calls.end':
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_ongoingCall = null;
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break;
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}
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setState(() {});
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});
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}
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bool checkMessageMergeable(Message? a, Message? b) {
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if (a?.replyTo != null) return false;
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if (a == null || b == null) return false;
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if (a.sender.account.id != b.sender.account.id) return false;
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return a.createdAt.difference(b.createdAt).inMinutes <= 3;
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}
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void showCallPrejoin() {
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showModalBottomSheet(
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useRootNavigator: true,
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context: context,
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builder: (context) => ChatCallPrejoinPopup(
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ongoingCall: _ongoingCall!,
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channel: _channel!,
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),
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);
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}
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Message? _messageToReplying;
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Message? _messageToEditing;
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Widget buildHistory(context, item, index) {
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bool isMerged = false, hasMerged = false;
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if (index > 0) {
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hasMerged = checkMessageMergeable(
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_pagingController.itemList?[index - 1],
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item,
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);
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}
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if (index + 1 < (_pagingController.itemList?.length ?? 0)) {
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isMerged = checkMessageMergeable(
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item,
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_pagingController.itemList?[index + 1],
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);
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}
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Widget content;
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if (item.replyTo != null) {
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content = Column(
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children: [
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ChatMessage(
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key: Key('m${item.replyTo.uuid}'),
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item: item.replyTo,
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isReply: true,
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).paddingOnly(left: 24, right: 4, bottom: 2),
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ChatMessage(
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key: Key('m${item.uuid}'),
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item: item,
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isMerged: isMerged,
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),
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],
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);
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} else {
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content = ChatMessage(
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key: Key('m${item.uuid}'),
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item: item,
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isMerged: isMerged,
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);
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}
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return InkWell(
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child: Container(
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child: content.paddingOnly(
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top: !isMerged ? 8 : 0,
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bottom: !hasMerged ? 8 : 0,
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),
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),
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onLongPress: () {
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showModalBottomSheet(
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useRootNavigator: true,
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context: context,
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builder: (context) => ChatMessageAction(
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channel: _channel!,
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realm: _channel!.realm,
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item: item,
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onEdit: () {
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setState(() => _messageToEditing = item);
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},
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onReply: () {
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setState(() => _messageToReplying = item);
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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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@override
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void initState() {
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super.initState();
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getProfile();
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getChannel().then((_) {
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listenMessages();
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_pagingController.addPageRequestListener(getMessages);
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});
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getOngoingCall();
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}
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@override
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Widget build(BuildContext context) {
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if (_isBusy || _channel == null) {
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return const Center(
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child: CircularProgressIndicator(),
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);
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}
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String title = _channel?.name ?? 'loading'.tr;
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String? placeholder;
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if (_channel?.type == 1) {
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final otherside = _channel!.members!
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.where((e) => e.account.externalId != _accountId)
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.first;
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title = otherside.account.nick;
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placeholder = 'messageInputPlaceholder'.trParams(
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{'channel': '@${otherside.account.name}'},
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);
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}
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final ChatCallProvider call = Get.find();
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return Scaffold(
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appBar: AppBar(
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title: Text(title),
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centerTitle: false,
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actions: [
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const BackgroundStateWidget(),
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Builder(builder: (context) {
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if (_isBusy) return const SizedBox();
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return ChatCallButton(
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realm: _channel!.realm,
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channel: _channel!,
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ongoingCall: _ongoingCall,
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);
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}),
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IconButton(
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icon: const Icon(Icons.more_vert),
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onPressed: () {
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AppRouter.instance
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.pushNamed(
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'channelDetail',
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pathParameters: {'alias': widget.alias},
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queryParameters: {'realm': widget.realm},
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extra: _channel,
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)
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.then((value) {
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if (value == false) AppRouter.instance.pop();
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if (value != null) {
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final resp = Channel.fromJson(value as Map<String, dynamic>);
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getChannel(overrideAlias: resp.alias);
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}
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});
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},
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),
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SizedBox(
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width: SolianTheme.isLargeScreen(context) ? 8 : 16,
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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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Column(
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children: [
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Expanded(
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child: PagedListView<int, Message>(
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reverse: true,
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pagingController: _pagingController,
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builderDelegate: PagedChildBuilderDelegate<Message>(
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itemBuilder: buildHistory,
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noItemsFoundIndicatorBuilder: (_) => Container(),
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),
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).paddingOnly(bottom: 64),
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),
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],
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),
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Positioned(
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bottom: math.max(MediaQuery.of(context).padding.bottom, 16),
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left: 0,
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right: 0,
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child: ChatMessageInput(
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edit: _messageToEditing,
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reply: _messageToReplying,
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realm: widget.realm,
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placeholder: placeholder,
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channel: _channel!,
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onSent: (Message item) {
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setState(() {
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_pagingController.itemList?.insert(0, item);
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});
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},
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onReset: () {
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setState(() {
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_messageToReplying = null;
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_messageToEditing = null;
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});
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},
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),
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),
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if (_ongoingCall != null)
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Positioned(
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top: 0,
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left: 0,
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right: 0,
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child: MaterialBanner(
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padding: const EdgeInsets.only(left: 16, top: 4, bottom: 4),
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leading: const Icon(Icons.call_received),
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backgroundColor: Theme.of(context).colorScheme.surfaceContainer,
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dividerColor: Colors.transparent,
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content: Text('callOngoing'.tr),
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actions: [
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Obx(() {
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if (call.current.value == null) {
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return TextButton(
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onPressed: showCallPrejoin,
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child: Text('callJoin'.tr),
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);
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} else if (call.channel.value?.id == _channel?.id) {
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return TextButton(
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onPressed: () => call.gotoScreen(context),
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child: Text('callResume'.tr),
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);
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} else {
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return TextButton(
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onPressed: null,
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child: Text('callJoin'.tr),
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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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),
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);
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}
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@override
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void dispose() {
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_subscription?.cancel();
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super.dispose();
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}
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}
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