594 lines
16 KiB
Dart
594 lines
16 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:flutter_hbb/common/widgets/peers_view.dart';
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import 'package:flutter_hbb/models/model.dart';
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import 'package:flutter_hbb/models/peer_model.dart';
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import 'package:flutter_hbb/models/platform_model.dart';
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import 'package:get/get.dart';
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import 'package:bot_toast/bot_toast.dart';
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import 'package:http/http.dart' as http;
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import '../common.dart';
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final syncAbOption = 'sync-ab-with-recent-sessions';
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bool shouldSyncAb() {
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return bind.mainGetLocalOption(key: syncAbOption).isNotEmpty;
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}
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final sortAbTagsOption = 'sync-ab-tags';
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bool shouldSortTags() {
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return bind.mainGetLocalOption(key: sortAbTagsOption).isNotEmpty;
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}
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final filterAbTagOption = 'filter-ab-by-intersection';
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bool filterAbTagByIntersection() {
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return bind.mainGetLocalOption(key: filterAbTagOption).isNotEmpty;
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}
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class AbModel {
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final abLoading = false.obs;
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final pullError = "".obs;
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final pushError = "".obs;
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final tags = [].obs;
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final RxMap<String, int> tagColors = Map<String, int>.fromEntries([]).obs;
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final peers = List<Peer>.empty(growable: true).obs;
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final sortTags = shouldSortTags().obs;
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final filterByIntersection = filterAbTagByIntersection().obs;
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final retrying = false.obs;
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bool get emtpy => peers.isEmpty && tags.isEmpty;
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final selectedTags = List<String>.empty(growable: true).obs;
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var initialized = false;
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var licensedDevices = 0;
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var _syncAllFromRecent = true;
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var _syncFromRecentLock = false;
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var _timerCounter = 0;
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var _cacheLoadOnceFlag = false;
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WeakReference<FFI> parent;
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AbModel(this.parent) {
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if (desktopType == DesktopType.main) {
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Timer.periodic(Duration(milliseconds: 500), (timer) async {
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if (_timerCounter++ % 6 == 0) {
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if (!gFFI.userModel.isLogin) return;
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syncFromRecent();
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}
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});
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}
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}
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Future<void> pullAb({force = true, quiet = false}) async {
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debugPrint("pullAb, force:$force, quiet:$quiet");
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if (!gFFI.userModel.isLogin) return;
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if (abLoading.value) return;
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if (!force && initialized) return;
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if (pushError.isNotEmpty) {
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try {
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// push to retry
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await pushAb(toastIfFail: false, toastIfSucc: false);
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} catch (_) {}
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}
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if (!quiet) {
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abLoading.value = true;
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pullError.value = "";
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}
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final api = "${await bind.mainGetApiServer()}/api/ab";
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int? statusCode;
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try {
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var authHeaders = getHttpHeaders();
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authHeaders['Content-Type'] = "application/json";
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authHeaders['Accept-Encoding'] = "gzip";
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final resp = await http.get(Uri.parse(api), headers: authHeaders);
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statusCode = resp.statusCode;
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if (resp.body.toLowerCase() == "null") {
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// normal reply, emtpy ab return null
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tags.clear();
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tagColors.clear();
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peers.clear();
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} else if (resp.body.isNotEmpty) {
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Map<String, dynamic> json =
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_jsonDecodeResp(utf8.decode(resp.bodyBytes), resp.statusCode);
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if (json.containsKey('error')) {
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throw json['error'];
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} else if (json.containsKey('data')) {
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try {
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gFFI.abModel.licensedDevices = json['licensed_devices'];
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// ignore: empty_catches
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} catch (e) {}
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final data = jsonDecode(json['data']);
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if (data != null) {
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_deserialize(data);
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_saveCache(); // save on success
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}
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}
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}
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} catch (err) {
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if (!quiet) {
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pullError.value =
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'${translate('pull_ab_failed_tip')}: ${translate(err.toString())}';
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}
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} finally {
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abLoading.value = false;
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initialized = true;
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_syncAllFromRecent = true;
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_timerCounter = 0;
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if (pullError.isNotEmpty) {
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if (statusCode == 401) {
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gFFI.userModel.reset(resetOther: true);
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}
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}
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platformFFI.tryHandle({'name': LoadEvent.addressBook});
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}
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}
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void addId(String id, String alias, List<dynamic> tags) {
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if (idContainBy(id)) {
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return;
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}
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final peer = Peer.fromJson({
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'id': id,
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'alias': alias,
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'tags': tags,
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});
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_mergePeerFromGroup(peer);
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peers.add(peer);
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}
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bool isFull(bool warn) {
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final res = licensedDevices > 0 && peers.length >= licensedDevices;
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if (res && warn) {
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BotToast.showText(
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contentColor: Colors.red, text: translate("exceed_max_devices"));
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}
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return res;
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}
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void addPeer(Peer peer) {
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final index = peers.indexWhere((e) => e.id == peer.id);
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if (index >= 0) {
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merge(peer, peers[index]);
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} else {
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peers.add(peer);
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}
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}
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bool addPeers(List<Peer> ps) {
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bool allAdded = true;
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for (var p in ps) {
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if (!isFull(false)) {
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addPeer(p);
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} else {
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allAdded = false;
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}
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}
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return allAdded;
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}
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void addTag(String tag) async {
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if (tagContainBy(tag)) {
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return;
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}
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tags.add(tag);
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}
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void changeTagForPeer(String id, List<dynamic> tags) {
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final it = peers.where((element) => element.id == id);
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if (it.isEmpty) {
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return;
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}
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it.first.tags = tags;
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}
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void changeTagForPeers(List<String> ids, List<dynamic> tags) {
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peers.map((e) {
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if (ids.contains(e.id)) {
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e.tags = tags;
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}
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}).toList();
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}
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void changeAlias({required String id, required String alias}) {
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final it = peers.where((element) => element.id == id);
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if (it.isEmpty) {
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return;
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}
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it.first.alias = alias;
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}
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bool changePassword(String id, String hash) {
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final it = peers.where((element) => element.id == id);
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if (it.isNotEmpty) {
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if (it.first.hash != hash) {
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it.first.hash = hash;
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return true;
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}
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}
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return false;
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}
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Future<bool> pushAb(
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{bool toastIfFail = true,
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bool toastIfSucc = true,
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bool isRetry = false}) async {
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debugPrint(
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"pushAb: toastIfFail:$toastIfFail, toastIfSucc:$toastIfSucc, isRetry:$isRetry");
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if (!gFFI.userModel.isLogin) return false;
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pushError.value = '';
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if (isRetry) retrying.value = true;
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DateTime startTime = DateTime.now();
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bool ret = false;
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try {
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// avoid double pushes in a row
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_syncAllFromRecent = true;
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await syncFromRecent(push: false);
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//https: //stackoverflow.com/questions/68249333/flutter-getx-updating-item-in-children-list-is-not-reactive
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peers.refresh();
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final api = "${await bind.mainGetApiServer()}/api/ab";
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var authHeaders = getHttpHeaders();
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authHeaders['Content-Type'] = "application/json";
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final body = jsonEncode({"data": jsonEncode(_serialize())});
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http.Response resp;
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// support compression
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if (licensedDevices > 0 && body.length > 1024) {
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authHeaders['Content-Encoding'] = "gzip";
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resp = await http.post(Uri.parse(api),
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headers: authHeaders, body: GZipCodec().encode(utf8.encode(body)));
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} else {
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resp =
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await http.post(Uri.parse(api), headers: authHeaders, body: body);
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}
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if (resp.statusCode == 200 &&
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(resp.body.isEmpty || resp.body.toLowerCase() == 'null')) {
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ret = true;
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_saveCache();
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} else {
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Map<String, dynamic> json =
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_jsonDecodeResp(utf8.decode(resp.bodyBytes), resp.statusCode);
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if (json.containsKey('error')) {
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throw json['error'];
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} else if (resp.statusCode == 200) {
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ret = true;
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_saveCache();
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} else {
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throw 'HTTP ${resp.statusCode}';
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}
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}
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} catch (e) {
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pushError.value =
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'${translate('push_ab_failed_tip')}: ${translate(e.toString())}';
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}
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_syncAllFromRecent = true;
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if (isRetry) {
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var ms =
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(Duration(milliseconds: 200) - DateTime.now().difference(startTime))
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.inMilliseconds;
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ms = ms > 0 ? ms : 0;
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Future.delayed(Duration(milliseconds: ms), () {
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retrying.value = false;
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});
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}
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if (!ret && toastIfFail) {
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BotToast.showText(contentColor: Colors.red, text: pushError.value);
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}
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if (ret && toastIfSucc) {
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showToast(translate('Successful'));
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}
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return ret;
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}
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Peer? find(String id) {
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return peers.firstWhereOrNull((e) => e.id == id);
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}
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bool idContainBy(String id) {
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return peers.where((element) => element.id == id).isNotEmpty;
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}
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bool tagContainBy(String tag) {
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return tags.where((element) => element == tag).isNotEmpty;
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}
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void deletePeer(String id) {
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peers.removeWhere((element) => element.id == id);
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}
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void deletePeers(List<String> ids) {
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peers.removeWhere((e) => ids.contains(e.id));
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}
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void deleteTag(String tag) {
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gFFI.abModel.selectedTags.remove(tag);
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tags.removeWhere((element) => element == tag);
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tagColors.remove(tag);
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for (var peer in peers) {
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if (peer.tags.isEmpty) {
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continue;
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}
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if (peer.tags.contains(tag)) {
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((peer.tags)).remove(tag);
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}
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}
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}
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void renameTag(String oldTag, String newTag) {
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if (tags.contains(newTag)) return;
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tags.value = tags.map((e) {
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if (e == oldTag) {
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return newTag;
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} else {
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return e;
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}
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}).toList();
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selectedTags.value = selectedTags.map((e) {
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if (e == oldTag) {
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return newTag;
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} else {
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return e;
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}
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}).toList();
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for (var peer in peers) {
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peer.tags = peer.tags.map((e) {
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if (e == oldTag) {
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return newTag;
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} else {
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return e;
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}
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}).toList();
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}
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int? oldColor = tagColors[oldTag];
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if (oldColor != null) {
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tagColors.remove(oldTag);
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tagColors.addAll({newTag: oldColor});
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}
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}
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void unsetSelectedTags() {
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selectedTags.clear();
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}
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List<dynamic> getPeerTags(String id) {
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final it = peers.where((p0) => p0.id == id);
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if (it.isEmpty) {
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return [];
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} else {
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return it.first.tags;
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}
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}
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Color getTagColor(String tag) {
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int? colorValue = tagColors[tag];
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if (colorValue != null) {
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return Color(colorValue);
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}
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return str2color2(tag, existing: tagColors.values.toList());
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}
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setTagColor(String tag, Color color) {
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if (tags.contains(tag)) {
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tagColors[tag] = color.value;
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}
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}
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void merge(Peer r, Peer p) {
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p.hash = r.hash.isEmpty ? p.hash : r.hash;
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p.username = r.username.isEmpty ? p.username : r.username;
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p.hostname = r.hostname.isEmpty ? p.hostname : r.hostname;
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p.alias = p.alias.isEmpty ? r.alias : p.alias;
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p.forceAlwaysRelay = r.forceAlwaysRelay;
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p.rdpPort = r.rdpPort;
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p.rdpUsername = r.rdpUsername;
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}
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Future<void> syncFromRecent({bool push = true}) async {
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if (!_syncFromRecentLock) {
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_syncFromRecentLock = true;
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await _syncFromRecentWithoutLock(push: push);
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_syncFromRecentLock = false;
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}
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}
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Future<void> _syncFromRecentWithoutLock({bool push = true}) async {
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bool peerSyncEqual(Peer a, Peer b) {
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return a.hash == b.hash &&
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a.username == b.username &&
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a.platform == b.platform &&
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a.hostname == b.hostname &&
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a.alias == b.alias;
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}
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Future<List<Peer>> getRecentPeers() async {
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try {
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List<String> filteredPeerIDs;
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if (_syncAllFromRecent) {
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_syncAllFromRecent = false;
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filteredPeerIDs = [];
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} else {
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final new_stored_str = await bind.mainGetNewStoredPeers();
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if (new_stored_str.isEmpty) return [];
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filteredPeerIDs = (jsonDecode(new_stored_str) as List<dynamic>)
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.map((e) => e.toString())
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.toList();
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if (filteredPeerIDs.isEmpty) return [];
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}
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final loadStr = await bind.mainLoadRecentPeersForAb(
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filter: jsonEncode(filteredPeerIDs));
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if (loadStr.isEmpty) {
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return [];
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}
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List<dynamic> mapPeers = jsonDecode(loadStr);
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List<Peer> recents = List.empty(growable: true);
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for (var m in mapPeers) {
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if (m is Map<String, dynamic>) {
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recents.add(Peer.fromJson(m));
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}
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}
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return recents;
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} catch (e) {
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debugPrint('getRecentPeers:$e');
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}
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return [];
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}
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try {
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if (!shouldSyncAb()) return;
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final recents = await getRecentPeers();
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if (recents.isEmpty) return;
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bool uiChanged = false;
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bool needSync = false;
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for (var i = 0; i < recents.length; i++) {
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var r = recents[i];
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var index = peers.indexWhere((e) => e.id == r.id);
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if (index < 0) {
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if (!isFull(false)) {
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peers.add(r);
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uiChanged = true;
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needSync = true;
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}
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} else {
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Peer old = Peer.copy(peers[index]);
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merge(r, peers[index]);
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if (!peerSyncEqual(peers[index], old)) {
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needSync = true;
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}
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if (!old.equal(peers[index])) {
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uiChanged = true;
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}
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}
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}
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// Be careful with loop calls
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if (needSync && push) {
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pushAb(toastIfSucc: false, toastIfFail: false);
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} else if (uiChanged) {
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peers.refresh();
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}
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} catch (e) {
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debugPrint('syncFromRecent:$e');
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}
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}
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_saveCache() {
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try {
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var m = _serialize();
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m.addAll(<String, dynamic>{
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"access_token": bind.mainGetLocalOption(key: 'access_token'),
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});
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bind.mainSaveAb(json: jsonEncode(m));
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} catch (e) {
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debugPrint('ab save:$e');
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}
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}
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Future<void> loadCache() async {
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try {
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if (_cacheLoadOnceFlag || abLoading.value || initialized) return;
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_cacheLoadOnceFlag = true;
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final access_token = bind.mainGetLocalOption(key: 'access_token');
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if (access_token.isEmpty) return;
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final cache = await bind.mainLoadAb();
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if (abLoading.value) return;
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final data = jsonDecode(cache);
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if (data == null || data['access_token'] != access_token) return;
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_deserialize(data);
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} catch (e) {
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debugPrint("load ab cache: $e");
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}
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}
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Map<String, dynamic> _jsonDecodeResp(String body, int statusCode) {
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try {
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Map<String, dynamic> json = jsonDecode(body);
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return json;
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} catch (e) {
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final err = body.isNotEmpty && body.length < 128 ? body : e.toString();
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if (statusCode != 200) {
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throw 'HTTP $statusCode, $err';
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}
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throw err;
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}
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}
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Map<String, dynamic> _serialize() {
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final peersJsonData = peers.map((e) => e.toAbUploadJson()).toList();
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final tagColorJsonData = jsonEncode(tagColors);
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return {
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"tags": tags,
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"peers": peersJsonData,
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"tag_colors": tagColorJsonData
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};
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}
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_deserialize(dynamic data) {
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if (data == null) return;
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final oldOnlineIDs = peers.where((e) => e.online).map((e) => e.id).toList();
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tags.clear();
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tagColors.clear();
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peers.clear();
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if (data['tags'] is List) {
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tags.value = data['tags'];
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}
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if (data['peers'] is List) {
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for (final peer in data['peers']) {
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peers.add(Peer.fromJson(peer));
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}
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}
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if (isFull(false)) {
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|
peers.removeRange(licensedDevices, peers.length);
|
|
}
|
|
// restore online
|
|
peers
|
|
.where((e) => oldOnlineIDs.contains(e.id))
|
|
.map((e) => e.online = true)
|
|
.toList();
|
|
if (data['tag_colors'] is String) {
|
|
Map<String, dynamic> map = jsonDecode(data['tag_colors']);
|
|
tagColors.value = Map<String, int>.from(map);
|
|
}
|
|
// add color to tag
|
|
final tagsWithoutColor =
|
|
tags.toList().where((e) => !tagColors.containsKey(e)).toList();
|
|
for (var t in tagsWithoutColor) {
|
|
tagColors[t] = str2color2(t, existing: tagColors.values.toList()).value;
|
|
}
|
|
}
|
|
|
|
reSyncToast(Future<bool> future) {
|
|
if (!shouldSyncAb()) return;
|
|
Future.delayed(Duration.zero, () async {
|
|
final succ = await future;
|
|
if (succ) {
|
|
await Future.delayed(Duration(seconds: 2)); // success msg
|
|
BotToast.showText(
|
|
contentColor: Colors.lightBlue,
|
|
text: translate('synced_peer_readded_tip'));
|
|
}
|
|
});
|
|
}
|
|
|
|
reset() async {
|
|
pullError.value = '';
|
|
pushError.value = '';
|
|
tags.clear();
|
|
peers.clear();
|
|
await bind.mainClearAb();
|
|
}
|
|
|
|
_mergePeerFromGroup(Peer p) {
|
|
final g = gFFI.groupModel.peers.firstWhereOrNull((e) => p.id == e.id);
|
|
if (g == null) return;
|
|
if (p.username.isEmpty) {
|
|
p.username = g.username;
|
|
}
|
|
if (p.hostname.isEmpty) {
|
|
p.hostname = g.hostname;
|
|
}
|
|
if (p.platform.isEmpty) {
|
|
p.platform = g.platform;
|
|
}
|
|
}
|
|
}
|