code.grnet.gr Git - pithos-ms-client/blob - trunk/Pithos.Client.WPF/Shell/ShellViewModel.cs

   1 #region
   2 /* -----------------------------------------------------------------------
   3  * <copyright file="ShellViewModel.cs" company="GRNet">
   4  *
   5  * Copyright 2011-2012 GRNET S.A. All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or
   8  * without modification, are permitted provided that the following
   9  * conditions are met:
  10  *
  11  *   1. Redistributions of source code must retain the above
  12  *      copyright notice, this list of conditions and the following
  13  *      disclaimer.
  14  *
  15  *   2. Redistributions in binary form must reproduce the above
  16  *      copyright notice, this list of conditions and the following
  17  *      disclaimer in the documentation and/or other materials
  18  *      provided with the distribution.
  19  *
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  22  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  25  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  28  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  31  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * The views and conclusions contained in the software and
  35  * documentation are those of the authors and should not be
  36  * interpreted as representing official policies, either expressed
  37  * or implied, of GRNET S.A.
  38  * </copyright>
  39  * -----------------------------------------------------------------------
  40  */
  41 #endregion
  42 using System.Collections.Concurrent;
  43 using System.Diagnostics;
  44 using System.Diagnostics.Contracts;
  45 using System.IO;
  46 using System.Net;
  47 using System.Reflection;
  48 using System.Runtime.InteropServices;
  49 using System.ServiceModel;
  50 using System.Threading.Tasks;
  51 using System.Windows;
  52 using System.Windows.Controls.Primitives;
  53 using AppLimit.NetSparkle;
  54 using Caliburn.Micro;
  55 using Hardcodet.Wpf.TaskbarNotification;
  56 using Pithos.Client.WPF.Configuration;
  57 using Pithos.Client.WPF.FileProperties;
  58 using Pithos.Client.WPF.Preferences;
  59 using Pithos.Client.WPF.SelectiveSynch;
  60 using Pithos.Client.WPF.Services;
  61 using Pithos.Client.WPF.Shell;
  62 using Pithos.Core;
  63 using Pithos.Core.Agents;
  64 using Pithos.Interfaces;
  65 using System;
  66 using System.Collections.Generic;
  67 using System.Linq;
  68 using Pithos.Network;
  69 using StatusService = Pithos.Client.WPF.Services.StatusService;
  70
  71 namespace Pithos.Client.WPF {
  72         using System.ComponentModel.Composition;
  73
  74
  75         ///<summary>
  76         /// The "shell" of the Pithos application displays the taskbar  icon, menu and notifications.
  77         /// The shell also hosts the status service called by shell extensions to retrieve file info
  78         ///</summary>
  79         ///<remarks>
  80         /// It is a strange "shell" as its main visible element is an icon instead of a window
  81         /// The shell subscribes to the following events:
  82         /// * Notification:  Raised by components that want to notify the user. Usually displayed in a balloon
  83         /// * SelectiveSynchChanges: Notifies that the user made changes to the selective synch folders for an account. Raised by the Selective Synch dialog. Located here because the monitors are here
  84         /// * ShowFilePropertiesEvent: Raised when a shell command requests the display of the file/container properties dialog
  85         ///</remarks>
  86         //TODO: CODE SMELL Why does the shell handle the SelectiveSynchChanges?
  87     [Export(typeof(IShell)), Export(typeof(ShellViewModel))]
  88         public class ShellViewModel : Screen, IStatusNotification, IShell,
  89                 IHandle<Notification>, IHandle<SelectiveSynchChanges>, IHandle<ShowFilePropertiesEvent>
  90         {
  91
  92                 //The Status Checker provides the current synch state
  93                 //TODO: Could we remove the status checker and use events in its place?
  94                 private readonly IStatusChecker _statusChecker;
  95                 private readonly IEventAggregator _events;
  96
  97                 public PithosSettings Settings { get; private set; }
  98
  99
 100                 private readonly ConcurrentDictionary<string, PithosMonitor> _monitors = new ConcurrentDictionary<string, PithosMonitor>();
 101                 ///<summary>
 102                 /// Dictionary of account monitors, keyed by account
 103                 ///</summary>
 104                 ///<remarks>
 105                 /// One monitor class is created for each account. The Shell needs access to the monitors to execute start/stop/pause commands,
 106                 /// retrieve account and boject info
 107                 ///</remarks>
 108                 // TODO: Does the Shell REALLY need access to the monitors? Could we achieve the same results with a better design?
 109                 // TODO: The monitors should be internal to Pithos.Core, even though exposing them makes coding of the Object and Container windows easier
 110                 public ConcurrentDictionary<string, PithosMonitor> Monitors
 111                 {
 112                         get { return _monitors; }
 113                 }
 114
 115
 116                 ///<summary>
 117                 /// The status service is used by Shell extensions to retrieve file status information
 118                 ///</summary>
 119                 //TODO: CODE SMELL! This is the shell! While hosting in the shell makes executing start/stop commands easier, it is still a smell
 120                 private ServiceHost _statusService;
 121
 122                 //Logging in the Pithos client is provided by log4net
 123         private static readonly log4net.ILog Log = log4net.LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 124
 125             private readonly PollAgent _pollAgent;
 126
 127
 128             private MiniStatusViewModel _miniStatus;
 129
 130             [Import]
 131         public MiniStatusViewModel MiniStatus
 132             {
 133                 get { return _miniStatus; }
 134                 set
 135                 {
 136                     _miniStatus = value;
 137                     _miniStatus.Shell = this;
 138                     _miniStatus.Deactivated += (sender, arg) =>
 139                                                    {
 140                                                        _statusVisible = false;
 141                                                    NotifyOfPropertyChange(()=>MiniStatusCaption);
 142                                                    };
 143                 }
 144             }
 145
 146             ///<summary>
 147                 /// The Shell depends on MEF to provide implementations for windowManager, events, the status checker service and the settings
 148                 ///</summary>
 149                 ///<remarks>
 150                 /// The PithosSettings class encapsulates the app's settings to abstract their storage mechanism (App settings, a database or registry)
 151                 ///</remarks>
 152                 [ImportingConstructor]
 153                 public ShellViewModel(IWindowManager windowManager, IEventAggregator events, IStatusChecker statusChecker, PithosSettings settings,PollAgent pollAgent)
 154                 {
 155                         try
 156                         {
 157
 158                                 _windowManager = windowManager;
 159                                 //CHECK: Caliburn doesn't need explicit command construction
 160                                 //OpenPithosFolderCommand = new PithosCommand(OpenPithosFolder);
 161                                 _statusChecker = statusChecker;
 162                                 //The event subst
 163                                 _events = events;
 164                                 _events.Subscribe(this);
 165
 166                             _pollAgent = pollAgent;
 167                                 Settings = settings;
 168
 169                                 Proxy.SetFromSettings(settings);
 170
 171                 StatusMessage = Settings.Accounts.Count==0
 172                     ? "No Accounts added\r\nPlease add an account"
 173                     : "Starting";
 174
 175                                 _accounts.CollectionChanged += (sender, e) =>
 176                                                                                                    {
 177                                                                                                            NotifyOfPropertyChange(() => OpenFolderCaption);
 178                                                                                                            NotifyOfPropertyChange(() => HasAccounts);
 179                                                                                                    };
 180
 181                 SetVersionMessage();
 182                         }
 183                         catch (Exception exc)
 184                         {
 185                                 Log.Error("Error while starting the ShellViewModel",exc);
 186                                 throw;
 187                         }
 188
 189                 }
 190
 191             private void SetVersionMessage()
 192             {
 193                 Assembly assembly = Assembly.GetExecutingAssembly();
 194                 var fileVersion = FileVersionInfo.GetVersionInfo(assembly.Location);
 195                 VersionMessage = String.Format("Pithos+ {0}", fileVersion.FileVersion);
 196             }
 197
 198         public void OnStatusAction()
 199         {
 200             if (Accounts.Count==0)
 201             {
 202                 ShowPreferences("AccountTab");
 203             }
 204         }
 205             protected override void OnActivate()
 206                 {
 207                         base.OnActivate();
 208
 209             InitializeSparkle();
 210
 211                 //Must delay opening the upgrade window
 212             //to avoid Windows Messages sent by the TaskbarIcon
 213             TaskEx.Delay(5000).ContinueWith(_=>
 214                 Execute.OnUIThread(()=> _sparkle.StartLoop(true,Settings.UpdateForceCheck,Settings.UpdateCheckInterval)));
 215
 216
 217                         StartMonitoring();
 218                 }
 219
 220
 221             private void OnCheckFinished(object sender, bool updaterequired)
 222             {
 223
 224             Log.InfoFormat("Upgrade check finished. Need Upgrade: {0}", updaterequired);
 225             if (_manualUpgradeCheck)
 226             {
 227                 _manualUpgradeCheck = false;
 228                 if (!updaterequired)
 229                     //Sparkle raises events on a background thread
 230                     Execute.OnUIThread(()=>
 231                         ShowBalloonFor(new Notification{Title="Pithos+ is up to date",Message="You have the latest Pithos+ version. No update is required"}));
 232             }
 233             }
 234
 235             private void OnUpgradeDetected(object sender, UpdateDetectedEventArgs e)
 236             {
 237                 Log.InfoFormat("Update detected {0}",e.LatestVersion);
 238             }
 239
 240         public void CheckForUpgrade()
 241         {
 242             ShowBalloonFor(new Notification{Title="Checking for upgrades",Message="Contacting the server to retrieve the latest Pithos+ version."});
 243             _sparkle.StopLoop();
 244             _sparkle.updateDetected -= OnUpgradeDetected;
 245             _sparkle.checkLoopFinished -= OnCheckFinished;
 246             _sparkle.Dispose();
 247
 248             _manualUpgradeCheck = true;
 249             InitializeSparkle();
 250             _sparkle.StartLoop(true,true,Settings.UpdateCheckInterval);
 251         }
 252
 253         private void InitializeSparkle()
 254         {
 255             _sparkle = new Sparkle(Settings.UpdateUrl);
 256             _sparkle.updateDetected += OnUpgradeDetected;
 257             _sparkle.checkLoopFinished += OnCheckFinished;
 258             _sparkle.ShowDiagnosticWindow = Settings.UpdateDiagnostics;
 259         }
 260
 261             private async void StartMonitoring()
 262                 {
 263                         try
 264                         {
 265                                 var accounts = Settings.Accounts.Select(MonitorAccount);
 266                                 await TaskEx.WhenAll(accounts);
 267                                 _statusService = StatusService.Start();
 268
 269 /*
 270                                 foreach (var account in Settings.Accounts)
 271                                 {
 272                                         await MonitorAccount(account);
 273                                 }
 274 */
 275
 276                         }
 277                         catch (AggregateException exc)
 278                         {
 279                                 exc.Handle(e =>
 280                                 {
 281                                         Log.Error("Error while starting monitoring", e);
 282                                         return true;
 283                                 });
 284                                 throw;
 285                         }
 286                 }
 287
 288                 protected override void OnDeactivate(bool close)
 289                 {
 290                         base.OnDeactivate(close);
 291                         if (close)
 292                         {
 293                                 StatusService.Stop(_statusService);
 294                                 _statusService = null;
 295                         }
 296                 }
 297
 298                 public Task MonitorAccount(AccountSettings account)
 299                 {
 300                         return Task.Factory.StartNew(() =>
 301                         {
 302                                 PithosMonitor monitor;
 303                                 var accountName = account.AccountName;
 304
 305                                 if (_monitors.TryGetValue(accountName, out monitor))
 306                                 {
 307                                         //If the account is active
 308                     if (account.IsActive)
 309                     {
 310                         //The Api Key may have changed throuth the Preferences dialog
 311                         monitor.ApiKey = account.ApiKey;
 312                                                 Debug.Assert(monitor.StatusNotification == this,"An existing monitor should already have a StatusNotification service object");
 313                         monitor.RootPath = account.RootPath;
 314                         //Start the monitor. It's OK to start an already started monitor,
 315                         //it will just ignore the call
 316                         StartMonitor(monitor).Wait();
 317                     }
 318                     else
 319                     {
 320                         //If the account is inactive
 321                         //Stop and remove the monitor
 322                         RemoveMonitor(accountName);
 323                     }
 324                                         return;
 325                                 }
 326
 327
 328                                 //Create a new monitor/ Can't use MEF here, it would return a single instance for all monitors
 329                                 monitor = new PithosMonitor
 330                                                           {
 331                                                                   UserName = accountName,
 332                                                                   ApiKey = account.ApiKey,
 333                                                                   StatusNotification = this,
 334                                                                   RootPath = account.RootPath
 335                                                           };
 336                                 //PithosMonitor uses MEF so we need to resolve it
 337                                 IoC.BuildUp(monitor);
 338
 339                                 monitor.AuthenticationUrl = account.ServerUrl;
 340
 341                                 _monitors[accountName] = monitor;
 342
 343                                 if (account.IsActive)
 344                                 {
 345                                         //Don't start a monitor if it doesn't have an account and ApiKey
 346                                         if (String.IsNullOrWhiteSpace(monitor.UserName) ||
 347                                                 String.IsNullOrWhiteSpace(monitor.ApiKey))
 348                                                 return;
 349                                         StartMonitor(monitor);
 350                                 }
 351                         });
 352                 }
 353
 354
 355                 protected override void OnViewLoaded(object view)
 356                 {
 357                         UpdateStatus();
 358                         var window = (Window)view;
 359                         TaskEx.Delay(1000).ContinueWith(t => Execute.OnUIThread(window.Hide));
 360                         base.OnViewLoaded(view);
 361                 }
 362
 363
 364                 #region Status Properties
 365
 366                 private string _statusMessage;
 367                 public string StatusMessage
 368                 {
 369                         get { return _statusMessage; }
 370                         set
 371                         {
 372                                 _statusMessage = value;
 373                                 NotifyOfPropertyChange(() => StatusMessage);
 374                 NotifyOfPropertyChange(() => TooltipMessage);
 375                         }
 376                 }
 377
 378         public string VersionMessage { get; set; }
 379
 380             private string _tooltipMessage;
 381             public string TooltipMessage
 382             {
 383                 get
 384                 {
 385                     return String.Format("{0}\r\n{1}",VersionMessage,StatusMessage);
 386                 }
 387             }
 388
 389             private readonly ObservableConcurrentCollection<AccountInfo> _accounts = new ObservableConcurrentCollection<AccountInfo>();
 390                 public ObservableConcurrentCollection<AccountInfo> Accounts
 391                 {
 392                         get { return _accounts; }
 393                 }
 394
 395                 public bool HasAccounts
 396                 {
 397                         get { return _accounts.Count > 0; }
 398                 }
 399
 400
 401                 public string OpenFolderCaption
 402                 {
 403                         get
 404                         {
 405                                 return (_accounts.Count == 0)
 406                                                 ? "No Accounts Defined"
 407                                                 : "Open Pithos Folder";
 408                         }
 409                 }
 410
 411                 private string _pauseSyncCaption="Pause Synching";
 412                 public string PauseSyncCaption
 413                 {
 414                         get { return _pauseSyncCaption; }
 415                         set
 416                         {
 417                                 _pauseSyncCaption = value;
 418                                 NotifyOfPropertyChange(() => PauseSyncCaption);
 419                         }
 420                 }
 421
 422                 private readonly ObservableConcurrentCollection<FileEntry> _recentFiles = new ObservableConcurrentCollection<FileEntry>();
 423                 public ObservableConcurrentCollection<FileEntry> RecentFiles
 424                 {
 425                         get { return _recentFiles; }
 426                 }
 427
 428
 429                 private string _statusIcon="../Images/Pithos.ico";
 430                 public string StatusIcon
 431                 {
 432                         get { return _statusIcon; }
 433                         set
 434                         {
 435                                 //TODO: Ensure all status icons use the Pithos logo
 436                                 _statusIcon = value;
 437                                 NotifyOfPropertyChange(() => StatusIcon);
 438                         }
 439                 }
 440
 441                 #endregion
 442
 443                 #region Commands
 444
 445         public void ShowPreferences()
 446         {
 447             ShowPreferences(null);
 448         }
 449
 450                 public void ShowPreferences(string currentTab)
 451                 {
 452                         //Settings.Reload();
 453                     var preferences = new PreferencesViewModel(_windowManager, _events, this, Settings,currentTab);
 454                     _windowManager.ShowDialog(preferences);
 455
 456                 }
 457
 458                 public void AboutPithos()
 459                 {
 460                         var about = IoC.Get<AboutViewModel>();
 461                     about.LatestVersion=_sparkle.LatestVersion;
 462                         _windowManager.ShowWindow(about);
 463                 }
 464
 465                 public void SendFeedback()
 466                 {
 467                         var feedBack =  IoC.Get<FeedbackViewModel>();
 468                         _windowManager.ShowWindow(feedBack);
 469                 }
 470
 471                 //public PithosCommand OpenPithosFolderCommand { get; private set; }
 472
 473                 public void OpenPithosFolder()
 474                 {
 475                         var account = Settings.Accounts.FirstOrDefault(acc => acc.IsActive);
 476                         if (account == null)
 477                                 return;
 478                         Process.Start(account.RootPath);
 479                 }
 480
 481                 public void OpenPithosFolder(AccountInfo account)
 482                 {
 483                         Process.Start(account.AccountPath);
 484                 }
 485
 486
 487
 488                 public void GoToSite()
 489                 {
 490                         var site = Properties.Settings.Default.ProductionServer;
 491                         Process.Start(site);
 492                 }
 493
 494
 495                 public void GoToSite(AccountInfo account)
 496                 {
 497                     var uri = account.SiteUri.Replace("http://","https://");
 498                     Process.Start(uri);
 499                 }
 500
 501             private bool _statusVisible;
 502
 503             public string MiniStatusCaption
 504             {
 505                 get
 506                 {
 507                     return  _statusVisible ? "Hide Status Window" : "Show Status Window";
 508                 }
 509             }
 510
 511             public void ShowMiniStatus()
 512         {
 513             if (!_statusVisible)
 514                 _windowManager.ShowWindow(MiniStatus);
 515             else
 516             {
 517                 if (MiniStatus.IsActive)
 518                     MiniStatus.TryClose();
 519             }
 520             _statusVisible=!_statusVisible;
 521
 522                 NotifyOfPropertyChange(()=>MiniStatusCaption);
 523         }
 524
 525             /// <summary>
 526         /// Open an explorer window to the target path's directory
 527         /// and select the file
 528         /// </summary>
 529         /// <param name="entry"></param>
 530         public void GoToFile(FileEntry entry)
 531         {
 532             var fullPath = entry.FullPath;
 533             if (!File.Exists(fullPath) && !Directory.Exists(fullPath))
 534                 return;
 535             Process.Start("explorer.exe","/select, " + fullPath);
 536         }
 537
 538         public void OpenLogPath()
 539         {
 540             var pithosDataPath = PithosSettings.PithosDataPath;
 541
 542             Process.Start(pithosDataPath);
 543         }
 544
 545         public void ShowFileProperties()
 546                 {
 547                         var account = Settings.Accounts.First(acc => acc.IsActive);
 548                         var dir = new DirectoryInfo(account.RootPath + @"\pithos");
 549                         var files=dir.GetFiles();
 550                         var r=new Random();
 551                         var idx=r.Next(0, files.Length);
 552                         ShowFileProperties(files[idx].FullName);
 553                 }
 554
 555                 public void ShowFileProperties(string filePath)
 556                 {
 557                         if (String.IsNullOrWhiteSpace(filePath))
 558                                 throw new ArgumentNullException("filePath");
 559                         if (!File.Exists(filePath) && !Directory.Exists(filePath))
 560                                 throw new ArgumentException(String.Format("Non existent file {0}",filePath),"filePath");
 561                         Contract.EndContractBlock();
 562
 563                         var pair=(from monitor in  Monitors
 564                                                            where filePath.StartsWith(monitor.Value.RootPath, StringComparison.InvariantCultureIgnoreCase)
 565                                                                    select monitor).FirstOrDefault();
 566                         var accountMonitor = pair.Value;
 567
 568                         if (accountMonitor == null)
 569                                 return;
 570
 571                         var infoTask=Task.Factory.StartNew(()=>accountMonitor.GetObjectInfo(filePath));
 572
 573
 574
 575                         var fileProperties = new FilePropertiesViewModel(this, infoTask,filePath);
 576                         _windowManager.ShowWindow(fileProperties);
 577                 }
 578
 579                 public void ShowContainerProperties()
 580                 {
 581                         var account = Settings.Accounts.First(acc => acc.IsActive);
 582                         var dir = new DirectoryInfo(account.RootPath);
 583                         var fullName = (from folder in dir.EnumerateDirectories()
 584                                                         where (folder.Attributes & FileAttributes.Hidden) == 0
 585                                                         select folder.FullName).First();
 586                         ShowContainerProperties(fullName);
 587                 }
 588
 589                 public void ShowContainerProperties(string filePath)
 590                 {
 591                         if (String.IsNullOrWhiteSpace(filePath))
 592                                 throw new ArgumentNullException("filePath");
 593                         if (!Directory.Exists(filePath))
 594                                 throw new ArgumentException(String.Format("Non existent file {0}",filePath),"filePath");
 595                         Contract.EndContractBlock();
 596
 597                         var pair=(from monitor in  Monitors
 598                                                            where filePath.StartsWith(monitor.Value.RootPath, StringComparison.InvariantCultureIgnoreCase)
 599                                                                    select monitor).FirstOrDefault();
 600                         var accountMonitor = pair.Value;
 601                         var info = accountMonitor.GetContainerInfo(filePath);
 602
 603
 604
 605                         var containerProperties = new ContainerPropertiesViewModel(this, info,filePath);
 606                         _windowManager.ShowWindow(containerProperties);
 607                 }
 608
 609                 public void SynchNow()
 610                 {
 611                         _pollAgent.SynchNow();
 612                 }
 613
 614                 public ObjectInfo RefreshObjectInfo(ObjectInfo currentInfo)
 615                 {
 616                         if (currentInfo==null)
 617                                 throw new ArgumentNullException("currentInfo");
 618                         Contract.EndContractBlock();
 619
 620                         var monitor = Monitors[currentInfo.Account];
 621                         var newInfo=monitor.CloudClient.GetObjectInfo(currentInfo.Account, currentInfo.Container, currentInfo.Name);
 622                         return newInfo;
 623                 }
 624
 625                 public ContainerInfo RefreshContainerInfo(ContainerInfo container)
 626                 {
 627                         if (container == null)
 628                                 throw new ArgumentNullException("container");
 629                         Contract.EndContractBlock();
 630
 631                         var monitor = Monitors[container.Account];
 632                         var newInfo = monitor.CloudClient.GetContainerInfo(container.Account, container.Name);
 633                         return newInfo;
 634                 }
 635
 636
 637                 public void ToggleSynching()
 638                 {
 639                         bool isPaused=false;
 640                         foreach (var pair in Monitors)
 641                         {
 642                                 var monitor = pair.Value;
 643                                 monitor.Pause = !monitor.Pause;
 644                                 isPaused = monitor.Pause;
 645                         }
 646
 647
 648                         PauseSyncCaption = isPaused ? "Resume syncing" : "Pause syncing";
 649                         var iconKey = isPaused? "TraySyncPaused" : "TrayInSynch";
 650                         StatusIcon = String.Format(@"../Images/{0}.ico", iconKey);
 651                 }
 652
 653                 public void ExitPithos()
 654                 {
 655                         foreach (var pair in Monitors)
 656                         {
 657                                 var monitor = pair.Value;
 658                                 monitor.Stop();
 659                         }
 660
 661                         ((Window)GetView()).Close();
 662                 }
 663                 #endregion
 664
 665
 666                 private readonly Dictionary<PithosStatus, StatusInfo> _iconNames = new List<StatusInfo>
 667                         {
 668                                 new StatusInfo(PithosStatus.InSynch, "All files up to date", "TrayInSynch"),
 669                                 new StatusInfo(PithosStatus.PollSyncing, "Polling Files", "TraySynching"),
 670                 new StatusInfo(PithosStatus.LocalSyncing, "Syncing Files", "TraySynching"),
 671                                 new StatusInfo(PithosStatus.SyncPaused, "Sync Paused", "TraySyncPaused")
 672                         }.ToDictionary(s => s.Status);
 673
 674                 readonly IWindowManager _windowManager;
 675
 676         //private int _syncCount=0;
 677
 678
 679         private PithosStatus _pithosStatus = PithosStatus.Disconnected;
 680
 681         public void SetPithosStatus(PithosStatus status)
 682         {
 683             if (_pithosStatus == PithosStatus.LocalSyncing && status == PithosStatus.PollComplete)
 684                 return;
 685             if (_pithosStatus == PithosStatus.PollSyncing && status == PithosStatus.LocalComplete)
 686                 return;
 687             if (status == PithosStatus.LocalComplete || status == PithosStatus.PollComplete)
 688                 _pithosStatus = PithosStatus.InSynch;
 689             else
 690                 _pithosStatus = status;
 691             UpdateStatus();
 692         }
 693
 694         public void SetPithosStatus(PithosStatus status,string message)
 695         {
 696             StatusMessage = message;
 697             SetPithosStatus(status);
 698         }
 699
 700
 701
 702                 ///<summary>
 703                 /// Updates the visual status indicators of the application depending on status changes, e.g. icon, stat
 704                 ///</summary>
 705                 public void UpdateStatus()
 706                 {
 707
 708                         if (_iconNames.ContainsKey(_pithosStatus))
 709                         {
 710                                 var info = _iconNames[_pithosStatus];
 711                                 StatusIcon = String.Format(@"../Images/{0}.ico", info.IconName);
 712                         }
 713
 714             if (_pithosStatus == PithosStatus.InSynch)
 715                 StatusMessage = "All files up to date";
 716                 }
 717
 718
 719
 720                 private Task StartMonitor(PithosMonitor monitor,int retries=0)
 721                 {
 722                         return Task.Factory.StartNew(() =>
 723                         {
 724                                 using (log4net.ThreadContext.Stacks["Monitor"].Push("Start"))
 725                                 {
 726                                         try
 727                                         {
 728                                                 Log.InfoFormat("Start Monitoring {0}", monitor.UserName);
 729
 730                                                 monitor.Start();
 731                                         }
 732                                         catch (WebException exc)
 733                                         {
 734                                                 if (AbandonRetry(monitor, retries))
 735                                                         return;
 736
 737                                                 HttpStatusCode statusCode =HttpStatusCode.OK;
 738                                                 var response = exc.Response as HttpWebResponse;
 739                                                 if(response!=null)
 740                                                         statusCode = response.StatusCode;
 741
 742                                                 switch (statusCode)
 743                                                 {
 744                                                         case HttpStatusCode.Unauthorized:
 745                                                                 var message = String.Format("API Key Expired for {0}. Starting Renewal",
 746                                                                                                                         monitor.UserName);
 747                                                                 Log.Error(message, exc);
 748                                                         var account = Settings.Accounts.Find(acc => acc.AccountName == monitor.UserName);
 749                                                         account.IsExpired = true;
 750                                 Notify(new ExpirationNotification(account));
 751                                                                 //TryAuthorize(monitor.UserName, retries).Wait();
 752                                                                 break;
 753                                                         case HttpStatusCode.ProxyAuthenticationRequired:
 754                                                                 TryAuthenticateProxy(monitor,retries);
 755                                                                 break;
 756                                                         default:
 757                                                                 TryLater(monitor, exc, retries);
 758                                                                 break;
 759                                                 }
 760                                         }
 761                                         catch (Exception exc)
 762                                         {
 763                                                 if (AbandonRetry(monitor, retries))
 764                                                         return;
 765
 766                                                 TryLater(monitor,exc,retries);
 767                                         }
 768                                 }
 769                         });
 770                 }
 771
 772                 private void TryAuthenticateProxy(PithosMonitor monitor,int retries)
 773                 {
 774                         Execute.OnUIThread(() =>
 775                                                                    {
 776                                                                            var proxyAccount = IoC.Get<ProxyAccountViewModel>();
 777                                                                                 proxyAccount.Settings = Settings;
 778                                                                            if (true != _windowManager.ShowDialog(proxyAccount))
 779                                                                                    return;
 780                                                                            StartMonitor(monitor, retries);
 781                                                                            NotifyOfPropertyChange(() => Accounts);
 782                                                                    });
 783                 }
 784
 785                 private bool AbandonRetry(PithosMonitor monitor, int retries)
 786                 {
 787                         if (retries > 1)
 788                         {
 789                                 var message = String.Format("Monitoring of account {0} has failed too many times. Will not retry",
 790                                                                                         monitor.UserName);
 791                                 _events.Publish(new Notification
 792                                                                         {Title = "Account monitoring failed", Message = message, Level = TraceLevel.Error});
 793                                 return true;
 794                         }
 795                         return false;
 796                 }
 797
 798
 799             private void TryLater(PithosMonitor monitor, Exception exc,int retries)
 800                 {
 801                         var message = String.Format("An exception occured. Can't start monitoring\nWill retry in 10 seconds");
 802                         Task.Factory.StartNewDelayed(10000, () => StartMonitor(monitor,retries+1));
 803                         _events.Publish(new Notification
 804                                                                 {Title = "Error", Message = message, Level = TraceLevel.Error});
 805                         Log.Error(message, exc);
 806                 }
 807
 808
 809                 public void NotifyChange(string status, TraceLevel level=TraceLevel.Info)
 810                 {
 811                         StatusMessage = status;
 812
 813                         _events.Publish(new Notification { Title = "Pithos+", Message = status, Level = level });
 814                 }
 815
 816                 public void NotifyChangedFile(string filePath)
 817                 {
 818             if (RecentFiles.Any(e => e.FullPath == filePath))
 819                 return;
 820
 821                         IProducerConsumerCollection<FileEntry> files=RecentFiles;
 822                         FileEntry popped;
 823                         while (files.Count > 5)
 824                                 files.TryTake(out popped);
 825             var entry = new FileEntry { FullPath = filePath };
 826                         files.TryAdd(entry);
 827                 }
 828
 829                 public void NotifyAccount(AccountInfo account)
 830                 {
 831                         if (account== null)
 832                                 return;
 833                         //TODO: What happens to an existing account whose Token has changed?
 834                         account.SiteUri= String.Format("{0}/ui/?token={1}&user={2}",
 835                                 account.SiteUri, Uri.EscapeDataString(account.Token),
 836                                 Uri.EscapeDataString(account.UserName));
 837
 838                         if (Accounts.All(item => item.UserName != account.UserName))
 839                                 Accounts.TryAdd(account);
 840
 841                 }
 842
 843                 public void NotifyConflicts(IEnumerable<FileSystemInfo> conflictFiles, string message)
 844                 {
 845                         if (conflictFiles == null)
 846                                 return;
 847                     //Convert to list to avoid multiple iterations
 848             var files = conflictFiles.ToList();
 849                         if (files.Count==0)
 850                                 return;
 851
 852                         UpdateStatus();
 853                         //TODO: Create a more specific message. For now, just show a warning
 854                         NotifyForFiles(files,message,TraceLevel.Warning);
 855
 856                 }
 857
 858                 public void NotifyForFiles(IEnumerable<FileSystemInfo> files, string message,TraceLevel level=TraceLevel.Info)
 859                 {
 860                         if (files == null)
 861                                 return;
 862                         if (!files.Any())
 863                                 return;
 864
 865                         StatusMessage = message;
 866
 867                         _events.Publish(new Notification { Title = "Pithos+", Message = message, Level = level});
 868                 }
 869
 870                 public void Notify(Notification notification)
 871                 {
 872                         _events.Publish(notification);
 873                 }
 874
 875
 876                 public void RemoveMonitor(string accountName)
 877                 {
 878                         if (String.IsNullOrWhiteSpace(accountName))
 879                                 return;
 880
 881                         var accountInfo=_accounts.FirstOrDefault(account => account.UserName == accountName);
 882             if (accountInfo != null)
 883             {
 884                 _accounts.TryRemove(accountInfo);
 885                 _pollAgent.RemoveAccount(accountInfo);
 886             }
 887
 888                     PithosMonitor monitor;
 889                         if (Monitors.TryRemove(accountName, out monitor))
 890                         {
 891                                 monitor.Stop();
 892                 //TODO: Also remove any pending actions for this account
 893                 //from the network queue
 894                         }
 895                 }
 896
 897                 public void RefreshOverlays()
 898                 {
 899                         foreach (var pair in Monitors)
 900                         {
 901                                 var monitor = pair.Value;
 902
 903                                 var path = monitor.RootPath;
 904
 905                                 if (String.IsNullOrWhiteSpace(path))
 906                                         continue;
 907
 908                                 if (!Directory.Exists(path) && !File.Exists(path))
 909                                         continue;
 910
 911                                 IntPtr pathPointer = Marshal.StringToCoTaskMemAuto(path);
 912
 913                                 try
 914                                 {
 915                                         NativeMethods.SHChangeNotify(HChangeNotifyEventID.SHCNE_UPDATEITEM,
 916                                                                                                  HChangeNotifyFlags.SHCNF_PATHW | HChangeNotifyFlags.SHCNF_FLUSHNOWAIT,
 917                                                                                                  pathPointer, IntPtr.Zero);
 918                                 }
 919                                 finally
 920                                 {
 921                                         Marshal.FreeHGlobal(pathPointer);
 922                                 }
 923                         }
 924                 }
 925
 926                 #region Event Handlers
 927
 928                 public void Handle(SelectiveSynchChanges message)
 929                 {
 930                         var accountName = message.Account.AccountName;
 931                         PithosMonitor monitor;
 932                         if (_monitors.TryGetValue(accountName, out monitor))
 933                         {
 934                                 monitor.SetSelectivePaths(message.Uris,message.Added,message.Removed);
 935
 936                         }
 937
 938                 }
 939
 940
 941                 private bool _pollStarted;
 942             private Sparkle _sparkle;
 943             private bool _manualUpgradeCheck;
 944
 945             //SMELL: Doing so much work for notifications in the shell is wrong
 946                 //The notifications should be moved to their own view/viewmodel pair
 947                 //and different templates should be used for different message types
 948                 //This will also allow the addition of extra functionality, eg. actions
 949                 //
 950                 public void Handle(Notification notification)
 951                 {
 952                         UpdateStatus();
 953
 954                         if (!Settings.ShowDesktopNotifications)
 955                                 return;
 956
 957                         if (notification is PollNotification)
 958                         {
 959                                 _pollStarted = true;
 960                                 return;
 961                         }
 962                         if (notification is CloudNotification)
 963                         {
 964                                 if (!_pollStarted)
 965                                         return;
 966                                 _pollStarted= false;
 967                                 notification.Title = "Pithos+";
 968                                 notification.Message = "Start Synchronisation";
 969                         }
 970
 971                     var deleteNotification = notification as CloudDeleteNotification;
 972             if (deleteNotification != null)
 973             {
 974                 StatusMessage = String.Format("Deleted {0}", deleteNotification.Data.Name);
 975                 return;
 976             }
 977
 978                     var progress = notification as ProgressNotification;
 979
 980
 981             if (progress != null)
 982                     {
 983                         StatusMessage = String.Format("{0} {1:p2} of {2} - {3}",
 984                                               progress.Action,
 985                                                       progress.Block/(double)progress.TotalBlocks,
 986                                                       progress.FileSize.ToByteSize(),
 987                                                       progress.FileName);
 988                         return;
 989                     }
 990
 991                     var info = notification as StatusNotification;
 992             if (info != null)
 993             {
 994                 StatusMessage = info.Title;
 995                 return;
 996             }
 997                         if (String.IsNullOrWhiteSpace(notification.Message) && String.IsNullOrWhiteSpace(notification.Title))
 998                                 return;
 999
1000             if (notification.Level <= TraceLevel.Warning)
1001                             ShowBalloonFor(notification);
1002                 }
1003
1004             private void ShowBalloonFor(Notification notification)
1005             {
1006             Contract.Requires(notification!=null);
1007
1008             if (!Settings.ShowDesktopNotifications)
1009                 return;
1010
1011             BalloonIcon icon;
1012                 switch (notification.Level)
1013                 {
1014                 case TraceLevel.Verbose:
1015                         return;
1016                     case TraceLevel.Info:
1017                         icon = BalloonIcon.Info;
1018                         break;
1019                 case TraceLevel.Error:
1020                     icon = BalloonIcon.Error;
1021                     break;
1022                 case TraceLevel.Warning:
1023                         icon = BalloonIcon.Warning;
1024                         break;
1025                     default:
1026                         return;
1027                 }
1028
1029                 var tv = (ShellView) GetView();
1030                 System.Action clickAction = null;
1031                 if (notification is ExpirationNotification)
1032                 {
1033                     clickAction = () => ShowPreferences("AccountTab");
1034                 }
1035                 var balloon = new PithosBalloon
1036                                   {
1037                                       Title = notification.Title,
1038                                       Message = notification.Message,
1039                                       Icon = icon,
1040                                       ClickAction = clickAction
1041                                   };
1042                 tv.TaskbarView.ShowCustomBalloon(balloon, PopupAnimation.Fade, 4000);
1043             }
1044
1045             #endregion
1046
1047                 public void Handle(ShowFilePropertiesEvent message)
1048                 {
1049                         if (message == null)
1050                                 throw new ArgumentNullException("message");
1051                         if (String.IsNullOrWhiteSpace(message.FileName) )
1052                                 throw new ArgumentException("message");
1053                         Contract.EndContractBlock();
1054
1055                         var fileName = message.FileName;
1056                         //TODO: Display file properties for non-container folders
1057                         if (File.Exists(fileName))
1058                                 //Retrieve the full name with exact casing. Pithos names are case sensitive
1059                                 ShowFileProperties(FileInfoExtensions.GetProperFilePathCapitalization(fileName));
1060                         else if (Directory.Exists(fileName))
1061                                 //Retrieve the full name with exact casing. Pithos names are case sensitive
1062                         {
1063                                 var path = FileInfoExtensions.GetProperDirectoryCapitalization(fileName);
1064                                 if (IsContainer(path))
1065                                         ShowContainerProperties(path);
1066                                 else
1067                                         ShowFileProperties(path);
1068                         }
1069                 }
1070
1071                 private bool IsContainer(string path)
1072                 {
1073                         var matchingFolders = from account in _accounts
1074                                                                   from rootFolder in Directory.GetDirectories(account.AccountPath)
1075                                                                   where rootFolder.Equals(path, StringComparison.InvariantCultureIgnoreCase)
1076                                                                   select rootFolder;
1077                         return matchingFolders.Any();
1078                 }
1079
1080                 public FileStatus GetFileStatus(string localFileName)
1081                 {
1082                         if (String.IsNullOrWhiteSpace(localFileName))
1083                                 throw new ArgumentNullException("localFileName");
1084                         Contract.EndContractBlock();
1085
1086                         var statusKeeper = IoC.Get<IStatusKeeper>();
1087                         var status=statusKeeper.GetFileStatus(localFileName);
1088                         return status;
1089                 }
1090
1091             public void RemoveAccountFromDatabase(AccountSettings account)
1092             {
1093             var statusKeeper = IoC.Get<IStatusKeeper>();
1094             statusKeeper.ClearFolderStatus(account.RootPath);
1095             }
1096         }
1097 }