Imports System.ComponentModel
Imports System.IO
Imports System.Windows.Forms.Integration
Imports EgtUILib
'Imports System.Text.RegularExpressions

Public Class SceneManagerViewModel
   Implements INotifyPropertyChanged
   ' riferimento alla finestra principale
   Private m_rfMainWindowViewModel As MainWindowViewModel
   Friend bProtectKey As Boolean = True

   Private m_ShowPanel As ShowPanelView
   Public ReadOnly Property ShowPanel As ShowPanelView
      Get
         If IsNothing(m_ShowPanel) Then
            m_ShowPanel = New ShowPanelView
            m_ShowPanel.DataContext = New ShowPanelViewModel(Me)
         End If
         Return m_ShowPanel
      End Get
   End Property

   Private m_ViewPanel As ViewPanelView
   Public ReadOnly Property ViewPanel As ViewPanelView
      Get
         If IsNothing(m_ViewPanel) Then
            m_ViewPanel = New ViewPanelView
            m_ViewPanel.DataContext = New ViewPanelViewModel(Me)
         End If
         Return m_ViewPanel
      End Get
   End Property

   Private m_PopUpViewPanel As PopUpViewPanelView
   Public ReadOnly Property PopUpViewPanel As PopUpViewPanelView
      Get
         If IsNothing(m_PopUpViewPanel) Then
            m_PopUpViewPanel = New PopUpViewPanelView
            m_PopUpViewPanel.DataContext = New PopUpViewPanelViewModel(Me)
         End If
         Return m_PopUpViewPanel
      End Get
   End Property

   Private m_InstrumentPanel As InstrumentPanelView
   Public ReadOnly Property InstrumentPanel As InstrumentPanelView
      Get
         If IsNothing(m_InstrumentPanel) Then
            m_InstrumentPanel = New InstrumentPanelView
            m_InstrumentPanel.DataContext = New InstrumentPanelViewModel(Me)
         End If
         Return m_InstrumentPanel
      End Get
   End Property

   Private m_RefreshPanel As RefreshPanelView
   Public ReadOnly Property RefreshPanel As RefreshPanelView
      Get
         If IsNothing(m_RefreshPanel) Then
            m_RefreshPanel = New RefreshPanelView
            m_RefreshPanel.DataContext = New RefreshPanelViewModel(Me)
         End If
         Return m_RefreshPanel
      End Get
   End Property

   Private m_StatusBar As StatusBarView
   Public ReadOnly Property StatusBar As StatusBarView
      Get
         If IsNothing(m_StatusBar) Then
            m_StatusBar = New StatusBarView
            m_StatusBar.DataContext = New StatusBarViewModel(Me)
         End If
         Return m_StatusBar
      End Get
   End Property

   'PROJECT PAGE'S SCENE FIELDS AND PROPERTIES
   ' Reference to the ProjectScene
   Private WithEvents m_ProjectScene As New Scene
   Public ReadOnly Property ProjectScene As Scene
      Get
         Return m_ProjectScene
      End Get
   End Property

   ' Property used to bind the scene to the WindowsFormsHost in XAML
   Private m_ProjectSceneHost As WindowsFormsHost
   Public ReadOnly Property ProjectSceneHost As WindowsFormsHost
      Get
         If IsNothing(m_ProjectSceneHost) Then
            m_ProjectSceneHost = New WindowsFormsHost() With {.Child = m_ProjectScene}
            ' Creazione scena
            PreInitializeScene()
            If Not m_ProjectScene.Init() Then
               bProtectKey = False
               EgtOutLog(EgtMsg(5129))
               m_ProjectSceneHost.Child = Nothing
               ' Box di avviso chiave mancante
               MessageBox.Show(EgtMsg(MSG_MISSINGKEYWD + 2) & vbCrLf & EgtMsg(MSG_MISSINGKEYWD + 3), EgtMsg(MSG_MISSINGKEYWD + 1), MessageBoxButton.OK, MessageBoxImage.Error)
               ' Chiudo il programma
               Application.Current.Shutdown()
            ' Verifico abilitazione prodotto
            ElseIf (IniFile.m_nKeyOptions And KEY_OPT.DOORCREATOR) = 0 Then
               MsgBox(EgtMsg(MSG_MISSINGKEYWD + 5), MsgBoxStyle.OkOnly, EgtMsg(MSG_MISSINGKEYWD + 1))
               ' Chiudo il programma
               Application.Current.Shutdown()
            ' Tutto bene
            Else
               EgtSetCurrentContext(m_ProjectScene.GetCtx)
               PostInitializeScene()
               m_ProjectScene.SetStatusNull()
            End If
         End If
         Return m_ProjectSceneHost
      End Get
   End Property

   ' ''#Region "Messages"
   ' ''   Public ReadOnly Property RefreshMsg As String
   ' ''      Get
   ' ''         Return EgtMsg(50301)
   ' ''      End Get
   ' ''   End Property

   ' ''#End Region

   ' ''#Region "ToolTip"
   ' ''   Public ReadOnly Property RefreschToolTip As String
   ' ''      Get
   ' ''         Return EgtMsg(50301)
   ' ''      End Get
   ' ''   End Property

   ' ''#End Region

   ' Scene controller
   Private WithEvents m_Controller As New Controller

   ' definizione comando
   Private m_CmdRefreshBtn As ICommand

   Sub New(ByRef MainWindowViewModel As MainWindowViewModel)
      m_rfMainWindowViewModel = MainWindowViewModel
   End Sub

   Private Sub PreInitializeScene()
      ' imposto colore di default
      Dim DefColor As New Color3d(0, 0, 0)
      GetPrivateProfileColor(S_GEOMDB, K_DEFAULTCOLOR, DefColor)
      m_ProjectScene.SetDefaultMaterial(DefColor)
      ' imposto colori sfondo
      Dim BackTopColor As New Color3d(192, 192, 192)
      GetPrivateProfileColor(S_SCENE, K_BACKTOP, BackTopColor)
      Dim BackBotColor As New Color3d(BackTopColor)
      GetPrivateProfileColor(S_SCENE, K_BACKBOTTOM, BackBotColor)
      m_ProjectScene.SetViewBackground(BackTopColor, BackBotColor)
      ' imposto colore di evidenziazione
      Dim MarkColor As New Color3d(255, 255, 0)
      GetPrivateProfileColor(S_SCENE, K_MARK, MarkColor)
      m_ProjectScene.SetMarkMaterial(MarkColor)
      ' imposto colore per superfici selezionate
      Dim SelSurfColor As New Color3d(255, 255, 192)
      GetPrivateProfileColor(S_SCENE, K_SELSURF, SelSurfColor)
      m_ProjectScene.SetSelSurfMaterial(SelSurfColor)
      ' imposto tipo e colore del rettangolo di zoom
      Dim bOutline As Boolean = True
      Dim ZwColor As New Color3d(0, 0, 0)
      GetPrivateProfileZoomWin(S_SCENE, K_ZOOMWIN, bOutline, ZwColor)
      m_ProjectScene.SetZoomWinAttribs(bOutline, ZwColor)
      ' imposto colore della linea di distanza
      Dim DstLnColor As New Color3d(255, 0, 0)
      GetPrivateProfileColor(S_SCENE, K_DISTLINE, DstLnColor)
      m_ProjectScene.SetDistLineMaterial(DstLnColor)
      ' imposto parametri OpenGL
      Dim nDriver As Integer = GetPrivateProfileInt(S_OPENGL, K_DRIVER, 3)
      Dim b2Buff As Boolean = (GetPrivateProfileInt(S_OPENGL, K_DOUBLEBUFFER, 1) <> 0)
      Dim nColorBits As Integer = GetPrivateProfileInt(S_OPENGL, K_COLORBITS, 32)
      Dim nDepthBits As Integer = GetPrivateProfileInt(S_OPENGL, K_DEPTHBITS, 32)
      m_ProjectScene.SetViewAttributes(nDriver, b2Buff, nColorBits, nDepthBits)
   End Sub

   Private Sub PostInitializeScene()
      ' Impostazioni Controller
      m_Controller.SetScene(m_ProjectScene)
      Dim bLuaReg As Boolean = (GetPrivateProfileInt(S_GENERAL, K_COMMANDLOG, 0) <> 0)
      Dim nShowMode As Integer = GetPrivateProfileInt(S_SCENE, K_SHOWMODE, SM.SHADING)
      Dim nShowCurveDir As Integer = GetPrivateProfileInt(S_SCENE, K_CURVEDIR, 0)
   End Sub

   'questo metodo restituisce l'errore letto nel file CurrDoor.txt
   Friend Sub ShowGraphicError()
      Dim FileContent() As String
      ' controllo se esite il file CurrDoor.txt
      If Not File.Exists(IniFile.m_sTempDir & "\" & TEMP_FILE_TXT) Then Return
      FileContent = File.ReadAllLines(IniFile.m_sTempDir & "\" & TEMP_FILE_TXT)
      ' se il file esiste ma è vuoto
      If FileContent.Count = 0 Then
         MessageBox.Show(EgtMsg(50107), EgtMsg(50101), MessageBoxButton.OK, MessageBoxImage.Error)
      End If
      Dim IndexLine As Integer = 0
      Dim nMsgErr As Integer = 0
      ' leggo il valore numerico (se il valore non è numerico è passato di default il valore 0)
      nMsgErr = RegexFunction.ErrDraw(FileContent(IndexLine))
      ' passo alla riga succesiva
      IndexLine += 1
      ' se il valore è maggiore di zero allora è un errore
      If nMsgErr > 0 Then
         ' salto tutte le righe vuote
         While String.IsNullOrEmpty(FileContent(IndexLine)) AndAlso IndexLine < FileContent.Count
            IndexLine += 1
         End While
         DirectCast(Me.RefreshPanel.DataContext, RefreshPanelViewModel).m_MsgGraphic = FileContent(IndexLine)
         'MessageBox.Show(FileContent(IndexLine), "Error", MessageBoxButton.OK, MessageBoxImage.Error)
         ' se compare u errore disattivo il righello
         DirectCast(Me.InstrumentPanel.DataContext, InstrumentPanelViewModel).GetDistIsChecked = False
         ' rendo visibile il bottone dell'errore
         DirectCast(Me.RefreshPanel.DataContext, RefreshPanelViewModel).ButtonVisibility = Visibility.Visible
         DirectCast(Me.RefreshPanel.DataContext, RefreshPanelViewModel).MsgError = EgtMsg(50101) & nMsgErr
         ' altrimenti un avvertimento
      ElseIf nMsgErr < 0 Then
         While String.IsNullOrEmpty(FileContent(IndexLine)) AndAlso IndexLine < FileContent.Count
            IndexLine += 1
         End While
         DirectCast(Me.RefreshPanel.DataContext, RefreshPanelViewModel).m_MsgGraphic = FileContent(IndexLine)
         'MessageBox.Show(FileContent(IndexLine), "Warning", MessageBoxButton.OK, MessageBoxImage.Warning)
         DirectCast(Me.RefreshPanel.DataContext, RefreshPanelViewModel).ButtonVisibility = Visibility.Visible
         DirectCast(Me.RefreshPanel.DataContext, RefreshPanelViewModel).MsgError = EgtMsg(50144) & nMsgErr
      End If

      If nMsgErr = 0 Then
         'DirectCast(Me.StatusBar.DataContext, StatusBarViewModel).StatusOutput = String.Empty
         DirectCast(Me.RefreshPanel.DataContext, RefreshPanelViewModel).ButtonVisibility = Visibility.Collapsed
      End If
   End Sub

#Region "COMMAND"

#Region "RefreshBtnCommand"

   ''' <summary>
   ''' Returns a command that do Exec.
   ''' </summary>
   Public ReadOnly Property RefreshBtnCommand As ICommand
      Get
         If m_CmdRefreshBtn Is Nothing Then
            m_CmdRefreshBtn = New Command(AddressOf RefreshBtn)
         End If
         Return m_CmdRefreshBtn
      End Get
   End Property

   ''' <summary>
   ''' Execute the Exec. This method is invoked by the ExecCommand.
   ''' </summary>
   Public Sub RefreshBtn()
      Dim rfDoorParametersViewModel As DoorParametersViewModel = DirectCast(m_rfMainWindowViewModel.DoorParameters.DataContext, DoorParametersViewModel)
      Dim CurrDoorPath As String = IniFile.m_sTempDir & "\" & TEMP_FILE
      If Not IsNothing(rfDoorParametersViewModel.CurrDoor) AndAlso Not String.IsNullOrWhiteSpace(DirectCast(m_rfMainWindowViewModel.DoorManager.DataContext, DoorManagerViewModel).SelectedDoor) Then
         DdfFile.WriteDDF(rfDoorParametersViewModel.CurrDoor, CurrDoorPath, True)
         ExecDoors(m_ProjectScene, CurrDoorPath)
      End If
      ShowGraphicError()
   End Sub

#End Region    ' RefreshBtnCommand

#End Region    ' Command

#Region "EVENTS"

   Sub m_ProjectScene_OnChangedSnapPointType(sender As Object, nSpType As EgtUILib.EgtInterface.SP, bForced As Boolean) Handles m_ProjectScene.OnChangedSnapPointType
      Dim rfStatusBarViewModel As StatusBarViewModel = DirectCast(m_StatusBar.DataContext, StatusBarViewModel)
      For SnapIndex = 0 To rfStatusBarViewModel.SnapPointTypeList.Count - 1
         Dim TempSnapPoint As SPItem = rfStatusBarViewModel.SnapPointTypeList(SnapIndex)
         If TempSnapPoint.SPValue = nSpType Then
            rfStatusBarViewModel.SnapPointSelect = TempSnapPoint
         End If
      Next
   End Sub

   Sub m_ProjectScene_OnShowDistance(sender As Object, sDistance As String) Handles m_ProjectScene.OnShowDistance
      ' se deseleziono il righello
      Dim rfStatusBarViewModel As StatusBarViewModel = DirectCast(m_StatusBar.DataContext, StatusBarViewModel)
      Dim rfInstrumentPanel As InstrumentPanelViewModel = DirectCast(m_InstrumentPanel.DataContext, InstrumentPanelViewModel)
      ' restituisco una stringa vuota alla textblock che contiene la distanza
      rfStatusBarViewModel.StatusOutput = sDistance
   End Sub

#End Region

   Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged

   Public Sub NotifyPropertyChanged(propName As String)
      RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propName))
   End Sub

End Class