Imports System.Collections.ObjectModel
Imports System.IO
Imports EgtUILib
Imports EgtWPFLib5

Public Class MaterialDbVM
   Inherits VMBase

#Region "FIELDS & PROPERTIES"

   Private m_MaterialList As New ObservableCollection(Of Material)
   Public ReadOnly Property MaterialList As ObservableCollection(Of Material)
      Get
         Return m_MaterialList
      End Get
   End Property

   Private m_SelMaterial As Material
   Public Property SelMaterial As Material
      Get
         Return m_SelMaterial
      End Get
      Set(value As Material)
         ' verifico se modificato
         If Not IsNothing(m_SelMaterial) AndAlso m_SelMaterial.bIsModified Then
            ' chiedo se salvare
            Select Case MessageBox.Show("Do you want to save material modification?", "Info", MessageBoxButton.YesNoCancel, MessageBoxImage.Question)
               Case MessageBoxResult.Yes
                  m_SelMaterial.Save()
               Case MessageBoxResult.No
                  m_SelMaterial.ResetModification()
               Case MessageBoxResult.Cancel
                  NotifyPropertyChanged(NameOf(SelMaterial))
                  Return
            End Select
         End If
         ' recupero stato IsExpanded di tutte le categorie
         Dim IsExpandedList As New List(Of Boolean)
         If Not IsNothing(m_SelMaterial) Then
            For Each Cathegory In m_SelMaterial.CathegoryList
               IsExpandedList.Add(Cathegory.Cathegory_IsExpanded)
            Next
         End If
         m_SelMaterial = value
         ' ripristino stato IsExpanded di tutte le categorie
         If IsExpandedList.Count > 0 AndAlso Not IsNothing(value) Then
            For Index = 0 To m_SelMaterial.CathegoryList.Count - 1
               m_SelMaterial.CathegoryList(Index).Cathegory_IsExpanded = IsExpandedList(Index)
            Next
         End If
      End Set
   End Property

   Private m_Name_Visibility As Visibility = Visibility.Collapsed
   Public ReadOnly Property Name_Visibility As Visibility
      Get
         Return m_Name_Visibility
      End Get
   End Property
   Friend Sub SetNameVisibility(bValue As Boolean)
      m_Name_Visibility = If(bValue, Visibility.Visible, Visibility.Collapsed)
      NotifyPropertyChanged(NameOf(Name_Visibility))
   End Sub

   ' variabile che indica se una qualunque lavorazione e' stata modificata
   Private m_bIsModified As Boolean
   Public ReadOnly Property bIsModified As Boolean
      Get
         Return m_bIsModified
      End Get
   End Property
   Friend Sub SetIsModified(value As Boolean)
      m_bIsModified = value
   End Sub

   ' Definizione comandi
   Private m_cmdOk As ICommand
   Private m_cmdCopy As ICommand
   Private m_cmdSave As ICommand
   Private m_cmdDelete As ICommand

#End Region    ' FIELDS & PROPERTIES

#Region "CONSTRUCTORS"

   Sub New()
      ' Creo riferimento a questa classe in EgtCAM5Map
      Map.SetRefMaterialDbVM(Me)
   End Sub

#End Region    ' CONSTRUCTORS

#Region "METHODS"

   Friend Sub Init()
      MaterialList.Clear()
      Dim nIndex As Integer = 1
      Dim sGUID As String = ""
      Dim sName As String = ""
      While ReadMaterialParamString(nIndex, MAT_GUID, "", sGUID) > 0
         MaterialList.Add(New Material(nIndex))
         nIndex += 1
      End While
      Dim sCurrMaterial As String = ""
      GetMainPrivateProfileString(S_PRINTING3D, K_CURRMATERIAL, "", sCurrMaterial)
      m_SelMaterial = MaterialList.FirstOrDefault(Function(x) x.sGUID = sCurrMaterial)
      NotifyPropertyChanged(NameOf(SelMaterial))
   End Sub

#End Region    ' METHODS

#Region "COMMANDS"

#Region "Ok"

   Public ReadOnly Property Ok_Command As ICommand
      Get
         If m_cmdOk Is Nothing Then
            m_cmdOk = New Command(AddressOf Ok)
         End If
         Return m_cmdOk
      End Get
   End Property

   Public Sub Ok()
      If Not IsNothing(m_SelMaterial) AndAlso m_SelMaterial.bIsModified Then
         ' chiedo se salvare
         Select Case MessageBox.Show("Do you want to save material modification?", "Warning", MessageBoxButton.YesNoCancel, MessageBoxImage.Warning)
            Case MessageBoxResult.Yes
               m_SelMaterial.Save()
            Case MessageBoxResult.No
               m_SelMaterial.ResetModification()
            Case MessageBoxResult.Cancel
               Return
         End Select
      End If
      If m_bIsModified Then
         Dim sBakMatIniFilePath As String = Path.ChangeExtension(CurrentMachine.sMaterialsFilePath, ".bak")
         If File.Exists(sBakMatIniFilePath) Then
            Try
               ' cambio estensione in bak a file Db vecchio
               File.Delete(sBakMatIniFilePath)
            Catch ex As Exception
            End Try
         End If
         If File.Exists(CurrentMachine.sMaterialsFilePath) Then
            Try
               ' cambio estensione in bak a file Db vecchio
               File.Move(CurrentMachine.sMaterialsFilePath, sBakMatIniFilePath)
            Catch ex As Exception
            End Try
         End If
         ' se ancora esiste lo elimino
         If File.Exists(CurrentMachine.sMaterialsFilePath) Then
            Try
               File.Delete(CurrentMachine.sMaterialsFilePath)
            Catch ex As Exception
            End Try
         End If
         ' creo nuovo file
         If Not File.Exists(CurrentMachine.sMaterialsFilePath) Then
            Try
               File.WriteAllLines(CurrentMachine.sMaterialsFilePath, {"; Commento per evitare BOM con UTF-8"})
            Catch ex As Exception
            End Try
         End If
         ' salvo tutte le lavorazioni sul Db
         For Index = 0 To m_MaterialList.Count - 1
            m_MaterialList(Index).WriteParamsOnDb(Index + 1)
         Next
         m_bIsModified = False
         ' aggiorno lista materiali Db
         Init()
         ' aggiorno lista materiali TopBar
         Dim PrevMaterialGuid As String = Map.refTopPanelVM.SelMaterial.sGUID
         Map.refTopPanelVM.InitMaterialList()
         Dim PrevMaterial As MaterialIndex = Map.refTopPanelVM.MaterialList.FirstOrDefault(Function(x) x.sGUID = PrevMaterialGuid)
         If Not IsNothing(PrevMaterial) Then
            Map.refTopPanelVM.SetSelMaterial(PrevMaterial)
         Else
            Map.refTopPanelVM.SelMaterial = Nothing
            Map.refTopPanelVM.NotifyPropertyChanged(NameOf(Map.refTopPanelVM.SelMaterial))
         End If
      End If
      ' ripristino modalita' standard
      Map.refTopPanelVM.SelPage = Pages.MODIFY
   End Sub

#End Region    ' Ok

#Region "Copy"

   Public ReadOnly Property Copy_Command As ICommand
      Get
         If m_cmdCopy Is Nothing Then
            m_cmdCopy = New Command(AddressOf Copy)
         End If
         Return m_cmdCopy
      End Get
   End Property

   Public Sub Copy()
      If IsNothing(m_SelMaterial) Then Return
      ' recupero stato IsExpanded di tutte le categorie
      Dim IsExpandedList As New List(Of Boolean)
      For Each Cathegory In m_SelMaterial.CathegoryList
         IsExpandedList.Add(Cathegory.Cathegory_IsExpanded)
      Next
      Dim NewMaterial As Material = New Material()
      MaterialList.Add(NewMaterial)
      m_SelMaterial = NewMaterial
      NotifyPropertyChanged(NameOf(SelMaterial))
      ' ripristino stato IsExpanded di tutte le categorie
      For Index = 0 To m_SelMaterial.CathegoryList.Count - 1
         m_SelMaterial.CathegoryList(Index).Cathegory_IsExpanded = IsExpandedList(Index)
      Next
      SetNameVisibility(True)
   End Sub

#End Region    ' Copy

#Region "Save"

   Public ReadOnly Property Save_Command As ICommand
      Get
         If m_cmdSave Is Nothing Then
            m_cmdSave = New Command(AddressOf Save)
         End If
         Return m_cmdSave
      End Get
   End Property

   Public Sub Save()
      m_SelMaterial.Save()
   End Sub

#End Region    ' Save

#Region "Delete"

   Public ReadOnly Property Delete_Command As ICommand
      Get
         If m_cmdDelete Is Nothing Then
            m_cmdDelete = New Command(AddressOf Delete)
         End If
         Return m_cmdDelete
      End Get
   End Property

   Public Sub Delete()
      ' chiedo conferma
      Select Case MessageBox.Show("Sei sicuro di voler cancellare la lavorazione selezionata?", "Warning", MessageBoxButton.YesNo, MessageBoxImage.Warning)
         Case MessageBoxResult.Yes
            m_MaterialList.Remove(m_SelMaterial)
            ' segno Db come modificato
            Map.refMaterialDbVM.SetIsModified(True)
         Case MessageBoxResult.No
            Return
      End Select
   End Sub

#End Region    ' Delete

#End Region    ' COMMANDS

End Class