Imports System.Threading
Imports System.Math
Imports System.IO

Public Class MainWindowM

#Region "FIELDS"

   ' massimo numero di istanze del programma ammesse
   Const MAX_INST As Integer = 1

   Private m_objMutex As Mutex

   Private m_sDataRoot As String = String.Empty
   Friend ReadOnly Property sDataRoot As String
      Get
         Return m_sDataRoot
      End Get
   End Property

   Private m_sDataDir As String = String.Empty
   Friend ReadOnly Property sDataDir As String
      Get
         Return m_sDataDir
      End Get
   End Property

   Private m_sConfigDir As String = String.Empty
   Public ReadOnly Property sConfigDir As String
      Get
         Return m_sConfigDir
      End Get
   End Property

   Private m_sScriptDir As String = String.Empty
   Public ReadOnly Property sScriptDir As String
      Get
         Return m_sScriptDir
      End Get
   End Property

   Private m_nDebug As Integer = 0
   Public ReadOnly Property DebugLevel As Integer
      Get
         Return m_nDebug
      End Get
   End Property

   Private m_bFirstInstance As Boolean = False
   Friend ReadOnly Property bFirstInstance As Boolean
      Get
         Return m_bFirstInstance
      End Get
   End Property

   Private m_nInstance As Integer = 0
   Friend ReadOnly Property nInstance As Integer
      Get
         Return m_nInstance
      End Get
   End Property

   Private m_nUserLevel As Integer = 1
   Friend ReadOnly Property nUserLevel As Integer
      Get
         Return m_nUserLevel
      End Get
   End Property

   Private m_nKeyLevel As Integer = 0
   Friend ReadOnly Property nKeyLevel As Integer
      Get
         Return m_nKeyLevel
      End Get
   End Property

   Private m_nKeyOptions As UInteger = 0
   Friend ReadOnly Property nKeyOptions As Integer
      Get
         Return m_nKeyOptions
      End Get
   End Property

   Friend ReadOnly Property sVersion As String
      Get
         Return My.Application.Info.Version.Major.ToString() & "." &
                My.Application.Info.Version.Minor.ToString() &
                (ChrW(97 - 1 + My.Application.Info.Version.Build)).ToString() &
                My.Application.Info.Version.Revision.ToString()
      End Get
   End Property

   Private m_sTempDir As String
   Friend ReadOnly Property sTempDir As String
      Get
         Return m_sTempDir
      End Get
   End Property

   Private m_sResourcesRoot As String
   Friend ReadOnly Property sResourcesRoot As String
      Get
         Return m_sResourcesRoot
      End Get
   End Property

   Private m_sLogFile As String
   Friend ReadOnly Property sLogFile As String
      Get
         Return m_sLogFile
      End Get
   End Property

#End Region    ' FIELDS

#Region "CONSTRUCTOR"

   Sub New()
      InitializeEgtEnvironment()
   End Sub

#End Region    ' CONSTRUCTOR

#Region "METHODS"

   Private Sub InitializeEgtEnvironment()
      ' Impostazione path radice per i dati
      m_sDataRoot = System.AppDomain.CurrentDomain.BaseDirectory
      If GetPrivateProfileString(S_DATA, K_DATAROOT, "", m_sDataRoot, m_sDataRoot & "\" & DAT_FILE_NAME) = 0 Then
         m_sDataRoot = System.AppDomain.CurrentDomain.BaseDirectory
      End If
      ' Impostazione direttorio di configurazione
      m_sConfigDir = m_sDataRoot & "\" & CONF_DIR
      ' Impostazione direttorio per file script
      m_sScriptDir = m_sDataRoot & "\" & SCRIPT_DIR
      ' Impostazione direttorio per file temporanei
      m_sTempDir = m_sDataRoot & "\" & TEMP_DIR
      ' Impostazione path Ini file
      IniFile.SetIniFile(m_sConfigDir & "\" & INI_FILE_NAME)
      ' Impostazione path resources dir
      m_sResourcesRoot = m_sDataRoot & "\" & RES_DIR
      ' Verifico indice di istanza
      ManageInstance()
      '' Imposto tipo di chiave
      'EgtSetLockType(KEY_TYPE.HW)
      '' Leggo e imposto chiave di protezione
      'Dim sLicFileName As String = String.Empty
      'GetMainPrivateProfileString(S_GENERAL, K_LICENCE, LIC_FILE_NAME, sLicFileName)
      'Dim sLicFile As String = m_sConfigDir & "\" & sLicFileName
      'Dim sKey As String = String.Empty
      'EgtUILib.GetPrivateProfileString(S_LICENCE, K_KEY, "", sKey, sLicFile)
      'EgtSetKey(sKey)
      '' Recupero livello e opzioni della chiave
      'Dim bKey As Boolean = EgtGetKeyLevel(5583, 2605, 1, m_nKeyLevel) And
      '                      EgtGetKeyOptions(5583, 2605, 1, m_nKeyOptions)
      '' Inizializzazione generale di EgtInterface
      'm_nDebug = GetMainPrivateProfileInt(S_GENERAL, K_DEBUG, 0)
      ' inizializzo log
      m_sLogFile = m_sTempDir & "\" & GENLOG_FILE_NAME.Replace("#", m_nInstance.ToString())
      Lua_General.SetLogPath(m_sLogFile)
      If File.Exists(m_sLogFile) Then
         Try
            File.Copy(m_sLogFile, m_sLogFile & ".bak", True)
            File.Delete(m_sLogFile)
         Catch ex As Exception
            EgtOutLog("Old log delete failed!" & ex.Message)
         End Try
      End If
      Dim sLogMsg As String = "User " & Environment.MachineName & "\" & Environment.UserName & " (" & m_nInstance.ToString() & ")" & vbLf &
                              My.Application.Info.Title.ToString() & " ver. " &
                              My.Application.Info.Version.Major.ToString() &
                              "." & My.Application.Info.Version.Minor.ToString() &
                              (ChrW(97 - 1 + My.Application.Info.Version.Build)).ToString() &
                              My.Application.Info.Version.Revision.ToString()
      EgtOutLog(sLogMsg)
      'EgtInit(m_nDebug, m_sLogFile, sLogMsg)
      'EgtSetTempDir(m_sTempDir)
      'EgtSetIniFile(IniFile.m_sIniFile)
      ' Leggo direttorio dei messaggi (se manca uso direttorio di configurazione)
      'Dim sMsgDir As String = String.Empty
      'If GetMainPrivateProfileString(S_GENERAL, K_MESSAGESDIR, "", sMsgDir) = 0 Then
      '   sMsgDir = m_sConfigDir
      'End If
      ''' Inizializzo OptionModule
      ''OptionModule.InitOptionModule()
      '' Leggo lingua corrente
      'Dim sLanguage As String = String.Empty
      'GetMainPrivateProfileString(S_GENERAL, K_MESSAGES, "", sLanguage)
      '' Recupero nome file dei messaggi della lingua corrente
      'Dim sMsgName As String = "EgalTechIta.txt"
      'Dim nIndex As Integer = 1
      'While True
      '   Dim ReadLanguage As Language = GetMainPrivateProfileLanguage(S_LANGUAGES, K_LANGUAGE & nIndex)
      '   If IsNothing(ReadLanguage) Then Exit While
      '   If String.Compare(ReadLanguage.Name, sLanguage, True) = 0 Then
      '      sMsgName = ReadLanguage.FilePath
      '      Exit While
      '   End If
      '   nIndex += 1
      'End While
      '' Leggo file messaggi
      'Dim sMsgFilePath As String = sMsgDir & "\" & sMsgName
      'If Not EgtLoadMessages(sMsgFilePath) Then
      '   EgtOutLog("Error in EgtLoadMessages")
      'End If
      ' Leggo e imposto livello utilizzatore
      ' m_nUserLevel = Math.Min(m_nKeyLevel, GetMainPrivateProfileInt(S_GENERAL, K_USERLEVEL, 1))
      ' Info su opzioni chiave
      'EgtOutLog("KeyOptions : " & bKey.ToString() & " " & m_nKeyOptions.ToString())
      ' inizializzo ambiente Lua
      LuaManager.Init()
   End Sub

   Private Sub ManageInstance()
      Dim bCreated As Boolean
      Try
         m_objMutex = New Mutex(False, "Global\Supervisor", bCreated)
      Catch
         bCreated = False
      End Try
      m_bFirstInstance = bCreated
      If bCreated Then
         ' Prima istanza
         m_nInstance = 1
         ' Aggiorno stato istanze attive
         WriteMainPrivateProfileString(S_GENERAL, K_INSTANCES, m_nInstance.ToString())
      Else
         ' Leggo il massimo numero di istanze ammesse
         Dim nMaxInst As Integer = GetMaxInstances()
         ' Cerco il primo indice di istanza libero
         Dim nTmp As Integer = GetMainPrivateProfileInt(S_GENERAL, K_INSTANCES, 0)
         m_nInstance = 1
         Dim nMask As Integer = 1
         While (nTmp And nMask) <> 0 And m_nInstance <= MAX_INST
            m_nInstance += 1
            nMask *= 2
         End While
         ' Se l'indice supera il massimo
         If m_nInstance > nMaxInst Then
            ' porto in primo piano la prima istanza
            Dim bFound As Boolean = False
            ' processi del programma a 32 bit
            Dim localProc As Process() = Process.GetProcessesByName("SupervisorR32")
            For Each p As Process In localProc
               If p.Id <> Process.GetCurrentProcess().Id Then
                  bFound = True
                  ShowWindow(p.MainWindowHandle, 1)
                  Exit For
               End If
            Next
            ' se non trovati processi a 32 bit provo a 64 bit
            If Not bFound Then
               localProc = Process.GetProcessesByName("SupervisorR64")
               For Each p As Process In localProc
                  If p.Id <> Process.GetCurrentProcess().Id Then
                     bFound = True
                     ShowWindow(p.MainWindowHandle, SW.RESTORE)
                     Exit For
                  End If
               Next
            End If
            ' esco dal programma
            End
         End If
         ' Aggiorno stato istanze attive
         nTmp += (1 << (m_nInstance - 1))
         WriteMainPrivateProfileString(S_GENERAL, K_INSTANCES, nTmp.ToString())
      End If
   End Sub

   Friend Function GetKeyOption(nKeyOpt As KEY_OPT) As Boolean
      Return ((m_nKeyOptions And nKeyOpt) <> 0)
   End Function

   Friend Function GetMaxInstances() As Integer
      ' Leggo il massimo numero di istanze ammesse
      ' Dim nMaxInst As Integer = GetMainPrivateProfileInt(S_GENERAL, K_MAXINST, 1)
      Return 1          ' Max(1, Min(nMaxInst, MAX_INST))
   End Function

   Friend Sub Close()
      '' Terminazione generale di EgtInterface
      'EgtExit()
      ' Aggiorno istanze usate
      m_objMutex.WaitOne(1000)
      Dim nTmp As Integer = GetMainPrivateProfileInt(S_GENERAL, K_INSTANCES, 0)
      nTmp -= (1 << (m_nInstance - 1))
      WriteMainPrivateProfileString(S_GENERAL, K_INSTANCES, nTmp.ToString())
      m_objMutex.ReleaseMutex()
      ' Rilascio mutex
      If Not IsNothing(m_objMutex) Then m_objMutex.Close()
   End Sub

#End Region    ' METHODS

End Class