Imports System.Xml
Imports System.Security.Principal

Public Class FrmMain
    Implements mMain.SingleInstance.ISingleInstanceForm

    Public ReadOnly Property hWnd() As System.IntPtr Implements DokMD.mMain.SingleInstance.ISingleInstanceForm.Handle
        Get
            Return Handle
        End Get
    End Property

    Dim users As New DataSet
    Dim userrechte As Integer

    Public Event WndProc2(ByVal m As System.Windows.Forms.Message, ByRef Cancel As Boolean) Implements mMain.SingleInstance.ISingleInstanceForm.WndProc

    Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
        Dim bCancel As Boolean = False

        RaiseEvent WndProc2(m, bCancel)
        If Not bCancel Then MyBase.WndProc(m)
    End Sub

    Public Sub HandleCommand(ByVal strCmd As String) Implements DokMD.mMain.SingleInstance.ISingleInstanceForm.HandleCommand
        Dim arrCmd() As String
        Me.BringToFront()
        Try
            'arrCmd = SerialHelper.DeserializeFromBase64String(strCmd)
            'TKBLib.Errorhandling.TraceHelper.Msg("Schnittstelle", "Agrument übergeben: " + arrCmd(0), TraceLevel.Info)
            'HandleCommand(arrCmd)
        Catch ex As Exception
            '        HandleCommand(New String() {strCmd})
        Finally
            Erase arrCmd
        End Try
    End Sub


    Private Sub FrmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim c As New EDOKA.DB_Connection
        Globals.conn.scoDBConnection.ConnectionString = Globals.sConnectionString
        Globals.fMehrfachdruck = New frmMehrfachdruck()
        Globals.fMehrfachdruck.MdiParent = Me
        Globals.fMehrfachdruck.Visible = False
        Globals.fMehrfachdruck.Hide()
        Globals.fMehrfachdruck.InitForm()

        If check_user() = False Then
            Me.Close()
            Exit Sub
        End If
        If userrechte = 1 Then Me.BenutzerverwaltungToolStripMenuItem.Visible = True Else Me.BenutzerverwaltungToolStripMenuItem.Visible = False

        Get_Params()





        Dim f As New frmMD
        f.MdiParent = Me
        f.Show()
    End Sub
    Function check_user() As Boolean
        Dim user As String = Get_Username()
        If Not System.IO.File.Exists(Application.StartupPath + "\users.xml") Then
            MsgBox("User-Datenbank ist nicht vorhanden und wird neu erstellt", MsgBoxStyle.Critical)
            Dim s As String = InputBox("Geben Sie das Passwort ein:")
            If s <> "selbstanzeigen" Then
                Return False
            End If
            create_usertable(user)
            Return False
        End If

        Globals.Userdata.ReadXml(Application.StartupPath + "\users.xml")
        For Each dr As DataRow In Globals.Userdata.Tables(0).Rows
            dr.Item(0) = Crypto.DecryptText(dr.Item(0).ToString, "Selbstanzeigen")
        Next

        userrechte = -1
        For Each dr As DataRow In Globals.Userdata.Tables(0).Rows
            If UCase(user) = UCase(dr.Item(0)) Then
                If dr.Item(1) = 1 Then userrechte = 1 Else userrechte = 0
                Globals.Mitarbeiternr = dr.Item(2)
                Globals.tgnummer = user
                Exit For
            End If
        Next
        If userrechte = -1 Then
            MsgBox("Sie sind nicht berechtig, die Applikation zu verwenden.", MsgBoxStyle.Exclamation)
            Return False
        End If
        Return True


    End Function

    Dim ouser As New WindowsPrincipal(WindowsIdentity.GetCurrent)
    Private Function Get_Username() As String
        With ouser.Identity.Name
            Return (.Substring(.IndexOf("\") + 1))
        End With
    End Function
    Private Sub BeendenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BeendenToolStripMenuItem.Click
        Me.Close()
    End Sub

    Sub Get_Params()
        Dim xmldoc As New XmlDocument
        xmldoc.Load(Application.StartupPath + "\Parameters.XML")
        Globals.Packagegroesse = xmldoc.SelectSingleNode("/Configuration/Packagegroesse").InnerText
        Globals.DelayTime = xmldoc.SelectSingleNode("/Configuration/DelayTime").InnerText

    End Sub
    Sub create_usertable(ByVal username As String)
        Dim ds As New DataSet
        ds.Tables.Add("Users")
        ds.Tables(0).Columns.Add("TGNummer")
        ds.Tables(0).Columns.Add("Rolle")
        ds.Tables(0).Columns.Add("EDOKA_MA_Nr")
        Dim dr As DataRow = ds.Tables(0).NewRow
        dr.Item(0) = Crypto.EncryptText(username, "Selbstanzeigen")
        dr.Item(1) = 1
        dr.Item(2) = 0
        ds.Tables(0).Rows.Add(dr)
        ds.WriteXml(Application.StartupPath + "\users.xml")
    End Sub
    Private Sub BenutzerverwaltungToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BenutzerverwaltungToolStripMenuItem.Click
        Dim f As New frmBenutzer
        f.MdiParent = Me
        f.Show()
    End Sub

    Private Sub NeuesDetailfensterToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NeuesDetailfensterToolStripMenuItem.Click
        Dim f As New frmMD
        f.MdiParent = Me
        f.Show()
    End Sub

    Private Sub ToolStripButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton1.Click
        Me.Close()
    End Sub




End Class