Imports System.IO

Class sWLANTicket


    Public Shared Function printTicket(Optional AVISO As VERAG_PROG_ALLGEMEIN.cAviso = Nothing) As Boolean
        Dim usr As String = ""
        Dim pwd As String = ""
        If genTicket(usr, pwd) Then

            Dim rpt As New rptWLANTicket()

            rpt.TextBox4.Text = Now.ToShortDateString & " " & Now.ToShortTimeString
            rpt.TextBox9.Text = Now.AddHours(24).ToShortDateString & " " & Now.AddHours(24).ToShortTimeString
            rpt.TextBox1.Text = usr
            rpt.TextBox5.Text = pwd
            rpt.TextBox11.Text = "FrontOffice_Guest"

            If AVISO IsNot Nothing Then
                rpt.TextBox13.Text = AVISO.LKW_Nr
                rpt.TextBox15.Text = AVISO.Frächter
            End If

            Dim printer = SDL.cProgramFunctions.getDruckernameBySearch("INFO", True)
            If printer = "" Then printer = SDL.cProgramFunctions.getDruckernameBySearch("EPSON", True)
            If printer <> "" Then
                SDL.cProgramFunctions.printRpt(rpt, printer, True)
            Else
                SDL.cProgramFunctions.showRpt(rpt, "AVISO", False)
            End If

            Return True
        End If
        Return False
    End Function

    Public Shared Function genTicket(Optional ByRef user As String = "", Optional ByRef pwd As String = "") As Boolean
        'Dim a, b As String
        user = UsernamePasswordGenerator("u")
        pwd = UsernamePasswordGenerator("p")
        Return AddGastWLANUser(user, pwd)
        '        MsgBox(a & vbCrLf & b)
    End Function

    Public Shared Function UsernamePasswordGenerator(x As String, Optional ByVal Zeichenanzahl As Integer = 6) As String ' wenn u dann Username, sonst Password
        Dim str As String
        Dim up As String
        If x = "u" Then
            str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
        Else
            str = "0123456789"
        End If

        Dim r As New Random
        For i As Integer = 0 To Zeichenanzahl - 1
            up &= str(r.Next(0, str.Length)).ToString
        Next

        Return up
        'MsgBox(up)

    End Function

    Public Shared Function AddGastWLANUser(Username As String, Optional ByVal Password As String = "verag1", Optional ByVal Zugangsdaten As String = "WLANAdmin@192.168.0.97 -pw 6a0D5Ys93uugLi3uVciV", Optional ByVal AblaufZeit As Integer = 2)
        Try
            If Not File.Exists(Application.StartupPath & "\Resources\WLAN\AddWLANUser.bat") Then File.Create(Application.StartupPath & "\Resources\WLAN\AddWLANUser.bat")
            Dim AddWLANUser As String = Application.StartupPath & "\Resources\WLAN\AddWLANUser.bat"
            Dim exptime As String = Date.Now.AddHours(AblaufZeit).ToString("yyyy-MM-dd HH:mm")
            Dim battext As String = ""
            battext = "(
                        echo configure terminal
                        echo dynamic-guest username " & Username & " 
                        echo password " & Password & "
                        echo expire-time " & exptime & "
                        echo group Fahrer_Gruppe

                        echo exit
                        echo exit
                        echo exit
                        ) | plink -ssh " & Zugangsdaten & "
                        exit"

            WriteToFile(AddWLANUser, battext)
            Threading.Thread.Sleep(1500)

            Dim Add As New Process
            Add.StartInfo.FileName = Application.StartupPath & "\Resources\WLAN\RunNHide.exe"
            Add.StartInfo.Arguments = AddWLANUser
            Add.Start()
            Return True
        Catch ex As Exception
            MsgBox(ex.Message & ex.StackTrace)
            Return False
        End Try
    End Function


    Public Shared Function DeleteGastWLANUser(Username As String, Optional ByVal Zugangsdaten As String = "WLANAdmin@192.168.0.97 -pw 6a0D5Ys93uugLi3uVciV")
        Try

            If Not File.Exists(Application.StartupPath & "\Resources\WLAN\DELWLANUser.bat") Then File.Create(Application.StartupPath & "\Resources\WLAN\DELWLANUser.bat")
            Dim DELWLANUser As String = Application.StartupPath & "\Resources\WLAN\DELWLANUser.bat"
            Dim battext As String = ""
            battext = "(
                        echo configure terminal

                        echo no dynamic-guest " & Username & "


                        echo exit
                        echo exit
                        echo exit
                        ) | plink -ssh " & Zugangsdaten & "
                        exit"

            WriteToFile(DELWLANUser, battext)
            Threading.Thread.Sleep(1500)

            Dim del As New Process
            del.StartInfo.FileName = Application.StartupPath & "\Resources\WLAN\RunNHide.exe"
            del.StartInfo.Arguments = DELWLANUser
            del.Start()

            'Process.Start(Application.StartupPath & "\RunNHide.exe " & DELWLANUser)
            Return True
        Catch ex As Exception
            MsgBox(ex.Message & ex.StackTrace)
            Return False
        End Try
    End Function

    Public Shared Function WriteToFile(filepath As String, texttowrite As String)
        Try
            Dim objWriter As New System.IO.StreamWriter(filepath)
            objWriter.Write(texttowrite)
            objWriter.Close()
            Return True
        Catch ex As Exception
            MsgBox(filepath & vbCrLf & " konnte nicht geschrieben werden." & vbCrLf & ex.Message)
            Return False
        End Try
    End Function

End Class