Imports System
Imports System.Data
Imports System.Data.OracleClient

Namespace Avaloq

    Public Class SST
        Const queryString As String = "k.tkb$out_dsp_in#.edoka_in"
        Const queryStringOpenSession As String = "k.session#.open_session"
        Const queryStringCloseSession As String = "k.session#.close_session"
        Const avqOracleUser As String = "TKB$I_EDOKA"
        Const avqSecUserId As Integer = 34
        Const avqBuId As Integer = 1

        Const edkDokBezeichnungKey As String = "edk_bez"
        Const edkDokBezeichnungDflt As String = "Antworttalon"
        Dim connStrg As String


        Private _hasErrors As Boolean
        Private _edkDokBezeichnung As String
        Private _qrcode As String
        Private _hasQrCode As Boolean
        Private _bpnr As String



        Public Sub New()
            oread = System.IO.File.OpenText(DivFnkt.ApplicationPath + "avaloqconn.cfg")
            connStrg = oread.ReadLine
            oread.Close()

        End Sub


        Public ReadOnly Property hasErrors() As Boolean
            Get
                Return _hasErrors
            End Get
        End Property

        Public ReadOnly Property edkDokBezeichnung As String
            Get
                Return _edkDokBezeichnung
            End Get
        End Property

        Public Property hasQrCode As Boolean
            Get
                Return _hasQrCode
            End Get
            Set(value As Boolean)
                _hasQrCode = value
            End Set
        End Property

        Public Sub Prepare(ByVal BPNr As String, ByVal Instructions As String)
            _hasErrors = False
            _bpnr = BPNr
            _qrcode = Instructions

            If Len(_qrcode) > 0 Then
                _hasQrCode = True

                'EDOKA-Dokument-Bezeichnung auslesen
                Try
                    For Each pairs As String In _qrcode.Split(";"c)
                        Dim values As String() = pairs.Split(":"c)
                        If values(0) = edkDokBezeichnungKey Then
                            _edkDokBezeichnung = values(1)
                        End If
                    Next
                Catch ex As Exception
                    _hasErrors = True
                    _edkDokBezeichnung = edkDokBezeichnungDflt
                End Try
            Else
                _hasErrors = True
                _edkDokBezeichnung = edkDokBezeichnungDflt
            End If
        End Sub

        Public Sub SendData()

            If Len(_bpnr) = 0 Or _hasQrCode = False Then
                _hasErrors = True
                Return
            End If


            _hasErrors = True 'wird bei erfolgreicher Übermittlung auf false gesetellt

            Dim dataReader As OracleDataReader
            Dim connectionSession As New OracleConnection

            connectionSession.ConnectionString = connStrg
            'OracleConnection.ClearAllPools()
            Dim command As OracleCommand = connectionSession.CreateCommand()

            command.Parameters.Clear()

            command.CommandText = queryStringOpenSession
            command.CommandType = CommandType.StoredProcedure
            command.Parameters.Add(New OracleParameter("i_sec_user_id", OracleType.Int32)).Value = avqSecUserId
            command.Parameters.Add(New OracleParameter("i_oracle_user", OracleType.VarChar)).Value = avqOracleUser
            command.Parameters.Add(New OracleParameter("i_bu_id", OracleType.Int32)).Value = avqBuId
            Try
                connectionSession.Open()
                'connectionSession.Open()
                'connectionSession.open
                'dataReader = 
                command.ExecuteReader()
                'dataReader.Read()
                'dataReader.Close()
                'dataReader.Dispose()
            Catch ex As Exception
                If connectionSession.State = ConnectionState.Closed Then
                    connectionSession.Open()
                    command.ExecuteReader()
                End If
            End Try


            command.Parameters.Clear()

            command.CommandText = queryString
            command.CommandType = CommandType.StoredProcedure
            command.Parameters.Add(New OracleParameter("i_bp_nr", OracleType.VarChar)).Value = _bpnr
            command.Parameters.Add(New OracleParameter("i_instructions", OracleType.VarChar)).Value = _qrcode
            command.Parameters.Add(New OracleParameter("o_ret_val", OracleType.VarChar, 20)).Direction = ParameterDirection.Output

            Try
                If connectionSession.State = ConnectionState.Open Then
                    'nothing
                Else
                    connectionSession.Open()
                End If


                dataReader = command.ExecuteReader()
                dataReader.Read()

                Dim result As String = command.Parameters.Item(2).Value
                If result = "OK" Then
                    _hasErrors = False
                Else
                    _hasErrors = True
                End If

                dataReader.Close()
                dataReader.Dispose()
                connectionSession.Close()
                connectionSession.Dispose()
                'ACHTUNG 
                connectionSession = Nothing
                dataReader = Nothing
                command = Nothing

                'ACHTUNG

            Catch ex As Exception
                Console.WriteLine(ex.Message)
                If connectionSession.State = ConnectionState.Open Then
                    command.Parameters.Clear()
                    command.CommandText = "k.session#.close_session"
                    command.CommandType = CommandType.StoredProcedure
                    Try
                        dataReader = command.ExecuteReader()
                        dataReader.Read()
                        dataReader.Close()
                        dataReader.Dispose()
                    Catch ex1 As Exception

                    End Try

                    command.Dispose()
                    connectionSession.Close()
                    connectionSession.Dispose()
                    Console.WriteLine(connectionSession.State)
                End If
            End Try
        End Sub
    End Class



End Namespace