Imports System.IO
Imports DD_LIB_Standards
Module modMySettings
    Dim ConfigPath As String = Path.Combine(Application.UserAppDataPath(), "UserConfig.xml")

    Public Function LoadMyConfig()
        Dim rowresult As String = ""
        Try
            Dim DT As DataTable
            'if file doesn't exist, create the file with its default xml table
            If Not File.Exists(ConfigPath) Then
                DT = CreateConfigTable()
                DT.WriteXml(ConfigPath)
            End If
            DT = GetTablefromXML()
            For Each Row As DataRow In DT.Rows
                rowresult &= Row.Item("ConfigName")
                Select Case Row.Item("ConfigName")
                    Case "MyConnectionString"
                        Dim connstring As String
                        'Den ConnectonString mit verschlüsseltem PW laden
                        Dim csb As New SqlClient.SqlConnectionStringBuilder
                        csb.ConnectionString = Row.Item("Value")
                        If csb.ConnectionString.Contains("Password=") Then
                            'SA-Auth
                            'Jetzt das Passwort entschlüsseln
                            Dim PWplainText As String
                            Dim wrapper As New clsEncryption("!35452didalog=")
                            ' DecryptData throws if the wrong password is used.
                            Try
                                PWplainText = wrapper.DecryptData(csb.Password)
                            Catch ex As Exception
                                Logger.Info("- the Password '" & csb.Password & "' could not be decrypted", False)
                                PWplainText = csb.Password
                            End Try
                            connstring = Row.Item("Value").ToString.Replace(csb.Password, PWplainText)
                        Else
                            'Win-Auth
                            connstring = Row.Item("Value").ToString
                        End If
                        MyConnectionString = connstring
                    Case "LogErrorsOnly"
                        LogErrorsOnly = CBool(Row.Item("Value"))
                    Case "HotkeyFunctionKey"
                        HotkeyFunctionKey = Row.Item("Value")
                    Case "HotkeySearchKey"
                        HotkeySearchKey = Row.Item("Value")
                End Select
            Next
            If rowresult.Contains("HotkeyFunctionKey") = False Then
                Dim newRow As DataRow = DT.NewRow()
                newRow("ConfigName") = "HotkeyFunctionKey"
                newRow("Value") = "strg"
                DT.Rows.Add(newRow)
                DT.WriteXml(ConfigPath)

            End If
            If rowresult.Contains("HotkeySearchKey") = False Then
                Dim newRow As DataRow = DT.NewRow()
                newRow("ConfigName") = "HotkeySearchKey"
                newRow("Value") = "f"
                DT.Rows.Add(newRow)
                DT.WriteXml(ConfigPath)
            End If
            Return True
        Catch ex As Exception
            MsgBox("Error in MySettings-LoadMyConfig" & vbNewLine & ex.Message, MsgBoxStyle.Critical)
            Return False
        End Try
    End Function
    Private Function GetTablefromXML()
        Try
            Dim DS As New DataSet
            DS.ReadXml(ConfigPath)
            Return DS.Tables(0)
        Catch ex As Exception
            MsgBox("Error in GetTablefromXML" & vbNewLine & ex.Message, MsgBoxStyle.Critical)
            Return Nothing
        End Try

    End Function
    Private Function CreateConfigTable() As DataTable
        Try
            ' Create sample Customers table, in order
            ' to demonstrate the behavior of the DataTableReader.
            Dim table As New DataTable
            table.TableName = "MyConfig"

            ' Create two columns, ID and Name.
            Dim idColumn As DataColumn = table.Columns.Add("ID", _
                GetType(System.Int32))

            idColumn.AutoIncrement = True
            idColumn.AutoIncrementSeed = 0
            idColumn.AutoIncrementStep = 1
            table.Columns.Add("ConfigName", GetType(System.String))
            table.Columns.Add("Value", GetType(System.String))
            'Set the ID column as the primary key column.
            table.PrimaryKey = New DataColumn() {idColumn}
            Dim newRow As DataRow = table.NewRow()
            newRow("ConfigName") = "MyConnectionString"
            newRow("Value") = ""
            table.Rows.Add(newRow)
            Dim newRow1 As DataRow = table.NewRow()
            newRow1("ConfigName") = "LogErrorsOnly"
            newRow1("Value") = "True"
            table.Rows.Add(newRow1)
            Dim newRow2 As DataRow = table.NewRow()
            newRow2("ConfigName") = "HotkeyFunctionKey"
            newRow2("Value") = "strg"
            table.Rows.Add(newRow2)
            Dim newRow3 As DataRow = table.NewRow()
            newRow3("ConfigName") = "HotkeySearchKey"
            newRow3("Value") = "f"
            table.Rows.Add(newRow3)
            table.AcceptChanges()
            Return table
        Catch ex As Exception
            MsgBox("Error in CreateConfigTable" & vbNewLine & ex.Message, MsgBoxStyle.Critical)
            Return Nothing
        End Try
    End Function
    Public Function SaveConfigValue(name As String, value As String)
        Try
            Dim DT As DataTable
            DT = GetTablefromXML()

            For Each Row As DataRow In DT.Rows
                If Row.Item("ConfigName") = name Then
                    Row.Item("Value") = value
                End If
            Next
            DT.AcceptChanges()
            DT.WriteXml(ConfigPath)
        Catch ex As Exception
            MsgBox("Error in SaveConfigValue" & vbNewLine & ex.Message, MsgBoxStyle.Critical)
            Return False
        End Try
        Return True

    End Function
End Module