Public Class Helpers
    Public Shared Function EncodeEnvelopeReceiverId(pEnvelopeUuid As String, pReceiverSignature As String) As String
        Dim oString = $"{pEnvelopeUuid}::{pReceiverSignature}"
        'TODO: Verschlüsseln
        Return oString
    End Function

    Public Shared Function DecodeEnvelopeReceiverId(pEnvelopeReceiverId As String) As Tuple(Of String, String)
        Dim oSplit = pEnvelopeReceiverId.Split("::")
        'TODO: Entschlüsseln
        Return New Tuple(Of String, String)(oSplit(0), oSplit(1))
    End Function

    Public Shared Function GetEnvelopeURL(pHost As String, pEnvelopeUuid As String, pReceiverSignature As String) As String

        Dim oEnvelopeUserReference As String = EncodeEnvelopeReceiverId(pEnvelopeUuid, pReceiverSignature)

        Dim oURL As String = ""
        oURL = String.Format("{0}/EnvelopeKey/{1}", pHost.Trim(), oEnvelopeUserReference)
        Return oURL

    End Function
End Class