Imports System.Data.Common
Imports System.Data.SqlClient
Imports DigitalData.Modules.Base
Public Class ReceiverModel
    Inherits BaseModel

    Public Sub New(pState As State)
        MyBase.New(pState)
    End Sub

    Private Function ToReceiver(pRow As DataRow) As EnvelopeReceiver
        Return New EnvelopeReceiver() With {
            .Id = pRow.ItemEx("GUID", 0),
            .Email = pRow.ItemEx("EMAIL_ADDRESS", ""),
            .Name = pRow.ItemEx("NAME", ""),
            .Sequence = pRow.ItemEx("SEQUENCE", 0)
        }
    End Function

    Public Function TestReceiverExists(pReceiver As EnvelopeReceiver) As Boolean
        Try
            Dim oGuid = Database.GetScalarValue($"SELECT COALESCE(GUID, 0) FROM TBSIG_RECEIVER WHERE EMAIL_ADDRESS = '{pReceiver.Email}'")
            pReceiver.Id = oGuid
            Return oGuid > 0
        Catch ex As Exception
            Logger.Error(ex)
            Return False
        End Try
    End Function

    Public Function Insert(pReceiver As EnvelopeReceiver, pTransaction As SqlTransaction) As Boolean
        Try
            Dim oSql As String = "INSERT INTO [dbo].[TBSIG_RECEIVER]
               ([EMAIL_ADDRESS]
               ,[SIGNATURE])
             VALUES
               (@EMAIL
               ,@SIGNATURE)"

            Dim oCommand = New SqlCommand(oSql)
            oCommand.Parameters.Add("EMAIL", SqlDbType.NVarChar).Value = pReceiver.Email
            oCommand.Parameters.Add("SIGNATURE", SqlDbType.NVarChar).Value = pReceiver.Signature

            Dim oResult = Database.ExecuteNonQuery(oCommand, pTransaction)
            If oResult = True Then
                pReceiver.Id = GetReceiverId(pReceiver.Email, pTransaction)
            Else
                Return False
            End If

            Return True
        Catch ex As Exception
            Logger.Error(ex)
            Return False
        End Try
    End Function

    Public Function Update(pReceiver As EnvelopeReceiver, pTransaction As SqlTransaction) As Boolean
        Try
            ' TODO: Update ENVELOPE_RECEIVER instead
            Dim oSql As String = "UPDATE [dbo].[TBSIG_USER_RECEIVER]
                SET [NAME] = @NAME
                  ,[COMPANY_NAME] = @COMPANY
                  ,[JOB_TITLE] = @JOB
             WHERE RECEIVER_ID = @RECEIVER_ID"

            Dim oCommand = New SqlCommand(oSql)
            oCommand.Parameters.Add("NAME", SqlDbType.NVarChar).Value = pReceiver.Name
            oCommand.Parameters.Add("COMPANY", SqlDbType.NVarChar).Value = pReceiver.Company
            oCommand.Parameters.Add("JOB", SqlDbType.NVarChar).Value = pReceiver.JobTitle
            oCommand.Parameters.Add("RECEIVER_ID", SqlDbType.Int).Value = pReceiver.Id
            oCommand.Parameters.Add("USER_ID", SqlDbType.Int).Value = pReceiver.Id

            Return Database.ExecuteNonQuery(oCommand, pTransaction)
        Catch ex As Exception
            Logger.Error(ex)
            Return False
        End Try
    End Function

    Public Function Unassign(pEnvelope As Envelope, pTransaction As SqlTransaction) As Boolean
        Try
            Return Database.ExecuteNonQuery($"DELETE FROM [dbo].[TBSIG_ENVELOPE_RECEIVER] WHERE [ENVELOPE_ID] = {pEnvelope.Id}", pTransaction)
        Catch ex As Exception
            Logger.Error(ex)
            Return False
        End Try
    End Function

    Public Function Assign(pEnvelope As Envelope, pReceiver As EnvelopeReceiver, pTransaction As SqlTransaction) As Boolean
        Dim oSql = "INSERT INTO [dbo].[TBSIG_ENVELOPE_RECEIVER]
                   ([ENVELOPE_ID]
                   ,[RECEIVER_ID]
                   ,[PRIVATE_MESSAGE]
                   ,[ACCESS_CODE]
                   ,[NAME]
                   ,[JOB_TITLE]
                   ,[COMPANY_NAME]
                   ,[SEQUENCE])
             VALUES
                   (@ENVELOPE_ID
                   ,@RECEIVER_ID
                   ,@MESSAGE
                   ,@ACCESS_CODE
                   ,@NAME
                   ,@JOB
                   ,@COMPANY
                   ,@SEQUENCE)"

        Dim oCommand As New SqlCommand(oSql)
        oCommand.Parameters.Add("ENVELOPE_ID", SqlDbType.NVarChar).Value = pEnvelope.Id
        oCommand.Parameters.Add("RECEIVER_ID", SqlDbType.NVarChar).Value = pReceiver.Id
        oCommand.Parameters.Add("MESSAGE", SqlDbType.NVarChar).Value = pReceiver.PrivateMessage
        oCommand.Parameters.Add("ACCESS_CODE", SqlDbType.NVarChar).Value = pReceiver.AccessCode
        oCommand.Parameters.Add("NAME", SqlDbType.NVarChar).Value = pReceiver.Name
        oCommand.Parameters.Add("JOB", SqlDbType.NVarChar).Value = pReceiver.JobTitle
        oCommand.Parameters.Add("COMPANY", SqlDbType.NVarChar).Value = pReceiver.Company
        oCommand.Parameters.Add("SEQUENCE", SqlDbType.NVarChar).Value = pReceiver.Sequence

        Return Database.ExecuteNonQuery(oCommand, pTransaction)
    End Function

    Public Function List(pEnvelopeId As Integer) As IEnumerable(Of EnvelopeReceiver)
        Try
            Dim oSql = $"SELECT * FROM [dbo].[VWSIG_ENVELOPE_RECEIVERS] WHERE ENVELOPE_ID = {pEnvelopeId}"
            Dim oTable = Database.GetDatatable(oSql)

            Return oTable?.Rows.Cast(Of DataRow).
                Select(AddressOf ToReceiver).
                ToList()

        Catch ex As Exception
            Logger.Error(ex)
            Return Nothing
        End Try
    End Function

    Public Function Delete(pReceiverId As Integer, pDocumentId As Integer) As Boolean
        Try
            Dim oSql = $"DELETE FROM TBSIG_DOCUMENT_RECEIVER WHERE RECEIVER_ID = {pReceiverId} AND DOCUMENT_ID = {pDocumentId}"
            Return Database.ExecuteNonQuery(oSql)

        Catch ex As Exception
            Logger.Error(ex)
            Return False

        End Try
    End Function

    Private Function GetReceiverId(pEmailAddress As String, pTransaction As SqlTransaction) As Integer
        Try
            Return Database.GetScalarValue($"SELECT GUID FROM TBSIG_RECEIVER WHERE EMAIL_ADDRESS = '{pEmailAddress}'", pTransaction)

        Catch ex As Exception
            Logger.Error(ex)
            Return Nothing
        End Try
    End Function
End Class