Imports DigitalData.Modules.Logging
Imports DigitalData.Modules.EDMIFileOps.EDMIServiceReference
Imports System.ServiceModel
Imports System.IO

Public Class Document
    Private _logger As Logger
    Private _logConfig As LogConfig
    Private _channelFactory As ChannelFactory(Of IEDMServiceChannel)
    Private _channel As IEDMServiceChannel
    Public Sub New(LogConfig As LogConfig, EDMI_ServiceAdress As String)
        _logger = LogConfig.GetLogger()
        _logConfig = LogConfig

        Try
            Dim binding As New NetTcpBinding()
            binding.Security.Mode = SecurityMode.Transport
            binding.Security.Transport.ClientCredentialType = TcpClientCredentialType.Windows
            binding.MaxReceivedMessageSize = 2147483647
            binding.MaxBufferSize = 2147483647
            binding.MaxBufferPoolSize = 2147483647
            binding.MaxConnections = 10000
            binding.ReaderQuotas.MaxArrayLength = 2147483647
            binding.ReaderQuotas.MaxStringContentLength = 2147483647
            Dim endpointAddress = New EndpointAddress(EDMI_ServiceAdress)
            _channelFactory = New ChannelFactory(Of IEDMServiceChannel)(binding, endpointAddress)
            Connect2NetService()
        Catch ex As Exception
            _logger.Error(ex)
        End Try
    End Sub

    Private Function Connect2NetService()
        Try
            _channel = Nothing
            _channel = _channelFactory.CreateChannel()
            _logger.Info("Successfully connected to EDM_Network Service")
            AddHandler _channel.Faulted, AddressOf Reconnect
            _channel.Open()
            Return True
        Catch ex As Exception
            _logger.Error(ex)
            Return True
        End Try
    End Function
    Private Sub Reconnect()
        _channel.Abort()
        Connect2NetService()
    End Sub

    ''' <summary>
    ''' Imports a file by filename
    ''' </summary>
    ''' <param name="FilePath">The filename to import</param>
    ''' <returns>A document object</returns>
    Public Async Function ImportFileAsync(FilePath As String) As Task(Of DocumentResult)
        Try
            Return Await CreateDocument(FilePath)
        Catch ex As Exception
            _logger.Error(ex)
            Throw ex
        End Try
    End Function

    Public Async Function SetFileIndex(DocObject As DocumentObject, Syskey As String, Value As String) As Task
        Try
            Dim oResult As DocumentResult = _channel
        Catch ex As Exception
            _logger.Error(ex)
            Throw ex
        End Try
    End Function

    Private Async Function CreateDocument(FilePath As String) As Task(Of DocumentResult)
        Try
            Dim oContents As Byte() = File.ReadAllBytes(FilePath)
            Dim oInfo As New FileInfo(FilePath)
            Dim oName As String = oInfo.Name
            Dim oExtension As String = oInfo.Extension.Substring(1)

            Dim oDocObject = Await _channel.CreateFileAsync(oName, oContents)
            Return oDocObject
        Catch ex As Exception
            _logger.Error(ex)
            Throw ex
        End Try
    End Function

    'Public Async Function New_EDMI_File(oFILENAME As String, oUserName As String) As Task(Of String)
    '    Try
    '        Dim oFileGUID As DocumentResult = Await CreateDocument(oFILENAME)
    '        Dim oFileRecordID = Nothing
    '        If Not IsNothing(oFileGUID) Then
    '            Dim oSQL = $"SELECT FNEDMI_SET_RECORD(""TBEDMI_ADRESSE"",""{oUserName}"",FALSE,NULL,"""",'{oFileGUID._ContainerId}') FROM rdb$database;"
    '            oFileRecordID = Await New_EDMIFile_CreateDB_Record(oSQL)
    '        End If
    '        Return oFileRecordID
    '    Catch ex As Exception
    '        _logger.Error(ex)
    '        Return Nothing
    '    End Try
    'End Function

    'Private Async Function New_EDMIFile_CreateDB_Record(FBCommand As String) As Task(Of String)
    '    Try
    '        Dim oTimeTotal As TimeSpan
    '        Dim oStopwatch As New Stopwatch()
    '        oStopwatch.Start()
    '        Dim oRecord_ID As String
    '        Dim oRequestName = Await _channel.CreateDatabaseRequestAsync("CreateEDMFileRecord", True)
    '        Dim oResult = Await _channel.ReturnScalarAsync(FBCommand)

    '        oTimeTotal = oStopwatch.Elapsed
    '        oStopwatch.Reset()

    '        Await _channel.CloseDatabaseRequestAsync()

    '        If Not oResult.OK Then
    '            _logger.Warn($"Unexpected error while executing command: {oResult.ErrorMessage}")
    '        Else
    '            oRecord_ID = oResult.Scalar
    '            _logger.Debug($"SCALAR (SERVICE) {FBCommand} - TIME: {(oTimeTotal.ToString)}")
    '        End If
    '        Return oRecord_ID
    '    Catch ex As Exception
    '        _logger.Error(ex)
    '        Return Nothing
    '    End Try
    'End Function
    Public Async Function Load_EDMIFile_2TempPath(oEDMIFile_GUID As String) As Task(Of String)
        'Try
        '    Dim oResult As EDMIServiceReference.ContainerResult = Await _channel.GetFileAsync(oEDMIFile_GUID)
        '    Dim oTempPath = Path.Combine(Path.GetTempPath(), "EDMI_FileContainer")
        '    Directory.CreateDirectory(oTempPath)
        '    Dim oFilePath = Path.Combine(oTempPath, $"{oResult.Container.FileId}.{oResult.Container.Extension}")
        '    File.WriteAllBytes(oFilePath, oResult.Container.Contents)
        '    ' Process.Start(oTempPath)
        '    Return oTempPath
        'Catch ex As Exception
        '    _logger.Error(ex)
        '    Return Nothing
        'End Try
    End Function
End Class