Imports System
Imports DigitalData.Modules.Logging
Imports DigitalData.Modules.Windream
Imports DigitalData.Modules.Config
Imports System.IO
Imports System.Text.RegularExpressions
Imports DigitalData.Modules.Database

Module ModuleMain
    Private _ArgumentLength As Integer
    Public _database As MSSQLServer
    Public oRegExArg As String

    Public oRegex As New Regex("([\s\S]+)\={([\s\S]+)}")

    Public Const CODE_SUCCESS = 0
    Public Const CODE_ERROR = 1

    Public Const MODE_OVERWRITE = "IMPO"
    Public Const MODE_VERSION = "IMPV"
    Public Const MODE_NACHINDEXIERUNG = "NI"

    Public Const PARAM_SOURCE = "-Source@"
    Public Const PARAM_MODE = "-Mode@"
    Public Const PARAM_TARGET = "-Target@"
    Public Const PARAM_WMTO = "-WMOT@"
    Public Const PARAM_INDEX = "-index@"

    Public Function Main(CommandLineArguments As String()) As Integer
        Dim oReturnResult As Integer
        Try
            oReturnResult = CODE_SUCCESS
            ' Console.WriteLine("Starting up WIDig...")
            Dim opath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData)
            Dim oLogConfig As New LogConfig(LogConfig.PathType.AppData, Nothing, "Console", "Digital Data", "WIDig")

            LOGCONFIG = oLogConfig
            LOGGER = LOGCONFIG.GetLogger
            InitUserConfig()
            LOGCONFIG.Debug = CONFIG.Config.LOG_DEBUG
            LOGGER = LOGCONFIG.GetLogger
            Dim oUserPW = GetUserPWPlain()

            System.Console.WriteLine($"Starting up WIDig...")

            If Connect2Windream(oUserPW) = False Then
                Throw New ApplicationException("Could not initialize windream")
            End If

            System.Console.WriteLine($"Windream initialized!")

            If InitDatabase() = False Then
                Throw New ApplicationException("Could not initialize DB")
            End If

            System.Console.WriteLine($"Database initialized!")

            If Load_DB_DAta() = False Then
                Throw New ApplicationException("Could not load Regex from Database")
            End If

            System.Console.WriteLine($"Regex loaded from Database!")

            If ParseArgs(CommandLineArguments) = False Then
                Throw New ApplicationException("Could not parse command line arguments")
            End If

            System.Console.WriteLine($"Command line arguments parsed!")

            If StreamORIndexFile() = False Then
                Throw New ApplicationException("Could not stream or index file")
            End If

            System.Console.WriteLine($"File indexed or streamed!")

            ' Brauchen Sie das überhaupt?
            If oErrorParse = True Or oErrorImport = True Then
                Throw New ApplicationException(oErrorMessage)

            End If

            Return CODE_SUCCESS
        Catch ex As Exception
            LOGGER.Warn("Could not process file because of an error: {0}", oErrorMessage)
            LOGGER.Warn("Error at Parse Stage: [{0}]", oErrorParse)
            LOGGER.Warn("Error at Import Stage: [{0}]", oErrorImport)
            LOGGER.Error(ex)

            Return CODE_ERROR
        End Try

    End Function
    Public Sub InitUserConfig()
        Dim oProgramDataPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData), "Digital Data", "WIDig")
        Dim oUserAppDataPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "Digital Data", "WIDig")
        CONFIG = New ConfigManager(Of ClassConfig)(LOGCONFIG, oUserAppDataPath, oProgramDataPath)
    End Sub
    Public Function InitDatabase() As Boolean
        If CONFIG.Config.ConnectionString.Length = 0 Then
            Return False
        End If

        Try
            _database = New MSSQLServer(LOGCONFIG, CONFIG.Config.ConnectionString)
            If _database.DBInitialized = True Then
                Return True
            Else
                Return False
            End If

        Catch ex As Exception
            LOGGER.Error(ex)
            Return False
        End Try
    End Function
    Public Function Load_DB_DAta()
        Try
            Dim oSql = "SELECT [REGEX] FROM [TBDD_FUNCTION_REGEX] WHERE FUNCTION_NAME = 'WM-INDEXER-INDEX_GROUP'"
            oRegExArg = _database.GetScalarValue(oSql, 120)
            If oRegExArg.Length = 0 Then
                oRegExArg = 0
            End If
            Return True
        Catch ex As Exception
            LOGGER.Error(ex)
            Return False
        End Try
    End Function
    Private Function Connect2Windream(oPW As String)
        Try
            WINDREAM = New Windream(LOGCONFIG, False, CONFIG.Config.WMDrive, CONFIG.Config.WMRelPath, True, CONFIG.Config.WMServer, CONFIG.Config.WMUsername, oPW, CONFIG.Config.Domain)
            If Not IsNothing(WINDREAM) Then
                If WINDREAM.SessionLoggedin = True Then
                    LOGGER.Debug("windream initialisiert")
                    Return True
                End If
            End If
            Return False
        Catch ex As Exception
            LOGGER.Warn("CHECKING WMConnectivity: " & ex.Message)
            Return False
        End Try
    End Function
    Private Function GetUserPWPlain()
        Try
            Dim oPassword As String
            Dim oEncryption As New ClassEncryption("!35452didalog=")
            If CONFIG.Config.WMUserPW = String.Empty Then
                oPassword = ""
            Else
                oPassword = oEncryption.DecryptData(CONFIG.Config.WMUserPW)
            End If

            Return oPassword
        Catch ex As Exception
            LOGGER.Warn("Error in GetUserPWPlain - the password [" & CONFIG.Config.WMUserPW & "] could not be decrypted", False)
            Return String.Empty
        End Try
    End Function
    Public Function ParseArgs(pArguments As String(), Optional pTest As Boolean = False)
        Dim oINDEXInfoStarted As Boolean = False
        Dim oINDEXInfotemp As String = ""
        Try
            If pArguments.Length <= 3 Then
                _ArgumentLength = pArguments.Length
                LOGGER.Warn($"Insufficient number of arguments [{pArguments.Length}]!")
                System.Console.WriteLine($"Insufficient number of arguments - {Now.ToString}")
                oErrorParse = True
                Return False
            End If

            Dim oCount As Integer = 0
            For Each oArg As String In pArguments
                LOGGER.Debug($"[{oCount}] {oArg}")
                oArg = oArg.Replace("""", "")
                If oArg.StartsWith(PARAM_SOURCE) Then
                    oSourceFile = oArg.Replace(PARAM_SOURCE, "")
                    If IsNumeric(oSourceFile) Then
                        LOGGER.Info($"SourceFile seems to be a DocID [{oSourceFile}]")
                        Dim oSQL = $"SELECT [dbo].[FNDD_GET_WINDREAM_FILE_PATH] ({oSourceFile})"
                        oSourceFile = _database.GetScalarValue(oSQL)
                    End If
                    If System.IO.File.Exists(oSourceFile) = False Then
                        LOGGER.Warn($"Parser@Sourcefile - File [{oSourceFile}] is not existing!")
                        oErrorMessage &= vbNewLine & $"Parser@Sourcefile - File [{oSourceFile}] is not existing!"
                        oErrorParse = True
                        Return False
                    End If

                ElseIf oArg.StartsWith(PARAM_MODE) Then
                    oMode = oArg.Replace(PARAM_MODE, "").ToUpper

                ElseIf oArg.StartsWith(PARAM_TARGET) Then
                    oTargetPath = oArg.Replace(PARAM_TARGET, "")
                    If IsNumeric(oTargetPath) Then
                        LOGGER.Info($"Target seems to be a DocID [{oTargetPath}]")
                        Dim oSQL = $"SELECT [dbo].[FNDD_GET_WINDREAM_FILE_PATH] ({oTargetPath})"
                        oSourceFile = _database.GetScalarValue(oSQL)
                    End If
                    Dim oWMFolder = System.IO.Path.GetDirectoryName(oTargetPath)
                    Dim oWindowsPath = oTargetPath
                    oExtension = Path.GetExtension(oWindowsPath)
                    Dim oNormalizePath = WINDREAM.GetNormalizedPath(oTargetPath)
                    If WINDREAM.TestFileExists(oTargetPath) = False Then
                        LOGGER.Info($"WMFile [{oTargetPath}] not existing!")
                    End If
                    If oMode = MODE_VERSION Then
                        Dim oWMCheckPath = WINDREAM.VersionWMFilename(oTargetPath, System.IO.Path.GetExtension(oTargetPath))
                        If oNormalizePath.ToUpper <> oWMCheckPath.ToString.ToUpper Then
                            LOGGER.Info($"Target [{oNormalizePath}] already existed!! - NewWMFilename [{oWMCheckPath}]")
                            oTargetPath = oWMCheckPath
                        End If
                    End If
                    'Checks and creates the path if necessary
                    WINDREAM.NewFolder(oTargetPath, oExtension)

                ElseIf oArg.StartsWith(PARAM_WMTO) Then
                    oWMObjecttype = oArg.Replace(PARAM_WMTO, "")
                    Dim oexists As Boolean = False
                    Dim myWMOTypes = WINDREAM.ObjectTypes
                    For Each otype As String In myWMOTypes
                        If oWMObjecttype = otype Then
                            oexists = True
                            Exit For
                        End If
                    Next
                    If oexists = False Then
                        LOGGER.Info($"WMObjekttype [{oWMObjecttype}] not existing!!")
                        oErrorMessage &= vbNewLine & $"WMObjekttype [{oWMObjecttype}] not existing!!"
                        Return False
                        oErrorParse = True
                    Else
                        WMIndices = WINDREAM.GetIndiciesByObjecttype(oWMObjecttype)
                    End If
                ElseIf oArg.StartsWith(PARAM_INDEX) Then
                    oINDEXInfotemp = oArg
                    oINDEXInfoStarted = True
                    oINDEXInfotemp = oINDEXInfotemp.Replace(PARAM_INDEX, "")

                Else
                    If oINDEXInfoStarted Then
                        oINDEXInfotemp &= " " & oArg
                    End If
                End If
                oCount += 1
            Next

            LOGGER.Debug("INDEXInfoTemp: [{0}]", oINDEXInfotemp)

            Dim oIndexparts As List(Of String) = oINDEXInfotemp.
                Split(New String() {"#~#"}, StringSplitOptions.RemoveEmptyEntries).
                ToList()

            For Each oIndexPart As String In oIndexparts
                LOGGER.Debug(oIndexPart)
            Next

            LOGGER.Info($" [{oIndexparts.Count}] Indices parsed")
            oIndexArr = oIndexparts
            Return True
        Catch ex As Exception
            LOGGER.Error(ex)
            LOGGER.Warn("Error in ParseArgs:" & vbNewLine & ex.Message)
            oErrorMessage &= vbNewLine & "Error in ParseArgs:" & vbNewLine & ex.Message
            oErrorParse = True
            System.Console.WriteLine($"Error in ParseArgs - {Now.ToString}")

            Return False
        End Try
    End Function
    Public Function StreamORIndexFile()
        Try
            Dim oResult As Boolean = False
            If oMode = MODE_VERSION Then
                oResult = WINDREAM.NewFileStream(oSourceFile, oTargetPath)
            ElseIf oMode = MODE_OVERWRITE Then
                Dim oDeleted = WINDREAM.RemoveFile(oTargetPath)
                If oDeleted = True Then
                    oResult = WINDREAM.NewFileStream(oSourceFile, oTargetPath)
                Else
                    LOGGER.Warn($"Mode ImportOverwrite is active - but WMFile could not be deleted!!")
                End If
            ElseIf oMode = MODE_NACHINDEXIERUNG Then
                oResult = True
            End If

            If oResult = True Then
                If oMode <> MODE_NACHINDEXIERUNG Then
                    LOGGER.Info($"File successfully streamed to windream [{oTargetPath}]! Now indexing...")
                End If

                For Each oIndex As String In oIndexArr
                    Dim oMatch As Match = oRegex.Match(oIndex)

                    If oMatch.Success Then

                        Dim oIndexName = oMatch.Groups(1)?.Value
                        Dim oIndexValues = oMatch.Groups.Item(2)?.Value
                        Dim oSplitValue = New String() {"~#~"}

                        Dim oIndexValueArray = oIndexValues.Split(oSplitValue, StringSplitOptions.RemoveEmptyEntries)
                        Dim oIndexResult = False

                        LOGGER.Info("Setting Index [{0}] to [{1}].", oIndexName, oIndexValues)

                        If WINDREAM.TestIndexNameIsVectorIndex(oIndexName) Then
                            Dim oCombinedIndexValues = WINDREAM.GetVectorData(oTargetPath, oIndexName, oIndexValueArray, False)
                            oIndexResult = WINDREAM.SetFileIndex(oTargetPath, oIndexName, oCombinedIndexValues.ToList, oWMObjecttype)
                        Else
                            oIndexResult = WINDREAM.SetFileIndex(oTargetPath, oIndexName, oIndexValueArray(0), oWMObjecttype)
                        End If

                        oResult = oIndexResult
                    Else
                        oResult = False
                    End If

                    If oResult = False Then
                        LOGGER.Warn("Indexing failed. Exiting.")
                        Exit For
                    End If
                Next
            End If

            If oResult = True Then
                LOGGER.Info("## All Tasks finished ##")
                oErrorImport = False
            End If

            'If oResult = True Then
            '    If oMode <> MODE_NACHINDEXIERUNG Then
            '        LOGGER.Info($"File successfully streamed to windream [{oTargetPath}]! Now indexing...")
            '    End If

            '    For Each oIndex2 As String In oIndexArr
            '        Dim oIndexInfo() = oIndex2.Split("={")
            '        Dim oIndexName = oIndexInfo(0)
            '        Dim oIndexvalue
            '        Dim r As Regex = New Regex(oRegExArg, RegexOptions.IgnoreCase)
            '        '    ' Match the regular expression pattern against a text string.
            '        Dim m As Match = r.Match(oIndex2)
            '        Do While m.Success

            '            '        oClearedBodyText = oClearedBodyText.Replace(m.Value, "")
            '            'Dim g As Group = m.Groups(1)
            '            Dim g1 As Group = m.Groups(2)
            '            Dim g2 As Group = m.Groups(3)

            '            If Not IsNothing(g2.Value) Then
            '                oIndexvalue = g2.Value
            '                Console.WriteLine($"Indexvalue: {oIndexvalue}")
            '            End If

            '            If Len(oIndexvalue) > 0 Then
            '                If WMIndices.Contains(oIndexName) Then
            '                    LOGGER.Info($"Setting Index: oIndexName [{oIndexName}] - oIndexvalue [{oIndexvalue}]")

            '                    'DEBUG
            '                    oIndexvalue = New List(Of String) From {"Wert 1", "Wert 2", "wert 3"}
            '                    'DEBUG

            '                    If WINDREAM.SetFileIndex(oTargetPath, oIndexName, oIndexvalue, oWMObjecttype) = False Then
            '                        LOGGER.Info($"Index could not be set...")
            '                        If WINDREAM.RemoveFile(oTargetPath) = True Then
            '                            LOGGER.Info($"File deleted after error!")
            '                        End If
            '                        oResult = False
            '                        Exit For
            '                    End If
            '                Else
            '                    LOGGER.Warn($"Transmitted index with name [{oIndexName}] is not existing in WM Objecttype!")
            '                    If WINDREAM.RemoveFile(oTargetPath) = True Then
            '                        LOGGER.Info($"File deleted after error!")
            '                    End If
            '                    oResult = False
            '                    Exit For
            '                End If
            '            End If
            '            m = m.NextMatch()
            '        Loop
            '    Next
            '    If oResult = True Then
            '        LOGGER.Info("## All Tasks finished ##")
            '        oErrorImport = False
            '    End If
            'End If

            Return oResult
        Catch ex As Exception
            LOGGER.Warn($"Unexpected Error in StreamORIndexFile: {ex.Message}")
            LOGGER.Error(ex)
            Return False
        End Try
    End Function
End Module