Imports System.Data.Sql
Imports System.Data.SqlClient
Imports System.Data.SqlTypes
Imports System.IO
Imports DevComponents.AdvTree

Public Class clsDok

    Dim dbdokumente As New clsDB
    Dim m_stream As MemoryStream
    Property Documentstream As MemoryStream
        Get
            Return m_stream

        End Get
        Set(value As MemoryStream)
            m_stream = value
        End Set
    End Property

#Region "Dokument Save Get"

    Public Function Save_Document(ByVal Dokumentnr As Integer, ByVal Filename As String) As Boolean
        Dim Connection As New SqlConnection()
        Dim DA As New SqlDataAdapter("select * from dms_dokument where nreintrag =" + Str(Dokumentnr), Connection)
        Dim cb As SqlCommandBuilder = New SqlCommandBuilder(DA)
        Dim ds As New DataSet()
        Dim fs As New FileStream(Filename, FileMode.OpenOrCreate, FileAccess.Read)
        Dim mydata(fs.Length) As Byte
        Try
            fs.Read(mydata, 0, fs.Length)
            fs.Close()

            Connection.ConnectionString = My.Settings.ConnectionString
            Connection.Open()
            DA.Fill(ds, "Dokument")
            Dim myRow As DataRow
            If ds.Tables(0).Rows.Count = 0 Then
                Return False
            Else
                myRow = ds.Tables(0).Rows(0)
                myRow.Item(14) = mydata
                DA.Update(ds, "Dokument")
            End If
            Return True
        Catch ex As Exception
            MsgBox(ex.Message)
            Return False
        Finally
            fs = Nothing
            cb = Nothing
            ds = Nothing
            DA = Nothing
            Connection.Close()
            Connection = Nothing
        End Try

    End Function

    Public Function Save_Vorlage(ByVal Dokumentnr As Integer, ByVal Filename As String) As Boolean
        Dim Connection As New SqlConnection()
        Dim DA As New SqlDataAdapter("select * from dms_vorlage where nreintrag =" + Str(Dokumentnr), Connection)
        Dim cb As SqlCommandBuilder = New SqlCommandBuilder(DA)
        Dim ds As New DataSet()
        Dim fs As New FileStream(Filename, FileMode.OpenOrCreate, FileAccess.Read)
        Dim mydata(fs.Length) As Byte
        Try
            fs.Read(mydata, 0, fs.Length)
            fs.Close()

            Connection.ConnectionString = My.Settings.ConnectionString
            Connection.Open()
            DA.Fill(ds, "Dokument")
            Dim myRow As DataRow
            If ds.Tables(0).Rows.Count = 0 Then
                Return False
            Else
                myRow = ds.Tables(0).Rows(0)
                myRow.Item(8) = mydata
                DA.Update(ds, "Dokument")
            End If
            Return True
        Catch ex As Exception
            MsgBox(ex.Message)
            Return False
        Finally
            fs = Nothing
            cb = Nothing
            ds = Nothing
            DA = Nothing
            Connection.Close()
            Connection = Nothing
        End Try

    End Function


    Public Function Get_Dokument(ByVal DokumentNr As Integer, Optional destdir As String = "", Optional WithTimeStamp As Boolean = False, Optional DeleteDestFile As Boolean = False) As String
        Dim Filename As String = My.Settings.TempPath
        If destdir <> "" Then Filename = destdir
        If Right(Filename, 1) <> "\" Then Filename = Filename + "\"

        Dim connection As New SqlConnection()
        Dim da As New SqlDataAdapter("Select * From dms_Dokument where nreintrag=" + Str(DokumentNr), connection)
        Dim CB As SqlCommandBuilder = New SqlCommandBuilder(da)
        Dim ds As New DataSet()
        Try
            connection.ConnectionString = My.Settings.ConnectionString
            connection.Open()
            da.Fill(ds, "Dokument")
            Dim myRow As DataRow
            myRow = ds.Tables(0).Rows(0)
            Dim MyData() As Byte
            MyData = myRow.Item(14)

            Dim K As Long
            K = UBound(MyData)

            If WithTimeStamp = True Then
                Filename = Filename + Format(Now, "yyyyMMddHHmmss") + "_"
            End If
            Filename = Filename + System.IO.Path.GetFileName(myRow.Item(4))
            If System.IO.File.Exists(Filename) Then
                System.IO.File.Delete(Filename)
            End If
            Dim fs As New FileStream(Filename, FileMode.OpenOrCreate, FileAccess.Write)
            fs.Write(MyData, 0, K)
            fs.Close()
            fs = Nothing
        Catch ex As Exception
            MsgBox(ex.Message, MsgBoxStyle.Critical)
            Return ""
        Finally
            connection.Close()
            connection = Nothing
        End Try
        CB = Nothing
        ds = Nothing
        da = Nothing
        Return Filename
    End Function

    Public Function Get_Vorlage(ByVal DokumentNr As Integer, ByVal Filename As String) As String

        Dim connection As New SqlConnection()
        Dim da As New SqlDataAdapter("Select * From dms_vorlage where nreintrag=" + Str(DokumentNr), connection)
        Dim CB As SqlCommandBuilder = New SqlCommandBuilder(da)
        Dim ds As New DataSet()
        Try
            connection.ConnectionString = My.Settings.ConnectionString
            connection.Open()
            da.Fill(ds, "Dokument")
            Dim myRow As DataRow
            myRow = ds.Tables(0).Rows(0)
            Dim MyData() As Byte
            MyData = myRow.Item(8)

            Dim K As Long
            K = UBound(MyData)
            If System.IO.File.Exists(Filename) Then
                System.IO.File.Delete(Filename)
            End If
            Dim fs As New FileStream(Filename, FileMode.OpenOrCreate, FileAccess.Write)
            fs.Write(MyData, 0, K)
            fs.Close()
            fs = Nothing
        Catch ex As Exception
            MsgBox(ex.Message, MsgBoxStyle.Critical)
            Return ""
        Finally
            connection.Close()
            connection = Nothing
        End Try
        CB = Nothing
        ds = Nothing
        da = Nothing
        Return Filename
    End Function


    Public Function Get_Dokument_stram(ByVal DokumentNr As Integer) As MemoryStream
        Dim Filename As String = My.Settings.TempPath
        If Right(Filename, 1) <> "\" Then Filename = Filename + "\"

        Dim connection As New SqlConnection()
        Dim da As New SqlDataAdapter("Select * From dms_Dokument where nreintrag=" + Str(DokumentNr), connection)
        Dim CB As SqlCommandBuilder = New SqlCommandBuilder(da)
        Dim ds As New DataSet()
        Try
            connection.ConnectionString = My.Settings.ConnectionString
            connection.Open()
            da.Fill(ds, "Dokument")
            Dim myRow As DataRow
            myRow = ds.Tables(0).Rows(0)
            Dim MyData() As Byte
            MyData = myRow.Item(14)

            Dim K As Long
            K = UBound(MyData)
            Dim ms As New MemoryStream(MyData)

            Return ms

            Filename = Filename + System.IO.Path.GetFileName(myRow.Item(4))
            Dim fs As New FileStream(Filename, FileMode.OpenOrCreate, FileAccess.Write)
            fs.Write(MyData, 0, K)
            fs.Close()
            fs = Nothing
        Catch ex As Exception
            MsgBox(ex.Message, MsgBoxStyle.Critical)
            Return Nothing
        Finally
            connection.Close()
            connection = Nothing
        End Try
        CB = Nothing
        ds = Nothing
        da = Nothing
        Return Nothing
    End Function
#End Region

#Region "Tree"
    Public Function LoadTree(ByRef Tree As DevComponents.AdvTree.AdvTree)
        Dim db As New clsDB
        Try
            db.Get_Tabledata("DMS_Struktur", "", "Select * from dms_struktur where aktiv=1 order by sort, bezeichnung ")
            If db.dsDaten.Tables(0).Rows.Count = 0 Then db.Get_Tabledata("DMS_Struktur", "", "Select * from dms_struktur where aktiv=1")
        Catch
            db.Get_Tabledata("DMS_Struktur", "", "Select * from dms_struktur where aktiv=1")

        End Try

        Load_Treeview(db.dsDaten, Tree)
        db.Dispose()
        Tree.ExpandAll()
    End Function


    Private Sub Load_Treeview(ByVal oSourceData As DataSet, ByRef tree As AdvTree)
        If Not (oSourceData Is Nothing) Then
            Dim oView As DataView = oSourceData.Tables(0).DefaultView
            Dim oTable As DataTable = oView.Table
            Dim oDS As DataSet = New DataSet()
            oDS.Tables.Add(oTable.Copy())

            If oDS.Relations.Contains("SelfRefenceRelation") = False Then
                oDS.Relations.Add("SelfRefenceRelation",
                    oDS.Tables(0).Columns("eintragnr"),
                    oDS.Tables(0).Columns("parentid"))
            End If
            oTable.Dispose()
            oTable = Nothing
            LoadTreeView(oDS, tree)
            oDS.Dispose()
            oDS = Nothing
        End If
    End Sub

    ''' <summary>
    ''' Tree aufbauen
    ''' </summary>
    ''' <param name="oDS"></param>
    ''' <param name="oTreeview"></param>
    ''' <remarks></remarks>
    Private Sub LoadTreeView(ByVal oDS As DataSet, ByRef oTreeview As AdvTree)
        'Dim oTreeView As TreeView = New TreeView()
        Dim oDataRow As DataRow
        For Each oDataRow In oDS.Tables(0).Rows
            If Not oDataRow.IsNull("Parentid") Then
                If oDataRow.Item("Parentid") = 0 Then
                    Dim oNode As New DevComponents.AdvTree.Node
                    oNode.Text = oDataRow("Bezeichnung").ToString()
                    oNode.Tag = oDataRow("eintragnr").ToString
                    oNode.ImageIndex = 0
                    oNode.ImageIndex = 0
                    oTreeview.Nodes.Add(oNode)
                    RecursivelyLoadTree(oDataRow, oNode)
                End If
            End If
        Next oDataRow
        oDS.Dispose()
        oDS = Nothing
    End Sub

    ''' <summary>
    ''' Child-Nodes hinzufügen
    ''' </summary>
    ''' <param name="oDataRow"></param>
    ''' <param name="oNode"></param>
    ''' <remarks></remarks>
    Private Sub RecursivelyLoadTree(ByVal oDataRow As DataRow, ByRef oNode As DevComponents.AdvTree.Node)
        Dim oChildRow As DataRow
        For Each oChildRow In oDataRow.GetChildRows("SelfRefenceRelation")
            Dim oChildNode As New DevComponents.AdvTree.Node()
            oChildNode.Text = oChildRow("Bezeichnung").ToString()
            oChildNode.Tag = oChildRow("eintragnr").ToString()
            If oChildRow("eintragnr") = 0 Then
                oChildNode.ImageIndex = 0
                oChildNode.ImageIndex = 0
            Else
                oChildNode.ImageIndex = 1
                oChildNode.ImageIndex = 1
            End If
            oNode.Nodes.Add(oChildNode)
            RecursivelyLoadTree(oChildRow, oChildNode)
        Next oChildRow
    End Sub

#End Region

#Region "Datahandling"

    Public Function Update_Grid(ByVal Strukturelement As Integer, ByVal Keyvalue As Integer, ByRef c1dokumente As C1.Win.C1TrueDBGrid.C1TrueDBGrid)
        dbdokumente.Get_Tabledata("Dokumente", "", "Select * from dms_dokument where dms_strukturnr=" + Strukturelement.ToString + " and keyvalue=" + Keyvalue.ToString + " and aktiv=1 order by erstellt_am desc")
        c1dokumente.DataSource = Nothing
        c1dokumente.DataSource = dbdokumente.dsDaten.Tables(0)
        c1dokumente.DataMember = dbdokumente.dsDaten.Tables(0).TableName
        Dim spalten As New Tabellenspalte
        spalten.Spaltentitel_aktualisieren(c1dokumente, "DMS_Dokument", dbdokumente.dsDaten.Tables(0))
    End Function

    Public Function Create_Doc(ByVal Strukturelement As Integer, ByVal Bezeichnung As String, ByVal Path As String, ByVal Partnernr As Integer, Optional nrfaktura As Integer = 0)
        Dim dir As String
        Dim db1 As New clsDB
        db1.Get_Tabledata("DMS_Settings", "", "Select * from dms_settings where nreintrag=1")
        Dim db2 As New clsDB
        db2.Get_Tabledata("DMS_Settings", "", "Select * from dms_settings where nreintrag=2")
        dir = db2.dsDaten.Tables(0).Rows(0).Item(2)

        dbdokumente.Get_Tabledata("Dokumente", "", "Select * from dms_dokument where nreintrag=-1")
        Dim dr As DataRow
        dr = dbdokumente.dsDaten.Tables(0).NewRow

        dr.Item(1) = Strukturelement
        dr.Item(2) = Bezeichnung
        dr.Item(3) = ""
        dr.Item(4) = Path
        dr.Item(5) = Now
        dr.Item(6) = Now
        dr.Item(7) = Globals.ActUser
        dr.Item(8) = True
        dr.Item(9) = db1.dsDaten.Tables(0).Rows(0).Item(2)
        If UCase(db1.dsDaten.Tables(0).Rows(0).Item(2)) = "FALSE" Then
            dr.Item(4) = dir + System.IO.Path.GetFileName(Path)
        End If
        dr.Item(10) = Now
        dr.Item(11) = False
        dr.Item(12) = ""
        dr.Item(13) = Partnernr
        dr.Item(15) = nrfaktura
        dbdokumente.dsDaten.Tables(0).Rows.Add(dr)
        dbdokumente.Update_Data()
        If db1.dsDaten.Tables(0).Rows(0).Item(2) = "True" Then
            dbdokumente.Get_Tabledata("Dokument", "", "Select top 1 * from dms_dokument order by nreintrag desc")
            Dim dok As New clsDok
            dok.Save_Document(dbdokumente.dsDaten.Tables(0).Rows(0).Item(0), Path)
        Else
            If Not System.IO.Directory.Exists(dir) Then
                System.IO.Directory.CreateDirectory(dir)
            End If
            System.IO.File.Copy(Path, dir + System.IO.Path.GetFileName(Path))
        End If
    End Function

    Public Sub Delete_Doks(ByVal nrbehandlung As String)
        Dim db As New clsDB
        Dim db1 As New clsDB
        Try
            Dim Hauptfaktura As Integer
            db.Get_Tabledata("Doks", "", "Select nrhauptfaktura from faktura where nrbehandlung=" + nrbehandlung.ToString + " order by erstellt_am desc")
            Hauptfaktura = db.dsDaten.Tables(0).Rows(0).Item(0)
            db.Get_Tabledata("Doks", "", "Select * from dms_dokument where nrfaktura=" + Hauptfaktura.ToString + " and aktiv=1")
            If db.dsDaten.Tables(0).Rows.Count > 0 Then
                If MsgBox("Möchten Sie die vorhandenen Dokumente löschen?", vbYesNo + vbQuestion) = vbNo Then Exit Sub
                db.Get_Tabledata("fakturen", "", "Select nrfaktura from faktura where nrhauptfaktura=" + Hauptfaktura.ToString + " order by erstellt_am desc")
                For Each r As DataRow In db.dsDaten.Tables(0).Rows
                    db1.Get_Tabledata("doks", "", "Select * from dms_dokument where nrfaktura=" + r.Item(0).ToString)
                    Delete_Dok(db1.dsDaten.Tables(0).Rows(0).Item(0))
                Next
            End If
        Catch
        Finally
            db.Dispose()
        End Try

    End Sub

    Public Sub Delete_Dok(ByVal Dokumentid As String)
        Dim db As New clsDB
        Dim db1 As New clsDB
        db.Get_Tabledata("DMS_Dokument", "where nreintrag=" + Dokumentid, "")
        db.dsDaten.Tables(0).Rows(0).Item("Aktiv") = 0
        db.dsDaten.Tables(0).Rows(0).Item("mutiert_am") = Now
        db.dsDaten.Tables(0).Rows(0).Item("mutierer") = Globals.ActUser
        db.Update_Data()
        db1.Get_Tabledata("DMS_Settings", "", "Select * from dms_settings where nreintrag=1")
        If UCase(db1.dsDaten.Tables(0).Rows(0).Item(2)) = "FALSE" Then
            Try
                System.IO.File.Delete(db.dsDaten.Tables(0).Rows(0).Item("Pfad"))
            Catch ex As Exception
                MsgBox("Die Datei '" + db.dsDaten.Tables(0).Rows(0).Item("Pfad") + " konnte nicht gelöscht werden.", vbExclamation)
            End Try
        End If
        db.Dispose()
        db1.Dispose()
    End Sub
#End Region

End Class