Imports System.ComponentModel
Imports System.Reflection
Imports System
Imports System.Data
Imports System.Data.SqlTypes
Imports System.Data.SqlClient

Public Class DataClass

    Dim m_connectionstring As String
    Property ConnectionString As String
        Get
            ConnectionString = m_connectionstring
        End Get
        Set(value As String)
            m_connectionstring = value
            Update_Connectionstring()
        End Set
    End Property

    Dim m_Mitarbeiternr As Integer
    Property Mitarbeiternr As Integer
        Get
            Mitarbeiternr = m_Mitarbeiternr
        End Get
        Set(value As Integer)
            m_Mitarbeiternr = value
            Update_Mitarbeiter()
        End Set
    End Property


    Public Enum Struktur_Selectiontype
        Berechtigung = 0
        Organisation = 1
        Personal = 2
        Plattform = 3
        Server = 4
        Verwaltungdurch = 5
        Verwaltungmit = 6
    End Enum


    Sub New()

    End Sub

    Sub Update_Connectionstring()
        Globals.sConnectionString = Me.ConnectionString
        Globals.conn.sConnectionString = Me.ConnectionString
    End Sub

    Public Sub Update_Mitarbeiter()
        Globals.Mitarbeiternr = Me.Mitarbeiternr
    End Sub

    Public Shared Function CreateNew(ByVal ClassName As String) As Object
        Dim objType As System.Type
        Dim objConstructor As Reflection.ConstructorInfo
        If ClassName Is Nothing Then Throw New ArgumentNullException(ClassName)
        objType = System.Type.GetType(ClassName)
        If objType Is Nothing Then Throw New Exception("Unknown Type " & ClassName)
        Dim objParams() As System.Type = {}
        objConstructor = objType.GetConstructor(objParams)
        If objConstructor Is Nothing Then Throw New Exception("No default constructor for " & objType.FullName)
        Return objConstructor.Invoke(objParams)
    End Function

    Public Sub CreateNew(ByVal ClassName As String, ByRef Obj As Object)
        Dim objType As System.Type
        Dim objConstructor As Reflection.ConstructorInfo
        If ClassName Is Nothing Then Throw New ArgumentNullException(ClassName)
        objType = System.Type.GetType(ClassName)
        If objType Is Nothing Then Throw New Exception("Unknown Type " & ClassName)
        Dim objParams() As System.Type = {}
        objConstructor = objType.GetConstructor(objParams)
        If objConstructor Is Nothing Then Throw New Exception("No default constructor for " & objType.FullName)
        Obj = objConstructor.Invoke(objParams)
    End Sub

    Public Function Get_Selectiontype(ByVal type As String) As _DataClass.DataClass.Struktur_Selectiontype
        Select Case type
            Case "Berechtigung"
                Return Struktur_Selectiontype.Berechtigung
            Case "Organisation"
                Return Struktur_Selectiontype.Organisation
            Case "Funktionstelle"
                Return Struktur_Selectiontype.Organisation
            Case "Personal"
                Return Struktur_Selectiontype.Personal
            Case "Plattform"
                Return Struktur_Selectiontype.Plattform
            Case "Server"
                Return Struktur_Selectiontype.Server
            Case "Verwaltung durch", "VerwaltungDurch"
                Return Struktur_Selectiontype.Verwaltungdurch
            Case "Verwaltung mit", "VerwaltungMit"
                Return Struktur_Selectiontype.Verwaltungmit
        End Select
    End Function

    Public Function Get_SelectionTypeText(ByVal Type As _DataClass.DataClass.Struktur_Selectiontype) As String
        Select Case Type
            Case _DataClass.DataClass.Struktur_Selectiontype.Berechtigung
                Return "Berechtigung"
            Case _DataClass.DataClass.Struktur_Selectiontype.Organisation
                Return "Funktionstelle"
            Case _DataClass.DataClass.Struktur_Selectiontype.Personal
                Return "Personal"
            Case _DataClass.DataClass.Struktur_Selectiontype.Plattform
                Return "Plattform"
            Case _DataClass.DataClass.Struktur_Selectiontype.Server
                Return "Server"
            Case _DataClass.DataClass.Struktur_Selectiontype.Verwaltungdurch
                Return "VerwaltungDurch"
            Case _DataClass.DataClass.Struktur_Selectiontype.Verwaltungmit
                Return "VerwaltungMit"
        End Select
    End Function

    Public Function Get_Beziehungen(ByVal Type As String, ByVal Keyvalue As Integer) As DataTable
        Dim objekt As New DB.clsObjekt
        objekt.cpMainConnectionProvider = Globals.conn
        Dim dt As New DataTable
        dt = objekt.SelectAll
        For Each dr As DataRow In dt.Rows
            If dr.Item("Aktiv") = True And ((dr.Item("Bezeichnung") = Type Or dr.Item("Beschreibung") = Type)) Then
                Dim clsbeziehungen As New db.clsBeziehungen
                Return clsbeziehungen.Get_Beziehungen(dr.Item("Stored_Proc_Beziehungen"), Keyvalue)
            End If
        Next
    End Function

    Private Function Get_Data_BezExcelExport(ByVal Type As String, ByVal Keyvalue As Integer) As DataTable
        Dim objekt As New DB.clsObjekt
        objekt.cpMainConnectionProvider = Globals.conn
        Dim dt As New DataTable
        dt = objekt.SelectAll
        For Each dr As DataRow In dt.Rows
            If dr.Item("Aktiv") = True And (dr.Item("Bezeichnung") = Type Or dr.Item("Beschreibung") = Type) Then
                Dim clsbeziehungen As New DB.clsBeziehungen
                Return clsbeziehungen.Get_Beziehungen(dr.Item("Stored_Proc_Beziehungen"), Keyvalue, 1)
            End If
        Next
    End Function

    Public Function Get_Data_for_ExcelExport(ByVal Type As String, ByVal Keyvalue As Integer) As DataTable
        Dim dt As New DataTable
        Dim dr As New DataTable

        dr.Columns.Add("Key", System.Type.GetType("System.Int32"))
        dr.Columns.Add("M_Bezeichnung", System.Type.GetType("System.String"))
        dr.Columns.Add("M_Beschreibung", System.Type.GetType("System.String"))

        Select Case Get_Selectiontype(Type)
            Case 1 'Organisation
                'dr.Columns.Add("Funktionsstelle", System.Type.GetType("System.String"))
                dr.Columns.Add("Funktionsnummer", System.Type.GetType("System.Int32"))
            Case 0 'BERECHTIGUNG
            Case 3 'PLATTFORM
            Case 2 'PERSONAL
                dr.Columns.Add("UserID", System.Type.GetType("System.String"))
                dr.Columns.Add("Name", System.Type.GetType("System.String"))
            Case 4 'SERVER
            Case 5 'VERWALTUNGDURCH
            Case 6 'VERWALTUNGMIT
        End Select

        dr.Columns.Add("ID", System.Type.GetType("System.Int32"))
        dr.Columns.Add("Sequenz", System.Type.GetType("System.Int32"))
        dr.Columns.Add("Bezeichnung", System.Type.GetType("System.String"))
        dr.Columns.Add("Beschreibung", System.Type.GetType("System.String"))
        dr.Columns.Add("Typ", System.Type.GetType("System.String"))
        dr.Columns.Add("Zusatz", System.Type.GetType("System.String"))

        Dim DBObject As New Object
        Me.CreateNew("_DataClass.db." + Type, DBObject)
        DBObject.get_data(Keyvalue)

        dt = Get_Data_BezExcelExport(Type, Keyvalue)

        For Each r In dt.Rows
            Dim daten As DataRow = dr.NewRow
            daten("ID") = r("ID")
            daten("Bezeichnung") = r("Bezeichnung")
            daten("Beschreibung") = r("Beschreibung")
            daten("Sequenz") = r("Sequenz")
            daten("Typ") = r("Typ")
            daten("Key") = DBObject.Get_Keyvalue
            daten("M_Bezeichnung") = DBObject.sbezeichnung.ToString
            daten("M_Beschreibung") = DBObject.sbeschreibung.ToString
            Try
                daten("Zusatz") = r("Zusatz")

            Catch ex As Exception

            End Try

            Select Case Get_Selectiontype(Type)
                Case 1 'Organisation
                    daten("Funktionsnummer") = DBObject.sFunktionsstelle.ToString
                    'daten("Funktionsnummer") = DBObject.sFunktionsnummer.ToString
                Case 0 'BERECHTIGUNG
                Case 3 'PLATTFORM
                Case 2 'PERSONAL
                    daten("UserID") = DBObject.stgnummer.ToString
                    daten("Name") = DBObject.sname.ToString
                Case 4 'SERVER
                Case 5 'VERWALTUNGDURCH
                Case 6 'VERWALTUNGMIT
            End Select

            Try
                If r("Aktiv") = True Then dr.Rows.Add(daten)
            Catch ex As Exception
                dr.Rows.Add(daten)
            End Try


        Next
        Select Case Get_Selectiontype(Type)
            Case 1 'Organisation
                dr.Columns("M_Bezeichnung").ColumnName = "Funktionsstelle"
            Case Else

        End Select
        Return dr



    End Function

    Public Function Get_Stammdaten(ByVal Tabelle As String, ByVal orderby As String) As DataTable
        Dim selectcommand As New SqlCommand
        Dim connection As New SqlConnection()
        Dim da As New SqlDataAdapter("", connection)
        Dim ds As New DataSet
        selectcommand.CommandText = "sp_get_stammdaten"
        selectcommand.Parameters.Add("@Mitarbeiternr", SqlDbType.Int, 4)
        selectcommand.Parameters.Add("@Tabelle", SqlDbType.VarChar, 255)
        selectcommand.Parameters.Add("@Orderby", SqlDbType.VarChar, 255)
        selectcommand.Parameters(0).Value = Globals.Mitarbeiternr
        selectcommand.Parameters(1).Value = Tabelle
        selectcommand.Parameters(2).Value = orderby

        selectcommand.CommandType = CommandType.StoredProcedure
        selectcommand.Connection = connection
        Try
            connection.ConnectionString = Globals.sConnectionString
            connection.Open()
            da.SelectCommand = selectcommand
            da.Fill(ds)
            Return ds.Tables(0)
        Catch ex As Exception
            MsgBox(ex.Message)
        Finally
            connection.Close()
            da.Dispose()
            ds.Dispose()
            selectcommand.Dispose()
        End Try
    End Function

    Public Function Get_Aktive_Funktionsstellen() As DataTable
        Dim fs As New db.Funktionstelle
        Return fs.Get_aktive_Funktionsstellen
    End Function

    Public Function Get_Aktives_Personal() As DataTable
        Dim fs As New db.Personal
        Return fs.Get_aktives_Personal
    End Function

    Public Function Update_Temporaer_Berechtigung(beschreibung As String, unterlagen As String, bearbeiter As String, kontakt As String, termin As String, keyvalue As Integer, ByVal Datatype As Integer, Optional kontaktid As Integer = 0)
        Dim selectcommand As New SqlCommand
        Dim connection As New SqlConnection()
        Dim da As New SqlDataAdapter("", connection)
        Dim ds As New DataSet
        selectcommand.CommandText = "sp_set_Temporaerberechtigung"
        selectcommand.Parameters.Add("@Beschreibung", SqlDbType.VarChar, 1024)
        selectcommand.Parameters.Add("@Unterlagen", SqlDbType.VarChar, 1024)
        selectcommand.Parameters.Add("@Bearbeiter", SqlDbType.VarChar, 1024)
        selectcommand.Parameters.Add("@Kontkat", SqlDbType.VarChar, 1024)
        selectcommand.Parameters.Add("@Termin", SqlDbType.DateTime)
        selectcommand.Parameters.Add("@KeyValue", SqlDbType.Int, 4)
        selectcommand.Parameters.Add("@Mitarbeiternr", SqlDbType.Int, 4)
        selectcommand.Parameters.Add("@Datatype", SqlDbType.Int, 4)
        selectcommand.Parameters.Add("@Kontaktid", SqlDbType.Int, 4)

        selectcommand.Parameters(0).Value = beschreibung
        selectcommand.Parameters(1).Value = unterlagen
        selectcommand.Parameters(2).Value = bearbeiter
        selectcommand.Parameters(3).Value = kontakt
        selectcommand.Parameters(4).Value = termin
        selectcommand.Parameters(5).Value = keyvalue
        selectcommand.Parameters(6).Value = Globals.Mitarbeiternr
        selectcommand.Parameters(7).Value = Datatype
        selectcommand.Parameters(8).Value = kontaktid

        selectcommand.CommandType = CommandType.StoredProcedure
        selectcommand.Connection = connection
        Try
            connection.ConnectionString = Globals.sConnectionString
            connection.Open()
            da.SelectCommand = selectcommand
            da.Fill(ds)
        Catch ex As Exception
            MsgBox(ex.Message)
        Finally
            connection.Close()
            da.Dispose()
            ds.Dispose()
            selectcommand.Dispose()
        End Try

    End Function

    Public Function Get_Temporaer_Berechtigung(ByVal Keyvalue As Integer) As DataTable
        Dim selectcommand As New SqlCommand
        Dim connection As New SqlConnection()
        Dim da As New SqlDataAdapter("", connection)
        Dim ds As New DataSet
        selectcommand.CommandText = "sp_get_Temporaerberechtigung"
        selectcommand.Parameters.Add("@KeyValue", SqlDbType.Int, 4)
        selectcommand.Parameters(0).Value = Keyvalue

        selectcommand.CommandType = CommandType.StoredProcedure
        selectcommand.Connection = connection
        Try
            connection.ConnectionString = Globals.sConnectionString
            connection.Open()
            da.SelectCommand = selectcommand
            da.Fill(ds)
            Return ds.Tables(0)
        Catch ex As Exception
            MsgBox(ex.Message)
        Finally
            connection.Close()
            da.Dispose()
            ds.Dispose()
            selectcommand.Dispose()
        End Try

    End Function

    Public Function Get_Temp_Berechtgungen() As DataTable
        Dim selectcommand As New SqlCommand
        Dim connection As New SqlConnection()
        Dim da As New SqlDataAdapter("", connection)
        Dim ds As New DataSet
        selectcommand.CommandText = "sp_get_Tempberechtigung"

        selectcommand.CommandType = CommandType.StoredProcedure
        selectcommand.Connection = connection
        Try
            connection.ConnectionString = Globals.sConnectionString
            connection.Open()
            da.SelectCommand = selectcommand
            da.Fill(ds)
            Return ds.Tables(0)
        Catch ex As Exception
            MsgBox(ex.Message)
        Finally
            connection.Close()
            da.Dispose()
            ds.Dispose()
            selectcommand.Dispose()
        End Try
    End Function

    Public Function Delete_temp_Berechtigung(ByVal keyvalue As Integer, mitarbeiternr As Integer)
        Dim selectcommand As New SqlCommand
        Dim connection As New SqlConnection()
        Dim da As New SqlDataAdapter("", connection)
        Dim ds As New DataSet
        selectcommand.CommandText = "sp_delete_Tempberechtigung"
        selectcommand.Parameters.Add("@KeyValue", SqlDbType.Int, 4)
        selectcommand.Parameters.Add("@Mitarbeiternr", SqlDbType.Int, 4)
        selectcommand.Parameters(0).Value = keyvalue
        selectcommand.Parameters(1).Value = mitarbeiternr
        selectcommand.CommandType = CommandType.StoredProcedure
        selectcommand.Connection = connection
        Try
            connection.ConnectionString = Globals.sConnectionString
            connection.Open()
            da.SelectCommand = selectcommand
            da.Fill(ds)
        Catch ex As Exception
            MsgBox(ex.Message)
        Finally
            connection.Close()
            da.Dispose()
            ds.Dispose()
            selectcommand.Dispose()
        End Try

    End Function


End Class