Imports System.Data.SqlClient
Imports System.Reflection

Public Class cKundenSicherheiten

    Public Property sc_id As Integer
    Public Property sc_kundenNr As String
    Public Property sc_datum As Date?

    Public Property sc_gueltigVon As Date?
    Public Property sc_gueltigBis As Date?

    Public Property sc_Art As String
    Public Property sc_Sicherheitsgeber As String
    Public Property sc_SicherheitsgeberLand As String
    Public Property sc_Bemerkung As String

    Public Property sc_Betrag As Decimal?
    Public Property sc_Waehrung As String
    Public Property sc_Mitarbeiter As String
    Public Property sc_MitarbeiterId As Integer? = Nothing
    Public Property sc_dsId As Integer? = Nothing
    Public Property sc_storno As Boolean = False
    Public Property sc_stornoDatum As Date? = Nothing
    Public Property sc_stornoMaId As Integer? = Nothing


    Public hasEntry As Boolean = False

    Dim SQL As New SQL

    Sub New(_sc_id As Integer)
        sc_id = _sc_id
        LOAD()
    End Sub

    Public Function getParameterList() As List(Of VERAG_PROG_ALLGEMEIN.SQLVariable)
        Dim list As New List(Of VERAG_PROG_ALLGEMEIN.SQLVariable)

        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_id", sc_id,, True))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_kundenNr", sc_kundenNr))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_datum", sc_datum))

        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_gueltigVon", sc_gueltigVon))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_gueltigBis", sc_gueltigBis))

        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_Art", sc_Art))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_Sicherheitsgeber", sc_Sicherheitsgeber))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_SicherheitsgeberLand", sc_SicherheitsgeberLand))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_Bemerkung", sc_Bemerkung))

        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_Betrag", sc_Betrag))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_Waehrung", sc_Waehrung))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_Mitarbeiter", sc_Mitarbeiter))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_MitarbeiterId", sc_MitarbeiterId))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_dsId", sc_dsId))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_storno", sc_storno))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_stornoDatum", sc_stornoDatum))
        list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_stornoMaId", sc_stornoMaId))

        Return list
    End Function

    Public Function SAVE() As Boolean
        Dim list = getParameterList()

        sc_MitarbeiterId = VERAG_PROG_ALLGEMEIN.cAllgemein.USRID
        sc_Mitarbeiter = VERAG_PROG_ALLGEMEIN.cAllgemein.USRKURZNAME

        Dim sqlstr As String =
            "BEGIN TRAN " &
            "IF EXISTS (SELECT 1 FROM tblKundenSicherheiten WHERE sc_id=@sc_id) " &
            "BEGIN " & getUpdateCmd() & " END " &
            "ELSE " &
            "BEGIN " & getInsertCmd() & " END " &
            "COMMIT TRAN"

        Return SQL.doSQLVarList(sqlstr, "FMZOLL", , list)
    End Function

    Public Sub LOAD()
        Try
            hasEntry = False
            Using conn As SqlConnection = SQL.GetNewOpenConnectionFMZOLL()
                Using cmd As New SqlCommand("SELECT * FROM tblKundenSicherheiten WHERE sc_id=@sc_id", conn)
                    cmd.Parameters.AddWithValue("@sc_id", sc_id)
                    Dim dr = cmd.ExecuteReader()
                    If dr.Read Then
                        For Each li In getParameterList()
                            Dim prop As PropertyInfo = Me.GetType.GetProperty(li.Scalarvariable)
                            If dr(li.Text) Is DBNull.Value Then
                                prop.SetValue(Me, Nothing)
                            Else
                                prop.SetValue(Me, dr(li.Text))
                            End If
                        Next
                        hasEntry = True
                    End If
                    dr.Close()
                End Using
            End Using
        Catch ex As Exception
            VERAG_PROG_ALLGEMEIN.cErrorHandler.ERR(ex.Message, ex.StackTrace, MethodInfo.GetCurrentMethod.Name)
        End Try
    End Sub

    Public Function getUpdateCmd() As String
        Dim list = getParameterList()
        Dim str As String = ""

        For Each i In list
            If Not i.isPrimaryParam Then
                str &= "[" & i.Text & "] = @" & i.Scalarvariable & ","
            End If
        Next

        str = str.Substring(0, str.Length - 1)
        Return "UPDATE tblKundenSicherheiten SET " & str & " WHERE sc_id=@sc_id"
    End Function

    Public Function getInsertCmd() As String
        Dim list = getParameterList()
        Dim fields As String = ""
        Dim values As String = ""

        For Each i In list
            If Not i.isPrimaryParam Then
                fields &= "[" & i.Text & "],"
                values &= "@" & i.Scalarvariable & ","
            End If
        Next

        fields = fields.Substring(0, fields.Length - 1)
        values = values.Substring(0, values.Length - 1)

        Return "INSERT INTO tblKundenSicherheiten(" & fields & ") VALUES (" & values & ")"
    End Function

    Public Shared Function Load_List(kundenNr As String) As List(Of cKundenSicherheiten)
        Dim list As New List(Of cKundenSicherheiten)
        Dim SQL As New SQL

        Using conn As SqlConnection = SQL.GetNewOpenConnectionFMZOLL()
            Using cmd As New SqlCommand("SELECT sc_id FROM tblKundenSicherheiten WHERE sc_kundenNr=@kn ORDER BY sc_gueltigVon DESC", conn)
                cmd.Parameters.AddWithValue("@kn", kundenNr)
                Dim dr = cmd.ExecuteReader()
                While dr.Read()
                    list.Add(New cKundenSicherheiten(CInt(dr("sc_id"))))
                End While
                dr.Close()
            End Using
        End Using

        Return list
    End Function

    Public Function DELETE() As Boolean
        Try
            Dim list As New List(Of VERAG_PROG_ALLGEMEIN.SQLVariable)
            list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_id", sc_id,, True))

            Dim sqlstr As String =
                "DELETE FROM tblKundenSicherheiten WHERE sc_id=@sc_id"

            Return SQL.doSQLVarList(sqlstr, "FMZOLL", , list)

        Catch ex As Exception
            VERAG_PROG_ALLGEMEIN.cErrorHandler.ERR(ex.Message, ex.StackTrace, System.Reflection.MethodInfo.GetCurrentMethod.Name)
        End Try
        Return False
    End Function

    Public Function STORNO() As Boolean
        Try
            Dim list As New List(Of VERAG_PROG_ALLGEMEIN.SQLVariable)

            list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("sc_id", sc_id,, True))
            list.Add(New VERAG_PROG_ALLGEMEIN.SQLVariable("stornoUser", VERAG_PROG_ALLGEMEIN.cAllgemein.USRID))

            Dim sqlstr As String =
            "UPDATE tblKundenSicherheiten SET " &
            " sc_storno = 1, " &
            " sc_stornoDatum = GETDATE(), " &
            " sc_stornoUser = @stornoUser " &
            "WHERE sc_id = @sc_id " &
            "  AND ISNULL(sc_storno,0) = 0"

            Return SQL.doSQLVarList(sqlstr, "FMZOLL", , list)

        Catch ex As Exception
            VERAG_PROG_ALLGEMEIN.cErrorHandler.ERR(ex.Message, ex.StackTrace, System.Reflection.MethodInfo.GetCurrentMethod.Name)
        End Try

        Return False
    End Function

    Public Shared Function GetSummeSicherheitenAktuell(kundenNr As String, Optional stichtag As Date = Nothing) As Decimal
        Try
            If stichtag = Nothing Then stichtag = Date.Today
            Dim SQL As New SQL

            Using conn As SqlConnection = SQL.GetNewOpenConnectionFMZOLL()
                Using cmd As New SqlCommand("
                SELECT ISNULL(SUM(sc_Betrag),0)
                FROM tblKundenSicherheiten 
                WHERE sc_kundenNr = @kn
                  AND (sc_gueltigVon IS NULL OR sc_gueltigVon <= @dt)
                  AND (sc_gueltigBis IS NULL OR sc_gueltigBis >= @dt) 
                  AND sc_storno=0 ", conn)

                    cmd.Parameters.AddWithValue("@kn", kundenNr)
                    cmd.Parameters.AddWithValue("@dt", stichtag)

                    Return Convert.ToDecimal(cmd.ExecuteScalar())
                End Using
            End Using

        Catch ex As Exception
            VERAG_PROG_ALLGEMEIN.cErrorHandler.ERR(
                ex.Message,
                ex.StackTrace,
                System.Reflection.MethodInfo.GetCurrentMethod.Name
            )
        End Try

        Return 0D
    End Function

End Class