Imports System.ComponentModel
Imports System.Drawing.Design
Imports System.Globalization

Public Module ModuleControlProperties
    Public Enum IndexTypes
        SimpleIndex = 0
        VectorIndex = 1
    End Enum

    Public Class BaseProperties
        Private _id As Integer
        Private _name As String
        Private _location As Point
        Private _size As Size
        Private _font As Font
        Private _text_color As Color
        Private _changed_at As Date
        Private _changed_who As String

        <Category("Allgemein")>
        <[ReadOnly](True)>
        Public Property ChangedAt As Date
            Get
                Return _changed_at
            End Get
            Set(value As Date)
                _changed_at = value
            End Set
        End Property

        <Category("Allgemein")>
        <[ReadOnly](True)>
        Public Property ChangedWho As String
            Get
                Return _changed_who
            End Get
            Set(value As String)
                _changed_who = value
            End Set
        End Property

        <Category("Allgemein")>
        <[ReadOnly](True)>
        Public Property ID() As Integer
            Get
                Return _id
            End Get
            Set(value As Integer)
                _id = value
            End Set
        End Property

        <Category("Allgemein")>
        Public Property Name() As String
            Get
                Return _name
            End Get
            Set(value As String)
                _name = value
            End Set
        End Property

        <Category("Anzeige")>
        Public Property Location() As Point
            Get
                Return _location
            End Get
            Set(value As Point)
                _location = value
            End Set
        End Property

        <Category("Anzeige")>
        Public Property Size() As Size
            Get
                Return _size
            End Get
            Set(value As Size)
                If (value.Height <= 0) Then
                    value.Height = 1
                End If

                If (value.Width <= 20) Then
                    value.Width = 20
                End If

                _size = value
            End Set
        End Property

        <Category("Anzeige")>
        <TypeConverter(GetType(FontConverter))>
        Public Overridable Property Font As Font
            Get
                Return _font
            End Get
            Set(value As Font)
                _font = value
            End Set
        End Property

        <Category("Anzeige")>
        Public Property TextColor As Color
            Get
                Return _text_color
            End Get
            Set(value As Color)
                _text_color = value
            End Set
        End Property

        Class FontConverter
            Inherits TypeConverter

            Public Overrides Function ConvertTo(context As ITypeDescriptorContext, culture As CultureInfo, value As Object, destinationType As Type) As Object
                Dim font = DirectCast(value, Font)
                Return $"{font.Name}, {font.Size}"
            End Function
        End Class
    End Class

    Public Class InputProperties
        Inherits BaseProperties

        Private _required As Boolean
        Private _read_only As Boolean
        Private _index_type As String
        Private _indicies As List(Of String)
        Private _index As String
        Private _sql_command As String

        Public Property Required() As Boolean
            Get
                Return _required
            End Get
            Set(ByVal value As Boolean)
                _required = value
            End Set
        End Property

        Public Property [ReadOnly]() As Boolean
            Get
                Return _read_only
            End Get
            Set(ByVal value As Boolean)
                _read_only = value
            End Set
        End Property

        <Browsable(False)>
        <Category("Indexierung")>
        Public Property IndexType() As IndexTypes
            Get
                Return _index_type
            End Get
            Set(ByVal value As IndexTypes)
                _index_type = value
            End Set
        End Property

        ''' <summary>
        ''' Diese Eigenschaft enthält die auswählbaren Indicies, die für das Control verfügbar sind. Wird nicht direkt angezeigt.
        ''' </summary>
        <Browsable(False)>
        Public Property Indicies() As List(Of String)
            Get
                Return _indicies
            End Get
            Set(ByVal value As List(Of String))
                _indicies = value
            End Set
        End Property

        ''' <summary>
        ''' Diese Eigenschaft enthält des ausgewählten Index
        ''' </summary>
        <Category("Indexierung")>
        <TypeConverter(GetType(IndexListConverter))>
        Public Property Index() As String
            Get
                Return _index
            End Get
            Set(value As String)
                _index = value
            End Set
        End Property

        <Category("Daten")>
        Public Property SQLCommand() As SQLValue
            Get
                Return New SQLValue(NotNull(_sql_command, ""))
            End Get
            Set(ByVal value As SQLValue)
                _sql_command = value.Value
            End Set
        End Property

        ''' <summary>
        ''' Sorgt dafür, dass die Liste von Indicies aus dem gleichnamigen Feld ausgelesen wird
        ''' </summary>
        Public Class IndexListConverter
            Inherits TypeConverter

            Public Overrides Function GetStandardValuesSupported(context As ITypeDescriptorContext) As Boolean
                Return True
            End Function

            Public Overrides Function GetStandardValues(context As ITypeDescriptorContext) As StandardValuesCollection
                Dim indexList = DirectCast(context.Instance, InputProperties).Indicies
                Dim values As New StandardValuesCollection(indexList)
                Return values
            End Function

            Public Overrides Function ConvertTo(context As ITypeDescriptorContext, culture As CultureInfo, value As Object, destinationType As Type) As Object
                If IsNothing(value) Then
                    Return ""
                Else
                    Return value.ToString()
                End If
            End Function
        End Class

        Public Class SQLTypeConverter
            Inherits TypeConverter

            Public Overrides Function ConvertTo(context As ITypeDescriptorContext, culture As Globalization.CultureInfo, value As Object, destinationType As Type) As Object
                'Return MyBase.ConvertTo(context, culture, value, destinationType)
                Dim sqlvalue As SQLValue = DirectCast(value, SQLValue)
                Return sqlvalue.Value
            End Function
        End Class

        ''' <summary>
        ''' Hilfsklasse, die für das anzeigen und abspeichern von SQL-Befehlen verwendet wird
        ''' </summary>
        <Editor(GetType(ClassSQLEditor), GetType(UITypeEditor))>
        <TypeConverter(GetType(SQLTypeConverter))>
        Public Class SQLValue
            Private _value As String

            Public Sub New(value As String)
                Me.Value = value
            End Sub

            Public Property Value As String
                Get
                    Return _value
                End Get
                Set(value As String)
                    _value = value
                End Set
            End Property
        End Class
    End Class

    Public Class TextboxProperties
        Inherits InputProperties

    End Class

    Public Class LabelProperties
        Inherits BaseProperties

        Private _text As String

        <Category("Allgemein")>
        Public Property Text() As String
            Get
                Return _text
            End Get
            Set(value As String)
                _text = value
            End Set
        End Property
    End Class

    Public Class CheckboxProperties
        Inherits InputProperties

        Private _text As String

        <Category("Allgemein")>
        Public Property Text() As String
            Get
                Return _text
            End Get
            Set(value As String)
                _text = value
            End Set
        End Property
    End Class

    Public Class ComboboxProperties
        Inherits InputProperties

        Private _text As String
        Private _choice_list As String
        Private _choice_lists As List(Of String)

        <Category("Allgemein")>
        Public Property Text() As String
            Get
                Return _text
            End Get
            Set(value As String)
                _text = value
            End Set
        End Property

        <Browsable(False)>
        Public Property ChoiceLists() As List(Of String)
            Get
                Return _choice_lists
            End Get
            Set(value As List(Of String))
                _choice_lists = value
            End Set
        End Property

        <Category("Daten")>
        <TypeConverter(GetType(ChoiceListConverter))>
        Public Property ChoiceList() As String
            Get
                Return _choice_list
            End Get
            Set(value As String)
                _choice_list = value
            End Set
        End Property

        Public Class ChoiceListConverter
            Inherits TypeConverter

            Public Overrides Function GetStandardValuesSupported(context As ITypeDescriptorContext) As Boolean
                Return True
            End Function

            Public Overrides Function GetStandardValues(context As ITypeDescriptorContext) As StandardValuesCollection
                Dim choiceListList = DirectCast(context.Instance, ComboboxProperties).ChoiceLists
                Dim values As New StandardValuesCollection(choiceListList)
                Return values
            End Function

            Public Overrides Function ConvertTo(context As ITypeDescriptorContext, culture As CultureInfo, value As Object, destinationType As Type) As Object
                If IsNothing(value) Then
                    Return ""
                Else
                    Return value.ToString()
                End If
            End Function
        End Class
    End Class

    Public Class DatepickerProperties
        Inherits InputProperties
    End Class

    Public Class GridViewProperties
        Inherits InputProperties
    End Class

    Public Class LineLabelProperties
        Inherits BaseProperties

        <Browsable(False)>
        Public Overrides Property Font As Font
            Get
                Return Nothing
            End Get
            Set(value As Font)
            End Set
        End Property
    End Class
End Module