module flow.data.base;

import std.signals;
import std.uuid;

import flow.type.base;

mixin template DataProperty(T, string name)
{
    mixin("T " ~ name ~ ";");
    mixin("void " ~ name ~ "(T value){}");
    mixin("T " ~ name ~ "(){}");
}

class PropertyEventArgs : EventArgs { }

class PropertyChangingEventArgs : PropertyEventArgs { }

class PropertyChangedEventArgs : PropertyEventArgs { }

struct PropertyChangingSignal { mixin Signal!(Object, PropertyChangingEventArgs); }

struct PropertyChangedSignal
{
    mixin Signal!(Object, PropertyChangedEventArgs);
}

abstract class DataObject
{
    mixin DataProperty!(UUID, name);

    immutable PropertyChangingSignal propertyChanged;

    immutable PropertyChangingSignal propertyChanging;
}