using Engine.Core;

namespace Engine.Integration.SDL3;

public interface IWindow : IBehaviour
{
    Event<IWindow, StateChangedArguments> OnStateChanged { get; }
    Event<IWindow, FocusStateChangedArguments> OnFocusStateChanged { get; }
    Event<IWindow, ModeChangedArguments> OnModeChanged { get; }
    Event<IWindow, ShowStateChangedArguments> OnShowStateChanged { get; }
    Event<IWindow, ResizeModeChangedArguments> OnResizeModeChanged { get; }

    Event<IWindow, TitleChangedArguments> OnTitleChanged { get; }
    Event<IWindow, TargetFpsChangedArguments> OnTargetFpsChanged { get; }
    Event<IWindow, SizeChangedArguments> OnSizeChanged { get; }
    Event<IWindow, BackgroundColorChangedArguments> OnBackgroundColorChanged { get; }

    WindowState State { get; set; }
    WindowFocusState FocusState { get; }
    WindowMode Mode { get; set; }
    WindowShowState ShowState { get; set; }
    WindowResizeMode ResizeMode { get; set; }

    string Title { get; set; }
    uint TargetFps { get; set; }
    Vector2DInt Size { get; set; }
    ColorRGB BackgroundColor { get; set; }

    readonly record struct StateChangedArguments(WindowState PreviousState);
    readonly record struct FocusStateChangedArguments(WindowFocusState PreviousFocusState);
    readonly record struct ModeChangedArguments(WindowMode PreviousMode);
    readonly record struct ShowStateChangedArguments(WindowShowState PreviousShowState);
    readonly record struct ResizeModeChangedArguments(WindowResizeMode PreviousResizeMode);
    readonly record struct TitleChangedArguments(string PreviousTitle);
    readonly record struct TargetFpsChangedArguments(uint PreviousTargetFps);
    readonly record struct SizeChangedArguments(Vector2DInt PreviousSize);
    readonly record struct BackgroundColorChangedArguments(ColorRGB PreviousColor);
}

public enum WindowFocusState
{
    Focused,
    Unfocused
}

public enum WindowState
{
    Open,
    Closed
}

public enum WindowMode
{
    Windowed,
    Fullscreen,
    BorderlessFullscreen,
    BorderlessWindowed
}

public enum WindowShowState
{
    Normal,
    Minimized,
    Maximized
}

public enum WindowResizeMode
{
    Fixed,
    Resizable,
    AspectLocked
}