use std::ffi::c_void;

#[cfg(target_os = "windows")]
mod win;
#[cfg(target_os = "windows")]
pub use win::*;

#[cfg(target_os = "linux")]
mod x11;
#[cfg(target_os = "linux")]
pub use crate::x11::*;

#[cfg(target_os = "macos")]
mod macos;
#[cfg(target_os = "macos")]
pub use macos::*;

mod event;
mod keyboard;
mod mouse_cursor;
pub use event::*;
pub use keyboard::*;
pub use mouse_cursor::MouseCursor;

pub enum Parent {
    None,
    AsIfParented,
    WithParent(*mut c_void),
}

unsafe impl Send for Parent {}

pub struct WindowOpenOptions {
    pub title: String,

    pub width: usize,
    pub height: usize,

    pub parent: Parent,
}

pub trait WindowHandler {
    type Message;

    fn build(window: &mut Window) -> Self;

    fn on_frame(&mut self);
    fn on_event(&mut self, window: &mut Window, event: Event);
    fn on_message(&mut self, window: &mut Window, message: Self::Message);
}