use ui::layout::{CursorState, Vec2};
use winit::event::{MouseButton, WindowEvent};

use crate::testing::Client;

#[derive(Default)]
pub struct Input {
    cursor: CursorState,
}

impl Input {
    pub fn event(&mut self, event: &WindowEvent) {
        match event {
            WindowEvent::CursorMoved { position, .. } => {
                self.cursor.pos = Vec2::new(position.x as f32, position.y as f32);
                self.cursor.exists = true;
            }
            WindowEvent::MouseInput { state, button, .. } => {
                let buttons = &mut self.cursor.buttons;
                let pressed = state.is_pressed();
                match button {
                    MouseButton::Left => buttons.left.update(pressed),
                    MouseButton::Right => buttons.right.update(pressed),
                    MouseButton::Middle => buttons.middle.update(pressed),
                    _ => (),
                }
            }
            WindowEvent::CursorLeft { .. } => {
                self.cursor.exists = false;
            }
            _ => (),
        }
    }

    pub fn end_frame(&mut self) {
        self.cursor.buttons.end_frame();
    }
}

impl Client {
    pub fn window_size(&self) -> Vec2 {
        let size = self.renderer.window().inner_size();
        (size.width, size.height).into()
    }

    pub fn cursor_state(&self) -> &CursorState {
        &self.input.cursor
    }
}