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use crate::math::Vector;
use crate::window::{LogicalPosition, LogicalSize};
use crate::keyboard::{KeyCode, ModifiersState};
use crate::mouse::MouseButton;
use crate::touch::TouchPhase;
use crate::gamepad::{GamepadButton, GamepadAxis, GamepadId};
use winit::event::ElementState;

#[derive(Debug, Copy, Clone, Hash, Eq, PartialEq)]
pub(crate) enum KeyState {
    Down,
    Hold,
    Up,
    Idle,
}

#[derive(Debug, Copy, Clone, Hash, Eq, PartialEq)]
pub enum KeyAction {
    Down,
    Up,
}

impl From<ElementState> for KeyAction {
    fn from(state: ElementState) -> Self {
        match state {
            ElementState::Pressed => Self::Down,
            ElementState::Released => Self::Up,
        }
    }
}

impl Into<KeyState> for KeyAction {
    fn into(self) -> KeyState {
        match self {
            Self::Down => KeyState::Down,
            Self::Up => KeyState::Up,
        }
    }
}

#[derive(Debug, Clone, PartialEq)]
pub enum Event {
    AppSuspend,
    AppResume,
    WindowClose,
    WindowResize(LogicalSize),
    WindowMove(LogicalPosition),
    WindowFocusChange(bool),
    ReceiveChar(char),
    KeyboardInput {
        key: KeyCode,
        action: KeyAction,
        repeated: bool,
    },
    ModifiersChange(ModifiersState),
    MouseMove(LogicalPosition),
    MouseEnterWindow,
    MouseLeaveWindow,
    MouseWheelScroll(Vector),
    MouseInput {
        button: MouseButton,
        action: KeyAction,
    },
    Touch {
        id: u64,
        phase: TouchPhase,
        position: LogicalPosition,
    },
    TouchpadScroll {
        delta: Vector,
        phase: TouchPhase,
    },
    TouchpadPress {
        pressure: f32,
        click_stage: i64,
    },
    GamepadConnect(GamepadId),
    GamepadDisconnect(GamepadId),
    GamepadButtonInput {
        id: GamepadId,
        button: GamepadButton,
        action: KeyAction,
    },
    GamepadButtonChange {
        id: GamepadId,
        button: GamepadButton,
        value: f32,
    },
    GamepadAxisChange {
        id: GamepadId,
        axis: GamepadAxis,
        value: f32,
    },
}