use iced::time::Instant;
use iced::Point;

/// Mouse / selection interaction state for the viewport.
#[derive(Clone, Default)]
pub struct SelectionState {
    pub vp_size: (f32, f32),
    pub box_anchor: Option<Point>,
    /// World point under the box-selection anchor, so the anchor can be
    /// re-projected to screen when the camera zooms/pans mid-drag instead of
    /// staying frozen at its original pixel (which selected the wrong area).
    /// (#234)
    pub box_anchor_world: Option<glam::DVec3>,
    pub box_current: Option<Point>,
    pub box_last: Option<(Point, Point)>,
    pub box_crossing: bool,
    pub box_last_crossing: bool,
    pub poly_active: bool,
    pub poly_points: Vec<Point>,
    pub poly_crossing: bool,
    pub poly_last_crossing: bool,
    pub context_menu: Option<Point>,
    /// True while the context menu's Draw Order sub-items are expanded.
    pub draworder_submenu: bool,
    pub last_move_pos: Option<Point>,
    pub left_down: bool,
    pub left_press_pos: Option<Point>,
    pub left_press_time: Option<Instant>,
    pub left_dragging: bool,
    pub right_down: bool,
    pub right_press_pos: Option<Point>,
    pub right_press_time: Option<Instant>,
    pub right_dragging: bool,
    pub right_last_pos: Option<Point>,
    /// World point the current orbit drag revolves around (selection or model
    /// centre), captured when the drag starts so it stays fixed for the whole
    /// gesture. `None` when no orbit is in progress. (#229)
    pub orbit_pivot: Option<glam::DVec3>,
    /// While a command is active, a right-click acts as Enter; the *next*
    /// consecutive right-click opens the context menu instead. This tracks
    /// whether the previous right-click already fired Enter. Reset by any
    /// other interaction (left-click pick, a new command) and on viewport exit.
    pub right_click_entered: bool,
    pub middle_down: bool,
    pub middle_last_pos: Option<Point>,
    pub middle_last_press_time: Option<Instant>,
}