use geo::algorithm::line_measures::{Euclidean, Length};
use geo::{Centroid, Contains, Point, Polygon};

use crate::geometry::shape::{AccessShape, MeasureLength};

#[derive(Debug, Clone, PartialEq)]
pub struct PolyShape {
    pub polygon: Polygon,
}

impl MeasureLength for PolyShape {
    fn length(&self) -> f64 {
        let mut length = 0.0;

        for line in self.polygon.exterior().lines() {
            length += line.length::<Euclidean>();
        }

        length
    }
}

impl AccessShape for PolyShape {
    fn center(&self) -> Point {
        self.polygon.centroid().unwrap()
    }

    fn contains_point(&self, p: Point) -> bool {
        self.polygon.contains(&p)
    }
}