cadmpeg-ir 0.6.2

// SPDX-License-Identifier: Apache-2.0
use crate::math::Point3;

#[test]
fn sampled_carriers_admit_finite_numeric_payloads_and_preserve_failed_edits() {
    use crate::geometry::sampled::{
        PolygonalSurface, PolylineCurve, PolylineSamples, PolylineVertex,
    };
    let points = vec![Point3::new(0.0, 0.0, 0.0), Point3::new(1.0, 0.0, 0.0)];
    let parameterized = |parameters: [f64; 2]| PolylineSamples::Parameterized {
        vertices: points
            .iter()
            .copied()
            .zip(parameters)
            .map(|(point, parameter)| PolylineVertex { parameter, point })
            .collect::<Vec<_>>()
            .try_into()
            .expect("nonempty polyline fixture"),
    };
    assert!(PolylineCurve::new(parameterized([1.0, 1.0]), 0.0,).is_err());
    assert!(PolylineCurve::new(parameterized([0.0, f64::INFINITY]), 0.0,).is_err());
    assert!(PolylineCurve::new(
        PolylineSamples::Unparameterized {
            points: points
                .clone()
                .try_into()
                .expect("nonempty polyline fixture")
        },
        -1.0,
    )
    .is_err());
    let mut polyline = PolylineCurve::new(parameterized([2.0, 1.0]), 0.0).unwrap();
    let original = polyline.clone();
    assert!(polyline
        .edit_samples(|samples| {
            samples.edit_points(|point| {
                point.x = f64::NAN;
                Ok(())
            })
        })
        .is_err());
    assert_eq!(polyline, original);
    assert!(polyline
        .edit_samples(|samples| {
            if let PolylineSamples::Parameterized { vertices } = samples {
                vertices[1].parameter = 2.0;
            }
            Ok(())
        })
        .is_err());
    assert_eq!(polyline, original);
    assert!(polyline.set_chordal_deflection(f64::INFINITY).is_err());
    assert_eq!(polyline, original);
    let mut wire = serde_json::to_value(&polyline).unwrap();
    assert_eq!(wire["samples"]["kind"], "parameterized");
    assert_eq!(
        wire["samples"]["vertices"][0]["parameter"],
        serde_json::json!(2.0)
    );
    assert_eq!(
        serde_json::from_value::<PolylineCurve>(wire.clone()).unwrap(),
        polyline
    );
    // A parameter travels in its own sample row, so a parameter list that does
    // not match the sample count has no spelling; a repeated parameter is still
    // refused by the monotonic mint.
    wire["samples"]["vertices"][1]["parameter"] = serde_json::json!(2.0);
    assert!(serde_json::from_value::<PolylineCurve>(wire.clone()).is_err());
    wire["samples"]["parameters"] = serde_json::json!([1.0, 1.0]);
    assert!(serde_json::from_value::<PolylineCurve>(wire).is_err());
    let mut surface = PolygonalSurface::new(
        vec![
            Point3::new(0.0, 0.0, 0.0),
            Point3::new(1.0, 0.0, 0.0),
            Point3::new(0.0, 1.0, 0.0),
        ],
        vec![[0, 1, 2]],
        0.0,
    )
    .unwrap();
    let original = surface.clone();
    assert!(surface
        .edit_vertices(|vertices| {
            vertices[0].z = f64::INFINITY;
            Ok(())
        })
        .is_err());
    assert_eq!(surface, original);
    assert!(surface.set_chordal_deflection(-1.0).is_err());
    assert_eq!(surface, original);
    let mut wire = serde_json::to_value(&surface).unwrap();
    wire["chordal_deflection"] = serde_json::json!(-1.0);
    assert!(serde_json::from_value::<PolygonalSurface>(wire).is_err());
}
#[test]
fn a_refused_sample_edit_keeps_the_prior_samples() {
    use crate::geometry::sampled::{GeometryLayoutError, PolylineCurve, PolylineSamples};

    let mut polyline = PolylineCurve::new(
        PolylineSamples::Unparameterized {
            points: vec![Point3::new(0.0, 0.0, 0.0), Point3::new(1.0, 0.0, 0.0)]
                .try_into()
                .unwrap(),
        },
        0.0,
    )
    .unwrap();
    let original = polyline.clone();
    let mut seen = 0;
    assert!(polyline
        .edit_samples(|samples| {
            samples.edit_points(|point| {
                seen += 1;
                if seen == 1 {
                    point.x = 9.0;
                    Ok(())
                } else {
                    Err(GeometryLayoutError::EditRefused(
                        "the caller refused this sample".to_string(),
                    ))
                }
            })
        })
        .is_err());
    assert_eq!(seen, 2);
    assert_eq!(polyline, original);
}

#[test]
fn a_refused_polygonal_vertex_edit_keeps_the_prior_vertices() {
    use crate::geometry::sampled::{GeometryLayoutError, PolygonalSurface};

    let mut surface = PolygonalSurface::new(
        vec![
            Point3::new(0.0, 0.0, 0.0),
            Point3::new(1.0, 0.0, 0.0),
            Point3::new(0.0, 1.0, 0.0),
        ],
        vec![[0, 1, 2]],
        0.0,
    )
    .unwrap();
    let original = surface.clone();
    assert!(surface
        .edit_vertices(|vertices| {
            vertices[0].z = 5.0;
            Err(GeometryLayoutError::EditRefused(
                "the caller refused this vertex".to_string(),
            ))
        })
        .is_err());
    assert_eq!(surface, original);
}

#[test]
fn sampled_carriers_hold_their_admitted_chordal_deflection_and_vertices() {
    use crate::features::FinitePoint3;
    use crate::geometry::sampled::{PolygonalSurface, PolylineCurve, PolylineSamples};
    use crate::scalar::NonNegativeReal;

    let vertices = vec![
        Point3::new(0.0, 0.0, 0.0),
        Point3::new(1.0, 0.0, 0.0),
        Point3::new(0.0, 1.0, 0.0),
    ];
    let mut surface = PolygonalSurface::new(vertices.clone(), vec![[0, 1, 2]], 0.25).unwrap();
    assert_eq!(
        surface.chordal_deflection(),
        NonNegativeReal::new(0.25).unwrap()
    );
    surface.set_chordal_deflection(0.5).unwrap();
    assert_eq!(surface.chordal_deflection().get(), 0.5);
    surface
        .edit_vertices(|points| {
            points[2].z = 2.0;
            Ok(())
        })
        .unwrap();
    let wire = serde_json::to_value(&surface).unwrap();
    assert_eq!(wire["chordal_deflection"], serde_json::json!(0.5));
    assert_eq!(
        wire["vertices"][2],
        serde_json::to_value(FinitePoint3::new(Point3::new(0.0, 1.0, 2.0)).unwrap()).unwrap()
    );
    assert_eq!(
        serde_json::from_value::<PolygonalSurface>(wire).unwrap(),
        surface
    );

    let samples = PolylineSamples::Unparameterized {
        points: vertices[..2]
            .to_vec()
            .try_into()
            .expect("nonempty polyline fixture"),
    };
    let polyline = PolylineCurve::new(samples, 0.125).unwrap();
    assert_eq!(
        polyline.chordal_deflection(),
        NonNegativeReal::new(0.125).unwrap()
    );
    let wire = serde_json::to_value(&polyline).unwrap();
    assert_eq!(wire["chordal_deflection"], serde_json::json!(0.125));
    assert_eq!(
        serde_json::from_value::<PolylineCurve>(wire).unwrap(),
        polyline
    );
}

#[test]
fn scaled_deflection_constructors_preserve_output_and_refusal_order() {
    use crate::features::FinitePoint3;
    use crate::geometry::sampled::{PolygonalSurface, PolylineCurve, PolylineSamples};
    use crate::scalar::{NonNegativeReal, PositiveReal};

    let deflection = NonNegativeReal::new(0.25).unwrap();
    let scale = PositiveReal::new(2.0).unwrap();
    let vertices = vec![
        Point3::new(0.0, 0.0, 0.0),
        Point3::new(1.0, 0.0, 0.0),
        Point3::new(0.0, 1.0, 0.0),
    ];
    assert_eq!(
        PolygonalSurface::from_scaled_deflection(
            vertices.clone(),
            vec![[0, 1, 2]],
            deflection,
            scale,
        )
        .unwrap(),
        PolygonalSurface::new(vertices.clone(), vec![[0, 1, 2]], 0.5,).unwrap()
    );
    let samples = PolylineSamples::Unparameterized {
        points: vertices[..2].to_vec().try_into().unwrap(),
    };
    let checked_samples = PolylineSamples::Unparameterized {
        points: vertices[..2]
            .iter()
            .copied()
            .map(|point| FinitePoint3::new(point).expect("finite point"))
            .collect::<Vec<_>>()
            .try_into()
            .unwrap(),
    };
    assert_eq!(
        PolylineCurve::from_scaled_deflection(checked_samples, deflection, scale,).unwrap(),
        PolylineCurve::new(samples, 0.5,).unwrap()
    );

    let overflow = PositiveReal::new(f64::MAX).unwrap();
    let deflection = NonNegativeReal::new(2.0).unwrap();
    let error = PolygonalSurface::from_scaled_deflection(
        vec![Point3::new(f64::NAN, 0.0, 0.0)],
        vec![[0, 1, 2]],
        deflection,
        overflow,
    )
    .unwrap_err();
    assert!(error.to_string().contains("at least three vertices"));
    let error =
        PolygonalSurface::from_scaled_deflection(vertices, vec![[0, 1, 2]], deflection, overflow)
            .unwrap_err();
    assert!(error
        .to_string()
        .contains("chordal_deflection must be finite and non-negative"));
}

#[test]
fn admitted_polygonal_surface_path_preserves_geometry_and_layout_refusal() {
    use crate::features::FinitePoint3;
    use crate::geometry::sampled::PolygonalSurface;
    use crate::scalar::{NonNegativeReal, PositiveReal};

    let vertices = vec![
        Point3::new(0.0, 0.0, 0.0),
        Point3::new(1.0, 0.0, 0.0),
        Point3::new(0.0, 1.0, 0.0),
    ];
    let admitted = vertices
        .iter()
        .copied()
        .map(|point| FinitePoint3::new(point).unwrap())
        .collect::<Vec<_>>();
    let deflection = NonNegativeReal::new(0.25).unwrap();
    let scale = PositiveReal::new(2.0).unwrap();
    assert_eq!(
        PolygonalSurface::from_admitted_scaled_deflection(
            admitted.clone(),
            vec![[0, 1, 2]],
            deflection,
            scale,
        )
        .unwrap(),
        PolygonalSurface::from_scaled_deflection(vertices, vec![[0, 1, 2]], deflection, scale,)
            .unwrap()
    );
    let overflow = PositiveReal::new(f64::MAX).unwrap();
    let deflection = NonNegativeReal::new(2.0).unwrap();
    assert!(PolygonalSurface::from_admitted_scaled_deflection(
        admitted.clone(),
        vec![[0, 1, 3]],
        deflection,
        overflow,
    )
    .unwrap_err()
    .to_string()
    .contains("out-of-range triangle index"));
    assert!(PolygonalSurface::from_admitted_scaled_deflection(
        admitted,
        vec![[0, 1, 2]],
        deflection,
        overflow,
    )
    .unwrap_err()
    .to_string()
    .contains("chordal_deflection must be finite and non-negative"));
}

#[test]
fn admitted_polyline_path_keeps_samples_and_checks_parameter_order() {
    use crate::features::FinitePoint3;
    use crate::geometry::sampled::{
        GeometryLayoutError, PolylineCurve, PolylineSamples, PolylineVertex,
    };
    use crate::scalar::{FiniteReal, NonNegativeReal, PositiveReal};

    let raw = PolylineSamples::Parameterized {
        vertices: vec![
            PolylineVertex {
                parameter: 0.0,
                point: Point3::new(0.0, 0.0, 0.0),
            },
            PolylineVertex {
                parameter: 1.0,
                point: Point3::new(1.0, 0.0, 0.0),
            },
        ]
        .try_into()
        .unwrap(),
    };
    let admitted = PolylineSamples::Parameterized {
        vertices: vec![
            PolylineVertex {
                parameter: FiniteReal::ZERO,
                point: FinitePoint3::ZERO,
            },
            PolylineVertex {
                parameter: FiniteReal::ONE,
                point: FinitePoint3::new(Point3::new(1.0, 0.0, 0.0)).unwrap(),
            },
        ]
        .try_into()
        .unwrap(),
    };
    let deflection = NonNegativeReal::new(0.25).unwrap();
    let scale = PositiveReal::new(2.0).unwrap();
    assert_eq!(
        PolylineCurve::from_scaled_deflection(admitted.clone(), deflection, scale,).unwrap(),
        PolylineCurve::new(raw, deflection.scaled(scale).unwrap().get(),).unwrap(),
    );

    let mut edited = admitted.clone();
    let error = edited
        .edit_admitted_points(|point| {
            if point.x == 1.0 {
                Err(GeometryLayoutError::EditRefused(
                    "refused second point".to_owned(),
                ))
            } else {
                Ok(FinitePoint3::new(Point3::new(2.0, 0.0, 0.0)).unwrap())
            }
        })
        .unwrap_err();
    assert!(error.to_string().contains("refused second point"));
    assert_eq!(edited, admitted);

    let duplicate = PolylineSamples::Parameterized {
        vertices: vec![
            PolylineVertex {
                parameter: FiniteReal::ZERO,
                point: FinitePoint3::ZERO,
            },
            PolylineVertex {
                parameter: FiniteReal::ZERO,
                point: FinitePoint3::ZERO,
            },
        ]
        .try_into()
        .unwrap(),
    };
    assert!(
        PolylineCurve::from_scaled_deflection(duplicate, deflection, scale,)
            .unwrap_err()
            .to_string()
            .contains("strictly monotonic")
    );
}

#[test]
fn a_polyline_holds_its_admitted_samples() {
    use crate::features::FinitePoint3;
    use crate::geometry::sampled::{PolylineCurve, PolylineSamples, PolylineVertex};
    use crate::scalar::FiniteReal;
    let samples = PolylineSamples::Parameterized {
        vertices: vec![
            PolylineVertex {
                parameter: 2.0,
                point: Point3::new(0.0, 0.0, 0.0),
            },
            PolylineVertex {
                parameter: 1.0,
                point: Point3::new(1.0, 0.0, 0.0),
            },
        ]
        .try_into()
        .expect("nonempty polyline fixture"),
    };
    let mut polyline = PolylineCurve::new(samples.clone(), 0.0).unwrap();
    assert_eq!(
        polyline.points().collect::<Vec<_>>(),
        [
            FinitePoint3::new(Point3::new(0.0, 0.0, 0.0)).unwrap(),
            FinitePoint3::new(Point3::new(1.0, 0.0, 0.0)).unwrap(),
        ]
    );
    assert_eq!(
        polyline
            .parameters()
            .map(|parameters| parameters.map(FiniteReal::get).collect::<Vec<_>>()),
        Some(vec![2.0, 1.0])
    );
    // A refused edit keeps the admitted samples.
    let error = polyline
        .edit_samples(|samples| {
            samples.edit_points(|point| {
                point.x = f64::NAN;
                Ok(())
            })
        })
        .unwrap_err();
    assert_eq!(error.to_string(), "points must be finite");
    assert_eq!(polyline, PolylineCurve::new(samples, 0.0,).unwrap());
}

#[test]
fn checked_polyline_samples_keep_parameter_order_and_deflection_rules() {
    use crate::features::FinitePoint3;
    use crate::geometry::sampled::{PolylineCurve, PolylineSamples, PolylineVertex};
    use crate::scalar::FiniteReal;

    let point = |x| FinitePoint3::new(Point3::new(x, 0.0, 0.0)).expect("finite point");
    let parameter = |value| FiniteReal::new(value).expect("finite parameter");
    let samples = |last| PolylineSamples::Parameterized {
        vertices: vec![
            PolylineVertex {
                parameter: parameter(1.0),
                point: point(0.0),
            },
            PolylineVertex {
                parameter: parameter(last),
                point: point(1.0),
            },
        ]
        .try_into()
        .expect("nonempty samples"),
    };
    assert_eq!(
        PolylineCurve::from_checked_samples(samples(2.0), 0.25,).expect("ordered samples"),
        PolylineCurve::new(samples(2.0).to_raw(), 0.25,).expect("same raw samples")
    );
    assert_eq!(
        PolylineCurve::from_checked_samples(samples(1.0), 0.25,)
            .expect_err("equal parameters are refused")
            .to_string(),
        "parameters must be finite and strictly monotonic"
    );
    assert_eq!(
        PolylineCurve::from_checked_samples(samples(2.0), -0.25,)
            .expect_err("negative deviation is refused")
            .to_string(),
        "chordal_deflection must be finite and non-negative"
    );
}

mod construction;

mod polyline_construction;

mod point_edits;