/**
 * Author: Simon-Pierre Boucher
 * Contact: contact@spboucher.ai
 * Project: Groupe Ka / Ka Maps
 *
 * bboxOfProperties + pointInPolygon — les briques géométriques de la
 * synchronisation liste ↔ carte (fitBounds sur les résultats, zone dessinée).
 */
import { describe, expect, it } from "vitest";
import { bboxOfProperties, pointInPolygon } from "../src/utils/geo.js";
import type { MapProperty } from "../src/types/index.js";

const prop = (lat: number, lng: number): MapProperty => ({
  id: `${lat},${lng}`,
  appSource: "lou-ka",
  latitude: lat,
  longitude: lng,
  kind: "listing",
});

describe("bboxOfProperties", () => {
  it("englobe tous les points", () => {
    const bbox = bboxOfProperties([prop(46.8, -71.2), prop(45.5, -73.6), prop(46.3, -72.5)]);
    expect(bbox).toEqual({ west: -73.6, south: 45.5, east: -71.2, north: 46.8 });
  });

  it("ignore les coordonnées invalides (0,0 sentinelle)", () => {
    const bbox = bboxOfProperties([prop(0, 0), prop(46.8, -71.2)]);
    expect(bbox).toEqual({ west: -71.2, south: 46.8, east: -71.2, north: 46.8 });
  });

  it("null quand rien n'est géolocalisé", () => {
    expect(bboxOfProperties([prop(0, 0)])).toBeNull();
    expect(bboxOfProperties([])).toBeNull();
  });
});

describe("pointInPolygon", () => {
  // triangle autour du Vieux-Québec
  const ring: [number, number][] = [
    [-71.24, 46.80],
    [-71.20, 46.82],
    [-71.24, 46.83],
  ];

  it("dedans", () => {
    expect(pointInPolygon(-71.228, 46.817, ring)).toBe(true);
  });

  it("dehors", () => {
    expect(pointInPolygon(-71.30, 46.81, ring)).toBe(false);
    expect(pointInPolygon(-71.21, 46.79, ring)).toBe(false);
  });

  it("polygone concave", () => {
    const u: [number, number][] = [
      [0, 0], [4, 0], [4, 4], [3, 4], [3, 1], [1, 1], [1, 4], [0, 4],
    ];
    expect(pointInPolygon(0.5, 2, u)).toBe(true);    // branche gauche du U
    expect(pointInPolygon(2, 2, u)).toBe(false);     // creux du U
    expect(pointInPolygon(3.5, 2, u)).toBe(true);    // branche droite
  });
});