/**
 * Author: Simon-Pierre Boucher
 * Contact: contact@spboucher.ai
 * Project: Groupe Ka / Ka Maps
 */

import { describe, expect, it } from "vitest";
import {
  computeLensStats,
  propertiesInBBox,
  propertiesInPolygon,
} from "../src/utils/lens.js";
import type { MapProperty } from "../src/types/index.js";

function prop(over: Partial<MapProperty>): MapProperty {
  return {
    id: over.id ?? Math.random().toString(36),
    appSource: "lou-ka",
    latitude: 46.8,
    longitude: -71.2,
    kind: "listing",
    ...over,
  };
}

describe("computeLensStats", () => {
  it("computes medians and type mix from real fields only", () => {
    const stats = computeLensStats([
      prop({ price: 300_000, propertyType: "Maison", daysOnMarket: 10 }),
      prop({ price: 500_000, propertyType: "Maison", daysOnMarket: 100 }),
      prop({ price: 700_000, propertyType: "Condo", priceChange: -0.05 }),
    ]);
    expect(stats.count).toBe(3);
    expect(stats.medianPrice).toBe(500_000);
    expect(stats.medianDaysOnMarket).toBe(55);
    expect(stats.stale90dShare).toBe(0.5);
    expect(stats.priceCutShare).toBeCloseTo(1 / 3);
    expect(stats.typeMix?.["Maison"]).toBeCloseTo(2 / 3);
    // pas de valeurs estimées dans les données → pas de médiane inventée
    expect(stats.medianEstimatedValue).toBeUndefined();
  });

  it("returns bare count on empty/opaque data", () => {
    const stats = computeLensStats([]);
    expect(stats).toEqual({ count: 0 });
  });
});

describe("geographic selection", () => {
  const items = [
    prop({ id: "in", latitude: 46.8, longitude: -71.2 }),
    prop({ id: "out", latitude: 45.5, longitude: -73.6 }),
  ];

  it("filters by bbox", () => {
    const sel = propertiesInBBox(items, {
      west: -71.4,
      south: 46.7,
      east: -71.0,
      north: 46.9,
    });
    expect(sel.map((p) => p.id)).toEqual(["in"]);
  });

  it("filters by polygon (ray casting)", () => {
    const sel = propertiesInPolygon(items, {
      type: "Polygon",
      coordinates: [[[-71.4, 46.7], [-71.0, 46.7], [-71.0, 46.9], [-71.4, 46.9], [-71.4, 46.7]]],
    });
    expect(sel.map((p) => p.id)).toEqual(["in"]);
  });
});