import assert from "node:assert";
import {
  describe,
  test,
} from "node:test";
import { getNextClustersByPointClick } from "./getNextClustersByPointClick";
import type { TCluster } from "../../config/types/index";

const getBaseClusters = (): TCluster[] => ([
  {
    id: "cluster-1",
    points: [
      {
        id: "point-1",
        coords: [ 55.751244, 37.618423 ],
        state: {
          isActive: false,
          isDisabled: false,
        },
      },
      {
        id: "point-2",
        coords: [ 55.751444, 37.618923 ],
        state: {
          isActive: false,
          isDisabled: false,
        },
      },
    ],
  },
]);

describe("getNextClustersByPointClick", () => {
  test("activates first point on first click (single active mode)", () => {
    const { nextClusters, nextIsActive } = getNextClustersByPointClick({
      clusters: getBaseClusters(),
      pointId: "point-1",
      maxActivePoints: 1,
    });

    const [ point1, point2 ] = nextClusters[0].points;
    assert.strictEqual(nextIsActive, true);
    assert.strictEqual(point1.state?.isActive, true);
    assert.strictEqual(point2.state?.isActive, false);
  });

  test("switches active point when clicking second point after first", () => {
    const firstClick = getNextClustersByPointClick({
      clusters: getBaseClusters(),
      pointId: "point-1",
      maxActivePoints: 1,
    }).nextClusters;

    const secondClick = getNextClustersByPointClick({
      clusters: firstClick,
      pointId: "point-2",
      maxActivePoints: 1,
    });

    const [ point1, point2 ] = secondClick.nextClusters[0].points;
    assert.strictEqual(secondClick.nextIsActive, true);
    assert.strictEqual(point1.state?.isActive, false);
    assert.strictEqual(point2.state?.isActive, true);
  });

  test("deactivates currently active point on second click", () => {
    const firstClick = getNextClustersByPointClick({
      clusters: getBaseClusters(),
      pointId: "point-1",
      maxActivePoints: 1,
    }).nextClusters;

    const secondClick = getNextClustersByPointClick({
      clusters: firstClick,
      pointId: "point-1",
      maxActivePoints: 1,
    });

    const [ point1, point2 ] = secondClick.nextClusters[0].points;
    assert.strictEqual(secondClick.nextIsActive, false);
    assert.strictEqual(point1.state?.isActive, false);
    assert.strictEqual(point2.state?.isActive, false);
  });
});