import type { Map as MapLibreMap } from "maplibre-gl";
import { describe, expect, it, vi } from "vitest";
import { fitNetworkBounds } from "./camera";
import { WATER_NETWORK_GLOBAL_VIEW } from "./sources";

describe("fitNetworkBounds", () => {
  it("fits the global WebMercator bbox through MapLibre lng/lat bounds", () => {
    const fitBounds = vi.fn();
    const map = {
      fitBounds,
      getCanvas: () => ({
        clientWidth: 1280,
        clientHeight: 720,
        width: 1280,
        height: 720
      })
    } as unknown as MapLibreMap;

    fitNetworkBounds(map, WATER_NETWORK_GLOBAL_VIEW);

    expect(fitBounds).toHaveBeenCalledTimes(1);
    const [bounds, options] = fitBounds.mock.calls[0] ?? [];

    expect(bounds[0][0]).toBeCloseTo(121.735034, 6);
    expect(bounds[0][1]).toBeCloseTo(30.846365, 6);
    expect(bounds[1][0]).toBeCloseTo(121.970518, 6);
    expect(bounds[1][1]).toBeCloseTo(30.994738, 6);
    expect(options).toMatchObject({
      duration: 600,
      maxZoom: 12,
      padding: { top: 48, right: 48, bottom: 48, left: 48 }
    });
    expect(options).not.toHaveProperty("zoom");
  });
});