import { describe, expect, it } from "vitest";
import {
  DEFAULT_THREAT_METER_POSITION,
  clampHudPositionToViewport,
  normalizeHudPosition,
} from "./hudLayout";

describe("movable HUD positioning", () => {
  it("normalizes invalid and out-of-range saved positions", () => {
    expect(normalizeHudPosition(null)).toBe(DEFAULT_THREAT_METER_POSITION);
    expect(normalizeHudPosition({ x: -4, y: 3 })).toEqual({ x: 0, y: 1 });
    expect(normalizeHudPosition({ x: Number.NaN, y: 0.4 })).toEqual({
      x: DEFAULT_THREAT_METER_POSITION.x,
      y: 0.4,
    });
  });

  it("keeps a center-anchored widget completely inside desktop and mobile viewports", () => {
    expect(clampHudPositionToViewport(
      { x: 1, y: 0 },
      { width: 1_280, height: 720 },
      { width: 156, height: 92 },
    )).toEqual({
      x: (1_280 - 84) / 1_280,
      y: 52 / 720,
    });
    expect(clampHudPositionToViewport(
      { x: 1, y: 1 },
      { width: 390, height: 844 },
      { width: 156, height: 92 },
    )).toEqual({
      x: (390 - 84) / 390,
      y: (844 - 52) / 844,
    });
  });
});