import { describe, expect, it } from "vitest";
import {
  encounterWorldIsReady,
  encounterWorldKey,
  rendererCanvasKey,
  sceneFrameLoop,
} from "./sceneLifecycle";

describe("R3F scene lifecycle", () => {
  it("keeps the WebGL renderer stable while encounter worlds change", () => {
    expect(rendererCanvasKey(0)).toBe(rendererCanvasKey(0));
    expect(rendererCanvasKey(0)).not.toBe(rendererCanvasKey(1));
    expect(encounterWorldKey("wailing-caverns", 1))
      .not.toBe(encounterWorldKey("wailing-caverns", 2));
  });

  it("only accepts collision readiness from the current encounter world", () => {
    expect(encounterWorldIsReady(null, 4)).toBe(false);
    expect(encounterWorldIsReady(4, 4)).toBe(true);
    expect(encounterWorldIsReady(4, 5)).toBe(false);
  });

  it("renders local paused worlds on demand without stalling loading or online worlds", () => {
    const readyWorld = {
      worldReady: true,
      graphicsRecovering: false,
      sharedOnline: false,
      paused: false,
      mapOpen: false,
      companionOpen: false,
      documentVisible: true,
      frameRateLimit: 60 as const,
    };
    expect(sceneFrameLoop({ ...readyWorld, paused: true })).toBe("demand");
    expect(sceneFrameLoop({ ...readyWorld, mapOpen: true })).toBe("demand");
    expect(sceneFrameLoop({ ...readyWorld, companionOpen: true })).toBe("demand");
    expect(sceneFrameLoop({ ...readyWorld, paused: true, sharedOnline: true })).toBe("never");
    expect(sceneFrameLoop({ ...readyWorld, paused: true, worldReady: false })).toBe("never");
    expect(sceneFrameLoop({ ...readyWorld, paused: true, graphicsRecovering: true })).toBe("never");
    expect(sceneFrameLoop(readyWorld)).toBe("never");
    expect(sceneFrameLoop({ ...readyWorld, frameRateLimit: "display" })).toBe("always");
    expect(sceneFrameLoop({ ...readyWorld, documentVisible: false })).toBe("demand");
    expect(sceneFrameLoop({ ...readyWorld, documentVisible: false, sharedOnline: true })).toBe("never");
  });
});