/**
 * Released games (#266): the link a project is played by, what the release dialog says about it,
 * and the run a released game shares with the editor's Play – one way to start, tick, swap scenes
 * and end, whichever page it is on.
 */
import { beforeAll, describe, expect, it } from 'vitest';
import { CreateAssetCommand } from '../../src/core/commands/assetCommands';
import type { SavedValues } from '../../src/core/graph';
import type { PropertyBag } from '../../src/core/model/Properties';
import { releaseToken, releaseUrl, type ReleaseSummary } from '../../src/core/store/ReleaseStore';
import { releaseState, releaseWarnings } from '../../src/editor/releases';
import { saveArea, saveKey } from '../../src/editor/saves';
import { snapshotBlocker } from '../../src/editor/snapshots';
import { GameRun, type RunServices } from '../../src/runtime/GameRun';
import { loadPhysics, type Rapier } from '../../src/runtime/physics/engine';
import { SILENT_AUDIO } from '../../src/runtime/systems/Audio';
import { Input } from '../../src/runtime/systems/Input';
import {
  graphEditor,
  makeBehavior,
  makeSpriteScene,
  makeVariables,
  place,
  type SceneFixture,
} from '../helpers';

const TOKEN = '0123456789abcdef0123456789abcdef';

let physics: Rapier;
beforeAll(async () => {
  physics = await loadPhysics();
});

describe('the link of a release', () => {
  it('leads to the play page with the token, and the play page reads it back', () => {
    const url = releaseUrl('https://nockal.com', TOKEN);
    expect(url).toBe(`https://nockal.com/game-maker/play.html?game=${TOKEN}`);
    expect(releaseToken(new URL(url).search)).toBe(TOKEN);
  });

  it('takes nothing from an address that carries no token of the right shape', () => {
    expect(releaseToken('')).toBeNull();
    expect(releaseToken('?game=')).toBeNull();
    expect(releaseToken('?game=2072b56583af')).toBeNull();
    expect(releaseToken(`?game=${TOKEN.toUpperCase()}`)).toBeNull();
    expect(releaseToken(`?game=../${TOKEN}`)).toBeNull();
  });
});

describe('the release dialog', () => {
  const release = (revision: number): ReleaseSummary => ({
    token: TOKEN,
    revision,
    publishedAt: '2026-09-29T10:39:31Z',
  });

  it('says whether the saved project has moved on since the copy was taken', () => {
    expect(releaseState(null, 3)).toMatch(/^Not released/);
    expect(releaseState(release(3), 3)).toMatch(
      /^Released 2026-09-29 \d\d:39 · the link plays the project as saved$/,
    );
    expect(releaseState(release(3), 5)).toMatch(/the project has changed since$/);
  });

  it('warns about a project without a scene and about plugins, and about nothing else', () => {
    const f = makeSpriteScene('Box');
    expect(releaseWarnings(f.project)).toEqual([]);
    f.project.plugins = ['inventory.js'];
    expect(releaseWarnings(f.project)).toEqual([expect.stringMatching(/^Plugins are not loaded/)]);
    f.project.plugins = [];
    f.project.assets = f.project.assets.filter((a) => a.type !== 'scene');
    expect(releaseWarnings(f.project)).toEqual([expect.stringMatching(/no scene/)]);
  });

  it('refuses to publish what is not saved, like a snapshot', () => {
    expect(snapshotBlocker('saved', 'release')).toBeNull();
    expect(snapshotBlocker('dirty', 'release')).toMatch(/not saved yet/);
    expect(snapshotBlocker('error', 'release')).toMatch(/nothing current to release$/);
    expect(snapshotBlocker('error')).toMatch(/nothing current to take a snapshot of$/);
  });

  it('keeps a released game’s saves under its link, apart from the project’s', () => {
    const store = new Map<string, string>();
    const memory = {
      getItem: (key: string) => store.get(key) ?? null,
      setItem: (key: string, value: string) => void store.set(key, value),
      removeItem: (key: string) => void store.delete(key),
    };
    const saved: SavedValues = { vars: { score: 3 } };
    saveArea(TOKEN, 'release', memory).write(saved);
    expect([...store.keys()]).toEqual([saveKey(TOKEN, 'release')]);
    expect(saveArea('project', 'play', memory).read()).toEqual({});
  });
});

describe('a run of the game', () => {
  function services(): RunServices {
    const saved: SavedValues = {};
    return {
      audio: SILENT_AUDIO,
      physics,
      clock: { scale: 1 },
      saves: { read: () => saved, write: (values) => Object.assign(saved, values) },
    };
  }

  /** A behavior below a box that runs `type` on its first frame. */
  function onStart(f: SceneFixture, type: string, params: PropertyBag = {}) {
    const behavior = makeBehavior(f, 'Logic');
    const box = place(f, f.spriteId, { x: 0, y: 0 });
    place(f, behavior.id, { x: 0, y: 0 }, box);
    const edit = graphEditor(f, behavior);
    const start = edit.addNode('OnStart');
    const node = edit.addNode(type, params);
    edit.connect(start, 'exec', node, 'exec');
  }

  it('reports nothing while the game just runs', () => {
    const f = makeSpriteScene('Box');
    place(f, f.spriteId, { x: 0, y: 0 });
    const run = GameRun.start(f.project, f.sceneId, new Input(), services());
    expect(run.tick(1 / 60, 1 / 60)).toBeNull();
    expect(run.world.entities.map((e) => e.name)).toContain('Box');
  });

  it('reports a Stop game and a Restart game for the page to act on', () => {
    const stopping = makeSpriteScene('Box');
    onStart(stopping, 'StopGame');
    expect(
      GameRun.start(stopping.project, stopping.sceneId, new Input(), services()).tick(0.016, 0.016),
    ).toBe('stop');

    const restarting = makeSpriteScene('Box');
    onStart(restarting, 'RestartGame');
    expect(
      GameRun.start(restarting.project, restarting.sceneId, new Input(), services()).tick(0.016, 0.016),
    ).toBe('restart');
  });

  it('carries out a Load scene itself, and carries the shared variables into the new world', () => {
    const f = makeSpriteScene('Box');
    const second = new CreateAssetCommand('scene', 'Level 2');
    f.stack.execute(second);
    const vars = makeVariables(f, 'Game', ['score']);
    onStart(f, 'LoadScene', { scene: second.asset.id });

    const run = GameRun.start(f.project, f.sceneId, new Input(), services());
    const first = run.world;
    run.behaviors.liveVariables(vars.id)!.score = 7;
    expect(run.tick(0.016, 0.016)).toBe('scene');
    expect(run.world).not.toBe(first);
    expect(run.world.sceneId).toBe(second.asset.id);
    expect(run.behaviors.liveVariables(vars.id)?.score).toBe(7);
    expect(run.world.entities.some((e) => e.name === 'Box')).toBe(false);
  });
});