import { createPlaytest } from '@playbox-ai/playable-playtest';
import { attachPlaytestDebug, type PauseController } from '@playbox-ai/playable-playtest/debug';
import { attachPlaytestPreview } from '@playbox-ai/playable-playtest/preview';

export interface GameView {
  ready: boolean;
  phase: 'playing' | 'won' | 'lost';
  timeRemaining: number;
  player: { x: number; y: number; health: number; isGrounded: boolean };
  collected: number;
  required: number;
}

/** Call once from the real game bootstrap, not once per frame. */
export function installPlaytest(game: GameView, previewEnabled: boolean, buildId: string, pauseController?: PauseController) {
  const session = Array.from(crypto.getRandomValues(new Uint32Array(4)), n => n.toString(16)).join('-');
  let round = 1;
  const playtest = createPlaytest({ enabled: previewEnabled, buildId, runId: `${session}:${round}` });
  playtest.exposeState({
    schemaVersion: 1,
    description: 'phase: playing/won/lost; position: world units, +X right, +Y up; timeRemaining: seconds. canJump means grounded, not a command.',
    isReady: () => game.ready,
    read: () => ({
      phase: game.phase,
      timeRemaining: game.timeRemaining,
      player: { position: { x: game.player.x, y: game.player.y }, health: game.player.health, canJump: game.player.isGrounded },
      objective: { collected: game.collected, required: game.required },
    }),
  });
  const detach = attachPlaytestPreview(playtest);
  const detachDebug = attachPlaytestDebug(playtest, { pauseController });
  return {
    playtest,
    /** Invoke before the existing restart resets objects; set ready after it completes. */
    beforeRestart() { game.ready = false; playtest.startRun(`${session}:${++round}`); },
    dispose() { detachDebug(); detach(); playtest.dispose(); },
  };
}