import { describe, expect, it } from 'vitest';

import { AnimationState, type GameState, type StoryMoment } from '../../types';
import { buildStoryContextFromState } from './storyContextBuilder';

function createState(overrides: Partial<GameState> = {}): GameState {
  return {
    worldType: 'WUXIA',
    runtimeSessionId: 'runtime-main',
    runtimeActionVersion: 3,
    runtimeMode: 'play',
    runtimePersistenceDisabled: false,
    playerHp: 30,
    playerMaxHp: 40,
    playerMana: 12,
    playerMaxMana: 20,
    inBattle: false,
    playerX: 0,
    playerFacing: 'right',
    animationState: AnimationState.IDLE,
    playerSkillCooldowns: {},
    currentScenePreset: {
      id: 'forest-trail',
      name: '林间小径',
      description: '风声穿过树梢。',
    },
    ...overrides,
  } as GameState;
}

describe('storyContextBuilder', () => {
  it('keeps normal play context lightweight', () => {
    const context = buildStoryContextFromState(createState());

    expect(context.runtimeSessionId).toBe('runtime-main');
    expect(context.runtimeSnapshot).toBeUndefined();
  });

  it('attaches transient snapshot for disabled persistence runtime', () => {
    const state = createState({
      runtimeSessionId: 'runtime-preview',
      runtimePersistenceDisabled: true,
    });
    const currentStory: StoryMoment = {
      text: '断桥客站在风口，等你先开口。',
      options: [],
    };

    const context = buildStoryContextFromState(state, { currentStory });

    expect(context.runtimeSnapshot).toEqual({
      bottomTab: 'adventure',
      gameState: state,
      currentStory,
    });
  });
});