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

import type {
  PuzzleAnchorPack,
  PuzzleDraftLevel,
  PuzzleGeneratedImageCandidate,
  PuzzleResultDraft,
} from '../../../packages/shared/src/contracts/puzzleAgentDraft';
import type { PuzzleAgentSessionSnapshot } from '../../../packages/shared/src/contracts/puzzleAgentSession';
import {
  hasRecoverableGeneratedPuzzleDraft,
  normalizeRecoveredPuzzleDraftSession,
} from './platformPuzzleDraftRecoveryModel';

function buildAnchorPack(): PuzzleAnchorPack {
  const item = {
    key: 'theme',
    label: '主题',
    value: '星桥机关',
    status: 'confirmed' as const,
  };
  return {
    themePromise: item,
    visualSubject: item,
    visualMood: item,
    compositionHooks: item,
    tagsAndForbidden: item,
  };
}

function buildCandidate(
  overrides: Partial<PuzzleGeneratedImageCandidate> = {},
): PuzzleGeneratedImageCandidate {
  return {
    candidateId: 'candidate-1',
    imageSrc: '/candidate-cover.png',
    assetId: 'asset-candidate-cover',
    prompt: '星桥机关',
    sourceType: 'generated',
    selected: true,
    ...overrides,
  };
}

function buildLevel(overrides: Partial<PuzzleDraftLevel> = {}): PuzzleDraftLevel {
  return {
    levelId: 'level-1',
    levelName: '星桥机关',
    pictureDescription: '星桥机关画面',
    candidates: [buildCandidate()],
    selectedCandidateId: null,
    coverImageSrc: null,
    coverAssetId: null,
    generationStatus: 'generating',
    ...overrides,
  };
}

function buildDraft(overrides: Partial<PuzzleResultDraft> = {}): PuzzleResultDraft {
  const anchorPack = buildAnchorPack();
  return {
    workTitle: '星桥拼图',
    workDescription: '修复星桥机关。',
    levelName: '星桥机关',
    summary: '把碎片拼回原位。',
    themeTags: ['星桥', '机关', '修复'],
    forbiddenDirectives: [],
    creatorIntent: null,
    anchorPack,
    candidates: [],
    selectedCandidateId: null,
    coverImageSrc: null,
    coverAssetId: null,
    generationStatus: 'generating',
    levels: [buildLevel()],
    ...overrides,
  };
}

function buildSession(
  overrides: Partial<PuzzleAgentSessionSnapshot> = {},
): PuzzleAgentSessionSnapshot {
  const anchorPack = buildAnchorPack();
  return {
    sessionId: 'puzzle-session-1',
    seedText: '星桥',
    currentTurn: 1,
    progressPercent: 100,
    stage: 'draft_ready',
    anchorPack,
    draft: buildDraft(),
    messages: [],
    lastAssistantReply: null,
    publishedProfileId: null,
    suggestedActions: [],
    resultPreview: null,
    updatedAt: '2026-06-01T10:00:00.000Z',
    ...overrides,
  };
}

function withCompleteLevelAssets(
  overrides: Partial<PuzzleDraftLevel> = {},
): PuzzleDraftLevel {
  return buildLevel({
    levelSceneImageSrc: '/level-scene.png',
    uiSpritesheetImageSrc: '/ui-spritesheet.png',
    levelBackgroundImageSrc: '/level-background.png',
    ...overrides,
  });
}

describe('platformPuzzleDraftRecoveryModel', () => {
  test('normalizes and marks recovered puzzle draft ready when asset pack is complete', () => {
    const normalized = normalizeRecoveredPuzzleDraftSession(
      buildSession({
        draft: buildDraft({
          levels: [withCompleteLevelAssets()],
        }),
      }),
    );

    expect(hasRecoverableGeneratedPuzzleDraft(normalized)).toBe(true);
    expect(normalized.draft).toMatchObject({
      coverImageSrc: '/candidate-cover.png',
      coverAssetId: 'asset-candidate-cover',
      selectedCandidateId: 'candidate-1',
      generationStatus: 'ready',
    });
    expect(normalized.draft?.levels?.[0]).toMatchObject({
      coverImageSrc: '/candidate-cover.png',
      coverAssetId: 'asset-candidate-cover',
      selectedCandidateId: 'candidate-1',
      generationStatus: 'ready',
    });
  });

  test('keeps half-finished draft generating when only cover candidate exists', () => {
    const normalized = normalizeRecoveredPuzzleDraftSession(buildSession());

    expect(hasRecoverableGeneratedPuzzleDraft(normalized)).toBe(false);
    expect(normalized.draft).toMatchObject({
      coverImageSrc: '/candidate-cover.png',
      generationStatus: 'generating',
    });
    expect(normalized.draft?.levels?.[0]).toMatchObject({
      coverImageSrc: '/candidate-cover.png',
      generationStatus: 'generating',
    });
  });

  test('requires level scene, ui spritesheet and level background assets together', () => {
    expect(
      hasRecoverableGeneratedPuzzleDraft(
        buildSession({
          draft: buildDraft({
            coverImageSrc: '/draft-cover.png',
            levels: [
              withCompleteLevelAssets({
                uiSpritesheetImageSrc: null,
                uiSpritesheetImageObjectKey: null,
              }),
            ],
          }),
        }),
      ),
    ).toBe(false);
  });

  test('accepts object keys as recovered asset references', () => {
    expect(
      hasRecoverableGeneratedPuzzleDraft(
        buildSession({
          draft: buildDraft({
            coverImageSrc: '/draft-cover.png',
            levels: [
              buildLevel({
                levelSceneImageObjectKey: 'level-scene.png',
                uiSpritesheetImageObjectKey: 'ui-spritesheet.png',
                levelBackgroundImageObjectKey: 'level-background.png',
              }),
            ],
          }),
        }),
      ),
    ).toBe(true);
  });

  test('leaves sessions without draft unchanged and unrecoverable', () => {
    const session = buildSession({ draft: null });

    expect(normalizeRecoveredPuzzleDraftSession(session)).toBe(session);
    expect(hasRecoverableGeneratedPuzzleDraft(session)).toBe(false);
  });
});