import { describe, expect, it } from 'vitest';
import {
  filterComment,
  filterGroup,
  filterPage,
  filterSearchResult,
  filterSpace,
  filterWorkspace,
} from '../packages/docmost-client/src/lib/filters.js';

describe('filterPage', () => {
  const basePage = {
    id: 'pg1',
    slugId: 'slug-1',
    title: 'Title',
    parentPageId: 'parent-1',
    spaceId: 'space-1',
    isLocked: false,
    createdAt: '2024-01-01',
    updatedAt: '2024-01-02',
    deletedAt: null,
    // Extra fields that must be dropped by the filter.
    secret: 'should-not-leak',
  };

  it('omits the content key when no content arg is given', () => {
    const result = filterPage(basePage);
    expect(result).not.toHaveProperty('content');
    expect(result).not.toHaveProperty('secret');
    expect(result.id).toBe('pg1');
  });

  it('includes an empty-string content (truthiness trap: empty string is kept)', () => {
    const result = filterPage(basePage, '');
    expect(result).toHaveProperty('content');
    expect(result.content).toBe('');
  });

  it('includes a non-empty content string', () => {
    const result = filterPage(basePage, '# Markdown');
    expect(result.content).toBe('# Markdown');
  });

  it('omits content when it is not a string', () => {
    // A non-string (e.g. an object passed by mistake) must be dropped.
    const result = filterPage(basePage, { junk: true } as unknown as string);
    expect(result).not.toHaveProperty('content');
  });

  it('omits subpages when undefined', () => {
    const result = filterPage(basePage);
    expect(result).not.toHaveProperty('subpages');
  });

  it('omits subpages when empty array', () => {
    const result = filterPage(basePage, undefined, []);
    expect(result).not.toHaveProperty('subpages');
  });

  it('maps non-empty subpages to { id, title } only', () => {
    const result = filterPage(basePage, undefined, [
      { id: 's1', title: 'Sub 1', extra: 'drop-me' },
      { id: 's2', title: 'Sub 2' },
    ]);
    expect(result.subpages).toEqual([
      { id: 's1', title: 'Sub 1' },
      { id: 's2', title: 'Sub 2' },
    ]);
  });
});

describe('filterComment', () => {
  const baseComment = {
    id: 'c1',
    pageId: 'pg1',
    content: 'original content',
    creatorId: 'u1',
    createdAt: '2024-01-01',
  };

  it('overrides comment.content with markdownContent when provided', () => {
    const result = filterComment(baseComment, 'markdown version');
    expect(result.content).toBe('markdown version');
  });

  it('falls back to comment.content when markdownContent is undefined', () => {
    const result = filterComment(baseComment, undefined);
    expect(result.content).toBe('original content');
  });

  it('keeps an empty-string markdownContent (uses ?? not ||)', () => {
    // `??` only falls back on null/undefined, so "" must be preserved.
    const result = filterComment(baseComment, '');
    expect(result.content).toBe('');
  });

  it('applies defaults for selection/type/parentCommentId/editedAt/resolvedAt/resolvedById', () => {
    const result = filterComment(baseComment);
    expect(result.selection).toBeNull();
    expect(result.type).toBe('page');
    expect(result.parentCommentId).toBeNull();
    expect(result.editedAt).toBeNull();
    expect(result.resolvedAt).toBeNull();
    expect(result.resolvedById).toBeNull();
  });

  it('passes through provided optional values', () => {
    const result = filterComment({
      ...baseComment,
      selection: 'some text',
      type: 'inline',
      parentCommentId: 'c0',
      editedAt: '2024-02-01',
      resolvedAt: '2024-03-01',
      resolvedById: 'u9',
    });
    expect(result.selection).toBe('some text');
    expect(result.type).toBe('inline');
    expect(result.parentCommentId).toBe('c0');
    expect(result.editedAt).toBe('2024-02-01');
    expect(result.resolvedAt).toBe('2024-03-01');
    expect(result.resolvedById).toBe('u9');
  });

  it('returns null for creatorName when creator is absent', () => {
    const result = filterComment(baseComment);
    expect(result.creatorName).toBeNull();
  });

  it('reads the nested creator?.name when present', () => {
    const result = filterComment({
      ...baseComment,
      creator: { name: 'Alice' },
    });
    expect(result.creatorName).toBe('Alice');
  });
});

describe('filterSearchResult', () => {
  const baseResult = {
    id: 'r1',
    title: 'Result',
    parentPageId: 'p0',
    createdAt: '2024-01-01',
    updatedAt: '2024-01-02',
    rank: 0.9,
    highlight: '<em>Result</em>',
  };

  it('reads nested space?.id and space?.name when space is present', () => {
    const result = filterSearchResult({
      ...baseResult,
      space: { id: 'sp1', name: 'Space One' },
    });
    expect(result.spaceId).toBe('sp1');
    expect(result.spaceName).toBe('Space One');
  });

  it('returns undefined for space fields when space is absent (no throw)', () => {
    const result = filterSearchResult(baseResult);
    expect(result.spaceId).toBeUndefined();
    expect(result.spaceName).toBeUndefined();
  });
});

describe('flat pluckers (no branching)', () => {
  it('filterWorkspace plucks the expected shape', () => {
    const result = filterWorkspace({
      id: 'w1',
      name: 'WS',
      description: 'desc',
      defaultSpaceId: 'sp1',
      createdAt: '2024-01-01',
      updatedAt: '2024-01-02',
      deletedAt: null,
      extra: 'drop',
    });
    expect(result).toEqual({
      id: 'w1',
      name: 'WS',
      description: 'desc',
      defaultSpaceId: 'sp1',
      createdAt: '2024-01-01',
      updatedAt: '2024-01-02',
      deletedAt: null,
    });
  });

  it('filterSpace plucks the expected shape', () => {
    const result = filterSpace({
      id: 'sp1',
      name: 'Space',
      description: 'desc',
      slug: 'space',
      visibility: 'open',
      createdAt: '2024-01-01',
      updatedAt: '2024-01-02',
      deletedAt: null,
      extra: 'drop',
    });
    expect(result).toEqual({
      id: 'sp1',
      name: 'Space',
      description: 'desc',
      slug: 'space',
      visibility: 'open',
      createdAt: '2024-01-01',
      updatedAt: '2024-01-02',
      deletedAt: null,
    });
  });

  it('filterGroup plucks the expected shape', () => {
    const result = filterGroup({
      id: 'g1',
      name: 'Group',
      description: 'desc',
      workspaceId: 'w1',
      createdAt: '2024-01-01',
      updatedAt: '2024-01-02',
      deletedAt: null,
      extra: 'drop',
    });
    expect(result).toEqual({
      id: 'g1',
      name: 'Group',
      description: 'desc',
      workspaceId: 'w1',
      createdAt: '2024-01-01',
      updatedAt: '2024-01-02',
      deletedAt: null,
    });
  });
});