import { describe, it, expect } from 'vitest';
import { canEdit, isAuthorized, selectCanonical, BlogSettings, RevisionMeta } from '@/utils/wiki';

describe('wiki auth', () => {
  const owner = 'alice';

  it('owner always allowed (auth + edit)', () => {
    const s: BlogSettings = { wikiEnabled: false };
    expect(isAuthorized(owner, s, owner)).toBe(true);
    expect(canEdit(owner, s, owner)).toBe(true);
  });

  it('wiki disabled: only owner allowed', () => {
    const s: BlogSettings = { wikiEnabled: false };
    expect(isAuthorized('bob', s, owner)).toBe(false);
    expect(canEdit('bob', s, owner)).toBe(false);
  });

  it('blacklist blocks even with whitelist', () => {
    const s: BlogSettings = {
      wikiEnabled: true,
      editorWhitelist: ['bob'],
      editorBlacklist: ['bob'],
    };
    expect(isAuthorized('bob', s, owner)).toBe(false);
    expect(canEdit('bob', s, owner)).toBe(false);
  });

  it('whitelist gates when non-empty', () => {
    const s: BlogSettings = { wikiEnabled: true, editorWhitelist: ['bob'] };
    expect(isAuthorized('bob', s, owner)).toBe(true);
    expect(isAuthorized('carol', s, owner)).toBe(false);
  });

  it('global allow when whitelist empty', () => {
    const s: BlogSettings = { wikiEnabled: true };
    expect(isAuthorized('bob', s, owner)).toBe(true);
    expect(canEdit('carol', s, owner)).toBe(true);
  });
});

describe('wiki canonical selection', () => {
  const owner = 'alice';
  const settings: BlogSettings = { wikiEnabled: true };

  const revs: RevisionMeta[] = [
    {
      id: 'q-blog-a-post-1-1',
      originPostId: 'q-blog-a-post-1-0',
      lineageBlogId: 'q-blog-a',
      authorName: 'bob',
      updatedAt: '2025-08-20T10:00:00Z',
      published: true,
    },
    {
      id: 'q-blog-a-post-1-2',
      originPostId: 'q-blog-a-post-1-0',
      lineageBlogId: 'q-blog-a',
      authorName: 'carol',
      updatedAt: '2025-08-21T09:00:00Z',
      published: true,
    },
    {
      id: 'q-blog-a-post-1-3',
      originPostId: 'q-blog-a-post-1-0',
      lineageBlogId: 'q-blog-a',
      authorName: owner,
      updatedAt: '2025-08-21T09:00:00Z', // tie with carol; owner should win
      published: true,
    },
    {
      id: 'q-blog-a-post-1-4',
      originPostId: 'q-blog-a-post-1-0',
      lineageBlogId: 'q-blog-a',
      authorName: 'dave',
      updatedAt: '2025-08-19T00:00:00Z',
      published: false, // hidden
    },
  ];

  it('picks newest; owner wins tie; filters unpublished', () => {
    const sel = selectCanonical(revs, settings, owner, { expectedLineageBlogId: 'q-blog-a' });
    expect(sel?.id).toBe('q-blog-a-post-1-3');
  });

  it('blacklist does not override owner precedence', () => {
    const sel = selectCanonical(revs, { wikiEnabled: true, editorBlacklist: [owner] }, owner, {
      expectedLineageBlogId: 'q-blog-a',
    });
    // Owner always allowed even if listed
    expect(sel?.id).toBe('q-blog-a-post-1-3');
  });

  it('respects whitelist', () => {
    const sel = selectCanonical(revs, { wikiEnabled: true, editorWhitelist: ['bob'] }, owner, {
      expectedLineageBlogId: 'q-blog-a',
    });
    // only bob + owner allowed; bob newer than bob? owner at same time but owner wins tie → owner
    expect(sel?.id).toBe('q-blog-a-post-1-3');
  });
});