/**
 * Global Blocks API Service Tests
 */
import { describe, it, expect, vi, beforeEach } from 'vitest';

// Mock fetch globally
const mockFetch = vi.fn();
vi.stubGlobal('fetch', mockFetch);

// Import after mock is set up
import {
  getGlobalFolders,
  createGlobalFolder,
  renameGlobalFolder,
  deleteGlobalFolder,
  getGlobalBlocks,
  createGlobalBlock,
  renameGlobalBlock,
  deleteGlobalBlock,
} from '../src/services/api';

const TOKEN = 'test-token-123';

function mockResponse(data: unknown, ok = true, status = 200): Response {
  return {
    ok,
    status,
    json: () => Promise.resolve(data),
  } as Response;
}

beforeEach(() => {
  mockFetch.mockReset();
});

describe('Global Blocks API Service', () => {
  describe('getGlobalFolders', () => {
    it('should fetch all folders', async () => {
      const folders = [{ id: 'f1', name: 'Folder 1', parent_id: null, created_at: '2026-01-01' }];
      mockFetch.mockResolvedValue(mockResponse(folders));
      const result = await getGlobalFolders(TOKEN);
      expect(result).toEqual(folders);
      expect(mockFetch).toHaveBeenCalledWith(
        expect.stringContaining('/api/global-folders'),
        expect.objectContaining({ headers: expect.objectContaining({ Authorization: `Bearer ${TOKEN}` }) }),
      );
    });

    it('should fetch root folders when parentId=null', async () => {
      const folders = [{ id: 'f1', name: 'Root', parent_id: null, created_at: '2026-01-01' }];
      mockFetch.mockResolvedValue(mockResponse(folders));
      const result = await getGlobalFolders(TOKEN, null);
      expect(result).toEqual(folders);
      expect(mockFetch).toHaveBeenCalledWith(
        expect.stringContaining('parentId=null'),
        expect.anything(),
      );
    });

    it('should fetch sub-folders for a parent', async () => {
      const folders = [{ id: 'f2', name: 'Sub', parent_id: 'f1', created_at: '2026-01-01' }];
      mockFetch.mockResolvedValue(mockResponse(folders));
      const result = await getGlobalFolders(TOKEN, 'f1');
      expect(result).toEqual(folders);
      expect(mockFetch).toHaveBeenCalledWith(
        expect.stringContaining('parentId=f1'),
        expect.anything(),
      );
    });

    it('should throw on fetch failure', async () => {
      mockFetch.mockResolvedValue(mockResponse({ error: 'fail' }, false, 500));
      await expect(getGlobalFolders(TOKEN)).rejects.toThrow('Failed to load global folders');
    });
  });

  describe('createGlobalFolder', () => {
    it('should create a folder', async () => {
      const folder = { id: 'f1', name: 'New Folder', parent_id: null, created_at: '2026-01-01' };
      mockFetch.mockResolvedValue(mockResponse(folder, true, 201));
      const result = await createGlobalFolder(TOKEN, 'New Folder');
      expect(result).toEqual(folder);
      expect(mockFetch).toHaveBeenCalledWith(
        expect.stringContaining('/api/global-folders'),
        expect.objectContaining({
          method: 'POST',
          body: JSON.stringify({ name: 'New Folder', parent_id: null }),
        }),
      );
    });

    it('should create a sub-folder with parentId', async () => {
      const folder = { id: 'f2', name: 'Sub', parent_id: 'f1', created_at: '2026-01-01' };
      mockFetch.mockResolvedValue(mockResponse(folder, true, 201));
      const result = await createGlobalFolder(TOKEN, 'Sub', 'f1');
      expect(result).toEqual(folder);
      expect(mockFetch).toHaveBeenCalledWith(
        expect.anything(),
        expect.objectContaining({
          body: JSON.stringify({ name: 'Sub', parent_id: 'f1' }),
        }),
      );
    });
  });

  describe('renameGlobalFolder', () => {
    it('should rename a folder', async () => {
      const folder = { id: 'f1', name: 'Renamed', parent_id: null, created_at: '2026-01-01' };
      mockFetch.mockResolvedValue(mockResponse(folder));
      const result = await renameGlobalFolder(TOKEN, 'f1', 'Renamed');
      expect(result).toEqual(folder);
      expect(mockFetch).toHaveBeenCalledWith(
        expect.stringContaining('/api/global-folders/f1'),
        expect.objectContaining({ method: 'PATCH', body: JSON.stringify({ name: 'Renamed' }) }),
      );
    });
  });

  describe('deleteGlobalFolder', () => {
    it('should delete a folder', async () => {
      mockFetch.mockResolvedValue(mockResponse(null, true, 204));
      await deleteGlobalFolder(TOKEN, 'f1');
      expect(mockFetch).toHaveBeenCalledWith(
        expect.stringContaining('/api/global-folders/f1'),
        expect.objectContaining({ method: 'DELETE' }),
      );
    });
  });

  describe('getGlobalBlocks', () => {
    it('should fetch all blocks', async () => {
      const blocks = [{ id: 'b1', folder_id: null, name: 'Block 1', block_data: '{}', svg_data: null, created_at: '2026-01-01', updated_at: '2026-01-01' }];
      mockFetch.mockResolvedValue(mockResponse(blocks));
      const result = await getGlobalBlocks(TOKEN);
      expect(result).toEqual(blocks);
    });

    it('should fetch blocks for a folder', async () => {
      const blocks = [{ id: 'b1', folder_id: 'f1', name: 'Block 1', block_data: '{}', svg_data: null, created_at: '2026-01-01', updated_at: '2026-01-01' }];
      mockFetch.mockResolvedValue(mockResponse(blocks));
      const result = await getGlobalBlocks(TOKEN, 'f1');
      expect(result).toEqual(blocks);
      expect(mockFetch).toHaveBeenCalledWith(
        expect.stringContaining('folderId=f1'),
        expect.anything(),
      );
    });

    it('should fetch root-level blocks with folderId=null', async () => {
      const blocks = [{ id: 'b1', folder_id: null, name: 'Root Block', block_data: '{}', svg_data: null, created_at: '2026-01-01', updated_at: '2026-01-01' }];
      mockFetch.mockResolvedValue(mockResponse(blocks));
      const result = await getGlobalBlocks(TOKEN, null);
      expect(result).toEqual(blocks);
      expect(mockFetch).toHaveBeenCalledWith(
        expect.stringContaining('folderId=null'),
        expect.anything(),
      );
    });
  });

  describe('createGlobalBlock', () => {
    it('should create a block with full data', async () => {
      const block = { id: 'b1', folder_id: 'f1', name: 'Chair', block_data: '{"type":"chair"}', svg_data: '<svg/>', created_at: '2026-01-01', updated_at: '2026-01-01' };
      mockFetch.mockResolvedValue(mockResponse(block, true, 201));
      const result = await createGlobalBlock(TOKEN, {
        name: 'Chair',
        folder_id: 'f1',
        block_data: '{"type":"chair"}',
        svg_data: '<svg/>',
      });
      expect(result).toEqual(block);
      expect(mockFetch).toHaveBeenCalledWith(
        expect.anything(),
        expect.objectContaining({
          method: 'POST',
          body: JSON.stringify({
            name: 'Chair',
            folder_id: 'f1',
            block_data: '{"type":"chair"}',
            svg_data: '<svg/>',
          }),
        }),
      );
    });
  });

  describe('renameGlobalBlock', () => {
    it('should rename a block', async () => {
      const block = { id: 'b1', folder_id: null, name: 'Renamed', block_data: '{}', svg_data: null, created_at: '2026-01-01', updated_at: '2026-01-01' };
      mockFetch.mockResolvedValue(mockResponse(block));
      const result = await renameGlobalBlock(TOKEN, 'b1', 'Renamed');
      expect(result).toEqual(block);
      expect(mockFetch).toHaveBeenCalledWith(
        expect.stringContaining('/api/global-blocks/b1'),
        expect.objectContaining({ method: 'PATCH', body: JSON.stringify({ name: 'Renamed' }) }),
      );
    });
  });

  describe('deleteGlobalBlock', () => {
    it('should delete a block', async () => {
      mockFetch.mockResolvedValue(mockResponse(null, true, 204));
      await deleteGlobalBlock(TOKEN, 'b1');
      expect(mockFetch).toHaveBeenCalledWith(
        expect.stringContaining('/api/global-blocks/b1'),
        expect.objectContaining({ method: 'DELETE' }),
      );
    });
  });
});

/**
 * GroupTool Extended Tests — getGroupElements method
 */
import { GroupManager } from '../src/tools/modification/GroupTool';

describe('GroupManager getGroupElements', () => {
  it('should return only the element itself when not in a group', () => {
    const gm = new GroupManager();
    const result = gm.getGroupElements('el1');
    expect(result).toEqual(['el1']);
  });

  it('should return all group members when element is in a group', () => {
    const gm = new GroupManager();
    gm.createGroup(['el1', 'el2', 'el3']);
    const result = gm.getGroupElements('el1');
    expect(result).toHaveLength(3);
    expect(result).toContain('el1');
    expect(result).toContain('el2');
    expect(result).toContain('el3');
  });

  it('should return all group members for any member element', () => {
    const gm = new GroupManager();
    gm.createGroup(['a', 'b', 'c']);
    expect(gm.getGroupElements('b')).toContain('a');
    expect(gm.getGroupElements('b')).toContain('b');
    expect(gm.getGroupElements('b')).toContain('c');
    expect(gm.getGroupElements('c')).toHaveLength(3);
  });

  it('should return only the element when group was dissolved', () => {
    const gm = new GroupManager();
    const group = gm.createGroup(['x', 'y']);
    gm.ungroup(group.id);
    expect(gm.getGroupElements('x')).toEqual(['x']);
    expect(gm.getGroupElements('y')).toEqual(['y']);
  });
});