import { describe, it, expect, vi, beforeEach } from 'vitest';
import { renderHook, waitFor, act } from '@testing-library/react';
import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
import React from 'react';
import {
  staffEmailKeys,
  useStaffEmailFolders,
  useCreateStaffEmailFolder,
  useUpdateStaffEmailFolder,
  useDeleteStaffEmailFolder,
  useStaffEmail,
  useStaffEmailThread,
  useStaffEmailLabels,
  useCreateLabel,
  useUpdateLabel,
  useDeleteLabel,
  useAddLabelToEmail,
  useRemoveLabelFromEmail,
  useCreateDraft,
  useUpdateDraft,
  useDeleteDraft,
  useSendEmail,
  useReplyToEmail,
  useForwardEmail,
  useMarkAsRead,
  useMarkAsUnread,
  useStarEmail,
  useUnstarEmail,
  useArchiveEmail,
  useTrashEmail,
  useRestoreEmail,
  usePermanentlyDeleteEmail,
  useMoveEmails,
  useBulkEmailAction,
  useContactSearch,
  useUploadAttachment,
  useDeleteAttachment,
  useSyncEmails,
  useFullSyncEmails,
  useUserEmailAddresses,
} from '../useStaffEmail';
import * as staffEmailApi from '../../api/staffEmail';

vi.mock('../../api/staffEmail');

const mockFolder = {
  id: 1,
  owner: 1,
  name: 'Inbox',
  folderType: 'inbox',
  emailCount: 10,
  unreadCount: 3,
  createdAt: '2024-01-01T00:00:00Z',
  updatedAt: '2024-01-01T00:00:00Z',
};

const mockEmail = {
  id: 1,
  folder: 1,
  fromAddress: 'sender@example.com',
  fromName: 'Sender Name',
  toAddresses: [{ email: 'recipient@example.com', name: 'Recipient' }],
  subject: 'Test Email',
  snippet: 'This is a test...',
  status: 'received',
  isRead: false,
  isStarred: false,
  isImportant: false,
  hasAttachments: false,
  attachmentCount: 0,
  threadId: 'thread-1',
  emailDate: '2024-01-01T12:00:00Z',
  createdAt: '2024-01-01T12:00:00Z',
  labels: [],
  owner: 1,
  emailAddress: 1,
  messageId: 'msg-1',
  inReplyTo: null,
  references: '',
  ccAddresses: [],
  bccAddresses: [],
  bodyText: 'This is a test email body.',
  bodyHtml: '<p>This is a test email body.</p>',
  isAnswered: false,
  isPermanentlyDeleted: false,
  deletedAt: null,
  attachments: [],
  updatedAt: '2024-01-01T12:00:00Z',
};

const mockLabel = {
  id: 1,
  owner: 1,
  name: 'Important',
  color: '#ef4444',
  createdAt: '2024-01-01T00:00:00Z',
};

const mockContact = {
  id: 1,
  owner: 1,
  email: 'contact@example.com',
  name: 'Contact Name',
  useCount: 5,
  lastUsedAt: '2024-01-01T00:00:00Z',
};

const mockAttachment = {
  id: 1,
  filename: 'document.pdf',
  contentType: 'application/pdf',
  size: 1024,
  url: 'https://example.com/document.pdf',
  createdAt: '2024-01-01T00:00:00Z',
};

const mockUserEmailAddress = {
  id: 1,
  email_address: 'user@example.com',
  display_name: 'User',
  color: '#3b82f6',
  is_default: true,
  last_check_at: '2024-01-01T00:00:00Z',
  emails_processed_count: 100,
};

const createWrapper = () => {
  const queryClient = new QueryClient({
    defaultOptions: {
      queries: { retry: false },
      mutations: { retry: false },
    },
  });
  return function Wrapper({ children }: { children: React.ReactNode }) {
    return React.createElement(QueryClientProvider, { client: queryClient }, children);
  };
};

describe('useStaffEmail hooks', () => {
  beforeEach(() => {
    vi.clearAllMocks();
  });

  describe('staffEmailKeys', () => {
    it('generates correct query keys', () => {
      expect(staffEmailKeys.all).toEqual(['staffEmail']);
      expect(staffEmailKeys.folders()).toEqual(['staffEmail', 'folders']);
      expect(staffEmailKeys.emails()).toEqual(['staffEmail', 'emails']);
      expect(staffEmailKeys.emailDetail(1)).toEqual(['staffEmail', 'emails', 'detail', 1]);
      expect(staffEmailKeys.emailThread('thread-1')).toEqual(['staffEmail', 'emails', 'thread', 'thread-1']);
      expect(staffEmailKeys.labels()).toEqual(['staffEmail', 'labels']);
      expect(staffEmailKeys.contacts('test')).toEqual(['staffEmail', 'contacts', 'test']);
      expect(staffEmailKeys.userEmailAddresses()).toEqual(['staffEmail', 'userEmailAddresses']);
    });

    it('generates email list key with filters', () => {
      const filters = { folderId: 1, emailAddressId: 2, search: 'test' };
      const key = staffEmailKeys.emailList(filters);
      expect(key).toContain('staffEmail');
      expect(key).toContain('emails');
      expect(key).toContain('list');
    });
  });

  describe('useStaffEmailFolders', () => {
    it('fetches email folders', async () => {
      vi.mocked(staffEmailApi.getFolders).mockResolvedValueOnce([mockFolder]);

      const { result } = renderHook(() => useStaffEmailFolders(), { wrapper: createWrapper() });

      await waitFor(() => expect(result.current.isSuccess).toBe(true));

      expect(staffEmailApi.getFolders).toHaveBeenCalled();
      expect(result.current.data).toEqual([mockFolder]);
    });

    it('handles error when fetching folders', async () => {
      vi.mocked(staffEmailApi.getFolders).mockRejectedValueOnce(new Error('Failed to fetch folders'));

      const { result } = renderHook(() => useStaffEmailFolders(), { wrapper: createWrapper() });

      await waitFor(() => expect(result.current.isError).toBe(true));
    });
  });

  describe('useCreateStaffEmailFolder', () => {
    it('creates a new folder', async () => {
      const newFolder = { ...mockFolder, id: 2, name: 'Custom Folder' };
      vi.mocked(staffEmailApi.createFolder).mockResolvedValueOnce(newFolder);

      const { result } = renderHook(() => useCreateStaffEmailFolder(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync('Custom Folder');
      });

      expect(staffEmailApi.createFolder).toHaveBeenCalledWith('Custom Folder');
    });
  });

  describe('useUpdateStaffEmailFolder', () => {
    it('updates a folder name', async () => {
      const updatedFolder = { ...mockFolder, name: 'Updated Name' };
      vi.mocked(staffEmailApi.updateFolder).mockResolvedValueOnce(updatedFolder);

      const { result } = renderHook(() => useUpdateStaffEmailFolder(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync({ id: 1, name: 'Updated Name' });
      });

      expect(staffEmailApi.updateFolder).toHaveBeenCalledWith(1, 'Updated Name');
    });
  });

  describe('useDeleteStaffEmailFolder', () => {
    it('deletes a folder', async () => {
      vi.mocked(staffEmailApi.deleteFolder).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useDeleteStaffEmailFolder(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.deleteFolder).toHaveBeenCalledWith(1);
    });
  });

  describe('useStaffEmail', () => {
    it('fetches a single email by id', async () => {
      vi.mocked(staffEmailApi.getEmail).mockResolvedValueOnce(mockEmail);

      const { result } = renderHook(() => useStaffEmail(1), { wrapper: createWrapper() });

      await waitFor(() => expect(result.current.isSuccess).toBe(true));

      expect(staffEmailApi.getEmail).toHaveBeenCalledWith(1);
      expect(result.current.data).toEqual(mockEmail);
    });

    it('does not fetch when id is undefined', () => {
      const { result } = renderHook(() => useStaffEmail(undefined), { wrapper: createWrapper() });

      expect(result.current.fetchStatus).toBe('idle');
      expect(staffEmailApi.getEmail).not.toHaveBeenCalled();
    });
  });

  describe('useStaffEmailThread', () => {
    it('fetches email thread', async () => {
      vi.mocked(staffEmailApi.getEmailThread).mockResolvedValueOnce([mockEmail]);

      const { result } = renderHook(() => useStaffEmailThread('thread-1'), { wrapper: createWrapper() });

      await waitFor(() => expect(result.current.isSuccess).toBe(true));

      expect(staffEmailApi.getEmailThread).toHaveBeenCalledWith('thread-1');
      expect(result.current.data).toEqual([mockEmail]);
    });

    it('does not fetch when threadId is undefined', () => {
      const { result } = renderHook(() => useStaffEmailThread(undefined), { wrapper: createWrapper() });

      expect(result.current.fetchStatus).toBe('idle');
      expect(staffEmailApi.getEmailThread).not.toHaveBeenCalled();
    });
  });

  describe('useStaffEmailLabels', () => {
    it('fetches email labels', async () => {
      vi.mocked(staffEmailApi.getLabels).mockResolvedValueOnce([mockLabel]);

      const { result } = renderHook(() => useStaffEmailLabels(), { wrapper: createWrapper() });

      await waitFor(() => expect(result.current.isSuccess).toBe(true));

      expect(staffEmailApi.getLabels).toHaveBeenCalled();
      expect(result.current.data).toEqual([mockLabel]);
    });
  });

  describe('useCreateLabel', () => {
    it('creates a new label', async () => {
      const newLabel = { ...mockLabel, id: 2, name: 'Work', color: '#10b981' };
      vi.mocked(staffEmailApi.createLabel).mockResolvedValueOnce(newLabel);

      const { result } = renderHook(() => useCreateLabel(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync({ name: 'Work', color: '#10b981' });
      });

      expect(staffEmailApi.createLabel).toHaveBeenCalledWith('Work', '#10b981');
    });
  });

  describe('useUpdateLabel', () => {
    it('updates a label', async () => {
      const updatedLabel = { ...mockLabel, name: 'Updated Label' };
      vi.mocked(staffEmailApi.updateLabel).mockResolvedValueOnce(updatedLabel);

      const { result } = renderHook(() => useUpdateLabel(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync({ id: 1, data: { name: 'Updated Label' } });
      });

      expect(staffEmailApi.updateLabel).toHaveBeenCalledWith(1, { name: 'Updated Label' });
    });
  });

  describe('useDeleteLabel', () => {
    it('deletes a label', async () => {
      vi.mocked(staffEmailApi.deleteLabel).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useDeleteLabel(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.deleteLabel).toHaveBeenCalledWith(1);
    });
  });

  describe('useAddLabelToEmail', () => {
    it('adds label to email', async () => {
      vi.mocked(staffEmailApi.addLabelToEmail).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useAddLabelToEmail(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync({ emailId: 1, labelId: 2 });
      });

      expect(staffEmailApi.addLabelToEmail).toHaveBeenCalledWith(1, 2);
    });
  });

  describe('useRemoveLabelFromEmail', () => {
    it('removes label from email', async () => {
      vi.mocked(staffEmailApi.removeLabelFromEmail).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useRemoveLabelFromEmail(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync({ emailId: 1, labelId: 2 });
      });

      expect(staffEmailApi.removeLabelFromEmail).toHaveBeenCalledWith(1, 2);
    });
  });

  describe('useCreateDraft', () => {
    it('creates a draft email', async () => {
      vi.mocked(staffEmailApi.createDraft).mockResolvedValueOnce(mockEmail);

      const draftData = {
        emailAddressId: 1,
        toAddresses: ['recipient@example.com'],
        subject: 'Test Draft',
        bodyText: 'Draft body',
      };

      const { result } = renderHook(() => useCreateDraft(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(draftData);
      });

      expect(staffEmailApi.createDraft).toHaveBeenCalledWith(draftData);
    });
  });

  describe('useUpdateDraft', () => {
    it('updates a draft email', async () => {
      vi.mocked(staffEmailApi.updateDraft).mockResolvedValueOnce(mockEmail);

      const { result } = renderHook(() => useUpdateDraft(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync({ id: 1, data: { subject: 'Updated Subject' } });
      });

      expect(staffEmailApi.updateDraft).toHaveBeenCalledWith(1, { subject: 'Updated Subject' });
    });
  });

  describe('useDeleteDraft', () => {
    it('deletes a draft', async () => {
      vi.mocked(staffEmailApi.deleteDraft).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useDeleteDraft(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.deleteDraft).toHaveBeenCalledWith(1);
    });
  });

  describe('useSendEmail', () => {
    it('sends an email', async () => {
      vi.mocked(staffEmailApi.sendEmail).mockResolvedValueOnce(mockEmail);

      const { result } = renderHook(() => useSendEmail(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.sendEmail).toHaveBeenCalledWith(1);
    });
  });

  describe('useReplyToEmail', () => {
    it('replies to an email', async () => {
      vi.mocked(staffEmailApi.replyToEmail).mockResolvedValueOnce(mockEmail);

      const replyData = {
        bodyText: 'Reply body',
        bodyHtml: '<p>Reply body</p>',
        replyAll: false,
      };

      const { result } = renderHook(() => useReplyToEmail(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync({ id: 1, data: replyData });
      });

      expect(staffEmailApi.replyToEmail).toHaveBeenCalledWith(1, replyData);
    });
  });

  describe('useForwardEmail', () => {
    it('forwards an email', async () => {
      vi.mocked(staffEmailApi.forwardEmail).mockResolvedValueOnce(mockEmail);

      const forwardData = {
        toAddresses: ['forward@example.com'],
        bodyText: 'Forwarding this email',
      };

      const { result } = renderHook(() => useForwardEmail(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync({ id: 1, data: forwardData });
      });

      expect(staffEmailApi.forwardEmail).toHaveBeenCalledWith(1, forwardData);
    });
  });

  describe('useMarkAsRead', () => {
    it('marks email as read', async () => {
      vi.mocked(staffEmailApi.markAsRead).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useMarkAsRead(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.markAsRead).toHaveBeenCalledWith(1);
    });
  });

  describe('useMarkAsUnread', () => {
    it('marks email as unread', async () => {
      vi.mocked(staffEmailApi.markAsUnread).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useMarkAsUnread(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.markAsUnread).toHaveBeenCalledWith(1);
    });
  });

  describe('useStarEmail', () => {
    it('stars an email', async () => {
      vi.mocked(staffEmailApi.starEmail).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useStarEmail(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.starEmail).toHaveBeenCalledWith(1);
    });
  });

  describe('useUnstarEmail', () => {
    it('unstars an email', async () => {
      vi.mocked(staffEmailApi.unstarEmail).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useUnstarEmail(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.unstarEmail).toHaveBeenCalledWith(1);
    });
  });

  describe('useArchiveEmail', () => {
    it('archives an email', async () => {
      vi.mocked(staffEmailApi.archiveEmail).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useArchiveEmail(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.archiveEmail).toHaveBeenCalledWith(1);
    });
  });

  describe('useTrashEmail', () => {
    it('moves email to trash', async () => {
      vi.mocked(staffEmailApi.trashEmail).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useTrashEmail(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.trashEmail).toHaveBeenCalledWith(1);
    });
  });

  describe('useRestoreEmail', () => {
    it('restores an email from trash', async () => {
      vi.mocked(staffEmailApi.restoreEmail).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useRestoreEmail(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.restoreEmail).toHaveBeenCalledWith(1);
    });
  });

  describe('usePermanentlyDeleteEmail', () => {
    it('permanently deletes an email', async () => {
      vi.mocked(staffEmailApi.permanentlyDeleteEmail).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => usePermanentlyDeleteEmail(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.permanentlyDeleteEmail).toHaveBeenCalledWith(1);
    });
  });

  describe('useMoveEmails', () => {
    it('moves emails to a folder', async () => {
      vi.mocked(staffEmailApi.moveEmails).mockResolvedValueOnce(undefined);

      const moveData = { emailIds: [1, 2, 3], folderId: 2 };

      const { result } = renderHook(() => useMoveEmails(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(moveData);
      });

      expect(staffEmailApi.moveEmails).toHaveBeenCalledWith(moveData);
    });
  });

  describe('useBulkEmailAction', () => {
    it('performs bulk action on emails', async () => {
      vi.mocked(staffEmailApi.bulkAction).mockResolvedValueOnce(undefined);

      const bulkData = { emailIds: [1, 2, 3], action: 'mark_read' as const };

      const { result } = renderHook(() => useBulkEmailAction(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(bulkData);
      });

      expect(staffEmailApi.bulkAction).toHaveBeenCalledWith(bulkData);
    });
  });

  describe('useContactSearch', () => {
    it('searches contacts with query', async () => {
      vi.mocked(staffEmailApi.searchContacts).mockResolvedValueOnce([mockContact]);

      const { result } = renderHook(() => useContactSearch('test'), { wrapper: createWrapper() });

      await waitFor(() => expect(result.current.isSuccess).toBe(true));

      expect(staffEmailApi.searchContacts).toHaveBeenCalledWith('test');
      expect(result.current.data).toEqual([mockContact]);
    });

    it('does not search with query less than 2 characters', () => {
      const { result } = renderHook(() => useContactSearch('t'), { wrapper: createWrapper() });

      expect(result.current.fetchStatus).toBe('idle');
      expect(staffEmailApi.searchContacts).not.toHaveBeenCalled();
    });
  });

  describe('useUploadAttachment', () => {
    it('uploads an attachment', async () => {
      vi.mocked(staffEmailApi.uploadAttachment).mockResolvedValueOnce(mockAttachment);

      const file = new File(['test content'], 'test.pdf', { type: 'application/pdf' });

      const { result } = renderHook(() => useUploadAttachment(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync({ file, emailId: 1 });
      });

      expect(staffEmailApi.uploadAttachment).toHaveBeenCalledWith(file, 1);
    });

    it('uploads attachment without email id', async () => {
      vi.mocked(staffEmailApi.uploadAttachment).mockResolvedValueOnce(mockAttachment);

      const file = new File(['test content'], 'test.pdf', { type: 'application/pdf' });

      const { result } = renderHook(() => useUploadAttachment(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync({ file });
      });

      expect(staffEmailApi.uploadAttachment).toHaveBeenCalledWith(file, undefined);
    });
  });

  describe('useDeleteAttachment', () => {
    it('deletes an attachment', async () => {
      vi.mocked(staffEmailApi.deleteAttachment).mockResolvedValueOnce(undefined);

      const { result } = renderHook(() => useDeleteAttachment(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync(1);
      });

      expect(staffEmailApi.deleteAttachment).toHaveBeenCalledWith(1);
    });
  });

  describe('useSyncEmails', () => {
    it('syncs emails', async () => {
      vi.mocked(staffEmailApi.syncEmails).mockResolvedValueOnce({ success: true, message: 'Synced' });

      const { result } = renderHook(() => useSyncEmails(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync();
      });

      expect(staffEmailApi.syncEmails).toHaveBeenCalled();
    });
  });

  describe('useFullSyncEmails', () => {
    it('performs full email sync', async () => {
      vi.mocked(staffEmailApi.fullSyncEmails).mockResolvedValueOnce({
        status: 'started',
        tasks: [{ email_address: 'user@example.com', task_id: 'task-1' }],
      });

      const { result } = renderHook(() => useFullSyncEmails(), { wrapper: createWrapper() });

      await act(async () => {
        await result.current.mutateAsync();
      });

      expect(staffEmailApi.fullSyncEmails).toHaveBeenCalled();
    });
  });

  describe('useUserEmailAddresses', () => {
    it('fetches user email addresses', async () => {
      vi.mocked(staffEmailApi.getUserEmailAddresses).mockResolvedValueOnce([mockUserEmailAddress]);

      const { result } = renderHook(() => useUserEmailAddresses(), { wrapper: createWrapper() });

      await waitFor(() => expect(result.current.isSuccess).toBe(true));

      expect(staffEmailApi.getUserEmailAddresses).toHaveBeenCalled();
      expect(result.current.data).toEqual([mockUserEmailAddress]);
    });
  });
});