import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
import { render, screen, waitFor, fireEvent } from '@testing-library/react';
import userEvent from '@testing-library/user-event';
import { TrackDelete } from './TrackDelete';
import { deleteTrack } from '../services/trackService';
import { TrackServiceError as TrackUploadError } from '../errors/trackErrors';
import { useToast } from '@/hooks/useToast';

// Mock dependencies
vi.mock('../services/trackService');
vi.mock('@/hooks/useToast');

describe('TrackDelete', () => {
  const mockToast = {
    success: vi.fn(),
    error: vi.fn(),
    warning: vi.fn(),
    info: vi.fn(),
    toast: vi.fn(),
  };

  const mockOnDelete = vi.fn();

  beforeEach(() => {
    vi.clearAllMocks();
    vi.mocked(useToast).mockReturnValue(mockToast);
  });

  afterEach(() => {
    vi.restoreAllMocks();
  });

  it('should render delete button', () => {
    render(<TrackDelete trackId={1} />);

    expect(screen.getByText('Supprimer')).toBeInTheDocument();
  });

  it('should open dialog when button is clicked', async () => {
    render(<TrackDelete trackId={1} />);

    const deleteButton = screen.getByText('Supprimer');
    await userEvent.click(deleteButton);

    await waitFor(() => {
      expect(screen.getByText('Supprimer le track ?')).toBeInTheDocument();
    });
  });

  it('should display confirmation message in dialog', async () => {
    render(<TrackDelete trackId={1} />);

    const deleteButton = screen.getByText('Supprimer');
    await userEvent.click(deleteButton);

    await waitFor(() => {
      expect(
        screen.getByText(/cette action est irréversible/i),
      ).toBeInTheDocument();
    });
  });

  it('should display track title if provided', async () => {
    render(<TrackDelete trackId={1} trackTitle="Test Track" />);

    const deleteButton = screen.getByText('Supprimer');
    await userEvent.click(deleteButton);

    await waitFor(() => {
      expect(screen.getByText('Test Track')).toBeInTheDocument();
    });
  });

  it('should call deleteTrack and onDelete on confirm', async () => {
    vi.mocked(deleteTrack).mockResolvedValue(undefined);

    render(<TrackDelete trackId={1} onDelete={mockOnDelete} />);

    const deleteButton = screen.getByText('Supprimer');
    await userEvent.click(deleteButton);

    await waitFor(() => {
      expect(screen.getByText('Supprimer le track ?')).toBeInTheDocument();
    });

    const confirmButton = screen.getByText('Supprimer');
    await userEvent.click(confirmButton);

    await waitFor(() => {
      expect(deleteTrack).toHaveBeenCalledWith(1);
      expect(mockToast.success).toHaveBeenCalledWith(
        'Track supprimé avec succès',
      );
      expect(mockOnDelete).toHaveBeenCalled();
    });
  });

  it('should close dialog after successful deletion', async () => {
    vi.mocked(deleteTrack).mockResolvedValue(undefined);

    render(<TrackDelete trackId={1} />);

    const deleteButton = screen.getByText('Supprimer');
    await userEvent.click(deleteButton);

    await waitFor(() => {
      expect(screen.getByText('Supprimer le track ?')).toBeInTheDocument();
    });

    const confirmButton = screen.getByText('Supprimer');
    await userEvent.click(confirmButton);

    await waitFor(() => {
      expect(
        screen.queryByText('Supprimer le track ?'),
      ).not.toBeInTheDocument();
    });
  });

  it('should handle delete error', async () => {
    const error = new TrackUploadError('Delete failed', 'SERVER', true);
    vi.mocked(deleteTrack).mockRejectedValue(error);

    render(<TrackDelete trackId={1} />);

    const deleteButton = screen.getByText('Supprimer');
    await userEvent.click(deleteButton);

    await waitFor(() => {
      expect(screen.getByText('Supprimer le track ?')).toBeInTheDocument();
    });

    const confirmButton = screen.getByText('Supprimer');
    await userEvent.click(confirmButton);

    await waitFor(() => {
      expect(mockToast.error).toHaveBeenCalledWith('Delete failed');
    });

    // Dialog should remain open on error
    expect(screen.getByText('Supprimer le track ?')).toBeInTheDocument();
  });

  it('should close dialog when cancel is clicked', async () => {
    render(<TrackDelete trackId={1} />);

    const deleteButton = screen.getByText('Supprimer');
    await userEvent.click(deleteButton);

    await waitFor(() => {
      expect(screen.getByText('Supprimer le track ?')).toBeInTheDocument();
    });

    const cancelButton = screen.getByText('Annuler');
    await userEvent.click(cancelButton);

    await waitFor(() => {
      expect(
        screen.queryByText('Supprimer le track ?'),
      ).not.toBeInTheDocument();
    });

    expect(deleteTrack).not.toHaveBeenCalled();
  });

  it('should disable confirm button while deleting', async () => {
    vi.mocked(deleteTrack).mockImplementation(
      () =>
        new Promise((resolve) => {
          setTimeout(() => resolve(undefined), 100);
        }),
    );

    render(<TrackDelete trackId={1} />);

    const deleteButton = screen.getByText('Supprimer');
    await userEvent.click(deleteButton);

    await waitFor(() => {
      expect(screen.getByText('Supprimer le track ?')).toBeInTheDocument();
    });

    const confirmButton = screen.getByText('Supprimer');
    await userEvent.click(confirmButton);

    // Check for loading state
    await waitFor(() => {
      expect(screen.getByText(/suppression en cours/i)).toBeInTheDocument();
    });
  });

  it('should accept custom trigger', () => {
    const customTrigger = <button>Custom Delete</button>;
    render(<TrackDelete trackId={1} trigger={customTrigger} />);

    expect(screen.getByText('Custom Delete')).toBeInTheDocument();
    expect(screen.queryByText('Supprimer')).not.toBeInTheDocument();
  });

  it('should handle 401 unauthorized error', async () => {
    const error = new TrackUploadError('Unauthorized', 'VALIDATION', false);
    vi.mocked(deleteTrack).mockRejectedValue(error);

    render(<TrackDelete trackId={1} />);

    const deleteButton = screen.getByText('Supprimer');
    await userEvent.click(deleteButton);

    await waitFor(() => {
      expect(screen.getByText('Supprimer le track ?')).toBeInTheDocument();
    });

    const confirmButton = screen.getByText('Supprimer');
    await userEvent.click(confirmButton);

    await waitFor(() => {
      expect(mockToast.error).toHaveBeenCalledWith('Unauthorized');
    });
  });

  it('should handle 403 forbidden error', async () => {
    const error = new TrackUploadError('Forbidden', 'VALIDATION', false);
    vi.mocked(deleteTrack).mockRejectedValue(error);

    render(<TrackDelete trackId={1} />);

    const deleteButton = screen.getByText('Supprimer');
    await userEvent.click(deleteButton);

    await waitFor(() => {
      expect(screen.getByText('Supprimer le track ?')).toBeInTheDocument();
    });

    const confirmButton = screen.getByText('Supprimer');
    await userEvent.click(confirmButton);

    await waitFor(() => {
      expect(mockToast.error).toHaveBeenCalledWith('Forbidden');
    });
  });

  it('should handle 404 not found error', async () => {
    const error = new TrackUploadError('Track not found', 'VALIDATION', false);
    vi.mocked(deleteTrack).mockRejectedValue(error);

    render(<TrackDelete trackId={1} />);

    const deleteButton = screen.getByText('Supprimer');
    await userEvent.click(deleteButton);

    await waitFor(() => {
      expect(screen.getByText('Supprimer le track ?')).toBeInTheDocument();
    });

    const confirmButton = screen.getByText('Supprimer');
    await userEvent.click(confirmButton);

    await waitFor(() => {
      expect(mockToast.error).toHaveBeenCalledWith('Track not found');
    });
  });
});