/* eslint-disable @typescript-eslint/no-explicit-any */
import { render, screen, fireEvent } from '@testing-library/react';

import '@testing-library/jest-dom';
import { vi, describe, it, expect, beforeEach } from 'vitest';
import Timetable from '../../../../src/components/stats/SleepTimetable';
import { useStats } from '../../../../src/hooks/useStats';

vi.mock('../../../../src/hooks/useStats', () => ({
  useStats: vi.fn(),
}));

describe('SleepTimetable', () => {
  const defaultProps = {
    from_date: '2025-04-18',
    to_date: '2025-04-25',
    day_start: '22:00',
    day_end: '08:00',
  };

  beforeEach(() => {
    vi.clearAllMocks();
    vi.stubGlobal('innerWidth', 1024);
  });

  it('renders loading state', () => {
    (useStats as any).mockReturnValue({ timetable: null, isLoading: true });
    render(<Timetable {...defaultProps} />);
    expect(screen.getByText(/Loading timetable.../i)).toBeInTheDocument();
  });

  it('renders empty state when no data is available', () => {
    (useStats as any).mockReturnValue({ timetable: { slots: [] }, isLoading: false });
    render(<Timetable {...defaultProps} />);
    expect(screen.getByText(/No data available/i)).toBeInTheDocument();
  });

  it('renders in desktop mode (chronological order)', () => {
    (useStats as any).mockReturnValue({
      timetable: { slots: [{ date: '2025-04-18', sleeping: true, slot_start: '01:00', slot_end: '05:00' }] },
      isLoading: false,
    });

    vi.stubGlobal('innerWidth', 1024);
    render(<Timetable {...defaultProps} />);

    // Check for day headers in chronological order
    const days = screen.getAllByText(/^[A-Z]{3}$/i); // SUN, MON, etc.
    // 2025-04-18 is Friday (FRI)
    expect(days[0]).toHaveTextContent(/FRI/i);
    expect(days[1]).toHaveTextContent(/SAT/i);
  });

  it('renders in medium mode (3-day tabs and 3-column grid)', () => {
    (useStats as any).mockReturnValue({
      timetable: { slots: [{ date: '2025-04-18', sleeping: true, slot_start: '01:00', slot_end: '05:00' }] },
      isLoading: false,
    });

    vi.stubGlobal('innerWidth', 600);
    render(<Timetable {...defaultProps} />);
    fireEvent(window, new Event('resize'));

    // Check for 3-day interval tabs
    // In reversed order (25, 24, 23...), the first group is Fri - Wed
    expect(screen.getByRole('button', { name: /FRI - WED/i })).toBeInTheDocument();
  });

  it('renders in small mode (single-day tabs and 1-column grid)', () => {
    (useStats as any).mockReturnValue({
      timetable: { slots: [{ date: '2025-04-18', sleeping: true, slot_start: '01:00', slot_end: '05:00' }] },
      isLoading: false,
    });

    vi.stubGlobal('innerWidth', 300);
    render(<Timetable {...defaultProps} />);
    fireEvent(window, new Event('resize'));

    // Check for single-day tabs
    const dayTabs = screen.getAllByRole('button');
    // At least one tab should have the text FRI
    const friTab = dayTabs.find(tab => tab.textContent?.toUpperCase().includes('FRI'));
    expect(friTab).toBeInTheDocument();
  });

  it('colors sleeping intervals correctly', () => {
    (useStats as any).mockReturnValue({
      timetable: {
        slots: [
          {
            date: '2025-04-18',
            sleeping: true,
            slot_start: '01:00',
            slot_end: '03:00', // Covers 01:00 and 02:00
          },
        ],
      },
      isLoading: false,
    });

    const { container } = render(<Timetable {...defaultProps} />);

    // We are looking for the grid cells. 
    // Since they don't have text, we look at their classes/backgrounds.
    
    const greenCells = container.querySelectorAll('.bg-green-500');
    expect(greenCells.length).toBeGreaterThan(0);

    const grayCells = container.querySelectorAll('.bg-gray-50');
    expect(grayCells.length).toBeGreaterThan(0);
  });
});