import { render, screen } from '@testing-library/react';
import userEvent from '@testing-library/user-event';
import { describe, expect, it, vi } from 'vitest';
import { Tabs, TabsList, TabsTrigger, TabsContent } from '../tabs';

describe('Tabs', () => {
  it('renders the active tab content', () => {
    render(
      <Tabs value="tab1" onValueChange={vi.fn()}>
        <TabsList>
          <TabsTrigger value="tab1">Tab 1</TabsTrigger>
          <TabsTrigger value="tab2">Tab 2</TabsTrigger>
        </TabsList>
        <TabsContent value="tab1">Content 1</TabsContent>
        <TabsContent value="tab2">Content 2</TabsContent>
      </Tabs>,
    );

    expect(screen.getByText('Content 1')).toBeInTheDocument();
    expect(screen.queryByText('Content 2')).not.toBeInTheDocument();
  });

  it('hides inactive tab content', () => {
    render(
      <Tabs value="tab2" onValueChange={vi.fn()}>
        <TabsList>
          <TabsTrigger value="tab1">Tab 1</TabsTrigger>
          <TabsTrigger value="tab2">Tab 2</TabsTrigger>
        </TabsList>
        <TabsContent value="tab1">Content 1</TabsContent>
        <TabsContent value="tab2">Content 2</TabsContent>
      </Tabs>,
    );

    expect(screen.queryByText('Content 1')).not.toBeInTheDocument();
    expect(screen.getByText('Content 2')).toBeInTheDocument();
  });

  it('calls onValueChange when a trigger is clicked', async () => {
    const onValueChange = vi.fn();
    render(
      <Tabs value="tab1" onValueChange={onValueChange}>
        <TabsList>
          <TabsTrigger value="tab1">Tab 1</TabsTrigger>
          <TabsTrigger value="tab2">Tab 2</TabsTrigger>
        </TabsList>
        <TabsContent value="tab1">Content 1</TabsContent>
        <TabsContent value="tab2">Content 2</TabsContent>
      </Tabs>,
    );

    await userEvent.click(screen.getByText('Tab 2'));
    expect(onValueChange).toHaveBeenCalledWith('tab2');
  });

  it('renders all trigger buttons', () => {
    render(
      <Tabs value="tab1" onValueChange={vi.fn()}>
        <TabsList>
          <TabsTrigger value="tab1">First</TabsTrigger>
          <TabsTrigger value="tab2">Second</TabsTrigger>
          <TabsTrigger value="tab3">Third</TabsTrigger>
        </TabsList>
        <TabsContent value="tab1">C1</TabsContent>
        <TabsContent value="tab2">C2</TabsContent>
        <TabsContent value="tab3">C3</TabsContent>
      </Tabs>,
    );

    expect(screen.getByText('First')).toBeInTheDocument();
    expect(screen.getByText('Second')).toBeInTheDocument();
    expect(screen.getByText('Third')).toBeInTheDocument();
  });

  it('applies active styles to selected trigger', () => {
    render(
      <Tabs value="tab1" onValueChange={vi.fn()}>
        <TabsList>
          <TabsTrigger value="tab1" data-testid="trigger-1">Tab 1</TabsTrigger>
          <TabsTrigger value="tab2" data-testid="trigger-2">Tab 2</TabsTrigger>
        </TabsList>
        <TabsContent value="tab1">Content</TabsContent>
      </Tabs>,
    );

    expect(screen.getByTestId('trigger-1')).toHaveClass('bg-background');
    expect(screen.getByTestId('trigger-2')).not.toHaveClass('bg-background');
  });

  it('applies custom className to TabsList', () => {
    render(
      <Tabs value="tab1" onValueChange={vi.fn()}>
        <TabsList className="custom-list" data-testid="list">
          <TabsTrigger value="tab1">Tab 1</TabsTrigger>
        </TabsList>
        <TabsContent value="tab1">Content</TabsContent>
      </Tabs>,
    );

    expect(screen.getByTestId('list')).toHaveClass('custom-list');
  });

  it('applies custom className to TabsContent', () => {
    render(
      <Tabs value="tab1" onValueChange={vi.fn()}>
        <TabsList>
          <TabsTrigger value="tab1">Tab 1</TabsTrigger>
        </TabsList>
        <TabsContent value="tab1" className="custom-content" data-testid="content">
          Content
        </TabsContent>
      </Tabs>,
    );

    expect(screen.getByTestId('content')).toHaveClass('custom-content');
  });
});