import React from 'react';
import { mount } from 'enzyme';
import { I18nProvider } from '@lingui/react';
import Pagination from '../../src/components/Pagination';

describe('<Pagination />', () => {
  let pagination;

  afterEach(() => {
    if (pagination) {
      pagination.unmount();
      pagination = null;
    }
  });

  test('it triggers the expected callbacks on next and last', () => {
    const next = 'button[aria-label="Next"]';
    const last = 'button[aria-label="Last"]';

    const onSetPage = jest.fn();

    pagination = mount(
      <I18nProvider>
        <Pagination
          count={21}
          page={1}
          pageCount={5}
          page_size={5}
          pageSizeOptions={[5, 10, 25, 50]}
          onSetPage={onSetPage}
        />
      </I18nProvider>
    );

    pagination.find(next).simulate('click');

    expect(onSetPage).toHaveBeenCalledTimes(1);
    expect(onSetPage).toBeCalledWith(2, 5);

    pagination.find(last).simulate('click');

    expect(onSetPage).toHaveBeenCalledTimes(2);
    expect(onSetPage).toBeCalledWith(5, 5);
  });

  test('it triggers the expected callback on previous and first', () => {
    const previous = 'button[aria-label="Previous"]';
    const first = 'button[aria-label="First"]';

    const onSetPage = jest.fn();

    pagination = mount(
      <I18nProvider>
        <Pagination
          count={21}
          page={5}
          pageCount={5}
          page_size={5}
          pageSizeOptions={[5, 10, 25, 50]}
          onSetPage={onSetPage}
        />
      </I18nProvider>
    );

    pagination.find(previous).simulate('click');

    expect(onSetPage).toHaveBeenCalledTimes(1);
    expect(onSetPage).toBeCalledWith(4, 5);

    pagination.find(first).simulate('click');

    expect(onSetPage).toHaveBeenCalledTimes(2);
    expect(onSetPage).toBeCalledWith(1, 5);
  });
});