import {
  handlePostEndpointHandler,
  handleGetEndpointHandler,
} from './endpoint-handler';
import nodeFetch from 'node-fetch';

jest.mock('node-fetch');

describe('handlePostEndpointHandler', () => {
  it('should return error when requestBody is null', async () => {
    const result = await handlePostEndpointHandler(
      {apiUrl: 'https://test.com'},
      null as any as {someValue: string}
    );
    expect(result).toEqual({
      success: false,
      status: 400,
      error: 'Bad request',
    });
  });

  it('should return error when fetch throws an error', async () => {
    (nodeFetch as any).mockImplementation(() => {
      throw new Error('Fetch error occurred');
    });

    const result = await handlePostEndpointHandler(
      {apiUrl: 'https://test.com'},
      {someValue: 'test'}
    );
    expect(result).toEqual({
      success: false,
      status: 500,
      error: 'Fetch error occurred',
    });
  });
});

describe('handleGetEndpointHandler', () => {
  it('should return error when id is null', async () => {
    const result = await handleGetEndpointHandler(
      {apiUrl: 'https://test.com'},
      {id: null} as any as {id: string}
    );
    expect(result).toEqual({
      success: false,
      status: 400,
      error: 'Bad request',
    });
  });

  it('should return error when id is not valid', async () => {
    const result = await handleGetEndpointHandler(
      {apiUrl: 'https://test.com'},
      {id: 'invalid id'}
    );
    expect(result).toEqual({
      success: false,
      status: 400,
      error: 'Bad request',
    });
  });

  it('should return error when fetch throws an error', async () => {
    (nodeFetch as any).mockImplementation(() => {
      throw new Error('Fetch error occurred');
    });

    const result = await handleGetEndpointHandler(
      {apiUrl: 'https://test.com'},
      {id: 'valid-id'}
    );
    expect(result).toEqual({
      success: false,
      status: 500,
      error: 'Fetch error occurred',
    });
  });
});