package common

import (
	"errors"
	"fmt"
	"io"
	"io/ioutil"
	"net/http"
)

func FetchURL(url string) ([]byte, error) {
	resp, err := http.Get(url)
	if resp != nil {
		defer resp.Body.Close()
	}

	if err != nil {
		return nil, err
	}

	if resp.StatusCode != 200 {
		return nil, errors.New(fmt.Sprintf("Request failed, http status: %v", resp.StatusCode))
	}

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}

	return body, nil
}

func URLReader(url string) (io.ReadCloser, error) {
	resp, err := http.Get(url)

	if resp == nil {
		return nil, errors.New("Server returned empty response")
	}

	if err != nil {
		// Even on error response may be non-nil
		resp.Body.Close()
		return nil, err
	}

	if resp.StatusCode != 200 {
		resp.Body.Close()
		return nil, errors.New(fmt.Sprintf("Request failed, http status: %v", resp.StatusCode))
	}

	return resp.Body, nil
}