package instagram

import (
	"errors"
	"log"
	"net/http"
	"strconv"
)

var sem = make(chan byte, 2)
var client = &http.Client{}

func GetHTTPResource(u string) (*http.Response, error) {
	sem <- 1
	req, err := http.NewRequest("GET", u, nil)
	if err != nil {
		log.Fatalf("FAT HTTP - Failed to create new Request: %+v", err)
		<-sem
		return nil, err
	}
	res, err := client.Do(req)
	if err != nil {
		<-sem
		return nil, err
	}
	if res.StatusCode != 200 {
		res.Body.Close()
		<-sem
		return nil, errors.New(strconv.Itoa(res.StatusCode))
	}
	<-sem
	return res, nil
}