package util import (	"context"	"github.com/luispater/CLIProxyAPI/internal/config"	"golang.org/x/net/proxy"	"net"	"net/http"	"net/url") func SetProxy(cfg *config.Config, httpClient *http.Client) (*http.Client, error) {	var transport *http.Transport	proxyURL, errParse := url.Parse(cfg.ProxyUrl)	if errParse == nil {		if proxyURL.Scheme == "socks5" {			username := proxyURL.User.Username()			password, _ := proxyURL.User.Password()			proxyAuth := &proxy.Auth{User: username, Password: password}			dialer, errSOCKS5 := proxy.SOCKS5("tcp", proxyURL.Host, proxyAuth, proxy.Direct)			if errSOCKS5 != nil {				return nil, errSOCKS5			}			transport = &http.Transport{				DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {					return dialer.Dial(network, addr)				},			}		} else if proxyURL.Scheme == "http" || proxyURL.Scheme == "https" {			transport = &http.Transport{Proxy: http.ProxyURL(proxyURL)}		}	}	if transport != nil {		httpClient.Transport = transport	}	return httpClient, nil}