package dialer

import (
	"crypto/tls"
	"fmt"
	"net"
	"net/url"
)

func (d *Dialer) Dial() (net.Conn, error) {
	if d.dialURL.Scheme == "https" {
		return tls.Dial("tcp", d.dialURL.Host, &tls.Config{
			ServerName:         d.dialURL.Hostname(),
			InsecureSkipVerify: d.app.Config().Upstream.InsecureTLS,
		})
	}

	return net.Dial("tcp", d.dialURL.Host)
}

func (d *Dialer) UpstreamURL() (*url.URL, error) {
	if d.app.Config().Upstream.URL == "" {
		return nil, fmt.Errorf(
			"%w: %w (%s)", ErrDialer, ErrUpstreamURL,
			"upstream URL is empty",
		)
	}

	u, err := url.Parse(d.app.Config().Upstream.URL)
	if err != nil {
		return nil, fmt.Errorf(
			"%w: %w (%w)", ErrDialer, ErrUpstreamURL, err,
		)
	}

	return u, nil
}