package radarfetch

import (
	"io"
	"net/http"
	"time"
)

const DefaultUA = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36"

func GetWithUA(url string, ua string, timeout time.Duration, extraHeaders map[string]string) ([]byte, error) {
	c := &http.Client{Timeout: timeout}
	req, err := http.NewRequest("GET", url, nil)
	if err != nil {
		return nil, err
	}
	if ua == "" {
		ua = DefaultUA
	}
	req.Header.Set("User-Agent", ua)
	for k, v := range extraHeaders {
		req.Header.Set(k, v)
	}
	resp, err := c.Do(req)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	if resp.StatusCode < 200 || resp.StatusCode > 299 {
		return nil, io.ErrUnexpectedEOF
	}
	b, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}
	return b, nil
}