package libs

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

// GetJSON 请求 JSON 接口并返回对象。
func GetJSON(rawURL string, timeout time.Duration) ([]byte, error) {
	req, err := http.NewRequest(http.MethodGet, rawURL, nil)
	if err != nil {
		return nil, err
	}
	req.Header.Set("Accept", "application/json")
	req.Header.Set("User-Agent", "big-qmt-go/1")
	client := &http.Client{Timeout: timeout}
	resp, err := client.Do(req)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}
	if resp.StatusCode >= 400 {
		return nil, fmt.Errorf("http %d: %s", resp.StatusCode, strings.TrimSpace(string(body)))
	}
	return body, nil
}