package config

import (
	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"time"
)

type RemoteConfigLoader struct {
	client *http.Client
}

func NewRemoteConfigLoader() *RemoteConfigLoader {
	return &RemoteConfigLoader{
		client: &http.Client{Timeout: 10 * time.Second},
	}
}

func (l *RemoteConfigLoader) LoadConfigs(OfficialURL, UserURL string) (*OfficialConfig, *UserConfig, error) {
	var officialCfg OfficialConfig
	var userCfg UserConfig

	// 加载官方配置
	if err := l.fetchJSON(OfficialURL, &officialCfg); err != nil {
		return nil, nil, fmt.Errorf("[致命错误]加载官方配置失败: %v", err)
	}

	// 加载用户配置
	if err := l.fetchJSON(UserURL, &userCfg); err != nil {
		return nil, nil, fmt.Errorf("[致命错误]加载用户配置失败: %v", err)
	}

	return &officialCfg, &userCfg, nil
}

func (l *RemoteConfigLoader) fetchJSON(url string, target interface{}) error {
	resp, err := l.client.Get(url)
	if err != nil {
		return err
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		return fmt.Errorf("请求失败: %s", resp.Status)
	}

	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return err
	}

	return json.Unmarshal(body, target)
}