package fnpsapi

import (
	"crypto/md5"
	"encoding/json"
	"fmt"
	"net/http"
	"sort"
	"strings"

	"git.rosy.net.cn/baseapi"
	"git.rosy.net.cn/baseapi/platformapi"
	"git.rosy.net.cn/baseapi/utils"
)

const (
	sigKey = "signature"

	TestURL = "https://exam-anubis.ele.me/anubis-webapi/v2"
	URL     = "https://open-anubis.ele.me/anubis-webapi/v2"
)

type API struct {
	accessToken string
	appID       string
	appSecret   string
	client      *http.Client
	config      *platformapi.APIConfig
}

func New(accessToken, appID, appSecret string, config ...*platformapi.APIConfig) *API {
	curConfig := platformapi.DefAPIConfig
	if len(config) > 0 {
		curConfig = *config[0]
	}
	return &API{
		accessToken: accessToken,
		appID:       appID,
		appSecret:   appSecret,
		client:      &http.Client{Timeout: curConfig.ClientTimeout},
		config:      &curConfig,
	}
}

func (a *API) signParam(params map[string]interface{}) (sig string) {
	var valueList []string
	for k, v := range params {
		if k != sigKey {
			if str := fmt.Sprint(v); str != "" {
				valueList = append(valueList, fmt.Sprintf("%s%s", k, str))
			}
		}
	}
	sort.Sort(sort.StringSlice(valueList))
	valueList = append(valueList, fmt.Sprintf("%s", a.appSecret))
	var valueList2 = make([]string, len(valueList)+1)
	at := copy(valueList2, valueList[:0])
	at += copy(valueList2[at:], []string{a.appSecret})
	copy(valueList2[at:], valueList[0:])
	sig = strings.Join(valueList2, "")
	binSig := md5.Sum([]byte(sig))
	sig = fmt.Sprintf("%X", binSig)
	return sig
}

func (a *API) AccessAPI(action string, url string, bizParams map[string]interface{}, isPost bool) (retVal map[string]interface{}, err error) {
	data, _ := json.Marshal(bizParams)
	fullURL := utils.GenerateGetURL(url, action, nil)
	err = platformapi.AccessPlatformAPIWithRetry(a.client,
		func() *http.Request {
			var request *http.Request
			if isPost {
				request, _ = http.NewRequest(http.MethodPost, fullURL, strings.NewReader(string(data)))
				request.Header.Set("Content-Type", "application/json")
			} else {
				request, _ = http.NewRequest(http.MethodGet, utils.GenerateGetURL(url, action, bizParams), nil)
			}
			return request
		},
		a.config,
		func(response *http.Response, bodyStr string, jsonResult1 map[string]interface{}) (errLevel string, err error) {
			if jsonResult1 == nil {
				return platformapi.ErrLevelRecoverableErr, fmt.Errorf("mapData is nil")
			}
			if err == nil {
				if utils.MustInterface2Int64(jsonResult1["code"]) != 200 {
					errLevel = platformapi.ErrLevelGeneralFail
					err = utils.NewErrorCode(jsonResult1["msg"].(string), utils.Int64ToStr(utils.MustInterface2Int64(jsonResult1["code"])))
					baseapi.SugarLogger.Debugf("ejiay AccessAPI failed, jsonResult1:%s", utils.Format4Output(jsonResult1, true))
				}
				retVal = jsonResult1
			}
			return errLevel, err
		})
	return retVal, err
}