package jcqapi

import (
	"crypto/hmac"
	"crypto/sha1"
	"encoding/base64"
	"fmt"
	"net/http"
	"sort"
	"strings"
	"time"

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

const (
	sigKey = "signature"

	httpURL = "http://jcq-hb-yd-001-httpsrv-nlb-FI.jvessel-open-hb.jdcloud.com:8080"

	TopicCreateOrder           = "open_message_pop_order_create_E1D746D42474D5F1F1A10CECE75D99F6"
	ConsumerGroupIdCreateOrder = "open_message_573819178445"
)

type API struct {
	platformapi.APICookie

	accessKey string
	secretKey string
	client    *http.Client
	config    *platformapi.APIConfig
}

func New(accessKey, secretKey string, config ...*platformapi.APIConfig) *API {
	curConfig := platformapi.DefAPIConfig
	if len(config) > 0 {
		curConfig = *config[0]
	}
	return &API{
		accessKey: accessKey,
		secretKey: secretKey,
		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))
	sig = strings.Join(valueList, "&")
	key := []byte(a.secretKey)
	mac := hmac.New(sha1.New, key)
	mac.Write([]byte(sig))
	sEnc := base64.StdEncoding.EncodeToString(mac.Sum(nil))
	return sEnc
}

func (a *API) AccessAPI(action string, url string, bizParams map[string]interface{}) (retVal map[string]interface{}, err error) {
	params := make(map[string]interface{})
	params["accessKey"] = a.accessKey
	params["dateTime"] = time.Now().UTC().Format("2006-01-02T15:04:05Z")
	params = utils.MergeMaps(params, bizParams)
	signStr := a.signParam(params)
	params["signature"] = signStr
	err = platformapi.AccessPlatformAPIWithRetry(a.client,
		func() *http.Request {
			request, _ := http.NewRequest(http.MethodGet, utils.GenerateGetURL(url, action, params), 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 jsonResult1["error"] != nil {
					errLevel = platformapi.ErrLevelGeneralFail
					err = utils.NewErrorCode(jsonResult1["error"].(map[string]interface{})["message"].(string), jsonResult1["error"].(map[string]interface{})["code"].(string))
					baseapi.SugarLogger.Debugf("jdeclp AccessAPI failed, jsonResult1:%s", utils.Format4Output(jsonResult1, true))
				}
				retVal = jsonResult1
			}
			return errLevel, err
		})
	return retVal, err
}

type ConsumeInfoResult struct {
	RequestID string `json:"requestId"`
	Result    string `json:"result"`
}

//消费信息
//https://docs.jdcloud.com/cn/message-queue/consume-message
func (a *API) ConsumeInfo(topic, consumerGroupId string) (consumeInfoResult *ConsumeInfoResult, err error) {
	result, err := a.AccessAPI("v1/messages", httpURL, map[string]interface{}{
		"topic":           topic,
		"consumerGroupId": consumerGroupId,
		"size":            1,
	})
	if err == nil {
		utils.Map2StructByJson(result, &consumeInfoResult, false)
	}
	return consumeInfoResult, err
}