package tick

import (
	"net/http"
	"tickserver/server/market"
)
import "io/ioutil"
import "crypto/rand"
import "encoding/json"
import "encoding/hex"

//import "log"

//在检查之前，确定已经登录

type JsonResponse struct {
	Result interface{} `json:"result"`
	Err    string      `json:"err"`
	Code   int         `json:"code"`
}

func NewJsonResponse(data interface{}, err string, code int) *JsonResponse {
	resp := &JsonResponse{}
	resp.Result = data
	resp.Err = err
	resp.Code = code
	return resp
}

func readRequest(w http.ResponseWriter, r *http.Request) ([]byte, error) {
	data, err := ioutil.ReadAll(r.Body)
	if err != nil {
		return nil, err
	}
	return data, nil
}

func decodeRequestInner(w http.ResponseWriter, r *http.Request, data []byte, v interface{}) error {
	err := json.Unmarshal(data, v)
	if err != nil {
		return err
	}
	return err
}

func decodeRequest(w http.ResponseWriter, r *http.Request, v interface{}) error {
	data, err := readRequest(w, r)
	if err != nil {
		return err
	}
	return decodeRequestInner(w, r, data, v)
}

func sendErrResponse(w http.ResponseWriter, r *http.Request, code int, err string) {
	w.WriteHeader(code)
	res := NewJsonResponse(nil, err, -1)
	s, _ := json.Marshal(res)
	w.Write(s)
}

func sendResponse(w http.ResponseWriter, r *http.Request, data interface{}) {
	w.WriteHeader(http.StatusOK)
	res := NewJsonResponse(data, "", 0)
	s, err := json.Marshal(res)
	if err != nil {
		sendErrResponse(w, r, 200, err.Error())
		return
	}
	w.Write(s)
}

func getId() string {
	var b [5]byte
	rand.Read(b[:])
	return hex.EncodeToString(b[:])
}

func checkTime(exId string, ts int64) bool {
	var tis []tInterval
	switch exId {
	case "SHFE": // 上海期货交易所
		tis = shefTi
	case "CFFEX": // 中国金融期货交易所
		tis = cffexTi
	case "DCE", "CZCE": //大连、郑州商品交易所
		tis = decAndCzceTi
	default:
		panic("can't go here")
	}
	t := market.GetTime(ts)
	//log.Println("debug checktime", t)
	mm := t.Hour()*60 + t.Minute()
	for _, ti := range tis {
		m1 := ti.st.hour*60 + ti.st.minute
		m2 := ti.et.hour*60 + ti.et.minute
		if mm >= m1 && mm <= m2 {
			return true
		}
	}
	return false
}