/**
 * @Author:  jager
 * @Email:   lhj168os@gmail.com
 * @File:    fund
 * @Date:    2021/12/1 3:05 下午
 * @package: fund
 * @Version: v1.0.0
 *
 * @Description:
 *
 */

package fund

import (
	"encoding/json"
	"fmt"
	"github.com/jageros/hawox/errcode"
	"github.com/jageros/hawox/httpc"
	"github.com/jageros/hawox/logx"
	"regexp"
	"strconv"
)

const (
	baseUrl = "http://fundgz.1234567.com.cn/js/%s.js"
)

var (
	jsonStr      = regexp.MustCompile(`{(.*?)}`)
)

type fund struct {
	Code        string `json:"fundcode"`
	Name        string `json:"name"`
	UnitVal     string `json:"dwjz"`
	EstimateVal string `json:"gsz"`
	RisePer     string `json:"gszzl"`
	UpdateTime  string `json:"gztime"`
}

func (f *fund) Msg() string {
	var rise string
	last, err1 := strconv.ParseFloat(f.UnitVal, 64)
	cur, err2 := strconv.ParseFloat(f.EstimateVal, 64)
	if err1 == nil && err2 == nil {
		rise = fmt.Sprintf("%.5f", cur-last)
	}
	msg := fmt.Sprintf(msgTemplate, f.Name, f.UpdateTime, f.UnitVal, f.EstimateVal, rise, f.RisePer)
	return msg
}

func FundsMsg(codes ...string) string {
	if len(codes) <= 0 {
		return ""
	}
	var msg = "基金定投估值 >>>\n"
	for _, code := range codes {
		fd, err := newFund(code)
		if err != nil {
			logx.Error(err)
			continue
		}
		msg += fd.Msg()
	}
	return msg
}

func newFund(code string) (*fund, error) {
	url := fmt.Sprintf(baseUrl, code)
	result, err := httpc.Request(httpc.GET, url, httpc.FORM, nil, nil)
	if err != nil {
		return nil, err
	}
	ss := jsonStr.FindStringSubmatch(string(result))
	if len(ss) <= 0 {
		return nil, errcode.New(404, "找不到基金："+code)
	}
	ff := &fund{}
	err = json.Unmarshal([]byte(ss[0]), ff)
	return ff, err
}

const msgTemplate = `%s
更新时间：%s
单位净值：%s  估算净值：%s
估算涨幅：(%s) %s%%

`