package libs

import (
	"encoding/json"
	"fmt"
	"log"
)

var (
	Dcm_Signal = "/a/dcm_signal"
)

type SignalResult struct {
	Code    string                `json:"code"`
	Total   int                   `json:"total"`
	Updated string                `json:"updated"`
	Data    map[string]SignalItem `json:"data"`
	Message string                `json:"message"`
}

type SignalItem struct {
	Code          string             `json:"code"`
	Name          string             `json:"name"`
	Desc          string             `json:"desc"`
	LastClose     float64            `json:"last_close"`
	TechIndicator map[string]float64 `json:"tech_indicator"`
}

// FetchSignals 启动时读取信号，运行期间直接使用内存数据。
func FetchSignal(subUrl, host_key string) (*SignalResult, error) {
	// gen url.
	fullUrl := fmt.Sprintf("%s%s?host_key=%s&t=%s", API_HOST, subUrl, host_key, randStr(16))
	// doing
	payload, err := GetJSON(fullUrl, HTTPTimeout)
	if err != nil {
		log.Printf("[ERROR] 获取60m大盘信号失败: %s %v", fullUrl, err)
		return nil, err
	}

	var result SignalResult
	err = json.Unmarshal(payload, &result)
	if err != nil {
		return nil, err
	}
	return &result, nil
}