// Update PvData
func updatePvData(client *http.Client,
initiateData *dataproviders.InitiateData,
pv *dataproviders.PvData) error {
log.Debug("Fetching update ...")
url := fmt.Sprintf(MonthUrl, initiateData.PlantNo, time.Now().Format(requestDateFormat))
resp, err := client.Get(url)
if err != nil {
log.Infof("Error in fetching from %s:%s", url, err.Error())
return err
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
err = fmt.Errorf("Dataprovider suntrol fail. Received http status %d from server", resp.StatusCode)
log.Infof("%s", err.Error())
return err
}
b, _ := ioutil.ReadAll(resp.Body)
log.Tracef("Received body from server: %s", b)
chartData := chartData{}
err = json.Unmarshal(b, &chartData)
if err != nil {
log.Infof("Error in umashalling json %s", err.Error())
return err
}
log.Tracef("Unmashaled charData is %s", chartData)
pv.EnergyToday = uint16(chartData.DataPart[time.Now().Day()-1].Value * 1000)
log.Tracef("pv is now %s", pv)
return nil
}
func etoday(sid string, client *http.Client,
initiateData *dataproviders.InitiateData, pv *dataproviders.PvData, resp *[]byte) error {
reg, err := regexp.Compile(etodayRegEx)
if err != nil {
log.Fail(err.Error())
return err
}
foundPart1 := reg.Find(*resp)
if len(foundPart1) < 6 {
err := fmt.Errorf("Could not find etoday in response from inverter")
return err
}
reg, err = regexp.Compile(numberRegEx)
if err != nil {
log.Fail(err.Error())
}
foundPart2 := reg.Find(foundPart1)
if len(foundPart2) < 2 {
err = fmt.Errorf("Could not find etoday in response from inverter")
return err
}
etoday := string(foundPart2[1:])
log.Debugf("Current etoday is %s", etoday)
etodayfloat, err := strconv.ParseFloat(etoday, 64)
// Are the value in kW or W?
factor := 1.0
if string(foundPart1[len(foundPart1)-1:len(foundPart1)]) == "k" {
factor = 1000.0
}
pv.EnergyToday = uint16(etodayfloat * factor)
return nil
}