/
measure.go
364 lines (316 loc) · 11.5 KB
/
measure.go
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package withings
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"math"
"net/http"
"net/url"
"reflect"
"sort"
"strconv"
"strings"
"time"
"github.com/pkg/errors"
)
// FormParam is for http request parameter.
type FormParam struct {
key string
value string
}
// OffsetBase is used to check whether lastupdate or startdate/enddate is used in GetMeas
var OffsetBase time.Time = time.Date(1970, 1, 1, 0, 0, 0, 0, time.UTC)
func createRequest(ctx context.Context, fp []FormParam, uri, method string) (*http.Request, error) {
form := url.Values{}
for _, v := range fp {
form.Add(v.key, v.value)
}
body := strings.NewReader(form.Encode())
u, err := url.ParseRequestURI(uri)
if err != nil {
return nil, err
}
req, err := http.NewRequest(method, u.String(), body)
req = req.WithContext(ctx)
if err != nil {
return nil, err
}
return req, nil
}
func parseResponse(resp *http.Response, result interface{}) error {
rbody, err := ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
return json.Unmarshal(rbody, result)
}
func reqAndParse(c *Client, fp []FormParam, url, method string, result interface{}) error {
ctx, cancel := getNewContext(c.Timeout)
defer cancel()
req, err := createRequest(ctx, fp, url, method)
if err != nil {
return err
}
resp, err := c.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
err = parseResponse(resp, result)
if err != nil {
return err
}
return nil
}
func createDataFields(fields interface{}) (string, error) {
df := []string{}
rv := reflect.ValueOf(fields)
switch rv.Kind() {
case reflect.Slice, reflect.Array:
for i := 0; i < rv.Len(); i++ {
irv := rv.Index(i)
switch irv.Kind() {
case reflect.String:
df = append(df, irv.String())
case reflect.Int:
df = append(df, fmt.Sprintf("%d", irv.Int()))
default:
return "", errors.Errorf("createDataFields allows string or int values.")
}
}
default:
return "", errors.Errorf("createDataFields Slice or Array.")
}
return strings.Join(df, ","), nil
}
// GetMeas call withings API Measure - GetMeas. (https://developer.withings.com/oauth2/#operation/measure-getmeas)
// cattype: category, 1 for real measures, 2 for user objectives
// startdate, enddate: Measure's start date, end date.
// lastupdate : Timestamp for requesting data that were updated or created after this date. Use this instead of startdate+endate.
// If lastupdate is set to a timestamp other than Offsetbase, getMeas will use lastupdate in preference to startdate/enddate.
// offset: When a first call retuns more:1 and offset:XX, set value XX in this parameter to retrieve next available rows.
// isOldToNew: If true, results must be sorted by oldest to newest. If false, results must be sorted by newest to oldest.
// isSerialized: if true, results must be parsed to Measurement.SerializedData
// mtype: Measurement Type. Set the measurement type you want to get data. See MeasType in enum.go.
func (c *Client) GetMeas(cattype CatType, startdate, enddate, lastupdate time.Time, offset int, isOldToNew, isSerialized bool, mtype ...MeasType) (*Measurement, error) {
if len(mtype) == 0 {
return nil, errors.Errorf("Need least one param as MeasType.")
}
mym := new(Measurement)
df, err := createDataFields(mtype)
if err != nil {
return nil, err
}
fp := []FormParam{
{PPaction, MeasureA},
{PPmeastype, df},
{PPcategory, fmt.Sprintf("%d", cattype)},
}
if offset != 0 {
fp = append(fp, FormParam{PPoffset, fmt.Sprintf("%d", offset)})
}
// The below sentence comes from Withings API document.
// > Timestamp for requesting data that were updated or created after this date.
// > Useful for data synchronization between systems.
// > Use this instead of startdate + enddate.
if lastupdate != OffsetBase {
fp = append(fp, FormParam{PPlastupdate, strconv.FormatInt(lastupdate.Unix(), 10)})
} else {
fp = append(fp, FormParam{PPstartdate, strconv.FormatInt(startdate.Unix(), 10)})
fp = append(fp, FormParam{PPenddate, strconv.FormatInt(enddate.Unix(), 10)})
}
err = reqAndParse(c, fp, c.MeasureURL, http.MethodPost, mym)
if err != nil {
return nil, err
}
if isOldToNew {
sort.Slice(mym.Body.Measuregrps, func(i, j int) bool {
return time.Unix(int64(mym.Body.Measuregrps[i].Date), 0).Before(time.Unix(int64(mym.Body.Measuregrps[j].Date), 0))
})
} else {
sort.Slice(mym.Body.Measuregrps, func(i, j int) bool {
return time.Unix(int64(mym.Body.Measuregrps[i].Date), 0).After(time.Unix(int64(mym.Body.Measuregrps[j].Date), 0))
})
}
if isSerialized {
mym.SerializedData, err = SerialMeas(mym)
if err != nil {
mym.SerializedData = nil
return mym, err
}
}
return mym, nil
}
// SerialMeas will parse measurement results.
func SerialMeas(mym *Measurement) (*SerialzedMeas, error) {
sm := new(SerialzedMeas)
for _, mGrp := range mym.Body.Measuregrps {
for _, meas := range mGrp.Measures {
val := MeasureData{
GrpID: mGrp.GrpID,
Date: time.Unix(int64(mGrp.Date), 0),
Value: float64(meas.Value) * math.Pow10(meas.Unit),
Attrib: mGrp.Attrib,
Category: mGrp.Category,
DeviceID: mGrp.DeviceID,
}
switch meas.Type {
case int(Weight):
sm.Weights = append(sm.Weights, val)
case int(Height):
sm.Heights = append(sm.Heights, val)
case int(FatFreeMass):
sm.FatFreeMass = append(sm.FatFreeMass, val)
case int(FatRatio):
sm.FatRatios = append(sm.FatRatios, val)
case int(FatMassWeight):
sm.FatMassWeights = append(sm.FatMassWeights, val)
case int(DiastolicBP):
sm.DiastolicBPs = append(sm.DiastolicBPs, val)
case int(SystolicBP):
sm.SystolicBPs = append(sm.SystolicBPs, val)
case int(HeartPulse):
sm.HeartPulses = append(sm.HeartPulses, val)
case int(Temp):
sm.Temps = append(sm.Temps, val)
case int(SPO2):
sm.SPO2s = append(sm.SPO2s, val)
case int(BodyTemp):
sm.BodyTemps = append(sm.BodyTemps, val)
case int(SkinTemp):
sm.SkinTemps = append(sm.SkinTemps, val)
case int(MuscleMass):
sm.MuscleMasses = append(sm.MuscleMasses, val)
case int(Hydration):
sm.Hydration = append(sm.Hydration, val)
case int(BoneMass):
sm.BoneMasses = append(sm.BoneMasses, val)
case int(PWaveVel):
sm.PWaveVel = append(sm.PWaveVel, val)
case int(VO2):
sm.VO2s = append(sm.VO2s, val)
default:
sm.UnknowVals = append(sm.UnknowVals, val)
}
}
}
return sm, nil
}
// GetActivity call withings API Measure v2 - Getactivity. (https://developer.withings.com/oauth2/#operation/measurev2-getactivity)
// startdate/enddate: Activity result start date, end date.
// lastupdate : Timestamp for requesting data that were updated or created after this date. Use this instead of startdate+endate.
// If lastupdate is set to a timestamp other than Offsetbase, getMeas will use lastupdate in preference to startdate/enddate.
// offset: When a first call retuns more:1 and offset:XX, set value XX in this parameter to retrieve next available rows.
// atype: Acitivity Type. Set the activity type you want to get data. See ActivityType in enum.go.
func (c *Client) GetActivity(startdate, enddate string, lastupdate int, offset int, atype ...ActivityType) (*Activities, error) {
if len(atype) == 0 {
return nil, errors.Errorf("Need least one param as ActivityType.")
}
act := new(Activities)
df, err := createDataFields(atype)
var fp []FormParam = []FormParam{
{PPaction, ActivityA},
{PPoffset, fmt.Sprintf("%d", offset)},
{PPdataFields, df},
}
if startdate == "" || enddate == "" {
fp = append(fp, FormParam{PPlastupdate, fmt.Sprintf("%d", lastupdate)})
} else {
fp = append(fp, FormParam{PPstartdateymd, startdate}, FormParam{PPenddateymd, enddate})
}
err = reqAndParse(c, fp, c.MeasureURLv2, http.MethodPost, act)
if err != nil {
return nil, err
}
return act, nil
}
// GetWorkouts call withings API Measure v2 - Getworkouts. (https://developer.withings.com/api-reference#operation/measurev2-getworkouts)
// startdate/enddate: Workouts result start date, end date.
// lastupdate : Timestamp for requesting data that were updated or created after this date. Use this instead of startdate+endate.
// If lastupdate is set to a timestamp other than Offsetbase, GetWorkouts will use lastupdate in preference to startdate/enddate.
// offset: When a first call retuns more:1 and offset:XX, set value XX in this parameter to retrieve next available rows.
// wtype: Workout Type. Set the workout type you want to get data. See WorkoutType in enum.go.
func (c *Client) GetWorkouts(startdate, enddate string, lastupdate int, offset int, wtype ...WorkoutType) (*Workouts, error) {
if len(wtype) == 0 {
return nil, errors.Errorf("Need least one param as WorkoutType.")
}
workouts := new(Workouts)
df, err := createDataFields(wtype)
var fp []FormParam = []FormParam{
{PPaction, WorkoutsA},
{PPoffset, fmt.Sprintf("%d", offset)},
{PPdataFields, df},
}
if startdate == "" || enddate == "" {
fp = append(fp, FormParam{PPlastupdate, fmt.Sprintf("%d", lastupdate)})
} else {
fp = append(fp, FormParam{PPstartdateymd, startdate}, FormParam{PPenddateymd, enddate})
}
err = reqAndParse(c, fp, c.MeasureURLv2, http.MethodPost, workouts)
if err != nil {
return nil, err
}
return workouts, nil
}
// GetSleep cal withings API Sleep v2 - Get. (https://developer.withings.com/oauth2/#operation/sleepv2-get)
// startdate/enddate: Measures' start date, end date.
// stype: Sleep Type. Set the sleep type you want to get data. See SleepType in enum.go.
func (c *Client) GetSleep(startdate, enddate time.Time, stype ...SleepType) (*Sleeps, error) {
if len(stype) == 0 {
return nil, errors.Errorf("Need least one param as SleepType.")
}
df, err := createDataFields(stype)
if err != nil {
return nil, err
}
var fp []FormParam = []FormParam{
{PPaction, SleepA},
{PPstartdate, strconv.FormatInt(startdate.Unix(), 10)},
{PPenddate, strconv.FormatInt(enddate.Unix(), 10)},
{PPdataFields, df},
}
slp := new(Sleeps)
err = reqAndParse(c, fp, c.SleepURLv2, http.MethodPost, slp)
if err != nil {
return nil, err
}
// sort by startdate
sort.Slice(slp.Body.Series, func(i, j int) bool {
return slp.Body.Series[i].Startdate < slp.Body.Series[j].Startdate
})
return slp, nil
}
// GetSleepSummary call withings API Sleep v2 - Getsummary. (https://developer.withings.com/oauth2/#operation/sleepv2-getsummary)
// startdate/enddate: Measurement result start date, end date.
// lastupdate : Timestamp for requesting data that were updated or created after this date. Use this instead of startdate+endate.
// If lastupdate is set to a timestamp other than Offsetbase, getMeas will use lastupdate in preference to startdate/enddate.
// stype: Sleep Summaries Type. Set the sleep summaries data you want to get. See SleepSummariesType in enum.go.
func (c *Client) GetSleepSummary(startdate, enddate string, lastupdate int, sstype ...SleepSummariesType) (*SleepSummaries, error) {
if len(sstype) == 0 {
return nil, errors.Errorf("Need least one param as SleepSummariesType.")
}
df, err := createDataFields(sstype)
if err != nil {
return nil, err
}
var fp []FormParam = []FormParam{
{PPaction, SleepSA},
{PPdataFields, df},
}
if startdate == "" || enddate == "" {
fp = append(fp, FormParam{PPlastupdate, fmt.Sprintf("%d", lastupdate)})
} else {
fp = append(fp, FormParam{PPstartdateymd, startdate}, FormParam{PPenddateymd, enddate})
}
slpss := new(SleepSummaries)
err = reqAndParse(c, fp, c.SleepURLv2, http.MethodPost, slpss)
if err != nil {
return nil, err
}
// sort by startdate
sort.Slice(slpss.Body.Series, func(i, j int) bool {
return slpss.Body.Series[i].Startdate < slpss.Body.Series[j].Startdate
})
return slpss, nil
}