init methid for new device statistics

repository/statistics/statistics.go

@@ -24,21 +24,41 @@ func NewStatisticsRepo(deps Deps) *StatisticsRepository {
 }
 
 type DeviceStatReq struct {
-	QuizId string
+	QuizId int64
 	From   uint64
 	To     uint64
 }
 
 type DeviceStatResp struct {
-	Device  map[string]float64
+	//ключ DeviceType значение процент
+	Device map[string]float64 // процентное соотношение DeviceType по всем ответам на опроc c res==true
+	// тоже самое тут только по OS и BROWSER
 	OS      map[string]float64
 	Browser map[string]float64
 }
 
-func (r *StatisticsRepository) GetDeviceStatistics(ctx context.Context, req DeviceStatReq) DeviceStatResp {
+func (r *StatisticsRepository) GetDeviceStatistics(ctx context.Context, req DeviceStatReq) (DeviceStatResp, error) {
 	resp := DeviceStatResp{
 		Device:  make(map[string]float64),
 		OS:      make(map[string]float64),
 		Browser: make(map[string]float64),
 	}
+
+	//todo подумать как в sqlc сделать не int32 а float64
+	allStatistics, err := r.queries.DeviceStatistics(ctx, sqlcgen.DeviceStatisticsParams{
+		QuizID:        req.QuizId,
+		ToTimestamp:   float64(req.From),
+		ToTimestamp_2: float64(req.To),
+	})
+	if err != nil {
+		return resp, err
+	}
+
+	for _, stat := range allStatistics {
+		resp.Device[stat.DeviceType] = float64(stat.DevicePercentage)
+		resp.OS[stat.Os] = float64(stat.OsPercentage)
+		resp.Browser[stat.Browser] = float64(stat.BrowserPercentage)
+	}
+
+	return resp, nil
 }