Code refactoring + made anomaly detection system more stable.

model/statisticsModel.go

@@ -5,37 +5,23 @@ import (
 	"slices"
 	"strconv"
 
+	"github.com/ceticamarco/zephyr/cache"
 	"github.com/ceticamarco/zephyr/statistics"
 	"github.com/ceticamarco/zephyr/types"
 )
 
-func GetStatistics(cityName string, statDB *types.StatDB) (types.StatResult, error) {
+func GetStatistics(cityName string, statCache *cache.StatCache) (types.StatResult, error) {
 	// Check whether there are sufficient and updated records for the given location
-	if statDB.IsKeyInvalid(cityName) {
+	if statCache.IsKeyInvalid(cityName) {
 		return types.StatResult{}, errors.New("insufficient or outdated data to perform statistical analysis")
 	}
 
-	extractTemps := func(weatherArr []types.Weather) ([]float64, error) {
-		temps := make([]float64, 0, len(weatherArr))
-
-		for _, weather := range weatherArr {
-			temperature, err := strconv.ParseFloat(weather.Temperature, 64)
-			if err != nil {
-				return nil, err
-			}
-			temps = append(temps, temperature)
-		}
-
-		return temps, nil
-	}
-
 	// Extract records from the database
-	stats := statDB.GetCityStatistics(cityName)
-
-	// Extract temperatures from weather statistics
-	temps, err := extractTemps(stats)
-	if err != nil {
-		return types.StatResult{}, err
+	stats := statCache.GetCityStatistics(cityName)
+	// Extract temperatures from statistics
+	temps := make([]float64, len(stats))
+	for idx, stat := range stats {
+		temps[idx] = stat.Temperature
 	}
 
 	// Detect anomalies