Added metrics route

controller/controller.go

@@ -49,7 +49,7 @@ func GetWeather(res http.ResponseWriter, req *http.Request, cache *types.Cache[t
 
 	weather, found := cache.GetEntry(cityName, vars.TimeToLive)
 	if found {
-		// Format weather values and then return it
+		// Format weather object and then return it
 		weather.Temperature = fmtTemperature(weather.Temperature, isImperial)
 		weather.FeelsLike = fmtTemperature(weather.FeelsLike, isImperial)
 
@@ -72,10 +72,60 @@ func GetWeather(res http.ResponseWriter, req *http.Request, cache *types.Cache[t
 		// Add result to cache
 		cache.AddEntry(weather, cityName)
 
-		// Format weather values and then return it
+		// Format weather object and then return it
 		weather.Temperature = fmtTemperature(weather.Temperature, isImperial)
 		weather.FeelsLike = fmtTemperature(weather.FeelsLike, isImperial)
 
 		jsonValue(res, weather)
 	}
 }
+
+func GetMetrics(res http.ResponseWriter, req *http.Request, cache *types.Cache[types.Metrics], vars *types.Variables) {
+	if req.Method != http.MethodGet {
+		jsonError(res, "error", "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	// Extract city name from '/metrics/:city'
+	path := strings.TrimPrefix(req.URL.Path, "/metrics/")
+	cityName := strings.Trim(path, "/") // Remove trailing slash if present
+
+	// Check whether the 'i' parameter(imperial mode) is specified
+	isImperial := req.URL.Query().Has("i")
+
+	metrics, found := cache.GetEntry(cityName, vars.TimeToLive)
+	if found {
+		// Format metrics object and then return it
+		metrics.Humidity = fmt.Sprintf("%s%%", metrics.Humidity)
+		metrics.Pressure = fmt.Sprintf("%s hPa", metrics.Pressure)
+		metrics.DewPoint = fmtTemperature(metrics.DewPoint, isImperial)
+		metrics.Visibility = fmt.Sprintf("%skm", metrics.Visibility)
+
+		jsonValue(res, metrics)
+	} else {
+		// Get city coordinates
+		city, err := model.GetCoordinates(cityName, vars.Token)
+		if err != nil {
+			jsonError(res, "error", err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		// Get city weather
+		metrics, err := model.GetMetrics(&city, vars.Token)
+		if err != nil {
+			jsonError(res, "error", err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		// Add result to cache
+		cache.AddEntry(metrics, cityName)
+
+		// Format metrics object and then return it
+		metrics.Humidity = fmt.Sprintf("%s%%", metrics.Humidity)
+		metrics.Pressure = fmt.Sprintf("%s hPa", metrics.Pressure)
+		metrics.DewPoint = fmtTemperature(metrics.DewPoint, isImperial)
+		metrics.Visibility = fmt.Sprintf("%skm", metrics.Visibility)
+
+		jsonValue(res, metrics)
+	}
+}

main.go

@@ -35,6 +35,10 @@ func main() {
 		controller.GetWeather(res, req, &cache.WeatherCache, &vars)
 	})
 
+	http.HandleFunc("/metrics/", func(res http.ResponseWriter, req *http.Request) {
+		controller.GetMetrics(res, req, &cache.MetricsCache, &vars)
+	})
+
 	listenAddr := fmt.Sprintf(":%s", port)
 	log.Printf("Server listening on %s", listenAddr)
 	http.ListenAndServe(listenAddr, nil)

model/geoModel.go

@@ -0,0 +1,45 @@
+package model
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+	"net/url"
+
+	"github.com/ceticamarco/zephyr/types"
+)
+
+func GetCoordinates(cityName string, apiKey string) (types.City, error) {
+	url, err := url.Parse(GEO_URL)
+	if err != nil {
+		return types.City{}, err
+	}
+
+	params := url.Query()
+	params.Set("q", cityName)
+	params.Set("limit", "1")
+	params.Set("appid", apiKey)
+
+	url.RawQuery = params.Encode()
+
+	res, err := http.Get(url.String())
+	if err != nil {
+		return types.City{}, err
+	}
+	defer res.Body.Close()
+
+	var geoArr []types.City
+	if err := json.NewDecoder(res.Body).Decode(&geoArr); err != nil {
+		return types.City{}, err
+	}
+
+	if len(geoArr) == 0 {
+		return types.City{}, errors.New("Cannot find this city")
+	}
+
+	return types.City{
+		Name: geoArr[0].Name,
+		Lat:  geoArr[0].Lat,
+		Lon:  geoArr[0].Lon,
+	}, nil
+}

model/metricsModel.go

@@ -0,0 +1,59 @@
+package model
+
+import (
+	"encoding/json"
+	"math"
+	"net/http"
+	"net/url"
+	"strconv"
+
+	"github.com/ceticamarco/zephyr/types"
+)
+
+func GetMetrics(city *types.City, apiKey string) (types.Metrics, error) {
+	url, err := url.Parse(WTR_URL)
+	if err != nil {
+		return types.Metrics{}, err
+	}
+
+	params := url.Query()
+	params.Set("lat", strconv.FormatFloat(city.Lat, 'f', -1, 64))
+	params.Set("lon", strconv.FormatFloat(city.Lon, 'f', -1, 64))
+	params.Set("appid", apiKey)
+	params.Set("units", "metric")
+	params.Set("exclude", "minutely,hourly,daily,alerts")
+
+	url.RawQuery = params.Encode()
+
+	res, err := http.Get(url.String())
+	if err != nil {
+		return types.Metrics{}, err
+	}
+	defer res.Body.Close()
+
+	// Structures representing the JSON response
+	type CurrentRes struct {
+		Humidity   int     `json:"humidity"`
+		Pressure   int     `json:"pressure"`
+		DewPoint   float64 `json:"dew_point"`
+		UvIndex    float64 `json:"uvi"`
+		Visibility float64 `json:"visibility"`
+	}
+
+	type MetricsRes struct {
+		Current CurrentRes `json:"current"`
+	}
+
+	var metricRes MetricsRes
+	if err := json.NewDecoder(res.Body).Decode(&metricRes); err != nil {
+		return types.Metrics{}, err
+	}
+
+	return types.Metrics{
+		Humidity:   strconv.Itoa(metricRes.Current.Humidity),
+		Pressure:   strconv.Itoa(metricRes.Current.Pressure),
+		DewPoint:   strconv.FormatFloat(metricRes.Current.DewPoint, 'f', -1, 64),
+		UvIndex:    strconv.FormatFloat(math.Round(metricRes.Current.UvIndex), 'f', -1, 64),
+		Visibility: strconv.FormatFloat((metricRes.Current.Visibility / 1000), 'f', -1, 64),
+	}, nil
+}

model/urls.go

@@ -0,0 +1,6 @@
+package model
+
+const (
+	GEO_URL = "https://api.openweathermap.org/geo/1.0/direct"
+	WTR_URL = "https://api.openweathermap.org/data/3.0/onecall"
+)

model/weatherModel.go

@@ -2,7 +2,6 @@ package model
 
 import (
 	"encoding/json"
-	"errors"
 	"net/http"
 	"net/url"
 	"strconv"
@@ -12,11 +11,6 @@ import (
 	"github.com/ceticamarco/zephyr/types"
 )
 
-const (
-	GEO_URL = "https://api.openweathermap.org/geo/1.0/direct"
-	WTR_URL = "https://api.openweathermap.org/data/3.0/onecall"
-)
-
 func getEmoji(condition string, isNight bool) string {
 	switch condition {
 	case "Thunderstorm":
@@ -27,8 +21,8 @@ func getEmoji(condition string, isNight bool) string {
 		return "🌧️"
 	case "Snow":
 		return "☃️"
-	case "Mist", "Smoke", "Haze", "Dust", "Fog", "Sand", "Ash", "Squall":
-		return "🌫️"
+	case "Mist", "Smoke", "Haze", "Dust", "Fog", "Sand", "Ash", "Squall", "Clouds":
+		return "☁️"
 	case "Tornado":
 		return "🌪️"
 	case "Clear":
@@ -39,8 +33,6 @@ func getEmoji(condition string, isNight bool) string {
 				return "☀️"
 			}
 		}
-	case "Clouds":
-		return "☁️"
 	case "SunWithCloud":
 		return "🌤️"
 	case "CloudWithSun":
@@ -50,41 +42,6 @@ func getEmoji(condition string, isNight bool) string {
 	return "❓"
 }
 
-func GetCoordinates(cityName string, apiKey string) (types.City, error) {
-	url, err := url.Parse(GEO_URL)
-	if err != nil {
-		return types.City{}, err
-	}
-
-	params := url.Query()
-	params.Set("q", cityName)
-	params.Set("limit", "1")
-	params.Set("appid", apiKey)
-
-	url.RawQuery = params.Encode()
-
-	res, err := http.Get(url.String())
-	if err != nil {
-		return types.City{}, err
-	}
-	defer res.Body.Close()
-
-	var geoArr []types.City
-	if err := json.NewDecoder(res.Body).Decode(&geoArr); err != nil {
-		return types.City{}, err
-	}
-
-	if len(geoArr) == 0 {
-		return types.City{}, errors.New("Cannot find this city")
-	}
-
-	return types.City{
-		Name: geoArr[0].Name,
-		Lat:  geoArr[0].Lat,
-		Lon:  geoArr[0].Lon,
-	}, nil
-}
-
 func GetWeather(city *types.City, apiKey string) (types.Weather, error) {
 	url, err := url.Parse(WTR_URL)
 	if err != nil {

types/cache.go

@@ -54,13 +54,9 @@ func (cache *Cache[T]) GetEntry(key string, ttl int8) (T, bool) {
 func (cache *Cache[T]) AddEntry(entry T, cityName string) {
 	currentTime := time.Now()
 
-	switch any(entry).(type) {
-	case Weather:
-		{
-			cache.Data[cityName] = CacheEntity[T]{
-				Element:   entry,
-				Timestamp: currentTime,
-			}
-		}
+	cache.Data[cityName] = CacheEntity[T]{
+		Element:   entry,
+		Timestamp: currentTime,
 	}
+
 }

types/metrics.go

@@ -6,6 +6,6 @@ type Metrics struct {
 	Humidity   string `json:"humidity"`
 	Pressure   string `json:"pressure"`
 	DewPoint   string `json:"dewPoint"`
-	UvIndex    int8   `json:"uvIndex"`
+	UvIndex    string `json:"uvIndex"`
 	Visibility string `json:"visibility"`
 }