Changing from js to golang

internal/server/weather.go

@@ -0,0 +1,97 @@
+package server
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+)
+
+const apiKey = "abb35e21bdcbad6d1b00141a2b25cf5a"
+
+type WeatherData struct {
+	Coord struct {
+		Lat float64 `json:"lat"`
+		Lon float64 `json:"lon"`
+	} `json:"coord"`
+	Weather []struct {
+		Description string `json:"description"`
+		Icon        string `json:"icon"`
+	} `json:"weather"`
+	Main struct {
+		Temp      float64 `json:"temp"`
+		FellsLike float64 `json:"fells_like"`
+		Preassure int     `json:"preassure"`
+		Humidity  int     `json:"humidity"`
+		TempMin   float64 `json:"temp_min"`
+		TempMax   float64 `json:"temp_max"`
+	} `json:"main"`
+	Wind struct {
+		Speed float64 `json:"speed"`
+		Deg   float64 `json:"deg"`
+	} `json:"wind"`
+	Clouds struct {
+		All int `json:"all"`
+	} `json:"clouds"`
+	Name string `json:"name"`
+}
+
+func getWeather(city string) (WeatherData, error) {
+	url := fmt.Sprintf("http://api.openweathermap.org/data/2.5/weather?q=%s&appid=%s&units=metric&lang=hr", city, apiKey)
+
+	resp, err := http.Get(url)
+	if err != nil {
+		return WeatherData{}, err
+	}
+	defer resp.Body.Close()
+
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return WeatherData{}, err
+	}
+	var weatherData WeatherData
+	err = json.Unmarshal(body, &weatherData)
+	if err != nil {
+		return WeatherData{}, err
+	}
+	return weatherData, nil
+}
+
+func WeatherHandler(w http.ResponseWriter, r *http.Request) {
+	cities := []string{"Sarajevo", "Banja Luka", "Zenica", "Tuzla", "Mostar"}
+
+	var weatherInfo []WeatherData
+	for _, city := range cities {
+		data, err := getWeather(city)
+		if err != nil {
+			fmt.Printf("Error fetching weather for %s: %v\n", city, err)
+			continue
+		}
+		weatherInfo = append(weatherInfo, data)
+	}
+
+	title := "Vremenska Prognoza"
+	data := map[string]interface{}{
+		"title":       title,
+		"weatherInfo": weatherInfo,
+	}
+
+	err := templates.ExecuteTemplate(w, "fullweatherHTML", data)
+	if err != nil {
+		fmt.Println("Error executing template:", err)
+		http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+	}
+	for _, info := range weatherInfo {
+		widgetData := map[string]interface{}{
+			"Temperature": info.Main.Temp,
+			"City":        info.Name,
+		}
+		err := templates.ExecuteTemplate(w, "weatherwidgetHTML", widgetData)
+		if err != nil {
+			fmt.Println("Error executing template:", err)
+			http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+			return
+		}
+	}
+
+}