Add weather service

compose.yml

@@ -36,6 +36,7 @@ services:
       - LOG_LEVEL=debug
       - TITLE=DEV
       - APP_VERSION=v0.0.1-dev
+      - WEATHER_KEY=${WEATHER_KEY}
     volumes:
       - .:/app/
     ports:

handlers/app.handlers.go

@@ -16,11 +16,16 @@ type SystemService interface {
 	GetStaticInformation() *services.StaticInformation
 }
 
-func NewAppHandler(env *env.Config, s SystemService, b BookmarkService) *AppHandler {
+type WeatherService interface {
+	GetCurrentWeather() *services.OpenWeather
+}
+
+func NewAppHandler(env *env.Config, s SystemService, w WeatherService, b BookmarkService) *AppHandler {
 
 	return &AppHandler{
 		env:             env,
 		SystemService:   s,
+		WeatherService:  w,
 		BookmarkService: b,
 	}
 }
@@ -28,6 +33,7 @@ func NewAppHandler(env *env.Config, s SystemService, b BookmarkService) *AppHand
 type AppHandler struct {
 	env             *env.Config
 	SystemService   SystemService
+	WeatherService  WeatherService
 	BookmarkService BookmarkService
 }
 
@@ -35,8 +41,9 @@ func (bh *AppHandler) appHandler(c echo.Context) error {
 	bookmarks := bh.BookmarkService.GetAllBookmarks()
 	staticSystem := bh.SystemService.GetStaticInformation()
 	liveSystem := bh.SystemService.GetLiveInformation()
+	weather := bh.WeatherService.GetCurrentWeather()
 
 	titlePage := bh.env.Title
 
-	return renderView(c, home.HomeIndex(titlePage, bh.env.Version, bookmarks, staticSystem, liveSystem, home.Home(titlePage, bookmarks, staticSystem, liveSystem)))
+	return renderView(c, home.HomeIndex(titlePage, bh.env.Version, bookmarks, staticSystem, liveSystem, weather, home.Home(titlePage, bookmarks, staticSystem, liveSystem, weather)))
 }

internal/env/env.go

@@ -8,10 +8,16 @@ import (
 )
 
 type Config struct {
-	TimeZone string `env:"TZ" envDefault:"Etc/UTC" validate:"timezone"`
+	TimeZone          string  `env:"TZ" envDefault:"Etc/UTC" validate:"timezone"`
-	Title    string `env:"TITLE" envDefault:"goDash"`
+	Title             string  `env:"TITLE" envDefault:"goDash"`
-	Port     int    `env:"PORT" envDefault:"4000" validate:"min=1024,max=49151"`
+	Port              int     `env:"PORT" envDefault:"4000" validate:"min=1024,max=49151"`
-	Version  string `env:"APP_VERSION"`
+	Version           string  `env:"APP_VERSION"`
+	LocationLatitude  float32 `env:"LOCATION_LATITUDE" envDefault:"48.780331609463815"`
+	LocationLongitude float32 `env:"LOCATION_LONGITUDE" envDefault:"9.177968320179422"`
+	WeatherKey        string  `env:"WEATHER_KEY"`
+	WeatherUnits      string  `env:"WEATHER_UNITS" envDefault:"metric"`
+	WeatherLanguage   string  `env:"WEATHER_LANG" envDefault:"en"`
+	WeatherDigits     bool    `env:"WEATHER_DIGITS" envDefault:"true"`
 }
 
 var errParse = errors.New("error parsing environment variables")

main.go

@@ -42,9 +42,10 @@ func main() {
 	sse.AutoReplay = false
 
 	s := services.NewSystemService(sse)
+	w := services.NewWeatherService(sse, env)
 	b := services.NewBookmarkService()
 
-	ah := handlers.NewAppHandler(env, s, b)
+	ah := handlers.NewAppHandler(env, s, w, b)
 	handlers.SetupRoutes(e, sse, ah)
 
 	slog.Info("starting server", "url", fmt.Sprintf("http://localhost:%d", env.Port))

services/weather.services.go

@@ -0,0 +1,77 @@
+package services
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"log/slog"
+	"math"
+	"net/http"
+	"time"
+
+	"github.com/r3labs/sse/v2"
+	"gitlab.unjx.de/flohoss/godash/internal/env"
+)
+
+func NewWeatherService(sse *sse.Server, env *env.Config) *WeatherService {
+	var w = WeatherService{sse: sse, env: env}
+	w.setWeatherUnits()
+	sse.CreateStream("weather")
+	go w.updateWeather(time.Second * 90)
+	return &w
+}
+
+func (w *WeatherService) GetCurrentWeather() *OpenWeather {
+	return &w.CurrentWeather
+}
+
+func (w *WeatherService) setWeatherUnits() {
+	if w.env.WeatherUnits == "imperial" {
+		w.CurrentWeather.Units = "°F"
+	} else {
+		w.CurrentWeather.Units = "°C"
+	}
+}
+
+func (w *WeatherService) copyWeatherValues(weatherResp *OpenWeatherApiResponse) {
+	myTime := time.Unix(weatherResp.Sys.Sunrise, 0)
+	w.CurrentWeather.Sunrise = myTime.Format("15:04")
+	myTime = time.Unix(weatherResp.Sys.Sunset, 0)
+	w.CurrentWeather.Sunset = myTime.Format("15:04")
+	w.CurrentWeather.Icon = weatherResp.Weather[0].Icon
+	if w.env.WeatherDigits {
+		w.CurrentWeather.Temp = weatherResp.Main.Temp
+	} else {
+		w.CurrentWeather.Temp = math.Round(weatherResp.Main.Temp)
+	}
+	w.CurrentWeather.Description = weatherResp.Weather[0].Description
+	w.CurrentWeather.Humidity = weatherResp.Main.Humidity
+}
+
+func (w *WeatherService) updateWeather(interval time.Duration) {
+	var weatherResponse OpenWeatherApiResponse
+	for {
+		resp, err := http.Get(fmt.Sprintf("https://api.openweathermap.org/data/2.5/weather?lat=%f&lon=%f&appid=%s&units=%s&lang=%s",
+			w.env.LocationLatitude,
+			w.env.LocationLongitude,
+			w.env.WeatherKey,
+			w.env.WeatherUnits,
+			w.env.WeatherLanguage))
+		if err != nil || resp.StatusCode != 200 {
+			slog.Error("weather cannot be updated, please check WEATHER_KEY")
+		} else {
+			body, _ := io.ReadAll(resp.Body)
+			err = json.Unmarshal(body, &weatherResponse)
+			if err != nil {
+				slog.Error("weather cannot be processed")
+			} else {
+				w.copyWeatherValues(&weatherResponse)
+				slog.Info("weather updated", "temp", w.CurrentWeather.Temp)
+			}
+			resp.Body.Close()
+			json, _ := json.Marshal(w.CurrentWeather)
+			w.sse.Publish("weather", &sse.Event{Data: json})
+		}
+		time.Sleep(interval)
+	}
+}

services/weather.types.go

@@ -0,0 +1,43 @@
+package services
+
+import (
+	"github.com/r3labs/sse/v2"
+	"gitlab.unjx.de/flohoss/godash/internal/env"
+)
+
+type WeatherService struct {
+	CurrentWeather OpenWeather
+	sse            *sse.Server
+	env            *env.Config
+}
+
+type OpenWeather struct {
+	Icon        string  `json:"icon"`
+	Temp        float64 `json:"temp"`
+	Description string  `json:"description"`
+	Humidity    uint8   `json:"humidity"`
+	Sunrise     string  `json:"sunrise"`
+	Sunset      string  `json:"sunset"`
+	Units       string  `json:"units"`
+}
+
+type OpenWeatherApiResponse struct {
+	Weather []OpenWeatherApiWeather `json:"Weather"`
+	Main    OpenWeatherApiMain      `json:"main"`
+	Sys     OpenWeatherApiSys       `json:"sys"`
+}
+
+type OpenWeatherApiWeather struct {
+	Description string `json:"description"`
+	Icon        string `json:"icon"`
+}
+
+type OpenWeatherApiMain struct {
+	Temp     float64 `json:"temp"`
+	Humidity uint8   `json:"humidity"`
+}
+
+type OpenWeatherApiSys struct {
+	Sunrise int64 `json:"sunrise"`
+	Sunset  int64 `json:"sunset"`
+}

views/home/home.templ

@@ -8,8 +8,61 @@ import "gitlab.unjx.de/flohoss/godash/components/application"
 import "gitlab.unjx.de/flohoss/godash/components/link"
 import "fmt"
 
-templ Home(title string, bookmarks *services.Bookmarks, static *services.StaticInformation, live *services.LiveInformation) {
+func getIcon(icon string) string {
-	<section class="grid gap-14">
+	switch icon {
+	case "01d":
+		return "icon-[bi--sun-fill]"
+	case "01n":
+		return "icon-[bi--moon-fill]"
+	case "02d":
+		return "icon-[bi--cloud-sun-fill]"
+	case "02n":
+		return "icon-[bi--cloud-moon-fill]"
+	case "03d", "03n":
+		return "icon-[bi--cloud-fill]"
+	case "04d", "04n":
+		return "icon-[bi--clouds-fill]"
+	case "09d", "09n":
+		return "icon-[bi--cloud-rain-heavy-fill]"
+	case "10d", "10n":
+		return "icon-[bi--cloud-drizzle-fill]"
+	case "11d", "11n":
+		return "icon-[bi--cloud-lightning-rain-fill]"
+	case "13d", "13n":
+		return "icon-[bi--cloud-snow-fill]"
+	case "50d", "50n":
+		return "icon-[bi--cloud-fog2-fill]"
+	default:
+		return ""
+	}
+}
+
+templ Home(title string, bookmarks *services.Bookmarks, static *services.StaticInformation, live *services.LiveInformation, weather *services.OpenWeather) {
+	<section class="grid gap-10">
+		<div class="flex items-center select-none">
+			<span id="watherIcon" class={ "extra-icon h-12 w-12 shrink-0 mr-4 md:w-14 md:h-14", getIcon(weather.Icon) }></span>
+			<div>
+				<div class="text-4xl md:text-4xl"><span id="weatherTemp">{ fmt.Sprintf("%0.2f",weather.Temp) }</span> { weather.Units }</div>
+				<div class="flex items-center gap-5 text-xs">
+					<div class="flex items-center">
+						<span class="extra-icon icon-[bi--chat-quote]"></span>
+						<div id="weatherDescription" class="extra-info">{ weather.Description }</div>
+					</div>
+					<div class="flex items-center">
+						<span class="extra-icon icon-[bi--droplet]"></span>
+						<div id="weatherHumidity" class="extra-info">{ fmt.Sprintf("%d %%",weather.Humidity) }</div>
+					</div>
+					<div class="hidden sm:flex items-center">
+						<span class="extra-icon icon-[bi--sunrise]"></span>
+						<div id="weatherSunrise" class="extra-info">{ weather.Sunrise }</div>
+					</div>
+					<div class="hidden sm:flex items-center">
+						<span class="extra-icon icon-[bi--sunset]"></span>
+						<div id="weatherSunset" class="extra-info">{ weather.Sunset }</div>
+					</div>
+				</div>
+			</div>
+		</div>
 		<div class="grid grid-cols-1 sm:grid-cols-2 xl:grid-cols-4 gap-3 select-none">
 			@system.System("icon-[bi--cpu]",static.CPU.Name,"",static.CPU.Threads,"systemCpuPercentage","",live.CPU)
 			@system.System("icon-[bi--nvme]",live.Disk.Value,fmt.Sprintf(" | %s", static.Disk.Total),static.Disk.Partitions,"systemDiskPercentage","systemDiskValue",live.Disk.Percentage)
@@ -45,14 +98,30 @@ templ Home(title string, bookmarks *services.Bookmarks, static *services.StaticI
 	</section>
 	<script>
 		let systemSSESource = null;
+    	let weatherSSESource = null;
 		addEventListener('beforeunload', () => {
 			systemSSESource && systemSSESource.close();
+      		weatherSSESource && weatherSSESource.close();
 		});
 		systemSSESource = new EventSource('/sse?stream=system');
 		systemSSESource.onmessage = (e) => {
 			const parsed = JSON.parse(e.data);
 			replaceSystem(parsed);
 		};
+		weatherSSESource = new EventSource('/sse?stream=weather');
+		weatherSSESource.onmessage = (e) => {
+			const parsed = JSON.parse(e.data);
+			replaceWeather(parsed);
+		};
+
+
+		// weather elements
+		const weatherIcon = document.getElementById('weatherIcon');
+		const weatherTemp = document.getElementById('weatherTemp');
+		const weatherDescription = document.getElementById('weatherDescription');
+		const weatherHumidity = document.getElementById('weatherHumidity');
+		const weatherSunrise = document.getElementById('weatherSunrise');
+		const weatherSunset = document.getElementById('weatherSunset');
 
 		// system elements
 		const systemCpuPercentage = document.getElementById('systemCpuPercentage');
@@ -66,6 +135,49 @@ templ Home(title string, bookmarks *services.Bookmarks, static *services.StaticI
 		const uptimeMinutes = document.getElementById('uptimeMinutes');
 		const uptimeSeconds = document.getElementById('uptimeSeconds');
 
+		function weatherClass(icon){
+			switch (icon) {
+			case "01d":
+				return "icon-[bi--sun-fill]"
+			case "01n":
+				return "icon-[bi--moon-fill]"
+			case "02d":
+				return "icon-[bi--cloud-sun-fill]"
+			case "02n":
+				return "icon-[bi--cloud-moon-fill]"
+			case "03d", "03n":
+				return "icon-[bi--cloud-fill]"
+			case "04d", "04n":
+				return "icon-[bi--clouds-fill]"
+			case "09d", "09n":
+				return "icon-[bi--cloud-rain-heavy-fill]"
+			case "10d", "10n":
+				return "icon-[bi--cloud-drizzle-fill]"
+			case "11d", "11n":
+				return "icon-[bi--cloud-lightning-rain-fill]"
+			case "13d", "13n":
+				return "icon-[bi--cloud-snow-fill]"
+			case "50d", "50n":
+				return "icon-[bi--cloud-fog2-fill]"
+			default:
+				return ""
+			}
+		}
+
+		function replaceWeather(parsed) {
+			weatherIcon.className.split(' ').forEach(function(className) {
+				if (className.startsWith('icon-')) {
+					weatherIcon.classList.remove(className);
+				}
+			});
+			weatherIcon.classList.add(weatherClass(parsed.icon));
+			weatherTemp.innerText = parsed.temp;
+			weatherDescription.innerText = parsed.description;
+			weatherHumidity.innerText = parsed.humidity + '%';
+			weatherSunrise.innerText = parsed.sunrise;
+			weatherSunset.innerText = parsed.sunset;
+		}
+
 		function replaceSystem(parsed) {
 			systemCpuPercentage.style = 'width:' + parsed.cpu + '%';
 			systemRamPercentage.style = 'width:' + parsed.ram.percentage + '%';
@@ -87,6 +199,7 @@ templ HomeIndex(
 	bookmarks *services.Bookmarks,
 	static *services.StaticInformation,
 	live *services.LiveInformation,
+	weather *services.OpenWeather,
 	cmp templ.Component,
 ) {
 	@layout.Base(title, version) {