env

README.md

@@ -1 +1,7 @@
 # humiditycalc
+
+## ENV
+MODES: CALC, WEATHER, BOTH
+BOTH is standard
+
+OPENWEATHERMAP_API_KEY is required in WEATHER and BOTH mode

go.mod

@@ -1,3 +1,5 @@
 module github.com/LeRoid-hub/humiditycalc
 
 go 1.22.2
+
+require github.com/joho/godotenv v1.5.1 // indirect

go.sum

@@ -0,0 +1,2 @@
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=

internal/weather.go

@@ -0,0 +1 @@
+package internal

main.go

@@ -1,9 +1,54 @@
 package main
 
 import (
+	"fmt"
+	"os"
+	"strings"
+
 	"github.com/LeRoid-hub/humiditycalc/server"
+	"github.com/joho/godotenv"
 )
 
 func main() {
+	env := loadEnv()
+	if val, ok := env["MODE"]; ok {
+		if strings.ToLower(val) == "both" {
+			checkEnv(env)
 			server.Run()
+		} else if strings.ToLower(val) == "weather" {
+			checkEnv(env)
+			// weather.Run()
+		} else if strings.ToLower(val) == "calc" {
+			// calc.Run()
+			server.Run()
+		}
+	}
+}
+
+func loadEnv() map[string]string {
+	var env map[string]string
+	env, err := godotenv.Read()
+	if err != nil {
+		fmt.Println("Error loading .env file: ", err)
+		os.Exit(1)
+	}
+	if len(env) == 0 {
+		fmt.Println(".env file is empty")
+		os.Exit(1)
+	}
+	return env
+}
+
+func checkEnv(env map[string]string) {
+	// Is there an API key for openweathermap?
+	if val, ok := env["OPENWEATHERMAP_API_KEY"]; ok {
+		fmt.Println(val)
+		if val == "" {
+			print("OPENWEATHERMAP_API_KEY is not set")
+			os.Exit(1)
+		}
+	} else {
+		fmt.Println("OPENWEATHERMAP_API_KEY is not set")
+		os.Exit(1)
+	}
 }

server/server.go

@@ -12,7 +12,7 @@ type result struct {
 	AbsoluteHumidity float64
 }
 
-// StartServer starts the HTTP server.
+// Run starts the HTTP server.
 func Run() {
 	tmpl := template.Must(template.ParseFiles("./web/templates/index.html"))