feat: initial commit

internal/env/env.go

@@ -0,0 +1,64 @@
+package env
+
+import (
+	"os"
+	"strconv"
+	"strings"
+	"time"
+)
+
+func GetString(key, fallback string) string {
+	val, ok := os.LookupEnv(key)
+	if !ok {
+		return fallback
+	}
+	return val
+}
+
+func GetInt(key string, fallback int) int {
+	val, ok := os.LookupEnv(key)
+	if !ok {
+		return fallback
+	}
+	valAsInt, err := strconv.Atoi(val)
+	if err != nil {
+		return fallback
+	}
+	return valAsInt
+}
+
+func GetDuration(key string, fallback string) time.Duration {
+	parsedFallback, _ := time.ParseDuration(fallback)
+
+	val, ok := os.LookupEnv(key)
+	if !ok {
+		return parsedFallback
+	}
+
+	parsedVal, err := time.ParseDuration(val)
+	if err != nil {
+		return parsedFallback
+	}
+
+	return parsedVal
+}
+
+func GetBool(key string, fallback bool) bool {
+	val, ok := os.LookupEnv(key)
+	if !ok {
+		return fallback
+	}
+	valAsBool, err := strconv.ParseBool(val)
+	if err != nil {
+		return fallback
+	}
+	return valAsBool
+}
+
+func GetList(key string, fallback []string) []string {
+	val, ok := os.LookupEnv(key)
+	if !ok {
+		return fallback
+	}
+	return strings.Split(val, ",")
+}