Initial commit — energy dashboard frontend (TimescaleDB + Vue/Chart.js)

internal/config/config.go

@@ -0,0 +1,58 @@
+package config
+
+import (
+	"os"
+	"strconv"
+)
+
+type Config struct {
+	Server ServerConfig
+	Auth   AuthConfig
+	DB     DBConfig
+}
+
+type ServerConfig struct {
+	Port int
+}
+
+type AuthConfig struct {
+	Username string
+	Password string
+	Secret   string
+}
+
+type DBConfig struct {
+	DSN string
+}
+
+func Load() *Config {
+	return &Config{
+		Server: ServerConfig{
+			Port: getEnvInt("ENERGY_PORT", 8080),
+		},
+		Auth: AuthConfig{
+			Username: getEnv("ENERGY_AUTH_USER", "admin"),
+			Password: getEnv("ENERGY_AUTH_PASSWORD", ""),
+			Secret:   getEnv("ENERGY_AUTH_SECRET", "change-me-in-production"),
+		},
+		DB: DBConfig{
+			DSN: getEnv("ENERGY_DB_DSN", "postgres://energy:changeme@localhost:5433/energy"),
+		},
+	}
+}
+
+func getEnv(key, fallback string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return fallback
+}
+
+func getEnvInt(key string, fallback int) int {
+	if v := os.Getenv(key); v != "" {
+		if i, err := strconv.Atoi(v); err == nil {
+			return i
+		}
+	}
+	return fallback
+}