Initial commit: VPN panel on Go, PostgreSQL 17, Docker, Xray-core

internal/config/config.go

@@ -0,0 +1,40 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+type Config struct {
+	AppPort     int
+	AppDomain   string
+	DatabaseURL string
+	SecretKey   string
+	Installed   bool
+}
+
+func Load() (*Config, error) {
+	port, _ := strconv.Atoi(getEnv("APP_PORT", "8080"))
+	cfg := &Config{
+		AppPort:     port,
+		AppDomain:   getEnv("APP_DOMAIN", "localhost"),
+		DatabaseURL: os.Getenv("DATABASE_URL"),
+		SecretKey:   getEnv("SECRET_KEY", ""),
+		Installed:   getEnv("INSTALLED", "false") == "true",
+	}
+	if cfg.DatabaseURL == "" {
+		return nil, fmt.Errorf("DATABASE_URL не задан")
+	}
+	if cfg.SecretKey == "" {
+		return nil, fmt.Errorf("SECRET_KEY не задан")
+	}
+	return cfg, nil
+}
+
+func getEnv(key, fallback string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return fallback
+}