package config

import "os"

type Config struct {
	ServerPort string
	SM3Salt    string
	SM4Key     []byte
}

func LoadConfig() *Config {
	port := os.Getenv("SERVER_PORT")
	if port == "" {
		port = "8080"
	}

	sm3Salt := os.Getenv("SM3_SALT")
	if sm3Salt == "" {
		sm3Salt = "default_sm3_salt"
	}

	sm4KeyStr := os.Getenv("SM4_KEY")
	var sm4Key []byte
	if sm4KeyStr != "" {
		sm4Key = []byte(sm4KeyStr)
	} else {
		sm4Key = []byte("1234567890123456")
	}

	return &Config{
		ServerPort: port,
		SM3Salt:    sm3Salt,
		SM4Key:     sm4Key,
	}
}