package config

import (
	"os"
	"strconv"
)

type Config struct {
	DBHost        string
	DBPort        int
	DBUser        string
	DBPassword    string
	DBName        string
	JWTSecret     string
	RedisHost     string
	RedisPort     int
	RedisPassword string
}

var AppConfig Config

func Init() {
	AppConfig = Config{
		DBHost:        getEnv("DB_HOST", "localhost"),
		DBPort:        getEnvAsInt("DB_PORT", 3306),
		DBUser:        getEnv("DB_USER", "root"),
		DBPassword:    getEnv("DB_PASSWORD", ""),
		DBName:        getEnv("DB_NAME", "rbac"),
		JWTSecret:     getEnv("JWT_SECRET", "secret"),
		RedisHost:     getEnv("REDIS_HOST", "localhost"),
		RedisPort:     getEnvAsInt("REDIS_PORT", 6379),
		RedisPassword: getEnv("REDIS_PASSWORD", ""),
	}
}

func getEnv(key, defaultValue string) string {
	if value, exists := os.LookupEnv(key); exists {
		return value
	}
	return defaultValue
}

func getEnvAsInt(key string, defaultValue int) int {
	valueStr := getEnv(key, "")
	if value, err := strconv.Atoi(valueStr); err == nil {
		return value
	}
	return defaultValue
}