package config

import (
	"fmt"
	"strconv"
)

// ServerConfig 服务器配置
type ServerConfig struct {
	Port int    `mapstructure:"port"`
	Host string `mapstructure:"host"`
	Env  string `mapstructure:"env"` // development, production, testing
}

// Validate 验证服务器配置
func (c *ServerConfig) Validate() error {
	if c.Port <= 0 {
		return fmt.Errorf("server port must be positive")
	}

	if c.Host == "" {
		c.Host = "0.0.0.0"
	}

	if c.Env == "" {
		c.Env = "development"
	}

	return nil
}

// Address 返回服务器地址
func (c *ServerConfig) Address() string {
	return c.Host + ":" + strconv.Itoa(c.Port)
}