package config

import (
	"fmt"
	"net"
	"strconv"

	service "go.unistack.org/cms-service"
)

type App struct {
	TLSCrt  string `flag:"name=account.tls_crt,desc='tls crt file'"`
	TLSKey  string `flag:"name=account.tls_key,desc='tls key file'"`
	Address string `flag:"name=account.address,desc='listen address',default=':0'"`
}

type Config struct {
	App     *App
	Storage *service.ConfigStorage
	Logger  *service.ConfigLogger
	Service *service.ConfigService
	Core    *service.ConfigCore
}

func NewConfig() *Config {
	return &Config{
		Service: &service.ConfigService{
			Name:    ServiceName,
			Version: ServiceVersion,
		},
	}
}

func (c *App) Validate() error {
	_, port, err := net.SplitHostPort(c.Address)
	if err != nil {
		return fmt.Errorf("invalid address: %s, err: %w", c.Address, err)
	}

	if port == "443" && (c.TLSCrt == "" || c.TLSKey == "") {
		return fmt.Errorf("use secured connection without tls crt/key")
	}

	if v, err := strconv.Atoi(port); err != nil {
		return fmt.Errorf("invalid address/port: %v", c.Address)
	} else if v < 0 || v > 65535 {
		return fmt.Errorf("invalid address/port: %v", c.Address)
	}

	return nil
}