package main

import (
	// External
	"gopkg.in/yaml.v3"

	// Standard
	"errors"
	"io/ioutil"
)


type Config struct {
	Websocket struct {
		Domains []string
	}

	Database struct {
		Host     string
		Port     int
		Name     string
		Username string
		Password string
	}

	Application struct {
		StaticDir string
	}

	Session struct {
		DaysValid int
	}
}

func ConfigRead(filename string) (config Config, err error) {
	var rawConfigData []byte
	rawConfigData, err = ioutil.ReadFile(filename)
	if err != nil { return }

	err = yaml.Unmarshal(rawConfigData, &config)
	if err != nil {
		return
	}

	if config.Session.DaysValid == 0 {
		err = errors.New("Configuration: session.daysvalid needs to be higher than 0.")
	}

	return
}