package config

import (
	"github.com/sirupsen/logrus"
	"github.com/spf13/pflag"
	"github.com/spf13/viper"
)

type smtp struct {
	Enabled  bool
	Host     string
	Port     uint16
	Username string
	Password string
	From     string
}

var SMTP smtp = smtp{}
var BaseURL string = "localhost"
var Debug bool = false

func InitConfig() error {
	viper.SetDefault("host", "[::]")
	viper.SetDefault("port", 8080)
	viper.SetDefault("db_path", "bin.db")
	viper.SetDefault("smtp.enabled", false)
	viper.SetDefault("user.registration_enabled", false)
	viper.SetDefault("base_url", "localhost")
	viper.SetDefault("debug", false)

	viper.SetConfigName("config")
	viper.SetConfigType("toml")
	viper.AddConfigPath("/etc/bin")
	viper.AddConfigPath("$HOME/.config/bin")
	viper.AddConfigPath("$XDG_CONFIG_HOME/bin")
	viper.AddConfigPath(".")

	if err := viper.ReadInConfig(); err != nil {
		if _, ok := err.(viper.ConfigFileNotFoundError); ok {
			logrus.Warnln("No config file found.")
		} else {
			logrus.WithError(err).Errorln("Config file found but could not read it.")
		}
	}

	pflag.BoolP("debug", "D", false, "toggle debug mode")
	pflag.Parse()

	viper.BindPFlags(pflag.CommandLine)

	Debug = viper.GetBool("debug")

	SMTP = smtp{
		Enabled:  viper.GetBool("smtp.enabled"),
		Host:     viper.GetString("smtp.host"),
		Port:     viper.GetUint16("smtp.port"),
		Username: viper.GetString("smtp.username"),
		Password: viper.GetString("smtp.password"),
		From:     viper.GetString("smtp.from"),
	}

	BaseURL = viper.GetString("base_url")

	return nil
}