package serversettings

import (
	"strconv"

	"git.umbach.dev/app-idea/rest-api/modules/database"
	log "github.com/sirupsen/logrus"
)

type ServerSettings struct {
	ExpiredTime    int64
	UsernameMinLen int64
	UsernameMaxLen int64
	EmailMinLen    int64
	EmailMaxLen    int64
	PasswordMinLen int64
	PasswordMaxLen int64
}

var Settings ServerSettings

func LoadServerSettings() {
	log.Debug("load server settings from db")

	rows, err := database.DB.Raw("SELECT name, value FROM server_settings").Rows()

	if err != nil {
		log.Fatal("failed to load server settings:", err)
	}

	defer rows.Close()

	var (
		name  string
		value string
	)

	for rows.Next() {
		rows.Scan(&name, &value)

		log.Debugln("server setting:", name, value)

		switch name {
		case "expired_time":
			Settings.ExpiredTime = stringToInt(value)
		case "username_min_len":
			Settings.UsernameMinLen = stringToInt(value)
		case "username_max_len":
			Settings.UsernameMaxLen = stringToInt(value)
		case "email_min_len":
			Settings.EmailMinLen = stringToInt(value)
		case "email_max_len":
			Settings.EmailMaxLen = stringToInt(value)
		case "password_min_len":
			Settings.PasswordMinLen = stringToInt(value)
		case "password_max_len":
			Settings.PasswordMaxLen = stringToInt(value)
		}
	}
}

func stringToInt(s string) int64 {
	n, err := strconv.ParseInt(s, 0, 64)

	if err != nil {
		log.Fatalln("failed to parse server setting: ", err)
	}

	return n
}