package helpers

import (
	"crypto/rand"
	"encoding/hex"
	"time"

	"git.readonly.ch/bouzoure/pop-camarades/models"
	"github.com/google/uuid"
)

func CreateSavedSession(userid uint) (models.UserSavedSession, string, error) {
	var savedSession models.UserSavedSession

	db, err := GetDatabase()
	if err != nil {
		return savedSession, "", err
	}

	secret := GenerateSecureToken(30)
	hashedSecret, err := HashPassword(secret)
	if err != nil {
		return savedSession, "", err
	}

	now := time.Now()
	expiration := now.AddDate(0, 0, 30)

	savedSession.UserID = userid
	savedSession.UUID = uuid.NewString()
	savedSession.Secret = hashedSecret
	savedSession.Expiration = expiration

	db.Create(&savedSession)

	return savedSession, secret, nil
}

func RemoveSavedSession(uuid string) error {
	db, err := GetDatabase()
	if err != nil {
		return err
	}

	db.Delete(&models.UserSavedSession{}, "uuid = ?", uuid)

	return nil
}

func GenerateSecureToken(length int) string {
	b := make([]byte, length)
	if _, err := rand.Read(b); err != nil {
		return ""
	}
	return hex.EncodeToString(b)
}