package repository
import (
"encoding/json"
"fmt"
normalizer "github.com/dimuska139/go-email-normalizer/v2"
"gitrepo.ru/neonxp/gorum/models"
"go.etcd.io/bbolt"
"golang.org/x/crypto/bcrypt"
)
type User struct {
db *bbolt.DB
}
func NewUser(db *bbolt.DB) *User {
return &User{
db: db,
}
}
func (t *User) Init() error {
return t.db.Update(func(tx *bbolt.Tx) error {
_, err := tx.CreateBucketIfNotExists([]byte("users"))
return err
})
}
func (u *User) Create(email, password, username string, role models.UserRole) error {
if len(password) < 8 {
return models.ErrInvalidPassword
}
hpassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil {
return models.ErrInvalidPassword
}
email = normalizer.NewNormalizer().Normalize(email)
user := &models.User{
Email: email,
Password: string(hpassword),
Username: username,
Role: role,
}
u.db.Update(func(tx *bbolt.Tx) error {
bucket, err := tx.CreateBucketIfNotExists([]byte("users"))
if err != nil {
return err
}
ub := bucket.Get([]byte(email))
if ub != nil {
return models.ErrUserAlreadyExists
}
ub, err = json.Marshal(user)
if err != nil {
return err
}
return bucket.Put([]byte(email), ub)
})
return nil
}
func (u *User) Login(email, password string) (*models.User, error) {
user := new(models.User)
email = normalizer.NewNormalizer().Normalize(email)
return user, u.db.View(func(tx *bbolt.Tx) error {
ub := tx.Bucket([]byte("users")).Get([]byte(email))
if ub == nil {
return models.ErrInvalidUserOrPassword
}
if err := json.Unmarshal(ub, user); err != nil {
return err
}
if err := bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password)); err != nil {
return fmt.Errorf("invalid password: %w", models.ErrInvalidUserOrPassword)
}
return nil
})
}
func (u *User) Get(email string) (*models.User, error) {
user := new(models.User)
email = normalizer.NewNormalizer().Normalize(email)
return user, u.db.View(func(tx *bbolt.Tx) error {
ub := tx.Bucket([]byte("users")).Get([]byte(email))
if ub == nil {
return models.ErrInvalidUserOrPassword
}
return json.Unmarshal(ub, user)
})
}
func (u *User) List() ([]*models.User, error) {
ret := make([]*models.User, 0)
return ret, u.db.View(func(tx *bbolt.Tx) error {
bucket := tx.Bucket([]byte("users"))
return bucket.ForEach(func(k, v []byte) error {
u := new(models.User)
if err := json.Unmarshal(v, u); err != nil {
return err
}
ret = append(ret, u)
return nil
})
})
}
