fix db

internal/services/user/user_service.go

@@ -2,6 +2,8 @@ package user
 
 import (
 	"context"
+	"crypto/md5"
+	"encoding/hex"
 	"errors"
 	"fmt"
 
@@ -13,6 +15,7 @@ import (
 type UserEntity struct {
 	Id       int
 	Username string
+	Password string
 }
 
 type UsernameAlreadyExistsErr struct{}
@@ -34,9 +37,10 @@ func NewUserService(
 }
 
 func (s *UserService) AddUser(ctx context.Context, user *UserEntity) (*UserEntity, error) {
-	query := `INSERT INTO users (username) VALUES (@username) RETURNING id`
+	query := `INSERT INTO users (username, password) VALUES (@username, @password) RETURNING id`
 	args := pgx.NamedArgs{
 		"username": user.Username,
+		"password": hashPassword(user.Username, user.Password, "crab"),
 	}
 	if err := s.db.QueryRow(ctx, query, args).Scan(&user.Id); err != nil {
 		var pgErr *pgconn.PgError
@@ -49,3 +53,12 @@ func (s *UserService) AddUser(ctx context.Context, user *UserEntity) (*UserEntit
 	}
 	return user, nil
 }
+
+func hashPassword(username string, password string, salt string) string {
+	return getMD5Hash(username + password + salt)
+}
+
+func getMD5Hash(text string) string {
+	hash := md5.Sum([]byte(text))
+	return hex.EncodeToString(hash[:])
+}