add refresh-password route

internal/app/server.go

@@ -28,8 +28,8 @@ func (s *server) Echo(_ context.Context, req *proto.EchoReq) (*proto.EchoRsp, er
 	return &proto.EchoRsp{Text: req.Text}, nil
 }
 
-func (s *server) Signup(ctx context.Context, signupReq *proto.SignupReq) (*proto.SignupRsp, error) {
-	err := s.usersService.AddUser(ctx, signupReq.Username, signupReq.Email)
+func (s *server) Signup(ctx context.Context, req *proto.SignupReq) (*proto.SignupRsp, error) {
+	err := s.usersService.AddUser(ctx, req.Username, req.Email)
 	if err != nil {
 		return &proto.SignupRsp{
 			Error: err.Error(),
@@ -37,3 +37,13 @@ func (s *server) Signup(ctx context.Context, signupReq *proto.SignupReq) (*proto
 	}
 	return &proto.SignupRsp{}, nil
 }
+
+func (s *server) RefreshPassword(ctx context.Context, req *proto.RefreshPasswordReq) (*proto.RefreshPasswordRsp, error) {
+	err := s.usersService.RefreshPassword(ctx, req.Email)
+	if err != nil {
+		return &proto.RefreshPasswordRsp{
+			Error: err.Error(),
+		}, nil
+	}
+	return &proto.RefreshPasswordRsp{}, nil
+}

internal/repos/user.go

@@ -0,0 +1,6 @@
+package repos
+
+type User struct {
+	Username string
+	Email    string
+}

internal/repos/users_repo/repo.go

@@ -7,6 +7,10 @@ import (
 	"github.com/jackc/pgx/v5/pgxpool"
 )
 
+var (
+	ErrUserNotFound = errors.New("Пользователь не найден")
+)
+
 type UsersRepo struct {
 	pool *pgxpool.Pool
 }
@@ -21,7 +25,7 @@ func (s *UsersRepo) AddUser(
 	ctx context.Context,
 	username string,
 	email string,
-	passwoedHash string,
+	passwordHash string,
 	role string,
 ) error {
 	tag, err := s.pool.Exec(
@@ -34,7 +38,7 @@ func (s *UsersRepo) AddUser(
 		)`,
 		username,
 		email,
-		passwoedHash,
+		passwordHash,
 		role,
 
 		username,
@@ -48,3 +52,26 @@ func (s *UsersRepo) AddUser(
 	}
 	return nil
 }
+
+func (s *UsersRepo) UpdateUserPassword(
+	ctx context.Context,
+	email string,
+	passwordHash string,
+) error {
+	tag, err := s.pool.Exec(
+		ctx,
+		`UPDATE users
+		SET password_hash = $1
+		WHERE email = $2`,
+		passwordHash,
+		email,
+	)
+	if err != nil {
+		return err
+	}
+	if tag.RowsAffected() == 0 {
+		return ErrUserNotFound
+	}
+
+	return nil
+}

internal/services/users_service/service.go

@@ -60,3 +60,34 @@ func (s *UsersService) AddUser(
 
 	return err
 }
+
+func (s *UsersService) RefreshPassword(
+	ctx context.Context,
+	email string,
+) error {
+	password, err := s.passwordGenerator.Generate()
+	if err != nil {
+		return err
+	}
+	hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return err
+	}
+
+	err = s.usersRepo.UpdateUserPassword(
+		ctx,
+		email,
+		string(hashedPassword),
+	)
+	if err != nil {
+		return err
+	}
+
+	err = s.emailSender.Send(ctx, email_sender.Message{
+		To:      email,
+		Subject: "Приветствую тебя, детектив!",
+		Body:    fmt.Sprintf("Вот твой новый пароль для входа в систему, не теряй: %s", password),
+	})
+
+	return err
+}