horizoncd/horizon

// Copyright © 2023 Horizoncd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
package service
 
import (
    "context"
    "fmt"
 
    herrors "github.com/horizoncd/horizon/core/errors"
    "github.com/horizoncd/horizon/pkg/param/managerparam"
    usermanager "github.com/horizoncd/horizon/pkg/user/manager"
    "github.com/horizoncd/horizon/pkg/util/sets"
)
 
type Service interface {
    // CheckUsersExists check users all exists, if true, return nil
    CheckUsersExists(ctx context.Context, emails []string) error
}
 
type service struct {
    userManager usermanager.Manager
}
 
func NewService(manager *managerparam.Manager) Service {
    return &service{
        userManager: manager.UserMgr,
    }
}
 
func (s *service) CheckUsersExists(ctx context.Context, emails []string) error {
    if len(emails) == 0 {
        return nil
    }
    users, err := s.userManager.ListByEmail(ctx, emails)
    if err != nil {
        return err
    }
    userEmailSet := sets.NewString()
    for _, user := range users {
        userEmailSet.Insert(user.Email)
    }
    for _, email := range emails {
        if !userEmailSet.Has(email) {
            return herrors.NewErrNotFound(herrors.UserInDB,
                fmt.Sprintf("user with email %s not exists, please login in horizon first", email))
        }
    }
    return nil
}