/**
 * =============================================================================
 *
 * ORCID (R) Open Source
 * http://orcid.org
 *
 * Copyright (c) 2012-2014 ORCID, Inc.
 * Licensed under an MIT-Style License (MIT)
 * http://orcid.org/open-source-license
 *
 * This copyright and license information (including a link to the full license)
 * shall be included in its entirety in all copies or substantial portion of
 * the software.
 *
 * =============================================================================
 */
package org.orcid.core.cli;

import java.util.Date;
import java.util.List;

import org.orcid.core.manager.ClientDetailsManager;
import org.orcid.jaxb.model.clientgroup.ClientType;
import org.orcid.jaxb.model.message.ScopePathType;
import org.orcid.persistence.jpa.entities.ClientDetailsEntity;
import org.orcid.persistence.jpa.entities.ClientScopeEntity;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.support.TransactionCallbackWithoutResult;
import org.springframework.transaction.support.TransactionTemplate;

/**
 * This CLI will be in charge of inserting the /read-public scope to all non
 * institution client that already exists
 * 
 * @author Angel Montenegro
 * */
public class AddReadPublicScopeToNoneInstitutionMembers {

    private ClientDetailsManager clientDetailsManager;
    private TransactionTemplate transactionTemplate;

    private int clientsUpdated = 0;

    /**
     * @param args
     */
    public static void main(String[] args) {
        AddReadPublicScopeToNoneInstitutionMembers mine = new AddReadPublicScopeToNoneInstitutionMembers();
        mine.execute();

    }

    @SuppressWarnings("resource")
    private void init() {
        ApplicationContext context = new ClassPathXmlApplicationContext("orcid-core-context.xml");
        clientDetailsManager = (ClientDetailsManager) context.getBean("clientDetailsManager");
        transactionTemplate = (TransactionTemplate) context.getBean("transactionTemplate");
    }

    private void processClients() {
        transactionTemplate.execute(new TransactionCallbackWithoutResult() {
            @Override
            protected void doInTransactionWithoutResult(TransactionStatus status) {
                List<ClientDetailsEntity> clients = clientDetailsManager.getAll();
                for (ClientDetailsEntity client : clients) {
                    // Only updater clients should be updated
                    if (client.getClientType().equals(ClientType.PREMIUM_UPDATER) || client.getClientType().equals(ClientType.UPDATER)) {
                        ClientDetailsEntity clientDetails = clientDetailsManager.findByClientId(client.getId());
                        updateScopes(clientDetails);
                    }
                }
            }
        });
    }

    private void updateScopes(ClientDetailsEntity clientDetails) {
        String readPublicScope = ScopePathType.READ_PUBLIC.value();
        boolean alreadyHaveReadPublicScope = false;
        for (ClientScopeEntity scope : clientDetails.getClientScopes()) {
            if (readPublicScope.equals(scope.getScopeType())) {
                alreadyHaveReadPublicScope = true;
                break;
            }
        }

        if (!alreadyHaveReadPublicScope) {
            ClientScopeEntity clientScope = new ClientScopeEntity();
            clientScope.setClientDetailsEntity(clientDetails);
            clientScope.setScopeType(ScopePathType.READ_PUBLIC.value());
            clientScope.setDateCreated(new Date());
            clientScope.setLastModified(new Date());
            clientDetails.getClientScopes().add(clientScope);
            clientDetailsManager.merge(clientDetails);
            clientsUpdated += 1;
            System.out.println("Client " + clientDetails.getId() + " has been updated");
        } else {
            System.out.println("Client " + clientDetails.getId() + " already have the /read-public scope");
        }
    }

    private void finish() {
        System.out.println("Number of clients updated:" + clientsUpdated);
        System.exit(0);
    }

    public void execute() {
        init();
        processClients();
        finish();
    }

}