/*
 * Copyright 2010-2011 Ning, Inc.
 *
 * Ning licenses this file to you 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 com.ning.billing.account.dao;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;

import com.ning.billing.account.api.Account;
import com.ning.billing.account.api.user.DefaultAccountChangeEvent;
import com.ning.billing.account.api.user.DefaultAccountCreationEvent;
import com.ning.billing.util.callcontext.InternalCallContext;
import com.ning.billing.util.callcontext.InternalTenantContext;
import com.ning.billing.util.entity.EntityPersistenceException;
import com.ning.billing.util.events.AccountChangeInternalEvent;
import com.ning.billing.util.svcsapi.bus.InternalBus;
import com.ning.billing.util.svcsapi.bus.InternalBus.EventBusException;

import com.google.inject.Inject;

public class MockAccountDao implements AccountDao {

    private final InternalBus eventBus;
    private final Map<UUID, Account> accounts = new ConcurrentHashMap<UUID, Account>();

    @Inject
    public MockAccountDao(final InternalBus eventBus) {
        this.eventBus = eventBus;
    }

    @Override
    public Long getRecordId(final UUID id, final InternalTenantContext context) {
        return 1L;
    }

    @Override
    public void create(final Account account, final InternalCallContext context) {
        accounts.put(account.getId(), account);

        try {
            eventBus.post(new DefaultAccountCreationEvent(account, null, 1L, 1L), context);
        } catch (final EventBusException ex) {
            throw new RuntimeException(ex);
        }
    }

    @Override
    public Account getById(final UUID id, final InternalTenantContext context) {
        return accounts.get(id);
    }

    @Override
    public List<Account> get(final InternalTenantContext context) {
        return new ArrayList<Account>(accounts.values());
    }

    @Override
    public void test(final InternalTenantContext context) {
    }

    @Override
    public Account getAccountByKey(final String externalKey, final InternalTenantContext context) {
        for (final Account account : accounts.values()) {
            if (externalKey.equals(account.getExternalKey())) {
                return account;
            }
        }
        return null;
    }

    @Override
    public UUID getIdFromKey(final String externalKey, final InternalTenantContext context) {
        final Account account = getAccountByKey(externalKey, context);
        return account == null ? null : account.getId();
    }

    @Override
    public void update(final Account account, final InternalCallContext context) {
        final Account currentAccount = accounts.put(account.getId(), account);

        final AccountChangeInternalEvent changeEvent = new DefaultAccountChangeEvent(account.getId(), null, currentAccount, account, 1L, 1L);
        if (changeEvent.hasChanges()) {
            try {
                eventBus.post(changeEvent, context);
            } catch (final EventBusException ex) {
                throw new RuntimeException(ex);
            }
        }
    }

    @Override
    public void updatePaymentMethod(final UUID accountId, final UUID paymentMethodId, final InternalCallContext context) throws EntityPersistenceException {
    }

    @Override
    public Account getByRecordId(final Long recordId, final InternalTenantContext context) {
        return null;
    }
}
