/*
 * Copyright 2010-2013 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.beatrix.integration;

import java.util.UUID;
import java.util.concurrent.Callable;
import java.util.concurrent.atomic.AtomicInteger;

import org.joda.time.DateTime;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

import com.ning.billing.account.api.Account;
import com.ning.billing.api.TestApiListener.NextEvent;
import com.ning.billing.catalog.api.BillingPeriod;
import com.ning.billing.catalog.api.PlanPhaseSpecifier;
import com.ning.billing.catalog.api.PriceListSet;
import com.ning.billing.catalog.api.ProductCategory;
import com.ning.billing.subscription.api.user.SubscriptionData;
import com.ning.billing.notification.plugin.api.ExtBusEvent;
import com.ning.billing.subscription.api.user.SubscriptionBundle;

import com.google.common.eventbus.Subscribe;

import static com.jayway.awaitility.Awaitility.await;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.testng.Assert.assertNotNull;
import static org.testng.Assert.assertTrue;

public class TestPublicBus extends TestIntegrationBase {

    private PublicListener publicListener;


    private AtomicInteger externalBusCount;

    public class PublicListener {

        @Subscribe
        public void handleExternalEvents(final ExtBusEvent event) {
            log.info("GOT EXT EVENT " + event);
            externalBusCount.incrementAndGet();

        }
    }

    @Override
    @BeforeMethod(groups = "slow")
    public void beforeMethod() throws Exception {
        super.beforeMethod();

        publicListener = new PublicListener();

        log.warn("\n");
        log.warn("RESET TEST FRAMEWORK\n\n");

        clock.resetDeltaFromReality();
        resetTestListenerStatus();
        busHandler.reset();

        // Start services
        lifecycle.fireStartupSequencePriorEventRegistration();
        busService.getBus().register(busHandler);
        externalBus.register(publicListener);
        lifecycle.fireStartupSequencePostEventRegistration();

        this.externalBusCount = new AtomicInteger(0);
    }


    @Test(groups = "{slow}")
    public void testSimple() throws Exception {

        final DateTime initialDate = new DateTime(2012, 2, 1, 0, 3, 42, 0, testTimeZone);
        final int billingDay = 2;

        log.info("Beginning test with BCD of " + billingDay);
        final Account account = createAccountWithNonOsgiPaymentMethod(getAccountData(billingDay));
        final UUID accountId = account.getId();
        assertNotNull(account);

        // set clock to the initial start date
        clock.setDeltaFromReality(initialDate.getMillis() - clock.getUTCNow().getMillis());
        final SubscriptionBundle bundle = entitlementUserApi.createBundleForAccount(account.getId(), "whatever2", callContext);

        String productName = "Shotgun";
        BillingPeriod term = BillingPeriod.MONTHLY;
        String planSetName = PriceListSet.DEFAULT_PRICELIST_NAME;

        //
        // CREATE SUBSCRIPTION AND EXPECT BOTH EVENTS: NextEvent.CREATE NextEvent.INVOICE
        //
        busHandler.pushExpectedEvent(NextEvent.CREATE);
        busHandler.pushExpectedEvent(NextEvent.INVOICE);

        SubscriptionData subscription = subscriptionDataFromSubscription(entitlementUserApi.createSubscription(bundle.getId(),
                                                                                                               new PlanPhaseSpecifier(productName, ProductCategory.BASE, term, planSetName, null), null, callContext));

        assertNotNull(subscription);
        assertTrue(busHandler.isCompleted(DELAY));

        await().atMost(10, SECONDS).until(new Callable<Boolean>() {
            @Override
            public Boolean call() throws Exception {
                // expecting ACCOUNT_CREATION, ACCOUNT_CHANGE, SUBSCRIPTION_CREATION, INVOICE_CREATION
                return externalBusCount.get() == 4;
            }
        });


    }


}
