/*
 * 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 org.killbill.billing.entitlement.api;

import java.util.Iterator;
import java.util.List;
import java.util.UUID;

import org.joda.time.DateTime;
import org.joda.time.LocalDate;
import org.killbill.billing.ErrorCode;
import org.killbill.billing.OrderingType;
import org.killbill.billing.account.api.Account;
import org.killbill.billing.account.api.AccountApiException;
import org.killbill.billing.api.TestApiListener.NextEvent;
import org.killbill.billing.catalog.api.BillingActionPolicy;
import org.killbill.billing.catalog.api.BillingPeriod;
import org.killbill.billing.catalog.api.PlanPhaseSpecifier;
import org.killbill.billing.catalog.api.PriceListSet;
import org.killbill.billing.catalog.api.ProductCategory;
import org.killbill.billing.entitlement.EntitlementService;
import org.killbill.billing.entitlement.EntitlementTestSuiteWithEmbeddedDB;
import org.killbill.billing.entitlement.api.Entitlement.EntitlementActionPolicy;
import org.killbill.billing.entitlement.api.Entitlement.EntitlementState;
import org.killbill.billing.junction.DefaultBlockingState;
import org.killbill.billing.payment.api.PluginProperty;
import org.killbill.billing.util.api.AuditLevel;
import org.killbill.billing.util.audit.AuditLog;
import org.killbill.billing.util.audit.ChangeType;
import org.testng.Assert;
import org.testng.annotations.Test;

import com.google.common.collect.ImmutableList;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNull;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;

public class TestDefaultSubscriptionApi extends EntitlementTestSuiteWithEmbeddedDB {

    @Test(groups = "slow", description = "Verify blocking states are exposed in SubscriptionBundle")
    public void testBlockingStatesInTimelineApi() throws Exception {
        final LocalDate initialDate = new LocalDate(2013, 8, 7);
        clock.setDay(initialDate);

        final Account account = createAccount(getAccountData(7));
        final PlanPhaseSpecifier spec = new PlanPhaseSpecifier("Shotgun", BillingPeriod.MONTHLY, PriceListSet.DEFAULT_PRICELIST_NAME, null);
        testListener.pushExpectedEvents(NextEvent.CREATE, NextEvent.BLOCK);
        final Entitlement entitlement1 = entitlementApi.createBaseEntitlement(account.getId(), spec, UUID.randomUUID().toString(), null, null, null, false, ImmutableList.<PluginProperty>of(), callContext);
        // Sleep 1 sec so created date are apart from each other and ordering in the bundle does not default on the UUID which is random.
        try {
            Thread.sleep(1000);
        } catch (InterruptedException ignore) {
        }
        testListener.pushExpectedEvents(NextEvent.CREATE, NextEvent.BLOCK);
        final Entitlement entitlement2 = entitlementApi.createBaseEntitlement(account.getId(), spec, UUID.randomUUID().toString(), null, null, null, false, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        testListener.pushExpectedEvents(NextEvent.BLOCK);
        entitlementUtils.setBlockingStateAndPostBlockingTransitionEvent(new DefaultBlockingState(account.getId(), BlockingStateType.ACCOUNT, "stateName", "service", false, false, false, clock.getUTCNow()),
                                                                        internalCallContextFactory.createInternalCallContext(account.getId(), callContext));
        assertListenerStatus();

        final List<SubscriptionBundle> bundles = subscriptionApi.getSubscriptionBundlesForAccountId(account.getId(), callContext);
        Assert.assertEquals(bundles.size(), 2);

        // This will test the ordering as well
        subscriptionBundleChecker(bundles, initialDate, entitlement1, 0);
        subscriptionBundleChecker(bundles, initialDate, entitlement2, 1);
    }

    private void subscriptionBundleChecker(final List<SubscriptionBundle> bundles, final LocalDate initialDate, final Entitlement entitlement, final int idx) {
        Assert.assertEquals(bundles.get(idx).getId(), entitlement.getBundleId());
        Assert.assertEquals(bundles.get(idx).getSubscriptions().size(), 1);
        Assert.assertEquals(bundles.get(idx).getSubscriptions().get(0).getId(), entitlement.getId());
        Assert.assertEquals(bundles.get(idx).getTimeline().getSubscriptionEvents().size(), 4);
        Assert.assertEquals(bundles.get(idx).getTimeline().getSubscriptionEvents().get(0).getEffectiveDate(), initialDate);
        Assert.assertEquals(bundles.get(idx).getTimeline().getSubscriptionEvents().get(0).getSubscriptionEventType(), SubscriptionEventType.START_ENTITLEMENT);
        Assert.assertEquals(bundles.get(idx).getTimeline().getSubscriptionEvents().get(1).getEffectiveDate(), initialDate);
        Assert.assertEquals(bundles.get(idx).getTimeline().getSubscriptionEvents().get(1).getSubscriptionEventType(), SubscriptionEventType.START_BILLING);
        Assert.assertEquals(bundles.get(idx).getTimeline().getSubscriptionEvents().get(2).getEffectiveDate(), initialDate);
        Assert.assertEquals(bundles.get(idx).getTimeline().getSubscriptionEvents().get(2).getSubscriptionEventType(), SubscriptionEventType.SERVICE_STATE_CHANGE);
        Assert.assertEquals(bundles.get(idx).getTimeline().getSubscriptionEvents().get(2).getServiceName(), "service");
        Assert.assertEquals(bundles.get(idx).getTimeline().getSubscriptionEvents().get(2).getServiceStateName(), "stateName");
        Assert.assertEquals(bundles.get(idx).getTimeline().getSubscriptionEvents().get(3).getEffectiveDate(), new LocalDate(2013, 9, 6));
        Assert.assertEquals(bundles.get(idx).getTimeline().getSubscriptionEvents().get(3).getSubscriptionEventType(), SubscriptionEventType.PHASE);
    }

    @Test(groups = "slow")
    public void testWithMultipleBundle() throws AccountApiException, SubscriptionApiException, EntitlementApiException {
        final String externalKey = "fooXXX";

        final LocalDate initialDate = new LocalDate(2013, 8, 7);
        clock.setDay(initialDate);

        final Account account = createAccount(getAccountData(7));

        final PlanPhaseSpecifier spec = new PlanPhaseSpecifier("Shotgun", BillingPeriod.MONTHLY, PriceListSet.DEFAULT_PRICELIST_NAME, null);

        // Create entitlement and check each field
        testListener.pushExpectedEvents(NextEvent.CREATE, NextEvent.BLOCK);
        final Entitlement entitlement = entitlementApi.createBaseEntitlement(account.getId(), spec, externalKey, null, null, null, false, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();
        assertEquals(entitlement.getAccountId(), account.getId());
        assertEquals(entitlement.getExternalKey(), externalKey);

        assertEquals(entitlement.getEffectiveStartDate(), initialDate);
        assertNull(entitlement.getEffectiveEndDate());

        final List<SubscriptionBundle> bundles = subscriptionApi.getSubscriptionBundlesForExternalKey(externalKey, callContext);
        assertEquals(bundles.size(), 1);

        final SubscriptionBundle activeBundle = subscriptionApi.getActiveSubscriptionBundleForExternalKey(externalKey, callContext);
        assertEquals(activeBundle.getId(), entitlement.getBundleId());

        // Cancel entitlement
        clock.addDays(3);
        testListener.pushExpectedEvents(NextEvent.CANCEL, NextEvent.BLOCK);
        entitlement.cancelEntitlementWithDate(new LocalDate(clock.getUTCNow(), account.getTimeZone()), true, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        try {
            subscriptionApi.getActiveSubscriptionBundleForExternalKey(externalKey, callContext);
            Assert.fail("Expected getActiveSubscriptionBundleForExternalKey to fail after cancellation");
        } catch (SubscriptionApiException e) {
            assertEquals(e.getCode(), ErrorCode.SUB_GET_INVALID_BUNDLE_KEY.getCode());

        }

        clock.addDays(1);
        // Re-create a new bundle with same externalKey
        final PlanPhaseSpecifier spec2 = new PlanPhaseSpecifier("Pistol", BillingPeriod.MONTHLY, PriceListSet.DEFAULT_PRICELIST_NAME, null);

        // Create entitlement and check each field
        testListener.pushExpectedEvents(NextEvent.CREATE, NextEvent.BLOCK);
        final Entitlement entitlement2 = entitlementApi.createBaseEntitlement(account.getId(), spec2, externalKey, null, null, null, false, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();
        assertEquals(entitlement2.getAccountId(), account.getId());
        assertEquals(entitlement2.getExternalKey(), externalKey);

        final List<SubscriptionBundle> bundles2 = subscriptionApi.getSubscriptionBundlesForExternalKey(externalKey, callContext);
        assertEquals(bundles2.size(), 2);

        SubscriptionBundle firstbundle = bundles2.get(0);
        assertEquals(firstbundle.getSubscriptions().size(), 1);
        assertEquals(firstbundle.getSubscriptions().get(0).getEffectiveStartDate(), new LocalDate(2013, 8, 7));
        assertEquals(firstbundle.getSubscriptions().get(0).getBillingStartDate(), new LocalDate(2013, 8, 7));
        assertEquals(firstbundle.getSubscriptions().get(0).getEffectiveEndDate(), new LocalDate(2013, 8, 10));
        assertEquals(firstbundle.getSubscriptions().get(0).getBillingEndDate(), new LocalDate(2013, 8, 10));

        SubscriptionBundle secondbundle = bundles2.get(1);
        assertEquals(secondbundle.getSubscriptions().size(), 1);
        assertEquals(secondbundle.getSubscriptions().get(0).getEffectiveStartDate(), new LocalDate(2013, 8, 11));
        assertEquals(secondbundle.getSubscriptions().get(0).getBillingStartDate(), new LocalDate(2013, 8, 11));
        assertNull(secondbundle.getSubscriptions().get(0).getEffectiveEndDate());
        assertNull(secondbundle.getSubscriptions().get(0).getBillingEndDate());
        assertEquals(secondbundle.getOriginalCreatedDate().compareTo(firstbundle.getCreatedDate()), 0);

        final List<SubscriptionBundle> bundles2Again = subscriptionApi.getSubscriptionBundlesForAccountIdAndExternalKey(account.getId(), externalKey, callContext);
        assertEquals(bundles2Again.size(), 2);

        clock.addDays(3);

        final Account account2 = createAccount(getAccountData(7));

        testListener.pushExpectedEvents(NextEvent.TRANSFER, NextEvent.BLOCK, NextEvent.CANCEL, NextEvent.BLOCK);
        entitlementApi.transferEntitlements(account.getId(), account2.getId(), externalKey, new LocalDate(clock.getUTCNow(), account.getTimeZone()), ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        final List<SubscriptionBundle> bundles3 = subscriptionApi.getSubscriptionBundlesForExternalKey(externalKey, callContext);
        assertEquals(bundles3.size(), 3);

        firstbundle = bundles3.get(0);
        assertEquals(firstbundle.getSubscriptions().size(), 1);
        assertEquals(firstbundle.getSubscriptions().get(0).getEffectiveStartDate(), new LocalDate(2013, 8, 7));
        assertEquals(firstbundle.getSubscriptions().get(0).getBillingStartDate(), new LocalDate(2013, 8, 7));
        assertEquals(firstbundle.getSubscriptions().get(0).getEffectiveEndDate(), new LocalDate(2013, 8, 10));
        assertEquals(firstbundle.getSubscriptions().get(0).getBillingEndDate(), new LocalDate(2013, 8, 10));

        secondbundle = bundles3.get(1);
        assertEquals(secondbundle.getSubscriptions().size(), 1);
        assertEquals(secondbundle.getSubscriptions().get(0).getEffectiveStartDate(), new LocalDate(2013, 8, 11));
        assertEquals(secondbundle.getSubscriptions().get(0).getBillingStartDate(), new LocalDate(2013, 8, 11));
        assertEquals(secondbundle.getSubscriptions().get(0).getEffectiveEndDate(), new LocalDate(2013, 8, 14));
        assertEquals(secondbundle.getSubscriptions().get(0).getBillingEndDate(), new LocalDate(2013, 8, 14));
        assertEquals(secondbundle.getOriginalCreatedDate().compareTo(firstbundle.getCreatedDate()), 0);

        SubscriptionBundle thirdBundle = bundles3.get(2);
        assertEquals(thirdBundle.getSubscriptions().size(), 1);
        assertEquals(thirdBundle.getSubscriptions().get(0).getEffectiveStartDate(), new LocalDate(2013, 8, 14));
        assertEquals(thirdBundle.getSubscriptions().get(0).getBillingStartDate(), new LocalDate(2013, 8, 14));
        assertNull(thirdBundle.getSubscriptions().get(0).getEffectiveEndDate());
        assertNull(thirdBundle.getSubscriptions().get(0).getBillingEndDate());
        assertEquals(thirdBundle.getOriginalCreatedDate().compareTo(firstbundle.getCreatedDate()), 0);
    }

    @Test(groups = "slow", description = "Test for https://github.com/killbill/killbill/issues/136")
    public void testAuditLogsForEntitlementAndSubscriptionBaseObjects() throws AccountApiException, EntitlementApiException, SubscriptionApiException {
        final LocalDate initialDate = new LocalDate(2013, 8, 7);
        clock.setDay(initialDate);

        final Account account = createAccount(getAccountData(7));

        // Create entitlement
        testListener.pushExpectedEvents(NextEvent.CREATE, NextEvent.BLOCK);
        final PlanPhaseSpecifier spec = new PlanPhaseSpecifier("Shotgun", BillingPeriod.ANNUAL, PriceListSet.DEFAULT_PRICELIST_NAME, null);
        final Entitlement baseEntitlement = entitlementApi.createBaseEntitlement(account.getId(), spec, account.getExternalKey(), null, null, null, false, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        // Get the phase event out of the way
        testListener.pushExpectedEvents(NextEvent.PHASE);
        clock.setDay(new LocalDate(2013, 9, 7));
        assertListenerStatus();

        final LocalDate pauseDate = new LocalDate(2013, 9, 17);
        entitlementApi.pause(baseEntitlement.getBundleId(), pauseDate, ImmutableList.<PluginProperty>of(), callContext);

        testListener.pushExpectedEvents(NextEvent.BLOCK);
        clock.setDay(pauseDate);
        assertListenerStatus();

        final LocalDate resumeDate = new LocalDate(2013, 12, 24);
        entitlementApi.resume(baseEntitlement.getBundleId(), resumeDate, ImmutableList.<PluginProperty>of(), callContext);

        testListener.pushExpectedEvents(NextEvent.BLOCK);
        clock.setDay(resumeDate);
        assertListenerStatus();

        final LocalDate cancelDate = new LocalDate(2013, 12, 27);
        baseEntitlement.cancelEntitlementWithDate(cancelDate, true, ImmutableList.<PluginProperty>of(), callContext);

        testListener.pushExpectedEvents(NextEvent.CANCEL, NextEvent.BLOCK);
        clock.setDay(cancelDate);
        assertListenerStatus();

        final SubscriptionBundle bundle = subscriptionApi.getSubscriptionBundle(baseEntitlement.getBundleId(), callContext);
        final List<SubscriptionEvent> transitions = bundle.getTimeline().getSubscriptionEvents();
        assertEquals(transitions.size(), 9);
        checkSubscriptionEventAuditLog(transitions, 0, SubscriptionEventType.START_ENTITLEMENT);
        checkSubscriptionEventAuditLog(transitions, 1, SubscriptionEventType.START_BILLING);
        checkSubscriptionEventAuditLog(transitions, 2, SubscriptionEventType.PHASE);
        checkSubscriptionEventAuditLog(transitions, 3, SubscriptionEventType.PAUSE_ENTITLEMENT);
        checkSubscriptionEventAuditLog(transitions, 4, SubscriptionEventType.PAUSE_BILLING);
        checkSubscriptionEventAuditLog(transitions, 5, SubscriptionEventType.RESUME_ENTITLEMENT);
        checkSubscriptionEventAuditLog(transitions, 6, SubscriptionEventType.RESUME_BILLING);
        checkSubscriptionEventAuditLog(transitions, 7, SubscriptionEventType.STOP_ENTITLEMENT);
        checkSubscriptionEventAuditLog(transitions, 8, SubscriptionEventType.STOP_BILLING);
    }

    @Test(groups = "slow")
    public void testSubscriptionCreationWithFutureDate() throws AccountApiException, SubscriptionApiException, EntitlementApiException {
        final String externalKey = "vritti";

        final LocalDate initialDate = new LocalDate(2013, 8, 7);
        clock.setDay(initialDate);

        final Account account = createAccount(getAccountData(7));

        final PlanPhaseSpecifier spec = new PlanPhaseSpecifier("Shotgun", BillingPeriod.MONTHLY, PriceListSet.DEFAULT_PRICELIST_NAME, null);

        //2013-08-07
        final LocalDate effectiveDate = initialDate.plusMonths(1);

        // Create entitlement and check each field
        final Entitlement entitlement = entitlementApi.createBaseEntitlement(account.getId(), spec, externalKey, null, effectiveDate, effectiveDate, false, ImmutableList.<PluginProperty>of(), callContext);

        final Subscription subscription = subscriptionApi.getSubscriptionForEntitlementId(entitlement.getId(), callContext);

        final List<SubscriptionEvent> events = subscription.getSubscriptionEvents();
        assertEquals(events.size(), 3);

        assertEquals(events.get(0).getSubscriptionEventType(), SubscriptionEventType.START_ENTITLEMENT);
        assertEquals(events.get(0).getEffectiveDate().compareTo(effectiveDate), 0);

        assertEquals(events.get(1).getSubscriptionEventType(), SubscriptionEventType.START_BILLING);
        assertEquals(events.get(1).getEffectiveDate().compareTo(effectiveDate), 0);

        assertEquals(events.get(2).getSubscriptionEventType(), SubscriptionEventType.PHASE);
        assertEquals(events.get(2).getEffectiveDate().compareTo(effectiveDate.plusMonths(1)), 0);

        assertListenerStatus();
    }

    @Test(groups = "slow")
    public void testCancelFutureSubscription() throws AccountApiException, EntitlementApiException, SubscriptionApiException {

        final LocalDate initialDate = new LocalDate(2013, 8, 7);
        clock.setDay(initialDate);

        final Account account = createAccount(getAccountData(7));

        final PlanPhaseSpecifier spec = new PlanPhaseSpecifier("Shotgun", BillingPeriod.ANNUAL, PriceListSet.DEFAULT_PRICELIST_NAME, null);

        final LocalDate futureDate = new LocalDate(2013, 9, 1);

        // No CREATE event as this is set in the future
        final Entitlement createdEntitlement = entitlementApi.createBaseEntitlement(account.getId(), spec, account.getExternalKey(), null, futureDate, futureDate, false, ImmutableList.<PluginProperty>of(), callContext);
        assertEquals(createdEntitlement.getEffectiveStartDate().compareTo(futureDate), 0);
        assertEquals(createdEntitlement.getEffectiveEndDate(), null);

        final Entitlement baseEntitlement = entitlementApi.getEntitlementForId(createdEntitlement.getId(), callContext);
        assertEquals(baseEntitlement.getEffectiveStartDate().compareTo(futureDate), 0);
        assertEquals(baseEntitlement.getEffectiveEndDate(), null);

        final Entitlement cancelledEntitlement = baseEntitlement.cancelEntitlementWithPolicyOverrideBillingPolicy(EntitlementActionPolicy.IMMEDIATE, BillingActionPolicy.IMMEDIATE, null, callContext);
        assertEquals(cancelledEntitlement.getEffectiveEndDate().compareTo(futureDate), 0);

        final Subscription subscription = subscriptionApi.getSubscriptionForEntitlementId(cancelledEntitlement.getId(), callContext);
        assertEquals(subscription.getEffectiveEndDate().compareTo(futureDate), 0);

        assertListenerStatus();
    }

    @Test(groups = "slow")
    public void testAddBlockingState() throws AccountApiException, EntitlementApiException, SubscriptionApiException {

        final LocalDate initialDate = new LocalDate(2013, 8, 7);
        clock.setDay(initialDate);

        final Account account = accountApi.createAccount(getAccountData(7), callContext);

        final PlanPhaseSpecifier spec = new PlanPhaseSpecifier("Shotgun", BillingPeriod.ANNUAL, PriceListSet.DEFAULT_PRICELIST_NAME, null);

        testListener.pushExpectedEvents(NextEvent.CREATE, NextEvent.BLOCK);
        final Entitlement createdEntitlement = entitlementApi.createBaseEntitlement(account.getId(), spec, account.getExternalKey(), null, initialDate, initialDate, false, ImmutableList.<PluginProperty>of(), callContext);

        final Iterable<BlockingState> iterableForCreateState = subscriptionApi.getBlockingStates(account.getId(), ImmutableList.of(BlockingStateType.SUBSCRIPTION), null, OrderingType.ASCENDING, SubscriptionApi.ALL_EVENTS, callContext);
        assertTrue(iterableForCreateState.iterator().hasNext());
        final BlockingState createState = iterableForCreateState.iterator().next();
        assertEquals(createState.getService(), EntitlementService.ENTITLEMENT_SERVICE_NAME);
        assertListenerStatus();

        testListener.pushExpectedEvent(NextEvent.BLOCK);
        final BlockingState state1 = new DefaultBlockingState(account.getId(), BlockingStateType.ACCOUNT, "accountBlock", "svc1", false, true, false, clock.getUTCNow());
        subscriptionApi.addBlockingState(state1, null, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        Entitlement updateEntitlement = entitlementApi.getEntitlementForId(createdEntitlement.getId(), callContext);
        Assert.assertEquals(updateEntitlement.getState(), EntitlementState.BLOCKED);

        clock.addDays(1);

        testListener.pushExpectedEvent(NextEvent.BLOCK);
        final BlockingState state2 = new DefaultBlockingState(createdEntitlement.getId(), BlockingStateType.SUBSCRIPTION, "subscriptionBlock", "svc2", false, false, false, clock.getUTCNow());
        subscriptionApi.addBlockingState(state2, null, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        // Still blocked because this is a different service
        updateEntitlement = entitlementApi.getEntitlementForId(createdEntitlement.getId(), callContext);
        Assert.assertEquals(updateEntitlement.getState(), EntitlementState.BLOCKED);

        // Now we remove the blocking state for the same service but at the SUBSCRIPTION level
        testListener.pushExpectedEvent(NextEvent.BLOCK);
        final BlockingState state3 = new DefaultBlockingState(createdEntitlement.getId(), BlockingStateType.SUBSCRIPTION, "subscriptionUnBlock", "svc1", false, false, false, clock.getUTCNow());
        subscriptionApi.addBlockingState(state3, null, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        updateEntitlement = entitlementApi.getEntitlementForId(createdEntitlement.getId(), callContext);
        Assert.assertEquals(updateEntitlement.getState(), EntitlementState.BLOCKED);

        final DateTime futureEffectiveDate = clock.getUTCNow().plusDays(1);
        final BlockingState state4 = new DefaultBlockingState(createdEntitlement.getBundleId(), BlockingStateType.SUBSCRIPTION_BUNDLE, "blockBilling", "svc1", true, false, false, futureEffectiveDate);
        subscriptionApi.addBlockingState(state4, internalCallContext.toLocalDate(futureEffectiveDate), ImmutableList.<PluginProperty>of(), callContext);

        final Iterable<BlockingState> blockingStates1 = subscriptionApi.getBlockingStates(account.getId(), ImmutableList.of(BlockingStateType.ACCOUNT, BlockingStateType.SUBSCRIPTION), ImmutableList.of("svc1", "svc2"), OrderingType.ASCENDING, SubscriptionApi.PAST_OR_PRESENT_EVENTS, callContext);
        verifyBlockingStates(blockingStates1, ImmutableList.<BlockingState>of(state1, state2, state3));

        final Iterable<BlockingState> blockingStates2 = subscriptionApi.getBlockingStates(account.getId(), ImmutableList.of(BlockingStateType.SUBSCRIPTION), ImmutableList.of("svc1", "svc2"), OrderingType.DESCENDING, SubscriptionApi.PAST_OR_PRESENT_EVENTS, callContext);
        verifyBlockingStates(blockingStates2, ImmutableList.<BlockingState>of(state3, state2));

        final Iterable<BlockingState> blockingStates3 = subscriptionApi.getBlockingStates(account.getId(), ImmutableList.of(BlockingStateType.SUBSCRIPTION), ImmutableList.of("svc2"), OrderingType.DESCENDING, SubscriptionApi.PAST_OR_PRESENT_EVENTS, callContext);
        verifyBlockingStates(blockingStates3, ImmutableList.<BlockingState>of(state2));

        final Iterable<BlockingState> blockingStates4 = subscriptionApi.getBlockingStates(account.getId(), null, null, OrderingType.DESCENDING, SubscriptionApi.ALL_EVENTS, callContext);
        verifyBlockingStates(blockingStates4, ImmutableList.<BlockingState>of(state4, state3, state2, state1, createState));

        final Iterable<BlockingState> blockingStates5 = subscriptionApi.getBlockingStates(account.getId(), ImmutableList.of(BlockingStateType.SUBSCRIPTION_BUNDLE), null, OrderingType.ASCENDING, SubscriptionApi.FUTURE_EVENTS, callContext);
        verifyBlockingStates(blockingStates5, ImmutableList.<BlockingState>of(state4));

        testListener.pushExpectedEvent(NextEvent.BLOCK);
        clock.addDays(1);
        assertListenerStatus();

        final Iterable<BlockingState> blockingStates6 = subscriptionApi.getBlockingStates(account.getId(), null, null, OrderingType.ASCENDING, SubscriptionApi.PAST_OR_PRESENT_EVENTS, callContext);
        verifyBlockingStates(blockingStates6, ImmutableList.<BlockingState>of(createState, state1, state2, state3, state4));

    }

    @Test(groups = "slow")
    public void testBlockBundle() throws AccountApiException, EntitlementApiException {
        final LocalDate initialDate = new LocalDate(2013, 8, 7);
        clock.setDay(initialDate);

        final Account account = createAccount(getAccountData(7));

        final PlanPhaseSpecifier spec = new PlanPhaseSpecifier("Shotgun", BillingPeriod.ANNUAL, PriceListSet.DEFAULT_PRICELIST_NAME, null);

        // Create entitlement and check each field
        testListener.pushExpectedEvents(NextEvent.CREATE, NextEvent.BLOCK);
        final Entitlement baseEntitlement = entitlementApi.createBaseEntitlement(account.getId(), spec, account.getExternalKey(), null, null, null, false, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        clock.addDays(5);

        testListener.pushExpectedEvents(NextEvent.BLOCK);
        final BlockingState state1 = new DefaultBlockingState(baseEntitlement.getBundleId(), BlockingStateType.SUBSCRIPTION_BUNDLE, "BLOCK", "foo", true, true, true, null);
        subscriptionApi.addBlockingState(state1, null, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        List<Entitlement> bundleEntitlements = entitlementApi.getAllEntitlementsForBundle(baseEntitlement.getBundleId(), callContext);
        assertEquals(bundleEntitlements.size(), 1);
        assertEquals(bundleEntitlements.get(0).getState(), EntitlementState.BLOCKED);

        final BlockingState blockingState = blockingInternalApi.getBlockingStateForService(baseEntitlement.getBundleId(), BlockingStateType.SUBSCRIPTION_BUNDLE, "foo", internalCallContext);
        assertTrue(blockingState.isBlockBilling());
        assertTrue(blockingState.isBlockChange());
        assertTrue(blockingState.isBlockEntitlement());

        // Check unblocking on another service will not bring the state back to ACTIVE
        clock.addDays(1);
        testListener.pushExpectedEvents(NextEvent.BLOCK);
        final BlockingState state2 = new DefaultBlockingState(baseEntitlement.getBundleId(), BlockingStateType.SUBSCRIPTION_BUNDLE, "UNBLOCK", "bar", false, false, false, null);
        subscriptionApi.addBlockingState(state2, null, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        bundleEntitlements = entitlementApi.getAllEntitlementsForBundle(baseEntitlement.getBundleId(), callContext);
        assertEquals(bundleEntitlements.size(), 1);
        assertEquals(bundleEntitlements.get(0).getState(), EntitlementState.BLOCKED);

        testListener.pushExpectedEvents(NextEvent.BLOCK);
        final BlockingState state3 = new DefaultBlockingState(baseEntitlement.getBundleId(), BlockingStateType.SUBSCRIPTION_BUNDLE, "UNBLOCK", "foo", false, false, false, null);
        subscriptionApi.addBlockingState(state3, null, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        bundleEntitlements = entitlementApi.getAllEntitlementsForBundle(baseEntitlement.getBundleId(), callContext);
        assertEquals(bundleEntitlements.size(), 1);
        assertEquals(bundleEntitlements.get(0).getState(), EntitlementState.ACTIVE);

        blockingInternalApi.getBlockingStateForService(baseEntitlement.getBundleId(), BlockingStateType.SUBSCRIPTION_BUNDLE, "foo", internalCallContext);
        clock.addDays(1);

        testListener.pushExpectedEvents(NextEvent.BLOCK);
        final BlockingState state4 = new DefaultBlockingState(baseEntitlement.getBundleId(), BlockingStateType.SUBSCRIPTION_BUNDLE, "BLOCK", "foo", true, true, true, null);
        subscriptionApi.addBlockingState(state4, null, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        bundleEntitlements = entitlementApi.getAllEntitlementsForBundle(baseEntitlement.getBundleId(), callContext);
        assertEquals(bundleEntitlements.size(), 1);
        assertEquals(bundleEntitlements.get(0).getState(), EntitlementState.BLOCKED);

        // Same day but happened after so should take precedence
        testListener.pushExpectedEvents(NextEvent.BLOCK);
        final BlockingState state5 = new DefaultBlockingState(baseEntitlement.getBundleId(), BlockingStateType.SUBSCRIPTION_BUNDLE, "UNBLOCK", "foo", false, false, false, null);
        subscriptionApi.addBlockingState(state5, null, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        bundleEntitlements = entitlementApi.getAllEntitlementsForBundle(baseEntitlement.getBundleId(), callContext);
        assertEquals(bundleEntitlements.size(), 1);
        assertEquals(bundleEntitlements.get(0).getState(), EntitlementState.ACTIVE);
    }


    @Test(groups = "slow", description = "https://github.com/killbill/killbill/issues/452")
    public void testBlockedEntitlementChange() throws AccountApiException, EntitlementApiException {
        final LocalDate initialDate = new LocalDate(2013, 8, 7);
        clock.setDay(initialDate);

        final Account account = createAccount(getAccountData(7));

        final PlanPhaseSpecifier spec = new PlanPhaseSpecifier("Shotgun", BillingPeriod.MONTHLY, PriceListSet.DEFAULT_PRICELIST_NAME, null);

        // Create entitlement and check each field
        testListener.pushExpectedEvents(NextEvent.CREATE, NextEvent.BLOCK);
        final Entitlement entitlement = entitlementApi.createBaseEntitlement(account.getId(), spec, account.getExternalKey(), null, null, null, false, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        clock.addDays(1);
        assertListenerStatus();

        testListener.pushExpectedEvent(NextEvent.BLOCK);
        final BlockingState state = new DefaultBlockingState(entitlement.getBundleId(), BlockingStateType.SUBSCRIPTION_BUNDLE, "MY_BLOCK", "test", true, false, false, null);
        subscriptionApi.addBlockingState(state, null, ImmutableList.<PluginProperty>of(), callContext);
        assertListenerStatus();

        try {
            entitlement.changePlan("Assault-Rifle", BillingPeriod.MONTHLY, PriceListSet.DEFAULT_PRICELIST_NAME, null, ImmutableList.<PluginProperty>of(), callContext);
            fail();
        } catch (final EntitlementApiException e) {
            assertEquals(e.getCode(), ErrorCode.BLOCK_BLOCKED_ACTION.getCode());
            final Entitlement latestEntitlement = entitlementApi.getEntitlementForId(entitlement.getId(), callContext);
            assertEquals(latestEntitlement.getLastActivePlan().getProduct().getName(), "Shotgun");
        }

        try {
            entitlement.changePlanWithDate("Assault-Rifle", BillingPeriod.MONTHLY, PriceListSet.DEFAULT_PRICELIST_NAME, null, clock.getUTCToday(), ImmutableList.<PluginProperty>of(), callContext);
            fail();
        } catch (final EntitlementApiException e) {
            assertEquals(e.getCode(), ErrorCode.BLOCK_BLOCKED_ACTION.getCode());
            final Entitlement latestEntitlement = entitlementApi.getEntitlementForId(entitlement.getId(), callContext);
            assertEquals(latestEntitlement.getLastActivePlan().getProduct().getName(), "Shotgun");
        }

        try {
            entitlement.changePlanOverrideBillingPolicy("Assault-Rifle", BillingPeriod.MONTHLY, PriceListSet.DEFAULT_PRICELIST_NAME, null, clock.getUTCToday(), BillingActionPolicy.IMMEDIATE, ImmutableList.<PluginProperty>of(), callContext);
            fail();
        } catch (final EntitlementApiException e) {
            assertEquals(e.getCode(), ErrorCode.BLOCK_BLOCKED_ACTION.getCode());
            final Entitlement latestEntitlement = entitlementApi.getEntitlementForId(entitlement.getId(), callContext);
            assertEquals(latestEntitlement.getLastActivePlan().getProduct().getName(), "Shotgun");
        }
    }


    private void verifyBlockingStates(final Iterable<BlockingState> result, final List<BlockingState> expected) {
        int i = 0;
        final Iterator<BlockingState> iterator = result.iterator();
        while (iterator.hasNext()) {
            final BlockingState cur = iterator.next();
            final BlockingState expectedItem = expected.get(i);
            assertEquals(cur.isBlockBilling(), expectedItem.isBlockBilling());
            assertEquals(cur.isBlockEntitlement(), expectedItem.isBlockEntitlement());
            assertEquals(cur.isBlockChange(), expectedItem.isBlockChange());
            assertEquals(cur.getService(), expectedItem.getService());
            assertEquals(cur.getStateName(), expectedItem.getStateName());
            assertEquals(cur.getBlockedId(), expectedItem.getBlockedId());
            assertEquals(internalCallContext.toLocalDate(cur.getEffectiveDate()).compareTo(internalCallContext.toLocalDate(expectedItem.getEffectiveDate())), 0);
            i++;
        }
        assertEquals(i, expected.size());
    }

    private void checkSubscriptionEventAuditLog(final List<SubscriptionEvent> transitions, final int idx, final SubscriptionEventType expectedType) {
        assertEquals(transitions.get(idx).getSubscriptionEventType(), expectedType);
        final List<AuditLog> auditLogs = auditUserApi.getAuditLogs(transitions.get(idx).getId(), transitions.get(idx).getSubscriptionEventType().getObjectType(), AuditLevel.FULL, callContext);
        assertEquals(auditLogs.size(), 1);
        assertEquals(auditLogs.get(0).getChangeType(), ChangeType.INSERT);
    }
}
