/*
 * Copyright 2012-present the original author or authors.
 *
 * 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
 *
 *      https://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.springframework.boot.actuate.quartz;

import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map.Entry;

import net.minidev.json.JSONArray;
import org.quartz.CalendarIntervalScheduleBuilder;
import org.quartz.CalendarIntervalTrigger;
import org.quartz.CronScheduleBuilder;
import org.quartz.CronTrigger;
import org.quartz.Job;
import org.quartz.JobBuilder;
import org.quartz.JobDataMap;
import org.quartz.JobDetail;
import org.quartz.JobKey;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SimpleScheduleBuilder;
import org.quartz.SimpleTrigger;
import org.quartz.Trigger;
import org.quartz.Trigger.TriggerState;
import org.quartz.TriggerBuilder;
import org.quartz.TriggerKey;
import org.quartz.impl.matchers.GroupMatcher;

import org.springframework.boot.actuate.endpoint.Show;
import org.springframework.boot.actuate.endpoint.web.test.WebEndpointTest;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.quartz.DelegatingJob;
import org.springframework.test.web.reactive.server.WebTestClient;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;

import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.mock;

/**
 * Integration tests for {@link QuartzEndpoint} exposed by Jersey, Spring MVC, and
 * WebFlux.
 *
 * @author Stephane Nicoll
 */
class QuartzEndpointWebIntegrationTests {

	private static final JobDetail jobOne = JobBuilder.newJob(Job.class)
		.withIdentity("jobOne", "samples")
		.usingJobData(new JobDataMap(Collections.singletonMap("name", "test")))
		.withDescription("A sample job")
		.build();

	private static final JobDetail jobTwo = JobBuilder.newJob(DelegatingJob.class)
		.withIdentity("jobTwo", "samples")
		.build();

	private static final JobDetail jobThree = JobBuilder.newJob(Job.class).withIdentity("jobThree").build();

	private static final CronTrigger triggerOne = TriggerBuilder.newTrigger()
		.withDescription("Once a day 3AM")
		.withIdentity("triggerOne")
		.withSchedule(CronScheduleBuilder.dailyAtHourAndMinute(3, 0))
		.build();

	private static final SimpleTrigger triggerTwo = TriggerBuilder.newTrigger()
		.withDescription("Once a day")
		.withIdentity("triggerTwo", "tests")
		.withSchedule(SimpleScheduleBuilder.repeatHourlyForever(24))
		.build();

	private static final CalendarIntervalTrigger triggerThree = TriggerBuilder.newTrigger()
		.withDescription("Once a week")
		.withIdentity("triggerThree", "tests")
		.withSchedule(CalendarIntervalScheduleBuilder.calendarIntervalSchedule().withIntervalInWeeks(1))
		.build();

	@WebEndpointTest
	void quartzReport(WebTestClient client) {
		client.get()
			.uri("/actuator/quartz")
			.exchange()
			.expectStatus()
			.isOk()
			.expectBody()
			.jsonPath("jobs.groups")
			.isEqualTo(new JSONArray().appendElement("samples").appendElement("DEFAULT"))
			.jsonPath("triggers.groups")
			.isEqualTo(new JSONArray().appendElement("DEFAULT").appendElement("tests"));
	}

	@WebEndpointTest
	void quartzJobNames(WebTestClient client) {
		client.get()
			.uri("/actuator/quartz/jobs")
			.exchange()
			.expectStatus()
			.isOk()
			.expectBody()
			.jsonPath("groups.samples.jobs")
			.isEqualTo(new JSONArray().appendElement("jobOne").appendElement("jobTwo"))
			.jsonPath("groups.DEFAULT.jobs")
			.isEqualTo(new JSONArray().appendElement("jobThree"));
	}

	@WebEndpointTest
	void quartzTriggerNames(WebTestClient client) {
		client.get()
			.uri("/actuator/quartz/triggers")
			.exchange()
			.expectStatus()
			.isOk()
			.expectBody()
			.jsonPath("groups.DEFAULT.paused")
			.isEqualTo(false)
			.jsonPath("groups.DEFAULT.triggers")
			.isEqualTo(new JSONArray().appendElement("triggerOne"))
			.jsonPath("groups.tests.paused")
			.isEqualTo(false)
			.jsonPath("groups.tests.triggers")
			.isEqualTo(new JSONArray().appendElement("triggerTwo").appendElement("triggerThree"));
	}

	@WebEndpointTest
	void quartzTriggersOrJobsAreAllowed(WebTestClient client) {
		client.get().uri("/actuator/quartz/something-else").exchange().expectStatus().isBadRequest();
	}

	@WebEndpointTest
	void quartzJobGroupSummary(WebTestClient client) {
		client.get()
			.uri("/actuator/quartz/jobs/samples")
			.exchange()
			.expectStatus()
			.isOk()
			.expectBody()
			.jsonPath("group")
			.isEqualTo("samples")
			.jsonPath("jobs.jobOne.className")
			.isEqualTo(Job.class.getName())
			.jsonPath("jobs.jobTwo.className")
			.isEqualTo(DelegatingJob.class.getName());
	}

	@WebEndpointTest
	void quartzJobGroupSummaryWithUnknownGroup(WebTestClient client) {
		client.get().uri("/actuator/quartz/jobs/does-not-exist").exchange().expectStatus().isNotFound();
	}

	@WebEndpointTest
	void quartzTriggerGroupSummary(WebTestClient client) {
		client.get()
			.uri("/actuator/quartz/triggers/tests")
			.exchange()
			.expectStatus()
			.isOk()
			.expectBody()
			.jsonPath("group")
			.isEqualTo("tests")
			.jsonPath("paused")
			.isEqualTo("false")
			.jsonPath("triggers.cron")
			.isEmpty()
			.jsonPath("triggers.simple.triggerTwo.interval")
			.isEqualTo(86400000)
			.jsonPath("triggers.dailyTimeInterval")
			.isEmpty()
			.jsonPath("triggers.calendarInterval.triggerThree.interval")
			.isEqualTo(604800000)
			.jsonPath("triggers.custom")
			.isEmpty();
	}

	@WebEndpointTest
	void quartzTriggerGroupSummaryWithUnknownGroup(WebTestClient client) {
		client.get().uri("/actuator/quartz/triggers/does-not-exist").exchange().expectStatus().isNotFound();
	}

	@WebEndpointTest
	void quartzJobDetail(WebTestClient client) {
		client.get()
			.uri("/actuator/quartz/jobs/samples/jobOne")
			.exchange()
			.expectStatus()
			.isOk()
			.expectBody()
			.jsonPath("group")
			.isEqualTo("samples")
			.jsonPath("name")
			.isEqualTo("jobOne")
			.jsonPath("data.name")
			.isEqualTo("test");
	}

	@WebEndpointTest
	void quartzJobDetailWithUnknownKey(WebTestClient client) {
		client.get().uri("/actuator/quartz/jobs/samples/does-not-exist").exchange().expectStatus().isNotFound();
	}

	@WebEndpointTest
	void quartzTriggerDetail(WebTestClient client) {
		client.get()
			.uri("/actuator/quartz/triggers/DEFAULT/triggerOne")
			.exchange()
			.expectStatus()
			.isOk()
			.expectBody()
			.jsonPath("group")
			.isEqualTo("DEFAULT")
			.jsonPath("name")
			.isEqualTo("triggerOne")
			.jsonPath("description")
			.isEqualTo("Once a day 3AM")
			.jsonPath("state")
			.isEqualTo("NORMAL")
			.jsonPath("type")
			.isEqualTo("cron")
			.jsonPath("simple")
			.doesNotExist()
			.jsonPath("calendarInterval")
			.doesNotExist()
			.jsonPath("dailyInterval")
			.doesNotExist()
			.jsonPath("custom")
			.doesNotExist()
			.jsonPath("cron.expression")
			.isEqualTo("0 0 3 ? * *");
	}

	@WebEndpointTest
	void quartzTriggerDetailWithUnknownKey(WebTestClient client) {
		client.get().uri("/actuator/quartz/triggers/tests/does-not-exist").exchange().expectStatus().isNotFound();
	}

	@Configuration(proxyBeanMethods = false)
	static class TestConfiguration {

		@Bean
		Scheduler scheduler() throws SchedulerException {
			Scheduler scheduler = mock(Scheduler.class);
			mockJobs(scheduler, jobOne, jobTwo, jobThree);
			mockTriggers(scheduler, triggerOne, triggerTwo, triggerThree);
			return scheduler;
		}

		@Bean
		QuartzEndpoint endpoint(Scheduler scheduler) {
			return new QuartzEndpoint(scheduler, Collections.emptyList());
		}

		@Bean
		QuartzEndpointWebExtension quartzEndpointWebExtension(QuartzEndpoint endpoint) {
			return new QuartzEndpointWebExtension(endpoint, Show.ALWAYS, Collections.emptySet());
		}

		private void mockJobs(Scheduler scheduler, JobDetail... jobs) throws SchedulerException {
			MultiValueMap<String, JobKey> jobKeys = new LinkedMultiValueMap<>();
			for (JobDetail jobDetail : jobs) {
				JobKey key = jobDetail.getKey();
				given(scheduler.getJobDetail(key)).willReturn(jobDetail);
				jobKeys.add(key.getGroup(), key);
			}
			given(scheduler.getJobGroupNames()).willReturn(new ArrayList<>(jobKeys.keySet()));
			for (Entry<String, List<JobKey>> entry : jobKeys.entrySet()) {
				given(scheduler.getJobKeys(GroupMatcher.jobGroupEquals(entry.getKey())))
					.willReturn(new LinkedHashSet<>(entry.getValue()));
			}
		}

		void mockTriggers(Scheduler scheduler, Trigger... triggers) throws SchedulerException {
			MultiValueMap<String, TriggerKey> triggerKeys = new LinkedMultiValueMap<>();
			for (Trigger trigger : triggers) {
				TriggerKey key = trigger.getKey();
				given(scheduler.getTrigger(key)).willReturn(trigger);
				given(scheduler.getTriggerState(key)).willReturn(TriggerState.NORMAL);
				triggerKeys.add(key.getGroup(), key);
			}
			given(scheduler.getTriggerGroupNames()).willReturn(new ArrayList<>(triggerKeys.keySet()));
			for (Entry<String, List<TriggerKey>> entry : triggerKeys.entrySet()) {
				given(scheduler.getTriggerKeys(GroupMatcher.triggerGroupEquals(entry.getKey())))
					.willReturn(new LinkedHashSet<>(entry.getValue()));
			}
		}

	}

}
