/*
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF 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.apache.griffin.core.job;

import java.util.List;

import org.apache.griffin.core.job.entity.AbstractJob;
import org.apache.griffin.core.job.entity.JobHealth;
import org.apache.griffin.core.job.entity.JobInstanceBean;
import org.apache.griffin.core.util.FSUtil;
import org.quartz.SchedulerException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.InputStreamResource;
import org.springframework.core.io.Resource;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/api/v1")
public class JobController {

    @Autowired
    private JobService jobService;

    @RequestMapping(value = "/jobs", method = RequestMethod.GET)
    public List<AbstractJob> getJobs(@RequestParam(value = "type",
            defaultValue = "") String type) {
        return jobService.getAliveJobs(type);
    }

    @RequestMapping(value = "/jobs", method = RequestMethod.POST)
    @ResponseStatus(HttpStatus.CREATED)
    public AbstractJob addJob(@RequestBody AbstractJob job) throws Exception {
        return jobService.addJob(job);
    }

    @RequestMapping(value = "/jobs/config")
    public AbstractJob getJobConfig(@RequestParam("jobId") Long jobId) {
        return jobService.getJobConfig(jobId);
    }

    @RequestMapping(value = "/jobs/{id}", method = RequestMethod.PUT)
    @ResponseStatus(HttpStatus.OK)
    public AbstractJob onActions(
            @PathVariable("id") Long jobId,
            @RequestParam String action) throws Exception {
        return jobService.onAction(jobId, action);
    }

    @RequestMapping(value = "/jobs", method = RequestMethod.DELETE)
    @ResponseStatus(HttpStatus.NO_CONTENT)
    public void deleteJob(@RequestParam("jobName") String jobName)
            throws SchedulerException {
        jobService.deleteJob(jobName);
    }

    @RequestMapping(value = "/jobs/{id}", method = RequestMethod.DELETE)
    @ResponseStatus(HttpStatus.NO_CONTENT)
    public void deleteJob(@PathVariable("id") Long id)
            throws SchedulerException {
        jobService.deleteJob(id);
    }

    @RequestMapping(value = "/jobs/instances", method = RequestMethod.GET)
    public List<JobInstanceBean> findInstancesOfJob(
            @RequestParam("jobId") Long id,
            @RequestParam("page") int page,
            @RequestParam("size") int size) {
        return jobService.findInstancesOfJob(id, page, size);
    }

    @RequestMapping(value = "/jobs/health", method = RequestMethod.GET)
    public JobHealth getHealthInfo() {
        return jobService.getHealthInfo();
    }

    @RequestMapping(path = "/jobs/download", method = RequestMethod.GET)
    public ResponseEntity<Resource> download(
        @RequestParam("jobName") String jobName,
        @RequestParam("ts") long timestamp)
        throws Exception {
        String path = jobService.getJobHdfsSinksPath(jobName, timestamp);
        InputStreamResource resource = new InputStreamResource(
            FSUtil.getMissSampleInputStream(path));
        return ResponseEntity.ok().
                header("content-disposition",
                        "attachment; filename = sampleMissingData.json")
                .contentType(MediaType.APPLICATION_OCTET_STREAM)
                .body(resource);
    }

    @RequestMapping(value = "/jobs/trigger/{id}", method = RequestMethod.POST)
    @ResponseStatus(HttpStatus.NO_CONTENT)
    public void triggerJob(@PathVariable("id") Long id) throws SchedulerException {
        jobService.triggerJobById(id);
    }
}