/*
 * This is eMonocot, a global online biodiversity information resource.
 *
 * Copyright © 2011–2015 The Board of Trustees of the Royal Botanic Gardens, Kew and The University of Oxford
 *
 * eMonocot is free software: you can redistribute it and/or modify it under the terms of the
 * GNU Affero General Public License as published by the Free Software Foundation, either version 3
 * of the License, or (at your option) any later version.
 *
 * eMonocot is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * The complete text of the GNU Affero General Public License is in the source repository as the file
 * ‘COPYING’.  It is also available from <http://www.gnu.org/licenses/>.
 */
package org.emonocot.portal.controller;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;

import org.emonocot.api.JobInstanceService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.JobInstance;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
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;

/**
 *
 * @author ben
 *
 */
@Controller
public class JobInstanceController {

	/**
	 *
	 */
	private static Logger logger = LoggerFactory
			.getLogger(JobInstanceController.class);

	/**
	 *
	 */
	private JobInstanceService service;

	/**
	 *
	 */
	private String baseUrl;

	/**
	 *
	 * @param newBaseUrl Set the base url
	 */
	public final void setBaseUrl(final String newBaseUrl) {
		this.baseUrl = newBaseUrl;
	}

	/**
	 * @param service set the job instance service
	 */
	@Autowired
	public final void setInstanceService(JobInstanceService service) {
		this.service = service;
	}

	@RequestMapping(value = "/jobInstance",
			method = RequestMethod.GET,
			consumes = "application/json",
			produces = "application/json")
	public final ResponseEntity<List<JobInstance>> list(@RequestParam(value = "limit", required = false, defaultValue = "10") Integer limit,
			@RequestParam(value = "start", required = false, defaultValue = "0") Integer start) {
		return new ResponseEntity<List<JobInstance>>(service.list(limit, start), HttpStatus.OK);
	}

	/**
	 * @param identifier
	 *            Set the identifier of the group
	 * @return A model and view containing a group
	 */
	@RequestMapping(value = "/jobInstance/{identifier}",
			method = RequestMethod.GET,
			produces = "application/json")
	public final ResponseEntity<JobInstance> get(
			@PathVariable final Long identifier) {
		return new ResponseEntity<JobInstance>(service.find(identifier),
				HttpStatus.OK);
	}

	/**
	 * @param jobInstance
	 *            the job instance to save
	 * @return A response entity containing a newly created job instance
	 */
	@RequestMapping(value = "/jobInstance",
			method = RequestMethod.POST)
	public final ResponseEntity<JobInstance> create(@RequestBody final JobInstance jobInstance) {
		HttpHeaders httpHeaders = new HttpHeaders();
		try {
			httpHeaders.setLocation(new URI(baseUrl + "/jobInstance/"
					+ jobInstance.getId()));
		} catch (URISyntaxException e) {
			logger.error(e.getMessage());
		}
		service.save(jobInstance);
		ResponseEntity<JobInstance> response = new ResponseEntity<JobInstance>(
				jobInstance, httpHeaders, HttpStatus.CREATED);
		return response;
	}

	/**
	 * @param identifier
	 *            Set the identifier of the jobInstance
	 * @return A response entity containing the status
	 */
	@RequestMapping(value = "/jobInstance/{identifier}",
			method = RequestMethod.DELETE)
	public final ResponseEntity<JobInstance> delete(
			@PathVariable final Long identifier) {
		service.delete(identifier);
		return new ResponseEntity<JobInstance>(HttpStatus.OK);
	}
}