package compbio.controllers;

import java.util.List;
import java.util.Map;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

import compbio.beans.TotalByCounterBean;
import compbio.beans.UserBean;
import compbio.cassandra.readers.CassandraReader;
import compbio.cassandra.readers.IpReader;
import compbio.cassandra.readers.ReaderByCounter;

/**
 * The controller 
 * 
 * @author Alexander Sherstnev
 * @author Natasha Sherstneva
 * @version 1.0
 */
@Controller
public class IPDataController extends BasicController {
	/**
	 * default minimal jobs to consider a user "heavy user"
	 */
	private int minimalJobsFromIP = 5;
	
	/**
	 * for initial page for request "heavy users"
	 * 
	 */
	@RequestMapping(value = "/admin/ip/counts/query", method = RequestMethod.GET)
	public String initStatisticsForm(Map<String, Object> model) {
		model.put("username", getPrincipalName());
		model.put("value", minimalJobsFromIP);
		return "query/IPStatistics";
	}

	/**
	 * form query page for requesting a single IP
	 * 
	 * @param model - MVC abstract model
	 * @return
	 */
	@RequestMapping(value = "/admin/ip/query", method = RequestMethod.GET)
	public String initOneIPForm(Map<String, Object> model) {
		model.put("username", getPrincipalName());
		CassandraReader cr = new CassandraReader();
		model.put("value", cr.getExample("ip"));
		return "query/IP";
	}

	/**
	 * Form output model with statistics on "heavy users"
	 * @param counter - the number of jobs for requested "heavy users"
	 * @param model - abstract MVC model
	 * @return
	 */
	@RequestMapping(value = "/admin/ip/counts/results", method = RequestMethod.GET)
	public String findIPwithCounter(@RequestParam("JobCounter") String counter, Map<String, Object> model) {
		model.put("username", getPrincipalName());
		if (counter.equals("")) {
			model.put("error", "The value must not be empty");
			model.put("value", counter);
			return "query/IPStatistics";
		}

		int realcounter;
		try {
			realcounter = Integer.parseInt(counter.trim());
		} catch (NumberFormatException e) {
			model.put("error", "The value must be an integer number");
			model.put("value", counter);
			return "query/IPStatistics";
		}

		if (realcounter < 1) {
			model.put("error", "The value must be greater than 0");
			model.put("value", counter);
			return "query/IPStatistics";
		}

		final long startTime = System.currentTimeMillis();
		ReaderByCounter reader = new ReaderByCounter();
		List<TotalByCounterBean> r = reader.readIpByCounter(realcounter);
		model.put("results", r);
		model.put("njobs", 0);
		String csvline = "";
		if (null != r) {
			model.put("njobs", r.size());
			csvline = "\'Job%20 count\', \'IP\'%0A";
		}
		// form line for CSV file
		for (TotalByCounterBean b : r) {
			csvline += "\'" + b.getTotaljobs() + "\',\'" + b.getName() + "\'%0A";
		}
		model.put("csvfile", csvline);
		final long endTime = System.currentTimeMillis();
		model.put("timeExecution", (endTime - startTime));
		model.put("counter", realcounter);
		return "reports/IPstatistics";
	}

	@RequestMapping(value = "/admin/ip/results", method = RequestMethod.GET)
	public String findIP(@RequestParam("ip") String ip, Map<String, Object> model) {
		model.put("username", getPrincipalName());
		final long startTime = System.currentTimeMillis();
		IpReader reader = new IpReader();
		UserBean r = reader.readIp(ip);
		model.put("results", r);
		model.put("njobs", 0);
		if (null != r) {
			model.put("njobs", r.getMainInfo().size());
		}
		final long endTime = System.currentTimeMillis();
		model.put("timeExecution", (endTime - startTime));
		model.put("ip", ip);
		return "reports/IP";
	}
}