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package in.shop2020.serving.controllers;
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package in.shop2020.serving.controllers;
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import in.shop2020.datalogger.EventType;
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import in.shop2020.datalogger.EventType;
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import in.shop2020.model.v1.catalog.InventoryService.Client;
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import in.shop2020.model.v1.catalog.InventoryService.Client;
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import in.shop2020.model.v1.catalog.InventoryServiceException;
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import in.shop2020.model.v1.catalog.InventoryServiceException;
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import in.shop2020.serving.utils.EhcacheWrapper;
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import in.shop2020.serving.utils.FileUtils;
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import in.shop2020.serving.utils.FileUtils;
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import in.shop2020.serving.utils.Utils;
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import in.shop2020.serving.utils.Utils;
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import in.shop2020.thrift.clients.CatalogServiceClient;
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import in.shop2020.thrift.clients.CatalogServiceClient;
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import in.shop2020.utils.DataLogger;
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import in.shop2020.utils.DataLogger;
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import java.io.File;
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import java.io.File;
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import java.io.IOException;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.List;
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import net.sf.ehcache.CacheManager;
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import org.apache.log4j.Logger;
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import org.apache.log4j.Logger;
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import org.apache.struts2.convention.annotation.Action;
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import org.apache.struts2.convention.annotation.Action;
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import org.apache.thrift.TException;
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import org.apache.thrift.TException;
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/**
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/**
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 */
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 */
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@SuppressWarnings("serial")
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@SuppressWarnings("serial")
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public class HomeController extends BaseController {
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public class HomeController extends BaseController {
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	private static Logger logger = Logger.getLogger(Class.class);
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	private static Logger logger = Logger.getLogger(Class.class);
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	private static final String CACHE_NAME = "HomePageSnippets";
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	private static final String BEST_DEALS_CACHE_KEY = "home_best_deals_snippet";
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	private static final String BEST_SELLERS_CACHE_KEY = "home_best_sellers_snippet";
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	private static final String LATEST_ARRIVALS_CACHE_KEY = "home_latest_arrivals_snippet";
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	private static List<String> bestDealSnippets = null;
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	private List<String> bestDealSnippets = null;
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	private static List<String> bestSellerSnippets = null;
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	private List<String> bestSellerSnippets = null;
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	private static List<String> latestArrivalSnippets = null;
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	private List<String> latestArrivalSnippets = null;
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	public HomeController(){
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	public HomeController(){
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		super();
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		super();
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	}
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	}
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     */
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     */
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	@Action("/")
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	@Action("/")
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    public String index() throws SecurityException, IOException {
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    public String index() throws SecurityException, IOException {
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    	logger.debug("userinfo:" + userinfo.toString());
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    	logger.debug("userinfo:" + userinfo.toString());
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    	logger.info("Rendering the home page");
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    	logger.info("Rendering the home page");
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    	if(bestDealSnippets == null || bestSellerSnippets == null || latestArrivalSnippets == null){
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    	    logger.info("Cache miss: Reloading best deals, best sellers and latest arrivals");
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            setSnippets();
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    	setSnippets();
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    	}
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    	DataLogger.logData(EventType.HOME_PAGE, session.getId(), userinfo.getUserId(), userinfo.getEmail());
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    	DataLogger.logData(EventType.HOME_PAGE, session.getId(), userinfo.getUserId(), userinfo.getEmail());
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    	return "index";
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    	return "index";
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    }
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    }
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    /**
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    /**
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     * @throws SecurityException
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     * @throws SecurityException
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     * @throws IOException
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     * @throws IOException
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     */
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     */
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	@Action("/refresh-home")
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	@Action("/refresh-home")
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	public String destroy() throws SecurityException, IOException{
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	public String destroy() throws SecurityException, IOException{
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	    logger.info("Reloading best deals, best sellers and latest arrivals");
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        logger.info("Reloading best deals, best sellers and latest arrivals");
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        EhcacheWrapper<String, List<String>> homeSnippetCache = new EhcacheWrapper<String, List<String>>(
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                CACHE_NAME, CacheManager.create());
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        homeSnippetCache.removeAll();
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	    setSnippets();
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	    setSnippets();
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	    return "index";
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	    return "index";
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	}
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	}
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	public List<String> getBestDealSnippets(){
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	public List<String> getBestDealSnippets(){
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	/**
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	/**
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	 * Loads the snippets for best deals, best sellers and latest arrivals
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	 * Loads the snippets for best deals, best sellers and latest arrivals
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	 * into memory.
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	 * into memory.
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	 */
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	 */
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    private void setSnippets() {
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    private void setSnippets() {
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        EhcacheWrapper<String, List<String>> homeSnippetCache = new EhcacheWrapper<String, List<String>>(
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                CACHE_NAME, CacheManager.create());
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        bestDealSnippets = homeSnippetCache.get(BEST_DEALS_CACHE_KEY);
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        bestSellerSnippets = homeSnippetCache.get(BEST_SELLERS_CACHE_KEY);
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        latestArrivalSnippets = homeSnippetCache.get(LATEST_ARRIVALS_CACHE_KEY);
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        if (bestDealSnippets != null && bestSellerSnippets != null && latestArrivalSnippets != null) {
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            return;
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        }
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        List<Long> bestDealCatalogIds = null;
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        List<Long> bestDealCatalogIds = null;
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        List<Long> bestSellerCatalogIds = null;
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        List<Long> bestSellerCatalogIds = null;
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        List<Long> latestArrivalCatalogIds = null;
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        List<Long> latestArrivalCatalogIds = null;
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        int bestSellerCount = 4;
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        int bestSellerCount = 4;
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        }
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        }
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        bestDealSnippets = getSnippets(bestDealCatalogIds);
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        bestDealSnippets = getSnippets(bestDealCatalogIds);
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        bestSellerSnippets = getSnippets(bestSellerCatalogIds.subList(0, bestSellerCount));
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        bestSellerSnippets = getSnippets(bestSellerCatalogIds.subList(0, bestSellerCount));
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        latestArrivalSnippets = getSnippets(latestArrivalCatalogIds).subList(0, latestArrivalCount);
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        latestArrivalSnippets = getSnippets(latestArrivalCatalogIds).subList(0, latestArrivalCount);
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        homeSnippetCache.put(BEST_DEALS_CACHE_KEY, bestDealSnippets);
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        homeSnippetCache.put(BEST_SELLERS_CACHE_KEY, bestSellerSnippets);
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        homeSnippetCache.put(LATEST_ARRIVALS_CACHE_KEY, latestArrivalSnippets);
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    }
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    }
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    /**
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    /**
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     * Returns a list of snippets to be used on the home page corresponding to
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     * Returns a list of snippets to be used on the home page corresponding to
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     * the given catalog ids. The snippets are in the same order as the ids in
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     * the given catalog ids. The snippets are in the same order as the ids in
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            }
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            }
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        }
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        }
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        return snippets;
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        return snippets;
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    }
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    }
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}
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}
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