Subversion Repositories SmartDukaan

package in.shop2020.serving.controllers;

import in.shop2020.serving.services.SolrSearchService;

import in.shop2020.serving.utils.FileUtils;

import in.shop2020.serving.utils.Utils;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader;

import java.io.IOException;

import java.net.URLEncoder;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.HashMap;

import java.util.LinkedHashMap;

import java.util.List;

import java.util.Map;

import java.util.Map.Entry;

import org.apache.commons.lang.StringUtils;

import org.apache.log4j.Logger;

import org.apache.struts2.convention.annotation.Result;

import org.json.JSONException;

import org.json.JSONObject;

/**

 * @author rajveer

 *

 */

@Result(name = "index", location = "special-page-index.vm")

public class SpecialPageController extends BaseController {

    private static final long serialVersionUID = 1L;

    private static Logger log = Logger.getLogger(Class.class);

	private static Map<String, JSONObject> specialPagesDetails;

	private static final String[] facetDefIDs = 

	    new String[] {"F_50010","F_50011","F_50002","F_50001",  "F_50006", "F_50007" };

	private static final String[] facetLabels = 

	    new String[] {"Category","Sub Category","Price", "Brand", "Data Connectivity", "Camera Resolution" };

	static {

	    try {

	        loadSpecialPagesDetails();

	    }

	    catch (IOException e) {

            log.error("Could not load special pages details", e);

        }

	    catch (JSONException e) {

            log.error("Could not load special pages details", e);

        }

	}

	private List<String> results;

	private Map<String, String> snippets;

	private Map<String, List<String[]>> facets;

	private List<String[]> crumbs;

	private String specialPageName;

	private String specialPageTitle;

	private String facetSelection = "";

	private String query;

	private Double minPrice;

	private Double maxPrice;

	private long windowSize = 20;

	private long page = 1;

	private long totalResults;

	private long beginIndex = 0;

	private String url;

	private String priceUrl = "?";

	/**

	 * GET /abc/10004

	 * 

	 */

//    @Actions({ @Action("/nokia"),

//               @Action("/samsung"),

//               @Action("/spice"),

//               @Action("/blackberry"),

//               @Action("/sony-ericsson"),

//               @Action("/micromax"),

//               @Action("/lg"),

//               @Action("/htc"),

//               @Action("/motorola"),

//               @Action("/dell"),

//               @Action("/apple"),

//               @Action("/android"),

//               @Action("/brand") })

    public String index() throws SecurityException, IOException, JSONException {

	    String uri = request.getRequestURI();

	    log.info("Uri: " + uri);

	    specialPageName  = getSpecialPageNameFromUri(uri);

	    specialPageTitle = getSpecialPageTitleFromUri(uri);

	    query            = getQueryFromUri(uri);

    	String[] fqrys = this.request.getParameterValues("fq");

    	url = "?";

    	int length = 1;

    	if(fqrys!= null){

    		length += fqrys.length;

    	}

    	String[] newfqrys;

    	if(specialPageName.equals("Android")){

    		newfqrys = new String[length];

    	}

    	else {

    		newfqrys = new String[length+1];

    	}

    	if(specialPageName.equals("Android")){

    		newfqrys[0] = "F_50010:" + "(\"Mobile Phones\" OR Tablets)";

    	}

    	else {

    		newfqrys[0] = "F_50001:" + specialPageName;

    		newfqrys[length] = "F_50010:" + "(\"Mobile Phones\" OR Tablets)";

    	}

    	String urlCrumb = url;

    	this.crumbs = new ArrayList<String[]>();

    	List<String> arrList = Arrays.asList(facetDefIDs);

    	for(int i=1; i<length; i++) {

    		newfqrys[i] = fqrys[i-1];

    		urlCrumb += "&fq=" + URLEncoder.encode(fqrys[i-1], "UTF-8");

    		priceUrl += "&fq=" + URLEncoder.encode(fqrys[i-1], "UTF-8");

    		String filterUrl = url;

    		String facetName = StringUtils.split(fqrys[i-1], ":")[0];

    		String facetValue = StringUtils.split(fqrys[i-1], ":")[1];

    		String facetLabel = facetLabels[arrList.indexOf(facetName)];

    		this.specialPageTitle += " | " + facetLabel + " " + facetValue;

    		this.facetSelection += facetValue + " ";

    		for(int j=1; j<length; j++) {

    			if(i==j){

    				continue;

    			}

    			filterUrl += "&fq=" + URLEncoder.encode(fqrys[j-1], "UTF-8");

	    	}

    		String[] acrumb = new String[] { facetLabel, facetValue, filterUrl };

    		log.info("acrumb=" + Arrays.toString(acrumb));

    		this.crumbs.add(acrumb);

    	}

		url = urlCrumb;

    	if(this.request.getParameter("page") != null){

    		this.page = Long.parseLong(this.request.getParameter("page"));

    		this.beginIndex = this.windowSize * (this.page-1);

    	}

    	if(this.request.getParameter("min-price") != null){

    		this.minPrice = (new Double(this.request.getParameter("min-price")));

    		url= url + "&min-price=" + this.request.getParameter("min-price");

    	}

    	if(this.request.getParameter("max-price") != null){

    		this.maxPrice = (new Double(this.request.getParameter("max-price")));

    		url= url + "&max-price=" + this.request.getParameter("max-price");

    	}

    	query = query + "&sort=F_50002+asc";

    	SolrSearchService search = new SolrSearchService(query, newfqrys, facetDefIDs, (page-1)*windowSize, windowSize, minPrice, maxPrice, 10000, null);

    	this.results =  search.getResultMap(); 

    	this.facets = new LinkedHashMap<String, List<String[]>>();

    	String qryString = this.request.getQueryString();

    	log.info("qryString=" + qryString);

    	for (int i=0; i<facetDefIDs.length; i++) {

    		String facetDefID = facetDefIDs[i];

    		String facetLabel = facetLabels[i];

    		HashMap<String, Integer> facetDetailMap = search.getFacetDetails(facetDefID);

    		if(facetDetailMap==null)

    			continue;

    		List<String[]> values = new ArrayList<String[]>();

    		String drilldownURL = url + "&fq=" + facetDefID + ":";

    		for(Entry<String, Integer> facetEntry: facetDetailMap.entrySet()){

    		    String facet = facetEntry.getKey();

    			drilldownURL = drilldownURL  + URLEncoder.encode(facet, "UTF-8");

    			String[] afacet = new String[] { facet, 

      					facetEntry.getValue().toString(), drilldownURL  };

      			values.add(afacet);

    		}

    		this.facets.put(facetLabel, values);

    	}

    	Map<String, Double> priceMap = search.getPriceStatsMap();

    	if(priceMap != null){

    		this.minPrice = priceMap.get("min");

    		this.maxPrice = priceMap.get("max");

    	}

    	else{

    		this.minPrice = 0.0;

    		this.maxPrice = 0.0;

    	}

    	this.totalResults = search.getTotalResults();

        return "index";

    }

    public String getPageMetaDesc() {

    	return "Best price " + this.facetSelection + this.specialPageName.replaceAll("Phones", "mobile phones") 

    	    + " mobile phones in India. Experience n' buy online. FREE Next Day delivery. Original product - Full manufacturer warranty. Comprehensive reviews."; 

    }

    public String getPageMetaKeywords() throws JSONException {

       	return specialPagesDetails.get(request.getRequestURI()).getString("metaKeywords");

    }

	public long getBeginIndex(){

		if(totalResults>0)

			return beginIndex+1;

		return beginIndex;

	}

	public long getTotalPages() {

		return 1 + (totalResults-1)/windowSize;

	}

	public Map<String, String> getSnippets(){

    	if(results != null){

    		snippets = new HashMap<String, String>();	

	    	for(String docId: results){

				try {

					snippets.put(docId, FileUtils.read( Utils.EXPORT_ENTITIES_PATH + docId + File.separator +"CategorySnippet.html"));

				} catch (IOException e) {

					log.error(e);

				}

			}

    	}

		return snippets;

    }

    /**

     * Loads all special pages related details

     */

    private static void loadSpecialPagesDetails() throws IOException, JSONException {

        FileReader fr = new FileReader(Utils.EXPORT_ENTITIES_PATH + "../../javascripts/special-pages.json");

        BufferedReader br = new BufferedReader(fr);

        String str = null;

        specialPagesDetails = new HashMap<String, JSONObject>();

        while ((str = br.readLine()) != null) {

            JSONObject jsonObject = new JSONObject(str);

            specialPagesDetails.put(jsonObject.getString("saholicURL"),

                    jsonObject);

        }

        log.info(specialPagesDetails);

    }

    /**

     * Returns true in case a string passed is a special page name

     */

    public static boolean isValidSpecialPage(String specialPage) {

        if (specialPage == null) {

            return false;

        }

        return specialPagesDetails.containsKey(specialPage);

    }

    private String getQueryFromUri(String uri) throws JSONException {

        return specialPagesDetails.get(uri).getString("searchQuery");

    }

    private String getSpecialPageTitleFromUri(String uri) throws JSONException {

        return specialPagesDetails.get(uri).getString("pageTitle");

    }

    private String getSpecialPageNameFromUri(String uri) throws JSONException {

        return specialPagesDetails.get(uri).getString("displayName");

    }

    public long getCurrentPage() {

        return this.page;

    }

    public Double getMinPrice() {

        return this.minPrice;

    }

    public Double getMaxPrice() {

        return this.maxPrice;

    }

    public List<String[]> getCrumbs() {

        return this.crumbs;

    }

    public String getSpecialPageTitle() {

        return this.specialPageTitle;

    }   

    public String getQuery() {

        return this.query;

    }

    public List<String> getResults() {

        return this.results;

    }

    public Map<String, List<String[]>> getFacets() {

        return this.facets;

    }

    public long getTotalResults(){

        return totalResults;

    }

    public String getUrl(){

        return this.url;

    }

    public String getPriceUrl(){

        return this.priceUrl;

    }

    public String getSpecialPageName() {

        return this.specialPageName;

    }   

}