/**
 * 
 */
package org.gcube.portlets.user.workspace;

import org.apache.log4j.Logger;
import org.gcube.common.homelibary.model.items.type.WorkspaceItemType;
import org.gcube.common.homelibrary.home.HomeLibrary;
import org.gcube.common.homelibrary.home.exceptions.InternalErrorException;
import org.gcube.common.homelibrary.home.workspace.Workspace;
import org.gcube.common.homelibrary.home.workspace.WorkspaceItem;
import org.gcube.common.homelibrary.home.workspace.folder.FolderItem;
import org.gcube.common.homelibrary.home.workspace.folder.items.ExternalFile;
import org.gcube.common.homelibrary.home.workspace.folder.items.ExternalImage;
import org.gcube.common.homelibrary.home.workspace.folder.items.ExternalPDFFile;
import org.gcube.common.homelibrary.home.workspace.folder.items.GCubeItem;
import org.gcube.common.scope.api.ScopeProvider;
import org.gcube.common.scope.impl.ScopeBean;
import org.gcube.portlets.user.workspace.server.GWTWorkspaceBuilder;
import org.gcube.portlets.user.workspace.server.resolver.UriResolverReaderParameterForResolverIndex;
import org.gcube.portlets.user.workspace.server.resolver.UriResolverReaderParameterForResolverIndex.RESOLVER_TYPE;
import org.gcube.portlets.user.workspace.server.util.HttpRequestUtil;
import org.gcube.portlets.user.workspace.server.util.StringUtil;

/**
 * @author Francesco Mangiacrapa francesco.mangiacrapa{@literal @}isti.cnr.it
 * Jul 3, 2013
 *
 */
public class SinglePublicLinkTest {
	
	
	protected static Logger logger = Logger.getLogger(SinglePublicLinkTest.class);
	
//	public static String DEFAULT_SCOPE = "/d4science.research-infrastructures.eu/gCubeApps"; //PRODUCTION
	public static String DEFAULT_SCOPE = "/gcube/devsec"; //DEV
	
	public static void main(String[] args) {

		try {

			ScopeBean scope = new ScopeBean(DEFAULT_SCOPE);
			ScopeProvider.instance.set(scope.toString());
			
			Workspace ws = HomeLibrary
					.getHomeManagerFactory()
					.getHomeManager()
					.getHome("francesco.mangiacrapa")
					.getWorkspace();
			//
			
			System.out.println("start get root");
			WorkspaceItem root = ws.getRoot();
			

			for (WorkspaceItem wsi : root.getChildren()) {
				if(wsi.getType().equals(WorkspaceItemType.FOLDER_ITEM)){
					try{
						String publicLink = getPublicLinkForFolderItemId(wsi.getId(), true, ws);
						System.out.println("\nITEM: "+wsi.getName());
						System.out.println(publicLink);
//					break;
					}catch(Exception e){
						e.printStackTrace();
					}
				}
			}

			
//			System.out.println("start get children");
//			List<? extends WorkspaceItem> children = root.getChildren();
//
//			
//			System.out.println("children size: "+children.size());
//			
//			int i=0;
//			for (WorkspaceItem workspaceItem : children) {
//				
//				
//				if(workspaceItem.getType().equals(WorkspaceItemType.FOLDER) || workspaceItem.getType().equals(WorkspaceItemType.SHARED_FOLDER)){
//					
//					WorkspaceFolder folder = (WorkspaceFolder) workspaceItem;
//					
//					System.out.println(++i+") folder name: "+folder.getName() + " is shared: "+folder.isShared());
//				}else{
//					
//				
//					if(workspaceItem.getType().equals(WorkspaceItemType.FOLDER_ITEM)){
//					
//					FolderItem folderItem = (FolderItem) workspaceItem;
//					
//					String publicLink = getPubliLinkForFolderItem(folderItem);
//					
//					System.out.println(++i+") folderItem id: "+folderItem.getId() +", name: "+folderItem.getName() + ", ### Public link: "+publicLink);
//					}
//					
//				}
//			}
			System.out.println("end");
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	

	public static String getPublicLinkForFolderItemId(String itemId, boolean shortenUrl, Workspace workspace) throws Exception{

		logger.trace("get Public Link For ItemId: "+ itemId);
		
		GWTWorkspaceBuilder builder = new GWTWorkspaceBuilder();
		
		try{

			WorkspaceItem wsItem = workspace.getItem(itemId);
			
			if(wsItem.getType().equals(WorkspaceItemType.FOLDER_ITEM)){
	
				FolderItem folderItem = (FolderItem) wsItem;
				String storageID = builder.getStorageIDForFolderItem(folderItem);
				
				if(storageID==null || storageID.isEmpty())
					throw new Exception("Sorry, public link on "+wsItem.getName() +" is not available");
				
				UriResolverReaderParameterForResolverIndex uriResolver = new UriResolverReaderParameterForResolverIndex(DEFAULT_SCOPE, RESOLVER_TYPE.SMP_ID);

				String uriRequest = "";
				
				if(uriResolver!=null && uriResolver.isAvailable()){
					
					String itemName = StringUtil.removeSpecialCharacters(folderItem.getName());
					itemName = StringUtil.replaceAllWhiteSpace(itemName, "_");
					uriRequest =  uriResolver.resolveAsUriRequest(storageID, itemName, folderItem.getMimeType(), true);

					//VALIDATE CONNECTION
					if(!HttpRequestUtil.urlExists(uriRequest+"&validation=true"))
						throw new Exception("Sorry, The Public Link for selected file is unavailable");
					
//					if(shortenUrl)	
//						uriRequest = getShortUrl(uriRequest);
					
					return uriRequest;
				}
				else
					throw new Exception("Sorry, The Uri resolver service is temporarily unavailable. Please try again later");
				
			}else{
				logger.warn("ItemId: "+ itemId +" is not a folder item, sent exception Public Link  unavailable");
				throw new Exception("Sorry, The Public Link for selected file is unavailable");
			}

		}catch (Exception e) {
			logger.error("Error getPublicLinkForFolderItemId for item: "+itemId, e);
			e.printStackTrace();
			throw new Exception(e.getMessage());
		}
		
	}
	protected static String getPubliLinkForFolderItem(FolderItem worspaceFolderItem) throws InternalErrorException{
		
		if(worspaceFolderItem==null)
			return "";
		
		try{
			
			switch(worspaceFolderItem.getFolderItemType())
			{
				case EXTERNAL_IMAGE: 
					return ((ExternalImage) worspaceFolderItem).getPublicLink();
				case EXTERNAL_FILE: 
					return ((ExternalFile) worspaceFolderItem).getPublicLink();
				case EXTERNAL_PDF_FILE: 
					return ((ExternalPDFFile) worspaceFolderItem).getPublicLink();
				case EXTERNAL_URL: 
					break;
				case REPORT_TEMPLATE: 
					break;
				case REPORT:
					break;
				case QUERY: 
					break;
				case TIME_SERIES: 
					break;
	//			case AQUAMAPS_ITEM: 
	//				break;
				case PDF_DOCUMENT:
					break;
				case IMAGE_DOCUMENT: 
					GCubeItem imgDoc = (GCubeItem) worspaceFolderItem; //Cast GCubeItem
					return imgDoc.getPublicLink(false);
				case DOCUMENT: 
					break;
				case URL_DOCUMENT: 
					break;
				case METADATA: 
					break;
				default:
					return "";
			}
		
		}catch (Exception e) {
			logger.error("an error occurred when get public link for item: "+worspaceFolderItem.getName());
			return "";
		}
		
		return "";
	}

}