package com.frevvo.forms.cli.shell;
   
   import java.io.File;
   import java.io.FileInputStream;
   import java.io.IOException;
   
   import asg.cliche.Command;
   
   import com.frevvo.forms.cli.ApiHelper;
  import com.frevvo.forms.cli.core.FeedShell;
  import com.frevvo.forms.client.SchemaEntry;
  import com.frevvo.forms.client.SchemaFeed;
  import com.google.gdata.data.media.MediaStreamSource;
  import com.google.gdata.util.ServiceException;
  
  /**
   * Shell context for all commands related to schema feeds
   */
  public class SchemaFeedShell extends
  		FeedShell<SchemaFeed, SchemaEntry, SchemaEntryShell> {
  	public static final String PATH_ELEMENT = "schemas";
  
  	public SchemaFeedShell(SchemaFeed feed) {
  		super(PATH_ELEMENT, feed, SchemaFeed.class);
  	}
  
  	@Command(name = "up", description = "UPLOAD a schema (e.g. 'upload /var/contacts.xsd')")
  	public String upload(String filePath) throws IOException, ServiceException {
  		File f = new File(filePath);
  		if (!f.exists())
  			return "File " + filePath + " doesnt exist";
  
  		try {
  			// upload
  			FileInputStream fis = new FileInputStream(f);
  			try {
  				SchemaFeed schemas = getFeed();
  				MediaStreamSource ms = new MediaStreamSource(fis,
  						"application/zip");
  				SchemaEntry schema = schemas.insert(ms);
  
  				go(createEntryShell(schema));
  				return "Schema " + ApiHelper.getName(schema)
  						+ " successfully uploaded";
  			} finally {
  				fis.close();
  			}
  		} catch (ServiceException ex) {
  			return "Could not upload formtype "
  					+ filePath
  					+ ": are you trying to upload an formtype with an id that already exists";
  		} catch (Exception ex) {
  			return "Could not upload formtype " + filePath + ": "
  					+ ex.getMessage();
  		}
  	}
  
  	@Override
  	protected SchemaEntry createEntry(String name, String description)
  			throws IOException, ServiceException {
  		return null; // not supported
  	}
  
  	@Override
  	protected SchemaEntryShell createEntryShell(SchemaEntry entry) {
  		return new SchemaEntryShell(entry);
  	}
  
  	@Override
  	protected String print(SchemaFeed feed) {
  		return ApiHelper.print(feed);
  	}
  }