package org.vamsas.test.simpleclient;

import java.io.InputStream;

import org.vamsas.client.simpleclient.VamsasArchiveReader;
import org.vamsas.objects.core.ApplicationData;
import org.vamsas.objects.core.VAMSAS;
import org.vamsas.objects.core.VamsasDocument;

public class ArchiveReports {
    /**
     * print an informative summary on a VamsasDocument
     * @param document - the document itself
     * @param archive - document source archive for resolving any appData refs
     * @return
     */
  public static boolean reportDocument(VamsasDocument document, VamsasArchiveReader archive) {
    if (document!=null) {
      System.out.print("Vamsas Document version '"+document.getVersion()+"'");
      System.out.print("Document contains "+document.getVAMSASCount()+" VAMSAS Elements and "+document.getApplicationDataCount()+" elements.\n");
      if (document.getApplicationDataCount()>0) {
        System.out.print("There are "+document.getApplicationDataCount()+" ApplicationData references.\n");
        ApplicationData appd[] = document.getApplicationData();
        for (int i=0,j=appd.length; i<j; i++) {
          System.out.print("Application "+i+": '"+appd[i].getName()+"'\nVersion '"+appd[i].getVersion()+"'\nURN: '"+appd[i].getUrn()+"'\n");
          System.out.print("AppData is ");
          if (appd[i].getAppDataChoice().getDataReference()!=null) {
            String appData=appd[i].getAppDataChoice().getDataReference();
            if (appData.length()>1) {
              System.out.print("a reference ("+appData+")");
              InputStream jstrm;
              if ((jstrm=archive.getAppdataStream(appData))!=null)
                System.out.println(" which resolves to a JarEntry.");
              else {
                System.out.println(" which does not resolve to a JarEntry.");
                System.err.println("Unresolved appdata reference '"+appData+"'");
              }
            } else {
              System.out.println("an empty reference.");
            }
          } else {
            System.out.println("an embedded chunk of "+appd[i].getAppDataChoice().getData().length+" bytes.");
          }
        }
          
      }
      return true;
    } else {
      System.out.print("Document Object is null");
    }
    return false;
  }

  /**
   * summarises all the datasets in a vamsas document.
   * @param roots
   * @return
   */
  public static boolean rootReport(VAMSAS[] roots) {
    if (roots!=null) {
      for (int i=0; i<roots.length; i++) {
        VAMSAS r = roots[i];
        System.out.print("Vamsas Root "+i+" (id="
            +((r.getId()!=null) ? r.getId():"<none>")
            +") contains "+r.getDataSetCount()+" DataSets, "
            + r.getTreeCount()+" Global trees");
      }
      return true;
    }
    return false;
  }

}