{{groovy}}
import com.xpn.xwiki.*;
import com.xpn.xwiki.doc.*;
import com.xpn.xwiki.plugin.packaging.*;
import java.util.zip.*;
import com.xpn.xwiki.util.Util;

finalPageName = ""
exception = ""

def updateDoc(String newname, InputStream xml, String type, XWikiContext context)
{
  try {
    def fdoc = new XWikiDocument()

    if ((type == "NOOVERVERSIONS") || (type == "OVERVERSIONS")) {
      fdoc.fromXML(xml, true);
    } else {
      fdoc.fromXML(xml, false);
    }

    int nbAttachments = fdoc.getAttachmentList().size();
    System.out.println("|____ Document: " + fdoc.getFullName() + "-" + fdoc.getLanguage() + "-" + fdoc.getDefaultLanguage() + " - " + fdoc.getVersion() + " - ${nbAttachments} attachments");

    if (newname == "")
      newname = fdoc.getFullName()

    def prevDoc =  context.getWiki().getDocument(newname, context);
    def prevArchive = prevDoc.getDocumentArchive();

    if (prevDoc.isNew() || ((type != "NOOVERVERSIONS") && (type != "NOOVERNOVERSIONS"))) {
      // We need to verify the document has the right name
      // Otherwise we might override something we don't expect
      if ((newname != "") && (fdoc.fullName != newname)) {
        fdoc = fdoc.copyDocument(newname, context);
      }

      finalPageName =  fdoc.getFullName()

      if (type == "ADDVERSION") {
        fdoc.setDocumentArchive(prevArchive);
        context.getWiki().saveDocument(fdoc, context);
        if (prevDoc.isNew()) {
          fdoc.resetArchive(context);
        }

        return 1;
      } else {
        def pack = new Package()
        if ((type == "NOOVERVERSIONS") || (type == "OVERVERSIONS"))
          pack.setWithVersions(true)
        else
          pack.setWithVersions(false)

        pack.setBackupPack(true)
        pack.add(fdoc, 0, context)

        return pack.install(context)
      }
    } else {
      return -1000;
    }
  } catch (Throwable e) {
    exception = e.getMessage()

    return -2000;
  }
}

def updateDoc(ZipFile zipfile, ZipEntry zipentry, String newname, String type, XWikiContext context)
{
  def is = zipfile.getInputStream(zipentry)
  def ret = updateDoc("", is, type, context);

  if (ret < 0) {
    if (ret == -1000) {
      System.err.println("* Document for entry ${zipentry} already exists and overwrite was not specified.")
      println "* Document for entry ${zipentry} already exists and overwrite was not specified.";
    } else if (ret == -2000) {
      System.err.println("* Document for entry ${zipentry} could not be imported with exception (${exception})")
      println "* Document for entry ${zipentry} could not be imported with exception (${exception})";
    } else {
      System.err.println("* Document for entry ${zipentry} could not be imported with error ${ret}.")
      println "* Document for entry ${zipentry} could not be imported with error ${ret}.";
    }
  } else {
    System.out.println("__ Document for entry ${zipentry} has been imported properly: [${finalPageName}].")
    println "* Document for entry ${zipentry} has been imported properly: [[${finalPageName}]]."
  }
}

if (request.get("filename") != null && request.get("confirm") == null) {

println """
{{html clean="false"}}
<script type="text/javascript">
function selectItems(classId, selected)
{
  var docs = document.getElementsByClassName(classId);
  var i;
  for (i = 0; i < docs.length; i++)
  {
    var doc = docs[i];
    doc.checked = selected;
  }
}
</script>

 <form action="" method="post">
 <input type="hidden" name="filename" value="${request.filename}" />
 <input type="hidden" name="confirm" value="1" />
"""

  def counter = 0;
  def time1 = new Date()
  if (request.get("importall") == null) {
    def time2 = new Date()

println """
  <span id="selectDocsActions">
    <a href="javascript:void()" onclick="selectItems('selCheckedDoc', false); return false;" class="Exportlink">Unselect All</a>,
    <a href="javascript:void()" onclick="selectItems('selCheckedDoc', true); return false;" class="Exportlink">Select All</a>
  </span>
  <table border="0" cellspacing="0" cellpadding="0">
"""

    def file = new File(request.get("filename"));
    def zipfile = new ZipFile(file);
    for (zipentry in zipfile.entries()) {
      filename = zipentry.name
      if (!filename.endsWith("package.xml") && !zipentry.isDirectory()) {
        counter++;

println """
      <tr><td><input class="selCheckedDoc" type="checkbox" name="file_${counter}" value="${filename}" checked />${filename}</td></tr>
"""
      }
    }

println """
  </table>
"""

  def dur = time2.getTime() - time1.getTime()

  println "* Duration: $dur"
  } else {

println """
    Import all
    <input type="hidden" name="importall" value="1" />
"""

  }

println """
  <table border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td>Type:</td>
      <td>
        <input type="radio" name="type" value="NOOVERVERSIONS" /> Do Not overwrite with versions
        <input type="radio" name="type" value="NOOVERNOVERSIONS" /> Do Not overwrite without versions
        <br />
        <input type="radio" name="type" value="ADDVERSION" /> Add version
        <input type="radio" name="type" value="OVERVERSIONS" checked /> Overwrite with version
        <input type="radio" name="type" value="OVERNOVERSIONS" /> Overwrite without versions
      </td>
    </tr>
    <tr>
      <td colspan="2" align="center">
        <input type="hidden" name="counter" value="${counter}" />
        <input type="submit" name="Preview" />
      </td>
    </tr>
  </table>
</form>
{{/html}}
"""

} else if (request.get("filename") != null && request.get("confirm") != null) {
  def file = new File(request.get("filename"));

  System.out.println("Start importing file [" + file + "]");

  def zipfile = new ZipFile(file);

  def type = request.get("type");

  def counter = 1;
  if (request.get("importall") == null) {
    def maxcounter = Integer.parseInt(request.counter)

    while (counter <= maxcounter) {
      def filename = request.get("file_${counter}")

      if (filename != null) {
        def zipentry = zipfile.getEntry(filename)
        if (zipentry != null) {
          System.out.println("Import ${counter}/${maxcounter}: " + filename);
          updateDoc(zipfile, zipentry, "", type, context.context)
        }
      }

      counter++;
    }
  } else {
    def maxcounter = zipfile.size()

    for (zipentry in zipfile.entries()) {
      def filename = zipentry.name

      if (!filename.endsWith("package.xml") && !zipentry.isDirectory()) {
        System.out.println("Import ${counter}/${maxcounter}: " + filename);

        updateDoc(zipfile, zipentry, "", type, context.context)
      }

      counter++;
    }
  }

  counter--;
  System.out.println("Finished importing ${counter} documents");
  println "* Finished importing ${counter} documents"
} else {

println """
{{html clean="false"}}
<form action="" method="post">
  <table border="0">
    <tr>
      <td>File to read from:</td><td><input type="text" name="filename" size="60" /></td>
    </tr>
    <tr>
      <td colspan="2" align="center">
        <input type="submit" name="Preview" />
        <input type="checkbox" name="importall" value="1" /> Import all
      </td>
    </tr>
  </table>
</form>
{{/html}}
"""

}
{{/groovy}}