/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Annodex Firefox Extension.
 *
 * The Initial Developer of the Original Code is
 * Commonwealth Scientific and Industrial Research Organisation (CSIRO)
 * Australia.
 * Portions created by the Initial Developer are Copyright (C) 2004-2005
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Andre Pang <andre.pang@csiro.au>
 *   Chris Ford <christophertford@gmail.com> 
 *   Marcin Lubonski <marcin.lubonski@csiro.au>
 *   Michael Martin
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

const PLID        = "CSIRO.au/Oggplay,version=1.0";
const VERSION     = "1.0.0.0";
const PLUGIN_NAME = "Oggplay media player";

// Size values are for unpacked files, in kb
var pluginName;
var pluginSize;
var useAddDir;
var installDir;

var xptName = "nsILibOggPlugin.xpt";
var xptSize = 10;

// wrap everything in a function so it's easier to exit on error
doInstall();

function doInstall() {

  // Initialise the installer
  var error = initInstall(PLUGIN_NAME, PLID, VERSION);
  if (error != SUCCESS) {
    logComment("initInstall() failed: " + error);
    return;
  }

  // Set up platform-specific details
  switch (getPlatform()) {
    case "unix":
      pluginName = "libnpoggplugin.so";
      pluginSize = 2000;
      installDir = getFolder("Current User", "../../plugins");
      useAddDir  = false;
      break;
    case "windows":
      xptName = "npliboggplugin.xpt";
      pluginName = "npliboggplugin.dll";
      pluginSize = 2000;
      installDir = getFolder("Plugins");
      useAddDir  = false;
      break;

    case "mac":
      pluginName = "liboggplay.plugin";
      pluginSize = 2000;
      installDir = getFolder("MacOSX User Internet PlugIn");
      useAddDir  = true;
      break;

    default:
      alert("You are attempting to install the Oggplay plug-in on " +
            "an unsupported platform.\n" +
            "Please email annodex-dev@lists.annodex.net for assistance.");
  }

  // Check if there is enough disk space to install the plugin
  if (!verifyDiskSpace(installDir, pluginSize + xptSize)) {
    alert("There is not enough disk space to install the Oggplay plug-in.");
    cancelInstall(INSUFFICIENT_DISK_SPACE);
    return;
  }

  // Copy the plugin files to the installation directory
  if (useAddDir) {
    error = addDirectory(PLID, VERSION, pluginName, installDir, pluginName);
  } else {
    error = addFile(PLID, VERSION, pluginName, installDir, null);
  }
  if (error != SUCCESS) {
    alert("Oggplay plug-in installation failed; could not copy plug-in files to "
          + installDir);
    logComment("Could not add " + pluginName + " to " + installDir + ":" + error);
    cancelInstall(error);
    return;
  }

  error = addFile(PLID, VERSION, xptName, installDir, null);
  if (error != SUCCESS) {
    alert("Oggplay plug-in installation failed; could not copy plug-in files to "
          + installDir);
    logComment("Could not add " + xptName + " to " + installDir + ":" + error);
    cancelInstall(error);
    return;
  }

  // Perform the install
  error = performInstall();
  if (error != SUCCESS) {
    logComment("performInstall() failed: " + error);
  } else {
    refreshPlugins(true);
    alert("Completed installation of Oggplay plug-in");
  }
}


// -- Utility functions --
function verifyDiskSpace(dirPath, spaceRequired) {
  var spaceAvailable;

  // Get the available disk space on the given path
  spaceAvailable = fileGetDiskSpaceAvailable(dirPath);

  // Convert the available disk space into kilobytes
  spaceAvailable = parseInt(spaceAvailable / 1024);

  // Do the verification
  if (spaceAvailable < spaceRequired) {
    logComment("Insufficient disk space to install Oggplay plug-in:");
    logComment("  destination path: " + dirPath);
    logComment("  required : " + spaceRequired + " kb");
    logComment("  available: " + spaceAvailable + " kb");
    return false;
  }
  return true;
}

function getPlatform() {
  var platformString = new String(Install.platform);

  if (!platformString.search(/^Macintosh/))
    return "mac";
  else if (!platformString.search(/^Win/))
    return "windows";
  else
    return "unix";
}