<?php
/** \file scripts\page\menu_syscomp_info.php
 *  \brief DI webinterface menu system component maintenance script.
 *  \author Jack Weeland, Core|Vision
 *  \version $Revision: 26247 $
 *  \date $Date: 2016-02-29 10:40:22 +0100 (Mon, 29 Feb 2016) $
 *
 * This file contains the menu system component maintenance
 *
 */

//=== Menu structure ===

// Check that this page is called with the correct action (to prevent illegal access)
if( !is_valid_action("system_component_new","system_component_duplicate","system_component_change","system_component_info") ) {
  // Redirect page back to login page
  force_logout(_("No valid rights"), "Invalid action: " . current_action(TRUE));
}
  
$page = new MTinfoPage();

//===========================================

// Verify project/rights and log
if(  $page->user_has_rights() ) {
  if( $_SESSION[$_PAGE_INFO['id']]['recall_counter'] ) {
    // recall or return from called page; keep the session info
  }
  else if (is_valid_action("system_component_new")) {
    // new item: generated temporary identifier as index in the array
    $t = gettimeofday(TRUE);
    $_SESSION[$_PAGE_INFO['id']]['syscomp_id']            = "tmp_" . sprintf("%u%06u", $t, ($t - floor($t)) * 1000);
    $_SESSION[$_PAGE_INFO['id']]['syscomp_info']          = array();
    $_SESSION[$_PAGE_INFO['id']]['syscomp_doc']           = array();
    $_SESSION[$_PAGE_INFO['id']]['syscomp_version']       = array();
    $_SESSION[$_PAGE_INFO['id']]['syscomp_version_doc']   = array();
    
    if( is_valid_call("equipment_new","equipment_change") ) {
      $_SESSION[$_PAGE_INFO['id']]['syscomp_info']['device'] = $_SESSION[$_PAGE_INFO['id']]['search']['equipment']['device'];
    }
    else {
      $_SESSION[$_PAGE_INFO['id']]['syscomp_info']['device'] = $_SESSION[$_PAGE_INFO['id']]['defaults']['s&o']['device'];
    }
  }
  else if( is_valid_action("system_component_info","system_component_duplicate","system_component_change") ) {
    // get the identifier from either the command-line or the search screen
    if( isset($_GET['syscomp_id']) ) {
      // set change log identifier from the URL
      $_SESSION[$_PAGE_INFO['id']]['syscomp_id'] = decrypt($_GET['syscomp_id'], "syscomp_id_" . $_SESSION[$_PAGE_INFO['id']]['login']['user']['id']);
    }
    else {
      $_SESSION[$_PAGE_INFO['id']]['syscomp_id'] = $_SESSION[$_PAGE_INFO['id']]['search']['s&o']['syscomp_id'];
    }

    if (isset($_SESSION[$_PAGE_INFO['id']]['syscomp_id'])) {
      $syscomp = db_fetch_system_component($_SESSION[$_PAGE_INFO['id']]['syscomp_id']);
      
      if( $syscomp ) {
        $_SESSION[$_PAGE_INFO['id']]['syscomp_info'] = $syscomp;

        if( is_valid_action("system_component_duplicate") ) {
          // the identifier is invalid, as we are copying the original data
          $_SESSION[$_PAGE_INFO['id']]['syscomp_info']['id'] =
          $_SESSION[$_PAGE_INFO['id']]['syscomp_id']         =  "tmp_copy_" . $syscomp['id'];

          // copy the documents
          $documents = db_fetch_files($syscomp['id'], "syscomp_documenten", FALSE, "ASC");
          foreach( $documents as $doc ) {
            $_SESSION[$_PAGE_INFO['id']]['syscomp_doc'][] = db_duplicate_file($doc);
          }
          // clean-up
          unset($documents);
        }
        else {
          // pre-fetch the documents and other uploads
          $_SESSION[$_PAGE_INFO['id']]['syscomp_doc'] = db_fetch_files($syscomp['id'], "syscomp_documenten", FALSE, "ASC");
        }
        
        // pre-fetch the versions and change log items, with their documents
        $versions = db_search_system_versions($_SESSION[$_PAGE_INFO['id']]['i18n'], $syscomp['id']);
        $_SESSION[$_PAGE_INFO['id']]['syscomp_version']     = array();
        $_SESSION[$_PAGE_INFO['id']]['syscomp_version_doc'] = array();
        if( $versions ) foreach( $versions as $version ) {
          if( is_valid_action("system_component_duplicate") ) {
            $version_id    = "tmp_copy_" . $version['id'];
          }
          else {
            $version_id = $version['id'];
          }

          // Link back to the system component (not fetched by 'db_search_system_versions',
          //  but a version is valid for only one system component: this one
          $version['syscomp'] = $_SESSION[$_PAGE_INFO['id']]['syscomp_id'];

          if( is_valid_action("system_component_duplicate") ) {
            // copy the documents for the version
            $version_doc = array();
            $documents = db_fetch_files($version['id'], "changelog_versie_documenten", FALSE, "ASC");
            foreach( $documents as $doc ) {
             $version_doc[] = db_duplicate_file($doc);
            }
            // clean up
            unset($documents);
            
            // fetch the changelog for the version
            $version['changelog'] = array();
            $version['changelog_doc'] = array();

            // copy the changelog items
            $changelog_items = db_fetch_version_changelog($version['id']);
            if( $changelog_items ) foreach( $changelog_items as $changelog_item ) {
              // save off the identifier; it will be replaced when the items are duplicated
              $changelog_id = "tmp_copy_" . $changelog_item['id'];
              
              // fetch the documents for the original change
              $documents = db_fetch_files($changelog_item['id'], "changelog_versie_change_documenten", FALSE, "ASC");
              $version['changelog_doc'][$changelog_id] = array();
              // copy the documents for this change
              foreach( $documents as $doc ) {
                $version['changelog_doc'][$changelog_id][] = db_duplicate_file($doc);
              }
              // clean-up
              unset($documents);
              
              // link to this system component
              $changelog_item['syscomp'] = $_SESSION[$_PAGE_INFO['id']]['syscomp_id'];
              // copy the links to the equipment types
              $changelog_item['device'] = $version['device'];
              
              // set the new, temporary identifier
              $changelog_item['id'] = $changelog_id;
              $version['changelog'][$changelog_item['id']] = $changelog_item;
            }
            // clean up
            unset($changelog_items);
          }
          else {
            // fetch the documents and change log when needed
            $version_doc = NULL;
            // initialize the change log array
            $version['changelog']     = NULL;
            $version['changelog_doc'] = NULL;
          }

          // store the version info
          $version['id'] = $version_id;
          $_SESSION[$_PAGE_INFO['id']]['syscomp_version'][$version_id]     = $version;
          $_SESSION[$_PAGE_INFO['id']]['syscomp_version_doc'][$version_id] = $version_doc;
          // clean up
          unset($version_doc);
          unset($version['changelog']);
          unset($version['changelog_doc']);
        }
      }
      else {
        // ID not valid!!! => Redirect back to search menu
        header("Location: ?id=" . $_PAGE_INFO['id'] . "&href=page/menu_syscomp_search&action=" . current_action(TRUE));
        trigger_error("System component ID not valid", E_USER_ERROR);
      }
    }
    else {
      // ID not selected
      header("Location: ?id=" . $_PAGE_INFO['id'] . "&href=page/menu_syscomp_search&action=" . current_action(TRUE));
      trigger_error("System component ID not set", E_USER_ERROR);
    }
  }

  // Nested call?
  if( !$_SESSION[$_PAGE_INFO['id']]['recall_counter'] ) {
    $_SESSION[$_PAGE_INFO['id']]['syscomp_info']['return_action'] = $_SESSION[$_PAGE_INFO['id']]['return_action'];
  }

  // Add calendar to header
  $extra_header_HTML = "<script type=\"text/javascript\" src=\"" . JAVA_DIR . "calender.js\"></script>\n";  

  // Show page header
  $y_position = (isset($_SESSION[$_PAGE_INFO['id']]['syscomp_info']['y_position'])) ? ($_SESSION[$_PAGE_INFO['id']]['syscomp_info']['y_position']) : 0;
  print_xml_header($y_position, $extra_header_HTML);

  // Include info content
  include("menu_syscomp_info_content.php");

  // Show page footer
  print_page_footer();
}
else {
  // Redirect page back to login page
  force_logout(_("No valid rights"), "No rights for menu " . $page->menu . ": " . $page->rights);
}

?>