//////////////////////////////////////////////////////////////////////////
//
// pgAdmin 4 - PostgreSQL Tools
//
// Copyright (C) 2013 - 2017, The pgAdmin Development Team
// This software is released under the PostgreSQL Licence
//
//////////////////////////////////////////////////////////////////////////

define(['jquery', 'underscore', 'underscore.string'],
  function ($, _, S) {

    var check_node_visibility = function (pgBrowser, node_type) {
      if(_.isUndefined(node_type) || _.isNull(node_type)) {
        return true;
      }

      // Target actual node instead of collection.
      // If node is disabled then there is no meaning of
      // adding collection node menu
      if(S.startsWith(node_type, "coll-")) {
        node_type = node_type.replace("coll-", "")
      }

      // Exclude non-applicable nodes
      var nodes_not_supported = [
        "server-group", "server", "catalog_object_column"
      ];
      if(_.indexOf(nodes_not_supported, node_type) >= 0) {
        return true;
      }

      // If we have already fetched preference earlier then pick
      // it from our cache object
      if (_.has(pgBrowser.node_preference_data, node_type)) {
        return pgBrowser.node_preference_data[node_type].value
      }

      var preference = pgBrowser.get_preference(
        'browser', 'show_node_' + node_type
      );

      // Save it for future use, kind of caching
      if(!_.isUndefined(preference) && !_.isNull(preference)) {
        pgBrowser.node_preference_data[node_type] = preference;
        return preference.value;
      } else {
        return true;
      }
    }

  return check_node_visibility;
});