# Source: vertx-auth-common-js/chain_auth.js

    /*
     * Copyright 2014 Red Hat, Inc.
     *
     * Red Hat licenses this file to you under the Apache License, version 2.0
     * (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.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
     * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
     * License for the specific language governing permissions and limitations
     * under the License.
     */

    /** @module vertx-auth-common-js/chain_auth */
    var utils = require('vertx-js/util/utils');
    var User = require('vertx-auth-common-js/user');
    var AuthProvider = require('vertx-auth-common-js/auth_provider');

    var io = Packages.io;
    var JsonObject = io.vertx.core.json.JsonObject;
    var JChainAuth = Java.type('io.vertx.ext.auth.ChainAuth');

    /**
     Chain several auth providers as if they were one. This is useful for cases where one want to authenticate across
     several providers, for example, database and fallback to passwd file.

     @class
    */
    var ChainAuth = function(j_val) {

      var j_chainAuth = j_val;
      var that = this;
      AuthProvider.call(this, j_val);

      /**
       Authenticate a user.
       <p>
       The first argument is a JSON object containing information for authenticating the user. What this actually contains
       depends on the specific implementation. In the case of a simple username/password based
       authentication it is likely to contain a JSON object with the following structure:
       <pre>
         {
           "username": "tim",
           "password": "mypassword"
         }
       </pre>
       For other types of authentication it contain different information - for example a JWT token or OAuth bearer token.
       <p>
       If the user is successfully authenticated a {@link User} object is passed to the handler in an {@link AsyncResult}.
       The user object can then be used for authorisation.

       @public
       @param authInfo {Object} The auth information
       @param resultHandler {function} The result handler
       */
      this.authenticate = function(authInfo, resultHandler) {
        var __args = arguments;
        if (__args.length === 2 && (typeof __args[0] === 'object' && __args[0] != null) && typeof __args[1] === 'function') {
          j_chainAuth["authenticate(io.vertx.core.json.JsonObject,io.vertx.core.Handler)"](utils.convParamJsonObject(authInfo), function(ar) {
          if (ar.succeeded()) {
            resultHandler(utils.convReturnVertxGen(User, ar.result()), null);
          } else {
            resultHandler(null, ar.cause());
          }
        });
        } else throw new TypeError('function invoked with invalid arguments');
      };

      /**
       Appends a auth provider to the chain.

       @public
       @param other {AuthProvider} auth provider
       @return {ChainAuth} self
       */
      this.append = function(other) {
        var __args = arguments;
        if (__args.length === 1 && typeof __args[0] === 'object' && __args[0]._jdel) {
          j_chainAuth["append(io.vertx.ext.auth.AuthProvider)"](other._jdel);
          return that;
        } else throw new TypeError('function invoked with invalid arguments');
      };

      /**
       Removes a provider from the chain.

       @public
       @param other {AuthProvider} provider to remove
       @return {boolean} true if provider was removed, false if non existent in the chain.
       */
      this.remove = function(other) {
        var __args = arguments;
        if (__args.length === 1 && typeof __args[0] === 'object' && __args[0]._jdel) {
          return j_chainAuth["remove(io.vertx.ext.auth.AuthProvider)"](other._jdel);
        } else throw new TypeError('function invoked with invalid arguments');
      };

      /**
       Clears the chain.

       @public

       */
      this.clear = function() {
        var __args = arguments;
        if (__args.length === 0) {
          j_chainAuth["clear()"]();
        } else throw new TypeError('function invoked with invalid arguments');
      };

      // A reference to the underlying Java delegate
      // NOTE! This is an internal API and must not be used in user code.
      // If you rely on this property your code is likely to break if we change it / remove it without warning.
      this._jdel = j_chainAuth;
    };

    ChainAuth._jclass = utils.getJavaClass("io.vertx.ext.auth.ChainAuth");
    ChainAuth._jtype = {
      accept: function(obj) {
        return ChainAuth._jclass.isInstance(obj._jdel);
      },
      wrap: function(jdel) {
        var obj = Object.create(ChainAuth.prototype, {});
        ChainAuth.apply(obj, arguments);
        return obj;
      },
      unwrap: function(obj) {
        return obj._jdel;
      }
    };
    ChainAuth._create = function(jdel) {
      var obj = Object.create(ChainAuth.prototype, {});
      ChainAuth.apply(obj, arguments);
      return obj;
    }
    /**
     Create a Chainable Auth Provider auth provider

     @memberof module:vertx-auth-common-js/chain_auth

     @return {ChainAuth} the auth provider
     */
    ChainAuth.create = function() {
      var __args = arguments;
      if (__args.length === 0) {
        return utils.convReturnVertxGen(ChainAuth, JChainAuth["create()"]());
      } else throw new TypeError('function invoked with invalid arguments');
    };

    module.exports = ChainAuth;