/* global conjur, async */

(function(conjur, async, errback) {
    'use strict';

    var Generic = this.Generic;

    var Policy = this.Policy = function(args) {
        if (!(this instanceof Policy)) {
            return new Policy(args);
        }

        var superArguments = Array.prototype.slice.call(arguments);
        superArguments.unshift('policy');
        Generic.apply(this, superArguments);

        return undefined;
    };

    Policy.prototype = Object.create(Generic.prototype);
    Policy.prototype.constructor = Policy;

    Policy.prototype.fetch = function(callback, customErrback) {
        if (typeof(customErrback) === 'undefined') {
            customErrback = errback; // reset to default
        }

        async.parallel([
            this.resource.bind(this),
            this.ownedResources.bind(this),
            this.allRoles.bind(this)
        ], function(err, results) {
            if (err) {
                return customErrback(err.status);
            }

            callback({
                policy: results[0],
                owned: results[1],
                roles: results[2],
                annotations: results[0].annotations,
                owner: results[0].owner
            });

            return undefined;
        });
    };

}).bind(conjur.models.Record)
(
    conjur,
    async,
    conjur.utils.errback
);