/**
 * @license AngularJS v1.0.7
 * (c) 2010-2012 Google, Inc. http://angularjs.org
 * License: MIT
 */
(function (window, angular, undefined) {
    'use strict';

    /**
     * @ngdoc overview
     * @name ngResource
     * @description
     */

    /**
     * @ngdoc object
     * @name ngResource.$resource
     * @requires $http
     *
     * @description
     * A factory which creates a resource object that lets you interact with
     * [RESTful](http://en.wikipedia.org/wiki/Representational_State_Transfer) server-side data sources.
     *
     * The returned resource object has action methods which provide high-level behaviors without
     * the need to interact with the low level {@link ng.$http $http} service.
     *
     * # Installation
     * To use $resource make sure you have included the `angular-resource.js` that comes in Angular
     * package. You can also find this file on Google CDN, bower as well as at
     * {@link http://code.angularjs.org/ code.angularjs.org}.
     *
     * Finally load the module in your application:
     *
     *        angular.module('app', ['ngResource']);
     *
     * and you are ready to get started!
     *
     * @param {string} url A parameterized URL template with parameters prefixed by `:` as in
     *   `/user/:username`. If you are using a URL with a port number (e.g.
     *   `http://example.com:8080/api`), you'll need to escape the colon character before the port
     *   number, like this: `$resource('http://example.com\\:8080/api')`.
     *
     * @param {Object=} paramDefaults Default values for `url` parameters. These can be overridden in
     *   `actions` methods.
     *
     *   Each key value in the parameter object is first bound to url template if present and then any
     *   excess keys are appended to the url search query after the `?`.
     *
     *   Given a template `/path/:verb` and parameter `{verb:'greet', salutation:'Hello'}` results in
     *   URL `/path/greet?salutation=Hello`.
     *
     *   If the parameter value is prefixed with `@` then the value of that parameter is extracted from
     *   the data object (useful for non-GET operations).
     *
     * @param {Object.<Object>=} actions Hash with declaration of custom action that should extend the
     *   default set of resource actions. The declaration should be created in the following format:
     *
     *       {action1: {method:?, params:?, isArray:?},
 *        action2: {method:?, params:?, isArray:?},
 *        ...}
     *
     *   Where:
     *
     *   - `action` – {string} – The name of action. This name becomes the name of the method on your
     *     resource object.
     *   - `method` – {string} – HTTP request method. Valid methods are: `GET`, `POST`, `PUT`, `DELETE`,
     *     and `JSONP`
     *   - `params` – {object=} – Optional set of pre-bound parameters for this action.
     *   - isArray – {boolean=} – If true then the returned object for this action is an array, see
     *     `returns` section.
     *
     * @returns {Object} A resource "class" object with methods for the default set of resource actions
     *   optionally extended with custom `actions`. The default set contains these actions:
     *
     *       { 'get':    {method:'GET'},
 *         'save':   {method:'POST'},
 *         'query':  {method:'GET', isArray:true},
 *         'remove': {method:'DELETE'},
 *         'delete': {method:'DELETE'} };
     *
     *   Calling these methods invoke an {@link ng.$http} with the specified http method,
     *   destination and parameters. When the data is returned from the server then the object is an
     *   instance of the resource class. The actions `save`, `remove` and `delete` are available on it
     *   as  methods with the `$` prefix. This allows you to easily perform CRUD operations (create,
     *   read, update, delete) on server-side data like this:
     *   <pre>
     var User = $resource('/user/:userId', {userId:'@id'});
     var user = User.get({userId:123}, function() {
          user.abc = true;
          user.$save();
        });
     </pre>
     *
     *   It is important to realize that invoking a $resource object method immediately returns an
     *   empty reference (object or array depending on `isArray`). Once the data is returned from the
     *   server the existing reference is populated with the actual data. This is a useful trick since
     *   usually the resource is assigned to a model which is then rendered by the view. Having an empty
     *   object results in no rendering, once the data arrives from the server then the object is
     *   populated with the data and the view automatically re-renders itself showing the new data. This
     *   means that in most case one never has to write a callback function for the action methods.
     *
     *   The action methods on the class object or instance object can be invoked with the following
     *   parameters:
     *
     *   - HTTP GET "class" actions: `Resource.action([parameters], [success], [error])`
     *   - non-GET "class" actions: `Resource.action([parameters], postData, [success], [error])`
     *   - non-GET instance actions:  `instance.$action([parameters], [success], [error])`
     *
     *
     * @example
     *
     * # Credit card resource
     *
     * <pre>
     // Define CreditCard class
     var CreditCard = $resource('/user/:userId/card/:cardId',
     {userId:123, cardId:'@id'}, {
       charge: {method:'POST', params:{charge:true}}
      });

     // We can retrieve a collection from the server
     var cards = CreditCard.query(function() {
       // GET: /user/123/card
       // server returns: [ {id:456, number:'1234', name:'Smith'} ];

       var card = cards[0];
       // each item is an instance of CreditCard
       expect(card instanceof CreditCard).toEqual(true);
       card.name = "J. Smith";
       // non GET methods are mapped onto the instances
       card.$save();
       // POST: /user/123/card/456 {id:456, number:'1234', name:'J. Smith'}
       // server returns: {id:456, number:'1234', name: 'J. Smith'};

       // our custom method is mapped as well.
       card.$charge({amount:9.99});
       // POST: /user/123/card/456?amount=9.99&charge=true {id:456, number:'1234', name:'J. Smith'}
     });

     // we can create an instance as well
     var newCard = new CreditCard({number:'0123'});
     newCard.name = "Mike Smith";
     newCard.$save();
     // POST: /user/123/card {number:'0123', name:'Mike Smith'}
     // server returns: {id:789, number:'01234', name: 'Mike Smith'};
     expect(newCard.id).toEqual(789);
     * </pre>
     *
     * The object returned from this function execution is a resource "class" which has "static" method
     * for each action in the definition.
     *
     * Calling these methods invoke `$http` on the `url` template with the given `method` and `params`.
     * When the data is returned from the server then the object is an instance of the resource type and
     * all of the non-GET methods are available with `$` prefix. This allows you to easily support CRUD
     * operations (create, read, update, delete) on server-side data.

     <pre>
     var User = $resource('/user/:userId', {userId:'@id'});
     var user = User.get({userId:123}, function() {
       user.abc = true;
       user.$save();
     });
     </pre>
     *
     * It's worth noting that the success callback for `get`, `query` and other method gets passed
     * in the response that came from the server as well as $http header getter function, so one
     * could rewrite the above example and get access to http headers as:
     *
     <pre>
     var User = $resource('/user/:userId', {userId:'@id'});
     User.get({userId:123}, function(u, getResponseHeaders){
       u.abc = true;
       u.$save(function(u, putResponseHeaders) {
         //u => saved user object
         //putResponseHeaders => $http header getter
       });
     });
     </pre>

     * # Buzz client

     Let's look at what a buzz client created with the `$resource` service looks like:
     <doc:example>
     <doc:source jsfiddle="false">
     <script>
     function BuzzController($resource) {
           this.userId = 'googlebuzz';
           this.Activity = $resource(
             'https://www.googleapis.com/buzz/v1/activities/:userId/:visibility/:activityId/:comments',
             {alt:'json', callback:'JSON_CALLBACK'},
             {get:{method:'JSONP', params:{visibility:'@self'}}, replies: {method:'JSONP', params:{visibility:'@self', comments:'@comments'}}}
     );
     }

     BuzzController.prototype = {
           fetch: function() {
             this.activities = this.Activity.get({userId:this.userId});
           },
           expandReplies: function(activity) {
             activity.replies = this.Activity.replies({userId:this.userId, activityId:activity.id});
           }
         };
     BuzzController.$inject = ['$resource'];
     </script>

     <div ng-controller="BuzzController">
     <input ng-model="userId"/>
     <button ng-click="fetch()">fetch</button>
     <hr/>
     <div ng-repeat="item in activities.data.items">
     <h1 style="font-size: 15px;">
     <img src="{{item.actor.thumbnailUrl}}" style="max-height:30px;max-width:30px;"/>
     <a href="{{item.actor.profileUrl}}">{{item.actor.name}}</a>
     <a href ng-click="expandReplies(item)" style="float: right;">Expand replies: {{item.links.replies[0].count}}</a>
     </h1>
     {{item.object.content | html}}
     <div ng-repeat="reply in item.replies.data.items" style="margin-left: 20px;">
     <img src="{{reply.actor.thumbnailUrl}}" style="max-height:30px;max-width:30px;"/>
     <a href="{{reply.actor.profileUrl}}">{{reply.actor.name}}</a>: {{reply.content | html}}
     </div>
     </div>
     </div>
     </doc:source>
     <doc:scenario>
     </doc:scenario>
     </doc:example>
     */
    angular.module('ngResource', ['ng']).
        factory('$resource', ['$http', '$parse', function ($http, $parse) {
            var DEFAULT_ACTIONS = {
                'get': {method: 'GET'},
                'save': {method: 'POST'},
                'query': {method: 'GET', isArray: true},
                'remove': {method: 'DELETE'},
                'delete': {method: 'DELETE'}
            };
            var noop = angular.noop,
                forEach = angular.forEach,
                extend = angular.extend,
                copy = angular.copy,
                isFunction = angular.isFunction,
                getter = function (obj, path) {
                    return $parse(path)(obj);
                };

            /**
             * We need our custom method because encodeURIComponent is too aggressive and doesn't follow
             * http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path
             * segments:
             *    segment       = *pchar
             *    pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
             *    pct-encoded   = "%" HEXDIG HEXDIG
             *    unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
             *    sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
             *                     / "*" / "+" / "," / ";" / "="
             */
            function encodeUriSegment(val) {
                return encodeUriQuery(val, true).
                    replace(/%26/gi, '&').
                    replace(/%3D/gi, '=').
                    replace(/%2B/gi, '+');
            }


            /**
             * This method is intended for encoding *key* or *value* parts of query component. We need a custom
             * method becuase encodeURIComponent is too agressive and encodes stuff that doesn't have to be
             * encoded per http://tools.ietf.org/html/rfc3986:
             *    query       = *( pchar / "/" / "?" )
             *    pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
             *    unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
             *    pct-encoded   = "%" HEXDIG HEXDIG
             *    sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
             *                     / "*" / "+" / "," / ";" / "="
             */
            function encodeUriQuery(val, pctEncodeSpaces) {
                return encodeURIComponent(val).
                    replace(/%40/gi, '@').
                    replace(/%3A/gi, ':').
                    replace(/%24/g, '$').
                    replace(/%2C/gi, ',').
                    replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));
            }

            function Route(template, defaults) {
                this.template = template = template + '#';
                this.defaults = defaults || {};
                var urlParams = this.urlParams = {};
                forEach(template.split(/\W/), function (param) {
                    if (param && (new RegExp("(^|[^\\\\]):" + param + "\\W").test(template))) {
                        urlParams[param] = true;
                    }
                });
                this.template = template.replace(/\\:/g, ':');
            }

            Route.prototype = {
                url: function (params) {
                    var self = this,
                        url = this.template,
                        val,
                        encodedVal;

                    params = params || {};
                    forEach(this.urlParams, function (_, urlParam) {
                        val = params.hasOwnProperty(urlParam) ? params[urlParam] : self.defaults[urlParam];
                        if (angular.isDefined(val) && val !== null) {
                            encodedVal = encodeUriSegment(val);
                            url = url.replace(new RegExp(":" + urlParam + "(\\W)", "g"), encodedVal + "$1");
                        } else {
                            url = url.replace(new RegExp("(\/?):" + urlParam + "(\\W)", "g"), function (match, leadingSlashes, tail) {
                                if (tail.charAt(0) == '/') {
                                    return tail;
                                } else {
                                    return leadingSlashes + tail;
                                }
                            });
                        }
                    });
                    url = url.replace(/\/?#$/, '');
                    var query = [];
                    forEach(params, function (value, key) {
                        if (!self.urlParams[key]) {
                            query.push(encodeUriQuery(key) + '=' + encodeUriQuery(value));
                        }
                    });
                    query.sort();
                    url = url.replace(/\/*$/, '');
                    return url + (query.length ? '?' + query.join('&') : '');
                }
            };


            function ResourceFactory(url, paramDefaults, actions) {
                var route = new Route(url);

                actions = extend({}, DEFAULT_ACTIONS, actions);

                function extractParams(data, actionParams) {
                    var ids = {};
                    actionParams = extend({}, paramDefaults, actionParams);
                    forEach(actionParams, function (value, key) {
                        ids[key] = value.charAt && value.charAt(0) == '@' ? getter(data, value.substr(1)) : value;
                    });
                    return ids;
                }

                function Resource(value) {
                    copy(value || {}, this);
                }

                forEach(actions, function (action, name) {
                    action.method = angular.uppercase(action.method);
                    var hasBody = action.method == 'POST' || action.method == 'PUT' || action.method == 'PATCH';
                    Resource[name] = function (a1, a2, a3, a4) {
                        var params = {};
                        var data;
                        var success = noop;
                        var error = null;
                        switch (arguments.length) {
                            case 4:
                                error = a4;
                                success = a3;
                            //fallthrough
                            case 3:
                            case 2:
                                if (isFunction(a2)) {
                                    if (isFunction(a1)) {
                                        success = a1;
                                        error = a2;
                                        break;
                                    }

                                    success = a2;
                                    error = a3;
                                    //fallthrough
                                } else {
                                    params = a1;
                                    data = a2;
                                    success = a3;
                                    break;
                                }
                            case 1:
                                if (isFunction(a1)) success = a1;
                                else if (hasBody) data = a1;
                                else params = a1;
                                break;
                            case 0:
                                break;
                            default:
                                throw "Expected between 0-4 arguments [params, data, success, error], got " +
                                    arguments.length + " arguments.";
                        }

                        var value = this instanceof Resource ? this : (action.isArray ? [] : new Resource(data));
                        $http({
                            method: action.method,
                            url: route.url(extend({}, extractParams(data, action.params || {}), params)),
                            data: data
                        }).then(function (response) {
                                var data = response.data;

                                if (data) {
                                    if (action.isArray) {
                                        value.length = 0;
                                        forEach(data, function (item) {
                                            value.push(new Resource(item));
                                        });
                                    } else {
                                        copy(data, value);
                                    }
                                }
                                (success || noop)(value, response.headers);
                            }, error);

                        return value;
                    };


                    Resource.prototype['$' + name] = function (a1, a2, a3) {
                        var params = extractParams(this),
                            success = noop,
                            error;

                        switch (arguments.length) {
                            case 3:
                                params = a1;
                                success = a2;
                                error = a3;
                                break;
                            case 2:
                            case 1:
                                if (isFunction(a1)) {
                                    success = a1;
                                    error = a2;
                                } else {
                                    params = a1;
                                    success = a2 || noop;
                                }
                            case 0:
                                break;
                            default:
                                throw "Expected between 1-3 arguments [params, success, error], got " +
                                    arguments.length + " arguments.";
                        }
                        var data = hasBody ? this : undefined;
                        Resource[name].call(this, params, data, success, error);
                    };
                });

                Resource.bind = function (additionalParamDefaults) {
                    return ResourceFactory(url, extend({}, paramDefaults, additionalParamDefaults), actions);
                };

                return Resource;
            }

            return ResourceFactory;
        }]);


})(window, window.angular);