/*
    Copyright 2012 Rustici Software

    Licensed 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.
*/

/**
TinCan client library

@module TinCan
@submodule TinCan.StatementsResult
**/
(function () {
    "use strict";

    /**
    @class TinCan.StatementsResult
    @constructor
    @param {Object} options Configuration used to initialize.
        @param {Array} options.statements Actor of statement
        @param {String} options.more URL to fetch more data
    **/
    var StatementsResult = TinCan.StatementsResult = function (cfg) {
        this.log("constructor");

        /**
        @property statements
        @type Array
        */
        this.statements = null;

        /**
        @property more
        @type String
        */
        this.more = null;

        this.init(cfg);
    };

    StatementsResult.prototype = {
        /**
        @property LOG_SRC
        */
        LOG_SRC: "StatementsResult",

        /**
        @method log
        */
        log: TinCan.prototype.log,

        /**
        @method init
        @param {Object} [options] Configuration used to initialize
        */
        init: function (cfg) {
            this.log("init");

            cfg = cfg || {};

            if (cfg.hasOwnProperty("statements")) {
                this.statements = cfg.statements;
            }
            if (cfg.hasOwnProperty("more")) {
                this.more = cfg.more;
            }
        }
    };

    /**
    @method fromJSON
    @return {Object} Agent
    @static
    */
    StatementsResult.fromJSON = function (resultJSON) {
        StatementsResult.prototype.log("fromJSON");
        var _result,
            stmts = [],
            stmt,
            i
        ;

        try {
            _result = JSON.parse(resultJSON);
        } catch (parseError) {
            StatementsResult.prototype.log("fromJSON - JSON.parse error: " + parseError);
        }

        if (_result) {
            for (i = 0; i < _result.statements.length; i += 1) {
                try {
                    stmt = new TinCan.Statement (_result.statements[i], 4);
                } catch (error) {
                    StatementsResult.prototype.log("fromJSON - statement instantiation failed: " + error + " (" + JSON.stringify(_result.statements[i]) + ")");

                    stmt = new TinCan.Statement (
                        {
                            id: _result.statements[i].id
                        },
                        4
                    );
                }

                stmts.push(stmt);
            }
            _result.statements = stmts;
        }

        return new StatementsResult (_result);
    };
}());