/* 

 *  Copyright 2012 Institut de recherche et d'innovation 

 *  contributor(s) : Samuel Huron, Raphael Velt

 *   

 *  contact@iri.centrepompidou.fr

 *  http://www.iri.centrepompidou.fr 

 *   

 *  This software is a computer program whose purpose is to show and add annotations on a video .

 *  This software is governed by the CeCILL-C license under French law and

 *  abiding by the rules of distribution of free software. You can  use, 

 *  modify and/ or redistribute the software under the terms of the CeCILL-C

 *  license as circulated by CEA, CNRS and INRIA at the following URL

 *  "http://www.cecill.info". 

 *  

 *  The fact that you are presently reading this means that you have had

 *  knowledge of the CeCILL-C license and that you accept its terms.

*/

/* Declaring the Renkan Namespace Rkns and Default values */

Rkns = {

    _MIN_DRAG_DISTANCE: 2,

    _NODE_RADIUS: 20,

    _NODE_FONT_SIZE: 14,

    _ARROW_LENGTH: 20,

    _ARROW_WIDTH: 15,

    _RENDER: 1,

    _SAVE: 2,

    _RENDER_AND_SAVE: 3

}

Rkns.$ = jQuery;

Rkns._ = _;

Rkns.Bins = {}

Rkns.Bins._Base = function(_renkan, _opts) {

    if (typeof _renkan !== "undefined") {

        this.renkan = _renkan;

        this.renkan.$.find(".Rk-Bin-Main").hide();

        this.$ = Rkns.$('<li>')

            .addClass("Rk-Bin")

            .appendTo(_renkan.$.find(".Rk-Bin-List"));

        this.title_$ = Rkns.$('<h2>')

            .addClass("Rk-Bin-Title")

            .appendTo(this.$);

        this.main_$ = Rkns.$('<div>')

            .addClass("Rk-Bin-Main")

            .appendTo(this.$);

        this.renkan.resizeBins();

    }

}

/* Point of entry */

Rkns.Renkan = function(_opts) {

    if (typeof _opts.remotemodel !== "string") {

        _opts.remotemodel = "FullJson";

    }

    if (typeof _opts.language !== "string" || typeof Rkns.i18n[_opts.language] == "undefined") {

        _opts.language = "en";

    }

    if (typeof _opts.container !== "string") {

        _opts.container = "renkan";

    }

    if (typeof _opts.search !== "object" || !_opts.search) {

        _opts.search = [];

    }

    }

    this.$ = Rkns.$("#" + _opts.container);

    this.$.html(this.template());

    this.tabs = [];

    this.selected_bin_item = undefined;

    this.mousedown = false;

    var _this = this;

    this.$.mouseup(function() {

        _this.selected_bin_item = undefined;

    });

    if (!_opts.search.length) {

        this.$.find(".Rk-Search-Form").detach();

    } else {

        var _tmpl = Rkns._.template('<option value="<%= name %>"><%= name %></option>');

        this.$.find(".Rk-Search-Select").html(

            Rkns._(_opts.search).map(function(_name) {

                return _tmpl({name:_name});

            }).join("")

        );

    }

    this.$.find(".Rk-Search-Form").submit(function() {

        _this.tabs.push(

            new Rkns.Bins[_this.$.find(".Rk-Search-Select").val()](

                _this,

                {

                    search: _this.$.find(".Rk-Search-Input").val()

                }

            )

        );

        return false;

    });

    this.$.find(".Rk-Bins")

        .click(function(_e) {

            if (_e.target.className == "Rk-Bin-Title") {

                var _mainDiv = Rkns.$(_e.target).siblings(".Rk-Bin-Main");

                if (_mainDiv.is(":hidden")) {

                    _this.$.find(".Rk-Bin-Main").slideUp();

                    _mainDiv.slideDown();

                }

            }

        }).mousedown(function(_e) {

            var _t = Rkns.$(_e.target);

            while (!_t.is(".Rk-Bins,.Rk-Bin-Item")) {

                _t = _t.parent();

            }

            if (_t.is(".Rk-Bin-Item")) {

                _this.selected_bin_item = {

                    uri : $(_t).attr("data-uri"),

                    title : $(_t).attr("data-title"),

                    description : $(_t).attr("data-description")

                }

                return false;

            }

        });

    Rkns.$(window).resize(function() {

        _this.resizeBins();

    });

}

Rkns.Renkan.prototype.template = Rkns._.template(

    '<div class="Rk-Bins">'

    + '<form class="Rk-Search-Form"><input class="Rk-Search-Input" type="search" placeholder="Search" /><select class="Rk-Search-Select"></select></form>'

    + '<ul class="Rk-Bin-List"></ul></div><div class="Rk-Render"></div>'

);

Rkns.Renkan.prototype.resizeBins = function() {

    var _titles = this.$.find(".Rk-Bin-Title"),

        _d = _titles.length * _titles.outerHeight() + this.$.find(".Rk-Search-Form").outerHeight();

    this.$.find(".Rk-Bin-Main").css({

        height: this.$.find(".Rk-Bins").height() - _d

    });

}

/* Utility functions */

Rkns.Utils = {

    _ID_AUTO_INCREMENT : 0,

    _ID_BASE : (function(_d) {

        function pad(n){return n<10 ? '0'+n : n}

        function fillrand(n) {

            var _res = ''

            for (var i=0; i<n; i++) {

                _res += Math.floor(16*Math.random()).toString(16);

            }

            return _res;

        }

        return _d.getUTCFullYear() + '-'  

            + pad(_d.getUTCMonth()+1) + '-'  

            + pad(_d.getUTCDate()) + '-'

            + fillrand(16);

    })(new Date()),

    getUID : function(_base) {

        var _n = (++this._ID_AUTO_INCREMENT).toString(16),

            _base = (typeof _base === "undefined" ? "" : _base + "-" );

        while (_n.length < 4) {

            _n = '0' + _n

        }

        return _base + this._ID_BASE + '-' + _n;

    },

    inherit : function(_baseClass, _callbefore) {

        var _class = function() {

            if (typeof _callbefore === "function") {

                _callbefore.apply(this, Array.prototype.slice.call(arguments, 0));

            }

            if (typeof _baseClass.prototype._init !== "function") {

                _baseClass.prototype._init = function() {}

            }

            _baseClass.apply(this, Array.prototype.slice.call(arguments, 0));

            this._init.apply(this, Array.prototype.slice.call(arguments, 0));

        }

        _class.prototype = new _baseClass();

        return _class;

    }

}