/* 

 *  Copyright 2012 Institut de recherche et d'innovation 

 *  contributor(s) : Yves-Marie Haussonne, Raphael Velt, Samuel Huron

 *   

 *  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 */

if (typeof Rkns !== "object") {

    Rkns = {}

}

Rkns.$ = jQuery;

Rkns._ = _;

Rkns._BaseBin = 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_icon_$ = Rkns.$('<span>')

            .addClass("Rk-Bin-Title-Icon")

            .appendTo(this.$);

        var _this = this;

        Rkns.$('<span>')

            .addClass("Rk-Bin-Close")

            .html('×')

            .appendTo(this.$)

            .click(function() {

                _this.destroy();

            });

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

            .addClass("Rk-Bin-Title")

            .appendTo(this.$);

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

            .addClass("Rk-Bin-Main")

            .appendTo(this.$);

        this.title_$.html(_opts.title || '(new bin)');

        this.renkan.resizeBins();

    }

}

Rkns._BaseBin.prototype.destroy = function() {

    this.$.detach();

    this.renkan.resizeBins();

}

/* Point of entry */

Rkns.Renkan = function(_opts) {

    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.project = new Rkns.Models.Project();

    this.language = _opts.language;

    this.l10n = Rkns.i18n[_opts.language];

    if (typeof _opts.user_id !== "undefined") {

        this.current_user = _opts.user_id;

    }

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

    this.$

        .addClass("Rk-Main")

        .html(this.template());

    this.renderer = new Rkns.Renderer.Scene(this);

    this.tabs = [];

    this.search_engines = [];

    this.selected_bin_item = undefined;

    var _this = this;

    this.$.mouseup(function() {

        _this.selected_bin_item = undefined;

        _this.$.find(".Rk-Bin-Item.dragging").removeClass("dragging");

    });

    if (!_opts.search.length) {

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

    } else {

        var _tmpl = Rkns._.template('<li class="<%= className %>" data-key="<%= key %>"><%= title %></li>'),

            _select = this.$.find(".Rk-Search-List"),

            _input = this.$.find(".Rk-Search-Input")

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

        Rkns._(_opts.search).each(function(_search, _key) {

            var _searchObj = new _search.type(_this, _search);

            _this.search_engines.push(_searchObj);

        });

        _select.html(

            Rkns._(this.search_engines).map(function(_search, _key) {

                return _tmpl({

                    key: _key,

                    title: _search.getSearchTitle(),

                    className: _search.getBgClass()

                });

            }).join("")

        );

        _select.find("li").click(function() {

            var _el = Rkns.$(this);

            _this.setSearchEngine(_el.attr("data-key"));

            _form.submit();

        });

        _form.submit(function() {

            if (_input.val()) {

                var _search = _this.search_engine;

                _search.search(_input.val());

            }

            return false;

        });

        this.$.find(".Rk-Search-Current").mouseenter(

            function() { _select.slideDown(); }

        );

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

            function() { _select.slideUp(); }

        );

        this.setSearchEngine(0);

    }

    Rkns._(_opts.bins).each(function(_bin) {

        _this.tabs.push(new _bin.bin(_this, _bin));

    })

    /* The bins are not yet populated, but we want to bind dragging functions

     * here, as it will be easier than in the bins. Therefore, we bind to Rk-Bins

     * and look where the click was. */

    function findItem(_event) {

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

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

            _t = _t.parent();

        }

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

            return _t

        } else {

            return null;

        }

    }

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

        .click(function(_e) {

            if (Rkns.$(_e.target).is(".Rk-Bin-Title,.Rk-Bin-Title-Icon")) {

                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 = findItem(_e);

            if (_t) {

                _t.addClass("dragging");

                _this.selected_bin_item = {

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

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

                }

                return false;

            }

        }).mouseover(function(_e) {

            var _t = findItem(_e);

            if (_t && $(_t).attr("data-uri")) {

                var _models = _this.project.get("nodes").where({

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

                });

                Rkns._(_models).each(function(_model) {

                    _this.renderer.highlightModel(_model);

                });

            }

        }).mouseout(function() {

            _this.renderer.unhighlightAll();

        });

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

        _this.resizeBins();

    });

}

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

    '<div class="Rk-Title"><h1>Hyper Plateau</h1></div><div class="Rk-Bins">'

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

    + '<div class="Rk-Search-Select"><div class="Rk-Search-Current"></div><ul class="Rk-Search-List"></ul></div>'

    + '<input type="submit" value="" class="Rk-Search-Submit" /></form>'

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

);

Rkns.Renkan.prototype.setSearchEngine = function(_key) {

    this.search_engine = this.search_engines[_key];

    this.$.find(".Rk-Search-Current").attr("class","Rk-Search-Current " + this.search_engine.getBgClass());

}

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

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

    this.$.find(".Rk-Bin-Title").each(function() {

        _d += Rkns.$(this).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));

            }

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

            if (typeof this._init == "function") {

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

            }

        }

        _class.prototype = new _baseClass();

        return _class;

    }

}