/*
	Sankore API
*/

function startEditing()
{
    modeEdit();
}

function stopEditing()
{
    modeView();
}

function initialize()
{
	
}

function checkResponse()
{
    checkWord();
}
/*
	/ END sankore api
*/

var sankoreLang = {
    view: "Afficher", 
    edit: "Modifier",
    example: "Il*était*une*fois*...",
    wgt_name: "Ordonner des mots",
    reload: "Recharger",
    slate: "ardoise",
    pad: "tablette",
    none: "aucun",
    help: "Aide",
    help_content: "<p><h2>Ordonner des mots</h2></p>"+
    "<p><h3>Ordonner des mots pour reconstituer une phrase.</h3></p>"+

    "<p>Des étiquettes avec des mots sont dans le désordre. Le but est de les remettre en ordre pour avoir un énoncé compréhensible et correct. Lorsque l’énoncé est en ordre, l’interactivité se colore en vert. L’activité s’effectue par un glisser-déposer des étiquettes pour remettre les mots en ordre.</p>"+

    "<p>Le bouton “Recharger” réinitialise les exercices.</p>"+

    "<p>Le bouton “Modifier” vous permet :</p>"+
    "<ul><li>de choisir le thème de l’interactivité : tablette, ardoise ou aucun (par défaut aucun),</li>"+
    "<li>de déterminer la phrase à reconstituer et les séparations dans l’énoncé.</li></ul>"+

    "<p>Pour insérer du texte dans la zone, cliquez sur la zone et saisissez la phrase souhaitée. </p>"+
    "<p>Pour ajouter des espaces dans la phrase, insérer une étoile * entre chaque mot. Votre texte sera séparé autant de fois qu’il y a d’étoiles.<b> NB : une (*) correspond à un espace. Ne pas en mettre ni au début ni à la fin de votre phrase.</b></p>"+

    "<p>Le bouton “Afficher” vous permet d’utiliser l’activité. </p>",
    theme:"Thème"
};

var word = "";
var curWord = "";

if(window.sankore){
    word = (sankore.preference("rightOrdWords", ""))?sankore.preference("rightOrdWords", ""):sankoreLang.example;
    curWord = (sankore.preference("currentOrdWords", ""))?sankore.preference("currentOrdWords", ""):"";
} else {
    word = sankoreLang.example;
}

// array of dom elements
var letters = [];

var editMode = false; // just a flag

var wgtState = false; // just another flag

// if use the "edit" button or rely on the api instead
var isSankore = false;
// whether to do window.resize or not (window = widget area)
var isBrowser = ( typeof( widget ) == "undefined" );

// hardcoded parameters, not very good
var input_width = 606;
var widget_padding = 0;
var min_view_width = 400;


$(document).ready(function(){
    if(window.sankore){
        if(sankore.preference("ord_words_style","")){
            changeStyle(sankore.preference("ord_words_style",""));
        } else
            changeStyle("3")
    } else 
        changeStyle("3")
    $("#wgt_display").text(sankoreLang.view);
    $("#wgt_edit").text(sankoreLang.edit);
    $("#wgt_help").text(sankoreLang.help);
    $("#help").html(sankoreLang.help_content);    
    $("#style_select option[value='1']").text(sankoreLang.slate);
    $("#style_select option[value='2']").text(sankoreLang.pad);
    $("#style_select option[value='3']").text(sankoreLang.none);
    var tmpl = $("div.inline label").html();
    $("div.inline label").html(sankoreLang.theme + tmpl)
    
    $("#style_select").change(function (event){
        changeStyle($(this).find("option:selected").val());
    })
    
    $("#wgt_display, #wgt_edit").click(function(event){
        if(this.id == "wgt_display"){
            if(!$(this).hasClass("selected")){                
                $(this).addClass("selected");
                $("#wgt_edit").removeClass("selected");
                $("#parameters").css("display","none");                
                $(this).css("display", "none");
                $("#wgt_edit").css("display", "block");
                modeView();
            }
        } else {            
            if(!$(this).hasClass("selected")){
                $(this).addClass("selected");
                $("#wgt_display").removeClass("selected");
                $("#parameters").css("display","block");                
                $(this).css("display", "none");
                $("#wgt_display").css("display", "block");
                modeEdit();
            }
        }
    });
    
    $("#wgt_name").text(sankoreLang.wgt_name);
    
    $("#wgt_help").click(function(){
        var tmp = $(this);
        if($(this).hasClass("open")){
            $(this).removeClass("help_pad").removeClass("help_wood")
            $("#help").slideUp("100", function(){
                tmp.removeClass("open");
                $("#ub-widget").show();
            });
        } else {            
            ($("#style_select").val() == 1)?$(this).removeClass("help_pad").addClass("help_wood"):$(this).removeClass("help_wood").addClass("help_pad");
            $("#ub-widget").hide();
            $("#help").slideDown("100", function(){
                tmp.addClass("open");
            });
        }
    });
    
    $("#wgt_reload").text(sankoreLang.reload).click(function(){
        if(wgtState)
            $("#wgt_display").trigger("click");
        else
        {
            $( "#mp_word" ).empty();
	
            // create new set of letters
            var letters;
            letters = shuffle( createWordLetters( word ) );
    
            for( i in letters ){
                $("#mp_word").append( letters[i] );
            }
	
            // in sankore api there would be a function to check 
            // the answer, so no update parameter would be needed
            if( !isSankore ){
                $( "#mp_word" ).sortable( {
                    update: checkWord
                } );
            } else $( "#mp_word" ).sortable();

            // adjustWidth
            var totalLettersWidth = 0;
            for( i in letters ){
                var currentWidth = $( letters[i] ).outerWidth( true );
                totalLettersWidth += currentWidth;
            }
            totalLettersWidth += 1;

            var width = Math.max(
                totalLettersWidth,
                min_view_width
                );
	
            // shift the words to the right to center them
            if( width > totalLettersWidth ){
                $( "#mp_word" ).css( "margin-left", Math.round( (width - totalLettersWidth)/2 ) );
            }
            else{
                $( "#mp_word" ).css( "margin-left", 0 );
            }
        }
    });    
    
})

/*
=================
createWordLetters
=================
returns array of dom elements
*/
function createWordLetters( word )
{
    var ch, el;
    var letters = [];
	
    if( word.indexOf( '*' ) != -1 )
    {
        var tmp = word.split( '*' );
        for( i in tmp )
        {
            ch = tmp[i];
            el = document.createElement( "div" );
            $(el).addClass( "letter" ).text( ch );
            letters.push( el );
        }
    }
    else
    {
        for( var i = 0; i < word.length; i++ )
        {
            ch = word.charAt( i );
            el = document.createElement( "div" );
            $(el).addClass( "letter" ).text( ch );
            letters.push( el );
        }
    }
    return letters;
}

//changing the style
function changeStyle(val){
    switch(val){
        case "1":
            $(".b_top_left").removeClass("btl_pad").removeClass("without_back");
            $(".b_top_center").removeClass("btc_pad").removeClass("without_back");
            $(".b_top_right").removeClass("btr_pad").removeClass("without_back");
            $(".b_center_left").removeClass("bcl_pad").removeClass("without_back");
            $(".b_center_right").removeClass("bcr_pad").removeClass("without_back");
            $(".b_bottom_right").removeClass("bbr_pad").removeClass("without_back");
            $(".b_bottom_left").removeClass("bbl_pad").removeClass("without_back");
            $(".b_bottom_center").removeClass("bbc_pad").removeClass("without_back");
            $("#wgt_reload").removeClass("pad_color").removeClass("pad_reload");
            $("#wgt_help").removeClass("pad_color").removeClass("pad_help");
            $("#wgt_edit").removeClass("pad_color").removeClass("pad_edit");
            $("#wgt_name").removeClass("pad_color");
            $("#wgt_display").addClass("display_wood");
            $("#style_select option:first").attr('selected',true);
            $("body, html").removeClass("without_radius").addClass("radius_ft");
            break;
        case "2":
            $(".b_top_left").addClass("btl_pad").removeClass("without_back");
            $(".b_top_center").addClass("btc_pad").removeClass("without_back");
            $(".b_top_right").addClass("btr_pad").removeClass("without_back");
            $(".b_center_left").addClass("bcl_pad").removeClass("without_back");
            $(".b_center_right").addClass("bcr_pad").removeClass("without_back");
            $(".b_bottom_right").addClass("bbr_pad").removeClass("without_back");
            $(".b_bottom_left").addClass("bbl_pad").removeClass("without_back");
            $(".b_bottom_center").addClass("bbc_pad").removeClass("without_back");
            $("#wgt_reload").addClass("pad_color").addClass("pad_reload");
            $("#wgt_help").addClass("pad_color").addClass("pad_help");
            $("#wgt_edit").addClass("pad_color").addClass("pad_edit");
            $("#wgt_name").addClass("pad_color");
            $("#wgt_display").removeClass("display_wood");
            $("#style_select option:first").next().attr('selected',true);
            $("body, html").removeClass("without_radius").removeClass("radius_ft");
            break;
        case "3":
            $(".b_top_left").addClass("without_back").removeClass("btl_pad");
            $(".b_top_center").addClass("without_back").removeClass("btc_pad");
            $(".b_top_right").addClass("without_back").removeClass("btr_pad");
            $(".b_center_left").addClass("without_back").removeClass("bcl_pad");
            $(".b_center_right").addClass("without_back").removeClass("bcr_pad");
            $(".b_bottom_right").addClass("without_back").removeClass("bbr_pad");
            $(".b_bottom_left").addClass("without_back").removeClass("bbl_pad");
            $(".b_bottom_center").addClass("without_back").removeClass("bbc_pad");
            $("#wgt_help").addClass("pad_color").addClass("pad_help");
            $("#wgt_reload").addClass("pad_color").addClass("pad_reload");
            $("#wgt_edit").addClass("pad_color").addClass("pad_edit");
            $("#wgt_name").addClass("pad_color");
            $("#wgt_display").removeClass("display_wood");
            $("#style_select option:last").attr('selected',true);
            $("body, html").addClass("without_radius").removeClass("radius_ft");
            break;
    }
}

/*
=====================
checkWord
=====================
scans the letters and checks 
if they are in the right order
*/
function checkWord()
{	
    var str = "";
    $( "#mp_word .letter" ).each( function(){
        str += $(this).text();
    });
    var w = word;
    while( w.indexOf( '*' ) != -1 )
    {
        w = w.replace( '*', '' );
    }
    //alert(str + " | " + w)
    if( str == w ){
        $( "#mp_word .letter" ).addClass( "right" );
    //message( "Right!" );
    } else {
        $( "#mp_word .letter" ).removeClass( "right" );
    }
}

/*
==============
shuffle
==============
shuffles an array
*/
function shuffle( arr )
{
    var pos, tmp;
	
    for( var i = 0; i < arr.length; i++ )
    {
        pos = Math.round( Math.random() * ( arr.length - 1 ) );
        tmp = arr[pos];
        arr[pos] = arr[i];
        arr[i] = tmp;
    }
    return arr;
}



/*
==================
modeView()
==================
turns the widget into the view mode
*/
function modeView()
{
    if( editMode ){
        word = $( "#mp_word .wgt_cont" ).val();
    }
    
    wgtState = false;
	
    // clean the previous word
    $( "#mp_word" ).empty();
	
    // create new set of letters
    var letters;
    if(window.sankore && curWord && !editMode)
        letters = createWordLetters( curWord );
    else
        letters = shuffle( createWordLetters( word ) );
    
    for( i in letters ){
        $("#mp_word").append( letters[i] );
    }
	
    // in sankore api there would be a function to check 
    // the answer, so no update parameter would be needed
    if( !isSankore ){
        $( "#mp_word" ).sortable( {
            update: checkWord
        } );
    } else $( "#mp_word" ).sortable();

    // adjustWidth
    var totalLettersWidth = 0;
    for( i in letters ){
        var currentWidth = $( letters[i] ).outerWidth( true );
        totalLettersWidth += currentWidth;
    }
    totalLettersWidth += 1;

    var width = Math.max(
        totalLettersWidth,
        min_view_width
        );
	
    // shift the words to the right to center them
    if( width > totalLettersWidth ){
        $( "#mp_word" ).css( "margin-left", Math.round( (width - totalLettersWidth)/2 ) );
    }
    else{
        $( "#mp_word" ).css( "margin-left", 0 );
    }
	
    checkWord();
}

/*
================
modeEdit
================
*/
function modeEdit()
{
    editMode = true;
    wgtState = true;
    $( "#mp_word").sortable( "destroy" );
    $( "#mp_word").css( "margin-left", 0 ).empty().append('<textarea class="wgt_cont">'+word+'</textarea>');

}

if (window.widget) {
    window.widget.onleave = function(){
        sankore.setPreference("ord_words_style", $("#style_select").find("option:selected").val());
        if($( "#mp_word .wgt_cont" ).val())
        {
            modeView();
            var str = "";
            $( "#mp_word .letter" ).each( function(){
                str += $(this).text() + "*";
            });        
            str = str.substr(0, str.length - 1);        
            sankore.setPreference("currentOrdWords", str);           
            modeEdit();
        }
        else{
            str = "";
            $( "#mp_word .letter" ).each( function(){
                str += $(this).text() + "*";
            });        
            str = str.substr(0, str.length - 1);        
            sankore.setPreference("currentOrdWords", str);
        }
        sankore.setPreference("rightOrdWords", word);
    }
}