/*
	Sankore API
*/
function startEditing()
{
    modeEdit();
}

function stopEditing()
{
    modeView();
}

function initialize()
{
	
}

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

var sankoreLang = {
    view: "Afficher", 
    edit: "Modifier",
    example: "Cette phrase\nest un\nexemple",
    wgt_name: "Ordonner des phrases",
    reload: "Recharger",
    slate: "ardoise",
    pad: "tablette",
    none: "aucun",
    help: "Aide",
    help_content: "<p><h2>Ordonner des phrases</h2></p>"+
"<p><h3>Ordonner des segments de phrases pour reconstituer le texte.</h3></p>"+

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

"<p>Le bouton “Recharger” réinitialise l’exercice.</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 le texte à reconstituer et le nombre de séparations dans l’énoncé.</li></ul>"+

"<p>Pour insérer du texte dans la zone, cliquez sur la zone et saisissez le texte souhaité.</p>"+
"<p>Pour ajouter des séparations dans l’énoncé, retournez à la ligne. Votre texte sera séparé lors d'un retour à la ligne.</p>"+

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


var sentence = "";
var curSentence = "";

if(window.sankore){
    sentence = (sankore.preference("rightOrdPhrases", ""))?sankore.preference("rightOrdPhrases", ""):sankoreLang.example;
    curSentence = (sankore.preference("currentOrdPhrases", ""))?sankore.preference("currentOrdPhrases", ""):"";
} else {
    sentence = sankoreLang.example;
}

var doCheck = true;

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

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;

$(document).ready(function(){
    if(sankore.preference("ord_phrases_style","")){
        changeStyle(sankore.preference("ord_phrases_style",""));
        $(".style_select").val(sankore.preference("ord_phrases_style",""));
    } else
        changeStyle("3")
    
    $("#wgt_display").text(sankoreLang.view);
    $("#wgt_edit").text(sankoreLang.edit);
    $("#wgt_help").text(sankoreLang.help);
    $("#help").html(sankoreLang.help_content);
    
    $("#wgt_display, #wgt_edit").click(function(event){
        if(this.id == "wgt_display"){
            if(!$(this).hasClass("selected")){                
                $(this).addClass("selected");
                $("#wgt_edit").removeClass("selected");
                $(".style_select").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");
                $(".style_select").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")){
            $("#help").slideUp("100", function(){
                tmp.removeClass("open");
                $("#ub-widget").show();
            });
        } else {            
            $("#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();
	
            var phrases;
            phrases = shuffle( createElements( sentence ) );
    
            for( i in phrases ){
                $("#mp_word").append( phrases[i] );
            }
	
            // in sankore api there would be a function to check 
            // the answer, so no update parameter would be needed
            $( "#mp_word" ).sortable();
            if( !isSankore ){
                $( "#mp_word" ).sortable( {
                    update: checkSentence
                } );
            } else 
                $( "#mp_word" ).sortable();
        }
    });
    
    $(".style_select option[value='1']").text(sankoreLang.slate);
    $(".style_select option[value='2']").text(sankoreLang.pad);
    $(".style_select option[value='3']").text(sankoreLang.none);
    
    $(".style_select").change(function (event){
        changeStyle($(this).find("option:selected").val());
    })
})

function str_replace( w, b, s ){
    while( s.indexOf( w ) != -1 ){
        s = s.replace( w, b );
    }
    return s;
}

/*
==============
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;
}

/*
=================
createWordLetters
=================
returns array of dom elements
*/
function createElements( sentence )
{
    var el;
    var elements = [];
    var phrases = sentence.split( "\n" );
	
    for( i in phrases )
    {
        el = document.createElement( "div" );
        $( el ).addClass( "phrase" ).text( phrases[i] );
        elements.push( el );
    }
    return elements;
}

//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_display").removeClass("pad_color").removeClass("pad_edit");
            $("#wgt_name").removeClass("pad_color");
            $(".style_select").removeClass("pad_select").removeClass("none_select").val(val);
            $("body, html").removeClass("without_radius");
            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_display").addClass("pad_color").addClass("pad_edit");
            $("#wgt_name").addClass("pad_color");
            $(".style_select").addClass("pad_select").removeClass("none_select").val(val);
            $("body, html").removeClass("without_radius");
            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_display").addClass("pad_color").addClass("pad_edit");
            $("#wgt_name").addClass("pad_color");
            $(".style_select").addClass("none_select").val(val);
            $("body, html").addClass("without_radius");
            break;
    }
}

function checkSentence()
{
    if( !doCheck )
        return;
		
    var ph = [];
    $( "#mp_word .phrase" ).each( function()
    {
        ph.push( $( this ).text() );
    });
    if( ph.join( "\n" ) == str_replace( "\r", "", sentence ) ){
        $( "#mp_word .phrase" ).addClass( "right" );
    } else {
        $( "#mp_word .phrase" ).removeClass( "right" );
    }
}

/*
==================
modeView()
==================
turns the widget into the view mode
*/
function modeView()
{
    if( editMode ){
        sentence = str_replace( "\r", "", $( "#mp_word textarea" ).attr( "value" ) );
        var p = sentence.split( "\n" );
        var p2 = [];
        var t;
        for( var i in p )
        {
            t = jQuery.trim( p[i] );
            if( t ) p2.push( t );
        }
        sentence = p2.join( "\n" );
    }
	
    wgtState = false;
    
    // clean the previous word
    $( "#mp_word" ).empty();
	
    var phrases;
    // create new set of elements
    if(window.sankore && curSentence && !editMode)
        phrases = createElements( curSentence );
    else
        phrases = shuffle( createElements( sentence ) );
    
    for( i in phrases ){
        $("#mp_word").append( phrases[i] );
    }
	
    // in sankore api there would be a function to check 
    // the answer, so no update parameter would be needed
    $( "#mp_word" ).sortable();
    if( !isSankore ){
        $( "#mp_word" ).sortable( {
            update: checkSentence
        } );
    } else 
        $( "#mp_word" ).sortable();
    
    checkSentence();
}

/*
================
modeEdit
================
*/
function modeEdit()
{
    editMode = true;
    wgtState = true;

    $( "#mp_word").css( "margin-left", 0 ).empty()
    .append('<textarea cols="50" rows="5">'+sentence+'</textarea>');
}

if (window.widget) {
    window.widget.onleave = function(){
        sankore.setPreference("ord_phrases_style", $(".style_select").find("option:selected").val());
        if($( "#mp_word textarea" ).val())
        {
            modeView();
            var ph = [];
            $( "#mp_word .phrase" ).each( function()
            {
                ph.push( $( this ).text() );
            });	
            sankore.setPreference("currentOrdPhrases", ph.join( "\n" ));            
            modeEdit();
        }
        else{
            ph = [];
            $( "#mp_word .phrase" ).each( function()
            {
                ph.push( $( this ).text() );
            });		
            sankore.setPreference("currentOrdPhrases", ph.join( "\n" ));
        }
        sankore.setPreference("rightOrdPhrases", sentence);
    }
}