[% INCLUDE 'doc-head-open.inc' %]
    <title>Koha &rsaquo; Tools &rsaquo; Quote uploader</title>
    [% INCLUDE 'doc-head-close.inc' %]
    <link rel="stylesheet" type="text/css" href="/intranet-tmpl/prog/en/css/uploader.css" />
    <link rel="stylesheet" type="text/css" href="/intranet-tmpl/prog/en/css/datatables.css" />
    <script type="text/javascript" src="/intranet-tmpl/prog/en/lib/jquery/plugins/jquery.dataTables.min.js"></script>
    [% INCLUDE 'datatables-strings.inc' %]
    </script>
    <script type="text/javascript" src="/intranet-tmpl/prog/en/js/datatables.js"></script>
    <script type="text/javascript" src="/intranet-tmpl/prog/en/js/jquery.jeditable.mini.js"></script>
    <script type="text/javascript">
    //<![CDATA[
    var oTable; //DataTable object
    $(document).ready(function() {

    // Credits:
    // FileReader() code copied and hacked from:
    // http://www.html5rocks.com/en/tutorials/file/dndfiles/
    // fnCSVToArray() gratefully borrowed from:
    // http://www.bennadel.com/blog/1504-Ask-Ben-Parsing-CSV-Strings-With-Javascript-Exec-Regular-Expression-Command.htm

    var reader;
    var progress = document.querySelector('.percent');
    $("#server_response").hide();

    function fnAbortRead() {
        reader.abort();
    }

    function fnErrorHandler(evt) {
        switch(evt.target.error.code) {
            case evt.target.error.NOT_FOUND_ERR:
                alert('File Not Found!');
                break;
            case evt.target.error.NOT_READABLE_ERR:
                alert('File is not readable');
                break;
            case evt.target.error.ABORT_ERR:
                break; // noop
            default:
                alert('An error occurred reading this file.');
        };
    }

    function fnUpdateProgress(evt) {
        // evt is an ProgressEvent.
        if (evt.lengthComputable) {
            var percentLoaded = Math.round((evt.loaded / evt.total) * 100);
            // Increase the progress bar length.
            if (percentLoaded < 100) {
                progress.style.width = percentLoaded + '%';
                progress.textContent = percentLoaded + '%';
            }
        }
    }

    function fnCSVToArray( strData, strDelimiter ){
        // This will parse a delimited string into an array of
        // arrays. The default delimiter is the comma, but this
        // can be overriden in the second argument.

        // Check to see if the delimiter is defined. If not,
        // then default to comma.
        strDelimiter = (strDelimiter || ",");

        // Create a regular expression to parse the CSV values.
        var objPattern = new RegExp(
        (
            // Delimiters.
            "(\\" + strDelimiter + "|\\r?\\n|\\r|^)" +
            // Quoted fields.
            "(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|" +
            // Standard fields.
            "([^\"\\" + strDelimiter + "\\r\\n]*))"
        ),
            "gi"
        );

        // Create an array to hold our data. Give the array
        // a default empty first row.
        var arrData = [[]];

        // Create an array to hold our individual pattern
        // matching groups.
        var arrMatches = null;

        // Keep looping over the regular expression matches
        // until we can no longer find a match.
        while (arrMatches = objPattern.exec( strData )){

            // Get the delimiter that was found.
            var strMatchedDelimiter = arrMatches[ 1 ];

            // Check to see if the given delimiter has a length
            // (is not the start of string) and if it matches
            // field delimiter. If it does not, then we know
            // that this delimiter is a row delimiter.
            if ( strMatchedDelimiter.length && (strMatchedDelimiter != strDelimiter) ){
                // Since we have reached a new row of data,
                // add an empty row to our data array.
                // Note: if there is not more data, we will have to remove this row later
                arrData.push( [] );
            }

            // Now that we have our delimiter out of the way,
            // let's check to see which kind of value we
            // captured (quoted or unquoted).
            if (arrMatches[ 2 ]){
                // We found a quoted value. When we capture
                // this value, unescape any double quotes.
                var strMatchedValue = arrMatches[ 2 ].replace(
                new RegExp( "\"\"", "g" ),
                    "\""
                );
            } else if (arrMatches[3]){
                // We found a non-quoted value.
                var strMatchedValue = arrMatches[ 3 ];
            } else {
                // There is no more valid data so remove the row we added earlier
                // Is there a better way? Perhaps a look-ahead regexp?
                arrData.splice(arrData.length-1, 1);
            }

            // Now that we have our value string, let's add
            // it to the data array.
            arrData[ arrData.length - 1 ].push( strMatchedValue );
        }

        // Return the parsed data.
        return( arrData );
    }

    function fnDataTable(aaData) {
        for(var i=0; i<aaData.length; i++) {
            aaData[i].unshift(i+1); // Add a column w/quote number
        }
        $('#save_quotes').css("visibility","visible");
        $('#file_uploader').css("visibility","hidden");
        $('#file_uploader').css("position","absolute");
        $('#file_uploader').css("top","-150px");
        $('#quotes_editor').css("visibility","visible");
        oSaveButton.on("click", yuiGetData);
        oDeleteButton.on("click", fnClickDeleteRow);
        oTable = $('#quotes_editor').dataTable( {
            "bAutoWidth"        : false,
            "bPaginate"         : true,
            "bSort"             : false,
            "sPaginationType"   : "full_numbers",
            "aaData"            : aaData,
            "aoColumns"         : [
                {
                    "sTitle"  : "Number",
                    "sWidth"  : "2%",
                },
                {
                    "sTitle"  : "Source",
                    "sWidth"  : "15%",
                },
                {
                    "sTitle"  : "Quote",
                    "sWidth"  : "83%",
                },
            ],
           "fnPreDrawCallback": function(oSettings) {
                return true;
            },
            "fnRowCallback": function( nRow, aData, iDisplayIndex ) {
                /* do foo on various cells in the current row */
                var quoteNum = $('td', nRow)[0].innerHTML;
                $(nRow).attr("id", quoteNum); /* set row ids to quote number */
                $('td:eq(0)', nRow).click(function() {$(this.parentNode).toggleClass('selected',this.clicked);}); /* add row selectors */
                $('td:eq(0)', nRow).attr("title", "Click ID to select/deselect quote");
                /* apply no_edit id to noEditFields */
                noEditFields = [0]; /* number */
                for (i=0; i<noEditFields.length; i++) {
                    $('td', nRow)[noEditFields[i]].setAttribute("id","no_edit");
                }
                return nRow;
            },
           "fnDrawCallback": function(oSettings) {
                /* Apply the jEditable handlers to the table on all fields w/o the no_edit id */
                $('#quotes_editor tbody td[id!="no_edit"]').editable( function(value, settings) {
                        var cellPosition = oTable.fnGetPosition( this );
                        oTable.fnUpdate(value, cellPosition[0], cellPosition[1], false, false);
                        return(value);
                    },
                    {
                    "callback"      : function( sValue, y ) {
                                          oTable.fnDraw(false); /* no filter/sort or we lose our pagination */
                                      },
                    "height"        : "14px",
                });
           },
        });
        $('#footer').css("visibility","visible");
    }

    function fnHandleFileSelect(evt) {
        // Reset progress indicator on new file selection.
        progress.style.width = '0%';
        progress.textContent = '0%';

        reader = new FileReader();
        reader.onerror = fnErrorHandler;
        reader.onprogress = fnUpdateProgress;
        reader.onabort = function(e) {
            alert('File read cancelled');
            parent.location='quotes-upload.pl';
        };
        reader.onloadstart = function(e) {
            $('#cancel_upload').css("visibility","visible");
            $('#progress_bar').addClass("loading");
        };
        reader.onload = function(e) {
            // Ensure that the progress bar displays 100% at the end.
            progress.style.width = '100%';
            progress.textContent = '100%';
            $('#cancel_upload').css("visibility","hidden");
            quotes = fnCSVToArray(e.target.result, ',');
            fnDataTable(quotes);
        }

        // perform various sanity checks on the target file prior to uploading...
        var fileType = evt.target.files[0].type || 'unknown';
        var fileSizeInK = Math.round(evt.target.files[0].size/1024);

        if (!fileType.match(/comma-separated-values|csv|excel/i)) {
            alert('Incorrect filetype: '+fileType+'. Uploads limited to csv.');
            parent.location='quotes-upload.pl';
            return;
        }
        if (fileSizeInK > 512) {
            if (!confirm(evt.target.files[0].name+' is '+fileSizeInK+' K in size. Do you really want to upload this file?')) {
                parent.location='quotes-upload.pl';
                return;
            }
        }
        // Read in the image file as a text string.
        reader.readAsText(evt.target.files[0]);
    }

    $('#file_upload').one('change', fnHandleFileSelect);

    });

    function fnGetData(element) {
        var jqXHR = $.ajax({
            url         : "/cgi-bin/koha/tools/quotes/quotes-upload_ajax.pl",
            type        : "POST",
            contentType : "application/x-www-form-urlencoded", // we must claim this mimetype or CGI will not decode the URL encoding
            dataType    : "json",
            data        : {
                            "quote"     : JSON.stringify(oTable.fnGetData()),
                            "action"    : "add",
                          },
            success     : function(){
                            var response = JSON.parse(jqXHR.responseText);
                            if (response.success) {
                                $("#server_response").text(response.records+' quotes saved.');
                            }
                            else {
                                $("#server_response").text('An error has occurred. '+response.records+' quotes saved. Please ask your administrator to check the server log for more details.');
                            }
                            $("#server_response").fadeIn(200);
                          },
        });
    }

    function fnClickDeleteRow() {
        var idsToDelete = oTable.$('.selected').map(function() {
              return this.id;
        }).get().join(', ');
        if (!idsToDelete) {
            alert('Please select a quote(s) by clicking the quote id(s) you desire to delete.');
        }
        else if (confirm('Are you sure you wish to delete quote(s) '+idsToDelete+'?')) {
            oTable.$('.selected').each(function(){
                oTable.fnDeleteRow(this);
            });
        }
    }

    function fnResetUpload() {
        $('#server_response').fadeOut(200);
        window.location.reload(true);   // is this the best route?
    }

    //]]>
    </script>
</head>
<body id="tools_quotes" class="tools">
[% INCLUDE 'header.inc' %]
[% INCLUDE 'cat-search.inc' %]

<div id="breadcrumbs"><a href="/cgi-bin/koha/mainpage.pl">Home</a> &rsaquo; <a href="/cgi-bin/koha/tools/tools-home.pl">Tools</a> &rsaquo; <a href="/cgi-bin/koha/tools/quotes.pl">Quote editor</a> &rsaquo; Quote uploader</div>

<div id="doc3" class="yui-t2">
    <div id="bd">
        <div id="yui-main">
            <div class="yui-b">
                [% INCLUDE 'quotes-upload-toolbar.inc' %]
                <h2>Quote uploader</h2>
                <fieldset id="file_uploader" class="rows" style="visibility:visible;">
                    <legend>Upload quotes</legend>
                    <div id="file_upload" style="margin-left: 10px;">
                        <input type="file" name="file" />
                        <button id="cancel_upload" style="visibility:hidden;" onclick="fnAbortRead();">Cancel Upload</button>
                        <div id="progress_bar"><div class="percent">0%</div></div>
                    </div>
                </fieldset>
                <div id="server_response" onclick='fnResetUpload()'>Server Response</div>
                <table id="quotes_editor" style="float: left; width: 100%; visibility:hidden;">
                <thead>
                    <tr>
                        <th>Source</th>
                        <th>Text</th>
                        <th>Actions</th>
                    </tr>
                </thead>
                <tbody>
                    <!-- tbody content is generated by DataTables -->
                    <tr>
                        <td></td>
                        <td>Loading data...</td>
                        <td></td>
                    </tr>
                </tbody>
                </table>
                <fieldset id="footer" class="action" style="visibility:hidden; height:25px">
                </fieldset>
            </div>
        </div>
    <div class="yui-b noprint">
        [% INCLUDE 'tools-menu.inc' %]
    </div>
</div>
[% INCLUDE 'intranet-bottom.inc' %]