<!--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ~ Copyright (c) 2015-2018 Skymind, Inc.
  ~
  ~ This program and the accompanying materials are made available under the
  ~ terms of the Apache License, Version 2.0 which is available at
  ~ https://www.apache.org/licenses/LICENSE-2.0.
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  ~ WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  ~ License for the specific language governing permissions and limitations
  ~ under the License.
  ~
  ~ SPDX-License-Identifier: Apache-2.0
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->

<html>
    <head>
        <style type="text/css">
        /* Color and style reference.
            To change: do find + replace on comment + color

            heading background:         headingbgcol        #063E53            //Old candidates: #3B5998
            heading text color:         headingtextcolor    white
        */

        .hd {
            background-color: #000000;
            height: 41px;
            font-size: 20px;
            color: #FFFFFF;
            font-family: "Open Sans", sans-serif;
            font-weight: 200;
        }

        html, body {
            width: 100%;
            height: 100%;
            padding: 0;
        }

        .bgcolor {
            background-color: #EFEFEF;
        }

        h1 {
            font-family: "Open Sans", sans-serif;
            font-size: 28px;
            font-style: bold;
            font-variant: normal;
            font-weight: 500;
            line-height: 26.4px;
        }

        h3 {
            font-family: "Open Sans", sans-serif;
            font-size: 16px;
            font-style: normal;
            font-variant: normal;
            font-weight: 500;
            line-height: 26.4px;
        }

        table {
            font-family: "Open Sans", sans-serif;
            font-size: 14px;
        }

        table.resultsTable {
            border-collapse:collapse;
            background-color: white;
            /*border-collapse: collapse;*/
            padding: 15px;
        }

        table.resultsTable td, table.resultsTable tr, table.resultsTable th {
            border:solid black 1px;
            white-space: pre;   /* assume text is preprocessed for formatting */
        }

        table.resultsTable th {
            background-color: /*headingbgcol*/#063E53;
            color: white;
            padding-left: 4px;
            padding-right: 4px;
        }

        table.resultsTable td {
            /*background-color: white;*/
            padding-left: 4px;
            padding-right: 4px;
        }

        /* Properties for table cells in the tables generated using the RenderableComponent mechanism */
        .renderableComponentTable {
            /*table-layout:fixed; */    /*Avoids scrollbar, but makes fixed width for all columns :( */
            width: 100%
        }
        .renderableComponentTable td {
            padding-left: 4px;
            padding-right: 4px;
            white-space: pre;   /* assume text is pre-processed (important for line breaks etc)*/
            word-wrap:break-word;
            vertical-align: top;
        }

        /** CSS for result table rows */
        .resultTableRow {
            background-color: #FFFFFF;
            cursor: pointer;
        }

        /** CSS for result table CONTENT rows (i.e., only visible when expanded) */
        .resultTableRowSelected {
            background-color: rgba(0, 157, 255, 0.16);
        }

        .resultsHeadingDiv {
            background-color: /*headingbgcol*/#063E53;
            color: white;
            font-family: "Open Sans", sans-serif;
            font-size: 16px;
            font-style: bold;
            font-variant: normal;
            font-weight: 500;
            line-height: 26.4px;
            cursor: default;
            padding-top: 8px;
            padding-bottom: 8px;
            padding-left: 45px;
            padding-right: 45px;
            border-style: solid;
            border-width: 1px;
            border-color: #AAAAAA;
        }

        div.outerelements {
            padding-bottom: 30px;
        }

        #accordion, #accordion2 {
            padding-bottom: 20px;
        }

        #accordion .ui-accordion-header, #accordion2 .ui-accordion-header, #accordion3 .ui-accordion-header {
            background-color: /*headingbgcolor*/#063E53;      /*Color when collapsed*/
            color: /*headingtextcolor*/white;
            font-family: "Open Sans", sans-serif;
            font-size: 16px;
            font-style: bold;
            font-variant: normal;
            margin: 0px;
            background-image: none;     /* Necessary, otherwise color changes don't make a difference */
        }

        #accordion .ui-accordion-content {
            width: 100%;
            background-color: white;    /*background color of accordian content (elements in front may have different color */
            color: black;  /* text etc color */
            font-size: 10pt;
            line-height: 16pt;
            overflow:visible !important;
        }

        /** Line charts */
        path {
            stroke: steelblue;
            stroke-width: 2;
            fill: none;
        }
        .axis path, .axis line {
            fill: none;
            stroke: #000;
            shape-rendering: crispEdges;
        }
        .tick line {
            opacity: 0.2;
            shape-rendering: crispEdges;
        }

        </style>
        <title>DL4J - Arbiter UI</title>
    </head>
    <body class="bgcolor">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <link id="bootstrap-style" href="/assets/webjars/bootstrap/2.3.2/css/bootstrap.min.css" rel="stylesheet">
        <script src="/assets/webjars/jquery/2.2.0/jquery.min.js"></script>
        <link href="/assets/webjars/jquery-ui/1.10.2/themes/base/jquery-ui.css" rel="stylesheet">
        <script src="/assets/webjars/jquery-ui/1.10.2/ui/minified/jquery-ui.min.js"></script>
        <script src="/assets/webjars/d3js/3.3.5/d3.min.js" charset="utf-8"></script>
        <script src="/assets/webjars/bootstrap/2.3.2/js/bootstrap.min.js"></script>
        <script src="/assets/dl4j-ui.js"></script>

    <script>
    //Store last update times:
    var lastStatusUpdateTime = -1;
    var lastSettingsUpdateTime = -1;
    var lastResultsUpdateTime = -1;

    var resultTableSortIndex = 0;
    var resultTableSortOrder = "ascending";
    var resultsTableContent;

    var selectedCandidateIdx = null;

    //Set basic interval function to do updates
    setInterval(doUpdate,5000);    //Loop every 5 seconds


    function doUpdate(){
        //Get the update status, and do something with it:
        $.get("/arbiter/lastUpdate",function(data){
            //Encoding: matches names in UpdateStatus class
            var jsonObj = JSON.parse(JSON.stringify(data));
            var statusTime = jsonObj['statusUpdateTime'];
            var settingsTime = jsonObj['settingsUpdateTime'];
            var resultsTime = jsonObj['resultsUpdateTime'];
            //console.log("Last update times: " + statusTime + ", " + settingsTime + ", " + resultsTime);

            //Update available sessions:
            var currSession;
            $.get("/arbiter/sessions/current", function(data){
                currSession = data; //JSON.stringify(data);
                console.log("Current: " + currSession);
            });

            $.get("/arbiter/sessions/all", function(data){
                var keys = data;    // JSON.stringify(data);

                if(keys.length > 1){
                    $("#sessionSelectDiv").show();

                    var elem = $("#sessionSelect");
                    elem.empty();

                    var currSelectedIdx = 0;
                    for (var i = 0; i < keys.length; i++) {
                        if(keys[i] == currSession){
                            currSelectedIdx = i;
                        }
                        elem.append("<option value='" + keys[i] + "'>" + keys[i] + "</option>");
                    }

                    $("#sessionSelect option[value='" + keys[currSelectedIdx] +"']").attr("selected", "selected");
                    $("#sessionSelectDiv").show();
                }
//                console.log("Got sessions: " + keys + ", current: " + currSession);
            });


            //Check last update times for each part of document, and update as necessary
            //First section: summary status
            if(lastStatusUpdateTime != statusTime){
                //Get JSON: address set by SummaryStatusResource
                $.get("/arbiter/summary",function(data){
                    var summaryStatusDiv = $('#statusdiv');
                    summaryStatusDiv.html('');

                    var str = JSON.stringify(data);
                    var component = Component.getComponent(str);
                    component.render(summaryStatusDiv);
                });

                lastStatusUpdateTime = statusTime;
            }

            //Second section: Optimization settings
            if(lastSettingsUpdateTime != settingsTime){
                //Get JSON for components
                $.get("/arbiter/config",function(data){
                    var str = JSON.stringify(data);

                    var configDiv = $('#settingsdiv');
                    configDiv.html('');

                    var component = Component.getComponent(str);
                    component.render(configDiv);
                });

                lastSettingsUpdateTime = settingsTime;
            }

            //Third section: Summary results table (summary info for each candidate)
            if(lastResultsUpdateTime != resultsTime){

                //Get JSON; address set by SummaryResultsResource
                $.get("/arbiter/results",function(data){
                    //Expect an array of CandidateInfo type objects here
                    resultsTableContent = data;
                    drawResultTable();
                });

                lastResultsUpdateTime = resultsTime;
            }

            //Finally: Currently selected result
            if(selectedCandidateIdx != null){
                //Get JSON for components
                $.get("/arbiter/candidateInfo/"+selectedCandidateIdx,function(data){
                    var str = JSON.stringify(data);

                    var resultsViewDiv = $('#resultsviewdiv');
                    resultsViewDiv.html('');

                    var component = Component.getComponent(str);
                    component.render(resultsViewDiv);
                });
            }
        })
    }

    function createTable(tableObj,tableId,appendTo){
        //Expect RenderableComponentTable
        var header = tableObj['header'];
        var values = tableObj['table'];
        var title = tableObj['title'];
        var nRows = (values ? values.length : 0);

        if(title){
            appendTo.append("<h5>"+title+"</h5>");
        }

        var table;
        if(tableId) table = $("<table id=\"" + tableId + "\" class=\"renderableComponentTable\">");
        else table = $("<table class=\"renderableComponentTable\">");
        if(header){
            var headerRow = $("<tr>");
            var len = header.length;
            for( var i=0; i<len; i++ ){
                headerRow.append($("<th>" + header[i] + "</th>"));
            }
            headerRow.append($("</tr>"));
            table.append(headerRow);
        }

        if(values){
            for( var i=0; i<nRows; i++ ){
                var row = $("<tr>");
                var rowValues = values[i];
                var len = rowValues.length;
                for( var j=0; j<len; j++ ){
                    row.append($('<td>'+rowValues[j]+'</td>'));
                }
                row.append($("</tr>"));
                table.append(row);
            }
        }

        table.append($("</table>"));
        appendTo.append(table);
    }

    function drawResultTable(){
        //Remove all elements from the table body
        var tableBody = $('#resultsTableBody');
        tableBody.empty();

        //Recreate the table header, with appropriate sort order:
        var tableHeader = $('#resultsTableHeader');
        tableHeader.empty();
        var headerRow = $("<tr />");
        var char = (resultTableSortOrder== "ascending" ? "&blacktriangledown;" : "&blacktriangle;");
        if(resultTableSortIndex == 0) headerRow.append("$(<th>ID &nbsp; " + char + "</th>");
        else headerRow.append("$(<th>ID</th>");
        if(resultTableSortIndex == 1) headerRow.append("$(<th>Score &nbsp; " + char + "</th>");
        else headerRow.append("$(<th>Score</th>");
        if(resultTableSortIndex == 2) headerRow.append("$(<th>Status &nbsp; " + char + "</th>");
        else headerRow.append("$(<th>Status</th>");
        tableHeader.append(headerRow);


        //Sort rows, and insert into table:
        var sorted;
        if(resultTableSortIndex == 0) sorted = resultsTableContent.sort(compareResultsIndex);
        else if(resultTableSortIndex == 1) sorted = resultsTableContent.sort(compareScores);
        else sorted = resultsTableContent.sort(compareStatus);

        var len = (!resultsTableContent ? 0 : resultsTableContent.length);
        for(var i=0; i<len; i++){
            var row;
            if(selectedCandidateIdx == sorted[i][0]){
                //Selected row
                row = $('<tr class="resultTableRowSelected" id="rTbl-' + sorted[i][0] + '"/>');
            } else {
                //Normal row
                row = $('<tr class="resultTableRow" id="rTbl-' + sorted[i][0] + '"/>');
            }
            row.append($("<td>" + sorted[i][0] + "</td>"));
            var score = sorted[i][1];
            row.append($("<td>" + ((!score || score == "null") ? "-" : score) + "</td>"));
            row.append($("<td>" + sorted[i][2] + "</td>"));
            tableBody.append(row);
        }
    }

    //Compare function for results, based on sort order
    function compareResultsIndex(a, b){
        return (resultTableSortOrder == "ascending" ? a[0] - b[0] : b[0] - a[0]);
    }
    function compareScores(a,b){
        //TODO Not always numbers...
        if(resultTableSortOrder == "ascending"){
            if(a[1] == "NaN"){
                return 1;
            } else if(b[1] == "NaN"){
                return -1;
            }
            return a[1] - b[1];
        } else {
            if(a[1] == "NaN"){
                return -1;
            } else if(b[1] == "NaN"){
                return 1;
            }
            return b[1] - a[1];
        }
    }
    function compareStatus(a,b){
        //TODO: secondary sort on... score? index?
        if(resultTableSortOrder == "ascending"){
            return (a[2] < b[2] ? -1 : (a[2] > b[2] ? 1 : 0));
        } else {
            return (a[2] < b[2] ? 1 : (a[2] > b[2] ? -1 : 0));
        }
    }

    //Do a HTTP request on the specified path, parse and insert into the provided element
    function loadCandidateDetails(path, elementToAppendTo){
        $.get(path, function (data) {
            var str = JSON.stringify(data);
            var component = Component.getComponent(str);
            component.render(elementToAppendTo);
        });
    }



    //Sorting by column: Intercept click events on table header
    $(function(){
        $("#resultsTableHeader").delegate("th", "click", function(e) {
            //console.log("Header clicked on at: " + $(e.currentTarget).index() + " - " + $(e.currentTarget).html());
            //Update the sort order for the table:
            var clickIndex = $(e.currentTarget).index();
            if(clickIndex == resultTableSortIndex){
                //Switch sort order: ascending -> descending or descending -> ascending
                if(resultTableSortOrder == "ascending"){
                    resultTableSortOrder = "descending";
                } else {
                    resultTableSortOrder = "ascending";
                }
            } else {
                //Sort on column, ascending:
                resultTableSortIndex = clickIndex;
                resultTableSortOrder = "ascending";
            }

            //Clear record of expanded rows
            expandedRowsCandidateIDs = [];

            //Redraw table
            drawResultTable();
        });
    });

    //Displaying model/candidate details: Intercept click events on table rows -> toggle selected, fire off update
    $(function(){
        $("#resultsTableBody").delegate("tr", "click", function(e){
            var id = this.id;   //Expect: rTbl-X  where X is some index
            var dashIdx = id.indexOf("-");
            var candidateID = Number(id.substring(dashIdx+1));
//            console.log("Clicked row: " + this.id + " with class: " + this.className + ", candidateId = " + candidateID);

            if(this.className == "resultTableRow"){
                //Set selected model
                selectedCandidateIdx = candidateID;

                //Fire off update
                doUpdate();
            }
        });
    });

    function selectNewSession(){
        var selector = $("#sessionSelect");
        var currSelected = selector.val();

        if(currSelected){
            $.ajax({
                url: "/arbiter/sessions/set/" + currSelected,
                async: true,
                error: function (query, status, error) {
                    console.log("Error setting session: " + error);
                },
                success: function (data) {
                    //Update UI immediately
                    doUpdate();
                }
            });
        }
    }

</script>
<script>
    $(function () {
        $("#accordion").accordion({
            collapsible: true,
            heightStyle: "content"
        });
    });
    $(function () {
        $("#accordion2").accordion({
            collapsible: true,
            heightStyle: "content"
        });
    });
    $(function () {
        $("#accordion3").accordion({
            collapsible: true,
            heightStyle: "content"
        });
    });
</script>
        <table style="width: 100%;
            padding: 5px;" class="hd">
            <tbody>
                <tr style="height: 40px">
                    <td> <div style="width: 40px;
                        height: 40px;
                        float: left"></div>
                        <div style="height: 40px;
                            float: left;
                            padding-top: 10px">Deeplearning4J - Arbiter UI</div></td>
                    <td>
                        <div id="sessionSelectDiv" style="display:none; float:left; font-size: 10pt; color:black">
                            <span style="color: white">Session:</span>
                        <select id="sessionSelect" onchange='selectNewSession()'>
                            <option>(Session ID)</option>
                        </select>
                    </div>
                    </td>
                </tr>
            </tbody>
        </table>


        <div style="width: 1200px;
            margin-left: auto;
            margin-right: auto;">
            <div class="outerelements" id="status">
                <div id="accordion" class="hcol2">
                    <h3 class="hcol2 headingcolor ui-accordion-header">Summary</h3>
                    <div class="statusdiv" id="statusdiv">
            </div>
                </div>
            </div>

            <div class="outerelements" id="settings">
                <div id="accordion2">
                    <h3 class="ui-accordion-header headingcolor">Optimization Settings</h3>
                    <div class="settingsdiv" id="settingsdiv"></div>
                </div>
            </div>


            <div class="outerelements" id="results">
                <div class="resultsHeadingDiv">Results</div>
                <div class="resultsdiv" id="resultsdiv">
                    <table style="width: 100%" id="resultsTable" class="resultsTable">
                        <col width="33%">
                        <col width="33%">
                        <col width="34%">
                        <thead id="resultsTableHeader"></thead>
                        <tbody id="resultsTableBody"></tbody>
                    </table>
                </div>
            </div>

            <div class="outerelements" id="resultview">
                <div id="accordion3">
                    <h3 class="ui-accordion-header headingcolor">Selected Result</h3>
                    <div class="resultsviewdiv" id="resultsviewdiv"></div>
                </div>
            </div>
        </div>
    </body>
</html>