/////////////////////////////////////////
// Functions to keep after refactoring //
/////////////////////////////////////////


var syncKetcherLock = 0;
var ignoreKetcherUpdates = 0
var ignoreTextFieldUpdates = 0
// The SMILES generated by Ketcher might look different than the one inserted
// however we need this for internal comparison to check whether the SMILES taken
// from the TextInput generates the same smiles.
var SMILES = "";

function syncTextInputToKetcher(textInputId, ketcherId) {
    var ketcher = getKetcher(ketcherId);
    var textInputSMILES = $('#' + textInputId).val();

    data = {
        "struct": textInputSMILES,
        "output_format": "chemical/x-mdl-molfile",
        "options": {
            "smart-layout": true,
            "ignore-stereochemistry-errors": true,
            "mass-skip-error-on-pseudoatoms": false,
            "gross-formula-add-rsites": true
        }
    }

    ketcher.server.layout(data).then(
        function(response) {
            if(response.struct != '') {
                console.log("Writing " + textInputSMILES + " to Ketcher");
                ketcher.setMolecule(textInputSMILES);

                // Wait for ketcher to accept the change and set global SMILES
                setTimeout(function() {
                    SMILES = ketcher.getSmiles();
                }, 250);
            }
        }
    ).catch(
        function(res) {
            console.log("Promise failed" + res);
        }
    );
}

function syncKetcherToTextInput(ketcherId, textInputId) {
    // Obtain values
    var ketcher = getKetcher(ketcherId);
    // Get the SMILES of the molecule currently drawn in Ketcher
    var tempKetcherSMILES;
    try {
        tempKetcherSMILES = ketcher.getSmiles();
    } catch(err) {
        console.log(err);
        return;
    }

    // compare to SMILES from global scope
    if(SMILES == tempKetcherSMILES) {
        // There was no change originating from TextInput
        return
    } else {
        SMILES = tempKetcherSMILES;
        $("#" + textInputId).val(SMILES);
    }
}

function syncKetcherAndTextInput(origin, ketcherId, textInputId) {
    // check if function is "locked"
    if(origin == 'ketcher') {
        // Early exit - no op
        if (ignoreKetcherUpdates == 1) {
            return;
        }
        // Lock updates triggered by textInput
        ignoreTextFieldUpdates = 1;

        // Do the sync
        syncKetcherToTextInput(ketcherId, textInputId);

        ignoreTextFieldUpdates = 0;
    } else {
        // Early exit - no op
        if(ignoreTextFieldUpdates == 1) {
            return;
        }
        ignoreKetcherUpdates = 1;

        // Do the sync
        syncTextInputToKetcher(textInputId, ketcherId);

        ignoreKetcherUpdates = 0;
    }
}

// Returns the ketcher object usually located in an iframe
function getKetcher(idToUse){
    if (idToUse === undefined) {
        console.log("getKetcher() called without id!");
        idToUse = 'ifKetcher';
    }
    var ketcherFrame = document.getElementById(idToUse);

    if ('contentDocument' in ketcherFrame) {
        return ketcherFrame.contentWindow.ketcher;
    } else { // IE7
        return document.frames[idToUse].window.ketcher;
    }
}

function enterKeyPressed(event){
    // 13 means return/enter
    if (event.which == 13 || event.keyCode == 13) {
        return false;
    }
    return true
};

// Function to attach an RSS feed available at feedUrl and attaches it to attachElement
function loadRSSFeed(attachElement, feedUrl) {
    $.ajax(feedUrl, {
        accepts:{
            xml:"application/rss+xml"
        },
        dataType:"xml",
        success:function(data) {
            $(data).find("item").each(function () {
                var el = $(this);

                document.getElementById(attachElement).innerHTML += '<li class="list-group-item">';
                + '<h4 class="list-group-item-heading">'
                + '<a target="blank" href="' + el.find("link").text() + '">'
                + el.find("title").text()
                + "</a></h4><h6>"
                + el.find("pubDate").text()
                + "</h6><p>"
                + el.find("description").text()
                + "</p></li>";
            });
        }
    });
}

function hasValue(id) {
    var element = document.getElementById(id);
    if(element.value === ""
        || element.value === undefined
        || element.value === null
        || element.value === "undefined"){
        return false;
    }
    return true;
}


function beforePredict(){
    // TODO make it a parameter
    if(!hasValue("smilesinput")) {
        return;
    }

    encodedSMILES = encodeURIComponent($('#smilesinput').val());
    // TODO Fix via templating to set host
    url = "/pathway?rootNode="+ encodedSMILES;

    $.getJSON(url, function(result) {
        // If something is found the returned dict contains the key "pathway" if not it contains "object"
        if(result.pathway){
            // TODO set as param
            attachObjectsAsList("foundPathways", result.pathway);
        } else {
            $("#index-form").submit();
        }
    });
}

function attachObjectsAsList(elementId, objects){
    var content ='<ul class="list-group">';
    var foundone = false;

    for (var obj in objects) {
        if(objects[obj].reviewStatus == "reviewed"){
            content += '<a class="list-group-item" href="' + objects[obj].id + '">';
            content += objects[obj].name;
            content += '</a>';
            foundone = true;
        }
    }

    content += '</ul>';
    console.log(foundone);
    if(foundone){
        $("#foundPathways").append(content);
        $("#foundMatching").modal();
    } else {
        $("#index-form").submit();
    }
}

class Setting {
  constructor(nameInputId, selectedPackagesId, relativeReasoningSelectId, cutoffInputId, evaluationTypeSelectId,
              availableTSSelectId, formsId, tableId, summaryTableId) {
    this.nameInputId = nameInputId;
    this.selectedPackagesId = selectedPackagesId;
    this.relativeReasoningSelectId = relativeReasoningSelectId;
    this.cutoffInputId = cutoffInputId;
    this.evaluationTypeSelectId = evaluationTypeSelectId;
    this.availableTSSelectId = availableTSSelectId;
    this.formsId = formsId;
    this.tableId = tableId;
    this.summaryTableId = summaryTableId;

    // General settings
    this.name = null;
    this.selectedPackages = [];

    // Relative Reasoning related
    this.selectedRelativeReasoning = null;
    this.cutoff = null;
    this.evaluationType = null;

    // parameters such as { "lowPH": 7, "highPH": 8 }
    this.tsParams = {};
  }

  extractName() {
    var tempName = $('#' + this.nameInputId).val()
    if (tempName == '') {
        console.log("Name was empty...");
        return;
    }
    this.name = tempName;
  }

  extractSelectedPackages() {
    var selPacks = $("#" + this.selectedPackagesId + " :selected");
    var ref = this;
    ref.selectedPackages = [];
    selPacks.each(function () {
      var obj = {}
      obj['id'] = this.value;
      obj['name'] = this.text;
      ref.selectedPackages.push(obj);
    });
  }

  extractRelativeReasoning() {
    var tempRR = $('#' + this.relativeReasoningSelectId + " :selected").val()
    if (tempRR == '') {
        console.log("RR was empty...");
        return;
    }
    var obj = {}
    obj['id'] = $('#' + this.relativeReasoningSelectId + " :selected").val()
    obj['name'] = $('#' + this.relativeReasoningSelectId + " :selected").text()
    this.selectedRelativeReasoning = obj;
  }

  extractCutoff() {
    var tempCutoff = $('#' + this.cutoffInputId).val()
    if (tempCutoff == '') {
        console.log("Cutoff was empty...");
        return;
    }
    this.cutoff = tempCutoff;
  }

  extractEvaluationType() {
    var tempEvaluationType = $('#' + this.evaluationTypeSelectId).val()
    if (tempEvaluationType == '') {
        console.log("EvaluationType was empty...");
        return;
    }
    this.evaluationType = tempEvaluationType;
  }

  addTruncator() {
    // triggered by "Add"
    // will extract values and afterwards updates table + summary
    var type = $("#" + this.availableTSSelectId + " :selected").val();
    var text = $("#" + this.availableTSSelectId + " :selected").text();
    var form = $("#" + type + "_form > :input")

    // flag to check whether at least one input had a valid value
    var addedValue = false;

    // reference being used in each
    var ref = this;

    form.each(function() {
        if(this.value == "" || this.value === "undefined"){
            console.log(this);
            console.log("Skipping " + this.name);
        } else {
            var obj = {}
            obj[this.name] = this.value;
            obj['text'] = text;
            ref.tsParams[type] = obj
        }
    });

    this.updateTable();
    this.updateSummaryTable();
  }

  removeTruncator(rowId) {
    var summary = rowId.startsWith("sum") ? true : false;
    // plain key
    var key = rowId.replace(summary ? "sum" : "trunc", "").replace("row", "");

    console.log("Removing " + key);

    // remove the rows
    $("#trunc"+ key + "row").remove();
    if($("#sum"+ key + "row").length > 0) {
        $("#sum"+ key + "row").remove();
    }

    delete this.tsParams[key];
  }

  updateTable() {
    // remove all children
    $('#'+this.tableId + "Body").empty()

    var innerHTML = "<tr>" +
                      "<td>Name</td>" +
                      "<td>Value</td>" +
                      "<td width='10%'>Action</td>" +
                    "</tr>";

    for (var x in this.tsParams) {
      var val = "";
      for (var y in this.tsParams[x]){
        if (y == 'text') {
            continue;
        }
        val += this.tsParams[x][y]

      }
      innerHTML += "<tr id='trunc" + x + "row'>" +
                     "<td>" + this.tsParams[x]['text'] + "</td>" +
                     "<td>" + val + "</td>" +
                     "<td width='10%'>"+
                       "<button type='button' id='" + x + "button' class='form-control' onclick='s.removeTruncator(\"trunc" + x + "row\")'>Remove</button>" +
                     "</td>" +
                   "</tr>";
    }

    $('#'+this.tableId + "Body").append(innerHTML);
  }

  packageRows() {
    var res = '';
    for(var p in this.selectedPackages) {
        var obj = this.selectedPackages[p];
        res += "<tr>" +
                 "<td>Package</td>" +
                 "<td>" + obj['name'] + "</td>" +
                 "<td width='10%'>" +
                   // "<button type='button' id='relativereasoningbutton' class='form-control' onclick='s.removeTruncator(\"Relative Reasoning\")'>Remove</button>" +
                 "</td>" +
               "</tr>";
    }
    return res;
  }

  modelRow() {
    if(this.selectedRelativeReasoning == null) {
      return '';
    }
    return "<tr>" +
             "<td>Relative Reasoning</td>" +
             "<td>" + this.selectedRelativeReasoning['name'] + " " + (this.evaluationType == "singleGen" ? "SG" : "MG") + " with t=" + this.cutoff + " </td>" +
             "<td width='10%'>" +
               // "<button type='button' id='relativereasoningbutton' class='form-control' onclick='s.removeTruncator(\"Relative Reasoning\")'>Remove</button>" +
             "</td>" +
           "</tr>";
  }

  updateSummaryTable() {
    // remove all children
    $('#'+this.summaryTableId + "Body").empty()

    var innerHTML = "<tr>" +
                      "<td>Name</td>" +
                      "<td>Value</td>" +
                      "<td width='10%'>Action</td>" +
                    "</tr>";

    innerHTML += this.packageRows();
    innerHTML += this.modelRow();

    // var innerHTML = ''
    for (var x in this.tsParams) {
      var val = "";
      for (var y in this.tsParams[x]){
        if (y == 'text') {
            continue;
        }
        val += this.tsParams[x][y]

      }
      innerHTML += "<tr id='sum" + x + "row'>" +
                     "<td>" + this.tsParams[x]['text'] + "</td>" +
                     "<td>" + val + "</td>" +
                     "<td width='10%'>"+
                       "<button type='button' id='" + x + "button' class='form-control' onclick='s.removeTruncator(\"sum" + x + "row\")'>Remove</button>" +
                     "</td>" +
                   "</tr>";
    }

    $('#'+this.summaryTableId + "Body").append(innerHTML);
  }


}

// TODO

function queryResultToTable(appendId, result) {
    $('#' + appendId).empty();
    var table = '<table class="table">' +
                   '<thead class="thead-dark">' +
                     '<tr>';

    var header = '';
    for (var r in result['result']) {
        var keys = Object.keys(result['result'][r]);
        for (var k in keys) {
            header += '<th>' + keys[k] + '</th>';
        }
        break;
    }

    table += header;
    table += '</tr>';
    table += '</thead>';
    table += '<tbody>';

    var body = '';
    for (var r in result['result']) {
        body += '<tr>';
        for (var k in result['result'][r]) {
            body += '<td>' + result['result'][r][k] + '</td>';
        }
        body += '</tr>';
    }

    table += body;
    table += '</tbody>';
    table += '</table>';

    $('#' + appendId).append(table);
}

function makeLoadingGif(attachOb, src) {
    // TODO provide SERVER_BASE from outside

    img_src = src === undefined ? 'http://localhost:8080' : src

    var loadingGif = "<div style='text-align:center;'><div class='loading' align='middle'>"
        + "<img id='image-wait' src='" + img_src + "' alt='Loading'" +
    " title='Loading'" +
        " style='text-align:left;margin:0px auto;' align='middle'/>"
        + "</div></div>";
    $(attachOb).html(loadingGif);
    //document.getElementById("image-wait").src = getBasePath() + "/" + "images/wait.gif";
}

function cleanIdName(idName) {
    return idName.replace(/[ \-()]/g, "")
}

function makeAccordionHead(accordionId, accordionTitle, reviewStatus) {
    return "<div class='panel-group' id='" + accordionId + "'>"
            + "<div class='panel panel-default'>"
            + "<div class='panel-heading' id='headingPanel' style='font-size:2rem;height: 46px'>"
            + accordionTitle + reviewStatus
            + "</div><div id='descDiv'></div>"
            + "</div>";
}

function makeAccordionPanel(accordionId, panelName, panelContent, collapsed, id) {
    if(panelContent == "" || panelContent == "no description") {
        return "";
    }
    if(collapsed == true) {
        collapsed = "in";
    } else {
        collapsed = "";
    }
    var panelId =  typeof id === "undefined" ? cleanIdName(panelName) : id;
    return "<div class='panel panel-default panel-heading list-group-item' style='background-color:silver'>"
    + "<h4 class='panel-title'>"
    + "<a id=" + panelId + "Link" + " data-toggle='collapse' data-parent='#" + accordionId + "' href='#" + panelId + "'>"
    + panelName
    + "</a>"
    + "</h4>"
    + "</div>"
    + "<div id='" + panelId + "' class='panel-collapse collapse " + collapsed + "'>"
    + "<div class='panel-body list-group-item' id='"+panelId+"Content'>"
    + panelContent
    + "</div>"
    + "</div>";
}

function makeSearchList(divToAppend, jsonob) {

    if(jsonob.status){
        $(divToAppend).append('<div class="alert alert-danger" role="alert"><p>'+"No results..."+'</p></div>');
        return;
    }

    var content = makeAccordionHead("searchAccordion", "Results","");

    for ( var type in jsonob){
        var obj = jsonob[type];
        var objs = "";
        for ( var x in obj) {
            objs += "<a class='list-group-item' href=\"" + obj[x].id + "\">"
                + obj[x].name + "</a>";
        }
        content += makeAccordionPanel("searchAccordion", type, objs, true);
    }
    $(divToAppend).append(content);

}

function fillPRCurve(modelUri, onclick){
    if (modelUri == '') {
        return;
    }

    // clear div
    $('#plotDiv').empty();

    // for the time being add animation
    makeLoadingGif('#plotDiv');

    $.getJSON(modelUri + "?prcurve", function (result) {
        // remove loading gif
        $('#plotDiv').empty();

        // check if model is in a proper state
        if(result.hasOwnProperty('error')){
            var content = '<div>'+result.error+' \nYou can check the model <a href="' + modelUri + '">here</a>. </div>';
            $('#plotDiv').append(content);
            return
        }

        var chartPanel = '<div id="chart" class="panel-group"></div>';
        $('#plotDiv').append(chartPanel);

        // Labels
        var x = ['Recall'];
        var y = ['Precision'];
        var thres = ['threshold'];

        // Compare function for the given array
        function compare(a, b) {
            if (a.threshold < b.threshold)
                return -1;
            else if (a.threshold > b.threshold)
                return 1;
            else
                return 0;
        }

        // gets the index for a certain value
        function getIndexForValue(data, val, val_name) {
            for(var idx in data) {
                if(data[idx][val_name] == val) {
                    return idx;
                }
            }
            return -1;
        }

        var data = result.prdata;
        var dataLength = Object.keys(data).length;
        data.sort(compare);

        // collect data in 3 individual arrays
        for (var idx in data) {
            var d = data[idx];
            x.push(d.recall);
            y.push(d.precision);
            thres.push(d.threshold);
        }

        // generate the actual chart with values collected above
        var chart = c3.generate({
            bindto: '#chart',
            data: {
                onclick: function (d, e) {
                    var idx = d.index;
                    var thresh = data[dataLength-idx-1].threshold;

                    onclick(thresh)

                },
                x: 'Recall',
                y: 'Precision',
                columns: [
                    x,
                    y,
                    //thres
                ]
            },
            size: {
                height: 400, // TODO: Make variable to current modal width
                width: 480
            },
            axis: {
                x: {
                    max: 1,
                    min: 0,
                    label: 'Recall',
                    padding: 0,
                    tick: {
                        fit: true,
                        values: [0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0]
                    }
                },
                y: {
                    max: 1,
                    min: 0,
                    label: 'Precision',
                    padding: 0,
                    tick: {
                        fit: true,
                        values: [0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0]
                    }
                }
            },
            point: {
                r: 4
            },
            tooltip: {
                format: {
                    title: function (recall) {
                        idx = getIndexForValue(data, recall, "recall");
                        if(idx != -1) {
                            return "Threshold: " + data[idx].threshold;
                        }
                        return "";
                    },
                    value: function (precision, ratio, id) {
                        return undefined;
                    }
                }
            },
            zoom: {
                enabled: true
            }
        });

    });
}