%link{ :href=>"/jsme/jsa.css", :rel=>"stylesheet", :property=>"stylesheet"}
%script{:src=>"/jsme/jsme.nocache.js"}
:javascript
  var HttpClient = function() {
    this.get = function(aUrl, aCallback) {
    var anHttpRequest = new XMLHttpRequest();
    anHttpRequest.onreadystatechange = function() {
    if (anHttpRequest.readyState == 4 && anHttpRequest.status == 200)
      aCallback(anHttpRequest.responseText);
    }
      anHttpRequest.open( "GET", aUrl, true );
      anHttpRequest.send( null );
    }
  };

  /*$(function() { 
    $('a[data-toggle="tab"]').on('click', function (e) {
      localStorage.setItem('lastTab', $(e.target).attr('href'));
    });
    var lastTab = localStorage.getItem('lastTab');
    if (lastTab) {
      $('a[href="'+lastTab+'"]').click();
    }
  });*/  
  
  function getInput(){
    identifier = document.getElementById("identifier").value.trim();
    fileselect = document.getElementById("fileselect").value;
    if (fileselect != ""){
      return 1;
    };
    if (identifier != ""){
      return 2;
    };
    return 0;
  };
  function showcircle() {
    switch (getInput()){
      case 0:
        alert("Please draw or insert a chemical structure.");
        return false;
        break;
      case 1:
        if (checkfile() && checkboxes()){
          button = document.getElementById("submit");
          image = document.getElementById("circle");
          button.parentNode.replaceChild(image, button);
          $("img.circle").show();
          return true;
        };
        return false;
        break;
      case 2:
        if (checksmiles() && checkboxes()){
          button = document.getElementById("submit");
          image = document.getElementById("circle");
          button.parentNode.replaceChild(image, button);
          $("img.circle").show();
          return true;
        };
        return false;
        break;
      default: false;
    };
    return false;
  };
  function checkfile() {
    var fileinput = document.getElementById("fileselect");
    if(fileinput.value != "") {
      //TODO check file type is csv
      return true;
    };
    alert("Please select a file (csv).");
    return false;
  };
  function checksmiles () {
    getsmiles();
    if (document.form.identifier.value == "") {
      alert("Please draw or insert a chemical structure.");
      document.form.identifier.focus();
      $("img.circle").hide();
      return false;
    };
    return true;
  };
  function checkboxes () {
    var checked = false;
    $('input[type="checkbox"]').each(function() {
      if ($(this).is(":checked")) {
        checked = true;
      };
    });
    if (checked == false){
      alert("Please select an endpoint.");
      $("img.circle").hide();
      return false;
    };
    return true;
  };
  function jsmeOnLoad() {
    jsmeApplet = new JSApplet.JSME("appletContainer", "380px", "340px", {
      //optional parameters
      "options" : "polarnitro"
    });
  document.JME = jsmeApplet;
  };
  function getsmiles() {
    if (document.JME.smiles() != '') {
      document.form.identifier.value = document.JME.smiles() ;
    };
  };

  function loadDetails(id) {
    button = document.getElementById("link"+id);
    span = button.childNodes[1];
    if (span.className == "fa fa-caret-right"){
      span.className = "fa fa-caret-down";
    } else if (span.className = "fa fa-caret-down"){
      span.className = "fa fa-caret-right";
    };
    image = document.getElementById("circle"+id);
    if ($('modeldetails'+id).length == 0) {
      $(button).hide();
      $(image).show();
      aClient = new HttpClient();
      aClient.get("#{to("/predict/modeldetails/")}"+id, function(response) {
        var details = document.createElement("modeldetails"+id);
        details.innerHTML = response;
        document.getElementById("details"+id).appendChild(details);
        $(button).show();
        $(image).hide();
        addExternalLinks();
      });
    }
  }
// whole site content needs to be in one form. Input and checkboxes are proofed by js functions. 
%form{:name => "form", :action => to('/predict'), :method => "post", :enctype => "multipart/form-data", :onsubmit => "return !!(showcircle())" }
  %fieldset#top.card.bg-light
    #insert.card-body
      %h2.card-title 1. Draw a chemical structure
      %label  
      #appletContainer.d-flex
      %br
      %p
        %label{:for => 'identifier'}
          or enter the
          %a{:href => "http://en.wikipedia.org/wiki/Simplified_molecular_input_line_entry_specification", :rel => "external"} SMILES
          string:
        %input.form-control{:type => 'text', :name => 'identifier', :id => 'identifier'}
      %p{:style=>"display:none;"}
        %label{:for=>"fileselect"}
          or upload a CSV file for batch predictions:
        %br
        %input.form-control-file{:type=>"file", :name=> "fileselect", :id=>"fileselect", :accept=>"text/csv"}

  %fieldset#middle.card.bg-light
    #models.card-body
      %h2.card-title 2. Select one or more endpoints
      - @endpoints.each do |endpoint|
        %div.card{:id=>endpoint.gsub(/\s+/, "_")}
          %div.card-header
            %h5.card-title=endpoint
          %div.card-body
            - @models.select{|m| m.endpoint == endpoint}.each do |model|
              %div.row{:id => model.id,:style=>"margin-bottom:1em;"}
                %span.col-6
                  %input{:type => "checkbox", :name => "selection[#{model.id}]", :id => "selection[#{model.species.gsub(/\s+/, "_")}]", :value => true, :disabled => false}
                  %label{:for => "selection[#{model.species.gsub(/\s+/, "_")}]"}
                    = model.species
                %span.col-6
                  %a.btn.btn-outline-info{:role=>"button", :data=>{:toggle=>"collapse"}, :href=>"#details#{model.id}", :aria=>{:expanded=>"false", :controls=>"details#{model.id}"}, :onclick=>"loadDetails('#{model.id}')", :id => "link#{model.id}", :style=>"font-size:small;"}
                    %span.fa.fa-caret-right
                    Details | Validation
                  %img.h2{:src=>"/images/wait30trans.gif", :id=>"circle#{model.id}", :class=>"circle#{model.id}", :alt=>"wait", :style=>"display:none;"}
              %div.collapse{:id=>"details#{model.id}", :style=>"margin-left:1em;"}
  %fieldset#bottom.card.bg-light
    %div.card-body
      %h2.card-title 3. Predict
      %button.has-feedback.btn.btn-primary.btn-lg{:type => "submit", :id => "submit", :value=>"", :onclick => "getsmiles()"}
        %span.fa.fa-play
      %img.h2{:src=>"/images/wait30trans.gif", :id=>"circle", :class=>"circle", :alt=>"wait", :style=>"display:none;"}