{% extends "base.jinja2" %}

{% block page_title %}{{ title }}{% endblock %}

{% block jumbotron %}
  <h1>{{page_headline}}</h1>
  <p>Design your label and print it...</p>
  <!--<p><a class="btn btn-primary btn-lg" href="#" role="button">History of printed labels</a></p>-->
{% endblock %}

{% block content %}
  <div class="row">
    <div class="col-md-4">
      <fieldset class="form-group">
        <div class="panel-group" id="accordion">
          <div class="panel panel-default">
            <div class="panel-heading">
              <h4 class="panel-title">
                <a data-toggle="collapse" data-parent="#accordion" href="#collapse1">
                <span class="glyphicon glyphicon-file" aria-hidden="true"></span> Label Size</a>
              </h4>
            </div>
            <div id="collapse1" class="panel-collapse collapse">
              <div class="chooser panel-body">
              <label for="labelSize" style="display: none">Label Size:</label>
              <select class="form-control" id="labelSize" onChange="preview()">
                {% for label_size in label_sizes %}<option value="{{label_size[0]}}">{{label_size[1]}}</option>{% endfor %}
              </select>
             </div> <!-- class="chooser panel-body" -->
            </div>
          </div>
          <div class="panel panel-default">
            <div class="panel-heading">
              <h4 class="panel-title">
                <a data-toggle="collapse" data-parent="#accordion" href="#collapse2">
                  <span class="glyphicon glyphicon-text-size" aria-hidden="true"></span>
                  <!-- <span class="glyphicon glyphicon-text" aria-hidden="true"></span> -->
                  Font Settings
                </a>
              </h4>
            </div>
            <div id="collapse2" class="panel-collapse collapse in">
              <div class="chooser panel-body">
              <label for="fontFamily">Font Family:</label>
              <select class="form-control" id="fontFamily" onChange="preview()">
                {% for font in fonts %}<option>{{font}}</option> {% endfor %}
              </select>
              <label for="fontSize" >Font Size:</label>
              <input id="fontSize" class="form-control" type="number" min="1" value="70" max="150" onChange="preview()" required>
              <label for="fontAlign" class="control-label input-group">Font Alignment:</label>
              <div class="btn-group" data-toggle="buttons">
                  <label class="btn btn-default">
                      <input type="radio" name="fontAlign" onchange="preview()" value="left" aria-label="Left Align"><span class="glyphicon glyphicon-align-left" aria-hidden="true"></span>
                  </label>
                  <label class="btn btn-default active">
                      <input type="radio" name="fontAlign" onchange="preview()" value="center" aria-label="Center Align" checked=""><span class="glyphicon glyphicon-align-center" aria-hidden="true"></span>
                  </label>
                  <label class="btn btn-default">
                      <input type="radio" name="fontAlign" onchange="preview()" value="right" aria-label="Right Align"><span class="glyphicon glyphicon-align-right" aria-hidden="true"></span>
                  </label>
              </div>
              </div> <!-- class="chooser panel-body" -->
            </div>
          </div>
          <div class="panel panel-default">
            <div class="panel-heading">
              <h4 class="panel-title">
                <a data-toggle="collapse" data-parent="#accordion" href="#collapse3">
                Detailed Settings</a>
              </h4>
            </div>
            <div id="collapse3" class="panel-collapse collapse">
              <div class="chooser panel-body">
                Some more settings will show here, once implemented.
              </div> <!-- class="chooser panel-body" -->
            </div>
          </div>
        </div>
      </fieldset>
    </div>
    <div class="col-md-4">
      <fieldset class="form-group">
        <label for="labelText">Label Text:</label>
        <textarea rows="7" id="labelText" class="form-control" onChange="preview()" onInput="preview()"></textarea>
      </fieldset>
    </div>
    <div class="col-md-4">
      <fieldset class="form-group">
        <label for="previewImg">Label Preview:</label>
        <img id="previewImg" style="border: 1px solid #444; width: 90%; margin: 5%;"/>
         <button id="printButton" type="button" class="btn btn-primary btn-block btn-lg" onClick="print()">
           <span class="glyphicon glyphicon-print" aria-hidden="true"></span> Print
         </button>
      </fieldset>
      <div class="panel panel-default">
        <div class="panel-heading">
          <h3 class="panel-title">Status</h3>
        </div>
        <div id="statusPanel" class="panel-body">
          - undefined -
        </div>
      </div>
    </div>
  </div>
{% endblock %}

{% block javascript %}
var text = $('#labelText');

function formData() {
  //var text = $('#labelText').val().replace(/\n/g, "%0A");
  var text = $('#labelText').val();
  if (text == '') text = ' ';
  return {
    text:        text,
    font_family: $('#fontFamily option:selected').text(),
    font_size:   $('#fontSize').val(),
    label_size:  $('#labelSize option:selected').val(),
    align:       $('input[name=fontAlign]:checked').val()
  }
}

function preview() {
  $.ajax({
    type:        'POST',
    url:         '/api/preview/text?return_format=base64',
    contentType: 'application/x-www-form-urlencoded; charset=UTF-8',
    data:        formData(),
    success: function( data ) {
      $('#previewImg').attr('src', 'data:image/png;base64,' + data);
    }
  });
}

function setStatus(data) {
  if (data['success'])
    $('#statusPanel').html('<div id="statusBox" class="alert alert-success" role="alert"><i class="glyphicon glyphicon-check"></i><span>Printing was successful.</span></div>');
  else
    $('#statusPanel').html('<div id="statusBox" class="alert alert-warning" role="alert"><i class="glyphicon glyphicon-alert"></i><span>Printing was unsuccessful:<br />'+data['message']+'</span></div>');
  $('#printButton').prop('disabled', false);
}

function print() {
  $('#printButton').prop('disabled', true);
  $('#statusPanel').html('');
  $.ajax({
    type:     'POST',
    dataType: 'json',
    data:     formData(),
    url:      '/api/print/text',
    success:  setStatus,
    error:    setStatus
  });
}

preview()

{% endblock %}