{% extends "admin/base_site.html" %}
{% load admin_static %}

{% block extrastyle %}
<style>
  div#period_choice { margin: 0 auto; text-align: center;}
  select#section_select { width: 8em; margin-right: 2em; }
  select#period_select { width: 16em; }

  div#student_choice { float: left; }
  select#student_select { width: 16em; }

  div#corp_choice { float: right; }
  select#corp_select { width: 16em; }

  div#student_detail { float:left; width: 30%; margin: 1em; }
  div#corp_detail { float:left; width: 30%; margin: 1em; }

  div#training_form { text-align: center; }
  input#valid_training { display: none; }
</style>
{% endblock %}

{% block extrahead %}
<script type="text/javascript" src="{% static "admin/js/jquery.js" %}"></script>
<script type="text/javascript">
function update_periods(section_id) {
  $.getJSON('/section/' + section_id + '/periods/', function(data) {
    var sel = $('#period_select');
    sel.append($("<option />").val('').text('-------'));
    if (data.length > 0) {
      $.each(data, function() {
        sel.append($("<option />").val(this[0]).text(this[1]));
      })
    }
    update_students('');
    update_corporations('');
  });
}

function update_students(period_id) {
  $('#student_select').find('option').remove();
  $('#student_detail').html('');
  current_student = null;
  $('input#valid_training').hide()
  if (period_id == '') return;
  $.getJSON('/period/' + period_id + '/students/', function(data) {
    var sel = $('#student_select');
    $.each(data, function() {
      sel.append($("<option />").val(this.id).text(this.name));
    })
  });
}

function update_corporations(period_id) {
  $('#corp_select').find('option').remove();
  $('#corp_detail').html('');
  current_corp = null;
  $('input#valid_training').hide()
  if (period_id == '') return;
  $.getJSON('/period/' + period_id + '/corporations/', function(data) {
    var sel = $('#corp_select');
    $.each(data, function() {
      sel.append($("<option />").val(this[0]).text(this[1]));
    })
  });
}

$(document).ready(function() {
  $('#section_select').change(function(ev) {
    // Update period list when section is modified
    $('#period_select').find('option').remove();
    update_periods($(this).val());
  });

  $('#period_select').change(function(ev) {
    // Update student/corporation list when period is modified
    update_students($(this).val());
    update_corporations($(this).val());
  });

  $('#student_select').change(function(ev) {
    $('#student_detail').load('/student/' + $(this).val() + '/summary/');
    current_student = $(this).val();
    if (current_corp !== null) $('input#valid_training').show()
  });

  $('#corp_select').change(function(ev) {
    $('#corp_detail').load('/corporation/' + $(this).val() + '/summary/');
    current_corp = $(this).val();
    if (current_student !== null) $('input#valid_training').show()
  });

  $('#valid_training').click(function() {
    $.post('/training/new/', {period: $('#period_select').val(), student: current_student, corp: current_corp},
        function(data) {
        // On response: remove student from list, remove corp if no more avails
        if (data == 'OK') alert("OK");
    });
  });

  update_periods($('#section_select').val());
});

var current_student = null;
var current_corp = null;
</script>
{% endblock %}

{% block content %}
<div id="period_choice">
  <form>
    <label for="section_select">Filière:</label>
    <select id="section_select">{% for sect in sections %}<option value="{{ sect.id }}">{{ sect.name }}</option>{% endfor %}</select>
    <label for="period_select">Période:</label>
    <select id="period_select"></select>
  </form>
</div>

<div id="student_choice">
  <form>
    <select id="student_select" size="15"></select>
  </form>
</div>

<div id="corp_choice">
  <form>
    <select id="corp_select" size="15"></select>
  </form>
</div>

<div id="training_main">
  <div id="student_detail"></div>
  <div id="corp_detail"></div>
  <div id="training_form"><input id="valid_training" type="button" value="Valider ce stage"></div>
</div>
{% endblock %}