{% extends "base.html" %}

{% block title %} Answer question {% endblock %}

{% block script %}
<script type="text/javascript">
<!--
var time_left = {{ time_left }};

function submitCode()
{
    document.forms["code"].submit();
    var x = document.getElementById("status");
    x.innerHTML = "<strong>Checking answer ...</strong>";
    x = document.getElementById("check");
    x.disabled = true;
    x.value = "Checking Answer ...";
    document.getElementById("skip").disabled = true;
}

function secs_to_time(secs)
{
    var h = Math.floor(secs/3600);
    var h_s = (h > 0) ? h+'h:' : '';
    var m = Math.floor((secs%3600)/60);
    var m_s = (m > 0) ? m+'m:' : '';
    var s_s = Math.floor(secs%60) + 's';
    return h_s + m_s + s_s;
}

function update_time()
{
    time_left -= 1;
    if (time_left) {
        var elem = document.getElementById("time_left");
        var t_str = secs_to_time(time_left);
        elem.innerHTML = "<strong> Time left: " + t_str + "</strong>";
        setTimeout("update_time()", 1000);
    }
    else {
        document.forms["code"].submit();
    }
}
//-->
</script>
{% endblock script %}

{% block onload %} onload="update_time()" {% endblock %}

{% block content %}
<h3> {{ question.summary }} </h3>

<p>{{ question.description }}
<br/>
(Marks: {{ question.points }}) </p>

{% if error_message %}<p><strong>ERROR:</strong></p><pre>{{ error_message }}</pre>{% endif %}

<p id="status"></p>

<form id="code" action="{{URL_ROOT}}/exam/{{ question.id }}/check/" method="post">
{% csrf_token %}

<textarea rows="20" cols="100" name="answer">
{% if last_attempt %}{{last_attempt}}{% else %}# Enter your answer here.{% endif %}
</textarea>

<br/>

<input id="check" type="submit" name="check" value="Check Answer"
onclick="submitCode();"/>
<input id="skip" type="submit" name="skip" value="Skip question" />
</form>

<p> {{ user.first_name.title }} {{ user.last_name.title }}, 
you have  {{ paper.questions_left }} question(s) left in {{ quiz_name }}.</p>

<p id="time_left"> <strong> Time left:  </strong> </p>

<hr/>
<form id="logout" action="{{URL_ROOT}}/exam/quit/" method="post">
{% csrf_token %}
<input type="submit" name="quit" value="Quit exam and logout" />
</form>

{% endblock content %}