{{ block title }} Task {{ task_order }}{{ endblock }}
{{ block content }}

<p>
    If this task is the one that has been selected for payment, you will get {{Constants.bundle_x0y3_x}} piece of chocolate
    and {{Constants.bundle_x0y3_y}} dollars for you to keep.
    <br> <br> You are provided the opportunity to trade this for an alternative option containing
    {{Constants.bundle_x1y0_x}} pieces of chocolate and {{Constants.bundle_x1y0_y}} dollars.
</p>

<img src="{{ static 'incomplete_preference/Exchange_y3x1.png' }}" style="width: 750px" align="middle"/>


<input type="hidden" name="time_spent_exchange_x1y3" id="time_spent_exchange_x1y3">
{{ formfield_errors "time_spent_exchange_x1y3" }}

<input type="hidden" name="exchange_x1y3" id="exchange_x1y3">
{{ formfield_errors "exchange_x1y3" }}
<input type="hidden" name="exchange_x1y3_num" id="exchange_x1y3_num">
{{ formfield_errors "exchange_x1y3_num" }}
<form method="post" id="form" type="hidden">
<table class="table table-striped">
    <colgroup>
        <col width="10%">
        <col width="90%">
    </colgroup>
    <tr>
    <td align="middle">  <input type="radio"
               value="x0y3"
               name="exchange_x1y3_1"
               required>
    </td>
    <td align="left"> keep the bundle I have </td>
    </tr>
    <tr>
    <td align="middle">  <input type="radio"
               value="x1y0"
               name="exchange_x1y3_1"
               required>
    </td>
    <td align="left"> change to the alternative option </td>
    </tr>
</table>

<button type="button" class="btn btn-primary" onClick="submitForm();">Next</button>
</form>

{{ endblock }}

{{ block scripts }}

<script>
    let allRadios = document.querySelectorAll('input[type=radio]');
    function submitForm() {
        let form = document.getElementById('form');
        let checkedRadios = document.querySelectorAll('input[type=radio]:checked');
        if  (checkedRadios.length === 1) {
            for (let radio of allRadios) {
                if (radio.value === 'x0y3' && radio.checked) {
                    let choice = document.getElementById('exchange_x1y3');
                    let choice_num = document.getElementById('exchange_x1y3_num');
                    choice.value = "x0y3";
                    choice_num.value = "1";
                }
                if (radio.value === 'x1y0' && radio.checked) {
                    let choice = document.getElementById('exchange_x1y3');
                    let choice_num = document.getElementById('exchange_x1y3_num');
                    choice.value = "x1y0";
                    choice_num.value = "2";
                }
            }
            let timeSpent = Date.now() - startTime;
            // save the number in the hidden field
            document.getElementById('time_spent_exchange_x1y3').value = timeSpent;
            form.submit()
        }
        if (checkedRadios.length === 0) {
            alert('Please make a choice')
        }
    }

    window.onload = function() {
        startTime = Date.now();
        }

</script>


{{ endblock }}