{{ block title }}{{ endblock }}

{{ block content }}
<link rel="stylesheet" href="{{ static 'css/css.css' }}">

<style>
    .svo-item {
        margin-bottom: 28px;
        padding: 16px 20px;
        background: #f9f9f9;
        border: 1px solid #ddd;
        border-radius: 8px;
    }
    .svo-item-incomplete {
        border: 2px solid #ffc107 !important;
        background: #fffbe6 !important;
    }
    .svo-item-header {
        font-weight: bold;
        margin-bottom: 12px;
        font-size: 0.95em;
        color: #333;
    }
    .svo-options {
        display: flex;
        gap: 6px;
        flex-wrap: wrap;
        align-items: flex-end;
        overflow-x: auto;
    }
    .svo-option {
        flex: 1;
        min-width: 70px;
        text-align: center;
    }
    .svo-option label {
        display: block;
        cursor: pointer;
        padding: 8px 4px;
        border: 2px solid #ddd;
        border-radius: 6px;
        font-size: 0.85em;
        transition: border-color 0.15s, background 0.15s;
        background: #fff;
    }
    .svo-option input[type="radio"] {
        margin-bottom: 4px;
        accent-color: #D95F02;
    }
    .svo-option input[type="radio"]:checked + .svo-label-text,
    .svo-option label:has(input:checked) {
        border-color: #D95F02;
        background: #FFF3E0;
    }
    .svo-self  { color: #D95F02; font-weight: bold; }
    .svo-other { color: #2E75B6; font-weight: bold; }
    .svo-ec-unit { font-size: 0.78em; font-weight: normal; color: #888; }
</style>

<div class="content-box box-neutral">
    <h2 class="section-title">Allocation Preferences</h2>
    <hr class="section-divider">

    <p style="text-align:center; color:#555; margin-bottom:8px;">
        For each of the 6 items below, choose the allocation you most prefer.
        There are no right or wrong answers.
    </p>
    <p style="text-align:center; font-size:0.9em; color:#777; margin-bottom:6px;">
        <span style="color:#D95F02; font-weight:bold;">Orange = Your allocation (ECs)</span> &nbsp;|&nbsp;
        <span style="color:#2E75B6; font-weight:bold;">Blue = Other person's allocation (ECs)</span>
    </p>
    <p style="text-align:center; font-size:0.88em; color:#888; margin-bottom:6px;">
        &#128269; If this task is selected for payment, one of the 6 items will be chosen at random to be implemented.
    </p>
    <p style="text-align:center; font-size:0.9em; color:#777; margin-bottom:24px;">
        &#9888; You must make a selection for <strong>all 6 items</strong> before continuing.
        Items with a yellow border have not yet been answered.
    </p>

    <!-- Hidden oTree form fields -->
    <div style="display:none">
        {% for field in form %}
            {{ formfield field.name }}
        {% endfor %}
    </div>

    {% for item in svo_items %}
    <div class="svo-item svo-item-incomplete" id="svo-item-{{ item.num }}">
        <div class="svo-item-header">Item {{ item.num }}</div>
        <div class="svo-options">
            {% for opt in item.options %}
            <div class="svo-option">
                <label>
                    <input type="radio" name="svo_radio_{{ item.num }}"
                           value="{{ opt.idx }}"
                           onchange="syncSVO({{ item.num }}, {{ opt.idx }})">
                    <div>
                        <span class="svo-self">{{ opt.self }}<span class="svo-ec-unit">&thinsp;ECs</span></span><br>
                        <span class="svo-other">{{ opt.other }}<span class="svo-ec-unit">&thinsp;ECs</span></span>
                    </div>
                </label>
            </div>
            {% endfor %}
        </div>
        <!-- <div style="margin-top:6px; font-size:0.78em; color:#888; display:flex; gap:4px;">
            <span style="flex:1; text-align:left;">&larr; Favour other more</span>
            <span style="flex:1; text-align:center;">Balanced</span>
            <span style="flex:1; text-align:right;">Favour self more &rarr;</span>
        </div> -->
    </div>
    {% endfor %}

    <div id="svo-error" style="display:none; margin-top:16px; padding:10px 16px; background:#fdecea; border-left:4px solid #c62828; border-radius:4px; color:#c62828; font-size:0.93em;">
        &#9888; Please make a selection for <strong>all 6 items</strong> before continuing.
    </div>

    <div class="buttons-container" style="margin-top:30px;">
        <div></div>
        <button id="NextButton" class="btn btn-primary" onclick="finalSyncSVO(event)">Next &rarr;</button>
    </div>
</div>

<script>
    var svoTouched = new Set();

    function syncSVO(itemNum, chosenIdx) {
        var hidden = document.querySelector('input[name="svo_choice_' + itemNum + '"]');
        if (hidden) hidden.value = chosenIdx;
        svoTouched.add(itemNum);
        var itemEl = document.getElementById('svo-item-' + itemNum);
        if (itemEl) itemEl.classList.remove('svo-item-incomplete');
    }

    function finalSyncSVO(evt) {
        if (evt) evt.preventDefault();
        // Sync any checked radios to hidden fields
        for (var i = 1; i <= 6; i++) {
            var selected = document.querySelector('input[name="svo_radio_' + i + '"]:checked');
            if (selected) syncSVO(i, parseInt(selected.value));
        }
        // Validate all 6 items answered
        if (svoTouched.size < 6) {
            document.getElementById('svo-error').style.display = 'block';
            window.scrollTo({ top: 0, behavior: 'smooth' });
            return;
        }
        document.getElementById('svo-error').style.display = 'none';
        var form = document.querySelector('form');
        if (form) form.submit();
    }

    document.addEventListener('DOMContentLoaded', function() {
        var form = document.querySelector('form');
        if (form) {
            form.addEventListener('submit', function(evt) {
                if (svoTouched.size < 6) {
                    evt.preventDefault();
                    document.getElementById('svo-error').style.display = 'block';
                    window.scrollTo({ top: 0, behavior: 'smooth' });
                }
            });
        }
    });
</script>

{{ endblock }}