{{ block content }}
<div class="card">
    <div class="card-body" style="text-align: justify">
        <span style="font-size: 16px;">
        <b>Information about the pair.</b>
        <p>
        The pair was formed by Agent 3 and Agent 4.
        </p>
        <p>
        <b>Read carefully: Both Agents participated in a coin toss</b>.
        </p>
        <p>
        Both Agents received a payment for their participation.
        </p>
        <p>
        An additional bonus of 6 USD was initially assigned to the agent that <u>won a coin toss</u>.
        </p>
        <p>
        Agent 3 won the coin toss and was initially assigned the full bonus.
        </p>
        </span>
    </div>
</div>
<br>

<div class="card">
    <div class=card-header>
        <b>How would you split the 6 USD bonus?</b>
    </div>
    <div class="card-body">    
        <br>
        <table>
            <tr class="title-row-upper">
                <td class='column2title'>Agent 3</td>
                <td class='column3title'><input name='sg3' id=agenta class="short-input" type="number" min="0" max="6" step="1" placeholder="Starts with 6"></td>
            </tr>
            <tr class="title-row-lower">
                <td class="column2">Agent 4</td>
                <td class="column3"><input name='sg4' id=agentb class="short-input" type="number" min="0" max="6" step="1" placeholder="Starts with 0"></td>
            </tr>
            <tr class="gray-row">
                <td colspan="2">&nbsp;</td>
            </tr>
            <tr class="bottom-row">
                <td><b>Total: </b></td>
                <td class="column3"><span id="sum" class="invalid">0</span></td>
            </tr>
            <tr>
                <td></td>
            </tr>
            <tr>
                <td ></td>
                <td colspan="1" style="text-align: right"><button id="next-button" class="otree-btn-next btn btn-dark btn-primary" disabled>Decide</button></td>
            </tr>
        </table>
        <br>
    </div>
</div>

<br><br><br>
<div class="card">
    <div class="card-body" style="text-align: justify">
        <span style="font-size: 12px;"><b>Instructions</b></span>
        <p>
            <span style="font-size: 12px;">
                Write how much bonus payments you want each agent to receive. 
                Remember the sum of bonus payments must equal 6 USD and there are no costs to yourself. 
            </span>
        </p>
        <span style="font-size: 12px;"><b>Time on screen</b></span>
        <p>
            <span style="font-size: 12px;">
                Your answers need to sum 6 USD.
                If not, you will not be able to submit them and proceed to the next page.
            </span>
        </p>
    </div>
</div>

{{ endblock }}

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

    <style>
        /*Table*/
        table {margin-left: 0; margin-right: auto;}
        td {vertical-align: middle;}
        .column2 {width: 300px; text-align: left}
        .column2title {width: 300px; text-align: left}
        .column3 {width: 75px; text-align: center}
        .column3title {width: 75px; text-align: center}
        .column25 {width: 100px; text-align: right}
        .title-row-upper td {border-top: 2px solid black; padding-top: 10px}
        .title-row-lower td {border-bottom: 2px solid black; padding-bottom: 10px}
        .bottom-row td {border-bottom: 2px solid black; padding-bottom: 10px}
        tr.gray-row {color: gray; font-size: 5px}

        /*Input*/
        .short-input {
            width: 100px; 
            text-align: center; 
            padding: 5px; 
        }
        /*Button*/
        .btn {width: 150px;}

        #sum {
        font-weight: bold;
        }
        .valid {
        color: green;
        }
        .invalid {
        color: red;
        }
    </style>
{{ endblock }}

{{ block script }}
    <script>
        const inputs = [
            document.getElementById('agenta'),
            document.getElementById('agentb'),
        ];
        const sumDisplay = document.getElementById('sum');
        const nextBtn = document.getElementById('next-button');

        function updateSum() {
            const sum = inputs.reduce((acc, input) => acc + Number(input.value), 0);
            sumDisplay.textContent = sum;
            sumDisplay.className = (sum === 6) ? 'valid' : 'invalid';
            nextBtn.disabled = (sum !== 6);
        }

        inputs.forEach(input => input.addEventListener('input', updateSum));
    </script>
{{ endblock }}