{% extends "base.html" %}

{% block content %}
<div class="container mt-4">
    <h2>Review Calibration</h2>
    
    <div class="card mb-4">
        <div class="card-body">
            <h5 class="card-title">Calibration Details</h5>
            <div class="row">
                <div class="col-md-6">
                    <p><strong>Channel Serial:</strong> {{ calibration.channels.serial_number }}</p>
                    <p><strong>Date:</strong> {{ calibration.date }}</p>
                    <p><strong>Calibrated By:</strong> {{ calibration.calibrated_by.name }}</p>
                </div>
                <div class="col-md-6">
                    <p><strong>Scale:</strong> {{ calibration.scale }}</p>
                    <p><strong>Offset:</strong> {{ calibration.offset }}</p>
                    <p><strong>Status:</strong> 
                        <span class="badge bg-{{ 'success' if calibration.passed else 'danger' }}">
                            {{ 'Passed' if calibration.passed else 'Failed' }}
                        </span>
                    </p>
                </div>
            </div>
        </div>
    </div>

    <div class="card mb-4">
        <div class="card-body">
            <h5 class="card-title">Measurements</h5>
            <table class="table">
                <thead>
                    <tr>
                        <th>Point</th>
                        <th>Set Value</th>
                        <th>Deviation</th>
                    </tr>
                </thead>
                <tbody>
                    <tr>
                        <td>High</td>
                        <td>{{ calibration.set_high }}</td>
                        <td>{{ calibration.deviation_high }}</td>
                    </tr>
                    <tr>
                        <td>Mid</td>
                        <td>{{ calibration.set_mid }}</td>
                        <td>{{ calibration.deviation_mid }}</td>
                    </tr>
                    <tr>
                        <td>Low</td>
                        <td>{{ calibration.set_low }}</td>
                        <td>{{ calibration.deviation_low }}</td>
                    </tr>
                </tbody>
            </table>
        </div>
    </div>

    <form method="POST" action="{{ url_for('calibrations.review_calibration', calibration_id=calibration.id) }}">
        <input type="hidden" name="reviewer_id" value="{{ current_user.id }}">
        
        <div class="mb-3">
            <label class="form-label">Electronic Signature</label>
            <div id="signaturePad" style="border: 1px solid #ddd; height: 200px;"></div>
            <input type="hidden" name="signature" id="signatureData">
            <button type="button" class="btn btn-secondary mt-2" id="clearSignature">Clear</button>
        </div>

        <button type="submit" class="btn btn-primary">Submit Review</button>
    </form>
</div>

<script src="https://cdn.jsdelivr.net/npm/signature_pad@4.0.0/dist/signature_pad.umd.min.js"></script>
<script>
document.addEventListener('DOMContentLoaded', function() {
    const canvas = document.createElement('canvas');
    canvas.width = document.getElementById('signaturePad').offsetWidth;
    canvas.height = 200;
    document.getElementById('signaturePad').appendChild(canvas);
    
    const signaturePad = new SignaturePad(canvas);
    
    document.getElementById('clearSignature').addEventListener('click', function() {
        signaturePad.clear();
    });
    
    document.querySelector('form').addEventListener('submit', function(e) {
        if (signaturePad.isEmpty()) {
            e.preventDefault();
            alert('Please provide your signature');
        } else {
            document.getElementById('signatureData').value = signaturePad.toDataURL();
        }
    });
});
</script>
{% endblock %}