{% extends "base.html" %}

{% block title %}Regenerate Recovery Key - Stego{% endblock %}

{% block content %}
<div class="row justify-content-center">
    <div class="col-md-8 col-lg-6">
        <div class="card">
            <div class="card-header text-center">
                <i class="bi bi-arrow-repeat fs-1 d-block mb-2"></i>
                <h5 class="mb-0">{{ 'Regenerate' if has_existing else 'Generate' }} Recovery Key</h5>
            </div>
            <div class="card-body">
                {% if has_existing %}
                <!-- Warning for existing key -->
                <div class="alert alert-warning">
                    <i class="bi bi-exclamation-triangle me-2"></i>
                    <strong>Warning:</strong> Your existing recovery key will be invalidated.
                    Make sure to save this new key before continuing.
                </div>
                {% else %}
                <!-- Info for first-time setup -->
                <div class="alert alert-info">
                    <i class="bi bi-info-circle me-2"></i>
                    <strong>What is a recovery key?</strong><br>
                    If you forget your admin password, this key is the ONLY way to reset it.
                </div>
                {% endif %}

                <!-- Recovery Key Display -->
                <div class="mb-4">
                    <label class="form-label">
                        <i class="bi bi-key-fill me-1"></i> Your New Recovery Key
                    </label>
                    <div class="input-group">
                        <input type="text" class="form-control font-monospace text-center"
                               id="recoveryKey" value="{{ recovery_key }}" readonly
                               style="font-size: 1.1em; letter-spacing: 0.5px;">
                        <button class="btn btn-outline-secondary" type="button"
                                onclick="copyToClipboard()" title="Copy to clipboard">
                            <i class="bi bi-clipboard" id="copyIcon"></i>
                        </button>
                    </div>
                </div>

                <!-- QR Code (if available) -->
                {% if qr_base64 %}
                <div class="mb-4 text-center">
                    <label class="form-label d-block">
                        <i class="bi bi-qr-code me-1"></i> QR Code
                    </label>
                    <img src="data:image/png;base64,{{ qr_base64 }}"
                         alt="Recovery Key QR Code" class="img-fluid border rounded"
                         style="max-width: 200px;" id="qrImage">
                </div>
                {% endif %}

                <!-- Download Options -->
                <div class="mb-4">
                    <label class="form-label">
                        <i class="bi bi-download me-1"></i> Download Options
                    </label>
                    <div class="d-flex gap-2 flex-wrap">
                        <button class="btn btn-outline-primary btn-sm" onclick="downloadTextFile()">
                            <i class="bi bi-file-text me-1"></i> Text File
                        </button>
                        {% if qr_base64 %}
                        <button class="btn btn-outline-primary btn-sm" onclick="downloadQRImage()">
                            <i class="bi bi-image me-1"></i> QR Image
                        </button>
                        {% endif %}
                    </div>
                </div>

                <!-- Stego Backup Option -->
                <div class="mb-4">
                    <label class="form-label">
                        <i class="bi bi-incognito me-1"></i> Hide in Image
                    </label>
                    <form method="POST" action="{{ url_for('create_stego_backup') }}"
                          enctype="multipart/form-data" class="d-flex gap-2 align-items-end">
                        <input type="hidden" name="recovery_key" value="{{ recovery_key }}">
                        <div class="flex-grow-1">
                            <input type="file" name="carrier_image" class="form-control form-control-sm"
                                   accept="image/jpeg,image/png" required>
                            <div class="form-text">JPG/PNG, 50KB-2MB</div>
                        </div>
                        <button type="submit" class="btn btn-outline-secondary btn-sm">
                            <i class="bi bi-download me-1"></i> Stego
                        </button>
                    </form>
                </div>

                <hr>

                <!-- Confirmation Form -->
                <form method="POST" id="recoveryForm">
              <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                    <input type="hidden" name="recovery_key" value="{{ recovery_key }}">

                    <!-- Confirm checkbox -->
                    <div class="form-check mb-3">
                        <input class="form-check-input" type="checkbox" id="confirmSaved"
                               onchange="updateButtons()">
                        <label class="form-check-label" for="confirmSaved">
                            I have saved my recovery key in a secure location
                        </label>
                    </div>

                    <div class="d-flex gap-2 justify-content-between">
                        <!-- Cancel button -->
                        <button type="submit" name="action" value="cancel"
                                class="btn btn-outline-secondary">
                            <i class="bi bi-x-lg me-1"></i> Cancel
                        </button>

                        <!-- Save button -->
                        <button type="submit" name="action" value="save"
                                class="btn btn-primary" id="saveBtn" disabled>
                            <i class="bi bi-check-lg me-1"></i> Save New Key
                        </button>
                    </div>
                </form>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block scripts %}
<script>
// Copy recovery key to clipboard
function copyToClipboard() {
    const keyInput = document.getElementById('recoveryKey');
    navigator.clipboard.writeText(keyInput.value).then(() => {
        const icon = document.getElementById('copyIcon');
        icon.className = 'bi bi-clipboard-check';
        setTimeout(() => { icon.className = 'bi bi-clipboard'; }, 2000);
    });
}

// Download as text file
function downloadTextFile() {
    const key = document.getElementById('recoveryKey').value;
    const content = `Stego Recovery Key
=====================

${key}

IMPORTANT:
- Keep this file in a secure location
- Anyone with this key can reset admin passwords
- Do not store with your password

Generated: ${new Date().toISOString()}
`;
    const blob = new Blob([content], { type: 'text/plain' });
    const url = URL.createObjectURL(blob);
    const a = document.createElement('a');
    a.href = url;
    a.download = 'stego-recovery-key.txt';
    a.click();
    URL.revokeObjectURL(url);
}

// Download QR as image
function downloadQRImage() {
    const img = document.getElementById('qrImage');
    if (!img) return;

    const a = document.createElement('a');
    a.href = img.src;
    a.download = 'stego-recovery-qr.png';
    a.click();
}

// Enable save button when checkbox is checked
function updateButtons() {
    const checkbox = document.getElementById('confirmSaved');
    const saveBtn = document.getElementById('saveBtn');
    saveBtn.disabled = !checkbox.checked;
}
</script>
{% endblock %}