{% extends "base.html" %}

{% block title %}Account - Stego{% endblock %}

{% block content %}
<div class="row justify-content-center">
    <div class="col-md-6 col-lg-5">
        <div class="card">
            <div class="card-header">
                <h5 class="mb-0"><i class="bi bi-person-gear me-2"></i>Account Settings</h5>
            </div>
            <div class="card-body">
                <p class="text-muted mb-4">
                    Logged in as <strong>{{ username }}</strong>
                    {% if is_admin %}
                    <span class="badge bg-warning text-dark ms-2">
                        <i class="bi bi-shield-check me-1"></i>Admin
                    </span>
                    {% endif %}
                </p>

                {% if is_admin %}
                <div class="mb-4">
                    <a href="{{ url_for('admin_users') }}" class="btn btn-outline-primary w-100">
                        <i class="bi bi-people me-2"></i>Manage Users
                    </a>
                </div>

                <!-- Recovery Key Management (Admin only) -->
                <div class="card bg-dark mb-4">
                    <div class="card-body py-3">
                        <div class="d-flex justify-content-between align-items-center">
                            <div>
                                <i class="bi bi-shield-lock me-2"></i>
                                <strong>Recovery Key</strong>
                                {% if has_recovery %}
                                <span class="badge bg-success ms-2">Configured</span>
                                {% else %}
                                <span class="badge bg-secondary ms-2">Not Set</span>
                                {% endif %}
                            </div>
                            <div class="btn-group btn-group-sm">
                                <a href="{{ url_for('regenerate_recovery') }}" class="btn btn-outline-warning"
                                   onclick="return confirm('Generate a new recovery key? This will invalidate any existing key.')">
                                    <i class="bi bi-arrow-repeat me-1"></i>
                                    {{ 'Regenerate' if has_recovery else 'Generate' }}
                                </a>
                                {% if has_recovery %}
                                <form method="POST" action="{{ url_for('disable_recovery') }}" style="display:inline;">
              <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                                    <button type="submit" class="btn btn-outline-danger"
                                            onclick="return confirm('Disable recovery? If you forget your password, you will NOT be able to recover your account.')">
                                        <i class="bi bi-x-lg"></i>
                                    </button>
                                </form>
                                {% endif %}
                            </div>
                        </div>
                        <small class="text-muted d-block mt-2">
                            {% if has_recovery %}
                            Allows password reset if you're locked out.
                            {% else %}
                            No recovery option - most secure, but no password reset possible.
                            {% endif %}
                        </small>
                    </div>
                </div>
                {% endif %}

                <h6 class="text-muted mb-3">Change Password</h6>

                <form method="POST" action="{{ url_for('account') }}" id="accountForm">
              <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                    <div class="mb-3">
                        <label class="form-label">
                            <i class="bi bi-key me-1"></i> Current Password
                        </label>
                        <div class="input-group">
                            <input type="password" name="current_password" class="form-control"
                                   id="currentPasswordInput" required>
                            <button class="btn btn-outline-secondary" type="button"
                                    onclick="togglePassword('currentPasswordInput', this)">
                                <i class="bi bi-eye"></i>
                            </button>
                        </div>
                    </div>

                    <div class="mb-3">
                        <label class="form-label">
                            <i class="bi bi-key-fill me-1"></i> New Password
                        </label>
                        <div class="input-group">
                            <input type="password" name="new_password" class="form-control"
                                   id="newPasswordInput" required minlength="8">
                            <button class="btn btn-outline-secondary" type="button"
                                    onclick="togglePassword('newPasswordInput', this)">
                                <i class="bi bi-eye"></i>
                            </button>
                        </div>
                        <div class="form-text">Minimum 8 characters</div>
                    </div>

                    <div class="mb-4">
                        <label class="form-label">
                            <i class="bi bi-key-fill me-1"></i> Confirm New Password
                        </label>
                        <div class="input-group">
                            <input type="password" name="new_password_confirm" class="form-control"
                                   id="newPasswordConfirmInput" required minlength="8">
                            <button class="btn btn-outline-secondary" type="button"
                                    onclick="togglePassword('newPasswordConfirmInput', this)">
                                <i class="bi bi-eye"></i>
                            </button>
                        </div>
                    </div>

                    <button type="submit" class="btn btn-primary w-100">
                        <i class="bi bi-check-lg me-2"></i>Update Password
                    </button>
                </form>

            </div>
        </div>

        <!-- Saved Channel Keys Section -->
        <div class="card mt-4">
            <div class="card-header d-flex justify-content-between align-items-center">
                <h5 class="mb-0"><i class="bi bi-key-fill me-2"></i>Saved Channel Keys</h5>
                <span class="badge bg-secondary">{{ channel_keys|length }} / {{ max_channel_keys }}</span>
            </div>
            <div class="card-body">
                {% if channel_keys %}
                <div class="list-group list-group-flush mb-3">
                    {% for key in channel_keys %}
                    <div class="list-group-item d-flex justify-content-between align-items-center px-0">
                        <div>
                            <strong>{{ key.name }}</strong>
                            <br>
                            <code class="small text-muted">{{ key.channel_key[:4] }}...{{ key.channel_key[-4:] }}</code>
                            {% if key.last_used_at %}
                            <span class="text-muted small ms-2">Last used: {{ key.last_used_at[:10] }}</span>
                            {% endif %}
                        </div>
                        <div class="btn-group btn-group-sm">
                            {% if is_admin %}
                            <button type="button" class="btn btn-outline-info"
                                    onclick="showKeyQr('{{ key.channel_key }}', '{{ key.name }}')"
                                    title="Show QR Code">
                                <i class="bi bi-qr-code"></i>
                            </button>
                            {% endif %}
                            <button type="button" class="btn btn-outline-secondary"
                                    onclick="renameKey({{ key.id }}, '{{ key.name }}')"
                                    title="Rename">
                                <i class="bi bi-pencil"></i>
                            </button>
                            <form method="POST" action="{{ url_for('account_delete_key', key_id=key.id) }}"
                                  style="display:inline;"
                                  onsubmit="return confirm('Delete key &quot;{{ key.name }}&quot;?')">
                                <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                                <button type="submit" class="btn btn-outline-danger" title="Delete">
                                    <i class="bi bi-trash"></i>
                                </button>
                            </form>
                        </div>
                    </div>
                    {% endfor %}
                </div>
                {% else %}
                <p class="text-muted mb-3">No saved channel keys. Save keys for quick access on encode/decode pages.</p>
                {% endif %}

                {% if can_save_key %}
                <hr>
                <h6 class="text-muted mb-3">Add New Key</h6>
                <form method="POST" action="{{ url_for('account_save_key') }}">
              <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                    <div class="row g-2 mb-2">
                        <div class="col-5">
                            <input type="text" name="key_name" class="form-control form-control-sm"
                                   placeholder="Key name" required maxlength="50">
                        </div>
                        <div class="col-7">
                            <div class="input-group input-group-sm">
                                <input type="text" name="channel_key" id="channelKeyInput"
                                       class="form-control font-monospace"
                                       placeholder="XXXX-XXXX-..." required
                                       pattern="[A-Za-z0-9]{4}(-[A-Za-z0-9]{4}){7}">
                                <button type="button" class="btn btn-outline-secondary" id="scanChannelKeyBtn"
                                        title="Scan QR code with camera">
                                    <i class="bi bi-camera"></i>
                                </button>
                            </div>
                        </div>
                    </div>
                    <button type="submit" class="btn btn-sm btn-outline-primary">
                        <i class="bi bi-plus-lg me-1"></i>Save Key
                    </button>
                </form>
                {% else %}
                <div class="alert alert-info mb-0 small">
                    <i class="bi bi-info-circle me-1"></i>
                    Maximum of {{ max_channel_keys }} keys reached. Delete a key to add more.
                </div>
                {% endif %}
            </div>
        </div>

        <!-- Logout -->
        <div class="mt-4">
            <a href="{{ url_for('logout') }}" class="btn btn-outline-danger w-100">
                <i class="bi bi-box-arrow-left me-2"></i>Logout
            </a>
        </div>
    </div>
</div>

<!-- Rename Modal -->
<div class="modal fade" id="renameModal" tabindex="-1">
    <div class="modal-dialog modal-sm">
        <div class="modal-content">
            <form method="POST" id="renameForm">
              <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                <div class="modal-header">
                    <h6 class="modal-title">Rename Key</h6>
                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                </div>
                <div class="modal-body">
                    <input type="text" name="new_name" class="form-control" id="renameInput"
                           required maxlength="50">
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-sm btn-secondary" data-bs-dismiss="modal">Cancel</button>
                    <button type="submit" class="btn btn-sm btn-primary">Rename</button>
                </div>
            </form>
        </div>
    </div>
</div>

{% if is_admin %}
<!-- QR Code Modal (Admin only) -->
<div class="modal fade" id="qrModal" tabindex="-1">
    <div class="modal-dialog modal-sm">
        <div class="modal-content">
            <div class="modal-header">
                <h6 class="modal-title"><i class="bi bi-qr-code me-2"></i><span id="qrKeyName">Channel Key</span></h6>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body text-center">
                <canvas id="qrCanvas" class="bg-white p-2 rounded"></canvas>
                <div class="mt-2">
                    <code class="small" id="qrKeyDisplay"></code>
                </div>
            </div>
            <div class="modal-footer justify-content-center">
                <button type="button" class="btn btn-sm btn-outline-secondary" id="qrDownload">
                    <i class="bi bi-download me-1"></i>Download
                </button>
                <button type="button" class="btn btn-sm btn-outline-secondary" id="qrPrint">
                    <i class="bi bi-printer me-1"></i>Print Sheet
                </button>
            </div>
        </div>
    </div>
</div>
{% endif %}
{% endblock %}

{% block scripts %}
<script src="{{ url_for('static', filename='js/auth.js') }}"></script>
<script src="{{ url_for('static', filename='js/fieldwitness.js') }}"></script>
{% if is_admin %}
<script src="{{ url_for('static', filename='js/qrcode.min.js') }}"></script>
{% endif %}
<script>
StegoAuth.initPasswordConfirmation('accountForm', 'newPasswordInput', 'newPasswordConfirmInput');

// Webcam QR scanning for channel key input (v4.1.5)
document.getElementById('scanChannelKeyBtn')?.addEventListener('click', function() {
    Stego.showQrScanner((text) => {
        const input = document.getElementById('channelKeyInput');
        if (input) {
            // Clean and format the key
            const clean = text.replace(/[^A-Za-z0-9]/g, '').toUpperCase();
            if (clean.length === 32) {
                input.value = clean.match(/.{4}/g).join('-');
            } else {
                input.value = text.toUpperCase();
            }
        }
    }, 'Scan Channel Key');
});

// Format channel key input as user types
document.getElementById('channelKeyInput')?.addEventListener('input', function() {
    Stego.formatChannelKeyInput(this);
});

function renameKey(keyId, currentName) {
    document.getElementById('renameInput').value = currentName;
    document.getElementById('renameForm').action = '/account/keys/' + keyId + '/rename';
    new bootstrap.Modal(document.getElementById('renameModal')).show();
}

{% if is_admin %}
function showKeyQr(channelKey, keyName) {
    // Format key with dashes if not already
    const clean = channelKey.replace(/-/g, '').toUpperCase();
    const formatted = clean.match(/.{4}/g)?.join('-') || clean;

    // Update modal content
    document.getElementById('qrKeyName').textContent = keyName;
    document.getElementById('qrKeyDisplay').textContent = formatted;

    // Generate QR code using QRious
    const canvas = document.getElementById('qrCanvas');
    if (typeof QRious !== 'undefined' && canvas) {
        try {
            new QRious({
                element: canvas,
                value: formatted,
                size: 200,
                level: 'M'
            });
            new bootstrap.Modal(document.getElementById('qrModal')).show();
        } catch (error) {
            console.error('QR generation error:', error);
        }
    }
}

// Download QR as PNG
document.getElementById('qrDownload')?.addEventListener('click', function() {
    const canvas = document.getElementById('qrCanvas');
    const keyName = document.getElementById('qrKeyName').textContent;
    if (canvas) {
        const link = document.createElement('a');
        link.download = 'stego-channel-key-' + keyName.toLowerCase().replace(/\s+/g, '-') + '.png';
        link.href = canvas.toDataURL('image/png');
        link.click();
    }
});

// Print tiled QR sheet (US Letter)
document.getElementById('qrPrint')?.addEventListener('click', function() {
    const canvas = document.getElementById('qrCanvas');
    const keyText = document.getElementById('qrKeyDisplay').textContent;
    const keyName = document.getElementById('qrKeyName').textContent;
    if (canvas && keyText) {
        printQrSheet(canvas, keyText, keyName);
    }
});

// Print QR codes tiled on US Letter paper (8.5" x 11")
function printQrSheet(canvas, keyText, title) {
    const qrDataUrl = canvas.toDataURL('image/png');
    const printWindow = window.open('', '_blank');
    if (!printWindow) {
        alert('Please allow popups to print');
        return;
    }

    // US Letter: 8.5" x 11" - create 4x5 grid of QR codes
    const cols = 4;
    const rows = 5;

    // Split key into two lines (4 groups each)
    const keyParts = keyText.split('-');
    const keyLine1 = keyParts.slice(0, 4).join('-');
    const keyLine2 = keyParts.slice(4).join('-');

    let qrGrid = '';
    for (let i = 0; i < rows * cols; i++) {
        qrGrid += `
            <div class="qr-tile">
                <div class="key-text">${keyLine1}</div>
                <img src="${qrDataUrl}" alt="QR">
                <div class="key-text">${keyLine2}</div>
            </div>
        `;
    }

    printWindow.document.write(`
        <!DOCTYPE html>
        <html>
        <head>
            <title></title>
            <style>
                @page {
                    size: letter;
                    margin: 0.2in;
                    margin-top: 0.1in;
                    margin-bottom: 0.1in;
                }
                @media print {
                    @page { margin: 0.15in; }
                    html, body { margin: 0; padding: 0; }
                }
                * { margin: 0; padding: 0; box-sizing: border-box; }
                body {
                    font-family: 'Courier New', monospace;
                    background: white;
                }
                .grid {
                    display: grid;
                    grid-template-columns: repeat(${cols}, 1fr);
                    gap: 0;
                    margin-top: 0.09in;
                }
                .qr-tile {
                    border: 1px dashed #ccc;
                    padding: 0.04in;
                    text-align: center;
                    page-break-inside: avoid;
                }
                .qr-tile img {
                    width: 1.6in;
                    height: 1.6in;
                }
                .key-text {
                    font-size: 10pt;
                    font-weight: bold;
                    color: #333;
                    line-height: 1.2;
                }
                .footer {
                    display: none;
                }
            </style>
        </head>
        <body>
            <div class="grid">${qrGrid}</div>
            <div class="footer">Cut along dashed lines</div>
            <script>
                window.onload = function() { window.print(); };
            <\/script>
        </body>
        </html>
    `);
    printWindow.document.close();
}
{% endif %}
</script>
{% endblock %}