{% extends "layout.html" %}

<!-- Folder tree rendering macro -->
{% macro render_folder_tree(tree, parent_path='') %}
    {% for folder_path, children in tree.items() %}
        {% set folder_name = folder_path.split('/')[-1] %}
        {% set is_active = folder_filter == folder_path %}
        <div class="folder-item {% if is_active %}active{% endif %}" style="padding-left: {{ (folder_path.count('/') + 1) * 20 }}px;">
            <span class="folder-icon">📁</span>
            <a href="{{ url_for('notes.notes_list', folder=folder_path) }}" class="folder-link">
                {{ folder_name }}
            </a>
            <span class="folder-count">({{ folder_counts.get(folder_path, 0) }})</span>
        </div>
        {% if children %}
            {{ render_folder_tree(children, folder_path) }}
        {% endif %}
    {% endfor %}
{% endmacro %}

{% block content %}
<div class="notes-container">
    <!-- Header Section -->
    <div class="page-header">
        <div class="header-content">
            <div class="header-left">
                <h1 class="page-title">
                    <span class="page-icon">📝</span>
                    Notes & Documentation
                </h1>
                <p class="page-subtitle">Organize your thoughts and documentation</p>
            </div>
            <div class="header-actions">
                <a href="{{ url_for('notes.create_note') }}" class="btn btn-primary">
                    <span class="icon">➕</span>
                    Create New Note
                </a>
                <button type="button" class="btn btn-secondary" id="toggle-sidebar">
                    <span class="icon">📁</span>
                    Toggle Folders
                </button>
                <a href="{{ url_for('notes.notes_folders') }}" class="btn btn-secondary">
                    <span class="icon">⚙️</span>
                    Manage Folders
                </a>
            </div>
        </div>
    </div>

    <div class="notes-layout">
        <!-- Sidebar -->
        <div class="notes-sidebar" id="notes-sidebar">
            <!-- Search -->
            <div class="sidebar-section">
                <form method="GET" action="{{ url_for('notes.notes_list') }}">
                    <div class="search-box">
                        <input type="text" 
                               name="search" 
                               class="form-control" 
                               placeholder="Search notes..."
                               value="{{ search_query }}">
                        <button type="submit" class="search-btn">🔍</button>
                    </div>
                </form>
            </div>

            <!-- Folders -->
            <div class="sidebar-section">
                <h4>Folders</h4>
                <div class="folder-tree">
                    <div class="folder-item {% if not folder_filter %}active{% endif %}">
                        <span class="folder-icon">🏠</span>
                        <a href="{{ url_for('notes.notes_list') }}" class="folder-link">All Notes</a>
                        <span class="folder-count">({{ notes|length }})</span>
                    </div>
                    {{ render_folder_tree(folder_tree)|safe }}
                </div>
            </div>

            <!-- Tags -->
            <div class="sidebar-section">
                <h4>Tags</h4>
                {% if all_tags %}
                <div class="tags-list">
                    {% for tag in all_tags %}
                    <a href="{{ url_for('notes.notes_list', tag=tag) }}" 
                       class="tag-link {% if tag_filter == tag %}active{% endif %}">
                        <span class="tag-icon">🏷️</span>
                        {{ tag }}
                        <span class="tag-count">({{ tag_counts.get(tag, 0) }})</span>
                    </a>
                    {% endfor %}
                </div>
                {% else %}
                <p class="text-muted">No tags yet</p>
                {% endif %}
            </div>

            <!-- Visibility Filter -->
            <div class="sidebar-section">
                <h4>Visibility</h4>
                <div class="visibility-filters">
                    <a href="{{ url_for('notes.notes_list') }}" 
                       class="visibility-link {% if not visibility_filter %}active{% endif %}">
                        <span>👁️</span> All Notes
                    </a>
                    <a href="{{ url_for('notes.notes_list', visibility='private') }}" 
                       class="visibility-link {% if visibility_filter == 'private' %}active{% endif %}">
                        <span>🔒</span> Private
                    </a>
                    <a href="{{ url_for('notes.notes_list', visibility='team') }}" 
                       class="visibility-link {% if visibility_filter == 'team' %}active{% endif %}">
                        <span>👥</span> Team
                    </a>
                    <a href="{{ url_for('notes.notes_list', visibility='company') }}" 
                       class="visibility-link {% if visibility_filter == 'company' %}active{% endif %}">
                        <span>🏢</span> Company
                    </a>
                </div>
            </div>
        </div>

        <!-- Main Content -->
        <div class="notes-content">
            <!-- Active Filters -->
            {% if folder_filter or tag_filter or visibility_filter or search_query %}
            <div class="active-filters">
                <span>Active filters:</span>
                {% if folder_filter %}
                <span class="filter-tag">
                    📁 {{ folder_filter }}
                    <a href="{{ url_for('notes.notes_list', tag=tag_filter, visibility=visibility_filter, search=search_query) }}" class="remove-filter">×</a>
                </span>
                {% endif %}
                {% if tag_filter %}
                <span class="filter-tag">
                    🏷️ {{ tag_filter }}
                    <a href="{{ url_for('notes.notes_list', folder=folder_filter, visibility=visibility_filter, search=search_query) }}" class="remove-filter">×</a>
                </span>
                {% endif %}
                {% if visibility_filter %}
                <span class="filter-tag">
                    👁️ {{ visibility_filter|title }}
                    <a href="{{ url_for('notes.notes_list', folder=folder_filter, tag=tag_filter, search=search_query) }}" class="remove-filter">×</a>
                </span>
                {% endif %}
                {% if search_query %}
                <span class="filter-tag">
                    🔍 "{{ search_query }}"
                    <a href="{{ url_for('notes.notes_list', folder=folder_filter, tag=tag_filter, visibility=visibility_filter) }}" class="remove-filter">×</a>
                </span>
                {% endif %}
                <a href="{{ url_for('notes.notes_list') }}" class="clear-all">Clear all</a>
            </div>
            {% endif %}

            {% if notes %}
            <!-- View Toggle -->
            <div class="view-controls">
                <div class="view-toggle">
                    <button class="toggle-btn active" data-view="grid" onclick="switchView('grid')">
                        <span>⊞</span> Grid
                    </button>
                    <button class="toggle-btn" data-view="list" onclick="switchView('list')">
                        <span>☰</span> List
                    </button>
                </div>
            </div>

            <!-- Grid View -->
            <div class="notes-view grid-view active" id="grid-view">
                <div class="notes-grid" id="notes-grid">
                {% for note in notes %}
                <div class="note-card {% if note.is_pinned %}pinned{% endif %}" 
                     data-note-id="{{ note.id }}"
                     draggable="true">
                    <div class="note-card-header">
                        {% if note.is_pinned %}
                        <span class="pin-indicator" title="Pinned">📌</span>
                        {% endif %}
                        <span class="visibility-badge visibility-{{ note.visibility.value.lower() }}">
                            {% if note.visibility.value == 'Private' %}🔒{% elif note.visibility.value == 'Team' %}👥{% else %}🏢{% endif %}
                            {{ note.visibility.value }}
                        </span>
                    </div>
                    
                    <h3 class="note-title">
                        <a href="{{ url_for('notes.view_note', slug=note.slug) }}">{{ note.title }}</a>
                    </h3>
                    
                    <p class="note-preview">{{ note.get_preview(150) }}</p>
                    
                    {% if note.tags %}
                    <div class="note-tags">
                        {% for tag in note.get_tags_list() %}
                        <span class="tag-chip">{{ tag }}</span>
                        {% endfor %}
                    </div>
                    {% endif %}
                    
                    <div class="note-footer">
                        <span class="note-meta">
                            <span>📁</span> {{ note.folder or 'No folder' }}
                        </span>
                        <span class="note-meta">
                            <span>👤</span> {{ note.created_by.username }}
                        </span>
                        <span class="note-meta">
                            <span>🕒</span> {{ note.updated_at.strftime('%b %d, %Y') }}
                        </span>
                    </div>
                    
                    <div class="note-actions">
                        <a href="{{ url_for('notes.view_note', slug=note.slug) }}" class="btn-sm btn-secondary">View</a>
                        {% if note.can_user_edit(g.user) %}
                        <a href="{{ url_for('notes.edit_note', slug=note.slug) }}" class="btn-sm btn-primary">Edit</a>
                        {% endif %}
                    </div>
                </div>
                {% endfor %}
                </div>
            </div>

            <!-- List View -->
            <div class="notes-view list-view" id="list-view">
                <table class="notes-table">
                    <thead>
                        <tr>
                            <th>Title</th>
                            <th>Folder</th>
                            <th>Tags</th>
                            <th>Visibility</th>
                            <th>Author</th>
                            <th>Updated</th>
                            <th>Actions</th>
                        </tr>
                    </thead>
                    <tbody>
                        {% for note in notes %}
                        <tr class="note-row {% if note.is_pinned %}pinned{% endif %}"
                            data-note-id="{{ note.id }}"
                            draggable="true">
                            <td>
                                {% if note.is_pinned %}<span class="pin-indicator" title="Pinned">📌</span>{% endif %}
                                <a href="{{ url_for('notes.view_note', slug=note.slug) }}">{{ note.title }}</a>
                            </td>
                            <td>{{ note.folder or '-' }}</td>
                            <td>
                                {% if note.tags %}
                                    {% for tag in note.get_tags_list() %}
                                    <span class="tag-chip">{{ tag }}</span>
                                    {% endfor %}
                                {% else %}
                                    -
                                {% endif %}
                            </td>
                            <td>
                                <span class="visibility-badge visibility-{{ note.visibility.value.lower() }}">
                                    {% if note.visibility.value == 'Private' %}🔒{% elif note.visibility.value == 'Team' %}👥{% else %}🏢{% endif %}
                                    {{ note.visibility.value }}
                                </span>
                            </td>
                            <td>{{ note.created_by.username }}</td>
                            <td>{{ note.updated_at.strftime('%b %d, %Y') }}</td>
                            <td>
                                <a href="{{ url_for('notes.view_note', slug=note.slug) }}" class="btn-sm btn-secondary">View</a>
                                {% if note.can_user_edit(g.user) %}
                                <a href="{{ url_for('notes.edit_note', slug=note.slug) }}" class="btn-sm btn-primary">Edit</a>
                                {% endif %}
                            </td>
                        </tr>
                        {% endfor %}
                    </tbody>
                </table>
            </div>
            {% else %}
            <div class="empty-state">
                <div class="empty-icon">📝</div>
                <h3>No notes found</h3>
                <p>
                    {% if folder_filter or tag_filter or visibility_filter or search_query %}
                        No notes match your current filters. Try adjusting your search criteria.
                    {% else %}
                        Start documenting your knowledge by creating your first note.
                    {% endif %}
                </p>
                <a href="{{ url_for('notes.create_note') }}" class="btn btn-primary">Create Your First Note</a>
            </div>
            {% endif %}
        </div>
    </div>
</div>

<style>
/* Container */
.notes-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Page Header - Time Tracking style */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    padding: 2rem;
    color: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.page-icon {
    font-size: 2.5rem;
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.page-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0.5rem 0 0 0;
}

.header-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Modern button styles to match Time Tracking */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: white;
    color: #667eea;
    border-color: #e5e7eb;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border-color: #667eea;
}

.btn .icon {
    font-size: 1.1em;
}

/* Small buttons */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.btn-sm.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-sm.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-sm.btn-secondary {
    background: white;
    color: #667eea;
    border: 1px solid #e5e7eb;
}

.btn-sm.btn-secondary:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-color: #667eea;
}

/* Notes layout */
.notes-layout {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

/* Sidebar */
.notes-sidebar {
    width: 280px;
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    height: fit-content;
    position: sticky;
    top: 20px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid #e5e7eb;
}

.notes-sidebar.collapsed {
    display: none;
}

.sidebar-section {
    margin-bottom: 25px;
}

.sidebar-section h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1f2937;
}

.search-box {
    position: relative;
    display: flex;
    max-width: 100%;
}

.search-box input {
    padding: 0.75rem;
    padding-right: 35px;
    width: 100%;
    font-size: 0.9rem;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    transition: all 0.2s;
}

.search-box input:focus {
    border-color: #667eea;
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-btn {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

/* Folder Tree */
.folder-tree {
    font-size: 0.85rem;
}

.folder-item {
    padding: 5px 0;
    display: flex;
    align-items: center;
    gap: 5px;
}

.folder-item.active .folder-link {
    font-weight: 600;
    color: #667eea;
}

.folder-item.drag-over {
    background: #e3f2fd;
    border-radius: 3px;
}

.folder-link {
    color: #495057;
    text-decoration: none;
    flex: 1;
}

.folder-link:hover {
    color: #667eea;
}

.folder-count {
    font-size: 0.8rem;
    color: #6c757d;
}

/* Tags */
.tags-list {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.tag-link {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 12px;
    background: #f8f9fa;
    border-radius: 8px;
    text-decoration: none;
    color: #495057;
    font-size: 0.9rem;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.tag-link:hover {
    background: #e9ecef;
    transform: translateX(2px);
}

.tag-link.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.tag-count {
    margin-left: auto;
    font-size: 0.8rem;
    opacity: 0.7;
}

/* Visibility Filters */
.visibility-filters {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.visibility-link {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 12px;
    background: #f8f9fa;
    border-radius: 8px;
    text-decoration: none;
    color: #495057;
    font-size: 0.9rem;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.visibility-link:hover {
    background: #e9ecef;
    transform: translateX(2px);
}

.visibility-link.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

/* Main Content */
.notes-content {
    flex: 1;
    min-width: 0;
}

/* Active Filters */
.active-filters {
    background: white;
    padding: 12px 16px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid #e5e7eb;
}

.filter-tag {
    background: #f8f9fa;
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid #e5e7eb;
}

.remove-filter {
    margin-left: 5px;
    color: #dc3545;
    text-decoration: none;
    font-weight: bold;
}

.clear-all {
    margin-left: auto;
    color: #667eea;
    text-decoration: none;
}

/* View Controls */
.view-controls {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 20px;
}

.view-toggle {
    display: flex;
    gap: 5px;
}

.toggle-btn {
    padding: 5px 15px;
    background: white;
    border: 1px solid #dee2e6;
    cursor: pointer;
    transition: all 0.2s;
}

.toggle-btn:first-child {
    border-radius: 3px 0 0 3px;
}

.toggle-btn:last-child {
    border-radius: 0 3px 3px 0;
}

.toggle-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: #667eea;
}

/* View Containers */
.notes-view {
    display: none;
}

.notes-view.active {
    display: block;
}

/* Notes Grid */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
}

.note-card {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 1.5rem;
    position: relative;
    transition: all 0.2s;
    cursor: move;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.note-card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    transform: translateY(-4px);
}

.note-card.pinned {
    border-color: #ffc107;
}

.note-card.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.note-card.drag-over {
    border: 2px dashed #667eea;
}

.note-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.pin-indicator {
    font-size: 0.875rem;
}

.visibility-badge {
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 3px;
}

.visibility-private {
    background: #f8d7da;
    color: #721c24;
}

.visibility-team {
    background: #d1ecf1;
    color: #0c5460;
}

.visibility-company {
    background: #d4edda;
    color: #155724;
}

.note-title {
    font-size: 1rem;
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.note-title a {
    color: #333;
    text-decoration: none;
}

.note-title a:hover {
    color: #667eea;
}

.note-preview {
    color: #6c757d;
    font-size: 0.8rem;
    line-height: 1.3;
    margin-bottom: 8px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.note-tags {
    margin-bottom: 8px;
}

.tag-chip {
    display: inline-block;
    background: #e9ecef;
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 0.7rem;
    margin-right: 4px;
}

.note-footer {
    display: flex;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 0.7rem;
    color: #6c757d;
}

.note-meta {
    display: flex;
    align-items: center;
    gap: 2px;
}

.note-actions {
    display: flex;
    gap: 5px;
    padding-top: 8px;
    border-top: 1px solid #e9ecef;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid #e5e7eb;
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

/* List View / Table */
.notes-table {
    width: 100%;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    overflow: hidden;
    border-collapse: collapse;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.notes-table th {
    background: #f8f9fa;
    padding: 10px;
    text-align: left;
    font-weight: 600;
    color: #495057;
    border-bottom: 2px solid #dee2e6;
    font-size: 0.85rem;
}

.notes-table td {
    padding: 10px;
    border-bottom: 1px solid #e9ecef;
    font-size: 0.85rem;
}

.notes-table tr:hover {
    background: #f8f9fa;
}

.notes-table tr.pinned {
    background: #fff8dc;
}

.notes-table tr.pinned:hover {
    background: #fff3cd;
}

/* Draggable table rows */
.note-row {
    cursor: move;
}

.note-row.dragging {
    opacity: 0.5;
}

.note-row a {
    pointer-events: auto;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    .notes-layout {
        flex-direction: column;
    }
    
    .notes-sidebar {
        width: 100%;
        position: static;
    }
    
    .notes-grid {
        grid-template-columns: 1fr;
    }
}
</style>

<script>
// Sidebar toggle
document.getElementById('toggle-sidebar').addEventListener('click', function() {
    document.getElementById('notes-sidebar').classList.toggle('collapsed');
});

// View switching
function switchView(view) {
    // Update button states
    document.querySelectorAll('.toggle-btn').forEach(btn => {
        btn.classList.remove('active');
        if (btn.dataset.view === view) {
            btn.classList.add('active');
        }
    });
    
    // Update view visibility
    document.querySelectorAll('.notes-view').forEach(v => {
        v.classList.remove('active');
    });
    
    document.getElementById(view + '-view').classList.add('active');
}

// Drag and Drop functionality
let draggedNote = null;
let draggedNoteId = null;

document.addEventListener('DOMContentLoaded', function() {
    initializeDragAndDrop();
});

function initializeDragAndDrop() {
    // Note cards (grid view)
    const noteCards = document.querySelectorAll('.note-card');
    noteCards.forEach(card => {
        card.addEventListener('dragstart', handleNoteDragStart);
        card.addEventListener('dragend', handleNoteDragEnd);
        card.addEventListener('dragover', handleNoteDragOver);
        card.addEventListener('drop', handleNoteDrop);
        card.addEventListener('dragleave', handleNoteDragLeave);
    });
    
    // Note rows (list view)
    const noteRows = document.querySelectorAll('.note-row');
    noteRows.forEach(row => {
        row.addEventListener('dragstart', handleNoteDragStart);
        row.addEventListener('dragend', handleNoteDragEnd);
    });
    
    // Folder items
    const folderItems = document.querySelectorAll('.folder-item');
    folderItems.forEach(folder => {
        folder.addEventListener('dragover', handleFolderDragOver);
        folder.addEventListener('drop', handleFolderDrop);
        folder.addEventListener('dragleave', handleFolderDragLeave);
    });
}

// Note drag handlers
function handleNoteDragStart(e) {
    draggedNote = this;
    draggedNoteId = this.dataset.noteId;
    this.classList.add('dragging');
    e.dataTransfer.effectAllowed = 'move';
    e.dataTransfer.setData('text/plain', draggedNoteId);
}

function handleNoteDragEnd(e) {
    this.classList.remove('dragging');
    
    // Remove all drag-over classes
    document.querySelectorAll('.note-card, .note-row, .folder-item').forEach(el => {
        el.classList.remove('drag-over');
    });
}

function handleNoteDragOver(e) {
    if (e.preventDefault) {
        e.preventDefault();
    }
    
    e.dataTransfer.dropEffect = 'move';
    
    if (this !== draggedNote) {
        this.classList.add('drag-over');
    }
    
    return false;
}

function handleNoteDragLeave(e) {
    this.classList.remove('drag-over');
}

function handleNoteDrop(e) {
    if (e.stopPropagation) {
        e.stopPropagation();
    }
    
    if (draggedNote !== this) {
        // Reorder notes
        const notesGrid = document.getElementById('notes-grid');
        const allCards = Array.from(notesGrid.querySelectorAll('.note-card'));
        const draggedIndex = allCards.indexOf(draggedNote);
        const targetIndex = allCards.indexOf(this);
        
        if (draggedIndex < targetIndex) {
            this.parentNode.insertBefore(draggedNote, this.nextSibling);
        } else {
            this.parentNode.insertBefore(draggedNote, this);
        }
    }
    
    return false;
}

// Folder drag handlers
function handleFolderDragOver(e) {
    if (e.preventDefault) {
        e.preventDefault();
    }
    
    e.dataTransfer.dropEffect = 'move';
    this.classList.add('drag-over');
    
    return false;
}

function handleFolderDragLeave(e) {
    this.classList.remove('drag-over');
}

function handleFolderDrop(e) {
    if (e.stopPropagation) {
        e.stopPropagation();
    }
    
    this.classList.remove('drag-over');
    
    // Get folder path
    const folderLink = this.querySelector('.folder-link');
    let folderPath = '';
    
    if (folderLink) {
        // Extract folder path from the URL
        const href = folderLink.getAttribute('href');
        const url = new URL(href, window.location.origin);
        folderPath = url.searchParams.get('folder') || '';
    }
    
    // Move note to folder
    if (draggedNoteId && confirm(`Move this note to folder "${folderPath || 'All Notes'}"?`)) {
        // Here you would make an API call to update the note's folder
        fetch(`/api/notes/${draggedNoteId}/move`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify({ folder: folderPath })
        })
        .then(response => response.json())
        .then(data => {
            if (data.success) {
                window.location.reload();
            } else {
                alert('Failed to move note: ' + (data.error || 'Unknown error'));
            }
        })
        .catch(error => {
            console.error('Error:', error);
            alert('Failed to move note');
        });
    }
    
    return false;
}
</script>

{% endblock %}