{% 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"><i class="ti ti-folder"></i></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="page-container">
    <!-- Header Section -->
    <div class="page-header">
        <div class="header-content">
            <div class="header-left">
                <h1 class="page-title">
                    <span class="page-icon"><i class="ti ti-notes"></i></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"><i class="ti ti-plus"></i></span>
                    Create New Note
                </a>
                <button type="button" class="btn btn-primary" id="upload-btn">
                    <span class="icon"><i class="ti ti-upload"></i></span>
                    Upload File
                </button>
                <button type="button" class="btn btn-secondary" id="toggle-sidebar">
                    <span class="icon"><i class="ti ti-folder"></i></span>
                    Toggle Folders
                </button>
                <a href="{{ url_for('notes.notes_folders') }}" class="btn btn-secondary">
                    <span class="icon"><i class="ti ti-settings"></i></span>
                    Manage Folders
                </a>
                <button type="button" class="btn btn-secondary" id="preferences-btn">
                    <span class="icon"><i class="ti ti-adjustments"></i></span>
                    Preferences
                </button>
            </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"><i class="ti ti-search"></i></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"><i class="ti ti-home"></i></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"><i class="ti ti-tag"></i></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><i class="ti ti-eye"></i></span> All Notes
                    </a>
                    <a href="{{ url_for('notes.notes_list', visibility='private') }}" 
                       class="visibility-link {% if visibility_filter == 'private' %}active{% endif %}">
                        <span><i class="ti ti-lock"></i></span> Private
                    </a>
                    <a href="{{ url_for('notes.notes_list', visibility='team') }}" 
                       class="visibility-link {% if visibility_filter == 'team' %}active{% endif %}">
                        <span><i class="ti ti-users"></i></span> Team
                    </a>
                    <a href="{{ url_for('notes.notes_list', visibility='company') }}" 
                       class="visibility-link {% if visibility_filter == 'company' %}active{% endif %}">
                        <span><i class="ti ti-building"></i></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">
                    <i class="ti ti-folder"></i> {{ folder_filter }}
                    <a href="{{ url_for('notes.notes_list', tag=tag_filter, visibility=visibility_filter, search=search_query) }}" class="remove-filter"><i class="ti ti-x"></i></a>
                </span>
                {% endif %}
                {% if tag_filter %}
                <span class="filter-tag">
                    <i class="ti ti-tag"></i> {{ tag_filter }}
                    <a href="{{ url_for('notes.notes_list', folder=folder_filter, visibility=visibility_filter, search=search_query) }}" class="remove-filter"><i class="ti ti-x"></i></a>
                </span>
                {% endif %}
                {% if visibility_filter %}
                <span class="filter-tag">
                    <i class="ti ti-eye"></i> {{ visibility_filter|title }}
                    <a href="{{ url_for('notes.notes_list', folder=folder_filter, tag=tag_filter, search=search_query) }}" class="remove-filter"><i class="ti ti-x"></i></a>
                </span>
                {% endif %}
                {% if search_query %}
                <span class="filter-tag">
                    <i class="ti ti-search"></i> "{{ search_query }}"
                    <a href="{{ url_for('notes.notes_list', folder=folder_filter, tag=tag_filter, visibility=visibility_filter) }}" class="remove-filter"><i class="ti ti-x"></i></a>
                </span>
                {% endif %}
                <a href="{{ url_for('notes.notes_list') }}" class="clear-all">Clear all</a>
            </div>
            {% endif %}

            {% if notes %}
            <!-- Bulk Actions Bar -->
            <div class="bulk-actions-bar" id="bulk-actions-bar">
                <div class="select-all-container">
                    <input type="checkbox" id="select-all" class="select-all-checkbox">
                    <label for="select-all">Select All</label>
                </div>
                <span class="selection-info">
                    <span id="selected-count">0</span> selected
                </span>
                <div class="bulk-actions">
                    <button class="bulk-action-btn" id="bulk-move-btn">
                        <i class="ti ti-folder-share"></i> Move
                    </button>
                    <button class="bulk-action-btn danger" id="bulk-delete-btn">
                        <i class="ti ti-trash"></i> Delete
                    </button>
                </div>
            </div>

            <!-- View Toggle -->
            <div class="view-controls">
                <div class="view-toggle">
                    <button class="toggle-btn active" data-view="grid" onclick="switchView('grid')">
                        <span><i class="ti ti-layout-grid"></i></span> Grid
                    </button>
                    <button class="toggle-btn" data-view="list" onclick="switchView('list')">
                        <span><i class="ti ti-list"></i></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">
                    <input type="checkbox" class="note-checkbox" data-note-id="{{ note.id }}">
                    <div class="note-card-header">
                        {% if note.is_pinned %}
                        <span class="pin-indicator" title="Pinned"><i class="ti ti-pin"></i></span>
                        {% endif %}
                        <span class="visibility-badge visibility-{{ note.visibility.value.lower() }}">
                            {% if note.visibility.value == 'Private' %}<i class="ti ti-lock"></i>{% elif note.visibility.value == 'Team' %}<i class="ti ti-users"></i>{% else %}<i class="ti ti-building"></i>{% endif %}
                            {{ note.visibility.value }}
                        </span>
                    </div>
                    
                    <h3 class="note-title">
                        <a href="{{ url_for('notes.view_note', slug=note.slug) }}" title="{{ note.title }}">{{ note.title }}</a>
                    </h3>
                    
                    {% if note.is_image %}
                    <div class="note-image-preview">
                        <img src="{{ note.file_url }}" alt="{{ note.title }}" loading="lazy">
                    </div>
                    {% elif note.is_pdf %}
                    <div class="note-pdf-preview">
                        <i class="ti ti-file-type-pdf"></i>
                        <span>PDF Document</span>
                    </div>
                    {% else %}
                    <p class="note-preview">{{ note.get_preview(150) }}</p>
                    {% endif %}
                    
                    {% 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><i class="ti ti-folder"></i></span> {{ note.folder or 'No folder' }}
                        </span>
                        <span class="note-meta">
                            <span><i class="ti ti-user"></i></span> {{ note.created_by.username }}
                        </span>
                        <span class="note-meta">
                            <span><i class="ti ti-clock"></i></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 class="checkbox-column">
                                <input type="checkbox" id="select-all-table" class="select-all-checkbox">
                            </th>
                            <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 class="checkbox-column">
                                <input type="checkbox" class="note-checkbox" data-note-id="{{ note.id }}">
                            </td>
                            <td>
                                {% if note.is_pinned %}<span class="pin-indicator" title="Pinned"><i class="ti ti-pin"></i></span>{% endif %}
                                {% if note.is_pdf %}<span class="file-type-indicator" title="PDF Document"><i class="ti ti-file-type-pdf"></i></span>{% endif %}
                                {% if note.is_image %}<span class="file-type-indicator" title="Image"><i class="ti ti-photo"></i></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' %}<i class="ti ti-lock"></i>{% elif note.visibility.value == 'Team' %}<i class="ti ti-users"></i>{% else %}<i class="ti ti-building"></i>{% 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"><i class="ti ti-notes"></i></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>

<!-- Upload Modal -->
<div id="upload-modal" class="upload-modal">
    <div class="upload-modal-content">
        <div class="upload-modal-header">
            <h2>Upload File</h2>
            <button type="button" class="upload-modal-close" onclick="hideUploadModal()">&times;</button>
        </div>
        <form id="upload-form" enctype="multipart/form-data">
            <div class="upload-modal-body">
                <div class="upload-form-group">
                    <label for="file-input">Select Files or Folder</label>
                    <div class="file-input-wrapper">
                        <input type="file" id="file-input-folder" name="files" accept=".md,.markdown,.jpg,.jpeg,.png,.gif,.webp,.svg,.txt,.pdf,.doc,.docx" webkitdirectory style="display: none;">
                        <input type="file" id="file-input-multiple" name="files" accept=".md,.markdown,.jpg,.jpeg,.png,.gif,.webp,.svg,.txt,.pdf,.doc,.docx" multiple style="display: none;">
                        <label for="file-input" class="file-input-label" id="file-input-label">
                            <i class="ti ti-upload"></i>
                            <span>Choose files or drag & drop here</span>
                            <small>Supported: .md, images (.jpg, .png, .gif, .webp, .svg), documents (.txt, .pdf, .doc)</small>
                            <div class="upload-buttons">
                                <button type="button" class="btn btn-sm btn-secondary" onclick="selectMultipleFiles()">
                                    <i class="ti ti-files"></i> Select Files
                                </button>
                                <button type="button" class="btn btn-sm btn-secondary" onclick="selectFolder()">
                                    <i class="ti ti-folder"></i> Select Folder
                                </button>
                            </div>
                        </label>
                    </div>
                    <div id="upload-preview"></div>
                    <div id="upload-progress" style="display: none;">
                        <div class="progress-bar">
                            <div class="progress-fill" id="progress-fill"></div>
                        </div>
                        <div class="progress-text" id="progress-text">Uploading...</div>
                    </div>
                </div>
                
                <div class="upload-form-group">
                    <label for="upload-folder">Folder</label>
                    <input type="text" id="upload-folder" name="folder" class="form-control" 
                           placeholder="e.g., Work/Projects (optional)"
                           list="upload-folder-suggestions">
                    <datalist id="upload-folder-suggestions">
                        {% for folder in all_folders %}
                        <option value="{{ folder.path }}">
                        {% endfor %}
                    </datalist>
                </div>
                
                <div class="upload-form-group">
                    <label for="upload-tags">Tags</label>
                    <input type="text" id="upload-tags" name="tags" class="form-control" 
                           placeholder="documentation, images, reference (comma-separated, optional)">
                </div>
            </div>
            <div class="upload-modal-footer">
                <button type="button" class="btn btn-secondary" onclick="hideUploadModal()">Cancel</button>
                <button type="submit" class="btn btn-primary">
                    <i class="ti ti-upload"></i> Upload
                </button>
            </div>
        </form>
    </div>
</div>

<!-- Note Preferences Modal -->
<div id="preferences-modal" class="move-modal">
    <div class="move-modal-content" style="max-width: 500px;">
        <div class="move-modal-header">
            <h3><i class="ti ti-adjustments"></i> Note Preferences</h3>
            <button type="button" class="close-btn" onclick="closePreferencesModal()">
                <i class="ti ti-x"></i>
            </button>
        </div>
        <form id="note-preferences-form" method="POST" action="{{ url_for('notes.update_note_preferences') }}">
            <div class="move-modal-body">
                <div class="form-group">
                    <label for="note_preview_font" class="form-label">Preview Font</label>
                    <select id="note_preview_font" name="note_preview_font" class="form-control">
                        <option value="system" {% if not g.user.preferences or g.user.preferences.note_preview_font == 'system' %}selected{% endif %}>System Default</option>
                        <option value="sans-serif" {% if g.user.preferences and g.user.preferences.note_preview_font == 'sans-serif' %}selected{% endif %}>Sans-serif (Arial, Helvetica)</option>
                        <option value="serif" {% if g.user.preferences and g.user.preferences.note_preview_font == 'serif' %}selected{% endif %}>Serif (Times, Georgia)</option>
                        <option value="monospace" {% if g.user.preferences and g.user.preferences.note_preview_font == 'monospace' %}selected{% endif %}>Monospace (Courier, Consolas)</option>
                        <option value="georgia" {% if g.user.preferences and g.user.preferences.note_preview_font == 'georgia' %}selected{% endif %}>Georgia</option>
                        <option value="palatino" {% if g.user.preferences and g.user.preferences.note_preview_font == 'palatino' %}selected{% endif %}>Palatino</option>
                        <option value="garamond" {% if g.user.preferences and g.user.preferences.note_preview_font == 'garamond' %}selected{% endif %}>Garamond</option>
                        <option value="bookman" {% if g.user.preferences and g.user.preferences.note_preview_font == 'bookman' %}selected{% endif %}>Bookman</option>
                        <option value="comic-sans" {% if g.user.preferences and g.user.preferences.note_preview_font == 'comic-sans' %}selected{% endif %}>Comic Sans MS</option>
                        <option value="trebuchet" {% if g.user.preferences and g.user.preferences.note_preview_font == 'trebuchet' %}selected{% endif %}>Trebuchet MS</option>
                        <option value="arial-black" {% if g.user.preferences and g.user.preferences.note_preview_font == 'arial-black' %}selected{% endif %}>Arial Black</option>
                        <option value="impact" {% if g.user.preferences and g.user.preferences.note_preview_font == 'impact' %}selected{% endif %}>Impact</option>
                    </select>
                    <small class="form-text text-muted">Choose the font family for note previews in the list view</small>
                </div>
                
                <div class="preview-section mt-4">
                    <label class="form-label">Preview</label>
                    <div class="preview-box" id="fontPreview">
                        <p class="mb-2">This is how your note previews will look with the selected font.</p>
                        <p class="mb-0 text-muted">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
                    </div>
                </div>
            </div>
            <div class="move-modal-footer">
                <button type="button" class="btn btn-secondary" onclick="closePreferencesModal()">Cancel</button>
                <button type="submit" class="btn btn-primary">
                    <i class="ti ti-check"></i> Save Preferences
                </button>
            </div>
        </form>
    </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;
    color: #f39c12;
    margin-right: 0.25rem;
}

.file-type-indicator {
    margin-right: 0.25rem;
}

.file-type-indicator i {
    font-size: 1.1rem;
}

.file-type-indicator[title="PDF Document"] {
    color: #dc3545;
}

.file-type-indicator[title="Image"] {
    color: #28a745;
}

.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;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    max-height: 2.6em;
}

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

.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;
    {% if g.user.preferences and g.user.preferences.note_preview_font %}
        {% set font = g.user.preferences.note_preview_font %}
        {% if font == 'sans-serif' %}
            font-family: Arial, Helvetica, sans-serif;
        {% elif font == 'serif' %}
            font-family: "Times New Roman", Times, serif;
        {% elif font == 'monospace' %}
            font-family: "Courier New", Courier, monospace;
        {% elif font == 'georgia' %}
            font-family: Georgia, serif;
        {% elif font == 'palatino' %}
            font-family: "Palatino Linotype", "Book Antiqua", Palatino, serif;
        {% elif font == 'garamond' %}
            font-family: Garamond, serif;
        {% elif font == 'bookman' %}
            font-family: "Bookman Old Style", serif;
        {% elif font == 'comic-sans' %}
            font-family: "Comic Sans MS", cursive;
        {% elif font == 'trebuchet' %}
            font-family: "Trebuchet MS", sans-serif;
        {% elif font == 'arial-black' %}
            font-family: "Arial Black", sans-serif;
        {% elif font == 'impact' %}
            font-family: Impact, sans-serif;
        {% endif %}
    {% endif %}
}

.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;
}

.empty-icon i {
    font-size: 3rem;
    color: #667eea;
}

/* Icon styling */
.folder-icon i, .tag-icon i, .visibility-link i, 
.filter-tag i, .note-meta i, .search-btn i,
.page-icon i {
    font-size: 1em;
}

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

/* 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;
    }
}

/* Image preview in note cards */
.note-image-preview {
    margin: 0.75rem 0;
    border-radius: 6px;
    overflow: hidden;
    background: #f8f9fa;
    max-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.note-image-preview img {
    width: 100%;
    height: auto;
    max-height: 200px;
    object-fit: contain;
}

/* PDF preview in note cards */
.note-pdf-preview {
    margin: 0.75rem 0;
    padding: 2rem;
    border-radius: 6px;
    background: #f8f9fa;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.note-pdf-preview i {
    font-size: 3rem;
    color: #dc3545;
}

.note-pdf-preview span {
    color: #6c757d;
    font-size: 0.875rem;
}

/* Upload modal */
.upload-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.upload-modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.upload-modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.upload-modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
}

.upload-modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #6c757d;
    transition: color 0.2s;
}

.upload-modal-close:hover {
    color: #333;
}

.upload-modal-body {
    padding: 1.5rem;
}

.upload-form-group {
    margin-bottom: 1rem;
}

.upload-form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #495057;
}

.file-input-wrapper {
    position: relative;
    overflow: hidden;
    display: inline-block;
    width: 100%;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    left: -9999px;
}

.file-input-label {
    display: block;
    padding: 0.75rem;
    border: 2px dashed #ced4da;
    border-radius: 6px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: #f8f9fa;
}

.file-input-label:hover {
    border-color: var(--primary-color);
    background: #fff;
}

.file-input-label i {
    font-size: 2rem;
    color: #6c757d;
    display: block;
    margin-bottom: 0.5rem;
}

#upload-preview {
    margin-top: 1rem;
    text-align: center;
}

#upload-preview img {
    max-width: 100%;
    max-height: 200px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.file-info {
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.file-info i {
    font-size: 2rem;
    color: #6c757d;
}

.file-size {
    color: #6c757d;
    font-size: 0.875rem;
}

.upload-modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid #e9ecef;
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* Upload buttons in label */
.upload-buttons {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

.upload-buttons .btn {
    padding: 0.375rem 0.75rem;
}

/* Progress bar */
#upload-progress {
    margin-top: 1rem;
}

.progress-bar {
    width: 100%;
    height: 20px;
    background: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-color);
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: #6c757d;
    text-align: center;
}

/* File list preview */
.file-list-preview {
    max-height: 200px;
    overflow-y: auto;
    margin-top: 1rem;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    padding: 0.5rem;
}

.file-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.375rem 0.5rem;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.875rem;
}

.file-list-item:last-child {
    border-bottom: none;
}

.file-list-item-name {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    overflow: hidden;
}

.file-list-item-name i {
    color: #6c757d;
    flex-shrink: 0;
}

.file-list-item-name span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-list-item-size {
    color: #6c757d;
    font-size: 0.75rem;
    flex-shrink: 0;
}

/* Drag and drop */
.file-input-label.drag-over {
    border-color: var(--primary-color);
    background: #e7f3ff;
}

/* Selection System Styles */
.bulk-actions-bar {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 1rem;
    display: none;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.bulk-actions-bar.active {
    display: flex;
}

.selection-info {
    font-weight: 500;
    color: #495057;
}

.bulk-actions {
    display: flex;
    gap: 0.5rem;
    margin-left: auto;
}

.bulk-action-btn {
    padding: 6px 12px;
    border: 1px solid #dee2e6;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.bulk-action-btn:hover {
    background: #f8f9fa;
    border-color: #adb5bd;
}

.bulk-action-btn.danger {
    color: #dc3545;
}

.bulk-action-btn.danger:hover {
    background: #dc3545;
    color: white;
    border-color: #dc3545;
}

/* Checkbox Styles */
.note-checkbox {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 10;
    width: 20px;
    height: 20px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
}

.note-card:hover .note-checkbox,
.note-checkbox:checked {
    opacity: 1;
}

.note-card.selected {
    border-color: #667eea;
    background: #f7f8ff;
}

.note-row.selected {
    background: #f7f8ff;
}

/* Select All Checkbox */
.select-all-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.select-all-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

/* Table Header Checkbox */
th.checkbox-column {
    width: 40px;
    text-align: center;
}

td.checkbox-column {
    text-align: center;
}

/* Table checkbox specific styles */
.notes-table .note-checkbox {
    position: relative !important;
    opacity: 1 !important;
    top: auto !important;
    left: auto !important;
    margin: 0 auto;
}

/* Move Modal Styles */
.move-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.move-modal.active {
    display: flex;
}

.move-modal-content {
    background: white;
    border-radius: 8px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.move-modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.move-modal-body {
    padding: 1.5rem;
}

.folder-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.move-modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid #e9ecef;
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

/* Preferences Modal Styles */
.preview-box {
    padding: 1rem;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background-color: #f9f9f9;
    min-height: 100px;
}

.preview-box p {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.preview-section {
    margin-top: 1.5rem;
}

.preview-section .form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    .bulk-actions-bar {
        flex-wrap: wrap;
    }
    
    .bulk-actions {
        width: 100%;
        margin-left: 0;
        margin-top: 0.5rem;
    }
}
</style>

<!-- Move Modal -->
<div class="move-modal" id="move-modal">
    <div class="move-modal-content">
        <div class="move-modal-header">
            <h3>Move Notes</h3>
            <button class="btn-close" onclick="closeMoveModal()">
                <i class="ti ti-x"></i>
            </button>
        </div>
        <div class="move-modal-body">
            <label for="move-folder-select">Select destination folder:</label>
            <select id="move-folder-select" class="folder-select">
                <option value="">No folder</option>
                {% for folder in folders %}
                <option value="{{ folder }}">{{ folder }}</option>
                {% endfor %}
            </select>
            <p class="text-muted">Move <span id="move-count">0</span> selected note(s) to this folder.</p>
        </div>
        <div class="move-modal-footer">
            <button class="btn btn-secondary" onclick="closeMoveModal()">Cancel</button>
            <button class="btn btn-primary" onclick="confirmMove()">Move</button>
        </div>
    </div>
</div>

<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;
}

// Upload functionality
document.getElementById('upload-btn').addEventListener('click', function() {
    showUploadModal();
});

function showUploadModal() {
    const modal = document.getElementById('upload-modal');
    modal.style.display = 'block';
}

function hideUploadModal() {
    const modal = document.getElementById('upload-modal');
    modal.style.display = 'none';
    // Reset form
    document.getElementById('upload-form').reset();
    document.getElementById('upload-preview').innerHTML = '';
    document.getElementById('upload-progress').style.display = 'none';
    document.getElementById('progress-fill').style.width = '0%';
    selectedFiles = [];
}

// Multiple file selection
function selectMultipleFiles() {
    document.getElementById('file-input-multiple').click();
}

// Folder selection
function selectFolder() {
    document.getElementById('file-input-folder').click();
}

// Handle file selection
let selectedFiles = [];

document.getElementById('file-input-folder').addEventListener('change', handleFileSelection);
document.getElementById('file-input-multiple').addEventListener('change', handleFileSelection);

function handleFileSelection(e) {
    const files = Array.from(e.target.files);
    if (files.length > 0) {
        selectedFiles = files.filter(file => {
            const ext = file.name.split('.').pop().toLowerCase();
            return ['md', 'markdown', 'jpg', 'jpeg', 'png', 'gif', 'webp', 'svg', 'txt', 'pdf', 'doc', 'docx'].includes(ext);
        });
        
        displayFilePreview();
    }
}

function displayFilePreview() {
    const preview = document.getElementById('upload-preview');
    
    if (selectedFiles.length === 0) {
        preview.innerHTML = '';
        return;
    }
    
    const fileList = document.createElement('div');
    fileList.className = 'file-list-preview';
    
    const summary = document.createElement('div');
    summary.style.marginBottom = '0.5rem';
    summary.innerHTML = `<strong>${selectedFiles.length} files selected</strong>`;
    fileList.appendChild(summary);
    
    selectedFiles.forEach((file, index) => {
        const item = document.createElement('div');
        item.className = 'file-list-item';
        
        const icon = getFileIcon(file.name);
        const path = file.webkitRelativePath || file.name;
        
        item.innerHTML = `
            <div class="file-list-item-name">
                <i class="ti ti-${icon}"></i>
                <span title="${path}">${path}</span>
            </div>
            <span class="file-list-item-size">${formatFileSize(file.size)}</span>
        `;
        
        fileList.appendChild(item);
    });
    
    preview.innerHTML = '';
    preview.appendChild(fileList);
}

function getFileIcon(filename) {
    const ext = filename.split('.').pop().toLowerCase();
    if (['jpg', 'jpeg', 'png', 'gif', 'webp', 'svg'].includes(ext)) return 'photo';
    if (['md', 'markdown'].includes(ext)) return 'markdown';
    if (['txt'].includes(ext)) return 'file-text';
    if (['pdf'].includes(ext)) return 'file-type-pdf';
    if (['doc', 'docx'].includes(ext)) return 'file-type-doc';
    return 'file';
}

// Drag and drop
const fileLabel = document.getElementById('file-input-label');

fileLabel.addEventListener('dragover', function(e) {
    e.preventDefault();
    this.classList.add('drag-over');
});

fileLabel.addEventListener('dragleave', function(e) {
    e.preventDefault();
    this.classList.remove('drag-over');
});

fileLabel.addEventListener('drop', function(e) {
    e.preventDefault();
    this.classList.remove('drag-over');
    
    const files = Array.from(e.dataTransfer.files);
    selectedFiles = files.filter(file => {
        const ext = file.name.split('.').pop().toLowerCase();
        return ['md', 'markdown', 'jpg', 'jpeg', 'png', 'gif', 'webp', 'svg', 'txt', 'pdf', 'doc', 'docx'].includes(ext);
    });
    
    displayFilePreview();
});

// Handle upload form submission
document.getElementById('upload-form').addEventListener('submit', async function(e) {
    e.preventDefault();
    
    if (selectedFiles.length === 0) {
        alert('Please select files to upload');
        return;
    }
    
    const submitBtn = this.querySelector('button[type="submit"]');
    const progressDiv = document.getElementById('upload-progress');
    const progressFill = document.getElementById('progress-fill');
    const progressText = document.getElementById('progress-text');
    
    // Disable submit button and show progress
    submitBtn.disabled = true;
    progressDiv.style.display = 'block';
    
    let successCount = 0;
    let errorCount = 0;
    const errors = [];
    
    // Upload files one by one
    for (let i = 0; i < selectedFiles.length; i++) {
        const file = selectedFiles[i];
        const formData = new FormData();
        
        // Add file
        formData.append('file', file);
        
        // Add folder path from webkitRelativePath if available
        if (file.webkitRelativePath) {
            const pathParts = file.webkitRelativePath.split('/');
            if (pathParts.length > 1) {
                // Remove filename, keep folder path
                pathParts.pop();
                const folderPath = pathParts.join('/');
                
                // Combine with base folder if specified
                const baseFolder = document.getElementById('upload-folder').value;
                if (baseFolder) {
                    formData.append('folder', baseFolder + '/' + folderPath);
                } else {
                    formData.append('folder', folderPath);
                }
            } else {
                // Just use base folder
                const folder = document.getElementById('upload-folder').value;
                if (folder) formData.append('folder', folder);
            }
        } else {
            // No webkitRelativePath, just use base folder
            const folder = document.getElementById('upload-folder').value;
            if (folder) formData.append('folder', folder);
        }
        
        // Add tags if specified
        const tags = document.getElementById('upload-tags').value;
        if (tags) formData.append('tags', tags);
        
        // Update progress
        const progress = ((i + 1) / selectedFiles.length) * 100;
        progressFill.style.width = progress + '%';
        progressText.textContent = `Uploading ${i + 1} of ${selectedFiles.length}: ${file.name}`;
        
        try {
            const response = await fetch('/api/notes/upload', {
                method: 'POST',
                body: formData
            });
            
            const data = await response.json();
            
            if (data.success) {
                successCount++;
            } else {
                errorCount++;
                errors.push(`${file.name}: ${data.error || 'Unknown error'}`);
            }
        } catch (error) {
            errorCount++;
            errors.push(`${file.name}: Network error`);
        }
    }
    
    // Show results
    if (errorCount === 0) {
        progressText.textContent = `Successfully uploaded ${successCount} files!`;
        setTimeout(() => {
            window.location.reload();
        }, 1000);
    } else {
        progressText.textContent = `Uploaded ${successCount} files, ${errorCount} failed`;
        if (errors.length > 0) {
            alert('Failed uploads:\n' + errors.join('\n'));
        }
        submitBtn.disabled = false;
    }
});

function formatFileSize(bytes) {
    if (bytes === 0) return '0 Bytes';
    const k = 1024;
    const sizes = ['Bytes', 'KB', 'MB', 'GB'];
    const i = Math.floor(Math.log(bytes) / Math.log(k));
    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
}

// Close modal when clicking outside
window.addEventListener('click', function(e) {
    const modal = document.getElementById('upload-modal');
    if (e.target === modal) {
        hideUploadModal();
    }
});

// Selection Management
let selectedNotes = new Set();

function updateSelectionUI() {
    const count = selectedNotes.size;
    document.getElementById('selected-count').textContent = count;
    document.getElementById('move-count').textContent = count;
    
    const bulkActionsBar = document.getElementById('bulk-actions-bar');
    if (count > 0) {
        bulkActionsBar.classList.add('active');
    } else {
        bulkActionsBar.classList.remove('active');
    }
    
    // Update visual state of cards/rows
    document.querySelectorAll('.note-card, .note-row').forEach(el => {
        const noteId = el.dataset.noteId;
        if (selectedNotes.has(noteId)) {
            el.classList.add('selected');
        } else {
            el.classList.remove('selected');
        }
    });
    
    // Update select all checkbox state
    const totalCheckboxes = document.querySelectorAll('.note-checkbox').length;
    const selectAllCheckbox = document.getElementById('select-all');
    const selectAllTableCheckbox = document.getElementById('select-all-table');
    
    if (selectedNotes.size === totalCheckboxes && totalCheckboxes > 0) {
        if (selectAllCheckbox) selectAllCheckbox.checked = true;
        if (selectAllTableCheckbox) selectAllTableCheckbox.checked = true;
    } else if (selectedNotes.size === 0) {
        if (selectAllCheckbox) selectAllCheckbox.checked = false;
        if (selectAllTableCheckbox) selectAllTableCheckbox.checked = false;
    } else {
        if (selectAllCheckbox) selectAllCheckbox.indeterminate = true;
        if (selectAllTableCheckbox) selectAllTableCheckbox.indeterminate = true;
    }
}

// Individual checkbox handling
document.addEventListener('change', function(e) {
    if (e.target.classList.contains('note-checkbox')) {
        const noteId = e.target.dataset.noteId;
        if (e.target.checked) {
            selectedNotes.add(noteId);
        } else {
            selectedNotes.delete(noteId);
        }
        updateSelectionUI();
    }
});

// Select all handling
document.getElementById('select-all').addEventListener('change', function(e) {
    if (e.target.checked) {
        document.querySelectorAll('.note-checkbox').forEach(cb => {
            cb.checked = true;
            selectedNotes.add(cb.dataset.noteId);
        });
    } else {
        document.querySelectorAll('.note-checkbox').forEach(cb => {
            cb.checked = false;
        });
        selectedNotes.clear();
    }
    updateSelectionUI();
});

// Select all table handling
const selectAllTable = document.getElementById('select-all-table');
if (selectAllTable) {
    selectAllTable.addEventListener('change', function(e) {
        if (e.target.checked) {
            document.querySelectorAll('.note-checkbox').forEach(cb => {
                cb.checked = true;
                selectedNotes.add(cb.dataset.noteId);
            });
        } else {
            document.querySelectorAll('.note-checkbox').forEach(cb => {
                cb.checked = false;
            });
            selectedNotes.clear();
        }
        updateSelectionUI();
    });
}

// Bulk actions
document.getElementById('bulk-move-btn').addEventListener('click', function() {
    if (selectedNotes.size === 0) {
        alert('Please select at least one note.');
        return;
    }
    document.getElementById('move-modal').classList.add('active');
});

document.getElementById('bulk-delete-btn').addEventListener('click', function() {
    if (selectedNotes.size === 0) {
        alert('Please select at least one note.');
        return;
    }
    
    const count = selectedNotes.size;
    if (confirm(`Are you sure you want to delete ${count} note(s)? This action cannot be undone.`)) {
        bulkDelete();
    }
});

// Move modal functions
function closeMoveModal() {
    document.getElementById('move-modal').classList.remove('active');
}

function confirmMove() {
    const folder = document.getElementById('move-folder-select').value;
    bulkMove(folder);
}

// API calls
async function bulkMove(folder) {
    try {
        const response = await fetch('/api/notes/bulk-move', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify({
                note_ids: Array.from(selectedNotes),
                folder: folder
            })
        });
        
        const data = await response.json();
        if (data.success) {
            window.location.reload();
        } else {
            alert('Error moving notes: ' + (data.error || 'Unknown error'));
        }
    } catch (error) {
        alert('Error moving notes: ' + error.message);
    }
}

async function bulkDelete() {
    try {
        const response = await fetch('/api/notes/bulk-delete', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify({
                note_ids: Array.from(selectedNotes)
            })
        });
        
        const data = await response.json();
        if (data.success) {
            window.location.reload();
        } else {
            alert('Error deleting notes: ' + (data.error || 'Unknown error'));
        }
    } catch (error) {
        alert('Error deleting notes: ' + error.message);
    }
}

// Close move modal when clicking outside
window.addEventListener('click', function(e) {
    const moveModal = document.getElementById('move-modal');
    if (e.target === moveModal) {
        closeMoveModal();
    }
    
    const preferencesModal = document.getElementById('preferences-modal');
    if (e.target === preferencesModal) {
        closePreferencesModal();
    }
});

// Font families mapping
const fontFamilies = {
    'system': 'inherit',
    'sans-serif': 'Arial, Helvetica, sans-serif',
    'serif': '"Times New Roman", Times, serif',
    'monospace': '"Courier New", Courier, monospace',
    'georgia': 'Georgia, serif',
    'palatino': '"Palatino Linotype", "Book Antiqua", Palatino, serif',
    'garamond': 'Garamond, serif',
    'bookman': '"Bookman Old Style", serif',
    'comic-sans': '"Comic Sans MS", cursive',
    'trebuchet': '"Trebuchet MS", sans-serif',
    'arial-black': '"Arial Black", sans-serif',
    'impact': 'Impact, sans-serif'
};

// Handle font preview in modal
document.getElementById('note_preview_font').addEventListener('change', function() {
    const selectedFont = this.value;
    const previewBox = document.getElementById('fontPreview');
    previewBox.style.fontFamily = fontFamilies[selectedFont] || 'inherit';
});

// Handle preferences form submission
document.getElementById('note-preferences-form').addEventListener('submit', async function(e) {
    e.preventDefault();
    
    const formData = new FormData(this);
    
    try {
        const response = await fetch(this.action, {
            method: 'POST',
            headers: {
                'X-Requested-With': 'XMLHttpRequest',
            },
            body: formData
        });
        
        const data = await response.json();
        
        if (data.success) {
            // Apply font immediately without page reload
            const font = data.font;
            
            // Update all note previews
            document.querySelectorAll('.note-preview').forEach(preview => {
                preview.style.fontFamily = fontFamilies[font] || 'inherit';
            });
            
            // Close modal
            closePreferencesModal();
            
            // Show success toast or feedback
            // You could add a toast notification here
        } else {
            alert('Error saving preferences: ' + (data.error || 'Unknown error'));
        }
    } catch (error) {
        alert('Error saving preferences: ' + error.message);
    }
});

// Preferences modal functions
document.getElementById('preferences-btn').addEventListener('click', function() {
    document.getElementById('preferences-modal').classList.add('active');
    // Initialize preview font
    const currentFont = document.getElementById('note_preview_font').value;
    const previewBox = document.getElementById('fontPreview');
    previewBox.style.fontFamily = fontFamilies[currentFont] || 'inherit';
});

function closePreferencesModal() {
    document.getElementById('preferences-modal').classList.remove('active');
}
</script>

{% endblock %}