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offlineu/templates/course_dashboard.html
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rmsitzandClaude Sonnet 5 a6c49d3762 Add Recently Added, bulk rename, time remaining, library stats, backup export
Five more usability features on top of the search/thumbnails batch:

- Recently Added: dashboard card of courses by folder mtime, separate from
  Recently Viewed (watched vs. just showed up on disk).
- Bulk find/replace rename across every course/folder name at once, with a
  mandatory preview step before anything touches disk. Refactored the
  single-item rename route to share the same validate/apply logic.
- Estimated time remaining on the loaded course's stats card, computed only
  from lessons that have actually reported a duration.
- Library-wide stats overview: total courses, lessons tracked, time
  watched, daily streak - read from each course's small progress file
  rather than re-scanning course contents.
- One-click backup/export zip of settings, hidden-paths, recently-viewed,
  and every course's progress/notes.

Also fixes a real performance bug found along the way: search was routing
through list_library_directory, which computes a full recursive file count
and thumbnail lookup for every course at every level regardless of match -
turning a search into an O(every file in the library) scan. Gave search its
own lightweight directory-only walk (iter_all_courses), now shared by
Recently Added and the stats overview too, so the expensive per-course work
only runs for courses that actually match.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-22 11:36:05 -04:00

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>{% if course %}{{ course.name }} - OfflineU{% else %}OfflineU{% endif %}</title>
<link rel="manifest" href="/static/manifest.json">
<meta name="theme-color" content="#007acc">
<link rel="apple-touch-icon" href="/static/icons/icon-192.png">
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
:root {
--bg-primary: #1a1a1a;
--bg-secondary: #2d2d2d;
--bg-tertiary: #3d3d3d;
--bg-tertiary-hover: #404040;
--text-primary: #e0e0e0;
--text-muted: #999;
--border-color: #555;
--accent: #007acc;
--accent-hover: #005a9e;
--font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
--font-size-base: 16px;
--container-max-width: 1600px;
--radius: 8px;
}
[data-theme="light"] {
--bg-primary: #f2f2f2;
--bg-secondary: #ffffff;
--bg-tertiary: #eeeeee;
--bg-tertiary-hover: #e2e2e2;
--text-primary: #222222;
--text-muted: #666666;
--border-color: #cccccc;
}
[data-density="compact"] .container { padding: 10px; }
[data-density="compact"] .card,
[data-density="compact"] .lesson-item,
[data-density="compact"] .tree-header { padding: 10px; margin-bottom: 8px; }
[data-card-style="elevated"] .card,
[data-card-style="elevated"] .lesson-item,
[data-card-style="elevated"] .tree-header {
box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}
[data-card-style="bordered"] .card,
[data-card-style="bordered"] .lesson-item,
[data-card-style="bordered"] .tree-header {
border: 1px solid var(--border-color);
}
html, body {
height: 100%;
}
body {
font-family: var(--font-family);
font-size: var(--font-size-base);
background: var(--bg-primary);
color: var(--text-primary);
line-height: 1.6;
display: flex;
flex-direction: column;
min-height: 100vh;
}
.page-content {
flex: 1;
}
.container {
max-width: var(--container-max-width);
width: 95%;
margin: 0 auto;
padding: 20px;
}
.app-header {
background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
padding: 28px 0;
margin-bottom: 30px;
border-bottom: 3px solid var(--accent);
box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}
.app-header .container {
display: flex;
align-items: center;
justify-content: space-between;
gap: 20px;
flex-wrap: wrap;
}
.brand {
display: flex;
align-items: center;
gap: 14px;
text-decoration: none;
color: inherit;
cursor: pointer;
}
.brand-icon {
font-size: 2.2em;
line-height: 1;
}
.brand h1 {
color: var(--accent);
font-size: 1.9em;
letter-spacing: 0.5px;
}
.brand .tagline {
color: var(--text-muted);
font-size: 0.85em;
margin-top: 2px;
}
.header-course-badge {
background: var(--bg-primary);
border: 1px solid var(--accent);
color: var(--text-primary);
padding: 8px 16px;
border-radius: var(--radius);
font-size: 0.9em;
max-width: 340px;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.app-footer {
background: var(--bg-secondary);
border-top: 1px solid var(--border-color);
margin-top: 40px;
padding: 18px 0;
}
.app-footer .container {
display: flex;
align-items: center;
justify-content: space-between;
gap: 15px;
flex-wrap: wrap;
}
.footer-brand {
color: var(--text-muted);
font-size: 0.9em;
display: flex;
align-items: center;
gap: 8px;
}
.footer-links {
display: flex;
gap: 20px;
}
.footer-links a {
color: var(--text-muted);
text-decoration: none;
font-size: 0.9em;
display: flex;
align-items: center;
gap: 6px;
transition: color 0.2s;
}
.footer-links a:hover {
color: var(--accent);
}
.nav {
background: var(--bg-tertiary);
padding: 10px 0;
margin-bottom: 20px;
}
.nav .container {
display: flex;
align-items: center;
gap: 15px;
}
.nav a {
color: var(--text-primary);
text-decoration: none;
padding: 10px 15px;
border-radius: var(--radius);
transition: background 0.3s;
}
.nav a:hover {
background: var(--accent);
}
.card {
background: var(--bg-secondary);
border-radius: var(--radius);
padding: 20px;
margin-bottom: 20px;
border-left: 4px solid var(--accent);
}
.btn {
background: var(--accent);
color: white;
border: none;
padding: 12px 24px;
border-radius: var(--radius);
cursor: pointer;
text-decoration: none;
display: inline-block;
transition: background 0.3s;
font-size: 14px;
}
.btn:hover {
background: var(--accent-hover);
}
.btn:disabled {
background: #666;
cursor: not-allowed;
}
.btn-secondary {
background: #666;
}
.btn-secondary:hover {
background: #555;
}
.progress-bar {
background: #444;
border-radius: 10px;
overflow: hidden;
height: 20px;
margin: 10px 0;
}
.progress-fill {
background: var(--accent);
height: 100%;
transition: width 0.3s ease;
border-radius: 10px;
}
.stats-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
gap: 12px;
margin-top: 12px;
}
.stats-tile {
background: var(--bg-tertiary);
border-radius: var(--radius);
padding: 14px 10px;
text-align: center;
}
.stats-tile-value {
font-size: 1.5em;
font-weight: 700;
color: var(--accent);
}
.stats-tile-label {
font-size: 0.8em;
color: var(--text-muted);
margin-top: 2px;
}
.library-breadcrumb {
color: var(--text-muted);
font-size: 13px;
margin-top: 6px;
display: flex;
flex-wrap: wrap;
align-items: center;
gap: 4px;
}
.library-breadcrumb .crumb {
cursor: pointer;
max-width: 160px;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.library-breadcrumb .crumb:not(.current):hover {
color: var(--accent);
text-decoration: underline;
}
.library-breadcrumb .crumb.current {
color: var(--text-primary);
font-weight: 600;
cursor: default;
}
.library-breadcrumb .crumb-sep {
opacity: 0.5;
}
/* Dynamic Directory Tree Styles */
.tree-container {
margin-top: 20px;
}
.tree-item {
margin-bottom: 5px;
}
.tree-header {
background: var(--bg-tertiary);
padding: 12px 15px;
border-radius: var(--radius);
cursor: pointer;
display: flex;
align-items: center;
justify-content: space-between;
transition: background 0.3s;
border-left: 3px solid #666;
}
.tree-header:hover {
background: var(--bg-tertiary-hover);
}
.tree-header.directory {
border-left-color: var(--accent);
}
.tree-header.lesson {
border-left-color: #28a745;
}
.tree-header.completed {
border-left-color: #28a745;
background: #1e3d1e;
}
.tree-header.completed:hover {
background: #2d5a2d;
}
.tree-title {
display: flex;
align-items: center;
gap: 10px;
flex: 1;
min-width: 0;
}
.tree-icon {
font-size: 1.2em;
width: 20px;
text-align: center;
flex-shrink: 0;
}
.tree-name {
font-weight: 500;
flex: 1;
min-width: 0;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.tree-stats {
font-size: 0.85em;
color: var(--text-muted);
margin-left: 10px;
flex-shrink: 0;
white-space: nowrap;
}
.tree-toggle {
background: none;
border: none;
color: var(--text-primary);
font-size: 1.2em;
cursor: pointer;
padding: 5px;
border-radius: 3px;
transition: background 0.3s;
}
.tree-toggle:hover {
background: #555;
}
.tree-content {
margin-left: 25px;
margin-top: 5px;
display: none;
}
.tree-content.expanded {
display: block;
}
.lesson-item {
background: var(--bg-tertiary);
padding: 10px 15px;
border-radius: var(--radius);
margin-bottom: 5px;
display: flex;
justify-content: space-between;
align-items: center;
transition: all 0.3s;
cursor: pointer;
border-left: 3px solid #666;
position: relative;
overflow: hidden;
}
.lesson-item:hover {
border-left-color: var(--accent);
background: var(--bg-tertiary-hover);
transform: translateX(5px);
}
.lesson-item.completed {
border-left-color: #28a745;
background: #1e3d1e;
}
.lesson-item.completed:hover {
background: #2d5a2d;
}
.lesson-item.in-progress {
border-left-color: var(--accent);
}
.lesson-progress-track {
position: absolute;
bottom: 0;
left: 0;
right: 0;
height: 3px;
background: rgba(255, 255, 255, 0.08);
}
.lesson-progress-fill {
height: 100%;
background: var(--accent);
}
.lesson-item.completed .lesson-progress-fill {
background: #28a745;
}
.watched-badge {
font-size: 0.75em;
background: var(--bg-primary);
color: var(--accent);
padding: 2px 7px;
border-radius: 3px;
border: 1px solid var(--accent);
white-space: nowrap;
}
.lesson-title {
display: flex;
align-items: center;
gap: 8px;
flex: 1;
min-width: 0;
}
.lesson-icon {
font-size: 1.1em;
flex-shrink: 0;
}
.lesson-thumb {
width: 32px;
height: 32px;
object-fit: cover;
border-radius: 4px;
flex-shrink: 0;
display: block;
}
.library-toolbar {
display: flex;
gap: 10px;
margin-top: 12px;
flex-wrap: wrap;
}
.library-search-input {
flex: 1;
min-width: 160px;
background: var(--bg-tertiary);
color: var(--text-primary);
border: 1px solid var(--border-color);
border-radius: var(--radius);
padding: 8px 12px;
font-size: 14px;
font-family: var(--font-family);
}
.library-sort-select {
background: var(--bg-tertiary);
color: var(--text-primary);
border: 1px solid var(--border-color);
border-radius: var(--radius);
padding: 8px 12px;
font-size: 14px;
}
.lesson-name {
flex: 1;
min-width: 0;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.lesson-meta {
font-size: 0.85em;
color: var(--text-muted);
display: flex;
align-items: center;
gap: 5px;
flex-shrink: 0;
min-width: 0;
max-width: 45%;
}
.lesson-meta-text {
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
min-width: 0;
}
.lesson-type {
padding: 2px 6px;
border-radius: 3px;
font-size: 0.8em;
font-weight: 500;
text-transform: uppercase;
}
.lesson-type.video { background: #e74c3c; color: white; }
.lesson-type.audio { background: #9b59b6; color: white; }
.lesson-type.text { background: #34495e; color: white; }
.lesson-type.quiz { background: #f39c12; color: white; }
.lesson-type.mixed { background: #16a085; color: white; }
.status-icon {
font-size: 1.2em;
font-weight: bold;
}
.status-icon.completed {
color: #28a745;
}
.status-icon.pending {
color: #666;
}
.last-accessed {
background: #2d5a2d;
border-left-color: #28a745;
margin-top: 10px;
padding: 10px;
border-radius: 5px;
}
@media (max-width: 768px) {
.container {
padding: 10px;
}
.header h1 {
font-size: 2em;
}
.nav .container {
flex-direction: column;
gap: 10px;
align-items: flex-start;
}
.tree-content {
margin-left: 15px;
}
}
@media (max-width: 600px) {
.lesson-item {
flex-direction: column;
align-items: flex-start;
gap: 6px;
}
.lesson-title,
.lesson-meta {
width: 100%;
max-width: 100%;
}
.lesson-name,
.lesson-meta-text {
overflow: visible;
text-overflow: clip;
white-space: normal;
overflow-wrap: break-word;
word-break: break-word;
}
}
</style>
</head>
<body>
<div class="app-header">
<div class="container">
<a href="/reset_course" class="brand">
<span class="brand-icon">📚</span>
<div>
<h1>OfflineU</h1>
<p class="tagline">Your self-hosted course library</p>
</div>
</a>
{% if course %}
<div class="header-course-badge">{{ course.name }}</div>
{% endif %}
</div>
</div>
<div class="page-content">
{% if course %}
<div class="nav">
<div class="container">
<a href="/reset_course">← Select Different Course</a>
<a href="#stats">Progress</a>
<span style="color: #666; margin-left: auto;">
{{ stats.total_lessons }} lessons
</span>
</div>
</div>
<div class="container">
<div class="card">
<h2>{{ course.name }}</h2>
<div style="display: flex; justify-content: space-between; align-items: center; margin-top: 15px; flex-wrap: wrap; gap: 10px;">
<div>
<strong>{{ stats.completed_lessons }}/{{ stats.total_lessons }}</strong> lessons completed
</div>
<div style="text-align: right;">
<div style="color: #007acc; font-size: 1.2em;">
{{ "%.1f"|format(stats.completion_percentage) }}%
</div>
{% if stats.remaining_display %}
<div style="color: var(--text-muted); font-size: 0.85em;">
~{{ stats.remaining_display }} remaining
</div>
{% endif %}
</div>
</div>
<div class="progress-bar">
<div class="progress-fill" style="width: {{ stats.completion_percentage }}%;"></div>
</div>
{% if stats.total_lessons %}
<button class="btn btn-secondary" style="margin-top: 5px;" onclick="markCourseWatched()">
Mark all as completed
</button>
{% endif %}
{% if stats.last_accessed_path %}
<div class="last-accessed">
<strong>Last Accessed:</strong> {{ stats.last_accessed_path }}
<a href="/lesson/{{ stats.last_accessed_path }}" class="btn" style="margin-left: 10px;">
Continue
</a>
</div>
{% endif %}
</div>
<div class="tree-container">
{% macro render_tree_node(node, depth=0) %}
<div class="tree-item">
<div class="tree-header directory" onclick="toggleTree(this)">
<div class="tree-title">
<span class="tree-icon">📁</span>
<span class="tree-name">{{ node.name }}</span>
<span class="tree-stats">
{{ (node.children|length + node.lessons|length) }} items
</span>
</div>
{% if node.children or node.lessons %}
<button class="tree-toggle"></button>
{% endif %}
</div>
{% if node.children or node.lessons %}
<div class="tree-content">
{% for child_name, child_node in node.children.items() %}
{{ render_tree_node(child_node, depth + 1) }}
{% endfor %}
{% for lesson in node.lessons %}
{% set lesson_relative_path = lesson.path|replace('\\', '/')|replace(course.path|replace('\\', '/'), '')|replace('//', '/')|replace('/', '', 1) %}
{% set percent_watched = 100 if lesson.completed else (((100 * lesson.progress_seconds / lesson.duration_seconds)|round|int) if (lesson.duration_seconds and lesson.progress_seconds) else 0) %}
<div class="lesson-item {% if lesson.completed %}completed{% elif percent_watched %}in-progress{% endif %}"
onclick="window.location.href='/lesson/{{ lesson_relative_path }}/{{ lesson.title|replace(' ', '_') }}'">
<div class="lesson-title">
<span class="lesson-icon">
{% if lesson.lesson_type == 'video' %}🎥
{% elif lesson.lesson_type == 'audio' %}🎵
{% elif lesson.lesson_type == 'quiz' %}📝
{% elif lesson.lesson_type == 'mixed' %}📦
{% else %}📄{% endif %}
</span>
<span class="lesson-name">{{ lesson.title }}</span>
</div>
<div class="lesson-meta">
<span class="lesson-type {{ lesson.lesson_type }}">{{ lesson.lesson_type|title }}</span>
{% if lesson.completed %}
<span class="status-icon completed"></span>
{% elif percent_watched %}
<span class="watched-badge">{{ percent_watched }}% watched</span>
{% else %}
<span class="status-icon pending"></span>
{% endif %}
</div>
{% if percent_watched %}
<div class="lesson-progress-track"><div class="lesson-progress-fill" style="width: {{ percent_watched }}%;"></div></div>
{% endif %}
</div>
{% endfor %}
</div>
{% endif %}
</div>
{% endmacro %}
{{ render_tree_node(course.root_node) }}
</div>
</div>
{% else %}
{% macro render_view_row(view) %}
<div class="lesson-item {% if view.completed %}completed{% endif %} {% if view.percent_watched and not view.completed %}in-progress{% endif %}"
onclick="window.location.href='/recent/open?course_path={{ view.course_path | urlencode }}&lesson_path={{ view.lesson_path | urlencode }}'">
<div class="lesson-title">
{% if view.has_thumbnail %}
<img class="lesson-thumb" src="/library/thumbnail?path={{ view.course_path | urlencode }}" alt=""
onerror="this.replaceWith(courseFallbackIcon('▶️'))">
{% else %}
<span class="lesson-icon">▶️</span>
{% endif %}
<span class="lesson-name">{{ view.lesson_title }}</span>
</div>
<div class="lesson-meta">
{% if view.completed %}
<span class="status-icon completed"></span>
{% elif view.percent_watched %}
<span class="watched-badge">{{ view.percent_watched }}% watched</span>
{% endif %}
<span class="lesson-meta-text">{{ view.course_name }}{% if view.viewed_display %} · {{ view.viewed_display }}{% endif %}</span>
</div>
{% if view.percent_watched %}
<div class="lesson-progress-track"><div class="lesson-progress-fill" style="width: {{ view.percent_watched }}%;"></div></div>
{% endif %}
</div>
{% endmacro %}
{% macro render_course_row(item, meta_text) %}
<div class="lesson-item" onclick="loadCoursePath('{{ item.path|replace("'", "\\'") }}')">
<div class="lesson-title">
{% if item.has_thumbnail %}
<img class="lesson-thumb" src="/library/thumbnail?path={{ item.path | urlencode }}" alt=""
onerror="this.replaceWith(courseFallbackIcon('🎓'))">
{% else %}
<span class="lesson-icon">🎓</span>
{% endif %}
<span class="lesson-name">{{ item.name }}</span>
</div>
<span class="lesson-meta">{{ meta_text }}</span>
</div>
{% endmacro %}
{% if library_stats and library_stats.total_courses %}
<div class="container">
<div class="card">
<h2>📊 Library Stats</h2>
<div class="stats-grid">
<div class="stats-tile">
<div class="stats-tile-value">{{ library_stats.total_courses }}</div>
<div class="stats-tile-label">Courses</div>
</div>
<div class="stats-tile">
<div class="stats-tile-value">{{ library_stats.completed_lessons }}/{{ library_stats.lessons_tracked }}</div>
<div class="stats-tile-label">Lessons completed</div>
</div>
<div class="stats-tile">
<div class="stats-tile-value">{{ library_stats.watched_display }}</div>
<div class="stats-tile-label">Watched</div>
</div>
<div class="stats-tile">
<div class="stats-tile-value">{{ library_stats.streak_days }}</div>
<div class="stats-tile-label">Day streak</div>
</div>
</div>
</div>
</div>
{% endif %}
{% if recently_added %}
<div class="container">
<div class="card">
<h2>🆕 Recently Added</h2>
<div style="margin-top: 12px;">
{% for item in recently_added %}
{{ render_course_row(item, item.added_display) }}
{% endfor %}
</div>
</div>
</div>
{% endif %}
{% if continue_watching %}
<div class="container">
<div class="card">
<h2>▶ Continue Watching</h2>
<div style="margin-top: 12px;">
{% for view in continue_watching %}
{{ render_view_row(view) }}
{% endfor %}
</div>
</div>
</div>
{% endif %}
{% if recent_views %}
<div class="container">
<div class="card">
<h2>🕐 Recently Viewed</h2>
<div style="margin-top: 12px;">
{% for view in recent_views %}
{{ render_view_row(view) }}
{% endfor %}
</div>
</div>
</div>
{% endif %}
<div class="container">
<div class="card" id="library-card">
<h2>Your Courses</h2>
<div class="library-toolbar">
<input type="text" id="library-search-input" class="library-search-input"
placeholder="Search courses…" oninput="handleLibrarySearchInput(this.value)">
<select id="library-sort" class="library-sort-select" onchange="reapplySort()">
<option value="name-asc">Name (A→Z)</option>
<option value="name-desc">Name (Z→A)</option>
</select>
</div>
<p id="library-path-bar" class="library-breadcrumb"></p>
<div id="library-groups" style="margin-top: 15px;"></div>
</div>
</div>
{% endif %}
</div>
<footer class="app-footer">
<div class="container">
<div class="footer-brand">
📚 <a href="/reset_course" style="color: inherit; text-decoration: none;">OfflineU</a>
</div>
<div class="footer-links">
<a href="/help">❓ Help</a>
<a href="/settings">⚙ Settings</a>
</div>
</div>
</footer>
<script>
function toggleTree(element) {
console.log('Toggle clicked:', element);
// Find the content div that comes after this header
const content = element.nextElementSibling;
const toggle = element.querySelector('.tree-toggle');
console.log('Content element:', content);
console.log('Toggle element:', toggle);
if (content && content.classList.contains('tree-content')) {
const isExpanded = content.classList.contains('expanded');
content.classList.toggle('expanded');
if (toggle) {
toggle.textContent = content.classList.contains('expanded') ? '▼' : '▶';
}
console.log('Toggled tree, expanded:', content.classList.contains('expanded'));
} else {
console.log('No content element found or not tree-content');
}
}
// Single-level drill-down: the Library browser shows one folder's
// contents at a time (replacing the list, not nesting under it) and
// tracks how we got here in libraryTrail so a breadcrumb can jump
// back up. Much less horizontal space wasted than the old
// indent-per-level accordion, especially on narrow screens.
let libraryTrail = []; // [{name, path}], root is implicit (not in the array)
let lastLibraryItems = null; // whatever's on screen right now (browse or search), for re-sort without re-fetching
let searchActive = false;
let searchDebounceTimer = null;
function loadLibrary() {
const libraryCard = document.getElementById('library-card');
if (!libraryCard) return;
libraryTrail = [];
fetchLibraryLevel(null);
}
function fetchLibraryLevel(path) {
searchActive = false;
const searchInput = document.getElementById('library-search-input');
if (searchInput) searchInput.value = '';
const container = document.getElementById('library-groups');
container.innerHTML = '<p style="color:#999; padding: 6px 0;">Loading...</p>';
const url = path ? `/library?path=${encodeURIComponent(path)}` : '/library';
fetch(url)
.then(r => r.json())
.then(data => {
renderLibraryBreadcrumb();
renderLibraryLevel(data);
})
.catch(() => {
container.innerHTML =
'<p style="color:#ff6b6b;">Could not reach the library scanner.</p>';
});
}
function renderLibraryBreadcrumb() {
const bar = document.getElementById('library-path-bar');
const atRoot = libraryTrail.length === 0;
let html = `<span class="crumb ${atRoot ? 'current' : ''}"` +
(atRoot ? '' : ` onclick="goToLibraryCrumb(-1)"`) + `>Library</span>`;
libraryTrail.forEach((crumb, i) => {
const isLast = i === libraryTrail.length - 1;
html += ` <span class="crumb-sep">/</span> ` +
`<span class="crumb ${isLast ? 'current' : ''}"` +
(isLast ? '' : ` onclick="goToLibraryCrumb(${i})"`) +
`>${crumb.name}</span>`;
});
bar.innerHTML = html;
}
function goToLibraryCrumb(index) {
if (index < 0) {
libraryTrail = [];
fetchLibraryLevel(null);
return;
}
const target = libraryTrail[index];
libraryTrail = libraryTrail.slice(0, index + 1);
fetchLibraryLevel(target.path);
}
function renderLibraryLevel(data) {
const container = document.getElementById('library-groups');
const isRoot = libraryTrail.length === 0;
if (!data.items || data.items.length === 0) {
lastLibraryItems = null;
const reason = (data.errors && data.errors.length)
? data.errors.join(' ')
: (isRoot ? `No course folders found under ${data.library_path}.` : 'No courses in here.');
container.innerHTML = `<p style="color:#999; padding: 6px 0;">${reason}${isRoot ? ' You can still load a course by path below.' : ''}</p>`;
return;
}
lastLibraryItems = data.items;
renderItemRows(sortLibraryItems(data.items));
}
function enterLibraryDir(path, name) {
libraryTrail.push({ name: name, path: path });
fetchLibraryLevel(path);
}
// Fallback if a course's thumbnail image 404s/errors after the row
// already rendered (e.g. the file was removed on disk in between) -
// swaps back to the plain icon rather than showing a broken image.
function courseFallbackIcon(emoji) {
const span = document.createElement('span');
span.className = 'lesson-icon';
span.textContent = emoji;
return span;
}
function courseRowHtml(item) {
const safePath = item.path.replace(/'/g, "\\'");
const iconHtml = item.has_thumbnail
? `<img class="lesson-thumb" src="/library/thumbnail?path=${encodeURIComponent(item.path)}" alt="" onerror="this.replaceWith(courseFallbackIcon('🎓'))">`
: `<span class="lesson-icon">🎓</span>`;
return `
<div class="lesson-item" onclick="loadCoursePath('${safePath}')">
<div class="lesson-title">
${iconHtml}
<span class="lesson-name">${item.name}</span>
</div>
<span class="lesson-meta">${item.media_files} media file${item.media_files === 1 ? '' : 's'}</span>
</div>
`;
}
function directoryRowHtml(item) {
const safePath = item.path.replace(/'/g, "\\'");
const safeName = item.name.replace(/'/g, "\\'");
return `
<div class="tree-header directory" onclick="enterLibraryDir('${safePath}', '${safeName}')">
<div class="tree-title">
<span class="tree-icon">📁</span>
<span class="tree-name">${item.name}</span>
</div>
<span class="tree-toggle"></span>
</div>
`;
}
function renderItemRows(items) {
document.getElementById('library-groups').innerHTML =
items.map(item => item.type === 'course' ? courseRowHtml(item) : directoryRowHtml(item)).join('');
}
function sortLibraryItems(items) {
const order = document.getElementById('library-sort').value;
const sorted = items.slice();
sorted.sort((a, b) => order === 'name-desc'
? b.name.localeCompare(a.name)
: a.name.localeCompare(b.name));
return sorted;
}
function reapplySort() {
if (!lastLibraryItems) return;
renderItemRows(sortLibraryItems(lastLibraryItems));
}
// ---- Search ----
function handleLibrarySearchInput(value) {
clearTimeout(searchDebounceTimer);
const query = value.trim();
if (!query) {
fetchLibraryLevel(libraryTrail.length ? libraryTrail[libraryTrail.length - 1].path : null);
return;
}
searchDebounceTimer = setTimeout(() => runLibrarySearch(query), 300);
}
function runLibrarySearch(query) {
searchActive = true;
const container = document.getElementById('library-groups');
container.innerHTML = '<p style="color:#999; padding: 6px 0;">Searching...</p>';
fetch(`/library/search?q=${encodeURIComponent(query)}`)
.then(r => r.json())
.then(data => {
document.getElementById('library-path-bar').innerHTML =
`<span class="crumb current" style="max-width: none;">Search results for "${query}"</span>`;
lastLibraryItems = data.results;
if (!data.results.length) {
container.innerHTML = `<p style="color:#999; padding: 6px 0;">No courses match "${query}".</p>`;
return;
}
renderItemRows(sortLibraryItems(data.results));
})
.catch(() => {
container.innerHTML = '<p style="color:#ff6b6b;">Search failed.</p>';
});
}
function loadCoursePath(path) {
fetch('/load_course', {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({course_path: path})
})
.then(r => r.json())
.then(data => {
if (data.success) {
location.reload();
} else {
alert('Error: ' + data.error);
}
});
}
function markCourseWatched() {
if (!confirm('Mark every lesson in this course as completed?')) return;
fetch('/api/course/mark-watched', { method: 'POST' })
.then(r => r.json())
.then(data => {
if (data.success) {
location.reload();
} else {
alert('Error: ' + (data.error || 'Unknown error'));
}
});
}
document.addEventListener('DOMContentLoaded', loadLibrary);
</script>
<script src="/static/theme.js"></script>
</body>
</html>