Offline Mode Feature Complete

src/main.rs

@@ -50,7 +50,8 @@ enum View {
     },
     OfflineLibrary {
         title: String,
-        items: Vec<core::downloads::LocalEntry>,
+        dir: std::path::PathBuf,
+        entries: Vec<OfflineEntry>,
         selected: usize,
     },
     Login,
@@ -733,25 +734,44 @@ fn handle_key(app: &mut App, code: KeyCode) {
                 };
 
                 // Determine what is “selected” depending on view
-                let (item_id, item_name) = match app.current_view() {
+                // - Online library: we have an item_id (and can prefer local by id)
+                // - Offline directory browser: we have a direct local file path
+                let (maybe_item_id, item_name, maybe_path) = match app.current_view() {
                     View::Library { items, selected, .. } if !items.is_empty() => {
-                        (items[*selected].id.clone(), items[*selected].name.clone())
+                        (Some(items[*selected].id.clone()), items[*selected].name.clone(), None)
                     }
-                    View::OfflineLibrary { items, selected, .. } if !items.is_empty() => {
-                        (items[*selected].item_id.clone(), items[*selected].title.clone())
+                    View::OfflineLibrary { entries, selected, .. } if !entries.is_empty() => {
+                        let e = &entries[*selected];
+                        if e.is_dir {
+                            app.status = "Select a file (or Enter to open folder)".into();
+                            return;
+                        }
+                        (None, e.name.clone(), Some(e.path.clone()))
                     }
                     _ => { app.status = "Nothing to play here".into(); return; }
                 };
 
                 app.mpv_now_playing = Some(item_name);
 
-                // If mpv running -> replace, else spawn
-                let url = if let Some(p) = crate::core::downloads::local_media_path_for_item_id(&item_id) {
+                // Decide URL/path:
+                // 1) If OfflineLibrary gave us a file path -> play it directly.
+                // 2) Else (online library): prefer local download by item_id, else stream.
+                let local = maybe_item_id
+                    .as_deref()
+                    .and_then(|id| crate::core::downloads::local_media_path_for_item_id(id));
+
+                if app.offline && maybe_path.is_none() && local.is_none() {
+                    app.status = "Offline: item not downloaded".into();
+                    return;
+                }
+
+                let url = if let Some(p) = maybe_path.or(local) {
                     p.to_string_lossy().to_string()
                 } else {
-                    build_jellyfin_play_url(&cfg, &item_id)
+                    build_jellyfin_play_url(&cfg, maybe_item_id.as_deref().unwrap())
                 };
 
+                // If mpv running -> replace, else spawn
                 if let Some(mpv) = &app.mpv {
                     match mpv_load_url(&cfg, mpv, &url) {
                         Ok(_) => app.status = "mpv: loaded".into(),
@@ -770,6 +790,7 @@ fn handle_key(app: &mut App, code: KeyCode) {
                 }
                 return;
             }
+
             KeyCode::Char('P') => {
                 if matches!(app.current_view(), View::OfflineLibrary { .. }) {
                     app.status = "Offline: autoplay disabled (use 'p')".into();
@@ -1027,18 +1048,25 @@ fn handle_key(app: &mut App, code: KeyCode) {
             // OFFLINE: local-only library
             if app.offline {
                 if cat == "Downloaded" {
-                    let items = crate::core::downloads::scan_local_entries();
+                    let root = match crate::core::paths::app_config_dir() {
+                        Some(p) => p.join("downloads"),
+                        None => {
+                            app.status = "offline: cannot resolve config dir".into();
+                            return;
+                        }
+                    };
+
+                    let entries = offline_list_dir(&root);
 
                     app.view_stack.push(View::OfflineLibrary {
                         title: "Downloaded".into(),
-                        items,
+                        dir: root,
+                        entries,
                         selected: 0,
                     });
                     app.status = "$".into();
                     return;
                 }
-
-                // Everything else offline can remain as-is (Downloads/Settings etc)
             }
 
             let cfg = match &app.config {
@@ -1214,6 +1242,27 @@ fn handle_key(app: &mut App, code: KeyCode) {
             app.status = format!("No drilldown for type: {}", ty);
         }
 
+        View::OfflineLibrary { title, dir: _, entries, selected } => {
+            if entries.is_empty() { return; }
+            let e = &entries[selected];
+
+            if e.is_dir {
+                let new_dir = e.path.clone();
+                let new_entries = offline_list_dir(&new_dir);
+
+                app.view_stack.push(View::OfflineLibrary {
+                    title: format!("{title} > {}", e.name),
+                    dir: new_dir,
+                    entries: new_entries,
+                    selected: 0,
+                });
+                app.status = "$".into();
+            } else {
+                app.status = "Press 'p' to play local file".into();
+            }
+            return;
+        }
+
         _ => {}
     }
 }
@@ -1255,9 +1304,9 @@ fn handle_key(app: &mut App, code: KeyCode) {
 
                     maybe_prefetch(app);
                 }
-                View::OfflineLibrary { items, selected, .. } => {
-                    if items.is_empty() { return; }
-                    if *selected == 0 { *selected = items.len() - 1; }
+                View::OfflineLibrary { entries, selected, .. } => {
+                    if entries.is_empty() { return; }
+                    if *selected == 0 { *selected = entries.len() - 1; }
                     else { *selected -= 1; }
                 }
                 _ => {}
@@ -1295,11 +1344,10 @@ fn handle_key(app: &mut App, code: KeyCode) {
 
                     maybe_prefetch(app);
                 }
-                View::OfflineLibrary { items, selected, .. } => {
-                    if items.is_empty() { return; }
-                    *selected = (*selected + 1) % items.len();
+                View::OfflineLibrary { entries, selected, .. } => {
+                    if entries.is_empty() { return; }
+                    *selected = (*selected + 1) % entries.len();
                 }
-
                 _ => {}
             }
         }
@@ -1611,8 +1659,8 @@ fn ui(frame: &mut Frame, app: &App) {
     // Main
 
     match app.current_view() {
-        View::OfflineLibrary { title, items, selected } => {
-            render_offline_library(frame, title, items, *selected, panes.left_main, panes.right_main);
+        View::OfflineLibrary { title, dir: _, entries, selected } => {
+            render_offline_library_dir(frame, title, entries, *selected, panes.left_main, panes.right_main);
         }
         View::Categories => {
             render_categories(frame, app, panes.left_main, panes.right_main);
@@ -3143,3 +3191,102 @@ fn categories_for_mode(offline: bool) -> Vec<String> {
         ]
     }
 }
+
+#[derive(Clone, Debug)]
+struct OfflineEntry {
+    name: String,
+    path: std::path::PathBuf,
+    is_dir: bool,
+}
+
+fn offline_list_dir(dir: &std::path::Path) -> Vec<OfflineEntry> {
+    let mut out: Vec<OfflineEntry> = Vec::new();
+
+    let rd = match std::fs::read_dir(dir) {
+        Ok(r) => r,
+        Err(_) => return out,
+    };
+
+    for ent in rd.flatten() {
+        let path = ent.path();
+        let name = match path.file_name().and_then(|s| s.to_str()) {
+            Some(s) => s.to_string(),
+            None => continue,
+        };
+
+        // Hide download marker files + aria2 artifacts
+        if name.ends_with(".cj-jftui.json") || name.ends_with(".aria2") || name.ends_with(".part") {
+            continue;
+        }
+
+        let is_dir = path.is_dir();
+        out.push(OfflineEntry { name, path, is_dir });
+    }
+
+    // dirs first, then files; alpha within groups
+    out.sort_by(|a, b| {
+        match (a.is_dir, b.is_dir) {
+            (true, false) => std::cmp::Ordering::Less,
+            (false, true) => std::cmp::Ordering::Greater,
+            _ => a.name.to_lowercase().cmp(&b.name.to_lowercase()),
+        }
+    });
+
+    out
+}
+
+fn render_offline_library_dir(
+    frame: &mut Frame,
+    title: &str,
+    entries: &[OfflineEntry],
+    selected: usize,
+    left: Rect,
+    right: Rect,
+) {
+    let viewport = left.height.saturating_sub(2) as usize;
+
+    let len = entries.len();
+    let selected = selected.min(len.saturating_sub(1));
+
+    let (start, end) = compute_window(len, selected, viewport);
+
+    let list_items: Vec<ListItem> = entries[start..end]
+        .iter()
+        .map(|e| {
+            if e.is_dir {
+                ListItem::new(format!("📁 {}", e.name))
+            } else {
+                ListItem::new(format!("💾 {}", e.name))
+            }
+        })
+        .collect();
+
+    let list = List::new(list_items)
+        .block(Block::bordered().title(title).merge_borders(MergeStrategy::Exact))
+        .highlight_symbol("> ")
+        .highlight_style(Style::default().add_modifier(Modifier::REVERSED));
+
+    let mut state = ListState::default();
+    state.select(if len > 0 { Some(selected - start) } else { None });
+
+    frame.render_stateful_widget(list, left, &mut state);
+
+    let detail = if len > 0 {
+        let e = &entries[selected];
+        format!(
+            "Name: {}\nType: {}\nPath:\n{}",
+            e.name,
+            if e.is_dir { "dir" } else { "file" },
+            e.path.display()
+        )
+    } else {
+        "Empty directory".to_string()
+    };
+
+    frame.render_widget(
+        Paragraph::new(detail)
+            .wrap(Wrap { trim: false })
+            .block(Block::bordered().title("Details").merge_borders(MergeStrategy::Exact)),
+        right,
+    );
+}