feat: settings popup and uploads in the transfers pane

Press 'o' for a settings popup: edit the download folder, add/remove
share paths (applied live via a rescan and persisted to config.toml),
and force a re-index with 'r' for files changed on disk. The state
machine is unit-tested; feedback shows the shared file/folder counts.

The downloads pane is now Downloads/Uploads: uploads being served are
listed after downloads with an up-arrow marker, live progress, and
status; 'x' cancels an in-progress upload. Client::shared_counts exposes
the index size for the status line.

soulseek-rs/src/ui/main_tui/downloads.rs

@@ -189,6 +189,32 @@ impl MainTui {
         self.state.results_selected_indices.clear();
     }
 
+    /// Cancel the selected transfer when it is an upload row (uploads are
+    /// listed after the downloads in the shared pane).
+    pub(super) fn cancel_selected_upload(&self) {
+        let Some(index) = self.state.downloads_table_state.selected() else {
+            return;
+        };
+        let Some(upload) = self
+            .state
+            .uploads
+            .get(index.wrapping_sub(self.state.downloads.len()))
+        else {
+            return;
+        };
+        if upload.status == soulseek_rs::types::UploadStatus::InProgress
+            && !self
+                .client
+                .cancel_upload(&upload.username, &upload.filename)
+        {
+            soulseek_rs::warn!(
+                "No in-progress upload of {} to {} to cancel",
+                upload.filename,
+                upload.username
+            );
+        }
+    }
+
     pub(super) fn update_downloads(&mut self) {
         if let Some(ref receiver) = self.state.downloads_receiver_channel {
             while let Ok((download, download_receiver)) = receiver.try_recv() {

soulseek-rs/src/ui/main_tui/input.rs

@@ -29,6 +29,11 @@ impl MainTui {
             return self.handle_rooms_input(key);
         }
 
+        // Settings popup takes over navigation while open.
+        if self.state.settings.is_some() {
+            return self.handle_settings_input(key);
+        }
+
         // Filter mode in Results pane
         if self.state.results_is_filtering
             && self.state.focused_pane == FocusedPane::Results
@@ -81,6 +86,10 @@ impl MainTui {
                 self.start_rooms();
                 return;
             }
+            KeyCode::Char('o') => {
+                self.open_settings();
+                return;
+            }
             KeyCode::Char('b') => {
                 // From a highlighted search result, browse its owner directly;
                 // otherwise prompt for a username.
@@ -361,27 +370,24 @@ impl MainTui {
     }
 
     fn handle_downloads_input(&mut self, key: KeyEvent) {
+        // The pane lists downloads first, then uploads; navigation spans both.
+        let rows = self.state.downloads.len() + self.state.uploads.len();
         match key.code {
-            KeyCode::Up | KeyCode::Char('k')
-                if !self.state.downloads.is_empty() =>
-            {
+            KeyCode::Up | KeyCode::Char('k') if rows > 0 => {
                 let current =
                     self.state.downloads_table_state.selected().unwrap_or(0);
-                let new = if current == 0 {
-                    self.state.downloads.len() - 1
-                } else {
-                    current - 1
-                };
+                let new = if current == 0 { rows - 1 } else { current - 1 };
                 self.state.downloads_table_state.select(Some(new));
             }
-            KeyCode::Down | KeyCode::Char('j')
-                if !self.state.downloads.is_empty() =>
-            {
+            KeyCode::Down | KeyCode::Char('j') if rows > 0 => {
                 let current =
                     self.state.downloads_table_state.selected().unwrap_or(0);
-                let new = (current + 1) % self.state.downloads.len();
+                let new = (current + 1) % rows;
                 self.state.downloads_table_state.select(Some(new));
             }
+            KeyCode::Char('x') => {
+                self.cancel_selected_upload();
+            }
             KeyCode::Char('p') => {
                 self.toggle_selected_download_pause();
             }

soulseek-rs/src/ui/main_tui/mod.rs

@@ -4,6 +4,7 @@ mod input;
 mod render;
 mod rooms;
 mod search;
+mod settings;
 
 use crate::models::AppState;
 use crate::persist::{
@@ -177,6 +178,9 @@ impl MainTui {
             // Poll for chat-room events
             self.poll_room_events();
 
+            // Refresh the uploads we are serving to peers
+            self.state.uploads = self.client.uploads();
+
             self.spinner_state = (self.spinner_state + 1) % 10;
 
             self.save_persisted_state();

soulseek-rs/src/ui/main_tui/render.rs

@@ -134,6 +134,7 @@ impl MainTui {
             frame,
             downloads_chunks[0],
             &self.state.downloads,
+            &self.state.uploads,
             &mut self.state.downloads_table_state,
             self.state.focused_pane == FocusedPane::Downloads,
         );
@@ -170,6 +171,11 @@ impl MainTui {
             );
         }
 
+        // Settings popup overlays everything when open.
+        if self.state.settings.is_some() {
+            self.render_settings_popup(frame);
+        }
+
         // Chat rooms overlay everything when open.
         if self.state.show_rooms {
             let area = centered_rect(85, 80, frame.area());
@@ -183,6 +189,67 @@ impl MainTui {
         }
     }
 
+    fn render_settings_popup(&self, frame: &mut Frame) {
+        use crate::models::SettingsMode;
+        let Some(settings) = self.state.settings.as_ref() else {
+            return;
+        };
+        let area = centered_rect(70, 60, frame.area());
+        frame.render_widget(ratatui::widgets::Clear, area);
+
+        let mut lines: Vec<ratatui::text::Line> = Vec::new();
+        let marker = |selected: bool| if selected { "> " } else { "  " };
+
+        let download_line = if settings.mode == SettingsMode::EditingDownloadDir
+        {
+            format!("> Download folder: {}▏", settings.input)
+        } else {
+            format!(
+                "{}Download folder: {}",
+                marker(settings.selected == 0),
+                settings.download_dir
+            )
+        };
+        lines.push(ratatui::text::Line::from(download_line));
+        lines.push(ratatui::text::Line::from(""));
+        lines.push(ratatui::text::Line::from(format!(
+            "Shared folders ({}):",
+            settings.share_dirs.len()
+        )));
+        for (i, dir) in settings.share_dirs.iter().enumerate() {
+            lines.push(ratatui::text::Line::from(format!(
+                "{}{}",
+                marker(settings.selected == i + 1),
+                dir
+            )));
+        }
+        if settings.share_dirs.is_empty() {
+            lines.push(ratatui::text::Line::from(
+                "  (nothing shared — press 'a' to add a folder)",
+            ));
+        }
+        if settings.mode == SettingsMode::AddingShare {
+            lines.push(ratatui::text::Line::from(format!(
+                "  Add share: {}▏",
+                settings.input
+            )));
+        }
+        if let Some(status) = &settings.status {
+            lines.push(ratatui::text::Line::from(""));
+            lines.push(ratatui::text::Line::from(status.clone()));
+        }
+
+        let block = ratatui::widgets::Block::default()
+            .borders(ratatui::widgets::Borders::ALL)
+            .title(" Settings ");
+        frame.render_widget(
+            ratatui::widgets::Paragraph::new(lines)
+                .block(block)
+                .wrap(ratatui::widgets::Wrap { trim: false }),
+            area,
+        );
+    }
+
     fn render_messages_popup(&self, frame: &mut Frame) {
         let area = centered_rect(70, 60, frame.area());
 
@@ -273,7 +340,16 @@ impl MainTui {
             "chat".to_string()
         };
 
-        let shortcuts = if self.state.show_rooms {
+        let shortcuts = if self.state.settings.is_some() {
+            vec![
+                ("↑↓", "move"),
+                ("Enter/e", "edit download dir"),
+                ("a", "add share"),
+                ("d", "remove share"),
+                ("r", "re-index"),
+                ("Esc", "close"),
+            ]
+        } else if self.state.show_rooms {
             self.rooms_shortcuts()
         } else if self.state.show_browse {
             vec![

soulseek-rs/src/ui/main_tui/settings.rs

@@ -0,0 +1,93 @@
+//! Settings popup behavior: open, key handling, and applying changes
+//! (persist to config.toml + live share rescan on the client).
+
+use super::MainTui;
+use crate::models::{SettingsAction, SettingsState};
+use ratatui::crossterm::event::KeyEvent;
+
+impl MainTui {
+    pub(super) fn open_settings(&mut self) {
+        self.state.settings = Some(SettingsState::new(
+            self.download_dir.clone(),
+            self.client.shared_directories(),
+        ));
+    }
+
+    pub(super) fn handle_settings_input(&mut self, key: KeyEvent) {
+        let Some(settings) = self.state.settings.as_mut() else {
+            return;
+        };
+        match settings.handle_key(key) {
+            SettingsAction::None => {}
+            SettingsAction::Close => self.state.settings = None,
+            SettingsAction::Apply => self.apply_settings(),
+            SettingsAction::Reindex => self.reindex_shares(),
+        }
+    }
+
+    /// Persist the edited settings and apply the share set live.
+    fn apply_settings(&mut self) {
+        let Some(settings) = self.state.settings.as_ref() else {
+            return;
+        };
+        let download_dir = settings.download_dir.clone();
+        let share_dirs = settings.share_dirs.clone();
+
+        if let Err(e) = std::fs::create_dir_all(&download_dir) {
+            self.set_settings_status(format!(
+                "Cannot create {download_dir}: {e}"
+            ));
+            return;
+        }
+        self.download_dir.clone_from(&download_dir);
+
+        // Validate the share paths (tilde-expand, must exist) and apply.
+        let valid = crate::directories::resolve_shared_directories(&share_dirs);
+        let dropped = share_dirs.len() - valid.len();
+        let mut status = match self.client.set_shared_directories(valid) {
+            Ok(()) if dropped > 0 => {
+                format!("Applied ({dropped} invalid path(s) ignored)")
+            }
+            Ok(()) => format!("Applied · sharing {}", self.share_counts()),
+            Err(e) => format!("Could not apply shares: {e}"),
+        };
+
+        // Persist to config.toml so the change survives a restart.
+        if let Some(path) = crate::persist::paths::config_file() {
+            let result = crate::persist::config::FileConfig::load(&path)
+                .and_then(|mut config| {
+                    config.download_dir = Some(download_dir);
+                    config.shared_dirs = Some(share_dirs);
+                    config.save(&path)
+                });
+            if let Err(e) = result {
+                status = format!("Could not save config: {e}");
+            }
+        }
+        self.set_settings_status(status);
+    }
+
+    fn set_settings_status(&mut self, status: String) {
+        if let Some(settings) = self.state.settings.as_mut() {
+            settings.status = Some(status);
+        }
+    }
+
+    /// Re-scan the current share paths (picks up files changed on disk).
+    fn reindex_shares(&mut self) {
+        let dirs = self.client.shared_directories();
+        let result = self.client.set_shared_directories(dirs);
+        let counts = self.share_counts();
+        if let Some(settings) = self.state.settings.as_mut() {
+            settings.status = Some(match result {
+                Ok(()) => format!("Re-indexed · sharing {counts}"),
+                Err(e) => format!("Re-index failed: {e}"),
+            });
+        }
+    }
+
+    fn share_counts(&self) -> String {
+        let (folders, files) = self.client.shared_counts();
+        format!("{files} files in {folders} folders")
+    }
+}