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use tokio::sync::mpsc;
use crate::agent::r#loop::AgentEvent;
use crate::app::App;
use crate::app::utils::{recommend_collab_mode, should_suggest_mode};
use crate::tui::event::{self, KeyAction};
use crate::tui::state::{ChatMessage, MessageRole};
use super::LoopControl;
impl App {
/// Handle keyboard input when no popup is open.
///
/// Returns [`LoopControl`] to tell the caller whether to `continue`,
/// `break`, or fall through to normal post-event processing.
pub(super) fn handle_normal_key(
&mut self,
key: crossterm::event::KeyEvent,
event_tx: &mpsc::UnboundedSender<AgentEvent>,
) -> LoopControl {
match event::interpret_key(key) {
KeyAction::Quit => {
// -- Case 1: input has content -> clear it --
if !self.state.input.is_empty() && !self.state.agent_busy {
self.state.input.clear();
self.state.cursor = 0;
self.esc_pending = false;
self.esc_pending_at = None;
self.state.status_msg.clear();
return LoopControl::Continue;
}
let now = std::time::Instant::now();
// -- Case 2: agent busy -> cancel first, exit on second --
if self.state.agent_busy {
if self.esc_pending {
let elapsed = self
.esc_pending_at
.map(|t| now.duration_since(t).as_secs())
.unwrap_or(u64::MAX);
if elapsed <= 3 {
self.state.should_quit = true;
return LoopControl::Break;
}
}
// First press -- cancel agent + show exit hint
if let Some(ref token) = self.cancel_token {
token.cancel();
self.was_cancelled = true;
}
self.esc_pending = true;
self.esc_pending_at = Some(now);
self.state.status_msg =
"⏹ Stopping... Press Ctrl+C again to quit.".to_string();
return LoopControl::Continue;
}
// -- Case 3: idle -> double press to quit --
if self.esc_pending {
let elapsed = self
.esc_pending_at
.map(|t| now.duration_since(t).as_secs())
.unwrap_or(u64::MAX);
if elapsed <= 3 {
self.state.should_quit = true;
return LoopControl::Break;
}
}
self.esc_pending = true;
self.esc_pending_at = Some(now);
self.state.status_msg = "Press Ctrl+C again to quit.".to_string();
}
KeyAction::Char(c) => {
// Shell mode: typing '!' on an empty prompt enters shell mode
// instead of inserting the character.
if c == '!'
&& self.state.input.is_empty()
&& !self.state.agent_busy
&& !self.state.shell_mode
{
self.state.shell_mode = true;
return LoopControl::Continue;
}
self.state.paste_buffer = None; // invalidate abbreviated paste
self.state.insert_char(c);
self.history_index = None;
self.update_mention_ac();
self.update_command_ac();
}
KeyAction::Backspace => {
// Shell mode: backspace on empty input cancels shell mode.
if self.state.shell_mode && self.state.input.is_empty() {
self.state.shell_mode = false;
return LoopControl::Continue;
}
self.state.paste_buffer = None;
self.state.backspace();
self.update_mention_ac();
self.update_command_ac();
}
KeyAction::Submit => {
if self.state.input.is_empty()
&& self.state.mention_ac.is_none()
&& self.state.command_ac.is_none()
{
// Empty input + Enter -> scroll to bottom.
self.scroll_target = 0;
self.state.scroll_offset = 0;
} else if self.state.mention_ac.is_some() {
self.mention_ac_complete();
} else if self.state.command_ac.is_some() {
self.command_ac_complete();
// After autocomplete, immediately submit if non-disruptive
// (otherwise the user would need a redundant second Enter)
if !self.state.input.is_empty()
&& (crate::commands::is_non_disruptive_command(&self.state.input)
|| !self.state.agent_busy)
{
self.submit_message(event_tx.clone());
}
} else if !self.state.input.is_empty() {
// When attached to a worker, send input as a hint instruction
if let crate::tui::state::ViewMode::WorkerAttached { ref agent_id } =
self.state.view_mode
{
let agent_id = agent_id.clone();
let text = self.state.take_input();
// Slash commands still go through normal routing
if text.starts_with('/') {
self.state.input = text;
self.state.cursor = self.state.input.len();
self.submit_message(event_tx.clone());
} else if let Some(ref kb) = self.swarm_knowledge {
let kb = kb.clone();
let id = agent_id.clone();
let hint_text = text.clone();
tokio::spawn(async move {
kb.send_instruction(
&id,
crate::agent::swarm::knowledge::WorkerInstruction::Hint {
text: hint_text,
},
)
.await;
});
self.state
.messages
.push(crate::tui::state::ChatMessage::text(
crate::tui::state::MessageRole::System,
format!("[hint → {}] {}", agent_id, text),
));
}
} else if self.state.agent_busy {
// Allow non-disruptive commands even while agent is busy
if crate::commands::is_non_disruptive_command(&self.state.input) {
self.submit_message(event_tx.clone());
} else {
// Queue the message; display it as pending.
// Cap queue size to prevent unbounded memory growth.
const MAX_MESSAGE_QUEUE: usize = 64;
if self.message_queue.len() >= MAX_MESSAGE_QUEUE {
self.state.status_msg =
"⚠ Message queue full — wait for agent to finish.".to_string();
} else {
let queued = self.state.take_input();
let hint = if queued.trim().starts_with('/') {
format!("{queued} — will apply after agent finishes")
} else {
format!("Queued: {queued}")
};
self.state
.messages
.push(ChatMessage::text(MessageRole::Queued, hint));
self.message_queue.push_back(queued);
}
}
} else {
// In shell mode, prepend '!' so the shell passthrough path is used.
let msg = if self.state.shell_mode {
self.state.shell_mode = false;
format!("!{}", self.state.input.trim())
} else {
self.state.input.trim().to_string()
};
if let Some(stripped) = msg.strip_prefix('!') {
// Shell passthrough: !cmd runs in working directory.
let cmd = stripped.trim().to_string();
self.state
.messages
.push(ChatMessage::text(MessageRole::User, msg.clone()));
self.state.input = String::new();
self.state.cursor = 0;
self.state.agent_busy = true;
self.agent_busy_since = Some(std::time::Instant::now());
self.state.status_msg = format!("Running: {cmd}");
let working_dir = self.working_dir.clone();
let tx = event_tx.clone();
tokio::spawn(async move {
let result = tokio::process::Command::new("sh")
.arg("-c")
.arg(&cmd)
.current_dir(&working_dir)
.output()
.await;
match result {
Ok(out) => {
let _ = tx.send(
crate::agent::r#loop::AgentEvent::ShellOutput {
cmd,
stdout: String::from_utf8_lossy(&out.stdout)
.into_owned(),
stderr: String::from_utf8_lossy(&out.stderr)
.into_owned(),
exit_code: out.status.code().unwrap_or(-1),
},
);
}
Err(e) => {
let _ = tx.send(
crate::agent::r#loop::AgentEvent::ShellOutput {
cmd,
stdout: String::new(),
stderr: e.to_string(),
exit_code: -1,
},
);
}
}
});
} else if self.state.agent_mode == "arbor" {
// Arbor: auto-determine optimal mode per task, no popup.
use crate::agent::swarm::config::CollaborationMode;
let recommended = recommend_collab_mode(&msg);
self.arbor_dispatch_mode = match recommended.index {
0 => Some(CollaborationMode::Fork),
1 => Some(CollaborationMode::Hive),
2 => Some(CollaborationMode::Flock),
_ => None,
};
self.submit_message(event_tx.clone());
} else if should_suggest_mode(&msg, &self.config)
&& self.session_collab_mode.is_none()
&& self.config.collaboration.mode
== crate::agent::swarm::config::CollaborationMode::None
{
// Show mode-selection popup for complex tasks
let recommended = recommend_collab_mode(&msg);
self.pending_mode_approval_msg = Some(self.state.take_input());
self.state.popup = Some(crate::tui::state::PopupState {
title: " Select Execution Mode ".to_string(),
content: String::new(),
scroll: 0,
kind: crate::tui::state::PopupKind::ModeApproval {
mode: String::new(),
description: recommended.reason,
selected: recommended.index,
},
saved_theme: None,
select_prefix: None,
search: String::new(),
});
} else {
self.submit_message(event_tx.clone());
}
}
}
}
KeyAction::ScrollUp => {
if let Some(detail) = self.state.attached_worker_detail_mut() {
detail.auto_scroll = false;
detail.scroll_offset = detail.scroll_offset.saturating_add(3);
} else {
self.scroll_target = self.scroll_target.saturating_add(3);
}
}
KeyAction::ScrollDown => {
if let Some(detail) = self.state.attached_worker_detail_mut() {
if detail.scroll_offset <= 3 {
detail.scroll_offset = 0;
detail.auto_scroll = true;
} else {
detail.scroll_offset = detail.scroll_offset.saturating_sub(3);
}
} else {
self.scroll_target = self.scroll_target.saturating_sub(3);
}
}
KeyAction::HistoryUp => {
if self.state.mention_ac.is_some() {
self.mention_ac_prev();
} else if self.state.command_ac.is_some() {
self.command_ac_prev();
} else if self.state.agent_busy
&& self.state.input.is_empty()
&& !self.message_queue.is_empty()
{
// Cancel last queued message and restore to input
if let Some(msg) = self.message_queue.pop_back() {
// Remove the corresponding "Queued:" system message
if let Some(pos) = self
.state
.messages
.iter()
.rposition(|m| m.role == MessageRole::Queued)
{
self.state.messages.remove(pos);
}
self.state.input = msg;
self.state.cursor = self.state.input.len();
}
} else if !self.state.agent_busy {
if self.state.cursor_has_line_above() {
self.state.cursor_line_up();
} else {
self.navigate_history_up();
}
}
}
KeyAction::HistoryDown => {
if self.state.mention_ac.is_some() {
self.mention_ac_next();
} else if self.state.command_ac.is_some() {
self.command_ac_next();
} else if !self.state.agent_busy {
if self.state.cursor_has_line_below() {
self.state.cursor_line_down();
} else {
self.navigate_history_down();
}
}
}
KeyAction::NewLine => {
self.state.insert_char('\n');
self.history_index = None;
}
KeyAction::NextAgent => {
if self.state.mention_ac.is_some() {
self.mention_ac_next();
} else if self.state.command_ac.is_some() {
// Tab on command AC: complete + expand subcommand hint
self.command_ac_expand();
} else if !self.state.agent_busy {
let now = std::time::Instant::now();
let is_double_tap = self
.last_tab_at
.map(|t| now.duration_since(t).as_millis() < 250)
.unwrap_or(false);
if is_double_tap {
// Double-tap Tab: show agent selection popup
self.last_tab_at = None;
let items: Vec<String> = self
.config
.agents
.iter()
.map(|a| {
let provider_model = match &a.provider {
Some(p) => format!("{} / {}", p, a.model),
None => a.model.clone(),
};
format!("{} ({})", a.name, provider_model)
})
.collect();
if !items.is_empty() {
use crate::tui::state::{PopupKind, PopupState};
self.state.popup = Some(PopupState {
title: "Agents".to_string(),
content: String::new(),
scroll: 0,
kind: PopupKind::Select {
items,
selected: self.current_agent_index,
},
saved_theme: None,
select_prefix: Some("AGENT_SWITCH:".to_string()),
search: String::new(),
});
}
} else {
self.last_tab_at = Some(now);
self.switch_agent(1);
}
}
}
KeyAction::PrevAgent => {
if self.state.mention_ac.is_some() {
self.mention_ac_prev();
} else if self.state.command_ac.is_some() {
self.command_ac_prev();
} else if !self.state.agent_busy {
self.switch_agent(-1);
}
}
KeyAction::CycleApproveMode => {
let new_mode = self.approve_mode.cycle();
self.state.approve_mode = new_mode.to_string();
self.state.status_msg = format!("Approve mode: {new_mode}");
}
KeyAction::EscapePressed => {
// Detach from worker view first if attached
if matches!(
self.state.view_mode,
crate::tui::state::ViewMode::WorkerAttached { .. }
) {
self.state.detach_worker();
// Dismiss autocomplete popup first if open
} else if self.state.mention_ac.is_some() {
self.state.mention_ac = None;
} else if self.state.command_ac.is_some() {
self.state.command_ac = None;
} else if self.state.agent_busy {
let now = std::time::Instant::now();
if self.esc_pending {
let elapsed = self
.esc_pending_at
.map(|t| now.duration_since(t).as_secs())
.unwrap_or(u64::MAX);
if elapsed <= 3 {
// Second Esc within 3 seconds -- cancel
if let Some(ref token) = self.cancel_token {
token.cancel();
self.was_cancelled = true;
}
self.esc_pending = false;
self.esc_pending_at = None;
self.state.status_msg = "⏹ Requesting stop...".to_string();
} else {
// Timeout expired -- treat as first Esc
self.esc_pending = true;
self.esc_pending_at = Some(now);
self.state.status_msg = "Press Esc again to stop.".to_string();
}
} else {
// First Esc
self.esc_pending = true;
self.esc_pending_at = Some(now);
self.state.status_msg =
"Press Esc once more to cancel the task".to_string();
}
}
}
// -- Cursor movement --
KeyAction::CursorLeft => {
self.state.cursor_left();
}
KeyAction::CursorRight => {
self.state.cursor_right();
}
KeyAction::CursorWordLeft => {
self.state.cursor_word_left();
}
KeyAction::CursorWordRight => {
self.state.cursor_word_right();
}
KeyAction::CursorLineStart => {
self.state.cursor_line_start();
}
KeyAction::CursorLineEnd => {
self.state.cursor_line_end();
}
// -- Deletion --
KeyAction::Delete => {
self.state.delete_forward();
self.update_mention_ac();
self.update_command_ac();
}
KeyAction::DeleteWordBack => {
self.state.delete_word_back();
self.update_mention_ac();
self.update_command_ac();
}
KeyAction::DeleteToLineStart => {
self.state.delete_to_line_start();
// Ctrl+U clears the whole line, so pending images are no longer relevant.
if self.state.input.is_empty() {
self.state.clear_pending_images();
}
self.update_mention_ac();
self.update_command_ac();
}
KeyAction::DeleteToLineEnd => {
self.state.delete_to_line_end();
self.update_mention_ac();
self.update_command_ac();
}
KeyAction::None => {}
}
LoopControl::Proceed
}
}