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use crate::{
app::{App, AppResult, FocusedBlock, Mode},
event::Event,
};
use crate::llm::LLM;
use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
use std::sync::mpsc::Sender;
use std::{collections::HashMap, thread};
use crate::notification::{Notification, NotificationLevel};
use std::sync::Arc;
pub fn handle_key_events(
key_event: KeyEvent,
app: &mut App,
llm: Arc<impl LLM + 'static>,
sender: Sender<Event>,
) -> AppResult<()> {
match app.mode {
Mode::Normal => match key_event.code {
// Change mode to Insert
KeyCode::Char('i') => {
app.mode = Mode::Insert;
app.focused_block = FocusedBlock::Prompt;
}
// Quit the app
KeyCode::Char('q') => {
app.running = false;
}
KeyCode::Enter => {
let user_input: String = app.prompt.drain(3..).collect();
let user_input = user_input.trim();
if user_input.is_empty() {
return Ok(());
}
app.chat.push(format!(" : {}\n", user_input));
let conv = HashMap::from([
("role".into(), "user".into()),
("content".into(), user_input.into()),
]);
app.llm_messages.push(conv);
let llm_messages = app.llm_messages.clone();
thread::spawn(move || {
let response = llm.ask(llm_messages.to_vec());
sender
.send(Event::LLMAnswer(match response {
Ok(answer) => answer,
Err(e) => e.to_string(),
}))
.unwrap();
});
app.spinner.active = true;
app.chat.push("🤖: Waiting ..".to_string());
}
// scroll down
KeyCode::Char('j') | KeyCode::Down => match app.focused_block {
FocusedBlock::History => {
if app.history_thread_index < app.history.len() - 1 {
app.history_thread_index += 1;
}
}
_ => app.scroll += 1,
},
// scroll up
KeyCode::Char('k') | KeyCode::Up => match app.focused_block {
FocusedBlock::History => {
if app.history_thread_index > 0 {
app.history_thread_index -= 1;
}
}
_ => app.scroll -= 1,
},
// Clear the prompt
KeyCode::Char('d') => {
if app.previous_key == KeyCode::Char('d') {
app.prompt = String::from(">_ ");
}
}
// New chat
KeyCode::Char(c) if c == app.config.key_bindings.new_chat => {
app.prompt = String::from(">_ ");
app.history.push(app.chat.clone());
app.chat = Vec::new();
app.llm_messages = Vec::new();
app.scroll = 0;
}
// Save chat
KeyCode::Char(c) if c == app.config.key_bindings.save_chat => match app.focused_block {
FocusedBlock::History | FocusedBlock::Preview => {
if !app.history.is_empty() {
let chat: String = app.history[app.history_thread_index]
.iter()
.map(|m| m.to_string())
.collect();
match std::fs::write(app.config.archive_file_name.clone(), chat) {
Ok(_) => {
let notif = Notification::new(
format!(
"**Info**\nChat saved to `{}` file",
app.config.archive_file_name
),
NotificationLevel::Info,
);
sender.send(Event::Notification(notif)).unwrap();
}
Err(e) => {
let notif = Notification::new(
format!("**Error**\n{}", e),
NotificationLevel::Error,
);
sender.send(Event::Notification(notif)).unwrap();
}
}
}
}
FocusedBlock::Chat | FocusedBlock::Prompt => {
let chat: String = app.chat.iter().map(|m| m.to_string()).collect();
match std::fs::write(app.config.archive_file_name.clone(), chat) {
Ok(_) => {
let notif = Notification::new(
format!(
"**Info**\nChat saved to `{}` file",
app.config.archive_file_name
),
NotificationLevel::Info,
);
sender.send(Event::Notification(notif)).unwrap();
}
Err(e) => {
let notif = Notification::new(
format!("**Error**\n{}", e),
NotificationLevel::Error,
);
sender.send(Event::Notification(notif)).unwrap();
}
}
}
},
// Switch the focus
KeyCode::Tab => {
if app.show_history_popup {
match app.focused_block {
FocusedBlock::Preview => app.focused_block = FocusedBlock::History,
FocusedBlock::History => app.focused_block = FocusedBlock::Preview,
_ => (),
}
} else {
match app.focused_block {
FocusedBlock::Chat => app.focused_block = FocusedBlock::Prompt,
FocusedBlock::Prompt => app.focused_block = FocusedBlock::Chat,
_ => (),
}
app.scroll = 0
}
}
// kill the app
KeyCode::Char('c') | KeyCode::Char('C') => {
if key_event.modifiers == KeyModifiers::CONTROL {
app.running = false;
}
}
// Show help
KeyCode::Char(c) if c == app.config.key_bindings.show_help => {
app.show_help_popup = true;
}
// Show history
KeyCode::Char(c) if c == app.config.key_bindings.show_history => {
app.show_history_popup = true;
app.focused_block = FocusedBlock::History;
}
// Discard help & history popups
KeyCode::Esc => {
app.show_help_popup = false;
if app.show_history_popup {
app.show_history_popup = false;
app.focused_block = FocusedBlock::Prompt;
app.scroll = 0;
}
}
_ => {}
},
Mode::Insert => match key_event.code {
// New line
KeyCode::Enter => app.prompt.push('\n'),
KeyCode::Char(c) => {
app.prompt.push(c);
}
// Remove char from the prompt
KeyCode::Backspace => {
if app.prompt.len() > 3 {
app.prompt.pop();
}
}
//Switch to Normal mode
KeyCode::Esc => {
app.mode = Mode::Normal;
}
_ => {}
},
}
app.previous_key = key_event.code;
Ok(())
}