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use std::io;
use std::path::PathBuf;
use std::process;
use std::time::Duration;
use crossterm::event::{self, Event, KeyCode, KeyEventKind};
use crossterm::terminal::{self, EnterAlternateScreen, LeaveAlternateScreen};
use crossterm::{cursor, execute};
use ratatui::Terminal;
use ratatui::backend::CrosstermBackend;
use super::actions::{self, ListAction};
use super::fuzzy::{FuzzyMatch, FuzzyMatcher};
use super::view;
use prj_core::clean;
use prj_core::config::Config;
use prj_core::project::{Project, ProjectDatabase};
use prj_core::stats::{self, ProjectStats};
pub struct PickerState {
pub query: String,
pub filtered: Vec<FuzzyMatch>,
pub selected: usize,
}
pub enum ListMode {
Browsing,
ActionMenu {
menu_selected: usize,
},
ViewingStats {
stats: ProjectStats,
},
Confirming {
action: &'static str,
on_confirm: PendingAction,
},
CleanResult {
message: String,
},
}
pub enum PendingAction {
Remove,
CleanArtifacts,
}
pub struct ListState {
pub selected: usize,
pub git_statuses: Vec<Option<stats::GitStatus>>,
pub mode: ListMode,
pub message: Option<String>,
}
/// Run the fuzzy picker TUI on stderr. Returns the selected project path or None.
pub fn run_picker(projects: &[Project]) -> color_eyre::Result<Option<PathBuf>> {
let mut stderr = io::stderr();
execute!(stderr, EnterAlternateScreen, cursor::Hide)?;
terminal::enable_raw_mode()?;
let backend = CrosstermBackend::new(io::stderr());
let mut terminal = Terminal::new(backend)?;
let names: Vec<String> = projects.iter().map(|p| p.name.clone()).collect();
let mut matcher = FuzzyMatcher::new();
let mut state = PickerState {
query: String::new(),
filtered: matcher.filter("", &names),
selected: 0,
};
let result = loop {
terminal.draw(|f| view::render_picker(f, &state, projects))?;
if event::poll(Duration::from_millis(50))?
&& let Event::Key(key) = event::read()?
{
if key.kind != KeyEventKind::Press {
continue;
}
match key.code {
KeyCode::Esc => break None,
KeyCode::Enter => {
if let Some(fm) = state.filtered.get(state.selected) {
break Some(projects[fm.index].path.clone());
}
break None;
}
KeyCode::Up => {
if state.selected > 0 {
state.selected -= 1;
}
}
KeyCode::Down => {
if state.selected + 1 < state.filtered.len() {
state.selected += 1;
}
}
KeyCode::Backspace => {
state.query.pop();
state.filtered = matcher.filter(&state.query, &names);
state.selected = 0;
}
KeyCode::Char(c) => {
state.query.push(c);
state.filtered = matcher.filter(&state.query, &names);
state.selected = 0;
}
_ => {}
}
}
};
terminal::disable_raw_mode()?;
execute!(io::stderr(), LeaveAlternateScreen, cursor::Show)?;
Ok(result)
}
/// Run the interactive list TUI on stderr.
/// Returns Some(path) if the user chose "cd to project".
pub fn run_list(
projects: &mut Vec<Project>,
config: &Config,
) -> color_eyre::Result<Option<PathBuf>> {
if projects.is_empty() {
eprintln!("No projects registered. Use `prj add` or `prj scan` to add projects.");
return Ok(None);
}
let mut stderr = io::stderr();
execute!(stderr, EnterAlternateScreen, cursor::Hide)?;
terminal::enable_raw_mode()?;
let backend = CrosstermBackend::new(io::stderr());
let mut terminal = Terminal::new(backend)?;
let git_statuses: Vec<Option<stats::GitStatus>> = projects
.iter()
.map(|p| stats::collect_git_status(&p.path))
.collect();
let mut state = ListState {
selected: 0,
git_statuses,
mode: ListMode::Browsing,
message: None,
};
let result = loop {
terminal.draw(|f| view::render_list(f, &state, projects))?;
if event::poll(Duration::from_millis(50))?
&& let Event::Key(key) = event::read()?
{
if key.kind != KeyEventKind::Press {
continue;
}
match &state.mode {
ListMode::Browsing => match key.code {
KeyCode::Char('q') | KeyCode::Esc => break None,
KeyCode::Up | KeyCode::Char('k') => {
if state.selected > 0 {
state.selected -= 1;
}
}
KeyCode::Down | KeyCode::Char('j') => {
if state.selected + 1 < projects.len() {
state.selected += 1;
}
}
KeyCode::Enter => {
if !projects.is_empty() {
state.mode = ListMode::ActionMenu { menu_selected: 0 };
}
}
_ => {}
},
ListMode::ActionMenu { menu_selected } => {
let menu_selected = *menu_selected;
let items = actions::menu_items(&projects[state.selected]);
match key.code {
KeyCode::Esc => {
state.mode = ListMode::Browsing;
}
KeyCode::Up | KeyCode::Char('k') => {
if menu_selected > 0 {
state.mode = ListMode::ActionMenu {
menu_selected: menu_selected - 1,
};
}
}
KeyCode::Down | KeyCode::Char('j') => {
if menu_selected + 1 < items.len() {
state.mode = ListMode::ActionMenu {
menu_selected: menu_selected + 1,
};
}
}
KeyCode::Enter => {
if let Some(item) = items.get(menu_selected) {
match item.action {
ListAction::ViewStats => {
let project = &projects[state.selected];
let ps = stats::collect_project_stats(project);
state.mode = ListMode::ViewingStats { stats: ps };
}
ListAction::CleanArtifacts => {
state.mode = ListMode::Confirming {
action: "Clean artifacts",
on_confirm: PendingAction::CleanArtifacts,
};
}
ListAction::OpenEditor => {
let path = projects[state.selected].path.clone();
// Leave alternate screen, run editor, re-enter
terminal::disable_raw_mode()?;
execute!(io::stderr(), LeaveAlternateScreen, cursor::Show)?;
let editor = std::env::var("EDITOR")
.unwrap_or_else(|_| "vi".to_string());
if let Err(e) =
process::Command::new(&editor).arg(&path).status()
{
state.message =
Some(format!("Failed to launch editor: {e}"));
}
execute!(io::stderr(), EnterAlternateScreen, cursor::Hide)?;
terminal::enable_raw_mode()?;
state.mode = ListMode::Browsing;
}
ListAction::OpenExplorer => {
let path = projects[state.selected].path.clone();
let result = {
#[cfg(target_os = "macos")]
{
process::Command::new("open").arg(&path).spawn()
}
#[cfg(target_os = "linux")]
{
process::Command::new("xdg-open").arg(&path).spawn()
}
#[cfg(target_os = "windows")]
{
process::Command::new("explorer").arg(&path).spawn()
}
};
state.mode = ListMode::Browsing;
state.message = Some(match result {
Ok(_) => "Opened in file manager".to_string(),
Err(e) => {
format!("Failed to open file manager: {e}")
}
});
}
ListAction::CdToProject => {
let path = projects[state.selected].path.clone();
break Some(path);
}
ListAction::Remove => {
state.mode = ListMode::Confirming {
action: "Remove project",
on_confirm: PendingAction::Remove,
};
}
}
}
}
_ => {}
}
}
ListMode::ViewingStats { .. } => match key.code {
KeyCode::Esc | KeyCode::Char('q') | KeyCode::Enter => {
state.mode = ListMode::Browsing;
}
_ => {}
},
ListMode::Confirming { on_confirm, .. } => {
match key.code {
KeyCode::Char('y') | KeyCode::Char('Y') => {
match on_confirm {
PendingAction::Remove => {
let name = projects[state.selected].name.clone();
projects.remove(state.selected);
// Save database
let db = ProjectDatabase {
projects: projects.clone(),
};
let _ = db.save(config);
// Refresh git statuses
state.git_statuses = projects
.iter()
.map(|p| stats::collect_git_status(&p.path))
.collect();
if state.selected >= projects.len() && !projects.is_empty() {
state.selected = projects.len() - 1;
}
state.message = Some(format!("Removed: {name}"));
state.mode = ListMode::Browsing;
if projects.is_empty() {
break None;
}
}
PendingAction::CleanArtifacts => {
let project = &projects[state.selected];
match clean::execute_clean(
&project.path,
&project.artifact_dirs,
) {
Ok(bytes) => {
let msg = format!(
"Cleaned {}: freed {}",
project.name,
bytesize::ByteSize(bytes)
);
state.mode = ListMode::CleanResult { message: msg };
}
Err(e) => {
state.mode = ListMode::CleanResult {
message: format!("Error: {e}"),
};
}
}
}
}
}
KeyCode::Char('n') | KeyCode::Char('N') | KeyCode::Esc => {
state.mode = ListMode::Browsing;
}
_ => {}
}
}
ListMode::CleanResult { .. } => match key.code {
KeyCode::Esc | KeyCode::Enter => {
state.mode = ListMode::Browsing;
}
_ => {}
},
}
}
};
terminal::disable_raw_mode()?;
execute!(io::stderr(), LeaveAlternateScreen, cursor::Show)?;
Ok(result)
}