feat(core): Write selected project to file instead of stdout

src/main.rs

@@ -3,6 +3,7 @@ mod tui;
 
 
 use std::fs;
+use std::io::Write;
 use std::path::PathBuf;
 
 use anyhow::{ensure, Result};
@@ -38,7 +39,7 @@ fn main() -> Result<()> {
 
     let result = match &args.cmd {
         Some(cmd) => handle_subcommands(projects, cmd),
-        None => tui::run(projects),
+        None => run_tui(projects),
     };
 
     if let Err(err) = result {
@@ -50,6 +51,18 @@ fn main() -> Result<()> {
 }
 
 
+fn run_tui(projects: Projects) -> Result<()> {
+    clear_selected_project_file()?;
+    let selected_project = tui::run(projects)?;
+
+    if let Some(selected_project) = selected_project {
+        write_selected_project_file(selected_project)?
+    }
+
+    Ok(())
+}
+
+
 fn handle_subcommands(mut projects: Projects, cmd: &Command) -> Result<()> {
     match cmd {
         Command::Add { path } => {
@@ -91,6 +104,27 @@ fn list_projects(projects: &Projects) -> Result<()> {
     Ok(())
 }
 
+fn clear_selected_project_file() -> Result<()> {
+    let cache_file = dirs::cache_path().join("selected-project");
+
+    if fs::exists(&cache_file)? {
+        fs::remove_file(cache_file)?;
+    }
+
+    Ok(())
+}
+
+fn write_selected_project_file(path: PathBuf) -> Result<()> {
+    let cache_file = dirs::cache_path().join("selected-project");
+    let mut file = fs::OpenOptions::new()
+        .write(true)
+        .create(true)
+        .truncate(true)
+        .open(cache_file)?;
+    write!(file, "{}", path.display())?;
+    Ok(())
+}
+
 fn write_projects_file(projects: &Projects) -> Result<()> {
     let projects_file = dirs::data_path().join("projects");
 

src/tui.rs

@@ -43,7 +43,7 @@ impl State {
 }
 
 
-pub fn run(projects: Projects) -> Result<()> {
+pub fn run(projects: Projects) -> Result<Option<PathBuf>> {
     let mut term = ratatui::init();
     let mut state = State::new(projects);
 
@@ -69,11 +69,7 @@ pub fn run(projects: Projects) -> Result<()> {
 
     ratatui::restore();
 
-    if let Some(path) = state.selected_project {
-        println!("{}", path.display());
-    }
-
-    Ok(())
+    Ok(state.selected_project)
 }
 
 
@@ -105,6 +101,7 @@ fn handle_messages(state: &mut State, rx: &mut mpsc::Receiver<Message>) -> Resul
     match msg {
         Message::Exit => {
             state.should_exit = true;
+            state.selected_project = None;
         }
         Message::MoveDown => {
             state.project_table.select_next();