From e568ccb94011146288b4bd63952be741b7500df5 Mon Sep 17 00:00:00 2001
From: Jonas Maier <jonas@x77.dev>
Date: Fri, 6 Mar 2026 12:51:07 +0100
Subject: completion somewhat works

---
 src/completion.rs | 11 +++++++++--
 src/main.rs       | 40 ++++++++++++++++++++++++++--------------
 2 files changed, 35 insertions(+), 16 deletions(-)

diff --git a/src/completion.rs b/src/completion.rs
index cb030a1..407a397 100644
--- a/src/completion.rs
+++ b/src/completion.rs
@@ -3,7 +3,7 @@ use std::fs;
 
 pub struct Suggestion {
     pub display: BString,
-    full: BString,
+    pub delta: BString,
 }
 
 fn _path_completion(mut prefix: BString) -> io::Result<Vec<Suggestion>> {
@@ -27,9 +27,16 @@ fn _path_completion(mut prefix: BString) -> io::Result<Vec<Suggestion>> {
         let entry = entry?;
         let name = entry.file_name().as_bytes().to_vec();
         if name.starts_with(&partial_entry) {
+            let mut delta = name[partial_entry.len()..].to_vec();
+
+            let is_dir = entry.metadata().map(|m| m.is_dir()).unwrap_or(false);
+            if is_dir {
+                delta.push(b'/');
+            }
+
             sugs.push(Suggestion {
                 display: name,
-                full: entry.path().as_os_str().as_bytes().to_vec(),
+                delta,
             });
         }
     }
diff --git a/src/main.rs b/src/main.rs
index a5820e7..19e7743 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -96,6 +96,27 @@ impl Session {
     fn prompt(&self) -> String {
         format!("{} $ ", self.pretty_cwd())
     }
+
+    fn clear_prompt(&mut self) {
+        cursor::move_cursor(Direction::Right, self.line.distance_from_right_end());
+        for _ in 0..self.line.len() {
+            write!(io::stdout(), "\x08 \x08").unwrap();
+        }
+        io::stdout().lock().flush().unwrap();
+        self.line.clear();
+    }
+
+    fn type_byte(&mut self, b: u8) {
+        self.line.add(b);
+        io::stdout().lock().write_all(&[b]).unwrap();
+        self.line.display_post(b"");
+    }
+
+    fn type_bytes(&mut self, bs: &[u8]) {
+        for b in bs.iter() {
+            self.type_byte(*b);
+        }
+    }
 }
 
 fn read1() -> u8 {
@@ -131,13 +152,7 @@ fn event_loop() {
         match buf[0] {
             // Ctrl+C
             3 => {
-                // clear line
-                cursor::move_cursor(Direction::Right, se.line.distance_from_right_end());
-                for _ in 0..se.line.len() {
-                    write!(io::stdout(), "\x08 \x08").unwrap();
-                }
-                io::stdout().lock().flush().unwrap();
-                se.line.clear();
+                se.clear_prompt();
             }
 
             // EOF
@@ -172,9 +187,7 @@ fn event_loop() {
                 if se.line.is_empty() && !se.line.is_dirty() && !se.history.is_empty() {
                     // take previous command for editing
                     let cmd = se.history[se.history.len() - 1].clone();
-                    io::stdout().write_all(&cmd).unwrap();
-                    io::stdout().flush().unwrap();
-                    se.line.set_content(cmd);
+                    se.type_bytes(&cmd);
                 } else if se.line.del_left().is_some() {
                     print!("\x08 \x08");
                 }
@@ -193,7 +206,8 @@ fn event_loop() {
 
                         if suggestions.len() == 1 {
                             // apply suggestion
-                            todo!("apply suggestion");
+                            se.type_bytes(&suggestions[0].delta);
+                            continue;
                         }
 
                         cursor::save();
@@ -273,9 +287,7 @@ fn event_loop() {
 
             // Normal character
             x => {
-                se.line.add(x);
-                stdout.lock().write_all(&[x]).unwrap();
-                se.line.display_post(b"");
+                se.type_byte(x);
             }
         }
     }
-- 
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