From fb80e9c1cd4c2dcbb2d2ba1e2be8c7e19b9f0ce1 Mon Sep 17 00:00:00 2001
From: Jonas Maier <jonas@x77.dev>
Date: Thu, 5 Mar 2026 23:54:56 +0100
Subject: very buggy beginning of tab completion

---
 src/main.rs | 45 ++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 40 insertions(+), 5 deletions(-)

(limited to 'src/main.rs')

diff --git a/src/main.rs b/src/main.rs
index 5b195e4..a5820e7 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,14 +5,14 @@ use std::os::unix::io::AsRawFd;
 use std::path::Path;
 use std::process::{Command, Stdio};
 
+pub mod completion;
 pub mod cursor;
 pub mod linebuf;
 pub mod panic;
 pub mod parse;
 pub mod raw;
-pub mod run;
 pub mod reload;
-pub mod completion;
+pub mod run;
 
 use linebuf::LineBuf;
 use raw::*;
@@ -181,7 +181,40 @@ fn event_loop() {
             }
 
             b'\t' => {
-                todo!()
+                let cmd = se.line.into_bytes();
+                let comp = parse::completion_context(&cmd);
+                match comp.kind {
+                    parse::CompletionKind::Command => todo!(),
+                    parse::CompletionKind::Argument => {
+                        let suggestions = completion::path_completion(comp.partial);
+                        if suggestions.len() == 0 {
+                            continue;
+                        }
+
+                        if suggestions.len() == 1 {
+                            // apply suggestion
+                            todo!("apply suggestion");
+                        }
+
+                        cursor::save();
+
+                        // one line below
+                        print!("\r\n");
+                        for s in suggestions {
+                            io::stdout().lock().write_all(&s.display).unwrap();
+                            println!();
+                        }
+
+                        cursor::restore();
+                        stdout.lock().flush().unwrap();
+                    }
+                    parse::CompletionKind::None => {
+                        for _ in 0..4 {
+                            se.line.add(b' ');
+                            print!(" ")
+                        }
+                    }
+                }
             }
 
             // Escape sequence
@@ -265,8 +298,10 @@ fn main() {
             Ok(_) => break,
             Err(_) => {
                 #[cfg(debug_assertions)]
-                unsafe { reload::continue_reload() }
-            },
+                unsafe {
+                    reload::continue_reload()
+                }
+            }
         }
     }
 
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