From 983bc924942108beb59d8aa42ad8377e85f0cac8 Mon Sep 17 00:00:00 2001
From: Simon Oberzier <simon.oberzier@outlook.de>
Date: Thu, 11 Jun 2026 22:00:05 +0200
Subject: [PATCH] Cobol file compilation

---
 code/src/main.rs | 28 +++++++++++++++++++++-------
 1 file changed, 21 insertions(+), 7 deletions(-)

diff --git a/code/src/main.rs b/code/src/main.rs
index 69998ce..24fa381 100644
--- a/code/src/main.rs
+++ b/code/src/main.rs
@@ -8,6 +8,8 @@ use std::fs::File;
 use std::io::Read;
 use std::net::SocketAddr;
 use std::sync::Arc;
+use std::path::Path;
+use std::process::Command;
 
 #[derive(Debug, Serialize, Deserialize)]
 struct ApiConfig {
@@ -35,13 +37,6 @@ struct Argument {
     source: String,
 }
 
-#[repr(C, packed)]
-struct Student {
-    st_id: [u8; 5],
-    first_name: [u8; 20],
-    last_name: [u8; 20],
-}
-
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let config = read_conf("api.yaml")?;
@@ -53,6 +48,25 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     for endpoint in config.endpoints.into_iter() {
         println!("Binding route {}", endpoint.path);
         
+        let cobol_path = Path::new(&endpoint.cobol_source);
+        let working_dir = cobol_path.parent().unwrap_or_else(|| Path::new("."));
+        let file_name = cobol_path.file_name()
+            .ok_or("Invalid COBOL filename")?;
+        let library_name = Path::new(file_name)
+            .with_extension("so");
+        let file_name_str = file_name.to_str().ok_or("Filename conversion error")?;
+        let library_name_str = library_name.to_str().ok_or("Library name conversion error")?;
+        let output = Command::new("cobc")
+            .current_dir(working_dir)
+            .args(["-m", "-O", "-o", library_name_str, file_name_str])
+            .output()?;
+
+        if !output.status.success() {
+            eprintln!("COBOL Compilation failed:\n{}", String::from_utf8_lossy(&output.stderr));
+            std::process::exit(1);
+        }
+        println!("Compilation successful: {} generated.", endpoint.cobol_source.replace(".cbl", ".so").as_str());
+        
         let path = endpoint.path.clone();
 
         app = app.route(&path, get(cobol_handler).layer(Extension(Arc::new(endpoint))));