Generate types script

backend/src/bin/generate_types.rs

@@ -1,17 +1,17 @@
 use std::{env, fs, path::Path};
-use ts_rs::TS; // make sure this is in [build-dependencies]
+use ts_rs::TS; // in [build-dependencies]
 
 fn main() {
-    // Where the combined types.ts will live
+    // 1. Make sure ../shared exists
     let shared_path = Path::new("../shared");
     fs::create_dir_all(shared_path).expect("cannot create ../shared");
 
     println!("Generating TypeScript types…");
 
-    // Tell ts-rs where to drop its per-type files (we’ll still roll our own big one)
+    // 2. Let ts-rs write its per-type files here (handy for debugging)
     env::set_var("TS_RS_EXPORT_DIR", shared_path.to_str().unwrap());
 
-    // Collect every declaration at *runtime* (so no const-eval issues)
+    // 3. Grab every Rust type you want on the TS side
     let decls = [
         vibe_kanban::models::ApiResponse::<()>::decl(),
         vibe_kanban::models::config::Config::decl(),
@@ -43,16 +43,29 @@ fn main() {
         vibe_kanban::models::task_attempt::BranchStatus::decl(),
     ];
 
-    // Header banner
+    // 4. Friendly banner
     const HEADER: &str =
         "// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs).\n\
          // Do not edit this file manually.\n\
          // Auto-generated from Rust backend types using ts-rs\n\n";
 
-    // Smash it all together
-    let consolidated = format!("{HEADER}{}", decls.join("\n\n"));
+    // 5. Add `export` if it’s missing, then join
+    let body = decls
+        .into_iter()
+        .map(|d| {
+            let trimmed = d.trim_start();
+            if trimmed.starts_with("export") {
+                d
+            } else {
+                format!("export {trimmed}")
+            }
+        })
+        .collect::<Vec<_>>()
+        .join("\n\n");
 
-    fs::write(shared_path.join("types.ts"), consolidated).expect("unable to write types.ts");
+    // 6. Write the consolidated types.ts
+    fs::write(shared_path.join("types.ts"), format!("{HEADER}{body}"))
+        .expect("unable to write types.ts");
 
     println!("✅ TypeScript types generated in ../shared/");
 }