feat: rewrite runtime.js with typescript

nix-js/build.rs

@@ -0,0 +1,67 @@
+use std::process::Command;
+use std::path::Path;
+use std::env;
+
+fn main() {
+    let runtime_ts_dir = Path::new("runtime-ts");
+    let dist_runtime = runtime_ts_dir.join("dist/runtime.js");
+
+    if !runtime_ts_dir.exists() {
+        println!("cargo::warning=runtime-ts directory not found, using existing runtime.js");
+        return;
+    }
+
+    println!("cargo::rerun-if-changed=runtime-ts/src");
+    println!("cargo::rerun-if-changed=runtime-ts/package.json");
+    println!("cargo::rerun-if-changed=runtime-ts/tsconfig.json");
+
+    if !runtime_ts_dir.join("node_modules").exists() {
+        println!("Installing npm dependencies...");
+        let npm_cmd = if cfg!(target_os = "windows") { "npm.cmd" } else { "npm" };
+        let status = Command::new(npm_cmd)
+            .arg("install")
+            .current_dir(runtime_ts_dir)
+            .status()
+            .expect("Failed to run npm install. Is Node.js installed?");
+
+        if !status.success() {
+            panic!("npm install failed. Please check your Node.js installation.");
+        }
+    }
+
+    println!("Running TypeScript type checking...");
+    let npm_cmd = if cfg!(target_os = "windows") { "npm.cmd" } else { "npm" };
+    let status = Command::new(npm_cmd)
+        .arg("run")
+        .arg("typecheck")
+        .current_dir(runtime_ts_dir)
+        .status()
+        .expect("Failed to run type checking");
+
+    if !status.success() {
+        panic!("TypeScript type checking failed! Fix type errors before building.");
+    }
+
+    println!("Building runtime.js from TypeScript...");
+    let status = Command::new(npm_cmd)
+        .arg("run")
+        .arg("build")
+        .current_dir(runtime_ts_dir)
+        .status()
+        .expect("Failed to build runtime");
+
+    if !status.success() {
+        panic!("Runtime build failed!");
+    }
+
+    if dist_runtime.exists() {
+        println!("Successfully built runtime.js",);
+    } else {
+        panic!("dist/runtime.js not found after build");
+    }
+
+    // Print build info
+    if env::var("CARGO_CFG_DEBUG_ASSERTIONS").is_ok() {
+        println!("Built runtime.js in DEBUG mode");
+    }
+}