import { existsSync, readFileSync, writeFileSync } from "node:fs";

/** Write generated UTF-8 output only when bytes changed, preserving mtimes on no-op builds. */
export function writeGeneratedFile(path: string, content: string): boolean {
  const normalized = content.replace(/\r\n/g, "\n");
  if (existsSync(path) && readFileSync(path, "utf8").replace(/\r\n/g, "\n") === normalized) {
    return false;
  }
  writeFileSync(path, normalized, "utf8");
  return true;
}