Changed generate.dart script to dynamically look for needed files for linux/windows/macos with newest version

scripts/generate.dart

@@ -4,8 +4,7 @@ import "package:path/path.dart" as path;
 
 void main(List<String> args) async {
   final Directory repoDir = Directory.fromUri(Platform.script.resolve("../gomuks"));
-
+  print("Generating FFI Bindings for ${Platform.operatingSystem}...");
-  print("Generating FFI Bindings...");
 
   int? parseVersion(String name) {
     final RegExpMatch? match = RegExp(r"^(\d+)(?:\.(\d+))?(?:\.(\d+))?$").firstMatch(name);
@@ -17,63 +16,145 @@ void main(List<String> args) async {
     final int major = int.tryParse(match.group(1)!) ?? 0;
     final int minor = int.tryParse(match.group(2) ?? "0") ?? 0;
     final int patch = int.tryParse(match.group(3) ?? "0") ?? 0;
-    return major * 10000 + minor * 100 + patch; //Single number to compare versions based on integer math
+    return major * 10000 + minor * 100 + patch;
   }
 
-  final Directory gccBaseDir = Directory("/usr/lib/gcc/x86_64-pc-linux-gnu");
+  final List<String> systemIncludePaths = [];
-  String? latestGccIncludePath;
+  late String targetTriple;
+  late String libclangName;
 
-  if (await gccBaseDir.exists()) {
+  if (Platform.isLinux) {
-    final Iterable<Directory> entries = gccBaseDir.listSync().whereType<Directory>();
+    targetTriple = "x86_64-pc-linux-gnu";
+    libclangName = "libclang.so";
 
-    final List<Directory> versionDirs = entries.where((dir) {
+    final Directory gccBaseDir = Directory("/usr/lib/gcc/x86_64-pc-linux-gnu");
-      final String name = path.basename(dir.path);
-      return parseVersion(name) != null;
-    }).toList();
 
-    if (versionDirs.isNotEmpty) {
+    if (await gccBaseDir.exists()) {
-      versionDirs.sort((a, b) {
+      final List<Directory> dirs = gccBaseDir.listSync().whereType<Directory>().toList();
-        final int verA = parseVersion(path.basename(a.path))!;
+
-        final int verB = parseVersion(path.basename(b.path))!;
+      dirs.sort((a, b) {
-        return verB.compareTo(verA); // Descending
+        final int va = parseVersion(path.basename(a.path)) ?? 0;
+        final int vb = parseVersion(path.basename(b.path)) ?? 0;
+        return vb.compareTo(va);
       });
       
-      final Directory latestDir = versionDirs.first;
+      if (dirs.isNotEmpty) {
-      latestGccIncludePath = path.join(latestDir.path, "include");
+        final Directory latest = dirs.first;
-      print("Successfully detected GCC version: ${path.basename(latestDir.path)} -> Using: $latestGccIncludePath");
+        final String inc = path.join(latest.path, "include");
-    } else {
+        systemIncludePaths.add(inc);
-      print("!Warning!: No GCC version directories found in ${gccBaseDir.path}");
+        systemIncludePaths.add(path.dirname(inc));
+        print("Using GCC: ${path.basename(latest.path)}");
+      }
     }
+
+    final Directory clangDir = Directory("/usr/lib/clang");
+
+    if (await clangDir.exists()) {
+      final List<Directory> dirs = clangDir.listSync().whereType<Directory>().toList();
+      dirs.sort((a, b) {
+        final int va = parseVersion(path.basename(a.path)) ?? 0;
+        final int vb = parseVersion(path.basename(b.path)) ?? 0;
+        return vb.compareTo(va);
+      });
+
+      if (dirs.isNotEmpty) {
+        systemIncludePaths.add(path.join(dirs.first.path, "include"));
+      }
+    }
+
+    systemIncludePaths.addAll(["/usr/include", "/usr/include/x86_64-linux-gnu", "/usr/local/include"]);
+
+  } else if (Platform.isMacOS) {
+    final String arch = _detectMacArch();
+    targetTriple = "$arch-apple-darwin";
+    libclangName = "libclang.dylib";
+
+    final String? sdkPath = _runCommand("xcrun", ["--show-sdk-path"]);
+    if (sdkPath != null) {
+      systemIncludePaths.add(path.join(sdkPath, "usr", "include"));
+      print("Using Xcode SDK: $sdkPath");
+    }
+
+    final String? clangResDir = _runCommand("clang", ["-print-resource-dir"]);
+    if (clangResDir != null) {
+      final String inc = path.join(clangResDir, "include");
+
+      if (Directory(inc).existsSync()) {
+        systemIncludePaths.add(inc);
+      } 
+    }
+
+    final String brewPrefix = arch == "arm64" ? "/opt/homebrew" : "/usr/local";
+    final Directory brewGcc = Directory(path.join(brewPrefix, "opt", "gcc", "lib", "gcc", "current", "include"));
+
+    if (brewGcc.existsSync()) {
+      systemIncludePaths.add(brewGcc.path);
+      print("Using Homebrew GCC");
+    }
+
+    systemIncludePaths.addAll(["$brewPrefix/include", "/usr/local/include"]);
+
+  } else if (Platform.isWindows) {
+
+    targetTriple = "x86_64-pc-windows-msvc";
+    libclangName = "libclang.dll";
+
+    final String vswhere = r"C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe";
+    final String? vsPath = _runCommand(vswhere, ["-latest", "-property", "installationPath"]);
+
+    if (vsPath != null) {
+      final Directory msvcDir = Directory(path.join(vsPath, "VC", "Tools", "MSVC"));
+
+      if (msvcDir.existsSync()) {
+        final List<Directory> dirs = msvcDir.listSync().whereType<Directory>().toList();
+        dirs.sort((a, b) {
+          final int va = parseVersion(path.basename(a.path)) ?? 0;
+          final int vb = parseVersion(path.basename(b.path)) ?? 0;
+          return vb.compareTo(va);
+        });
+
+        if (dirs.isNotEmpty) {
+          systemIncludePaths.add(path.join(dirs.first.path, "include"));
+          print("Using MSVC: ${path.basename(dirs.first.path)}");
+        }
+      }
+    }
+
+    final Directory sdkDir = Directory(r"C:\Program Files (x86)\Windows Kits\10\Include");
+    if (sdkDir.existsSync()) {
+      final List<Directory> dirs = sdkDir.listSync().whereType<Directory>().toList();
+      
+      dirs.sort((a, b) {
+        final int va = parseVersion(path.basename(a.path)) ?? 0;
+        final int vb = parseVersion(path.basename(b.path)) ?? 0;
+        return vb.compareTo(va);
+      });
+
+      if (dirs.isNotEmpty) {
+        final String sdkVer = dirs.first.path;
+        for (final String sub in ["um", "ucrt", "shared"]) {
+          final String p = path.join(sdkVer, sub);
+          if (Directory(p).existsSync()) systemIncludePaths.add(p);
+        }
+        print("Using Windows SDK: ${path.basename(sdkVer)}");
+      }
+    }
+
+    final Directory llvmDir = Directory(r"C:\Program Files\LLVM\include");
+    
+    if (llvmDir.existsSync()) {
+     systemIncludePaths.add(llvmDir.path);
+    }
+
   } else {
-    print("!Warning!: GCC base directory not found at ${gccBaseDir.path}");
+
+    print("Error: Unsupported platform: ${Platform.operatingSystem}");
+    exit(1);
+
   }
 
-  final List<String> systemIncludePaths = <String>[];
+  print("Target: $targetTriple");
-
+  print("Include paths: ${systemIncludePaths.length} found");
-  if (latestGccIncludePath != null) {
-    systemIncludePaths.add(latestGccIncludePath);
-    systemIncludePaths.add(path.dirname(latestGccIncludePath)); 
-  }
-
-  final Directory clangDir = Directory("/usr/lib/clang");
-  if (await clangDir.exists()) {
-    final List<Directory> clangEntries = clangDir.listSync().whereType<Directory>().toList();
-    if (clangEntries.isNotEmpty) {
-      clangEntries.sort((a, b) {
-        final verA = parseVersion(path.basename(a.path)) ?? 0;
-        final verB = parseVersion(path.basename(b.path)) ?? 0;
-        return verB.compareTo(verA);
-      });
-      systemIncludePaths.add(path.join(clangEntries.first.path, "include"));
-    }
-  }
-
-//Standard Paths
-  systemIncludePaths.addAll([
-    "/usr/include",
-    "/usr/include/x86_64-linux-gnu",
-    "/usr/local/include",
-  ]);
 
   final String? libclangPath = Platform.environment["LIBCLANG_PATH"];
 
@@ -85,16 +166,30 @@ void main(List<String> args) async {
       entryPoints: [File(path.join(repoDir.path, "pkg", "ffi", "gomuksffi.h")).uri],
       compilerOptions: [
         "--no-warnings",
-        "-target", "x86_64-pc-linux-gnu",
+        "-target", targetTriple,
-        ...systemIncludePaths.map((path) => "-I$path"),
+        ...systemIncludePaths.map((p) => "-I$p"),
       ],
     ),
     functions: Functions.includeAll,
   ).generate(
     libclangDylib: libclangPath == null
         ? null
-        : Uri.file(path.join(libclangPath, "libclang.so")),
+        : Uri.file(path.join(libclangPath, libclangName)),
   );
 
   print("Done!");
 }
+
+String _detectMacArch() {
+  final String? res = _runCommand("uname", ["-m"]);
+  return res?.trim() == "arm64" ? "arm64" : "x86_64";
+}
+
+String? _runCommand(String exe, List<String> args) {
+  try {
+    final ProcessResult res = Process.runSync(exe, args);
+    return res.exitCode == 0 ? (res.stdout as String).trim() : null;
+  } catch (_) {
+    return null;
+  }
+}