Add utility files: spec-parser, file-writer, helpers, wizard

src/utils/file-writer.ts

@@ -0,0 +1,51 @@
+import * as fs from 'fs';
+import * as path from 'path';
+
+export interface WriteOptions {
+  outputDir: string;
+  fileName: string;
+  content: string;
+  overwrite?: boolean;
+}
+
+export interface WriteResult {
+  success: boolean;
+  filePath?: string;
+  error?: string;
+}
+
+export function writeFile(options: WriteOptions): WriteResult {
+  const { outputDir, fileName, content, overwrite = false } = options;
+
+  if (!fs.existsSync(outputDir)) {
+    fs.mkdirSync(outputDir, { recursive: true });
+  }
+
+  const filePath = path.join(outputDir, fileName);
+
+  if (fs.existsSync(filePath) && !overwrite) {
+    return {
+      success: false,
+      error: `File already exists: ${filePath}`,
+    };
+  }
+
+  try {
+    fs.writeFileSync(filePath, content, 'utf-8');
+    return {
+      success: true,
+      filePath,
+    };
+  } catch (error) {
+    return {
+      success: false,
+      error: `Failed to write file: ${error instanceof Error ? error.message : 'Unknown error'}`,
+    };
+  }
+}
+
+export function ensureDirectory(dirPath: string): void {
+  if (!fs.existsSync(dirPath)) {
+    fs.mkdirSync(dirPath, { recursive: true });
+  }
+}