Remove IIFE wrapper from googleDriveAdapterHelper.js

Changed from IIFE pattern to direct object literal evaluation

Rationale:
- Global variable functions should evaluate to an object directly
- IIFE wrapper was unnecessary complexity
- Simpler pattern: code evaluates to object, not function that returns object
- Matches intended architecture for vm.Script module loading

Changes:
1. Removed IIFE wrapper:
   - Before: (function createHelpers() { ... return {...} })()
   - After: ({ ... })

2. Removed function indentation (2 spaces throughout file)

3. Updated constitution.md:
   - Pattern description: 'IIFE returning object' → 'evaluates to a single object'
   - Clarified: 'not wrapped in IIFE'
   - Updated all pattern references

Structure:
- File defines classes and functions at top level
- Final expression is object literal referencing all functions
- When executed via vm.Script, evaluates to the object
- Object is assigned to globalVariableContext.googleDriveAdapterHelper

Benefits:
✅ Simpler pattern (no function wrapper)
✅ Clearer intent (direct object evaluation)
✅ Matches architecture description
✅ Easier to understand and maintain
✅ Same functionality, cleaner implementation

Before (IIFE):

After (Object Literal):

Testing:
✓ Syntax validated
✓ Server starts successfully
✓ Module loads: 'Loaded global functions: googleDriveAdapterHelper'
✓ All function calls work correctly
✓ Request handling works as expected

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.specify/memory/constitution.md

@@ -204,9 +204,9 @@ Follow-up TODOs:
 
 **Helper Functions Pattern**: Pure utility functions (XML escaping, validation, formatting, routing) MAY be extracted to `src/globalVariables/googleDriveAdapterHelper.js` to improve readability and maintainability. The helpers module:
 - MUST be loaded via `vm.Script` (same isolation as proxy.js)
-- MUST return a single object with all helper functions
+- MUST evaluate to a single JavaScript object with all helper functions
 - MUST have ZERO imports/exports
-- Is injected as `helpers` global object into VM context
+- Is injected as `googleDriveAdapterHelper` global object into VM context
 - Contains ONLY pure utilities, NO business logic or state
 
 ### I. Zero External Imports or Exports from `src/proxyScripts/proxy.js` (NON-NEGOTIABLE)
@@ -291,11 +291,11 @@ config/
 
 **googleDriveAdapterHelper.js Pattern**:
 - MUST be loaded using `vm.Script` (same isolation as proxy.js)
-- MUST return single object with all helper functions via IIFE
+- MUST evaluate to a single JavaScript object (not wrapped in IIFE)
 - MUST have ZERO imports/exports (pure vm.Script execution)
 - Loaded by `loadGlobalVariables()` which scans for both JSON and JS files
-- Filename determines global key: `googleDriveAdapterHelper.js` → `globalVariableContext.helpers`
+- Filename determines global key: `googleDriveAdapterHelper.js` → `globalVariableContext.googleDriveAdapterHelper`
-- Injected as `helpers` global object into VM context
+- Injected as `googleDriveAdapterHelper` global object into VM context
 - Contains ONLY pure utilities: validators, formatters, XML, error mappers
 - MUST NOT contain: authentication, API calls, state, business decisions
 - Executed in context with full access to globalVMContext and globalVariableContext
@@ -441,7 +441,6 @@ script.runInContext(context);
 10. **googleDriveAdapterHelper** - Pure utility functions object (OPTIONAL)
     - Purpose: Extracted helper functions for code organization
     - Source: `src/globalVariables/googleDriveAdapterHelper.js` loaded via `vm.Script`
-    - Pattern: IIFE returning object with all helper functions
     - Loading: server.js loads via `loadGlobalVariables()` at startup
     - Generic Loading Pattern:
       - All .js files in globalVariables/ are loaded automatically

src/globalVariables/googleDriveAdapterHelper.js

@@ -17,43 +17,41 @@
  * @returns {Object} Helpers object with all utility functions
  */
 
-// Wrap in IIFE that returns helpers object
+/**
-(function createHelpers() {
-  /**
  * Custom error for document count exceeding limit
  */
-  class DocumentCountExceededError extends Error {
+class DocumentCountExceededError extends Error {
-    constructor(count, limit) {
+constructor(count, limit) {
   super(`Document count ${count} exceeds limit of ${limit}`);
   this.name = "DocumentCountExceededError";
   this.count = count;
   this.limit = limit;
   this.statusCode = 413;
-    }
+}
-  }
+}
 
-  // =============================================================================
+// =============================================================================
-  // Utility Functions
+// Utility Functions
-  // =============================================================================
+// =============================================================================
 
-  /**
+/**
  * Generate a unique request ID for tracing
  * Uses UUID v4 for uniqueness
  *
  * @returns {string} Request ID in format: req_<uuid>
  */
-  function generateRequestId() {
+function generateRequestId() {
-    return `req_${crypto.randomUUID()}`;
+return `req_${crypto.randomUUID()}`;
-  }
+}
 
-  /**
+/**
  * Validate document ID format
  * Google Drive IDs are alphanumeric with hyphens and underscores
  *
  * @param {string} id - Document ID to validate
  * @returns {boolean} True if valid
  */
-  function validateDocumentId(id) {
+function validateDocumentId(id) {
   if (!id || typeof id !== "string") {
     return false;
   }
@@ -62,33 +60,33 @@
   // Characters: a-z, A-Z, 0-9, -, _
   const pattern = /^[a-zA-Z0-9_-]{8,128}$/;
   return pattern.test(id);
-  }
+}
 
-  /**
+/**
  * Validate document count against limit
  *
  * @param {number} count - Document count
  * @param {number} limit - Maximum allowed (default: 50000)
  * @throws {DocumentCountExceededError} If count > limit
  */
-  function validateDocumentCount(count, limit = 50000) {
+function validateDocumentCount(count, limit = 50000) {
   if (count > limit) {
     throw new DocumentCountExceededError(count, limit);
   }
-  }
+}
 
-  // =============================================================================
+// =============================================================================
-  // XML Utilities
+// XML Utilities
-  // =============================================================================
+// =============================================================================
 
-  /**
+/**
  * Escape special XML characters
  * Prevents XML injection and ensures valid XML output
  *
  * @param {string} str - String to escape
  * @returns {string} Escaped string safe for XML
  */
-  function escapeXml(str) {
+function escapeXml(str) {
   if (!str) return "";
 
   return str
@@ -97,13 +95,13 @@
     .replace(/>/g, "&gt;")
     .replace(/"/g, "&quot;")
     .replace(/'/g, "&apos;");
-  }
+}
 
-  // =============================================================================
+// =============================================================================
-  // Error Mapping
+// Error Mapping
-  // =============================================================================
+// =============================================================================
 
-  /**
+/**
  * Map Drive API error to HTTP status code and retry info
  *
  * Per specification:
@@ -115,7 +113,7 @@
  * @param {Error} error - Drive API error
  * @returns {Object} { statusCode, retryAfter? }
  */
-  function mapDriveErrorToHttp(error) {
+function mapDriveErrorToHttp(error) {
   // Handle DocumentCountExceededError
   if (error instanceof DocumentCountExceededError) {
     return { statusCode: 413 };
@@ -148,13 +146,13 @@
 
   // All other errors map to 500
   return { statusCode: 500 };
-  }
+}
 
-  // =============================================================================
+// =============================================================================
-  // Sitemap Functions
+// Sitemap Functions
-  // =============================================================================
+// =============================================================================
 
-  /**
+/**
  * Transform Drive document to sitemap entry
  *
  * Creates RESTful URL in format: {baseUrl}/documents/{documentId}
@@ -166,7 +164,7 @@
  * @param {string} baseUrl - Base URL for the adapter
  * @returns {Object} Sitemap entry { loc, lastmod }
  */
-  function toSitemapEntry(document, baseUrl) {
+function toSitemapEntry(document, baseUrl) {
   if (!document || !document.id) {
     console.error("Invalid document for sitemap entry", { document });
     return null;
@@ -193,16 +191,16 @@
   }
 
   return { loc, lastmod };
-  }
+}
 
-  /**
+/**
  * Transform array of Drive documents to sitemap entries
  *
  * @param {Array<Object>} documents - Array of Drive API documents
  * @param {string} baseUrl - Base URL for the adapter
  * @returns {Array<Object>} Array of sitemap entries
  */
-  function transformDocumentsToSitemapEntries(documents, baseUrl) {
+function transformDocumentsToSitemapEntries(documents, baseUrl) {
   if (!Array.isArray(documents)) {
     console.error("Documents must be an array", { documents });
     return [];
@@ -211,9 +209,9 @@
   return documents
     .map((doc) => toSitemapEntry(doc, baseUrl))
     .filter((entry) => entry !== null);
-  }
+}
 
-  /**
+/**
  * Generate XML sitemap from sitemap entries
  *
  * Handles empty sitemap (0 documents) case - returns valid XML with empty urlset.
@@ -221,7 +219,7 @@
  * @param {Array<Object>} sitemapEntries - Array of { loc, lastmod } objects
  * @returns {string} Complete XML sitemap string
  */
-  function generateSitemapXML(sitemapEntries) {
+function generateSitemapXML(sitemapEntries) {
   let xml = '<?xml version="1.0" encoding="UTF-8"?>\n';
   xml += '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">\n';
 
@@ -241,9 +239,9 @@
   xml += "</urlset>";
 
   return xml;
-  }
+}
 
-  /**
+/**
  * Main sitemap generation function
  *
  * Combines document transformation and XML generation.
@@ -252,22 +250,22 @@
  * @param {string} baseUrl - Base URL for the adapter
  * @returns {string} Complete XML sitemap
  */
-  function generateSitemap(documents, baseUrl) {
+function generateSitemap(documents, baseUrl) {
   const entries = transformDocumentsToSitemapEntries(documents, baseUrl);
   return generateSitemapXML(entries);
-  }
+}
 
-  // =============================================================================
+// =============================================================================
-  // Route Parsing
+// Route Parsing
-  // =============================================================================
+// =============================================================================
 
-  /**
+/**
  * Parse route from request
  * @param {string} method - HTTP method
  * @param {string} url - Request URL
  * @returns {Object} Route info or error
  */
-  function parseRoute(method, url) {
+function parseRoute(method, url) {
   if (method !== "GET") {
     return { route: null, error: "Method not allowed", statusCode: 405 };
   }
@@ -280,36 +278,35 @@
     return { route: "sitemap" };
   }
 
-    // All other paths return 404
+// All other paths return 404
-    return { route: null, error: "Not found", statusCode: 404 };
+return { route: null, error: "Not found", statusCode: 404 };
-  }
+}
 
-  // =============================================================================
+// =============================================================================
-  // Return helpers object with all functions
+// Return helpers object with all functions
-  // =============================================================================
+// =============================================================================
 
-  return {
+({
-    // Error classes
+// Error classes
-    DocumentCountExceededError,
+DocumentCountExceededError,
 
-    // Utilities
+// Utilities
-    generateRequestId,
+generateRequestId,
-    validateDocumentId,
+validateDocumentId,
-    validateDocumentCount,
+validateDocumentCount,
 
-    // XML
+// XML
-    escapeXml,
+escapeXml,
 
-    // Error mapping
+// Error mapping
-    mapDriveErrorToHttp,
+mapDriveErrorToHttp,
 
-    // Sitemap
+// Sitemap
-    toSitemapEntry,
+toSitemapEntry,
-    transformDocumentsToSitemapEntries,
+transformDocumentsToSitemapEntries,
-    generateSitemapXML,
+generateSitemapXML,
-    generateSitemap,
+generateSitemap,
 
-    // Routing
+// Routing
-    parseRoute,
+parseRoute,
-  };
+});
-})();