# GASClient Refactoring - Current Status
**Date**: 2025-10-22
**Status**: **Modules Created, Facade Pattern Pending**
---
## Summary
All operation modules have been successfully extracted from gasClient.ts. The modules are complete, properly structured, and compile successfully. The final step is to refactor the main gasClient.ts file to use these modules as a facade.
---
## Completed Steps ✅
### 1. Module Files Created
All module files exist and are functional:
| Module | Lines | Status | Description |
|--------|-------|--------|-------------|
| gasTypes.ts | 233 | ✅ Complete | All shared type definitions |
| gasAuthOperations.ts | 516 | ✅ Complete | Auth, token refresh, API client management |
| gasProjectOperations.ts | 268 | ✅ Complete | Project list/get/create operations |
| gasFileOperations.ts | 211 | ✅ Complete | File CRUD operations |
| gasDeployOperations.ts | 702 | ✅ Complete | Deployment and versioning |
| gasScriptOperations.ts | 69 | ✅ Complete | Script execution |
**Total Module Lines**: 1,999 lines (vs original 2,498 lines in monolithic file)
### 2. Module Structure
All modules follow consistent patterns:
```typescript
// Example: gasProjectOperations.ts
import { GASAuthOperations } from './gasAuthOperations.js';
import { GASProject } from './gasTypes.js';
export class GASProjectOperations {
private authOps: GASAuthOperations;
constructor(authOps: GASAuthOperations) {
this.authOps = authOps;
}
async listProjects(pageSize?: number, accessToken?: string): Promise<GASProject[]> {
return this.authOps.makeApiCall(async () => {
// Implementation using this.authOps.getScriptApi() or getDriveApi()
}, accessToken);
}
}
```
### 3. Dependency Injection
Proper dependency injection implemented:
- GASAuthOperations is the foundation (no dependencies)
- GASProjectOperations depends on GASAuthOperations
- GASFileOperations depends on GASAuthOperations
- GASScriptOperations depends on GASAuthOperations
- GASDeployOperations depends on both GASAuthOperations and GASFileOperations
### 4. Build Verification
```bash
$ npm run build
✅ SUCCESS - No TypeScript errors
```
All modules compile successfully in isolation.
---
## Pending Step ⏳
### Refactor Main gasClient.ts to Facade Pattern
**Current State**: gasClient.ts is still the original 2,498-line monolithic file
**Required**: Convert to facade that delegates to operation modules
**Target Structure**:
```typescript
import { GASAuthOperations } from './gasAuthOperations.js';
import { GASProjectOperations } from './gasProjectOperations.js';
import { GASFileOperations } from './gasFileOperations.js';
import { GASDeployOperations } from './gasDeployOperations.js';
import { GASScriptOperations } from './gasScriptOperations.js';
// Re-export all types for backward compatibility
export * from './gasTypes.js';
export class GASClient {
private authOps: GASAuthOperations;
private projectOps: GASProjectOperations;
private fileOps: GASFileOperations;
private deployOps: GASDeployOperations;
private scriptOps: GASScriptOperations;
constructor() {
this.authOps = new GASAuthOperations();
this.projectOps = new GASProjectOperations(this.authOps);
this.fileOps = new GASFileOperations(this.authOps);
this.deployOps = new GASDeployOperations(this.authOps, this.fileOps);
this.scriptOps = new GASScriptOperations(this.authOps);
}
// Delegate all methods to respective operations
async listProjects(pageSize?: number, accessToken?: string) {
return this.projectOps.listProjects(pageSize, accessToken);
}
async getProject(scriptId: string, accessToken?: string) {
return this.projectOps.getProject(scriptId, accessToken);
}
// ... etc for all 28 public methods
}
```
---
## Methods to Delegate
### Auth Operations (1 method)
- `revokeTokens(accessToken?: string): Promise<boolean>`
### Project Operations (5 methods)
- `listProjects(pageSize?: number, accessToken?: string): Promise<GASProject[]>`
- `getProject(scriptId: string, accessToken?: string): Promise<GASProject>`
- `getProjectContent(scriptId: string, accessToken?: string): Promise<GASFile[]>`
- `getProjectMetadata(scriptId: string, accessToken?: string): Promise<GASFile[]>`
- `createProject(title: string, parentId?: string, accessToken?: string): Promise<GASProject>`
### File Operations (4 methods)
- `updateProjectContent(scriptId: string, files: GASFile[], accessToken?: string): Promise<GASFile[]>`
- `updateFile(scriptId: string, fileName: string, content: string, position?: number, accessToken?: string, explicitType?: 'SERVER_JS' | 'HTML' | 'JSON'): Promise<GASFile[]>`
- `deleteFile(scriptId: string, fileName: string, accessToken?: string): Promise<GASFile[]>`
- `reorderFiles(scriptId: string, fileOrder: string[], accessToken?: string): Promise<GASFile[]>`
### Deploy Operations (15 methods)
- `listDeployments(scriptId: string, accessToken?: string): Promise<GASDeployment[]>`
- `getDeployment(scriptId: string, deploymentId: string, accessToken?: string): Promise<GASDeployment>`
- `createVersion(scriptId: string, description?: string, accessToken?: string): Promise<any>`
- `createDeployment(...)`
- `updateDeployment(...)`
- `deleteDeployment(...)`
- `listVersions(...)`
- `getVersion(...)`
- `findHeadDeployment(scriptId: string, accessToken?: string): Promise<GASDeployment | null>`
- `createHeadDeployment(...)`
- `ensureHeadDeployment(...)`
- `updateContentForHeadDeployment(...)`
- `constructWebAppUrl(deploymentId: string, isHeadDeployment?: boolean): string`
- `constructGasRunUrl(scriptId: string, accessToken?: string): Promise<string>`
- `constructGasRunUrlFromWebApp(webAppUrl: string): string`
### Script Operations (1 method)
- `executeFunction(scriptId: string, functionName: string, parameters?: any[], accessToken?: string): Promise<ExecutionResponse>`
### Process/Logging Operations (4 methods)
- `listProcesses(...)`
- `listScriptProcesses(...)`
- `getProcessLogs(...)`
- `getProjectMetrics(...)`
- `listLogsWithCloudLogging(...)`
**Total**: ~30 methods to delegate
---
## Implementation Plan
### Step 1: Backup Original
```bash
cp src/api/gasClient.ts src/api/gasClient.ts.backup
```
### Step 2: Create New Facade gasClient.ts
- Import all operation modules
- Re-export all types from gasTypes.ts
- Create GASClient class with operation instances
- Delegate all 30 methods
### Step 3: Verify Compilation
```bash
npm run build
```
### Step 4: Verify No Broken Imports
All existing imports should still work:
```typescript
import { GASClient } from './api/gasClient.js';
import { GASFile, GASProject } from './api/gasClient.js';
```
---
## Benefits After Completion
1. **Modularity**: Each module ~200-700 lines (down from 2,498)
2. **Maintainability**: Clear separation of concerns
3. **Testability**: Test each module independently
4. **Reusability**: Use operation modules directly if needed
5. **Backward Compatibility**: All existing code works unchanged
6. **Type Safety**: Explicit dependencies via injection
---
## Estimated Time to Complete
- Create facade gasClient.ts: 30 minutes
- Test compilation: 5 minutes
- Verify imports: 10 minutes
**Total**: ~45 minutes
---
## Next Action
Create the new facade gasClient.ts file following the structure above.
**Command**:
```bash
# Backup original
cp src/api/gasClient.ts src/api/gasClient.ts.backup
# Create new facade (manual editing required)
# vim src/api/gasClient.ts
```
---
**Status**: Ready to create facade pattern gasClient.ts
