# Adobe Helper - Implementation Plan

## Phase 1: Project Setup & Architecture ✅

- [x] Study Adobe PDF-to-Word website using Chrome DevTools
- [x] Analyze network requests and API endpoints
- [x] Update AGENTS.md with Adobe architecture
- [x] Move old Futunn files to archive folder
- [x] Create implementation plan

## Phase 2: Core Infrastructure (Week 1)

### 2.1 Project Structure Setup
- [ ] Create basic package structure (`adobe/` directory)
- [ ] Set up pyproject.toml with dependencies
- [ ] Configure ruff, black, mypy
- [ ] Set up pytest configuration
- [ ] Create .gitignore (exclude `.adobe-helper/`, `*.pyc`, etc.)

### 2.2 Data Models (`adobe/models.py`)
- [ ] Create `ConversionStatus` enum
- [ ] Create `ConversionJob` dataclass
- [ ] Create `FileInfo` dataclass
- [ ] Create `SessionInfo` dataclass
- [ ] Add Pydantic validators

### 2.3 Error Handling (`adobe/exceptions.py`)
- [ ] Create `AdobeHelperError` base exception
- [ ] Create `AuthenticationError` exception
- [ ] Create `UploadError` exception
- [ ] Create `ConversionError` exception
- [ ] Create `DownloadError` exception
- [ ] Create `QuotaExceededError` exception

## Phase 3: Network Analysis & API Discovery (Week 2)

### 3.1 Live Network Capture
- [ ] Use Chrome DevTools to upload actual PDF file
- [ ] Record all network requests (endpoints, headers, payloads)
- [ ] Extract authentication flow details
- [ ] Document multipart upload format
- [ ] Identify conversion job polling endpoint
- [ ] Find download URL generation method

### 3.2 JavaScript Analysis
- [ ] Analyze `workflow.js` for upload logic
- [ ] Extract CSRF token generation method
- [ ] Study `action-binder.js` for workflow steps
- [ ] Reverse engineer file validation logic
- [ ] Document required headers and cookies

### 3.3 API Documentation
- [ ] Create `API_ENDPOINTS.md` with discovered URLs
- [ ] Document request/response formats
- [ ] Map authentication requirements
- [ ] Note rate limiting behavior

## Phase 4: Session Management (Week 3)

### 4.1 Basic Session (`adobe/auth.py`)
- [ ] Create `SessionManager` class
- [ ] Implement session initialization
- [ ] Extract CSRF tokens from responses
- [ ] Save/load session cookies
- [ ] Implement session validation

### 4.2 Anonymous Session Cycling (`adobe/session_cycling.py`)
- [ ] Create `AnonymousSessionManager` class
- [ ] Implement session pool management
- [ ] Add user-agent rotation
- [ ] Track conversions per session
- [ ] Auto-refresh expired sessions

### 4.3 Cookie Management (`adobe/cookie_manager.py`)
- [ ] Create `CookieManager` class
- [ ] Implement save/load cookie methods
- [ ] Add encryption for sensitive cookies
- [ ] Clean up old cookie files
- [ ] Handle cookie expiration

## Phase 5: File Upload (Week 4)

### 5.1 Upload Handler (`adobe/upload.py`)
- [ ] Create `FileUploader` class
- [ ] Implement PDF file validation
- [ ] Add multipart form data encoding
- [ ] Stream large files during upload
- [ ] Handle upload progress tracking
- [ ] Implement retry logic with exponential backoff

### 5.2 File Validation
- [ ] Check file extension (.pdf)
- [ ] Validate PDF magic bytes
- [ ] Check file size limits
- [ ] Detect corrupted PDFs
- [ ] Add MIME type verification

## Phase 6: Conversion Workflow (Week 5)

### 6.1 Conversion Manager (`adobe/conversion.py`)
- [ ] Create `ConversionManager` class
- [ ] Implement conversion job submission
- [ ] Add status polling mechanism
- [ ] Implement wait_for_completion with timeout
- [ ] Handle conversion errors gracefully
- [ ] Track job progress

### 6.2 Job Status Tracking
- [ ] Poll job status at regular intervals
- [ ] Parse status responses
- [ ] Detect completion/failure
- [ ] Extract download URL from response
- [ ] Handle stuck jobs (timeout)

## Phase 7: File Download (Week 6)

### 7.1 Download Handler (`adobe/download.py`)
- [ ] Create `FileDownloader` class
- [ ] Implement streaming download
- [ ] Add download progress tracking
- [ ] Verify downloaded file integrity
- [ ] Handle partial downloads/resume
- [ ] Clean up temporary files

### 7.2 Output Management
- [ ] Auto-generate output filenames
- [ ] Respect user-specified output paths
- [ ] Create output directories if needed
- [ ] Handle existing file conflicts

## Phase 8: Rate Limiting & Quota Management (Week 7)

### 8.1 Rate Limiter (`adobe/rate_limiter.py`)
- [ ] Create `RateLimiter` class
- [ ] Add configurable min/max delays
- [ ] Implement human-like random delays
- [ ] Track last request time
- [ ] Support concurrent request limits

### 8.2 Usage Tracker (`adobe/usage_tracker.py`)
- [ ] Create `FreeUsageTracker` class
- [ ] Track daily conversion count
- [ ] Save usage data to disk
- [ ] Reset counter at midnight
- [ ] Warn when approaching limit

## Phase 9: Browser Fallback (Week 8)

### 9.1 Playwright Integration (`adobe/browser_converter.py`)
- [ ] Create `BrowserBasedConverter` class
- [ ] Install and configure Playwright
- [ ] Implement headless browser launch
- [ ] Automate file upload via browser
- [ ] Wait for conversion completion
- [ ] Handle download via browser
- [ ] Add stealth mode (avoid detection)

### 9.2 Fallback Logic
- [ ] Detect when API method fails
- [ ] Automatically switch to browser mode
- [ ] Log fallback usage
- [ ] Add configuration option to prefer browser

## Phase 10: Main Client Interface (Week 9)

### 10.1 Core Client (`adobe/client.py`)
- [ ] Create `AdobePDFConverter` class
- [ ] Implement `convert_pdf_to_word()` method
- [ ] Add async context manager support
- [ ] Integrate all components (auth, upload, convert, download)
- [ ] Add configuration options
- [ ] Implement proper cleanup

### 10.2 Convenience Methods
- [ ] Add `convert_pdf_to_excel()` (future)
- [ ] Add `convert_pdf_to_ppt()` (future)
- [ ] Add `batch_convert()` for multiple files
- [ ] Support async concurrent conversions

## Phase 11: Testing (Week 10)

### 11.1 Unit Tests
- [ ] Test session management
- [ ] Test file validation
- [ ] Test upload logic (mocked)
- [ ] Test conversion workflow (mocked)
- [ ] Test download logic (mocked)
- [ ] Test error handling
- [ ] Test rate limiting
- [ ] Test usage tracking

### 11.2 Integration Tests
- [ ] Test full conversion workflow with real API
- [ ] Test session refresh
- [ ] Test quota limits
- [ ] Test browser fallback
- [ ] Test batch conversions
- [ ] Test concurrent conversions

### 11.3 Test Coverage
- [ ] Achieve >80% code coverage
- [ ] Add edge case tests
- [ ] Test error scenarios
- [ ] Performance testing

## Phase 12: Examples & Documentation (Week 11)

### 12.1 Example Scripts
- [ ] Create `examples/basic_usage.py`
- [ ] Create `examples/batch_convert.py`
- [ ] Create `examples/async_convert.py`
- [ ] Create `examples/with_browser_fallback.py`
- [ ] Create `examples/custom_session.py`

### 12.2 Documentation
- [ ] Write comprehensive README.md
- [ ] Add API reference documentation
- [ ] Create usage guide
- [ ] Add troubleshooting section
- [ ] Document configuration options

### 12.3 Docstrings
- [ ] Add docstrings to all public methods
- [ ] Add type hints everywhere
- [ ] Generate API docs with Sphinx

## Phase 13: CLI Tool (Week 12)

### 13.1 Command Line Interface
- [ ] Create `adobe/cli.py`
- [ ] Add `convert` command
- [ ] Add `--output` option
- [ ] Add `--batch` option
- [ ] Add `--use-browser` flag
- [ ] Add progress bar for conversions

### 13.2 Configuration File
- [ ] Support `.adobe-helper.yaml` config
- [ ] Allow setting default options
- [ ] Support multiple profiles

## Phase 14: Packaging & Release (Week 13)

### 14.1 Package Preparation
- [ ] Finalize pyproject.toml
- [ ] Add LICENSE file
- [ ] Create CHANGELOG.md
- [ ] Add CONTRIBUTING.md

### 14.2 Build & Publish
- [ ] Build package with `uv build`
- [ ] Test package locally
- [ ] Publish to PyPI (test first)
- [ ] Publish to PyPI production
- [ ] Create GitHub release

## Phase 15: Maintenance & Enhancements

### 15.1 Monitoring
- [ ] Add logging throughout codebase
- [ ] Create error reporting mechanism
- [ ] Monitor API changes from Adobe
- [ ] Track success/failure rates

### 15.2 Future Features
- [ ] Add OCR support for scanned PDFs
- [ ] Support PDF to Excel conversion
- [ ] Support PDF to PowerPoint conversion
- [ ] Add cloud storage integration (Google Drive, Dropbox)
- [ ] Create simple GUI with tkinter
- [ ] Add Docker support

---

## Current Status

**Last Updated:** 2025-10-17

**Completed:**
- ✅ Phase 1: Project Setup & Architecture
- ✅ Chrome DevTools analysis of Adobe website
- ✅ AGENTS.md documentation created
- ✅ Old Futunn files archived
- ✅ Bypass strategies documented

**In Progress:**
- ⏳ Phase 2: Core Infrastructure

**Next Steps:**
1. Set up package structure
2. Perform live network capture during PDF upload
3. Document actual API endpoints
4. Begin implementing session management

---

## Notes

- **API Discovery is Critical:** Most endpoints are still hypothetical. Week 2-3 network analysis is essential.
- **Browser Fallback:** This is our safety net if Adobe implements stricter API access controls.
- **Rate Limiting:** Be respectful of Adobe's servers. Implement generous delays.
- **Legal Compliance:** Always respect Adobe's Terms of Service. This tool is for legitimate use only.
- **Session Rotation:** Don't abuse the free tier. Implement reasonable limits.

---

## Dependencies to Add

```toml
[project]
dependencies = [
    "httpx[http2]>=0.27.0",       # Async HTTP client
    "pydantic>=2.0.0",             # Data validation
    "python-dotenv>=1.0.0",        # Config management
    "click>=8.1.0",                # CLI framework
    "rich>=13.0.0",                # Pretty terminal output
    "playwright>=1.40.0",          # Browser automation (optional)
]

[project.optional-dependencies]
dev = [
    "pytest>=8.0.0",
    "pytest-asyncio>=0.23.0",
    "pytest-cov>=4.1.0",
    "pytest-mock>=3.12.0",
    "ruff>=0.7.1",
    "black>=24.0.0",
    "mypy>=1.8.0",
    "sphinx>=7.0.0",
]
```

---

## Estimated Timeline

- **Phase 1:** ✅ Complete
- **Phases 2-6:** 6 weeks (Core functionality)
- **Phases 7-10:** 4 weeks (Advanced features)
- **Phases 11-12:** 2 weeks (Testing & docs)
- **Phases 13-14:** 2 weeks (CLI & release)
- **Total:** ~14 weeks for v1.0

**Minimum Viable Product (MVP):** Phases 1-7 (~7 weeks)
