go-garminconnect/TODO.md

# Go GarminConnect Port Implementation Plan

## Phase 1: Setup & Core Structure
- [x] Initialize Go module
- [x] Create directory structure
- [x] Set up CI/CD pipeline basics
- [x] Create basic Docker infrastructure
- [x] Add initial documentation

## Phase 2: Authentication System
- [ ] Implement OAuth2 flow
- [ ] Create token storage interface
- [ ] Add MFA handling
- [ ] Write authentication tests

## Phase 3: API Client Core
- [ ] Define Client struct
- [ ] Implement request/response handling
- [ ] Add error handling
- [ ] Setup logging
- [ ] Implement rate limiting

## Phase 4: Endpoint Implementation
- [ ] Port user profile endpoint
- [ ] Port activities endpoints
- [ ] Port health data endpoints
- [ ] Implement pagination handling
- [ ] Add response validation

## Phase 5: FIT Handling
- [x] Create FIT decoder
- [ ] Implement FIT encoder
- [ ] Add FIT file tests
- [ ] Integrate with activity endpoints