trails/openspec/changes/wahoo-import/tasks.md

1. Sync Framework & Database

• 1.1 Add sync_connections table to packages/db/src/schema/journal.ts (user_id FK, provider, access_token, refresh_token, expires_at, provider_user_id, created_at)
• 1.2 Add sync_imports table (user_id FK, provider, external_workout_id, activity_id FK, imported_at)
• 1.3 Define SyncProvider TypeScript interface in apps/journal/app/lib/sync/types.ts
• 1.4 Create provider registry in apps/journal/app/lib/sync/registry.ts (array of providers, lookup by id)
• 1.5 Create token storage helpers: saveConnection(), getConnection(), deleteConnection(), updateTokens() in apps/journal/app/lib/sync/connections.server.ts
• 1.6 Create import tracking helpers: recordImport(), isAlreadyImported(), getImportedIds() in apps/journal/app/lib/sync/imports.server.ts
• 1.7 Add WAHOO_CLIENT_ID and WAHOO_CLIENT_SECRET to infrastructure/secrets.app.env via SOPS
• 1.8 Run pnpm db:push to apply schema changes

2. Wahoo Provider Implementation

• 2.1 Create apps/journal/app/lib/sync/providers/wahoo.ts implementing SyncProvider
• 2.2 Implement getAuthUrl() with scopes workouts_read, user_read, offline_data
• 2.3 Implement exchangeCode() and refreshToken() using Wahoo's OAuth endpoints
• 2.4 Implement listWorkouts() with pagination (Wahoo's GET /v1/workouts)
• 2.5 Implement downloadFile() to fetch FIT file from Wahoo CDN
• 2.6 Implement parseWebhook() to extract workout info from workout_summary payload

3. FIT → GPX Conversion

• 3.1 Add fit-file-parser dependency
• 3.2 Implement convertToGpx() in Wahoo provider: parse FIT, extract track records, convert semicircles to degrees, generate GPX via generateGpx
• 3.3 Handle indoor workouts (no GPS) — return null GPX, create activity with stats only

4. OAuth Routes

• 4.1 Create apps/journal/app/routes/api.sync.connect.$provider.ts — generates auth URL from provider, redirects
• 4.2 Create apps/journal/app/routes/api.sync.callback.$provider.ts — exchanges code, stores tokens, redirects to settings
• 4.3 Create apps/journal/app/routes/api.sync.disconnect.$provider.ts — deletes connection
• 4.4 Register routes in apps/journal/app/routes.ts

5. Webhook Route

• 5.1 Create apps/journal/app/routes/api.sync.webhook.$provider.ts — receives webhook, looks up user, downloads file, converts, creates activity
• 5.2 Verify webhook by matching provider_user_id to a sync_connection
• 5.3 Handle duplicate detection via sync_imports
• 5.4 Register route in routes.ts

6. Import Page

• 6.1 Create apps/journal/app/routes/sync.import.$provider.tsx — lists workouts with import buttons
• 6.2 Show workout date, type, duration, distance per row
• 6.3 Mark already-imported workouts via sync_imports lookup
• 6.4 Import action: download file, convert, create activity, record import
• 6.5 Pagination for workout list
• 6.6 Register route in routes.ts

7. Settings Integration

• 7.1 Add "Connected Services" section to settings page
• 7.2 Iterate over registered providers to show connect/disconnect per provider
• 7.3 Show connection status and link to import page when connected

8. i18n

• 8.1 Add translation keys for sync UI (en + de): connect/disconnect, import page, webhook status, provider names

9. Testing

• 9.1 Unit test: FIT→GPX conversion with sample FIT data
• 9.2 Unit test: duplicate detection via sync_imports
• 9.3 Unit test: OAuth URL generation and token exchange (mock fetch)
• 9.4 E2E test: settings page shows Connected Services section