# Requirements: Weekly ToDo List with Calendar Integration

**Defined:** 2026-01-24
**Core Value:** Provide users with a streamlined, unified view of their weekly tasks and calendar events that is faster and easier to use than traditional to-do list and calendar applications combined.

## v1 Requirements

### Core Functionality
- [ ] **CORE-01**: User can view tasks and events in a weekly calendar view
- [ ] **CORE-02**: User can add tasks to specific days within the weekly view
- [ ] **CORE-03**: User can edit existing tasks (change title, date, description)
- [ ] **CORE-04**: User can delete tasks from the weekly view
- [ ] **CORE-05**: User can mark tasks as complete/incomplete
- [ ] **CORE-06**: User can navigate between weeks using previous/next buttons
- [ ] **CORE-07**: User can switch between day and week views
- [ ] **CORE-08**: User can drag and drop tasks between days to reorganize them
- [ ] **CORE-09**: User can persist tasks locally in the browser
- [ ] **CORE-10**: User can define how many days are displayed from one till fourteen
- [ ] **CORE-11**: User can move the days/weeks left and right to see the past and the Future tasks

### Calendar Integration
- [ ] **CAL-01**: User can connect their Google Calendar account to the application
- [ ] **CAL-02**: User can connect their Apple Calendar account to the application
- [ ] **CAL-03**: Connected calendar events appear alongside user tasks in the weekly view
- [ ] **CAL-04**: User can view details of calendar events in the weekly view
- [ ] **CAL-05**: User can filter to show/hide calendar events in the view

### User Experience
- [ ] **UX-01**: Application has a clean, minimalist interface similar to TeuxDeux
- [ ] **UX-02**: Application is responsive and works well on desktop and tablet
- [ ] **UX-03**: Tasks are visually distinct from calendar events
- [ ] **UX-04**: Intuitive workflow for adding and editing tasks
- [ ] **UX-05**: Clear visual indication of completed tasks

## v2 Requirements

### Advanced Task Management
- [ ] **ADV-01**: User can create recurring tasks (daily, weekly, monthly)
- [ ] **ADV-02**: User can assign categories/tags to tasks
- [ ] **ADV-03**: User can set reminders for specific tasks
- [ ] **ADV-04**: User can prioritize tasks (high, medium, low)
- [ ] **ADV-05**: User can add descriptions and notes to tasks

### Calendar Features
- [ ] **CAL-06**: User can create new calendar events directly from the application
- [ ] **CAL-07**: User can edit existing calendar events from the application
- [ ] **CAL-08**: User can delete calendar events from the application
- [ ] **CAL-09**: User can set reminders for calendar events

### Data Management
- [ ] **DATA-01**: User can export tasks to a CSV or JSON file
- [ ] **DATA-02**: User can import tasks from a CSV or JSON file
- [ ] **DATA-03**: User can backup their data manually
- [ ] **DATA-04**: User can restore their data from a backup

## Out of Scope

| Feature | Reason |
|---------|--------|
| Multi-user collaboration | Focus on single-user experience for initial release |
| Email notifications | Simplified for MVP, focus on in-app notifications |
| Advanced reporting | Complex analytics beyond MVP scope |
| Mobile application | Web-first approach for initial release |
| Offline functionality | Requires complex sync mechanisms beyond MVP |
| Rich text formatting | Text-only descriptions for simplicity |
| Advanced filtering | Basic filtering by date and status for MVP |

## Traceability

| Requirement | Phase | Status |
|-------------|-------|--------|
| CORE-01 | Phase 1 | Pending |
| CORE-02 | Phase 1 | Pending |
| CORE-03 | Phase 1 | Pending |
| CORE-04 | Phase 1 | Pending |
| CORE-05 | Phase 1 | Pending |
| CORE-06 | Phase 1 | Pending |
| CORE-07 | Phase 1 | Pending |
| CORE-08 | Phase 1 | Pending |
| CORE-09 | Phase 1 | Pending |
| CORE-10 | Phase 1 | Pending |
| CORE-11 | Phase 1 | Pending |
| CAL-01 | Phase 3 | Pending |
| CAL-02 | Phase 3 | Pending |
| CAL-03 | Phase 3 | Pending |
| CAL-04 | Phase 3 | Pending |
| CAL-05 | Phase 3 | Pending |
| UX-01 | Phase 2 | Pending |
| UX-02 | Phase 2 | Pending |
| UX-03 | Phase 2 | Pending |
| UX-04 | Phase 2 | Pending |
| UX-05 | Phase 2 | Pending |
| ADV-01 | Phase 2 | Pending |
| ADV-02 | Phase 2 | Pending |
| ADV-03 | Phase 2 | Pending |
| ADV-04 | Phase 2 | Pending |
| ADV-05 | Phase 2 | Pending |
| CAL-06 | Phase 4 | Pending |
| CAL-07 | Phase 4 | Pending |
| CAL-08 | Phase 4 | Pending |
| CAL-09 | Phase 4 | Pending |
| DATA-01 | Phase 4 | Pending |
| DATA-02 | Phase 4 | Pending |
| DATA-03 | Phase 4 | Pending |
| DATA-04 | Phase 4 | Pending |

**Coverage:**
- v1 requirements: 29 total
- Mapped to phases: 29
- Unmapped: 0 ✓

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*Requirements defined: 2026-01-24*
*Last updated: 2026-01-24 after initial definition*
