# Feature Specification: GlowTrack — Mood & Habit Wellbeing Grid

**Feature Branch**: `001-glowtrack-a-mood`
**Created**: 18 September 2025
**Status**: Draft
**Input**: User description: "GlowTrack — a mood and habit tracker that transforms daily inputs into a vibrant wellbeing grid. Each tile in the grid represents a day, glowing brighter as positive habits are built and dimming or distorting when negative habits are logged. The goal is to make personal growth feel rewarding, visual, and artistic, rather than like a clinical spreadsheet. Unlike typical habit apps that only encourage building routines, GlowTrack also supports tracking bad habits users want to reduce or quit. This makes the grid an honest reflection of both struggles and progress: good habits make the day shine, while harmful ones visibly dull the pattern. Over time, users see their grid evolve into a mosaic of resilience, balance, and self-improvement. The emphasis is on keeping GlowTrack lightweight, private, and beautiful. It should work directly in the browser as a PWA, require no accounts or servers, and let users export/share their wellbeing grids as personal artwork. The focus is motivation through aesthetics — turning daily check-ins into a canvas of personal growth."

## Execution Flow (main)
```
1. Parse user description from Input
	→ If empty: ERROR "No feature description provided"
2. Extract key concepts from description
	→ Identify: actors, actions, data, constraints
3. For each unclear aspect:
	→ Mark with [NEEDS CLARIFICATION: specific question]
4. Fill User Scenarios & Testing section
	→ If no clear user flow: ERROR "Cannot determine user scenarios"
5. Generate Functional Requirements
	→ Each requirement must be testable
	→ Mark ambiguous requirements
6. Identify Key Entities (if data involved)
7. Run Review Checklist
	→ If any [NEEDS CLARIFICATION]: WARN "Spec has uncertainties"
	→ If implementation details found: ERROR "Remove tech details"
8. Return: SUCCESS (spec ready for planning)
```

---

## User Scenarios & Testing

### Primary User Story
A user opens GlowTrack in their browser and is greeted by a visually engaging grid representing their days. Each day, the user logs both positive and negative habits. As positive habits are built, the corresponding day's tile glows brighter; negative habits cause the tile to dim or distort. Over time, the user sees their grid evolve into a unique mosaic reflecting both their struggles and progress. The user can export or share their grid as personal artwork, all without creating an account or sharing data with a server.

### Acceptance Scenarios
1. **Given** a new user, **When** they open GlowTrack, **Then** they see an empty wellbeing grid ready for input.
2. **Given** a day in the grid, **When** the user logs a positive habit, **Then** the tile glows brighter.
3. **Given** a day in the grid, **When** the user logs a negative habit, **Then** the tile dims or distorts.
4. **Given** a completed grid, **When** the user chooses to export/share, **Then** the grid is saved as personal artwork.
5. **Given** a user, **When** they use GlowTrack, **Then** no account or server interaction is required.

### Edge Cases
- What happens if a user logs both positive and negative habits for the same day?
Conflicting habits in a single tile: The tile uses mood as the base hue. Glow intensity is based on the net habit score, where positive habits add glow and negative habits reduce it. Negative habits also add a subtle static overlay. Small glyphs indicate counts (ticks for positives, dots for negatives). Mood hue always remains clear, with overlays only affecting luminance or texture.
- How does the system handle days with no input?
a dim square.
- What if the user wants to edit or delete a habit entry?
allow editing.
- How is privacy maintained if the user shares their grid?
Export formats: Export is supported as PNG in screen resolution (suitable for sharing and wallpaper use), the user is responsible by whom he shares their grid, and is not hosted on any invasive servers.

## Requirements

### Functional Requirements
- **FR-001**: System MUST allow users to log both positive and negative habits for each day.
- **FR-002**: System MUST visually represent each day as a tile in a grid, with brightness and distortion reflecting habit quality.
- **FR-003**: Users MUST be able to export/share their wellbeing grid as personal artwork.
- **FR-004**: System MUST operate fully in-browser as a PWA, with no account or server required.
- **FR-005**: System MUST ensure user data is private and stored locally.
- **FR-006**: System MUST allow users to edit or delete habit entries for any day.
- **FR-007**: System MUST allow users to customize which habits are tracked.
- **FR-008**: System MUST provide a visually engaging, artistic interface for motivation.
- **FR-009**: System MUST allow users to reset or clear their grid if desired.
- **FR-010**: System MUST allow users to view their progress over time as a mosaic.
- **FR-011**: System MUST support offline usage.
- **FR-012**: System MUST allow users to select which days to display (e.g., week, month, year).
- **FR-013**: System MUST provide guidance or onboarding for first-time users.
- **FR-014**: System MUST allow users to share their grid without exposing personal habit details. Sharing is limited to JSON export. Users can back up, move, or import their full data through this format. No images or public links are generated automatically.

### Key Entities
- **DayTile**: Represents a single day in the grid; attributes include date, brightness, distortion, and habit entries.
- **HabitEntry**: Represents a logged habit; attributes include type (positive/negative), description, and timestamp.
- **WellbeingGrid**: Represents the user's overall grid; attributes include collection of DayTiles, export status, and visual style.

---

## Review & Acceptance Checklist

### Content Quality
- [x] No implementation details (languages, frameworks, APIs)
- [x] Focused on user value and business needs
- [x] Written for non-technical stakeholders
- [x] All mandatory sections completed

### Requirement Completeness
- [x] No [NEEDS CLARIFICATION] markers remain
- [x] Requirements are testable and unambiguous
- [x] Success criteria are measurable
- [x] Scope is clearly bounded
- [x] Dependencies and assumptions identified

---

## Execution Status

- [x] User description parsed
- [x] Key concepts extracted
- [x] Ambiguities marked
- [x] User scenarios defined
- [x] Requirements generated
- [x] Entities identified
- [x] Review checklist passed
- [ ] Review checklist passed