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Timer System Feature Specification

Overview

The timer system is the core functionality of Pomo Vibes, providing users with a visual and functional countdown timer for Pomodoro sessions.

Related Issues

Feature Components

1. Countdown Timer Display

Visual Requirements:

  • Round/circular timer display prominently centered
  • Large, readable numbers showing time in MM:SS format
  • High contrast text for accessibility
  • Responsive sizing across devices

Functional Requirements:

  • Default duration: 20 minutes (20:00)
  • Counts down to 00:00
  • Updates every second with smooth transitions
  • Maintains accuracy during pause/resume cycles

2. Circular Progress Bar

Visual Requirements:

  • Surrounds the timer display
  • Animated progress indication
  • Smooth visual transition as time decreases
  • Color coordination with selected emotional state

Functional Requirements:

  • Represents percentage of time remaining
  • Updates in real-time with timer countdown
  • Resets appropriately when timer is reset
  • Maintains visual consistency during pause states

3. Timer Controls

Play/Pause Button:

  • Functionality:
    • Start timer from stopped/paused state
    • Pause timer when currently running
    • Toggle between play ▶️ and pause ⏸️ icons
  • Visual Design:
    • Clearly distinguishable icons
    • Accessible button sizing
    • Visual feedback on interaction

Reset Button:

  • Functionality:
    • Immediately reset timer to default duration (20:00 or custom setting)
    • Works regardless of current timer state
    • Resets progress bar to full
  • Visual Design:
    • Reset/reload icon 🔄
    • Distinct from play/pause button
    • Confirmation not required for immediate reset

4. Settings System

Settings Access:

  • Cog wheel icon ⚙️ for settings access
  • Non-intrusive placement that doesn't interfere with timer
  • Accessible but secondary to main timer controls

Duration Adjustment Dialog:

  • Interface Elements:
    • Modal dialog overlay
    • Clear title and instructions
    • Increment/decrement controls for minutes
    • Direct input field with validation
    • Apply and Cancel buttons
  • Validation Rules:
    • Minimum duration: 5 minutes
    • Maximum duration: 60 minutes
    • Input validation with user-friendly error messages
    • Default value restoration on invalid input

Settings Persistence:

  • Custom duration settings persist across app sessions
  • Changes apply to future timer sessions
  • Current running timer not affected unless user confirms reset

User Experience Flow

Starting a Session

  1. User sees default 20:00 timer (or custom duration if set)
  2. User optionally selects emotional state via emotoji
  3. User clicks play button to start countdown
  4. Timer begins countdown with progress bar animation

During a Session

  1. User can pause/resume timer as needed
  2. User can reset timer to restart session
  3. Visual progress feedback via progress bar and countdown
  4. Background adapts to selected emotional state

Ending a Session

  1. Timer reaches 00:00
  2. Session completion indication (visual/audio feedback)
  3. Timer ready for next session

Customizing Timer

  1. User clicks settings cog
  2. Duration adjustment dialog appears
  3. User modifies timer duration within valid range
  4. Settings apply to subsequent sessions

Technical Considerations

Performance Requirements

  • Smooth animation at 60fps for progress bar
  • Accurate timing with minimal drift
  • Responsive interface interactions
  • Efficient state management

Accessibility Requirements

  • Keyboard navigation support
  • Screen reader compatibility
  • High contrast mode support
  • Touch-friendly interactive elements

Integration Points

  • Coordinates with emotional state system for visual theming
  • Integrates with background image system
  • Maintains state consistency across all app features

Success Criteria

  • Timer accurately counts down from set duration to zero
  • Visual feedback is smooth and engaging
  • Controls are intuitive and responsive
  • Settings persist appropriately across sessions
  • User can easily customize and control their focus sessions