HabitForge/walkthrough_date_nav.md

Date Navigation Feature - Walkthrough

We have implemented a Date Navigation feature for the Health Dashboard, allowing you to explore historical health data.

Features Added

1. Date Navigator UI:

   • Added Previous (<) and Next (>) arrow buttons.
   • Added a central Date Display text (e.g., "Today", "Dec 21", "Dec 20 - Dec 26").
   • Responsive design: Visible on both mobile and desktop.
   • Styled with TailwindCSS for a clean, professional look consistent with the existing theme.

2. Navigation Logic:

   • Day View: Moves back/forward by 1 day.
   • Week View: Moves back/forward by 7 days.
   • Month View: Moves back/forward by 1 month.
   • The Date Display updates dynamically to reflect the current period.

3. Backend Updates:

   • Updated /api/health/stats endpoint to accept a ref_date parameter.
   • Modified database queries to filtering data between(start, end) based on the selected reference date.
   • This ensures you can view past weeks and months accurately.

4. UX Improvements:

   • Empty State Handling: If you navigate to a date with no data, the dashboard fields reset to -- placeholders instead of showing stale data from the previous view.
   • Loading Feedback: Existing toast notifications indicate if data loading fails.

How to Verification

1. Open the Health Dashboard.
2. You should see the new Date Navigator explicitly to the left of the "Day/Week/Month" toggle.
3. Click < to go back in time. The data (steps, sleep, heart rate, etc.) should update.
4. Switch to "Week" view. The date text should show a range (e.g., "Dec 15 - Dec 21").
5. Click > to return to recent dates. "Today" will be displayed when you are back to the current date.