1. Print area management UI & backend (a42a00d):

   • Built a full stack for managing print areas (think “where the design goes” on a shirt front or back). This includes models to store print area dimensions, controllers to handle CRUD ops, and RESTful routes to tie it all together.
   • The frontend now lets users drag/drop to define print zones with responsive positioning (position: absolute + transform: scale to handle dynamic sizing).
   • Edge case: Products with multiple print areas (e.g., front + back) now render distinct configurations without clobbering state.

2. Printful service & stock syncing (7b5d817):

   • Added printful_id to product models to map Issued products to Printful’s inventory.
   • UI updates to display Printful sync status (green checkmarks for success, red alerts for failures).

Technical tangents

The print area system was a slow make. For example:

• To ensure designs stay within printable bounds, I had to calculate dynamic margins based on product type (e.g., a hoodie’s print area ≠ a mug’s). This involved hacking some trigonometry into the frontend to snap selections to “safe zones.”
• On the backend, I’m using ActiveRecord callbacks to validate print area dimensions against product specs. If a user tries to set a print area wider than the product allows It raises a PrintAreaOutOfBounds error

Future features

The actual ship flow and being able to edit multiple print areas instead of just the one