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✅ Day 5 Sprint Plan – Modularization, Error Handling, and Mobile UX

📅 Date: (Tomorrow)

🧩 Sprint Goal:

Improve code maintainability by modularizing key features, enhance user feedback for invalid URLs, and start adapting the layout for mobile devices.

🔧 1. Refactor Into Modules

Goal: Improve maintainability and separation of concerns.

Tasks:

• [ ] Move create_card, handleRefresh, delete_card, and modal-related logic into separate JS files.
• [ ] Create a central utils.js for shared helpers like:
  • validateURL(url)
  • showToast(message, type)
• [ ] Use named exports/imports to load only what’s needed per file.

Outcome: Each functionality (refresh, delete, modal, etc.) should have its own clearly defined file.

⚠️ 2. Add URL Error Handling

Goal: Stop interval polling if a URL returns an error like 404 or fails to respond.

Tasks:

• [x] Enhance fetch logic to:
  • Catch failed requests (network issues, 404s, 500s).
  • Display an alert or inline warning in the card.
  • Disable refresh interval for failed URLs.
• [ ] Validate the URL once when user clicks “Apply”.
  • [ ] If invalid, don’t update interval or card state.
  • [ ] Show a red-colored toast or modal error: “URL unreachable. Please check and try again.”