Break down the 1300+ line Exchange page into smaller, focused components:
- Create useExchangePrice hook
- Handles price fetching and auto-refresh logic
- Manages price loading and error states
- Centralizes price-related state management
- Create useAvailableSlots hook
- Manages slot fetching and availability checking
- Handles date availability state
- Fetches availability when entering booking/confirmation steps
- Create PriceDisplay component
- Displays market price, agreed price, and premium
- Shows price update timestamp and stale warnings
- Handles loading and error states
- Create ExchangeDetailsStep component
- Step 1 of wizard: direction, payment method, amount selection
- Contains all form logic for trade details
- Validates and displays trade summary
- Create BookingStep component
- Step 2 of wizard: date and slot selection
- Shows trade summary card
- Handles date availability and existing trade warnings
- Create ConfirmationStep component
- Step 3 of wizard: final confirmation
- Shows compressed booking summary
- Displays all trade details for review
- Create StepIndicator component
- Visual indicator of current wizard step
- Shows completed and active steps
- Refactor ExchangePage
- Reduced from 1300+ lines to ~350 lines
- Uses new hooks and components
- Maintains all existing functionality
- Improved maintainability and testability
All frontend tests pass. Linting passes.
