PriceUpdaterAppv2/.kiro/specs/scheduled-price-updates/tasks.md

Implementation Plan

• 1. Create ScheduleService with core scheduling functionality

  • Implement datetime parsing and validation methods
  • Add delay calculation logic for scheduling operations
  • Create countdown display functionality with user-friendly formatting
  • Requirements: 1.1, 1.4, 4.1, 4.2, 4.3

• 2. Implement scheduling wait logic with cancellation support

  • Add waitUntilScheduledTime method with Promise-based timing
  • Implement graceful cancellation handling during wait period
  • Create status display updates during countdown period
  • Requirements: 2.2, 3.1, 3.2

• 3. Update environment configuration to support scheduling

  • Add SCHEDULED_EXECUTION_TIME as optional environment variable to loadEnvironmentConfig
  • Implement validation logic for datetime format when scheduling is provided
  • Ensure backward compatibility when scheduling parameter is not set
  • Requirements: 1.1, 4.1, 4.2, 4.3, 4.4

• 4. Integrate scheduling into main application flow

  • Modify main execution function to check for scheduled execution time
  • Add scheduling confirmation display before entering wait period
  • Implement scheduled operation execution with existing ShopifyPriceUpdater logic
  • Requirements: 1.2, 2.1, 2.3

• 5. Enhance signal handlers for scheduled operation cancellation

  • Update SIGINT and SIGTERM handlers to support cancellation during wait period
  • Add clear cancellation confirmation messages for scheduled operations
  • Ensure cancellation does not interrupt operations once price updates begin
  • Requirements: 3.1, 3.2, 3.3

• 6. Add comprehensive error handling for scheduling scenarios

  • Implement error handling for invalid datetime formats with clear messages
  • Add validation for past datetime values with helpful error messages
  • Create warning system for distant future dates (>7 days)
  • Requirements: 1.4, 4.3, 4.4

• 7. Update .env.example with scheduling configuration

  • Add SCHEDULED_EXECUTION_TIME example with proper ISO 8601 format
  • Include comments explaining scheduling functionality and format requirements
  • Provide examples for different timezone specifications
  • Requirements: 4.1, 4.2

• 8. Implement logging integration for scheduled operations

  • Add scheduling event logging to existing Logger class methods
  • Log scheduling confirmation, countdown updates, and execution start
  • Integrate scheduled operation context into existing error logging
  • Requirements: 2.1, 2.3, 5.3, 5.4

• 9. Create unit tests for ScheduleService functionality

  • Write tests for datetime parsing with various valid and invalid formats
  • Test delay calculation accuracy and edge cases
  • Create tests for cancellation handling during wait periods
  • Requirements: 1.1, 1.4, 3.1, 4.1, 4.2, 4.3

• 10. Write integration tests for scheduled execution workflow

  • Test complete scheduling workflow with both update and rollback modes
  • Create tests for cancellation scenarios during countdown period
  • Verify backward compatibility when scheduling is not used
  • Requirements: 1.2, 2.1, 3.1, 3.2, 5.1, 5.2

• 11. Add error handling tests for scheduling edge cases

  • Test invalid datetime format handling with clear error messages
  • Create tests for past datetime validation and error responses
  • Test system behavior with distant future dates and warning display
  • Requirements: 1.4, 4.3, 4.4, 5.3

• 12. Update package.json scripts for scheduled operations

  • Add npm scripts for common scheduling scenarios (e.g., schedule-update, schedule-rollback)
  • Include examples in script comments for typical scheduling use cases
  • Ensure existing scripts continue to work without scheduling
  • Requirements: 1.1, 1.2