Refactor Error Handling, Classroom Management, and Socket Integration for Improved Readability and Maintainability

[martin-markovic]

Summary

This PR introduces several key improvements across the codebase, focusing on enhancing error handling for Redux slices and services, refining classroom management logic, and better organizing socket event management. The updates improve code readability, maintainability, and the clarity of functions' purposes, ensuring that components utilizing the chat context in Dashboard.jsx operate smoothly.

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Changes

• Error Handling Enhancements:

  • Renamed service.errorHandler.js to redux.errorHandler.js to reflect its broader application.
  • Added handleServiceError and handleSliceError functions for handling errors in service functions and Redux slices, respectively.
  • Integrated handleServiceError into service functions in classroomService.js and chatService.js.
  • Integrated handleSliceError into functions in classroomSlice.js.

• Socket Event Management:

  • Implemented handleSocketEvents for managing socket event listeners, focusing on handling the newMessage and chatOpen events.
  • The function dispatches sendMessage when a new message is received and dispatches updateMessageStatus to mark messages as read when a chat is opened.
  • Added error handling for null socket instances.
  • Moved the initSocket function from chatContext to a new socketManager.js module to improve code organization.

• Classroom Management:

  • Returned classroom ID on successful joinClassroom requests in classroomController.js.
  • Renamed getClassrooms to getAllClassrooms in classroomController.js for clarity.
  • Implemented getUserClassrooms in classroomController.js to fetch classrooms specific to the authenticated user.
  • Integrated getAllClassrooms and getUserClassrooms into their respective API endpoints in classroomRoutes.js.

• Chat Context Refactor:

  • Moved ChatProvider integration from Chat.jsx to Dashboard.jsx, enabling components in Dashboard to utilize chat context.
  • Added selectedChat and setSelectedChat to the contextValue for better state management within the chat context.
  • Integrated useDispatch, initSocket, and handleSocketEvents into chatContext.js for managing socket connections.

• Codebase Cleanup:

  • Removed unnecessary ChatProvider integration from Chat.jsx for cleaner code.
  • Improved code readability and separation of concerns across modules, particularly in socket management and classroom handling.