Aditya-fix: resolve tool stoppage reason data loading error with comprehensive improvements

[Aditya-gam]

Description

This PR Fixes - BM Dashboard "Reason of Stoppage of Tools" data loading error

This PR implements comprehensive improvements to the BM Dashboard 'Reason of Stoppage of Tools' feature to fix critical data loading errors and enhance overall robustness, performance, and maintainability. The implementation addresses the high-priority issue where the section fails to load data and displays "Failed to load projects. Please try again."

The changes include error tracking with Sentry integration, comprehensive input validation, database indexing for performance optimization, intelligent response caching to reduce server load, structured API responses with metadata and timing information, MongoDB connection error handling with appropriate HTTP status codes, and consistent error response formatting across all endpoints.

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Related PRs (if any):

• Old PRs: PR #3780 + PR #1550
• Frontend PR: PR #4396

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Main changes explained:

Updated Files:

src/controllers/bmdashboard/bmToolStoppageReasonController.js

• Core Functionality:
  • Replaced console.error with Logger.logException() for Sentry integration
  • Implemented date parsing helpers: parseYmdUtc() and parseDateFlexibleUTC() supporting YYYY-MM-DD and ISO 8601 formats
  • Added buildDateFilter() helper to eliminate code duplication
  • Integrated nodeCache with 5-minute TTL for project list endpoint
  • Returns structured responses: { success, data, count, message, executionTimeMs, cached? }
  • Logs slow queries (>1000ms) to Sentry for optimization
  • Distinguishes MongoDB connection errors (503 with retry: true) from query failures (500)
• Validation:
  • Date format and range validation (endDate >= startDate)
  • Project existence check (returns 404 for non-existent projects)
  • Note: ObjectId format validation handled by express-validator in router
• Endpoints:
  1. GET /api/bm/projects/:id/tools-stoppage-reason?startDate&endDate - Tool stoppage data with optional date filtering
  2. GET /api/bm/tools-stoppage-reason/projects - Cached project list (5-min TTL)

src/routes/bmdashboard/bmToolStoppageReasonRouter.js

• Validation Middleware:
  • Uses express-validator for type-safe validation
  • Validates projectId as MongoDB ObjectId
  • Validates optional date parameters (YYYY-MM-DD or ISO 8601 format)
  • Returns structured 400 errors: { success: false, errors: [...], message: "Validation failed" }

src/models/bmdashboard/buildingToolsStoppage.js

• Schema:
  • Fields: projectId (ObjectId ref), toolName, usedForLifetime, damaged, lost, date
  • Collection: toolStoppageReason
• Indexes:
  • Compound index: { projectId: 1, date: 1 } for efficient querying
  • Single index: { toolName: 1 } for sorting optimization

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How to test:

1. Check into current branch: Aditya-fix/tool-stoppage-reason-improvements

2. Reinstall dependencies and clean cache using rm -rf node_modules package-lock.json && npm cache clean --force

3. Run npm install to install dependencies, then start the backend locally (npm start or npm run dev)

4. Test endpoints (using Postman/curl with JWT token in Authorization header):

   • Tool Stoppage Data:
     • GET /api/bm/projects/<projectId>/tools-stoppage-reason → Returns all tool stoppage data for project
     • GET /api/bm/projects/<projectId>/tools-stoppage-reason?startDate=2024-01-01&endDate=2024-12-31 → Filters by date range
     • GET /api/bm/projects/invalid-id/tools-stoppage-reason → Returns 400 validation error
     • GET /api/bm/projects/<nonExistentId>/tools-stoppage-reason → Returns 404 not found
     • GET /api/bm/projects/<projectId>/tools-stoppage-reason?startDate=2024-12-31&endDate=2024-01-01 → Returns 400 invalid date range error
   • Project List:
     • GET /api/bm/tools-stoppage-reason/projects → Returns all projects with tool stoppage data (first call: cached=false, ~120ms)
     • GET /api/bm/tools-stoppage-reason/projects → Second call within 5 minutes (cached=true, ~2-5ms)

5. Verify:

   • Response format: { success, data, count, message, executionTimeMs, cached? }
   • Data sorted by date (ascending), then toolName (alphabetically)
   • Invalid inputs return 400 with structured error messages
   • Non-existent projects return 404
   • Empty results include a helpful message
   • Cache hit shows dramatically faster executionTimeMs
   • MongoDB connection errors return 503 with retry: true
   • executionTimeMs included in all responses (success and error)

6. Frontend Integration (coordinate with PR #):

   • Navigate to BM Dashboard → "Reason of Stoppage of Tools"
   • Verify project dropdown populates from /projects endpoint
   • Test chart loading with date filters
   • Verify error handling and dark mode compatibility

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Screenshots or videos of changes:

• Light Mode:

• Dark Mode:

• Test Video:

TestVideo.mov

See frontend PR for:

• Chart component consuming structured data
• Error message displays
• Loading states and cache indicators

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Note:

• Response format changed from raw array to structured object.
  • Old: [{projectId, projectName}, ...]
  • New: { success, data: [{projectId, projectName}, ...], count, message, executionTimeMs, cached? }
  • Frontend must access response.data instead of response directly
• Database Changes:
  • Compound: { projectId: 1, date: 1 } - 50-80% query performance improvement
  • Single: { toolName: 1 } - optimizes sorting

[RitzzzZ2021]

Tested APIs locally using Postman and the results are as expected. Correct data is returned when sending valid requests. The error messages are clear when requests are invalid.

GET /api/bm/projects//tools-stoppage-reason

GET /api/bm/projects//tools-stoppage-reason?startDate=2024-01-01&endDate=2024-12-31

GET /api/bm/projects/invalid-id/tools-stoppage-reason

GET /api/bm/projects//tools-stoppage-reason?startDate=2024-12-31&endDate=2024-01-01

Also, the cache greatly reducing the data fetching time.

GET /api/bm/tools-stoppage-reason/projects
first call: 28ms

second call: 4ms

[Anusha-Gali]

Hi Aditya,

I have reviewed your PR locally and the backend works as per requirement.