A production-ready ASP.NET Core MVC web application used by ship officers and marine surveyors to perform draught survey calculations (estimating cargo quantity on board a vessel).
- ASP.NET Core MVC application deployed on Linux (Nginx + systemd)
- End-to-end workflow: create inspection → input data → validation → calculations → Excel export
- Authentication & authorization:
- ASP.NET Core Identity
- Email confirmation, password recovery
- Roles (User/Admin)
- Admin panel for inspections, statistics, and feedback management
- Responsive and mobile-friendly design
- Server-side data validation & consistency
- Reuse of vessel master data between inspections (LBP, light ship, draft marks distances, etc.)
- Hydrostatic tables per vessel (IMO): import/store and reuse for future inspections
- Excel export using reusable templates (public/private) for reporting and printing
- Deployed and running in production
Backend / Web
- ASP.NET Core MVC
- ASP.NET Core Identity + Roles
- Entity Framework Core (Code First, migrations)
- PostgreSQL
Frontend
- Razor Views (MVC)
- Server-side validation with domain rules
- Bootstrap-based responsive layout
Infrastructure / Deployment
- Linux server deployment
- Nginx reverse proxy
- Email delivery: SendGrid
DraughtSurveyWebApp/
├─ DraughtSurveyWebApp/ # ASP.NET Core MVC application
│
│ ├─ Areas/ # Feature-based areas
│ │ └─ Identity/ # ASP.NET Core Identity UI (auth, profile, login)
│
│ ├─ Controllers/ # MVC controllers (thin, orchestration layer)
│ │ ├─ Admin/ # Admin-only controllers
│ │ │ ├─ FeedbackAdminController.cs
│ │ │ └─ StatsController.cs
│ │ │
│ │ ├─ AboutController.cs
│ │ ├─ ApplicationUsersController.cs
│ │ ├─ CargoInputController.cs
│ │ ├─ ContactController.cs
│ │ ├─ DeductiblesInputController.cs
│ │ ├─ DraughtsInputController.cs
│ │ ├─ DraughtSurveyBlockController.cs # Core survey block logic
│ │ ├─ ExcelTemplateController.cs # Excel templates CRUD
│ │ ├─ GalleryController.cs
│ │ ├─ HomeController.cs
│ │ ├─ HydrostaticInputController.cs
│ │ ├─ HydrostaticTablesController.cs # Hydrostatic tables management
│ │ ├─ InspectionsController.cs # Inspections lifecycle
│ │ └─ VesselInputController.cs
│
│ ├─ Data/ # Persistence & bootstrapping
│ │ ├─ ApplicationDbContext.cs # EF Core DbContext (PostgreSQL)
│ │ └─ DbInitializer.cs # Migrations + roles/admin seeding
│
│ ├─ Interfaces/ # Abstractions
│ │ ├─ IEmailSender.cs
│ │ ├─ IImageService.cs
│ │ └─ IRepository.cs # Generic repository abstraction
│
│ ├─ Mappings/ # Mapping layer
│ │ └─ MappingProfile.cs # DTO/ViewModel ↔ Entity mappings
│
│ ├─ Middleware/ # Custom pipeline extensions
│ │ └─ SessionTrackingMiddleware.cs # User session tracking
│
│ ├─ Models/ # Domain & persistence models
│ │ ├─ ApplicationUser.cs # Identity user
│ │ ├─ Inspection.cs
│ │ ├─ DraughtSurveyBlock.cs # Central aggregate root
│ │ ├─ CargoInput.cs
│ │ ├─ CargoResult.cs
│ │ ├─ DeductiblesInput.cs
│ │ ├─ DeductiblesResults.cs
│ │ ├─ DraughtsInput.cs
│ │ ├─ DraughtsResults.cs
│ │ ├─ HydrostaticInput.cs
│ │ ├─ HydrostaticResults.cs
│ │ ├─ UserHydrostaticTableHeader.cs
│ │ ├─ UserHydrostaticTableRow.cs
│ │ ├─ ExcelTemplate.cs
│ │ ├─ ExcelExportLog.cs
│ │ ├─ FeedbackTicket.cs
│ │ ├─ Remarks.cs
│ │ ├─ UserSession.cs
│ │ ├─ VesselInput.cs
│ │ ├─ EmailOptions.cs
│ │ ├─ SendGridOptions.cs
│ │ ├─ SmtpSettings.cs
│ │ └─ ErrorViewModel.cs
│
│ ├─ Services/ # Business & infrastructure services
│ │ ├─ SurveyCalculationsService.cs # Draught survey calculations
│ │ ├─ Repository.cs # EF Core repository implementation
│ │ ├─ ImageService.cs # Image storage / gallery logic
│ │ ├─ ExcelExportMapper.cs # Mapping entities → Excel export
│ │ ├─ ExcelTemplateFiller.cs # Filling Excel templates
│ │ ├─ SendGridEmailSender.cs
│ │ └─ SmtpEmailSender.cs
│
│ ├─ Utils/ # Helpers
│ │ └─ Utils.cs
│
│ ├─ ViewModels/ # MVC ViewModels
│ │ ├─ CargoInputViewModel.cs
│ │ ├─ DeductiblesInputViewModel.cs
│ │ ├─ DraughtsInputViewModel.cs
│ │ ├─ HydrostaticInputViewModel.cs
│ │ ├─ InspectionCreateViewModel.cs
│ │ ├─ InspectionEditViewModel.cs
│ │ ├─ EditSurveyTimesViewModel.cs
│ │ ├─ ExcelTemplateCreateViewModel.cs
│ │ ├─ ExcelTemplateSelectViewModel.cs
│ │ ├─ ExcelTemplateUserSelectTemplate.cs
│ │ ├─ FeedbackTicketViewModel.cs
│ │ └─ VesselInputViewModel.cs
│
│ ├─ Views/ # Razor UI
│ │ ├─ About/
│ │ ├─ ApplicationUsers/
│ │ ├─ CargoInput/
│ │ ├─ Contact/
│ │ ├─ DeductiblesInput/
│ │ ├─ DraughtsInput/
│ │ ├─ DraughtSurveyBlock/
│ │ ├─ ExcelTemplate/
│ │ ├─ FeedbackAdmin/
│ │ ├─ Gallery/
│ │ ├─ Home/
│ │ ├─ HydrostaticInput/
│ │ ├─ HydrostaticTables/
│ │ ├─ Inspections/
│ │ ├─ Stats/
│ │ ├─ VesselInput/
│ │ └─ Shared/
│ │ ├─ _Layout.cshtml
│ │ ├─ _LoginPartial.cshtml
│ │ ├─ _ValidationScriptsPartial.cshtml
│ │ └─ Error.cshtml
│
│ ├─ wwwroot/ # Static assets
│ │ ├─ css/
│ │ ├─ js/
│ │ ├─ lib/
│ │ ├─ images/
│ │ │ ├─ home/
│ │ │ ├─ gallery/
│ │ │ └─ og/
│ │ ├─ favicon.svg
│ │ ├─ robots.txt
│ │ └─ sitemap.xml
│
│ ├─ appdata/ # Runtime data (DataProtection keys, etc.)
│
│ ├─ Migrations/ # EF Core migrations
│ ├─ appsettings.json
│ ├─ appsettings.Development.json
│ ├─ appsettings.Production.json
│ ├─ Program.cs # DI configuration & middleware pipeline
│ └─ ScaffoldingReadMe.txt
│
└─ DraughtSurveyWebApp.Tests/ # Test project
This is a live, deployed, and actively used web application, built as a practical tool for ship officers and marine surveyors to perform draught survey inspections and cargo quantity calculations in real operational conditions.