add companies management

src/Application/Aircrafts/AircraftDto.cs

@@ -13,11 +13,16 @@ public sealed class AircraftDto : IMapFrom<Aircraft>
 
     public short Capacity { get; set; }
 
+    public Guid CompanyUuid { get; set; }
+
     public void Mapping(MappingProfile profile)
     {
         profile.CreateMap<Aircraft, AircraftDto>()
             .ForMember(
                 d => d.Uuid,
-                opt => opt.MapFrom(s => s.Guid));
+                opt => opt.MapFrom(s => s.Guid))
+            .ForMember(
+                d => d.CompanyUuid,
+                opt => opt.MapFrom(s => s.Company.Guid));
     }
 }

src/Application/Aircrafts/Commands/AddAircraft/AddAircraftCommand.cs

@@ -9,4 +9,6 @@ public record AddAircraftCommand : IRequest<AircraftDto>
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyGuid { get; set; }
 }

src/Application/Aircrafts/Commands/AddAircraft/AddAircraftCommandHandler.cs

@@ -33,11 +33,23 @@ public class AddAircraftCommandHandler :
                 "Aircraft with given number already exists.");
         }
 
+        var parentEntity = await _unitOfWork.CompanyRepository.GetOneAsync(
+            e => e.Guid == request.CompanyGuid, cancellationToken);
+
+        if (parentEntity == null)
+        {
+            throw new NotFoundException(
+                $"Parent entity with Guid: {request.CompanyGuid} not found.");
+        }
+
+
         entity = new Aircraft()
         {
             Number = request.Number,
             Model = request.Model,
-            Capacity = request.Capacity
+            Capacity = request.Capacity,
+            CompanyId = parentEntity.Id,
+            Company = parentEntity
         };
 
         entity = await _unitOfWork.AircraftRepository.AddOneAsync(

src/Application/Aircrafts/Commands/AddAircraft/AddAircraftCommandValidator.cs

@@ -33,5 +33,9 @@ public class AddAircraftCommandValidator : AbstractValidator<AddAircraftCommand>
         RuleFor(v => v.Capacity)
             .NotEmpty()
             .WithMessage(localizer["FluentValidation.NotEmpty"]);
+
+        RuleFor(v => v.CompanyGuid)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"]);
     }
 }

src/Application/Aircrafts/Commands/UpdateAircraft/UpdateAircraftCommand.cs

@@ -11,4 +11,6 @@ public record UpdateAircraftCommand : IRequest<AircraftDto>
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyGuid { get; set; }
 }

src/Application/Aircrafts/Commands/UpdateAircraft/UpdateAircraftCommandHandler.cs

@@ -32,7 +32,7 @@ public class UpdateAircraftCommandHandler :
         }
 
         var duplicateEntity = await _unitOfWork.AircraftRepository.GetOneAsync(
-            e => e.Number == request.Number,
+            e => e.Number == request.Number && e.Guid != request.Guid,
             cancellationToken);
 
         if (duplicateEntity != null)
@@ -41,9 +41,20 @@ public class UpdateAircraftCommandHandler :
                 "Aircraft with given number already exists.");
         }
 
+        var parentEntity = await _unitOfWork.CompanyRepository.GetOneAsync(
+            e => e.Guid == request.CompanyGuid, cancellationToken);
+
+        if (parentEntity == null)
+        {
+            throw new NotFoundException(
+                $"Parent entity with Guid: {request.CompanyGuid} not found.");
+        }
+
         entity.Number = request.Number;
         entity.Model = request.Model;
         entity.Capacity = request.Capacity;
+        entity.CompanyId = parentEntity.Id;
+        entity.Company = parentEntity;
 
         entity = await _unitOfWork.AircraftRepository.UpdateOneAsync(
             entity, cancellationToken);

src/Application/Aircrafts/Commands/UpdateAircraft/UpdateAircraftCommandValidator.cs

@@ -37,5 +37,9 @@ public class UpdateAircraftCommandValidator : AbstractValidator<UpdateAircraftCo
         RuleFor(v => v.Capacity)
             .NotEmpty()
             .WithMessage(localizer["FluentValidation.NotEmpty"]);
+
+        RuleFor(v => v.CompanyGuid)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"]);
     }
 }

src/Application/Aircrafts/Queries/GetAircraft/GetAircraftQueryHandler.cs

@@ -24,7 +24,8 @@ public class GetAircraftQueryHandler :
         CancellationToken cancellationToken)
     {
         var entity = await _unitOfWork.AircraftRepository.GetOneAsync(
-            e => e.Guid == request.Guid, cancellationToken);
+            e => e.Guid == request.Guid, e => e.Company,
+            cancellationToken);
 
         _unitOfWork.Dispose();
 

src/Application/Aircrafts/Queries/GetAircraftsPage/GetAircraftsPageQuery.cs

@@ -13,11 +13,9 @@ public record GetAircraftsPageQuery : IRequest<PaginatedList<AircraftDto>>
 
     public string Sort { get; set; } = String.Empty;
 
-    public string? Number { get; set; }
+    public Guid? CompanyGuid { get; set; }
 
-    public string? Model { get; set; }
+    public short? CapacityGreaterThanOrEqualTo { get; set; }
 
-    public short? CapacityGreaterOrEqualThan { get; set; }
-
-    public short? CapacityLessOrEqualThan { get; set; }
+    public short? CapacityLessThanOrEqualTo { get; set; }
 }

src/Application/Aircrafts/Queries/GetAircraftsPage/GetAircraftsPageQueryHandler.cs

@@ -28,12 +28,16 @@ public class GetAircraftsPageQueryHandler :
             e =>
                 (e.Number.ToLower().Contains(request.Search.ToLower()) ||
                 e.Model.ToLower().Contains(request.Search.ToLower())) &&
-                (request.CapacityGreaterOrEqualThan != null
-                    ? e.Capacity >= request.CapacityGreaterOrEqualThan
+                (request.CompanyGuid != null
+                    ? e.Company.Guid == request.CompanyGuid
                     : true) &&
-                (request.CapacityLessOrEqualThan != null
-                    ? e.Capacity <= request.CapacityLessOrEqualThan
+                (request.CapacityGreaterThanOrEqualTo != null
+                    ? e.Capacity >= request.CapacityGreaterThanOrEqualTo
+                    : true) &&
+                (request.CapacityLessThanOrEqualTo != null
+                    ? e.Capacity <= request.CapacityLessThanOrEqualTo
                     : true),
+            e => e.Company,
             request.PageNumber, request.PageSize,
             cancellationToken);
 

src/Application/Aircrafts/ViewModels/AddAircraftViewModel.cs

@@ -7,4 +7,6 @@ public sealed class AddAircraftViewModel
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyUuid { get; set; }
 }

src/Application/Aircrafts/ViewModels/GetAircraftsPageFilterViewModel.cs

@@ -2,14 +2,12 @@ namespace cuqmbr.TravelGuide.Application.Aircrafts.ViewModels;
 
 public sealed class GetAircraftsPageFilterViewModel
 {
-    public string? Number { get; set; }
-
-    public string? Model { get; set; }
+    public Guid? CompanyUuid { get; set; }
 
     // TODO: Consider adding strict equals rule although it is not
     // necessarily needed to filter with exact capacity 
 
-    public short? CapacityGreaterOrEqualThan { get; set; }
+    public short? CapacityGreaterThanOrEqualTo { get; set; }
 
-    public short? CapacityLessOrEqualThan { get; set; }
+    public short? CapacityLessThanOrEqualTo { get; set; }
 }

src/Application/Aircrafts/ViewModels/UpdateAircraftViewModel.cs

@@ -7,4 +7,6 @@ public sealed class UpdateAircraftViewModel
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyUuid { get; set; }
 }

src/Application/Buses/BusDto.cs

@@ -13,11 +13,16 @@ public sealed class BusDto : IMapFrom<Bus>
 
     public short Capacity { get; set; }
 
+    public Guid CompanyUuid { get; set; }
+
     public void Mapping(MappingProfile profile)
     {
         profile.CreateMap<Bus, BusDto>()
             .ForMember(
                 d => d.Uuid,
-                opt => opt.MapFrom(s => s.Guid));
+                opt => opt.MapFrom(s => s.Guid))
+            .ForMember(
+                d => d.CompanyUuid,
+                opt => opt.MapFrom(s => s.Company.Guid));
     }
 }

src/Application/Buses/Commands/AddBus/AddBusCommand.cs

@@ -9,4 +9,6 @@ public record AddBusCommand : IRequest<BusDto>
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyGuid { get; set; }
 }

src/Application/Buses/Commands/AddBus/AddBusCommandHandler.cs

@@ -33,11 +33,22 @@ public class AddBusCommandHandler :
                 "Bus with given number already exists.");
         }
 
+        var parentEntity = await _unitOfWork.CompanyRepository.GetOneAsync(
+            e => e.Guid == request.CompanyGuid, cancellationToken);
+
+        if (parentEntity == null)
+        {
+            throw new NotFoundException(
+                $"Parent entity with Guid: {request.CompanyGuid} not found.");
+        }
+
         entity = new Bus()
         {
             Number = request.Number,
             Model = request.Model,
-            Capacity = request.Capacity
+            Capacity = request.Capacity,
+            CompanyId = parentEntity.Id,
+            Company = parentEntity
         };
 
         entity = await _unitOfWork.BusRepository.AddOneAsync(

src/Application/Buses/Commands/AddBus/AddBusCommandValidator.cs

@@ -33,5 +33,9 @@ public class AddBusCommandValidator : AbstractValidator<AddBusCommand>
         RuleFor(v => v.Capacity)
             .NotEmpty()
             .WithMessage(localizer["FluentValidation.NotEmpty"]);
+
+        RuleFor(v => v.CompanyGuid)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"]);
     }
 }

src/Application/Buses/Commands/UpdateBus/UpdateBusCommand.cs

@@ -11,4 +11,6 @@ public record UpdateBusCommand : IRequest<BusDto>
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyGuid { get; set; }
 }

src/Application/Buses/Commands/UpdateBus/UpdateBusCommandHandler.cs

@@ -32,7 +32,7 @@ public class UpdateBusCommandHandler :
         }
 
         var duplicateEntity = await _unitOfWork.BusRepository.GetOneAsync(
-            e => e.Number == request.Number,
+            e => e.Number == request.Number && e.Guid != request.Guid,
             cancellationToken);
 
         if (duplicateEntity != null)
@@ -41,9 +41,20 @@ public class UpdateBusCommandHandler :
                 "Bus with given number already exists.");
         }
 
+        var parentEntity = await _unitOfWork.CompanyRepository.GetOneAsync(
+            e => e.Guid == request.CompanyGuid, cancellationToken);
+
+        if (parentEntity == null)
+        {
+            throw new NotFoundException(
+                $"Parent entity with Guid: {request.CompanyGuid} not found.");
+        }
+
         entity.Number = request.Number;
         entity.Model = request.Model;
         entity.Capacity = request.Capacity;
+        entity.CompanyId = parentEntity.Id;
+        entity.Company = parentEntity;
 
         entity = await _unitOfWork.BusRepository.UpdateOneAsync(
             entity, cancellationToken);

src/Application/Buses/Commands/UpdateBus/UpdateBusCommandValidator.cs

@@ -37,5 +37,9 @@ public class UpdateBusCommandValidator : AbstractValidator<UpdateBusCommand>
         RuleFor(v => v.Capacity)
             .NotEmpty()
             .WithMessage(localizer["FluentValidation.NotEmpty"]);
+
+        RuleFor(v => v.CompanyGuid)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"]);
     }
 }

src/Application/Buses/Queries/GetBus/GetBusQueryHandler.cs

@@ -24,7 +24,8 @@ public class GetBusQueryHandler :
         CancellationToken cancellationToken)
     {
         var entity = await _unitOfWork.BusRepository.GetOneAsync(
-            e => e.Guid == request.Guid, cancellationToken);
+            e => e.Guid == request.Guid, e => e.Company,
+            cancellationToken);
 
         _unitOfWork.Dispose();
 

src/Application/Buses/Queries/GetBusesPage/GetBusesPageQuery.cs

@@ -13,11 +13,9 @@ public record GetBusesPageQuery : IRequest<PaginatedList<BusDto>>
 
     public string Sort { get; set; } = String.Empty;
 
-    public string? Number { get; set; }
+    public Guid? CompanyGuid { get; set; }
 
-    public string? Model { get; set; }
+    public short? CapacityGreaterThanOrEqualTo { get; set; }
 
-    public short? CapacityGreaterOrEqualThan { get; set; }
-
-    public short? CapacityLessOrEqualThan { get; set; }
+    public short? CapacityLessThanOrEqualTo { get; set; }
 }

src/Application/Buses/Queries/GetBusesPage/GetBusesPageQueryHandler.cs

@@ -28,12 +28,16 @@ public class GetBusesPageQueryHandler :
             e =>
                 (e.Number.ToLower().Contains(request.Search.ToLower()) ||
                 e.Model.ToLower().Contains(request.Search.ToLower())) &&
-                (request.CapacityGreaterOrEqualThan != null
-                    ? e.Capacity >= request.CapacityGreaterOrEqualThan
+                (request.CompanyGuid != null
+                    ? e.Company.Guid == request.CompanyGuid
                     : true) &&
-                (request.CapacityLessOrEqualThan != null
-                    ? e.Capacity <= request.CapacityLessOrEqualThan
+                (request.CapacityGreaterThanOrEqualTo != null
+                    ? e.Capacity >= request.CapacityGreaterThanOrEqualTo
+                    : true) &&
+                (request.CapacityLessThanOrEqualTo != null
+                    ? e.Capacity <= request.CapacityLessThanOrEqualTo
                     : true),
+            e => e.Company,
             request.PageNumber, request.PageSize,
             cancellationToken);
 

src/Application/Buses/ViewModels/AddBusViewModel.cs

@@ -7,4 +7,6 @@ public sealed class AddBusViewModel
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyUuid { get; set; }
 }

src/Application/Buses/ViewModels/GetBusesPageFilterViewModel.cs

@@ -2,14 +2,9 @@ namespace cuqmbr.TravelGuide.Application.Buses.ViewModels;
 
 public sealed class GetBusesPageFilterViewModel
 {
-    public string? Number { get; set; }
+    public Guid? CompanyUuid { get; set; }
 
-    public string? Model { get; set; }
+    public short? CapacityGreaterThanOrEqualTo { get; set; }
 
-    // TODO: Consider adding strict equals rule although it is not
-    // necessarily needed to filter with exact capacity 
-
-    public short? CapacityGreaterOrEqualThan { get; set; }
-
-    public short? CapacityLessOrEqualThan { get; set; }
+    public short? CapacityLessThanOrEqualTo { get; set; }
 }

src/Application/Buses/ViewModels/UpdateBusViewModel.cs

@@ -7,4 +7,6 @@ public sealed class UpdateBusViewModel
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyUuid { get; set; }
 }

src/Application/Common/FluentValidation/CustomValidators.cs

@@ -0,0 +1,24 @@
+using FluentValidation;
+
+namespace cuqmbr.TravelGuide.Application.Common.FluentValidation;
+
+public static class CustomValidators
+{
+    // According to RFC 5321.
+    public static IRuleBuilderOptions<T, string> IsEmail<T>(
+        this IRuleBuilder<T, string> ruleBuilder)
+    {
+        return
+            ruleBuilder
+                .Matches(@"^[\w\.-]{1,64}@[\w\.-]{1,251}\.\w{2,4}$");
+    }
+
+    // According to ITU-T E.164, no spaces.
+    public static IRuleBuilderOptions<T, string> IsPhoneNumber<T>(
+        this IRuleBuilder<T, string> ruleBuilder)
+    {
+        return
+            ruleBuilder
+                .Matches(@"^\+[0-9]{7,15}$");
+    }
+}

src/Application/Common/Interfaces/Persistence/Repositories/CompanyRepository.cs

@@ -0,0 +1,6 @@
+using cuqmbr.TravelGuide.Domain.Entities;
+
+namespace cuqmbr.TravelGuide.Application.Common.Interfaces
+    .Persistence.Repositories;
+
+public interface CompanyRepository : BaseRepository<Company> { }

src/Application/Common/Interfaces/Persistence/UnitOfWork.cs

@@ -26,6 +26,8 @@ public interface UnitOfWork : IDisposable
 
     RouteAddressRepository RouteAddressRepository { get; }
 
+    CompanyRepository CompanyRepository { get; }
+
     int Save();
 
     Task<int> SaveAsync(CancellationToken cancellationToken);

src/Application/Companies/Commands/AddCompany/AddCompanyCommand.cs

@@ -0,0 +1,14 @@
+using MediatR;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.AddCompany;
+
+public record AddCompanyCommand : IRequest<CompanyDto>
+{
+    public string Name { get; set; }
+
+    public string LegalAddress { get; set; }
+
+    public string ContactEmail { get; set; }
+
+    public string ContactPhoneNumber { get; set; }
+}

src/Application/Companies/Commands/AddCompany/AddCompanyCommandAuthorizer.cs

@@ -0,0 +1,31 @@
+using cuqmbr.TravelGuide.Application.Common.Authorization;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Services;
+using cuqmbr.TravelGuide.Application.Common.Models;
+using MediatR.Behaviors.Authorization;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.AddCompany;
+
+public class AddCompanyCommandAuthorizer :
+    AbstractRequestAuthorizer<AddCompanyCommand>
+{
+    private readonly SessionUserService _sessionUserService;
+
+    public AddCompanyCommandAuthorizer(SessionUserService sessionUserService)
+    {
+        _sessionUserService = sessionUserService;
+    }
+
+    public override void BuildPolicy(AddCompanyCommand request)
+    {
+        UseRequirement(new MustBeAuthenticatedRequirement
+        {
+            IsAuthenticated= _sessionUserService.IsAuthenticated
+        });
+
+        UseRequirement(new MustBeInRolesRequirement
+        {
+            RequiredRoles = [IdentityRole.Administrator],
+            UserRoles = _sessionUserService.Roles
+        });
+    }
+}

src/Application/Companies/Commands/AddCompany/AddCompanyCommandHandler.cs

@@ -0,0 +1,52 @@
+using MediatR;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Persistence;
+using cuqmbr.TravelGuide.Domain.Entities;
+using AutoMapper;
+using cuqmbr.TravelGuide.Application.Common.Exceptions;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.AddCompany;
+
+public class AddCompanyCommandHandler : 
+    IRequestHandler<AddCompanyCommand, CompanyDto>
+{
+    private readonly UnitOfWork _unitOfWork;
+    private readonly IMapper _mapper;
+
+    public AddCompanyCommandHandler(
+        UnitOfWork unitOfWork,
+        IMapper mapper)
+    {
+        _unitOfWork = unitOfWork;
+        _mapper = mapper;
+    }
+
+    public async Task<CompanyDto> Handle(
+        AddCompanyCommand request,
+        CancellationToken cancellationToken)
+    {
+        var entity = await _unitOfWork.CompanyRepository.GetOneAsync(
+            e => e.Name == request.Name, cancellationToken);
+
+        if (entity != null)
+        {
+            throw new DuplicateEntityException(
+                "Company with given name already exists.");
+        }
+
+        entity = new Company()
+        {
+            Name = request.Name,
+            LegalAddress = request.LegalAddress,
+            ContactEmail = request.ContactEmail,
+            ContactPhoneNumber = request.ContactPhoneNumber
+        };
+
+        entity = await _unitOfWork.CompanyRepository.AddOneAsync(
+            entity, cancellationToken);
+
+        await _unitOfWork.SaveAsync(cancellationToken);
+        _unitOfWork.Dispose();
+
+        return _mapper.Map<CompanyDto>(entity);
+    }
+}

src/Application/Companies/Commands/AddCompany/AddCompanyCommandValidator.cs

@@ -0,0 +1,58 @@
+using cuqmbr.TravelGuide.Application.Common.FluentValidation;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Services;
+using FluentValidation;
+using Microsoft.Extensions.Localization;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.AddCompany;
+
+public class AddCompanyCommandValidator : AbstractValidator<AddCompanyCommand>
+{
+    public AddCompanyCommandValidator(
+        IStringLocalizer localizer,
+        SessionCultureService cultureService)
+    {
+        RuleFor(v => v.Name)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"])
+            .MaximumLength(64)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.MaximumLength"],
+                    64));
+
+        RuleFor(v => v.LegalAddress)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"])
+            .MaximumLength(256)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.MaximumLength"],
+                    256));
+
+        RuleFor(v => v.ContactEmail)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"])
+            .IsEmail()
+            .WithMessage(localizer["FluentValidation.IsEmail"])
+            .MaximumLength(256)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.MaximumLength"],
+                    256));
+
+        RuleFor(v => v.ContactPhoneNumber)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"])
+            .IsPhoneNumber()
+            .WithMessage(localizer["FluentValidation.IsPhoneNumber"])
+            .MaximumLength(64)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.MaximumLength"],
+                    64));
+    }
+}

src/Application/Companies/Commands/DeleteCompany/DeleteCompanyCommand.cs

@@ -0,0 +1,8 @@
+using MediatR;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.DeleteCompany;
+
+public record DeleteCompanyCommand : IRequest
+{
+    public Guid Guid { get; set; }
+}

src/Application/Companies/Commands/DeleteCompany/DeleteCompanyCommandAuthorizer.cs

@@ -0,0 +1,31 @@
+using cuqmbr.TravelGuide.Application.Common.Authorization;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Services;
+using cuqmbr.TravelGuide.Application.Common.Models;
+using MediatR.Behaviors.Authorization;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.DeleteCompany;
+
+public class DeleteCompanyCommandAuthorizer :
+    AbstractRequestAuthorizer<DeleteCompanyCommand>
+{
+    private readonly SessionUserService _sessionUserService;
+
+    public DeleteCompanyCommandAuthorizer(SessionUserService sessionUserService)
+    {
+        _sessionUserService = sessionUserService;
+    }
+
+    public override void BuildPolicy(DeleteCompanyCommand request)
+    {
+        UseRequirement(new MustBeAuthenticatedRequirement
+        {
+            IsAuthenticated= _sessionUserService.IsAuthenticated
+        });
+
+        UseRequirement(new MustBeInRolesRequirement
+        {
+            RequiredRoles = [IdentityRole.Administrator],
+            UserRoles = _sessionUserService.Roles
+        });
+    }
+}

src/Application/Companies/Commands/DeleteCompany/DeleteCompanyCommandHandler.cs

@@ -0,0 +1,34 @@
+using MediatR;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Persistence;
+using cuqmbr.TravelGuide.Application.Common.Exceptions;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.DeleteCompany;
+
+public class DeleteCompanyCommandHandler : IRequestHandler<DeleteCompanyCommand>
+{
+    private readonly UnitOfWork _unitOfWork;
+
+    public DeleteCompanyCommandHandler(UnitOfWork unitOfWork)
+    {
+        _unitOfWork = unitOfWork;
+    }
+
+    public async Task Handle(
+        DeleteCompanyCommand request,
+        CancellationToken cancellationToken)
+    {
+        var entity = await _unitOfWork.CompanyRepository.GetOneAsync(
+            e => e.Guid == request.Guid, cancellationToken);
+
+        if (entity == null)
+        {
+            throw new NotFoundException();
+        }
+
+        await _unitOfWork.CompanyRepository.DeleteOneAsync(
+            entity, cancellationToken);
+
+        await _unitOfWork.SaveAsync(cancellationToken);
+        _unitOfWork.Dispose();
+    }
+}

src/Application/Companies/Commands/DeleteCompany/DeleteCompanyCommandValidator.cs

@@ -0,0 +1,14 @@
+using FluentValidation;
+using Microsoft.Extensions.Localization;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.DeleteCompany;
+
+public class DeleteCompanyCommandValidator : AbstractValidator<DeleteCompanyCommand>
+{
+    public DeleteCompanyCommandValidator(IStringLocalizer localizer)
+    {
+        RuleFor(v => v.Guid)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"]);
+    }
+}

src/Application/Companies/Commands/UpdateCompany/UpdateCompanyCommand.cs

@@ -0,0 +1,16 @@
+using MediatR;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.UpdateCompany;
+
+public record UpdateCompanyCommand : IRequest<CompanyDto>
+{
+    public Guid Guid { get; set; }
+
+    public string Name { get; set; }
+
+    public string LegalAddress { get; set; }
+
+    public string ContactEmail { get; set; }
+
+    public string ContactPhoneNumber { get; set; }
+}

src/Application/Companies/Commands/UpdateCompany/UpdateCompanyCommandAuthorizer.cs

@@ -0,0 +1,31 @@
+using cuqmbr.TravelGuide.Application.Common.Authorization;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Services;
+using cuqmbr.TravelGuide.Application.Common.Models;
+using MediatR.Behaviors.Authorization;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.UpdateCompany;
+
+public class UpdateCompanyCommandAuthorizer :
+    AbstractRequestAuthorizer<UpdateCompanyCommand>
+{
+    private readonly SessionUserService _sessionUserService;
+
+    public UpdateCompanyCommandAuthorizer(SessionUserService sessionUserService)
+    {
+        _sessionUserService = sessionUserService;
+    }
+
+    public override void BuildPolicy(UpdateCompanyCommand request)
+    {
+        UseRequirement(new MustBeAuthenticatedRequirement
+        {
+            IsAuthenticated= _sessionUserService.IsAuthenticated
+        });
+
+        UseRequirement(new MustBeInRolesRequirement
+        {
+            RequiredRoles = [IdentityRole.Administrator],
+            UserRoles = _sessionUserService.Roles
+        });
+    }
+}

src/Application/Companies/Commands/UpdateCompany/UpdateCompanyCommandHandler.cs

@@ -0,0 +1,47 @@
+using MediatR;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Persistence;
+using AutoMapper;
+using cuqmbr.TravelGuide.Application.Common.Exceptions;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.UpdateCompany;
+
+public class UpdateCompanyCommandHandler : 
+    IRequestHandler<UpdateCompanyCommand, CompanyDto>
+{
+    private readonly UnitOfWork _unitOfWork;
+    private readonly IMapper _mapper;
+
+    public UpdateCompanyCommandHandler(
+        UnitOfWork unitOfWork,
+        IMapper mapper)
+    {
+        _unitOfWork = unitOfWork;
+        _mapper = mapper;
+    }
+
+    public async Task<CompanyDto> Handle(
+        UpdateCompanyCommand request,
+        CancellationToken cancellationToken)
+    {
+        var entity = await _unitOfWork.CompanyRepository.GetOneAsync(
+            e => e.Guid == request.Guid, cancellationToken);
+
+        if (entity == null)
+        {
+            throw new NotFoundException();
+        }
+
+        entity.Name = request.Name;
+        entity.LegalAddress = request.LegalAddress;
+        entity.ContactEmail = request.ContactEmail;
+        entity.ContactPhoneNumber = request.ContactPhoneNumber;
+
+        entity = await _unitOfWork.CompanyRepository.UpdateOneAsync(
+            entity, cancellationToken);
+
+        await _unitOfWork.SaveAsync(cancellationToken);
+        _unitOfWork.Dispose();
+
+        return _mapper.Map<CompanyDto>(entity);
+    }
+}

src/Application/Companies/Commands/UpdateCompany/UpdateCompanyCommandValidator.cs

@@ -0,0 +1,62 @@
+using cuqmbr.TravelGuide.Application.Common.FluentValidation;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Services;
+using FluentValidation;
+using Microsoft.Extensions.Localization;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Commands.UpdateCompany;
+
+public class UpdateCompanyCommandValidator : AbstractValidator<UpdateCompanyCommand>
+{
+    public UpdateCompanyCommandValidator(
+        IStringLocalizer localizer,
+        SessionCultureService cultureService)
+    {
+        RuleFor(v => v.Guid)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"]);
+
+        RuleFor(v => v.Name)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"])
+            .MaximumLength(64)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.MaximumLength"],
+                    64));
+
+        RuleFor(v => v.LegalAddress)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"])
+            .MaximumLength(256)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.MaximumLength"],
+                    256));
+
+        RuleFor(v => v.ContactEmail)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"])
+            .IsEmail()
+            .WithMessage(localizer["FluentValidation.IsEmail"])
+            .MaximumLength(256)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.MaximumLength"],
+                    256));
+
+        RuleFor(v => v.ContactPhoneNumber)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"])
+            .IsPhoneNumber()
+            .WithMessage(localizer["FluentValidation.IsPhoneNumber"])
+            .MaximumLength(64)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.MaximumLength"],
+                    64));
+    }
+}

src/Application/Companies/CompanyDto.cs

@@ -0,0 +1,25 @@
+using cuqmbr.TravelGuide.Application.Common.Mappings;
+using cuqmbr.TravelGuide.Domain.Entities;
+
+namespace cuqmbr.TravelGuide.Application.Companies;
+
+public sealed class CompanyDto : IMapFrom<Company>
+{
+    public Guid Uuid { get; set; }
+
+    public string Name { get; set; }
+
+    public string LegalAddress { get; set; }
+
+    public string ContactEmail { get; set; }
+
+    public string ContactPhoneNumber { get; set; }
+
+    public void Mapping(MappingProfile profile)
+    {
+        profile.CreateMap<Company, CompanyDto>()
+            .ForMember(
+                d => d.Uuid,
+                opt => opt.MapFrom(s => s.Guid));
+    }
+}

src/Application/Companies/Queries/GetCompaniesPage/GetCompaniesPageQuery.cs

@@ -0,0 +1,15 @@
+using cuqmbr.TravelGuide.Application.Common.Models;
+using MediatR;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Queries.GetCompaniesPage;
+
+public record GetCompaniesPageQuery : IRequest<PaginatedList<CompanyDto>>
+{
+    public int PageNumber { get; set; } = 1;
+
+    public int PageSize { get; set; } = 10;
+
+    public string Search { get; set; } = String.Empty;
+
+    public string Sort { get; set; } = String.Empty;
+}

src/Application/Companies/Queries/GetCompaniesPage/GetCompaniesPageQueryAuthorizer.cs

@@ -0,0 +1,31 @@
+using cuqmbr.TravelGuide.Application.Common.Authorization;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Services;
+using cuqmbr.TravelGuide.Application.Common.Models;
+using MediatR.Behaviors.Authorization;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Queries.GetCompaniesPage;
+
+public class GetCompaniesPageQueryAuthorizer :
+    AbstractRequestAuthorizer<GetCompaniesPageQuery>
+{
+    private readonly SessionUserService _sessionUserService;
+
+    public GetCompaniesPageQueryAuthorizer(SessionUserService sessionUserService)
+    {
+        _sessionUserService = sessionUserService;
+    }
+
+    public override void BuildPolicy(GetCompaniesPageQuery request)
+    {
+        UseRequirement(new MustBeAuthenticatedRequirement
+        {
+            IsAuthenticated= _sessionUserService.IsAuthenticated
+        });
+
+        UseRequirement(new MustBeInRolesRequirement
+        {
+            RequiredRoles = [IdentityRole.Administrator],
+            UserRoles = _sessionUserService.Roles
+        });
+    }
+}

src/Application/Companies/Queries/GetCompaniesPage/GetCompaniesPageQueryHandler.cs

@@ -0,0 +1,49 @@
+using MediatR;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Persistence;
+using AutoMapper;
+using cuqmbr.TravelGuide.Application.Common.Models;
+using cuqmbr.TravelGuide.Application.Common.Extensions;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Queries.GetCompaniesPage;
+
+public class GetCompaniesPageQueryHandler :
+    IRequestHandler<GetCompaniesPageQuery, PaginatedList<CompanyDto>>
+{
+    private readonly UnitOfWork _unitOfWork;
+    private readonly IMapper _mapper;
+
+    public GetCompaniesPageQueryHandler(
+        UnitOfWork unitOfWork,
+        IMapper mapper)
+    {
+        _unitOfWork = unitOfWork;
+        _mapper = mapper;
+    }
+
+    public async Task<PaginatedList<CompanyDto>> Handle(
+        GetCompaniesPageQuery request,
+        CancellationToken cancellationToken)
+    {
+        var paginatedList = await _unitOfWork.CompanyRepository.GetPageAsync(
+            e =>
+                e.Name.ToLower().Contains(request.Search.ToLower()) ||
+                e.LegalAddress.ToLower().Contains(request.Search.ToLower()) ||
+                e.ContactEmail.ToLower().Contains(request.Search.ToLower()) ||
+                e.ContactPhoneNumber.ToLower().Contains(request.Search.ToLower()),
+            request.PageNumber, request.PageSize,
+            cancellationToken);
+
+        var mappedItems = _mapper
+            .ProjectTo<CompanyDto>(paginatedList.Items.AsQueryable());
+
+        mappedItems = QueryableExtension<CompanyDto>
+            .ApplySort(mappedItems, request.Sort);
+
+        _unitOfWork.Dispose();
+
+        return new PaginatedList<CompanyDto>(
+            mappedItems.ToList(),
+            paginatedList.TotalCount, request.PageNumber,
+            request.PageSize);
+    }
+}

src/Application/Companies/Queries/GetCompaniesPage/GetCompaniesPageQueryValidator.cs

@@ -0,0 +1,43 @@
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Services;
+using FluentValidation;
+using Microsoft.Extensions.Localization;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Queries.GetCompaniesPage;
+
+public class GetCompaniesPageQueryValidator : AbstractValidator<GetCompaniesPageQuery>
+{
+    public GetCompaniesPageQueryValidator(
+        IStringLocalizer localizer,
+        SessionCultureService cultureService)
+    {
+        RuleFor(v => v.PageNumber)
+            .GreaterThanOrEqualTo(1)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.GreaterThanOrEqualTo"],
+                    1));
+
+        RuleFor(v => v.PageSize)
+            .GreaterThanOrEqualTo(1)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.GreaterThanOrEqualTo"],
+                    1))
+            .LessThanOrEqualTo(50)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.LessThanOrEqualTo"],
+                    50));
+
+        RuleFor(v => v.Search)
+            .MaximumLength(64)
+            .WithMessage(
+                String.Format(
+                    cultureService.Culture,
+                    localizer["FluentValidation.MaximumLength"],
+                    64));
+    }
+}

src/Application/Companies/Queries/GetCompany/GetCompanyQuery.cs

@@ -0,0 +1,8 @@
+using MediatR;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Queries.GetCompany;
+
+public record GetCompanyQuery : IRequest<CompanyDto>
+{
+    public Guid Guid { get; set; }
+}

src/Application/Companies/Queries/GetCompany/GetCompanyQueryAuthorizer.cs

@@ -0,0 +1,31 @@
+using cuqmbr.TravelGuide.Application.Common.Authorization;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Services;
+using cuqmbr.TravelGuide.Application.Common.Models;
+using MediatR.Behaviors.Authorization;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Queries.GetCompany;
+
+public class GetCompanyQueryAuthorizer :
+    AbstractRequestAuthorizer<GetCompanyQuery>
+{
+    private readonly SessionUserService _sessionUserService;
+
+    public GetCompanyQueryAuthorizer(SessionUserService sessionUserService)
+    {
+        _sessionUserService = sessionUserService;
+    }
+
+    public override void BuildPolicy(GetCompanyQuery request)
+    {
+        UseRequirement(new MustBeAuthenticatedRequirement
+        {
+            IsAuthenticated= _sessionUserService.IsAuthenticated
+        });
+
+        UseRequirement(new MustBeInRolesRequirement
+        {
+            RequiredRoles = [IdentityRole.Administrator],
+            UserRoles = _sessionUserService.Roles
+        });
+    }
+}

src/Application/Companies/Queries/GetCompany/GetCompanyQueryHandler.cs

@@ -0,0 +1,38 @@
+using MediatR;
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Persistence;
+using cuqmbr.TravelGuide.Application.Common.Exceptions;
+using AutoMapper;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Queries.GetCompany;
+
+public class GetCompanyQueryHandler :
+    IRequestHandler<GetCompanyQuery, CompanyDto>
+{
+    private readonly UnitOfWork _unitOfWork;
+    private readonly IMapper _mapper;
+
+    public GetCompanyQueryHandler(
+        UnitOfWork unitOfWork,
+        IMapper mapper)
+    {
+        _unitOfWork = unitOfWork;
+        _mapper = mapper;
+    }
+
+    public async Task<CompanyDto> Handle(
+        GetCompanyQuery request,
+        CancellationToken cancellationToken)
+    {
+        var entity = await _unitOfWork.CompanyRepository.GetOneAsync(
+            e => e.Guid == request.Guid, cancellationToken);
+
+        _unitOfWork.Dispose();
+
+        if (entity == null)
+        {
+            throw new NotFoundException();
+        }
+
+        return _mapper.Map<CompanyDto>(entity);
+    }
+}

src/Application/Companies/Queries/GetCompany/GetCompanyQueryValidator.cs

@@ -0,0 +1,14 @@
+using FluentValidation;
+using Microsoft.Extensions.Localization;
+
+namespace cuqmbr.TravelGuide.Application.Companies.Queries.GetCompany;
+
+public class GetCompanyQueryValidator : AbstractValidator<GetCompanyQuery>
+{
+    public GetCompanyQueryValidator(IStringLocalizer localizer)
+    {
+        RuleFor(v => v.Guid)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"]);
+    }
+}

src/Application/Companies/ViewModels/AddCompanyViewModel.cs

@@ -0,0 +1,12 @@
+namespace cuqmbr.TravelGuide.Application.Companies.ViewModels;
+
+public sealed class AddCompanyViewModel
+{
+    public string Name { get; set; }
+
+    public string LegalAddress { get; set; }
+
+    public string ContactEmail { get; set; }
+
+    public string ContactPhoneNumber { get; set; }
+}

src/Application/Companies/ViewModels/UpdateCompanyViewModel.cs

@@ -0,0 +1,12 @@
+namespace cuqmbr.TravelGuide.Application.Companies.ViewModels;
+
+public sealed class UpdateCompanyViewModel
+{
+    public string Name { get; set; }
+
+    public string LegalAddress { get; set; }
+
+    public string ContactEmail { get; set; }
+
+    public string ContactPhoneNumber { get; set; }
+}

src/Application/Resources/Localization/en-US.json

@@ -4,7 +4,9 @@
     "NotEmpty": "Must not be empty.",
     "GreaterThanOrEqualTo": "Must be greater than or equal to {0:G}.",
     "LessThanOrEqualTo": "Must be less than or equal to {0:G}.",
-    "MustBeInEnum": "Must be one of the following: {0}."
+    "MustBeInEnum": "Must be one of the following: {0}.",
+    "IsEmail": "Must be a valid email address according to RFC 5321.",
+    "IsPhoneNumber": "Must be a valid phone number according to ITU-T E.164 with no separator characters."
   },
   "Validation": {
     "DistinctOrder": "Must have distinct order values.",

src/Application/Trains/Commands/AddTrain/AddTrainCommand.cs

@@ -9,4 +9,6 @@ public record AddTrainCommand : IRequest<TrainDto>
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyGuid { get; set; }
 }

src/Application/Trains/Commands/AddTrain/AddTrainCommandHandler.cs

@@ -33,11 +33,22 @@ public class AddTrainCommandHandler :
                 "Train with given number already exists.");
         }
 
+        var parentEntity = await _unitOfWork.CompanyRepository.GetOneAsync(
+            e => e.Guid == request.CompanyGuid, cancellationToken);
+
+        if (parentEntity == null)
+        {
+            throw new NotFoundException(
+                $"Parent entity with Guid: {request.CompanyGuid} not found.");
+        }
+
         entity = new Train()
         {
             Number = request.Number,
             Model = request.Model,
-            Capacity = request.Capacity
+            Capacity = request.Capacity,
+            CompanyId = parentEntity.Id,
+            Company = parentEntity
         };
 
         entity = await _unitOfWork.TrainRepository.AddOneAsync(

src/Application/Trains/Commands/AddTrain/AddTrainCommandValidator.cs

@@ -33,5 +33,9 @@ public class AddTrainCommandValidator : AbstractValidator<AddTrainCommand>
         RuleFor(v => v.Capacity)
             .NotEmpty()
             .WithMessage(localizer["FluentValidation.NotEmpty"]);
+
+        RuleFor(v => v.CompanyGuid)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"]);
     }
 }

src/Application/Trains/Commands/UpdateTrain/UpdateTrainCommand.cs

@@ -11,4 +11,6 @@ public record UpdateTrainCommand : IRequest<TrainDto>
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyGuid { get; set; }
 }

src/Application/Trains/Commands/UpdateTrain/UpdateTrainCommandHandler.cs

@@ -32,7 +32,7 @@ public class UpdateTrainCommandHandler :
         }
 
         var duplicateEntity = await _unitOfWork.TrainRepository.GetOneAsync(
-            e => e.Number == request.Number,
+            e => e.Number == request.Number && e.Guid != request.Guid,
             cancellationToken);
 
         if (duplicateEntity != null)
@@ -41,9 +41,20 @@ public class UpdateTrainCommandHandler :
                 "Train with given number already exists.");
         }
 
+        var parentEntity = await _unitOfWork.CompanyRepository.GetOneAsync(
+            e => e.Guid == request.CompanyGuid, cancellationToken);
+
+        if (parentEntity == null)
+        {
+            throw new NotFoundException(
+                $"Parent entity with Guid: {request.CompanyGuid} not found.");
+        }
+
         entity.Number = request.Number;
         entity.Model = request.Model;
         entity.Capacity = request.Capacity;
+        entity.CompanyId = parentEntity.Id;
+        entity.Company = parentEntity;
 
         entity = await _unitOfWork.TrainRepository.UpdateOneAsync(
             entity, cancellationToken);

src/Application/Trains/Commands/UpdateTrain/UpdateTrainCommandValidator.cs

@@ -37,5 +37,9 @@ public class UpdateTrainCommandValidator : AbstractValidator<UpdateTrainCommand>
         RuleFor(v => v.Capacity)
             .NotEmpty()
             .WithMessage(localizer["FluentValidation.NotEmpty"]);
+
+        RuleFor(v => v.CompanyGuid)
+            .NotEmpty()
+            .WithMessage(localizer["FluentValidation.NotEmpty"]);
     }
 }

src/Application/Trains/Queries/GetTrain/GetTrainQueryHandler.cs

@@ -24,7 +24,8 @@ public class GetTrainQueryHandler :
         CancellationToken cancellationToken)
     {
         var entity = await _unitOfWork.TrainRepository.GetOneAsync(
-            e => e.Guid == request.Guid, cancellationToken);
+            e => e.Guid == request.Guid, e => e.Company,
+            cancellationToken);
 
         _unitOfWork.Dispose();
 

src/Application/Trains/Queries/GetTrainsPage/GetTrainsPageQuery.cs

@@ -13,9 +13,7 @@ public record GetTrainsPageQuery : IRequest<PaginatedList<TrainDto>>
 
     public string Sort { get; set; } = String.Empty;
 
-    public string? Number { get; set; }
-
-    public string? Model { get; set; }
+    public Guid? CompanyGuid { get; set; }
 
     public short? CapacityGreaterOrEqualThan { get; set; }
 

src/Application/Trains/Queries/GetTrainsPage/GetTrainsPageQueryHandler.cs

@@ -28,12 +28,16 @@ public class GetTrainsPageQueryHandler :
             e =>
                 (e.Number.ToLower().Contains(request.Search.ToLower()) ||
                 e.Model.ToLower().Contains(request.Search.ToLower())) &&
+                (request.CompanyGuid != null
+                    ? e.Company.Guid == request.CompanyGuid
+                    : true) &&
                 (request.CapacityGreaterOrEqualThan != null
                     ? e.Capacity >= request.CapacityGreaterOrEqualThan
                     : true) &&
                 (request.CapacityLessOrEqualThan != null
                     ? e.Capacity <= request.CapacityLessOrEqualThan
                     : true),
+            e => e.Company,
             request.PageNumber, request.PageSize,
             cancellationToken);
 

src/Application/Trains/TrainDto.cs

@@ -13,11 +13,16 @@ public sealed class TrainDto : IMapFrom<Train>
 
     public short Capacity { get; set; }
 
+    public Guid CompanyUuid { get; set; }
+
     public void Mapping(MappingProfile profile)
     {
         profile.CreateMap<Train, TrainDto>()
             .ForMember(
                 d => d.Uuid,
-                opt => opt.MapFrom(s => s.Guid));
+                opt => opt.MapFrom(s => s.Guid))
+            .ForMember(
+                d => d.CompanyUuid,
+                opt => opt.MapFrom(s => s.Company.Guid));
     }
 }

src/Application/Trains/ViewModels/AddTrainViewModel.cs

@@ -7,4 +7,6 @@ public sealed class AddTrainViewModel
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyUuid { get; set; }
 }

src/Application/Trains/ViewModels/GetTrainsPageFilterViewModel.cs

@@ -2,14 +2,12 @@ namespace cuqmbr.TravelGuide.Application.Trains.ViewModels;
 
 public sealed class GetTrainsPageFilterViewModel
 {
-    public string? Number { get; set; }
-
-    public string? Model { get; set; }
-
     // TODO: Consider adding strict equals rule although it is not
     // necessarily needed to filter with exact capacity 
 
-    public short? CapacityGreaterOrEqualThan { get; set; }
+    public Guid? CompanyUuid { get; set; }
 
-    public short? CapacityLessOrEqualThan { get; set; }
+    public short? CapacityGreaterThanOrEqualTo { get; set; }
+
+    public short? CapacityLessThanOrEqualTo { get; set; }
 }

src/Application/Trains/ViewModels/UpdateTrainViewModel.cs

@@ -7,4 +7,6 @@ public sealed class UpdateTrainViewModel
     public string Model { get; set; }
 
     public short Capacity { get; set; }
+
+    public Guid CompanyUuid { get; set; }
 }

src/Domain/Entities/Company.cs

@@ -0,0 +1,15 @@
+namespace cuqmbr.TravelGuide.Domain.Entities;
+
+public sealed class Company : EntityBase
+{
+    public string Name { get; set; }
+
+    public string LegalAddress { get; set; }
+
+    public string ContactEmail { get; set; }
+
+    public string ContactPhoneNumber { get; set; }
+
+
+    public ICollection<Vehicle> Vehicles { get; set; }
+}

src/Domain/Entities/Vehicle.cs

@@ -7,5 +7,10 @@ public abstract class Vehicle : EntityBase
     public VehicleType VehicleType { get; set; }
 
 
+    public long CompanyId { get; set; }
+
+    public Company Company { get; set; }
+
+
     public ICollection<VehicleEnrollment> Enrollments { get; set; }
 }

src/HttpApi/Controllers/AircraftsController.cs

@@ -2,7 +2,6 @@ using Microsoft.AspNetCore.Mvc;
 using Swashbuckle.AspNetCore.Annotations;
 using cuqmbr.TravelGuide.Application.Common.Models;
 using cuqmbr.TravelGuide.Application.Common.ViewModels;
-using cuqmbr.TravelGuide.Domain.Enums;
 using cuqmbr.TravelGuide.Application.Aircrafts;
 using cuqmbr.TravelGuide.Application.Aircrafts.Commands.AddAircraft;
 using cuqmbr.TravelGuide.Application.Aircrafts.Queries.GetAircraftsPage;
@@ -51,7 +50,8 @@ public class AircraftsController : ControllerBase
                 {
                     Number = viewModel.Number,
                     Model = viewModel.Model,
-                    Capacity = viewModel.Capacity
+                    Capacity = viewModel.Capacity,
+                    CompanyGuid = viewModel.CompanyUuid
                 },
                 cancellationToken));
     }
@@ -87,10 +87,11 @@ public class AircraftsController : ControllerBase
                 PageSize = pageQuery.PageSize,
                 Search = searchQuery.Search,
                 Sort = sortQuery.Sort,
-                CapacityGreaterOrEqualThan = 
-                    filterQuery.CapacityGreaterOrEqualThan,
-                CapacityLessOrEqualThan = 
-                    filterQuery.CapacityLessOrEqualThan
+                CompanyGuid = filterQuery.CompanyUuid,
+                CapacityGreaterThanOrEqualTo = 
+                    filterQuery.CapacityGreaterThanOrEqualTo,
+                CapacityLessThanOrEqualTo = 
+                    filterQuery.CapacityLessThanOrEqualTo
             },
             cancellationToken);
     }
@@ -158,7 +159,8 @@ public class AircraftsController : ControllerBase
                     Guid = uuid,
                     Number = viewModel.Number,
                     Model = viewModel.Model,
-                    Capacity = viewModel.Capacity
+                    Capacity = viewModel.Capacity,
+                    CompanyGuid = viewModel.CompanyUuid
                 },
                 cancellationToken);
     }

src/HttpApi/Controllers/BusesController.cs

@@ -2,7 +2,6 @@ using Microsoft.AspNetCore.Mvc;
 using Swashbuckle.AspNetCore.Annotations;
 using cuqmbr.TravelGuide.Application.Common.Models;
 using cuqmbr.TravelGuide.Application.Common.ViewModels;
-using cuqmbr.TravelGuide.Domain.Enums;
 using cuqmbr.TravelGuide.Application.Buses;
 using cuqmbr.TravelGuide.Application.Buses.Commands.AddBus;
 using cuqmbr.TravelGuide.Application.Buses.Queries.GetBusesPage;
@@ -51,7 +50,8 @@ public class BusesController : ControllerBase
                 {
                     Number = viewModel.Number,
                     Model = viewModel.Model,
-                    Capacity = viewModel.Capacity
+                    Capacity = viewModel.Capacity,
+                    CompanyGuid = viewModel.CompanyUuid
                 },
                 cancellationToken));
     }
@@ -87,10 +87,11 @@ public class BusesController : ControllerBase
                 PageSize = pageQuery.PageSize,
                 Search = searchQuery.Search,
                 Sort = sortQuery.Sort,
-                CapacityGreaterOrEqualThan = 
-                    filterQuery.CapacityGreaterOrEqualThan,
-                CapacityLessOrEqualThan = 
-                    filterQuery.CapacityLessOrEqualThan
+                CompanyGuid = filterQuery.CompanyUuid,
+                CapacityGreaterThanOrEqualTo = 
+                    filterQuery.CapacityGreaterThanOrEqualTo,
+                CapacityLessThanOrEqualTo = 
+                    filterQuery.CapacityLessThanOrEqualTo
             },
             cancellationToken);
     }
@@ -158,7 +159,8 @@ public class BusesController : ControllerBase
                     Guid = uuid,
                     Number = viewModel.Number,
                     Model = viewModel.Model,
-                    Capacity = viewModel.Capacity
+                    Capacity = viewModel.Capacity,
+                    CompanyGuid = viewModel.CompanyUuid
                 },
                 cancellationToken);
     }

src/HttpApi/Controllers/CompaniesController.cs

@@ -0,0 +1,190 @@
+using Microsoft.AspNetCore.Mvc;
+using Swashbuckle.AspNetCore.Annotations;
+using cuqmbr.TravelGuide.Application.Common.Models;
+using cuqmbr.TravelGuide.Application.Common.ViewModels;
+using cuqmbr.TravelGuide.Application.Companies;
+using cuqmbr.TravelGuide.Application.Companies.Commands.AddCompany;
+using cuqmbr.TravelGuide.Application.Companies.Queries.GetCompaniesPage;
+using cuqmbr.TravelGuide.Application.Companies.Queries.GetCompany;
+using cuqmbr.TravelGuide.Application.Companies.Commands.UpdateCompany;
+using cuqmbr.TravelGuide.Application.Companies.Commands.DeleteCompany;
+using cuqmbr.TravelGuide.Application.Companies.ViewModels;
+
+namespace cuqmbr.TravelGuide.HttpApi.Controllers;
+
+[Route("companies")]
+public class CompaniesController : ControllerBase
+{
+    [HttpPost]
+    [SwaggerOperation("Add a company")]
+    [SwaggerResponse(
+        StatusCodes.Status201Created, "Object successfuly created",
+        typeof(CompanyDto))]
+    [SwaggerResponse(
+        StatusCodes.Status400BadRequest, "Object already exists",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status400BadRequest, "Input data validation error",
+        typeof(HttpValidationProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status401Unauthorized, "Unauthorized to perform an action",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status403Forbidden,
+        "Not enough privileges to perform an action",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status404NotFound, "Parent object not found",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status500InternalServerError, "Internal server error",
+        typeof(ProblemDetails))]
+    public async Task<ActionResult<CompanyDto>> Add(
+        [FromBody] AddCompanyViewModel viewModel,
+        CancellationToken cancellationToken)
+    {
+        return StatusCode(
+            StatusCodes.Status201Created,
+            await Mediator.Send(
+                new AddCompanyCommand()
+                {
+                    Name = viewModel.Name,
+                    LegalAddress = viewModel.LegalAddress,
+                    ContactEmail = viewModel.ContactEmail,
+                    ContactPhoneNumber = viewModel.ContactPhoneNumber,
+                },
+                cancellationToken));
+    }
+
+    [HttpGet]
+    [SwaggerOperation("Get a list of all companies")]
+    [SwaggerResponse(
+        StatusCodes.Status200OK, "Request successful",
+        typeof(PaginatedList<CompanyDto>))]
+    [SwaggerResponse(
+        StatusCodes.Status400BadRequest, "Input data validation error",
+        typeof(HttpValidationProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status401Unauthorized, "Unauthorized to perform an action",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status403Forbidden,
+        "Not enough privileges to perform an action",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status500InternalServerError, "Internal server error",
+        typeof(ProblemDetails))]
+    public async Task<PaginatedList<CompanyDto>> GetPage(
+        [FromQuery] PageQuery pageQuery, [FromQuery] SearchQuery searchQuery,
+        [FromQuery] SortQuery sortQuery, 
+        CancellationToken cancellationToken)
+    {
+        return await Mediator.Send(
+            new GetCompaniesPageQuery()
+            {
+                PageNumber = pageQuery.PageNumber,
+                PageSize = pageQuery.PageSize,
+                Search = searchQuery.Search,
+                Sort = sortQuery.Sort
+            },
+            cancellationToken);
+    }
+
+    [HttpGet("{uuid:guid}")]
+    [SwaggerOperation("Get a company by uuid")]
+    [SwaggerResponse(
+        StatusCodes.Status200OK, "Request successful", typeof(CompanyDto))]
+    [SwaggerResponse(
+        StatusCodes.Status400BadRequest, "Input data validation error",
+        typeof(HttpValidationProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status401Unauthorized, "Unauthorized to perform an action",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status403Forbidden,
+        "Not enough privileges to perform an action",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status404NotFound, "Object not found", typeof(CompanyDto))]
+    [SwaggerResponse(
+        StatusCodes.Status500InternalServerError, "Internal server error",
+        typeof(ProblemDetails))]
+    public async Task<CompanyDto> Get(
+        [FromRoute] Guid uuid,
+        CancellationToken cancellationToken)
+    {
+        return await Mediator.Send(new GetCompanyQuery() { Guid = uuid },
+            cancellationToken);
+    }
+
+    [HttpPut("{uuid:guid}")]
+    [SwaggerOperation("Update a company")]
+    [SwaggerResponse(
+        StatusCodes.Status200OK, "Request successful", typeof(CompanyDto))]
+    [SwaggerResponse(
+        StatusCodes.Status400BadRequest, "Object already exists",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status400BadRequest, "Input data validation error",
+        typeof(HttpValidationProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status401Unauthorized, "Unauthorized to perform an action",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status403Forbidden,
+        "Not enough privileges to perform an action",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status404NotFound, "Object not found", typeof(CompanyDto))]
+    [SwaggerResponse(
+        StatusCodes.Status404NotFound, "Parent object not found",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status500InternalServerError, "Internal server error",
+        typeof(ProblemDetails))]
+    public async Task<CompanyDto> Update(
+        [FromRoute] Guid uuid,
+        [FromBody] UpdateCompanyViewModel viewModel,
+        CancellationToken cancellationToken)
+    {
+            return await Mediator.Send(
+                new UpdateCompanyCommand()
+                {
+                    Guid = uuid,
+                    Name = viewModel.Name,
+                    LegalAddress = viewModel.LegalAddress,
+                    ContactEmail = viewModel.ContactEmail,
+                    ContactPhoneNumber = viewModel.ContactPhoneNumber,
+                },
+                cancellationToken);
+    }
+
+    [HttpDelete("{uuid:guid}")]
+    [SwaggerOperation("Delete a company")]
+    [SwaggerResponse(StatusCodes.Status204NoContent, "Request successful")]
+    [SwaggerResponse(
+        StatusCodes.Status400BadRequest, "Input data validation error",
+        typeof(HttpValidationProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status401Unauthorized, "Unauthorized to perform an action",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status403Forbidden,
+        "Not enough privileges to perform an action",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status404NotFound, "Object not found",
+        typeof(ProblemDetails))]
+    [SwaggerResponse(
+        StatusCodes.Status500InternalServerError, "Internal server error",
+        typeof(ProblemDetails))]
+    public async Task<IActionResult> Delete(
+        [FromRoute] Guid uuid,
+        CancellationToken cancellationToken)
+    {
+        await Mediator.Send(
+            new DeleteCompanyCommand() { Guid = uuid },
+            cancellationToken);
+        return StatusCode(StatusCodes.Status204NoContent);
+    }
+}

src/HttpApi/Controllers/TrainsController.cs

@@ -88,9 +88,9 @@ public class TrainsController : ControllerBase
                 Search = searchQuery.Search,
                 Sort = sortQuery.Sort,
                 CapacityGreaterOrEqualThan = 
-                    filterQuery.CapacityGreaterOrEqualThan,
+                    filterQuery.CapacityGreaterThanOrEqualTo,
                 CapacityLessOrEqualThan = 
-                    filterQuery.CapacityLessOrEqualThan
+                    filterQuery.CapacityLessThanOrEqualTo
             },
             cancellationToken);
     }

src/Persistence/InMemory/InMemoryUnitOfWork.cs

@@ -26,6 +26,7 @@ public sealed class InMemoryUnitOfWork : UnitOfWork
             new InMemoryVehicleEnrollmentRepository(_dbContext);
         RouteAddressRepository =
             new InMemoryRouteAddressRepository(_dbContext);
+        CompanyRepository = new InMemoryCompanyRepository(_dbContext);
     }
 
     public CountryRepository CountryRepository { get; init; }
@@ -50,6 +51,8 @@ public sealed class InMemoryUnitOfWork : UnitOfWork
 
     public RouteAddressRepository RouteAddressRepository { get; init; }
 
+    public CompanyRepository CompanyRepository { get; init; }
+
     public int Save()
     {
         return _dbContext.SaveChanges();

src/Persistence/InMemory/Repositories/InMemoryCompanyRepository.cs

@@ -0,0 +1,11 @@
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Persistence.Repositories;
+using cuqmbr.TravelGuide.Domain.Entities;
+
+namespace cuqmbr.TravelGuide.Persistence.InMemory.Repositories;
+
+public sealed class InMemoryCompanyRepository :
+    InMemoryBaseRepository<Company>, CompanyRepository
+{
+    public InMemoryCompanyRepository(InMemoryDbContext dbContext)
+        : base(dbContext) { }
+}

src/Persistence/PostgreSql/Configurations/CompanyConfiguration.cs

@@ -0,0 +1,42 @@
+using cuqmbr.TravelGuide.Domain.Entities;
+using cuqmbr.TravelGuide.Domain.Enums;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace cuqmbr.TravelGuide.Persistence.PostgreSql.Configurations;
+
+public class CompanyConfiguration : BaseConfiguration<Company>
+{
+    public override void Configure(EntityTypeBuilder<Company> builder)
+    {
+        builder
+            .ToTable("companies");
+
+        base.Configure(builder);
+
+
+        builder
+            .Property(c => c.Name)
+            .HasColumnName("name")
+            .HasColumnType("varchar(64)")
+            .IsRequired(true);
+
+        builder
+            .Property(c => c.LegalAddress)
+            .HasColumnName("legal_address")
+            .HasColumnType("varchar(256)")
+            .IsRequired(true);
+
+        builder
+            .Property(c => c.ContactEmail)
+            .HasColumnName("contact_email")
+            .HasColumnType("varchar(256)")
+            .IsRequired(true);
+
+        builder
+            .Property(c => c.ContactPhoneNumber)
+            .HasColumnName("contact_phone_number")
+            .HasColumnType("varchar(64)")
+            .IsRequired(true);
+    }
+}

src/Persistence/PostgreSql/Configurations/VehicleConfiguration.cs

@@ -37,5 +37,29 @@ public class VehicleConfiguration : BaseConfiguration<Vehicle>
             .HasValue<Train>(VehicleType.Train);
 
         base.Configure(builder);
+
+
+        builder
+            .Property(v => v.CompanyId)
+            .HasColumnName("company_id")
+            .HasColumnType("bigint")
+            .IsRequired(true);
+
+        builder
+            .HasOne(v => v.Company)
+            .WithMany(c => c.Vehicles)
+            .HasForeignKey(v => v.CompanyId)
+            .HasConstraintName(
+                "fk_" + 
+                $"{builder.Metadata.GetTableName()}_" +
+                $"{builder.Property(v => v.CompanyId).Metadata.GetColumnName()}")
+            .OnDelete(DeleteBehavior.Cascade);
+
+        builder
+            .HasIndex(v => v.CompanyId)
+            .HasDatabaseName(
+                "ix_" +
+                $"{builder.Metadata.GetTableName()}_" +
+                $"{builder.Property(v => v.CompanyId).Metadata.GetColumnName()}");
     }
 }

src/Persistence/PostgreSql/Migrations/20250515101417_Add_Companies.Designer.cs

@@ -0,0 +1,706 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using cuqmbr.TravelGuide.Persistence.PostgreSql;
+
+#nullable disable
+
+namespace Persistence.PostgreSql.Migrations
+{
+    [DbContext(typeof(PostgreSqlDbContext))]
+    [Migration("20250515101417_Add_Companies")]
+    partial class Add_Companies
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasDefaultSchema("application")
+                .HasAnnotation("ProductVersion", "9.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.HasSequence("addresses_id_sequence");
+
+            modelBuilder.HasSequence("cities_id_sequence");
+
+            modelBuilder.HasSequence("companies_id_sequence");
+
+            modelBuilder.HasSequence("countries_id_sequence");
+
+            modelBuilder.HasSequence("regions_id_sequence");
+
+            modelBuilder.HasSequence("route_address_details_id_sequence");
+
+            modelBuilder.HasSequence("route_addresses_id_sequence");
+
+            modelBuilder.HasSequence("routes_id_sequence");
+
+            modelBuilder.HasSequence("vehicle_enrollments_id_sequence");
+
+            modelBuilder.HasSequence("vehicles_id_sequence");
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Address", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id")
+                        .HasDefaultValueSql("nextval('application.addresses_id_sequence')");
+
+                    NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "addresses_id_sequence");
+
+                    b.Property<long>("CityId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("city_id");
+
+                    b.Property<Guid>("Guid")
+                        .HasColumnType("uuid")
+                        .HasColumnName("uuid");
+
+                    b.Property<double>("Latitude")
+                        .HasColumnType("double precision");
+
+                    b.Property<double>("Longitude")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("varchar(128)")
+                        .HasColumnName("name");
+
+                    b.Property<string>("VehicleType")
+                        .IsRequired()
+                        .HasColumnType("varchar(16)")
+                        .HasColumnName("vehicle_type");
+
+                    b.HasKey("Id")
+                        .HasName("pk_addresses");
+
+                    b.HasAlternateKey("Guid")
+                        .HasName("altk_addresses_uuid");
+
+                    b.HasIndex("CityId")
+                        .HasDatabaseName("ix_addresses_city_id");
+
+                    b.ToTable("addresses", "application", t =>
+                        {
+                            t.HasCheckConstraint("ck_addresses_vehicle_type", "vehicle_type IN ('bus', 'train', 'aircraft')");
+                        });
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.City", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id")
+                        .HasDefaultValueSql("nextval('application.cities_id_sequence')");
+
+                    NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "cities_id_sequence");
+
+                    b.Property<Guid>("Guid")
+                        .HasColumnType("uuid")
+                        .HasColumnName("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("varchar(64)")
+                        .HasColumnName("name");
+
+                    b.Property<long>("RegionId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("region_id");
+
+                    b.HasKey("Id")
+                        .HasName("pk_cities");
+
+                    b.HasAlternateKey("Guid")
+                        .HasName("altk_cities_uuid");
+
+                    b.HasIndex("RegionId")
+                        .HasDatabaseName("ix_cities_region_id");
+
+                    b.ToTable("cities", "application");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Company", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id")
+                        .HasDefaultValueSql("nextval('application.companies_id_sequence')");
+
+                    NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "companies_id_sequence");
+
+                    b.Property<string>("ContactEmail")
+                        .IsRequired()
+                        .HasColumnType("varchar(256)")
+                        .HasColumnName("contact_email");
+
+                    b.Property<string>("ContactPhoneNumber")
+                        .IsRequired()
+                        .HasColumnType("varchar(64)")
+                        .HasColumnName("contact_phone_number");
+
+                    b.Property<Guid>("Guid")
+                        .HasColumnType("uuid")
+                        .HasColumnName("uuid");
+
+                    b.Property<string>("LegalAddress")
+                        .IsRequired()
+                        .HasColumnType("varchar(256)")
+                        .HasColumnName("legal_address");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("varchar(64)")
+                        .HasColumnName("name");
+
+                    b.HasKey("Id")
+                        .HasName("pk_companies");
+
+                    b.HasAlternateKey("Guid")
+                        .HasName("altk_companies_uuid");
+
+                    b.ToTable("companies", "application");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Country", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id")
+                        .HasDefaultValueSql("nextval('application.countries_id_sequence')");
+
+                    NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "countries_id_sequence");
+
+                    b.Property<Guid>("Guid")
+                        .HasColumnType("uuid")
+                        .HasColumnName("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("varchar(64)")
+                        .HasColumnName("name");
+
+                    b.HasKey("Id")
+                        .HasName("pk_countries");
+
+                    b.HasAlternateKey("Guid")
+                        .HasName("altk_countries_uuid");
+
+                    b.ToTable("countries", "application");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Region", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id")
+                        .HasDefaultValueSql("nextval('application.regions_id_sequence')");
+
+                    NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "regions_id_sequence");
+
+                    b.Property<long>("CountryId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("country_id");
+
+                    b.Property<Guid>("Guid")
+                        .HasColumnType("uuid")
+                        .HasColumnName("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("varchar(64)")
+                        .HasColumnName("name");
+
+                    b.HasKey("Id")
+                        .HasName("pk_regions");
+
+                    b.HasAlternateKey("Guid")
+                        .HasName("altk_regions_uuid");
+
+                    b.HasIndex("CountryId")
+                        .HasDatabaseName("ix_regions_country_id");
+
+                    b.ToTable("regions", "application");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Route", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id")
+                        .HasDefaultValueSql("nextval('application.routes_id_sequence')");
+
+                    NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "routes_id_sequence");
+
+                    b.Property<Guid>("Guid")
+                        .HasColumnType("uuid")
+                        .HasColumnName("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("varchar(64)")
+                        .HasColumnName("name");
+
+                    b.Property<string>("VehicleType")
+                        .IsRequired()
+                        .HasColumnType("varchar(16)")
+                        .HasColumnName("vehicle_type");
+
+                    b.HasKey("Id")
+                        .HasName("pk_routes");
+
+                    b.HasAlternateKey("Guid")
+                        .HasName("altk_routes_uuid");
+
+                    b.ToTable("routes", "application", t =>
+                        {
+                            t.HasCheckConstraint("ck_routes_vehicle_type", "vehicle_type IN ('bus', 'train', 'aircraft')");
+                        });
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.RouteAddress", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id")
+                        .HasDefaultValueSql("nextval('application.route_addresses_id_sequence')");
+
+                    NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "route_addresses_id_sequence");
+
+                    b.Property<long>("AddressId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("address_id");
+
+                    b.Property<Guid>("Guid")
+                        .HasColumnType("uuid")
+                        .HasColumnName("uuid");
+
+                    b.Property<short>("Order")
+                        .HasColumnType("smallint")
+                        .HasColumnName("order");
+
+                    b.Property<long>("RouteId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("route_id");
+
+                    b.HasKey("Id")
+                        .HasName("pk_route_addresses");
+
+                    b.HasAlternateKey("Guid")
+                        .HasName("altk_route_addresses_uuid");
+
+                    b.HasAlternateKey("AddressId", "RouteId", "Order")
+                        .HasName("altk_route_addresses_address_id_route_id_order");
+
+                    b.HasIndex("AddressId")
+                        .HasDatabaseName("ix_route_addresses_address_id");
+
+                    b.HasIndex("RouteId")
+                        .HasDatabaseName("ix_route_addresses_route_id");
+
+                    b.ToTable("route_addresses", "application");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.RouteAddressDetail", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id")
+                        .HasDefaultValueSql("nextval('application.route_address_details_id_sequence')");
+
+                    NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "route_address_details_id_sequence");
+
+                    b.Property<decimal>("CostToNextAddress")
+                        .HasColumnType("numeric(24,12)")
+                        .HasColumnName("cost_to_next_address");
+
+                    b.Property<TimeSpan>("CurrentAddressStopTime")
+                        .HasColumnType("interval")
+                        .HasColumnName("current_address_stop_time");
+
+                    b.Property<Guid>("Guid")
+                        .HasColumnType("uuid")
+                        .HasColumnName("uuid");
+
+                    b.Property<long>("RouteAddressId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("route_address_id");
+
+                    b.Property<TimeSpan>("TimeToNextAddress")
+                        .HasColumnType("interval")
+                        .HasColumnName("time_to_next_address");
+
+                    b.Property<long>("VehicleEnrollmentId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("vehicle_enrollment_id");
+
+                    b.HasKey("Id")
+                        .HasName("pk_route_address_details");
+
+                    b.HasAlternateKey("Guid")
+                        .HasName("altk_route_address_details_uuid");
+
+                    b.HasIndex("RouteAddressId")
+                        .HasDatabaseName("ix_route_address_details_route_address_id");
+
+                    b.HasIndex("VehicleEnrollmentId")
+                        .HasDatabaseName("ix_route_address_details_vehicle_enrollment_id");
+
+                    b.ToTable("route_address_details", "application");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Vehicle", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id")
+                        .HasDefaultValueSql("nextval('application.vehicles_id_sequence')");
+
+                    NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "vehicles_id_sequence");
+
+                    b.Property<long>("CompanyId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("company_id");
+
+                    b.Property<Guid>("Guid")
+                        .HasColumnType("uuid")
+                        .HasColumnName("uuid");
+
+                    b.Property<string>("VehicleType")
+                        .IsRequired()
+                        .HasColumnType("varchar(16)")
+                        .HasColumnName("vehicle_type");
+
+                    b.HasKey("Id")
+                        .HasName("pk_vehicles");
+
+                    b.HasAlternateKey("Guid")
+                        .HasName("altk_vehicles_uuid");
+
+                    b.HasIndex("CompanyId")
+                        .HasDatabaseName("ix_vehicles_company_id");
+
+                    b.ToTable("vehicles", "application", t =>
+                        {
+                            t.HasCheckConstraint("ck_vehicles_vehicle_type", "vehicle_type IN ('bus', 'train', 'aircraft')");
+                        });
+
+                    b.HasDiscriminator<string>("VehicleType");
+
+                    b.UseTphMappingStrategy();
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.VehicleEnrollment", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id")
+                        .HasDefaultValueSql("nextval('application.vehicle_enrollments_id_sequence')");
+
+                    NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "vehicle_enrollments_id_sequence");
+
+                    b.Property<string>("Currency")
+                        .IsRequired()
+                        .HasColumnType("varchar(8)")
+                        .HasColumnName("currency");
+
+                    b.Property<DateTimeOffset>("DepartureTime")
+                        .HasColumnType("timestamptz")
+                        .HasColumnName("departure_time");
+
+                    b.Property<Guid>("Guid")
+                        .HasColumnType("uuid")
+                        .HasColumnName("uuid");
+
+                    b.Property<long>("RouteId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("route_id");
+
+                    b.Property<long>("VehicleId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("vehicle_id");
+
+                    b.HasKey("Id")
+                        .HasName("pk_vehicle_enrollments");
+
+                    b.HasAlternateKey("Guid")
+                        .HasName("altk_vehicle_enrollments_uuid");
+
+                    b.HasIndex("RouteId")
+                        .HasDatabaseName("ix_vehicle_enrollments_route_id");
+
+                    b.HasIndex("VehicleId")
+                        .HasDatabaseName("ix_vehicle_enrollments_vehicle_id");
+
+                    b.ToTable("vehicle_enrollments", "application", t =>
+                        {
+                            t.HasCheckConstraint("ck_vehicle_enrollments_currency", "currency IN ('DEFAULT', 'USD', 'EUR', 'UAH')");
+                        });
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Aircraft", b =>
+                {
+                    b.HasBaseType("cuqmbr.TravelGuide.Domain.Entities.Vehicle");
+
+                    b.Property<short>("Capacity")
+                        .ValueGeneratedOnUpdateSometimes()
+                        .HasColumnType("smallint")
+                        .HasColumnName("capacity");
+
+                    b.Property<string>("Model")
+                        .IsRequired()
+                        .ValueGeneratedOnUpdateSometimes()
+                        .HasColumnType("varchar(64)")
+                        .HasColumnName("model");
+
+                    b.Property<string>("Number")
+                        .IsRequired()
+                        .ValueGeneratedOnUpdateSometimes()
+                        .HasColumnType("varchar(32)")
+                        .HasColumnName("number");
+
+                    b.ToTable(t =>
+                        {
+                            t.HasCheckConstraint("ck_vehicles_vehicle_type", "vehicle_type IN ('bus', 'train', 'aircraft')");
+                        });
+
+                    b.HasDiscriminator().HasValue("aircraft");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Bus", b =>
+                {
+                    b.HasBaseType("cuqmbr.TravelGuide.Domain.Entities.Vehicle");
+
+                    b.Property<short>("Capacity")
+                        .ValueGeneratedOnUpdateSometimes()
+                        .HasColumnType("smallint")
+                        .HasColumnName("capacity");
+
+                    b.Property<string>("Model")
+                        .IsRequired()
+                        .ValueGeneratedOnUpdateSometimes()
+                        .HasColumnType("varchar(64)")
+                        .HasColumnName("model");
+
+                    b.Property<string>("Number")
+                        .IsRequired()
+                        .ValueGeneratedOnUpdateSometimes()
+                        .HasColumnType("varchar(32)")
+                        .HasColumnName("number");
+
+                    b.ToTable(t =>
+                        {
+                            t.HasCheckConstraint("ck_vehicles_vehicle_type", "vehicle_type IN ('bus', 'train', 'aircraft')");
+                        });
+
+                    b.HasDiscriminator().HasValue("bus");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Train", b =>
+                {
+                    b.HasBaseType("cuqmbr.TravelGuide.Domain.Entities.Vehicle");
+
+                    b.Property<short>("Capacity")
+                        .ValueGeneratedOnUpdateSometimes()
+                        .HasColumnType("smallint")
+                        .HasColumnName("capacity");
+
+                    b.Property<string>("Model")
+                        .IsRequired()
+                        .ValueGeneratedOnUpdateSometimes()
+                        .HasColumnType("varchar(64)")
+                        .HasColumnName("model");
+
+                    b.Property<string>("Number")
+                        .IsRequired()
+                        .ValueGeneratedOnUpdateSometimes()
+                        .HasColumnType("varchar(32)")
+                        .HasColumnName("number");
+
+                    b.ToTable(t =>
+                        {
+                            t.HasCheckConstraint("ck_vehicles_vehicle_type", "vehicle_type IN ('bus', 'train', 'aircraft')");
+                        });
+
+                    b.HasDiscriminator().HasValue("train");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Address", b =>
+                {
+                    b.HasOne("cuqmbr.TravelGuide.Domain.Entities.City", "City")
+                        .WithMany("Addresses")
+                        .HasForeignKey("CityId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_addresses_city_id");
+
+                    b.Navigation("City");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.City", b =>
+                {
+                    b.HasOne("cuqmbr.TravelGuide.Domain.Entities.Region", "Region")
+                        .WithMany("Cities")
+                        .HasForeignKey("RegionId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_cities_region_id");
+
+                    b.Navigation("Region");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Region", b =>
+                {
+                    b.HasOne("cuqmbr.TravelGuide.Domain.Entities.Country", "Country")
+                        .WithMany("Regions")
+                        .HasForeignKey("CountryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_regions_country_id");
+
+                    b.Navigation("Country");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.RouteAddress", b =>
+                {
+                    b.HasOne("cuqmbr.TravelGuide.Domain.Entities.Address", "Address")
+                        .WithMany("AddressRoutes")
+                        .HasForeignKey("AddressId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_route_addresses_address_id");
+
+                    b.HasOne("cuqmbr.TravelGuide.Domain.Entities.Route", "Route")
+                        .WithMany("RouteAddresses")
+                        .HasForeignKey("RouteId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_route_addresses_route_id");
+
+                    b.Navigation("Address");
+
+                    b.Navigation("Route");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.RouteAddressDetail", b =>
+                {
+                    b.HasOne("cuqmbr.TravelGuide.Domain.Entities.RouteAddress", "RouteAddress")
+                        .WithMany("Details")
+                        .HasForeignKey("RouteAddressId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_route_address_details_route_address_id");
+
+                    b.HasOne("cuqmbr.TravelGuide.Domain.Entities.VehicleEnrollment", "VehicleEnrollment")
+                        .WithMany("RouteAddressDetails")
+                        .HasForeignKey("VehicleEnrollmentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_route_address_details_vehicle_enrollment_id");
+
+                    b.Navigation("RouteAddress");
+
+                    b.Navigation("VehicleEnrollment");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Vehicle", b =>
+                {
+                    b.HasOne("cuqmbr.TravelGuide.Domain.Entities.Company", "Company")
+                        .WithMany("Vehicles")
+                        .HasForeignKey("CompanyId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_vehicles_company_id");
+
+                    b.Navigation("Company");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.VehicleEnrollment", b =>
+                {
+                    b.HasOne("cuqmbr.TravelGuide.Domain.Entities.Route", "Route")
+                        .WithMany("VehicleEnrollments")
+                        .HasForeignKey("RouteId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_vehicle_enrollments_route_id");
+
+                    b.HasOne("cuqmbr.TravelGuide.Domain.Entities.Vehicle", "Vehicle")
+                        .WithMany("Enrollments")
+                        .HasForeignKey("VehicleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_vehicle_enrollments_vehicle_id");
+
+                    b.Navigation("Route");
+
+                    b.Navigation("Vehicle");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Address", b =>
+                {
+                    b.Navigation("AddressRoutes");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.City", b =>
+                {
+                    b.Navigation("Addresses");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Company", b =>
+                {
+                    b.Navigation("Vehicles");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Country", b =>
+                {
+                    b.Navigation("Regions");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Region", b =>
+                {
+                    b.Navigation("Cities");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Route", b =>
+                {
+                    b.Navigation("RouteAddresses");
+
+                    b.Navigation("VehicleEnrollments");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.RouteAddress", b =>
+                {
+                    b.Navigation("Details");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Vehicle", b =>
+                {
+                    b.Navigation("Enrollments");
+                });
+
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.VehicleEnrollment", b =>
+                {
+                    b.Navigation("RouteAddressDetails");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/Persistence/PostgreSql/Migrations/20250515101417_Add_Companies.cs

@@ -0,0 +1,110 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Persistence.PostgreSql.Migrations
+{
+    /// <inheritdoc />
+    public partial class Add_Companies : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropCheckConstraint(
+                name: "ck_vehicle_enrollments_currency",
+                schema: "application",
+                table: "vehicle_enrollments");
+
+            migrationBuilder.CreateSequence(
+                name: "companies_id_sequence",
+                schema: "application");
+
+            migrationBuilder.AddColumn<long>(
+                name: "company_id",
+                schema: "application",
+                table: "vehicles",
+                type: "bigint",
+                nullable: false,
+                defaultValue: 0L);
+
+            migrationBuilder.CreateTable(
+                name: "companies",
+                schema: "application",
+                columns: table => new
+                {
+                    id = table.Column<long>(type: "bigint", nullable: false, defaultValueSql: "nextval('application.companies_id_sequence')"),
+                    name = table.Column<string>(type: "varchar(64)", nullable: false),
+                    legal_address = table.Column<string>(type: "varchar(256)", nullable: false),
+                    contact_email = table.Column<string>(type: "varchar(256)", nullable: false),
+                    contact_phone_number = table.Column<string>(type: "varchar(64)", nullable: false),
+                    uuid = table.Column<Guid>(type: "uuid", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("pk_companies", x => x.id);
+                    table.UniqueConstraint("altk_companies_uuid", x => x.uuid);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "ix_vehicles_company_id",
+                schema: "application",
+                table: "vehicles",
+                column: "company_id");
+
+            migrationBuilder.AddCheckConstraint(
+                name: "ck_vehicle_enrollments_currency",
+                schema: "application",
+                table: "vehicle_enrollments",
+                sql: "currency IN ('DEFAULT', 'USD', 'EUR', 'UAH')");
+
+            migrationBuilder.AddForeignKey(
+                name: "fk_vehicles_company_id",
+                schema: "application",
+                table: "vehicles",
+                column: "company_id",
+                principalSchema: "application",
+                principalTable: "companies",
+                principalColumn: "id",
+                onDelete: ReferentialAction.Cascade);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "fk_vehicles_company_id",
+                schema: "application",
+                table: "vehicles");
+
+            migrationBuilder.DropTable(
+                name: "companies",
+                schema: "application");
+
+            migrationBuilder.DropIndex(
+                name: "ix_vehicles_company_id",
+                schema: "application",
+                table: "vehicles");
+
+            migrationBuilder.DropCheckConstraint(
+                name: "ck_vehicle_enrollments_currency",
+                schema: "application",
+                table: "vehicle_enrollments");
+
+            migrationBuilder.DropColumn(
+                name: "company_id",
+                schema: "application",
+                table: "vehicles");
+
+            migrationBuilder.DropSequence(
+                name: "companies_id_sequence",
+                schema: "application");
+
+            migrationBuilder.AddCheckConstraint(
+                name: "ck_vehicle_enrollments_currency",
+                schema: "application",
+                table: "vehicle_enrollments",
+                sql: "currency IN ('USD', 'EUR', 'UAH')");
+        }
+    }
+}

src/Persistence/PostgreSql/Migrations/PostgreSqlDbContextModelSnapshot.cs

@@ -27,6 +27,8 @@ namespace Persistence.PostgreSql.Migrations
 
             modelBuilder.HasSequence("cities_id_sequence");
 
+            modelBuilder.HasSequence("companies_id_sequence");
+
             modelBuilder.HasSequence("countries_id_sequence");
 
             modelBuilder.HasSequence("regions_id_sequence");
@@ -125,6 +127,49 @@ namespace Persistence.PostgreSql.Migrations
                     b.ToTable("cities", "application");
                 });
 
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Company", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id")
+                        .HasDefaultValueSql("nextval('application.companies_id_sequence')");
+
+                    NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "companies_id_sequence");
+
+                    b.Property<string>("ContactEmail")
+                        .IsRequired()
+                        .HasColumnType("varchar(256)")
+                        .HasColumnName("contact_email");
+
+                    b.Property<string>("ContactPhoneNumber")
+                        .IsRequired()
+                        .HasColumnType("varchar(64)")
+                        .HasColumnName("contact_phone_number");
+
+                    b.Property<Guid>("Guid")
+                        .HasColumnType("uuid")
+                        .HasColumnName("uuid");
+
+                    b.Property<string>("LegalAddress")
+                        .IsRequired()
+                        .HasColumnType("varchar(256)")
+                        .HasColumnName("legal_address");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("varchar(64)")
+                        .HasColumnName("name");
+
+                    b.HasKey("Id")
+                        .HasName("pk_companies");
+
+                    b.HasAlternateKey("Guid")
+                        .HasName("altk_companies_uuid");
+
+                    b.ToTable("companies", "application");
+                });
+
             modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Country", b =>
                 {
                     b.Property<long>("Id")
@@ -327,6 +372,10 @@ namespace Persistence.PostgreSql.Migrations
 
                     NpgsqlPropertyBuilderExtensions.UseSequence(b.Property<long>("Id"), "vehicles_id_sequence");
 
+                    b.Property<long>("CompanyId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("company_id");
+
                     b.Property<Guid>("Guid")
                         .HasColumnType("uuid")
                         .HasColumnName("uuid");
@@ -342,6 +391,9 @@ namespace Persistence.PostgreSql.Migrations
                     b.HasAlternateKey("Guid")
                         .HasName("altk_vehicles_uuid");
 
+                    b.HasIndex("CompanyId")
+                        .HasDatabaseName("ix_vehicles_company_id");
+
                     b.ToTable("vehicles", "application", t =>
                         {
                             t.HasCheckConstraint("ck_vehicles_vehicle_type", "vehicle_type IN ('bus', 'train', 'aircraft')");
@@ -397,7 +449,7 @@ namespace Persistence.PostgreSql.Migrations
 
                     b.ToTable("vehicle_enrollments", "application", t =>
                         {
-                            t.HasCheckConstraint("ck_vehicle_enrollments_currency", "currency IN ('USD', 'EUR', 'UAH')");
+                            t.HasCheckConstraint("ck_vehicle_enrollments_currency", "currency IN ('DEFAULT', 'USD', 'EUR', 'UAH')");
                         });
                 });
 
@@ -566,6 +618,18 @@ namespace Persistence.PostgreSql.Migrations
                     b.Navigation("VehicleEnrollment");
                 });
 
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Vehicle", b =>
+                {
+                    b.HasOne("cuqmbr.TravelGuide.Domain.Entities.Company", "Company")
+                        .WithMany("Vehicles")
+                        .HasForeignKey("CompanyId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_vehicles_company_id");
+
+                    b.Navigation("Company");
+                });
+
             modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.VehicleEnrollment", b =>
                 {
                     b.HasOne("cuqmbr.TravelGuide.Domain.Entities.Route", "Route")
@@ -597,6 +661,11 @@ namespace Persistence.PostgreSql.Migrations
                     b.Navigation("Addresses");
                 });
 
+            modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Company", b =>
+                {
+                    b.Navigation("Vehicles");
+                });
+
             modelBuilder.Entity("cuqmbr.TravelGuide.Domain.Entities.Country", b =>
                 {
                     b.Navigation("Regions");

src/Persistence/PostgreSql/PostgreSqlUnitOfWork.cs

@@ -26,6 +26,7 @@ public sealed class PostgreSqlUnitOfWork : UnitOfWork
             new PostgreSqlVehicleEnrollmentRepository(_dbContext);
         RouteAddressRepository =
             new PostgreSqlRouteAddressRepository(_dbContext);
+        CompanyRepository = new PostgreSqlCompanyRepository(_dbContext);
     }
 
     public CountryRepository CountryRepository { get; init; }
@@ -50,6 +51,8 @@ public sealed class PostgreSqlUnitOfWork : UnitOfWork
 
     public RouteAddressRepository RouteAddressRepository { get; init; }
 
+    public CompanyRepository CompanyRepository { get; init; }
+
     public int Save()
     {
         return _dbContext.SaveChanges();

src/Persistence/PostgreSql/Repositories/PostgreSqlCompanyRepository.cs

@@ -0,0 +1,11 @@
+using cuqmbr.TravelGuide.Application.Common.Interfaces.Persistence.Repositories;
+using cuqmbr.TravelGuide.Domain.Entities;
+
+namespace cuqmbr.TravelGuide.Persistence.PostgreSql.Repositories;
+
+public sealed class PostgreSqlCompanyRepository :
+    PostgreSqlBaseRepository<Company>, CompanyRepository
+{
+    public PostgreSqlCompanyRepository(PostgreSqlDbContext dbContext)
+        : base(dbContext) { }
+}