using AutobusApi.Application.Common.Exceptions;
using AutobusApi.Application.Common.Interfaces;
using MediatR;
using Microsoft.EntityFrameworkCore;

namespace AutobusApi.Application.Companies.Commands.DeleteCompany;

public class DeleteCompanyCommandHandler : IRequestHandler<DeleteCompanyCommand>
{
    private readonly IApplicationDbContext _dbContext;

    public DeleteCompanyCommandHandler(IApplicationDbContext dbContext)
    {
        _dbContext = dbContext;
    }

    public async Task Handle(
        DeleteCompanyCommand request,
        CancellationToken cancellationToken)
    {
        var company = await _dbContext.Companies
            .SingleOrDefaultAsync(c => c.Id == request.Id, cancellationToken);

        if (company == null)
        {
            throw new NotFoundException();
        }

        _dbContext.Companies.Remove(company);

        await _dbContext.SaveChangesAsync(cancellationToken);
    }
}