using AutobusApi.Application.Common.Interfaces;
using AutobusApi.Domain.Entities;
using MediatR;

namespace AutobusApi.Application.Routes.Commands.CreateRoute;

public class CreateRouteCommandHandler : IRequestHandler<CreateRouteCommand, int>
{
    private readonly IApplicationDbContext _dbContext;

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

    public async Task<int> Handle(
        CreateRouteCommand request,
        CancellationToken cancellationToken)
    {
        var route = new Route();

        route.RouteAddresses = request.Addresses.Select(a => 
            new RouteAddress
            {
                Order = a.Order,
                AddressId = a.Id
            }).ToList();

        _dbContext.Routes.Add(route);

        await _dbContext.SaveChangesAsync(cancellationToken);

        return route.Id;
    }
}