using System;
using MediatR;
using Microsoft.EntityFrameworkCore;
using Venues.DbContexts;
using Venues.Entities;
using Venues.Helpers;
using Venues.Queries;

namespace Venues.Handlers
{
	public class GetVenuesQueryHandler : IRequestHandler<GetVenuesQuery, PagedList<Venue>>
	{
		private readonly VenuesContext _dbContext;

		public GetVenuesQueryHandler(VenuesContext dbContext)
		{
			_dbContext = dbContext ?? throw new ArgumentNullException(nameof(dbContext));
		}

		public async Task<PagedList<Venue>> Handle(GetVenuesQuery request, CancellationToken cancellation)
		{
			return PagedList<Venue>.ToPagedList(await _dbContext.Venues.ToListAsync(), request.PageNumber, request.PageSize);
		}
	}
}