using System;
using System.Threading.Tasks;
using HN.Application;
using HN.Domain;
using MediatR;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace Api.Controllers
{
  [ApiController]
  [Route("api/[controller]")]
  public sealed class CommentsController : ControllerBase
  {
    private readonly IMediator _bus;

    public CommentsController(IMediator bus)
    {
      _bus = bus;
    }

    /// <summary>
    /// Upvote un commentaire particulier.
    /// </summary>
    /// <param name="id"></param>
    /// <returns></returns>
    [HttpPut("{id}/upvote")]
    [ProducesResponseType(StatusCodes.Status204NoContent)]
    public async Task<IActionResult> Upvote(Guid id)
    {
      await _bus.Send(new VoteForCommentCommand(id, VoteType.Up));
      return NoContent();
    }

    /// <summary>
    /// Downvote un commentaire particulier.
    /// </summary>
    /// <param name="id"></param>
    /// <returns></returns>
    [HttpPut("{id}/downvote")]
    [ProducesResponseType(StatusCodes.Status204NoContent)]
    public async Task<IActionResult> Downvote(Guid id)
    {
      await _bus.Send(new VoteForCommentCommand(id, VoteType.Down));
      return NoContent();
    }
  }
}