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

namespace Website.Controllers
{
  public class LinksController : BaseController
  {
    private readonly IMediator _bus;

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

    [HttpGet]
    public async Task<IActionResult> Index()
    {
      return View(await _bus.Send(new ListLinksQuery()));
    }

    [HttpGet("{controller}/{id:guid}")]
    public async Task<IActionResult> Show(Guid id)
    {
      return View(new ShowLinkViewModel(await _bus.Send(new GetLinkQuery(id)), new CommentLinkCommand(id)));
    }

    public IActionResult Create()
    {
      return View(new AddLinkCommand());
    }

    [HttpPost("{controller}/{id:guid}/vote")]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Vote(Guid id, string url, VoteType type, string redirectTo)
    {
      await _bus.Send(new VoteForLinkCommand(id, type));

      SetFlash($"Successfuly {type} for {url}!");
      return Redirect(redirectTo);
    }

    [HttpPost]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Create(AddLinkCommand command)
    {
      if (!ModelState.IsValid)
      {
        return View(command);
      }

      await _bus.Send(command);

      SetFlash("Link added!");

      return RedirectToAction(nameof(Index));
    }
  }
}