using Markdig;

using Microsoft.AspNetCore.Mvc;
using PrivaPub.ClientModels.Resources;
using PrivaPub.Extensions;
using PrivaPub.Models.ActivityPub;
using PrivaPub.Models.Group;
using PrivaPub.Services;

using System.ComponentModel.DataAnnotations;

namespace PrivaPub.Controllers.ServerToServer
{
	[ApiController,
		Route("users"), Produces("application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"; charset=utf-8")]
	public class UsersController : ControllerBase
	{
		readonly IRootUsersService _rootUsersService;

		public UsersController(IRootUsersService rootUsersService)
		{
			_rootUsersService = rootUsersService;
		}

		[HttpGet, Route("{actor}")]
		public async Task<IActionResult> GetActor(
			[Required(ErrorMessageResourceName = "Required",
			ErrorMessageResourceType = typeof(FieldsNameResource))] string actor,
			CancellationToken cancellation)
		{
			var getResult = await _groupUsersService.GetGroup(actor, cancellation);
			if (!getResult.IsValid)
				return StatusCode(getResult.StatusCode, getResult);

			var actorResponse = new ActivityPubActor();
			actorResponse.Context[1] = string.Format(actorResponse.Context[1].ToString(), HttpContext.Request.PathBase);
			actorResponse.Id = $"{HttpContext.GetHost()}/peasants/{actor}";
			actorResponse.ProfileURL = $"{HttpContext.GetHost()}/peasants/{actor}";
			actorResponse.Inbox = $"{HttpContext.GetHost()}/peasants/{actor}/mouth";
			actorResponse.Outbox = $"{HttpContext.GetHost()}/peasants/{actor}/anus";
			actorResponse.Endpoints = new()
			{
				SharedInboxURL = $"{HttpContext.GetHost()}/peasants/{actor}/human-centipede",
				OAuthAuthorizationEndpoint = $"{HttpContext.GetHost()}/sniff/again",
			};
			actorResponse.PreferredUsername = actor;
			actorResponse.Name = actor;

			if (getResult.Data is DmGroup dmGroup)
			{
				actorResponse.Summary = Markdown.ToHtml(dmGroup.Description);
				actorResponse.Published = dmGroup.CreationDate;
			}
			else if (getResult.Data is Group dbGroup)
			{
				actorResponse.Summary = Markdown.ToHtml(dbGroup.Description);
				actorResponse.Published = dbGroup.CreationDate;
			}

			return Ok(actorResponse);
		}

		#region Admin



		#endregion
	}
}