using GreenTree.Nachtragsmanagement.Core.Authentication;
using GreenTree.Nachtragsmanagement.Services.Appendix;
using GreenTree.Nachtragsmanagement.Services.Deviation;
using GreenTree.Nachtragsmanagement.Services.Site;
using GreenTree.Nachtragsmanagement.Services.User;
using GreenTree.Nachtragsmanagement.Web.Models.Global;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace GreenTree.Nachtragsmanagement.Web.Controllers
{
    public class GlobalController : Controller
    {
        private readonly IUserHelper _userHelper;
        private readonly IUserService _userService;
        private readonly IAppendixService _appendixService;
        private readonly IDeviationService _deviationService;
        private readonly ISiteService _siteService;

        public GlobalController(
            IUserHelper userHelper,
            IUserService userService,
            IAppendixService appendixService,
            IDeviationService deviationService,
            ISiteService siteService)
        {
            _userHelper = userHelper;
            _userService = userService;
            _appendixService = appendixService;
            _deviationService = deviationService;
            _siteService = siteService;
        }

        /// <summary>
        /// Represents the global Footer
        /// </summary>
        public ActionResult Footer()
        {
            var cookieUser = _userHelper.FromCookies();

            if (cookieUser == null)
                return View("~/Views/Shared/_Footer.cshtml", null);

            var dbUser = _userService.GetUserById(cookieUser.Id);

            if (dbUser == null)
                return View("~/Views/Shared/_Footer.cshtml", null);

            var footerModel = new FooterModel
            {
                CustomNumber = dbUser.CustomNumber,
                Forename = dbUser.Forename,
                Lastname = dbUser.Lastname,
                RoleDescription = dbUser.CurrentRole.Description
            };

            ViewData["Roles"] =
                dbUser.Roles
                    .Select(r => new
                    {
                        r.Id,
                        r.Description
                    });

            return View("~/Views/Shared/_Footer.cshtml", footerModel);
        }

        /// <summary>
        /// Sets the current role of the logged in user and redirects to the home page
        /// </summary>
        /// <param name="roleId">The id of the new role.</param>
        public ActionResult SetRole(int roleId)
        {
            var user = _userHelper.FromCookies();
            var role = _userService.GetRoleById(roleId);

            user.CurrentRole = role;

            _userHelper.ToCookies(user);

            return RedirectToAction("Index", "Home");
        }

        /// <summary>
        /// Shows an unauthorized message
        /// </summary>
        public ActionResult NotAuthorized()
        {
            return View("~/Views/Global/NotAuthorized.cshtml");
        }

        /// <summary>
        /// Gets a full comment of a given entity
        /// </summary>
        /// <param name="entityType">The entity type.</param>
        /// <param name="id">The entity id.</param>
        public ActionResult GetEntityComment(string entityType, int id)
        {
            var result = new JsonResult
            {
                JsonRequestBehavior = JsonRequestBehavior.AllowGet,
                Data = String.Empty
            };

            if (String.IsNullOrEmpty(entityType))
                return result;

            switch (entityType)
            {
                case "appendix":
                    var appendix = _appendixService.GetAppendixById(id);

                    result.Data = appendix.Comment;
                    break;
                case "deviation":
                    var deviation = _deviationService.GetDeviationById(id);

                    result.Data = deviation.Comment;
                    break;
                case "site":
                    var site = _siteService.GetSiteById(id);

                    result.Data = site.Comment;
                    break;
                default:
                    return result;
            }

            return result;
        }
    }
}