using System.Linq;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.JsonPatch;
using EnumsNET;
using AyaNova.Util;
using AyaNova.Api.ControllerHelpers;
using AyaNova.Biz;
using AyaNova.Models;


namespace AyaNova.Biz
{

    //Turn a type and ID into a displayable name
    internal static class BizObjectNameFetcher
    {

        internal static string Name(AyaTypeId tid, AyContext ct = null)
        {
            return Name(tid.ObjectType, tid.ObjectId, ct);
        }


        //Returns existance status of object type and id specified in database
        internal static string Name(AyaType aytype, long id, AyContext ct = null)
        {
            //new up a context??
            if (ct == null)
            {
                ct = ServiceProviderProvider.DBContext;
            }
            switch (aytype)
            {
                case AyaType.User:
                    return ct.User.AsNoTracking().Where(m => m.Id == id).Select(m => m.Name).FirstOrDefault();
                case AyaType.Widget:
                    {

                        using (var command = ct.Database.GetDbConnection().CreateCommand())
                        {
                            command.CommandText = $"SELECT m.name FROM awidget AS m WHERE m.id = {id} LIMIT 1";
                            ct.Database.OpenConnection();
                            using (var dr = command.ExecuteReader())
                            {

                                // do something with result
                                return dr.Read() ? dr.GetString(0) : "UNKNOWN";
                            }
                        }

                        //                 var ret = ct.Widget
                        // .FromSql($"SELECT m.name FROM awidget AS m WHERE m.id = {id} LIMIT 1")
                        // .FirstOrDefault();
                        //                 return ret.Name;



                        // return ct.Widget.AsNoTracking().Where(m => m.Id == id).Select(m => m.Name).FirstOrDefault();
                    }
                case AyaType.Tag:
                    return ct.Tag.AsNoTracking().Where(m => m.Id == id).Select(m => m.Name).FirstOrDefault();
                case AyaType.TagGroup:
                    return ct.TagGroup.AsNoTracking().Where(m => m.Id == id).Select(m => m.Name).FirstOrDefault();

                default:
                    throw new System.NotSupportedException($"AyaNova.BLL.BizObjectNameFetcher::Name type {aytype.ToString()} is not supported");
            }

        }





        /////////////////////////////////////////////////////////////////////

    }//eoc


}//eons