using System;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;
using Sockeye.Util;
using Sockeye.Api.ControllerHelpers;
using Sockeye.Models;

namespace Sockeye.Biz
{

    internal class GlobalOpsNotificationSettingsBiz : BizObject
    {

        internal GlobalOpsNotificationSettingsBiz(AyContext dbcontext, long currentUserId, long userTranslationId, AuthorizationRoles UserRoles)
        {
            ct = dbcontext;
            UserId = currentUserId;
            UserTranslationId = userTranslationId;
            CurrentUserRoles = UserRoles;
            BizType = SockType.OpsNotificationSettings;
        }

        internal static GlobalOpsNotificationSettingsBiz GetBiz(AyContext ct, Microsoft.AspNetCore.Http.HttpContext httpContext = null)
        {
            if (httpContext != null)
                return new GlobalOpsNotificationSettingsBiz(ct, UserIdFromContext.Id(httpContext.Items), UserTranslationIdFromContext.Id(httpContext.Items), UserRolesFromContext.Roles(httpContext.Items));
            else
                return new GlobalOpsNotificationSettingsBiz(ct, 1, ServerBootConfig.SOCKEYE_DEFAULT_TRANSLATION_ID, AuthorizationRoles.BizAdmin);
        }




        ////////////////////////////////////////////////////////////////////////////////////////////////
        /// GET

        //Get one
        internal async Task<GlobalOpsNotificationSettings> GetAsync(bool logTheGetEvent = true)
        {
            //first try to fetch from db
            var ret = await ct.GlobalOpsNotificationSettings.SingleOrDefaultAsync(m => m.Id == 1);
            if (logTheGetEvent && ret != null)
                await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, 1, BizType, SockEvent.Retrieved), ct);
            //expected to exists because it's created on boot if not present
            if (ret == null)
                throw new System.Exception("GlobalOpsNotificationSettings::GetAsync -> Settings object not found in database!!");

            return ret;
        }



        ////////////////////////////////////////////////////////////////////////////////////////////////
        //UPDATE
        //

        //put
        internal async Task<GlobalOpsNotificationSettings> PutAsync(GlobalOpsNotificationSettings putObject)
        {
            //todo: replace with new put methodology
            var dbObject = await ct.GlobalOpsNotificationSettings.FirstOrDefaultAsync(m => m.Id == 1);
            if (dbObject == null)
                throw new System.Exception("GlobalOpsNotificationSettings::PutAsync -> Settings object not found in database!!");

            CopyObject.Copy(putObject, dbObject, "Id");
            ct.Entry(dbObject).OriginalValues["Concurrency"] = putObject.Concurrency;
            Validate(dbObject);
            if (HasErrors)
                return null;

            try
            {
                await ct.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                AddError(ApiErrorCode.CONCURRENCY_CONFLICT);
                return null;
            }

            await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, 1, BizType, SockEvent.Modified), ct);
            //Update the static copy for the server
            ServerGlobalOpsSettingsCache.Notify = dbObject;

            return dbObject;
        }



        ////////////////////////////////////////////////////////////////////////////////////////////////
        //VALIDATION
        //

        //Can save or update?
        private void Validate(GlobalOpsNotificationSettings inObj)
        {

            //currently nothing to validate
        }




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

    }//eoc


}//eons