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

namespace AyaNova.Biz
{

    internal class GlobalOpsSettingsBiz : BizObject
    {

        internal GlobalOpsSettingsBiz(AyContext dbcontext, long currentUserId, long userTranslationId, AuthorizationRoles UserRoles)
        {
            ct = dbcontext;
            UserId = currentUserId;
            UserTranslationId = userTranslationId;
            CurrentUserRoles = UserRoles;
            BizType = AyaType.GlobalOps;
        }

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




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

        //Get one
        internal async Task<GlobalOpsSettings> GetAsync(bool logTheGetEvent = true)
        {
            //first try to fetch from db
            var ret = await ct.GlobalOpsSettings.SingleOrDefaultAsync(m => m.Id == 1);
            if (logTheGetEvent && ret != null)

                await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, 1, BizType, AyaEvent.Retrieved), ct);


            //not in db then get the default
            if (ret == null)
                throw new System.Exception("GlobalOpsSettingsBiz::GetAsync -> Global OPS settings object not found in database!!");

            return ret;
        }



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

        //put
        internal async Task<bool> ReplaceAsync(GlobalOpsSettings putObject)
        {
            var dbObject = await ct.GlobalOpsSettings.FirstOrDefaultAsync(m => m.Id == 1);
            if (dbObject == null)
                throw new System.Exception("GlobalOpsSettingsBiz::ReplaceAsync -> Global settings object not found in database!!");

            //If backup time has changed then reset last backup as well as it might block from taking effect
            if (putObject.BackupTime.Hour != dbObject.BackupTime.Hour && putObject.BackupTime.Minute != dbObject.BackupTime.Minute)
            {
                putObject.LastBackup = DateTime.MinValue;
            }
            CopyObject.Copy(putObject, dbObject, "Id");
            ct.Entry(dbObject).OriginalValues["Concurrency"] = putObject.Concurrency;
            Validate(dbObject);
            if (HasErrors)
                return false;
            await ct.SaveChangesAsync();
            await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, 1, BizType, AyaEvent.Modified), ct);
            //Update the static copy for the server
            ServerGlobalOpsSettings.Initialize(dbObject);
            return true;
        }



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

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

            //currently nothing to validate
        }




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

    }//eoc


}//eons