using Microsoft.AspNetCore.Components;
using Microsoft.JSInterop;
using MP.Data.DatabaseModels;
using MP.SPEC.Data;
using System.Diagnostics;

namespace MP.SPEC.Components
{
    public partial class ListPARAMS : IDisposable
    {
        #region Public Properties

        [Parameter]
        public EventCallback<bool> PagerResetReq { get; set; }

        [Parameter]
        public EventCallback<FluxLog> RecordSel { get; set; }

        [Parameter]
        public SelectFluxParams SelFilter { get; set; } = null!;

        [Parameter]
        public EventCallback<int> TotRecordChanged { get; set; }

        #endregion Public Properties

        #region Public Methods

        public string checkSelect(FluxLog selRecord)
        {
            string answ = "";
            if (currRecord != null)
            {
                try
                {
                    answ = (currRecord.IdxMacchina == selRecord.IdxMacchina && currRecord.dtEvento == selRecord.dtEvento && currRecord.CodFlux == selRecord.CodFlux) ? "table-info" : "";
                }
                catch
                { }
            }
            return answ;
        }

        protected override async Task OnParametersSetAsync()
        {
            await Task.Delay(1);
            // se sono live + parametri cambiati --> rileggo...
            if (SelFilter.LiveUpdate)
            {
                await reloadData(false);
            }
        }

        public void Dispose()
        {
            aTimer.Elapsed -= ElapsedTimer;
            MessageService.EA_PageUpdated -= MessageService_EA_PageUpdated;
            MessageService.EA_SearchUpdated -= OnSeachUpdated;
            aTimer.Stop();
            aTimer.Dispose();
        }

        public void ElapsedTimer(object? source, System.Timers.ElapsedEventArgs e)
        {
            if (!isLoading && LiveUpdate)
            {
                aTimer.Stop();
                // inizio misura esecuzione
                Stopwatch stopWatch = new Stopwatch();
                stopWatch.Start();
                var pUpd = Task.Run(async () =>
                {
                    await Task.Delay(1);
                    await InvokeAsync(() => reloadData(true));
                });
                pUpd.Wait();
                // misuro tempo esecuzione
                stopWatch.Stop();
                TimeSpan ts = stopWatch.Elapsed;
                int deltaTime = RefreshPeriod - (int)ts.TotalMilliseconds;
                aTimer.Interval = deltaTime > 100 ? deltaTime : 100;
                aTimer.Start();
            }
        }

        public async Task reloadData(bool setChanged)
        {
            isLoading = true;
            DateTime limitData = DateTime.Now;
            if (SelDtMax != null)
            {
                limitData = (DateTime)SelDtMax;
            }
            SearchRecords = await MDService.FluxLogGetLastFilt(limitData, SelMacchina, SelFlux, MaxRecord);
            totalCount = SearchRecords.Count;
            ListRecords = SearchRecords.Skip(numRecord * (currPage - 1)).Take(numRecord).ToList();
            await Task.Delay(1);
            if (setChanged)
            {
                await InvokeAsync(() => StateHasChanged());
            }
            isLoading = false;
        }

        public void StartTimer()
        {
            aTimer = new System.Timers.Timer(RefreshPeriod);
            aTimer.Elapsed += ElapsedTimer;
            aTimer.Enabled = true;
            aTimer.Start();
        }

        #endregion Public Methods

        #region Protected Properties

        [Inject]
        protected IJSRuntime JSRuntime { get; set; } = null!;

        [Inject]
        protected MpDataService MDService { get; set; } = null!;

        [Inject]
        protected MessageService MessageService { get; set; } = null!;

        protected int RefreshPeriod
        {
            get => SelFilter.TempoAgg;
        }

        #endregion Protected Properties

        #region Protected Methods

        protected override async Task OnInitializedAsync()
        {
            MessageService.EA_PageUpdated += MessageService_EA_PageUpdated;
            MessageService.EA_SearchUpdated += OnSeachUpdated;
            StartTimer();

            await reloadData(true);
        }

        //protected int RefreshPeriod { get; set; } = 5000;
        protected async void OnSeachUpdated()
        {
            await InvokeAsync(() =>
            {
                PagerResetReq.InvokeAsync(false);
                //currPage = 1;
                Task task = UpdateData();
                StateHasChanged();
            });
        }

        protected async Task resetSel()
        {
            currRecord = null;
            await RecordSel.InvokeAsync(null);
        }

        protected async Task selRecord(FluxLog selRec)
        {
            currRecord = selRec;
            await RecordSel.InvokeAsync(selRec);
        }

        protected async Task UpdateData()
        {
            currRecord = null;
            await reloadData(true);
        }

        #endregion Protected Methods

        #region Private Fields

        private static System.Timers.Timer aTimer = null!;

        private int _totalCount = 0;
        private FluxLog? currRecord = null;
        private List<FluxLog>? ListRecords;
        private List<FluxLog>? SearchRecords;

        #endregion Private Fields

        #region Private Properties

        private int currPage
        {
            get => MessageService.currPage;
            set => MessageService.currPage = value;
        }

        private bool isLoading { get; set; } = false;

        private bool LiveUpdate
        {
            get => SelFilter.LiveUpdate;
        }

        private int MaxRecord
        {
            get => SelFilter.MaxRecord;
        }

        private int numRecord
        {
            get => MessageService.numRecord;
            set => MessageService.numRecord = value;
        }

        private string SelFlux
        {
            get => SelFilter.CodFlux;
        }

        private string SelMacchina
        {
            get => SelFilter.IdxMacchina;
        }
        private DateTime? SelDtMax
        {
            get => SelFilter.dtMax;
        }

        private int totalCount
        {
            get => _totalCount;
            set
            {
                if (_totalCount != value)
                {
                    _totalCount = value;
                    TotRecordChanged.InvokeAsync(value);
                }
            }
        }

        #endregion Private Properties

        #region Private Methods

        private async void MessageService_EA_PageUpdated()
        {
            await reloadData(true);
        }

        #endregion Private Methods
    }
}