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

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

        public SelectFluxParams? LastFilter = null;

        #endregion Public Fields

        #region Public Properties

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

        [Parameter]
        public EventCallback<FluxLogModel> 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(FluxLogModel 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;
        }

        public void Dispose()
        {
            aTimer.Elapsed -= ElapsedTimer;
            aTimer.Stop();
            aTimer.Close();
            aTimer.Dispose();
            currRecord = null;
            SearchRecords = null;
            ListRecords = null;
            GC.Collect();
        }

        public void ElapsedTimer(object? source, System.Timers.ElapsedEventArgs e)
        {
            // controlo se URL diverso da apgina params...
            if (!NavManager.Uri.Contains("PARAMS"))
            {
                aTimer.Enabled = false;
            }
            else
            {
                aTimer.Enabled = true;
                if (!isLoading && LiveUpdate)
                {
                    // 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;
                    double deltaTime = RefreshPeriod - ts.TotalMilliseconds;
                    // aggiungo fattore di disturbo random...
                    double mFact = 0.01 * random.Next(80, 120);
                    aTimer.Interval = mFact * (deltaTime > 100 ? deltaTime : 100);
                    //aTimer.Start();
                }
            }
        }

        public async Task reloadData(bool setChanged)
        {
            isLoading = true;
            SearchRecords = null;
            ListRecords = null;
            DateTime dataFrom = DateTime.Today.AddMonths(-1);
            DateTime dataTo = DateTime.Now.AddDays(1);
            if (SelFilter != null && SelFilter.dtMin != null)
            {
                dataFrom = (DateTime)SelFilter.dtMin;
            }
            if (SelDtMax != null)
            {
                dataTo = (DateTime)SelDtMax;
            }

            SearchRecords = await MDService.FluxLogGetLastFiltAsync(dataTo, dataFrom, SelMacchina, SelFlux, MaxRecord, RefreshPeriod / 1000);
            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.AutoReset = true;
            aTimer.Start();
        }

        #endregion Public Methods

        #region Protected Fields

        protected Random random = new Random();

        #endregion Protected Fields

        #region Protected Properties

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

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

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

        #endregion Protected Properties

        #region Protected Methods

        protected override void OnInitialized()
        {
            StartTimer();
        }

        protected override async Task OnParametersSetAsync()
        {
            // se sono cambiati --> rileggo...
            if (!lastFilter.Equals(SelFilter))
            {
                lastFilter = SelFilter.clone();
                await reloadData(true);
            }
        }

        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(FluxLogModel selRec)
        {
            currRecord = selRec;
            SelFilter.IdxMacchina = selRec.IdxMacchina;
            SelDtMax = selRec.dtEvento;
            // imposto pag 1 filtro
            SelFilter.CurrPage = 1;
            await reloadData(false);
            await RecordSel.InvokeAsync(selRec);
            await PagerResetReq.InvokeAsync(true);
        }

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

        #endregion Protected Methods

        #region Private Fields

        private int _totalCount = 0;
        private System.Timers.Timer aTimer = null!;
        private FluxLogModel? currRecord = null;

        private List<FluxLogModel>? ListRecords;

        private List<FluxLogModel>? SearchRecords;

        #endregion Private Fields

        #region Private Properties

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

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

        private SelectFluxParams lastFilter { get; set; } = new SelectFluxParams() { CurrPage = -1 };

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

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

        [Inject]
        private NavigationManager NavManager { get; set; } = null!;

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

        private DateTime? SelDtMax
        {
            get => SelFilter.dtMax;
            set => SelFilter.dtMax = value;
        }

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

        private string SelMacchina
        {
            get => SelFilter.IdxMacchina;
        }

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

        #endregion Private Properties

        #region Private Methods

        private string traduci(string lemma)
        {
            var answ = MDService.Traduci(lemma, "IT");
            return answ;
        }

        #endregion Private Methods
    }
}