using Microsoft.AspNetCore.Components;
using Microsoft.JSInterop;
using MP.Data.DbModels;
using MP.Data.Services;
using MP.Stats.Data;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

namespace MP.Stats.Pages
{
    public partial class Energy : ComponentBase, IDisposable
    {
        #region Public Methods

        public void Dispose()
        {
            MServ.EA_SearchUpdated -= OnSeachUpdated;
        }

        public async void OnSeachUpdated()
        {
            await InvokeAsync(() =>
             {
                 Task task = UpdateData();
                 StateHasChanged();
             });
        }

        #endregion Public Methods

        #region Protected Fields

        protected string fileName = "ODL_Energy.csv";

        #endregion Protected Fields

        #region Protected Properties

        [Inject]
        protected IJSRuntime JSRuntime { get; set; }

        [Inject]
        protected Data.MessageService MServ { get; set; }

        [Inject]
        protected NavigationManager NavManager { get; set; }

        [Inject]
        protected MpStatsService StatService { get; set; }

        protected int totalCount
        {
            get
            {
                int answ = 0;
                if (SearchRecords != null)
                {
                    answ = SearchRecords.Count;
                }
                return answ;
            }
        }

        [Inject]
        protected TranslateSrv TradService { get; set; }

        #endregion Protected Properties

        #region Protected Methods

        protected string checkSelect(int IdxODL)
        {
            string answ = "";
            if (currRecord != null)
            {
                try
                {
                    answ = (currRecord.IdxOdl == IdxODL) ? "table-info" : "";
                }
                catch
                { }
            }
            return answ;
        }

        protected async Task DoFilter(SelectData newFilter)
        {
            clearFile();
            SearchRecords = null;
            ListRecords = null;
            currFilter = newFilter;
            await ReloadData();
        }

        /// <summary>
        /// recupero UM del flusso indicato
        /// </summary>
        /// <param name="CodFlux"></param>
        /// <returns></returns>
        protected string GetUM(string CodFlux)
        {
            return StatService.FluxGetUM(CodFlux);
        }

        protected override async Task OnInitializedAsync()
        {
            clearFile();
            numRecord = 10;
            MServ.ShowSearch = false;
            MServ.PageName = "ENERGY";
            MServ.PageIcon = "oi oi-bar-chart";
            MServ.EA_SearchUpdated += OnSeachUpdated;
            await LoadConfData();
            await ReloadData();
        }

        protected void ResetData()
        {
            clearFile();
            StatService.rollBackEdit(currRecord);
            currRecord = null;
        }

        protected async Task ResetFilter(SelectData newFilter)
        {
            clearFile();
            currRecord = null;
            SearchRecords = null;
            ListRecords = null;
            currFilter = SelectData.Init(5, 7);
            await ReloadData();
        }

        protected decimal righDiv(decimal num, decimal den)
        {
            if (den == 0)
            {
                den = 1;
            }
            decimal answ = num / den;
            return answ;
        }

        protected void SetNumRec(int newNum)
        {
            numRecord = newNum;
            DisplayData();
        }

        protected void SetPage(int newNum)
        {
            currPage = newNum;
            DisplayData();
        }

        protected async Task ToggleChart(bool doShow)
        {
            ShowCharts = !ShowCharts;
            if (ShowCharts)
            {
                await ReloadData();
            }
        }

        /// <summary>
        /// Traduzione lemma richeisto (lingua default="IT")
        /// </summary>
        /// <param name="Lemma"></param>
        /// <returns></returns>
        protected string Traduci(string Lemma)
        {
            return TradService.Traduci(Lemma);
        }

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

        #endregion Protected Methods

        #region Private Fields

        private List<ConfigModel> ConfigList;
        private OdlEnergyModel currRecord = null;

        private bool dynMode = false;
        private List<OdlEnergyModel> ListRecords;
        private int numCount = 1;
        private int numTotEn = 1;
        private List<OdlEnergyModel> SearchRecords;

        #endregion Private Fields

        #region Private Properties

        private SelectData currFilter
        {
            get
            {
                return MServ.ODL_Filter;
            }
            set
            {
                MServ.ODL_Filter = value;
            }
        }

        private int currPage { get; set; } = 1;

        private string fullPath
        {
            get => $"{Directory.GetCurrentDirectory()}\\temp\\{fileName}";
        }

        private bool isLoading { get; set; } = false;
        private int numRecord { get; set; } = 10;
        private bool ShowCharts { get; set; } = false;

        #endregion Private Properties

        #region Private Methods

        private async void clearFile()
        {
            await Task.Run(() => File.Delete(fullPath));
        }

        private string convVal(string chiave)
        {
            string answ = "";
            if (ConfigList != null && ConfigList.Count > 0)
            {
                var searchRec = ConfigList.First(x => x.Chiave == chiave);
                if (searchRec != null)
                {
                    answ = searchRec.Valore;
                }
            }
            return answ;
        }

        private void DisplayData()
        {
            ListRecords = SearchRecords
                            .Skip(numRecord * (currPage - 1))
                            .Take(numRecord)
                            .ToList();
        }

        private async Task ExportCsv()
        {
            isLoading = true;
            // salvo davvero!
            await Egw.Core.Utils.SaveToCsv(SearchRecords, fullPath, ';');
            isLoading = false;
        }

        private async Task LoadConfData()
        {
            ConfigList = await StatService.ConfigGetAll();
            dynMode = convVal("STATS_EnergyMode") == "Dynamic";
            var sNumCount = convVal("STATS_EnergyNumCount");
            int.TryParse(convVal("STATS_EnergyNumCount"), out numCount);
            int.TryParse(convVal("STATS_EnergyNumTotEn"), out numTotEn);
        }

        private async Task ReloadData()
        {
            SearchRecords = await StatService.StatOdlEnergyGetAll(currFilter, MServ.SearchVal);
            DisplayData();
        }

        #endregion Private Methods
    }
}