using Microsoft.AspNetCore.Components;
using Microsoft.JSInterop;
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 ReportODL : ComponentBase, IDisposable
    {
        #region Private Fields

        private MP.Data.DbModels.StatsODL currRecord = null;

        private List<MP.Data.DbModels.StatsODL> ListRecords;
        private List<MP.Data.DbModels.StatsODL> SearchRecords;

        #endregion Private Fields

        #region Protected Fields

        protected string fileName = "ODL.csv";

        #endregion Protected Fields

        #region Private Properties

        private SelectData currFilter
        {
            get
            {
                return MessageService.ODL_Filter;
            }
            set
            {
                MessageService.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;

        #endregion Private Properties

        #region Protected Properties

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

        [Inject]
        protected MessageService MessageService { 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;
            }
        }

        #endregion Protected Properties

        #region Private Methods

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

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

        private async Task ReloadData()
        {
            SearchRecords = await StatService.StatOdlGetAll(currFilter, MessageService.SearchVal);
            ListRecords = SearchRecords.Skip(numRecord * (currPage - 1)).Take(numRecord).ToList();
        }

        #endregion Private Methods

        #region Protected Methods

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

        protected async Task ForceReload(int newNum)
        {
            numRecord = newNum;
            await ReloadData();
        }

        protected async Task ForceReloadPage(int newNum)
        {
            currPage = newNum;
            await ReloadData();
        }

        protected override async Task OnInitializedAsync()
        {
            clearFile();
            numRecord = 10;
            MessageService.ShowSearch = false;
            MessageService.PageName = "Report ODL/Comm.";
            MessageService.PageIcon = "fa fa-book";
            MessageService.EA_SearchUpdated += OnSeachUpdated;
            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 async Task UpdateData()
        {
            currRecord = null;
            await ReloadData();
        }

        #endregion Protected Methods

        #region Public Methods

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

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

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

        #endregion Public Methods
    }
}