using GWMS.Data;
using GWMS.Data.DatabaseModels;
using GWMS.Data.DTO;
using GWMS.UI.Data;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Components;
using Microsoft.JSInterop;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace GWMS.UI.Pages
{
    [Authorize(Roles = "SuperAdmin, Admin, User")]
    public partial class UserManager : ComponentBase, IDisposable
    {
        #region Private Fields

        private UserModel currRecord = null;
        private List<UserModel> ListRecords;
        private List<PlantDTO> PlantsList;
        private List<UserModel> SearchRecords;
        private List<SupplierModel> SuppliersList;
        private List<TransporterModel> TransportersList;

        #endregion Private Fields

        #region Private Properties

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

        private int _numRecord { get; set; } = 10;
        private UserLevel _selLevel { get; set; } = UserLevel.ND;
        private int _selPlantId { get; set; } = 0;
        private int _selSuppId { get; set; } = 0;
        private int _selTraspId { get; set; } = 0;

        private int currPage
        {
            get => _currPage;
            set
            {
                if (_currPage != value)
                {
                    _currPage = value;
                    var pUpd = Task.Run(async () => await ReloadData());
                    pUpd.Wait();
                }
            }
        }

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

        private int numRecord
        {
            get => _numRecord;
            set
            {
                if (_numRecord != value)
                {
                    _numRecord = value;
                    var pUpd = Task.Run(async () => await ReloadData());
                    pUpd.Wait();
                }
            }
        }

        private UserLevel SelLevel
        {
            get => _selLevel;
            set
            {
                if (_selLevel != value)
                {
                    _selLevel = value;
                    var pUpd = Task.Run(async () => await ReloadData());
                    pUpd.Wait();
                }
            }
        }

        private int SelPlantId
        {
            get => _selPlantId;
            set
            {
                if (_selPlantId != value)
                {
                    _selPlantId = value;
                    var pUpd = Task.Run(async () => await ReloadData());
                    pUpd.Wait();
                }
            }
        }

        private int SelSupplierId
        {
            get => _selSuppId;
            set
            {
                if (_selSuppId != value)
                {
                    _selSuppId = value;
                    var pUpd = Task.Run(async () => await ReloadData());
                    pUpd.Wait();
                }
            }
        }

        private int SelTransporterId
        {
            get => _selTraspId;
            set
            {
                if (_selTraspId != value)
                {
                    _selTraspId = value;
                    var pUpd = Task.Run(async () => await ReloadData());
                    pUpd.Wait();
                }
            }
        }

        #endregion Private Properties

        #region Protected Properties

        [Inject]
        protected MessageService AppMService { get; set; }

        [Inject]
        protected GWMSDataService DataService { get; set; }

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

        [Inject]
        protected NavigationManager NavManager { 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 Task ReloadData()
        {
            isLoading = true;
            SearchRecords = await DataService.UsersGetFilt(SelLevel, SelPlantId, SelSupplierId, SelTransporterId);
            ListRecords = SearchRecords.Skip(numRecord * (currPage - 1)).Take(numRecord).ToList();
            isLoading = false;
        }

        #endregion Private Methods

        #region Protected Methods

        protected void Edit(UserModel selRecord)
        {
            currRecord = selRecord;
        }

        protected void ForceReload(int newNum)
        {
            numRecord = newNum;
        }

        protected void ForceReloadPage(int newNum)
        {
            currPage = newNum;
        }

        protected override async Task OnInitializedAsync()
        {
            AppMService.ShowSearch = true;
            AppMService.PageName = "Utenti";
            AppMService.PageIcon = "fas fa-users pr-2";
            AppMService.EA_SearchUpdated += OnSeachUpdated;
            await ReloadAllData();
        }

        protected async Task ReloadAllData()
        {
            PlantsList = await DataService.PlantsGetAll();
            SuppliersList = await DataService.SuppliersGetAll();
            TransportersList = await DataService.TransportersGetAll();
            await ReloadData();
        }

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

        protected void Select(UserModel selRecord)
        {
            // applico filtro da selezione
            currRecord = selRecord;
        }

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

        #endregion Protected Methods

        #region Public Methods

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

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

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

        #endregion Public Methods
    }
}