using Blazored.LocalStorage;
using Blazored.Modal;
using Blazored.Modal.Services;
using Blazorise.DataGrid;
using ValblazeProject.Models;
using Microsoft.AspNetCore.Components;
using Microsoft.Extensions.Localization;
using ValblazeProject.Modals;
using ValblazeProject.Services;
using ValblazeProject.Components;
using System.Collections.ObjectModel;
using System.ComponentModel;
using Microsoft.AspNetCore.Components.Forms;
using System.Linq;
using Microsoft.JSInterop;
using System.Collections.Specialized;
using Microsoft.AspNetCore.Components.Web;
using System.Text.Json;

namespace ValblazeProject.Pages
{
    public partial class Inventaire
    {
        /******************* Initialisation des attributs *******************/
        [Inject]
        public IStringLocalizer<List> Localizer { get; set; }

        [Inject]
        public IDataService DataService { get; set; }

        /// <summary>
        /// Gets or sets the java script runtime.
        /// </summary>
        [Inject]
        internal IJSRuntime JavaScriptRuntime { get; set; }

        private List<Item> items;
        private int totalItem;

        public List<Item> Jitems;

        private DataGrid<Item> dataGrid;
        private string _searchText;
        private int totalSizeByPage = 5;
        private bool _trie = false;


        // Gestion logs
        public ObservableCollection<InventoryAction> Actions { get; set; }

        public Item CurrentDragItem { get; set; }

        public Inventaire()
        {
            Actions = new ObservableCollection<InventoryAction>();
            Actions.CollectionChanged += OnActionsCollectionChanged;

            string fileName = "Inventory.json";
            string jsonString = File.ReadAllText(fileName);
            this.Jitems = JsonSerializer.Deserialize<List<Item>>(jsonString)!;
        }

        private void OnActionsCollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
        {
            JavaScriptRuntime.InvokeVoidAsync("Inventaire.AddActions", e.NewItems);
        }

        // Drag
        protected override async Task OnAfterRenderAsync(bool firstRender)
        {
            base.OnAfterRenderAsync(firstRender);

            if (!firstRender)
            {
                return;
            }

            StateHasChanged();
        }

        /******************* Attribut modifier *******************/
        private string search
        {
            get { return _searchText; }
            set
            {
                if(_searchText != value )
                {
                    _searchText = value;
                    SearchTextChange();
                }               
            }
        }

        private bool trieActive
        {
            get { return _trie; }
            set
            {
                if (_trie != value)
                {
                    _trie = value;
                    TrieChanged();
                }
            }
        }

        /******************* Méthodes *******************/
        /// <summary>
        /// Trie par ordre alphabétique 
        /// </summary>
        /// <returns></returns>
        public async Task TrieChanged()
        {
            await dataGrid.Reload();
            StateHasChanged();
        }


        /// <summary>
        /// Méthode de recherche
        /// </summary>
        /// <returns></returns>
        public async Task SearchTextChange()
        {
            dataGrid.CurrentPage = 1;
            await dataGrid.Reload();
            StateHasChanged();
        }

        /// <summary>
        /// Initialisation des données via un service
        /// </summary>
        /// <param name="e"></param>
        /// <returns></returns>
        private async Task OnReadData(DataGridReadDataEventArgs<Item> e)
        {
            if (e.CancellationToken.IsCancellationRequested)
            {
                return;
            }

            if (!e.CancellationToken.IsCancellationRequested)
            {
                items = await DataService.List();

                // Search
                if (!string.IsNullOrEmpty(_searchText))
                {
                    items = items.Where(i => i.DisplayName.Contains(_searchText)).ToList();
                }

                // Trie
                if (_trie)
                {
                    items = items.OrderBy(i => i.DisplayName).ToList();
                }

                // Gestion pagination
                totalItem = items.Count;
                int pageCourante = dataGrid.CurrentPage;
                items = items.Skip((pageCourante - 1) * totalSizeByPage).Take(totalSizeByPage).ToList();
                StateHasChanged();
            }
        }
    }
}