using Microsoft.AspNetCore.Components;
using Microsoft.JSInterop;
using MP.FileData.DbModels;
using MP.Prog.Data;
using NLog;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

namespace MP.Prog.Components
{
    public partial class FileEditor : ComponentBase
    {
        #region Public Properties

        /// <summary>
        /// Item richiesto x display
        /// </summary>
        [Parameter]
        public FileModel currItem
        {
            get
            {
                return _currItem = null;
            }
            set
            {
                _currItem = value;
                CompareRev = false;
                LoadRevision();
                FixTitles();
            }
        }

        private static Logger Log = LogManager.GetCurrentClassLogger();
        [Parameter]
        public EventCallback<int> DataReset { get; set; }

        [Parameter]
        public EventCallback<int> DataUpdated { get; set; }

        [Parameter]
        public List<ArchMaccModel> MacList { get; set; }

        /// <summary>
        /// Rev richiesta (x confronto)
        /// </summary>
        [Parameter]
        public int ReqRev
        {
            get => SelRevDx;
            set
            {
                if (value > 0)
                {
                    CompareRev = true;
                    SelRevDx = value;
                }
                else
                {
                    CompareRev = false;
                }
            }
        }

        [Parameter]
        public List<TagModel> TagList { get; set; }

        #endregion Public Properties

        #region Public Methods

        public string CurrFileContent(string fullPath)
        {
            string answ = "";
            if (File.Exists(fullPath))
            {
                answ = File.ReadAllText(fullPath);
            }
            return answ;
        }

        #endregion Public Methods

        #region Protected Fields

        protected int numDiff = 0;

        #endregion Protected Fields

        #region Protected Properties

        [Inject]
        protected FileArchDataService FDService { get; set; }

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

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

        protected int SelRevDx
        {
            get => _selRevDx;
            set
            {
                if (_selRevDx != value)
                {
                    _selRevDx = value;
                    LoadRevision();
                    FixTitles();
                }
            }
        }

        protected int SelRevSx
        {
            get => _selRevSx;
            set
            {
                if (_selRevSx != value)
                {
                    _selRevSx = value;
                    // ricarico file SX
                    LoadRevision();
                    FixTitles();
                }
            }
        }

        #endregion Protected Properties

        #region Protected Methods

        protected override void OnParametersSet()
        {
            LoadRevision();
        }

        #endregion Protected Methods

        #region Private Fields

        private FileModel _currItem = new FileModel();
        private int _selRevDx = 0;
        private int _selRevSx = 0;

        #endregion Private Fields

        #region Private Properties

        private bool CompareRev { get; set; } = false;
        private string FileContDx { get; set; } = "";

        private string FileContSx { get; set; } = "";

        private List<int> ListRevDx
        {
            get
            {
                List<int> answ = new List<int>();
                for (int i = 0; i <= _currItem.Rev; i++)
                {
                    answ.Add(i);
                }
                return answ;
            }
        }

        private List<int> ListRevSx
        {
            get
            {
                List<int> answ = new List<int>() { 0 };
                for (int i = 1; i < SelRevDx; i++)
                {
                    answ.Add(i);
                }
                return answ;
            }
        }

        private string TitleDx { get; set; } = "Attuale";

        private string TitleSx { get; set; } = "Archivio";

        #endregion Private Properties

        #region Private Methods

        private async Task ApproveChange()
        {
            if (!await JSRuntime.InvokeAsync<bool>("confirm", "Sicuro di voler accettare la modifica del file selezionato generando una nuova revisione?"))
                return;

            if (_currItem != null)
            {
                await FDService.FileModApprove(_currItem, MServ.UserName);
                await DataUpdated.InvokeAsync(1);
            }
            else
            {
                Log.Error("_currItem null!");
            }
        }

        private async Task cancelUpdate()
        {
            await DataReset.InvokeAsync(0);
        }

        private async Task deleteRecord()
        {
            if (!await JSRuntime.InvokeAsync<bool>("confirm", "Sicuro di voler eliminare il file selezionato??"))
                return;

            if (_currItem != null)
            {
                await FDService.FileDelete(_currItem);
                await DataUpdated.InvokeAsync(1);
            }
            else
            {
                Log.Error("_currItem null!");
            }
        }

        private void DoCompare()
        {
            CompareRev = !CompareRev;
            if (CompareRev)
            {
                SelRevDx = _currItem.Rev;
            }
            LoadRevision();
            FixTitles();
        }

        /// <summary>
        /// Esporta da archivio a filesystem
        /// </summary>
        /// <returns></returns>
        private async Task ExportArchive()
        {
            if (!await JSRuntime.InvokeAsync<bool>("confirm", "Sicuro di voler sovrascrivere il programma salvato in rete con la versione (inattiva) selezionata?"))
                return;

            if (_currItem != null)
            {
                await DataReset.InvokeAsync(0);
                await FDService.FileExport(_currItem);
                await DataReset.InvokeAsync(0);
                await FDService.UpdateMachineArchive(_currItem.IdxMacchina, 1, false, false, MServ.UserName, true);
                await DataUpdated.InvokeAsync(1);
            }
            else
            {
                Log.Error("_currItem null!");
            }
        }

        private void FixTitles()
        {
            // sistemo titoli
            TitleSx = CompareRev ? $"Rev. {SelRevSx}" : "Archivio";
            TitleDx = CompareRev ? $"Rev. {SelRevDx}" : "Attuale";
        }

        private void LoadRevision()
        {
            if (CompareRev)
            {
                var reqSx = FDService.FileGetByKeyRev(_currItem.FileId, SelRevSx);
                var reqDx = FDService.FileGetByKeyRev(_currItem.FileId, SelRevDx);
                FileContSx = reqSx.FileStringContent;
                FileContDx = reqDx.FileStringContent;
            }
            else
            {
                FileContSx = _currItem.FileStringContent;
                FileContDx = CurrFileContent(_currItem.Path);
            }
            FixTitles();
        }

        private async Task RejectChange()
        {
            if (!await JSRuntime.InvokeAsync<bool>("confirm", "Sicuro di voler eliminare la modifica del file selezionato e sovrascrivere la versione in rete?"))
                return;

            if (_currItem != null)
            {
                await FDService.FileReject(_currItem);
                await DataUpdated.InvokeAsync(1);
            }
            else
            {
                Log.Error("_currItem null!");
            }
        }

        private async Task saveUpdate()
        {
            if (_currItem != null)
            {
                await FDService.FileUpdate(_currItem);
                await DataUpdated.InvokeAsync(1);
            }
            else
            {
                Log.Error("_currItem null!");
            }
        }

        #endregion Private Methods
    }
}