using Microsoft.AspNetCore.Components;
using NLog;
using System.Text;
using WebDoorCreator.Data.DbModels;
using WebDoorCreator.Data.DTO;
using WebDoorCreator.Data.Services;
using WebDoorCreator.UI.Data;

namespace WebDoorCreator.UI.Components.FilesMan
{
    public partial class CompoCompare
    {
        protected List<DoorOpTypeModel> tempDOT = new List<DoorOpTypeModel>();

        private Dictionary<string, FileDTO> files2Chk = new Dictionary<string, FileDTO>();
        private Dictionary<string, FileDTO> searchRecords = new Dictionary<string, FileDTO>();
        private Dictionary<string, FileDTO> files2Save = new Dictionary<string, FileDTO>();

        private int sendDataMaxVal = 100;

        private int sendDataNextVal = 0;

        private int sendDataVal = 0;

        private string titleMsg = "Scanning directories";
        private string scanMsg = "CLICK TO SCAN";

        [Parameter]
        public CompoSelectFilter actFilter { get; set; } = new CompoSelectFilter();

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

        [Inject]
        protected IConfiguration configuration { get; set; } = null!;

        protected double expTime { get; set; } = 6;
        protected bool isLoading { get; set; } = false;
        protected int numSteps { get; set; } = 4;
        protected bool show { get; set; } = false;

        protected string txtSx { get; set; } = "";

        protected string txtDx { get; set; } = "";

        [Inject]
        protected WebDoorCreatorService WDCService { get; set; } = null!;

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

        private int _totalCount { get; set; } = 0;

        private int currPage
        {
            get => actFilter.CurrPage;
            set
            {
                selUns = false;
                actFilter.CurrPage = value;
            }
        }

        private int numRecord
        {
            get => actFilter.NumRec;
            set => actFilter.NumRec = value;
        }

        private string rootPathNew
        {
            get => configuration.GetValue<string>("CompoBaseDirs:NewCompoDir");
        }

        private string rootPathOld
        {
            get => configuration.GetValue<string>("CompoBaseDirs:CurrCompoDir");
        }
        private string rootPathBck
        {
            get => configuration.GetValue<string>("CompoBaseDirs:BckCompoDir");
        }

        private bool selUns
        {
            get => _selUns;
            set
            {
                _selUns = value;
                selectAll(_selUns);
            }
        }

        private int totalCount
        {
            get => _totalCount;
            set
            {
                if (_totalCount != value)
                {
                    _totalCount = value;
                    updateRecordCount.InvokeAsync(value);
                }
            }
        }

        protected string btnCssClass(Core.Enum.fileStatus fStat, bool doAct)
        {
            string answ = "";
            if (fStat == Core.Enum.fileStatus.add && doAct)
            {
                answ = "btn-primary";
            }
            else if (fStat == Core.Enum.fileStatus.mod && doAct)
            {
                answ = "btn-warning";
            }
            else if (fStat == Core.Enum.fileStatus.rem && doAct)
            {
                answ = "btn-danger";
            }
            else
            {
                answ = "btn-secondary";
            }
            return answ;
        }

        protected string btnIcon(Core.Enum.fileStatus fStat)
        {
            string answ = "";
            if (fStat == Core.Enum.fileStatus.add || fStat == Core.Enum.fileStatus.mod)
            {
                answ = "fa-solid fa-circle-arrow-right";
            }
            else if (fStat == Core.Enum.fileStatus.rem)
            {
                answ = "fa-solid fa-square-minus";
            }
            return answ;
        }

        protected string btnTxt(Core.Enum.fileStatus fStat)
        {
            string answ = "";
            if (fStat == Core.Enum.fileStatus.add)
            {
                answ = "A";
            }
            else if (fStat == Core.Enum.fileStatus.mod)
            {
                answ = "U";
            }
            else if (fStat == Core.Enum.fileStatus.rem)
            {
                answ = "D";
            }
            return answ;
        }

        protected async Task changeDoAct(KeyValuePair<string, FileDTO> currObj)
        {
            await Task.Delay(1);
            files2Chk[currObj.Key].action = !files2Chk[currObj.Key].action;
        }

        protected async Task doSave()
        {
            await Task.Delay(1);
            //var sb = new StringBuilder();
            sendDataVal = 0;
            var updTask1 = Task.Run(() =>
            {
                files2Save = searchRecords.Where(x => x.Value.action).ToDictionary(x => x.Key, x => x.Value);
                foreach (var item in files2Save)
                {
                    string dir2chk = "";
                    var fileDirs = item.Key.Split("\\");

                    foreach (var dir in fileDirs.SkipLast(1))
                    {
                        dir2chk += $"\\{dir}";
                        if (!Directory.Exists($"{rootPathOld}{dir2chk}"))
                        {
                            Directory.CreateDirectory($"{rootPathOld}{dir2chk}");
                        }
                    }


                    if (item.Value.status == Core.Enum.fileStatus.add)
                    {
                        File.Copy($"{rootPathNew}\\{item.Key}", $"{rootPathOld}\\{item.Key}");
                    }
                    else if (item.Value.status == Core.Enum.fileStatus.mod)
                    {
                        ReplaceFile($"{rootPathNew}\\{item.Key}", $"{rootPathOld}\\{item.Key}");
                    }
                    else if (item.Value.status == Core.Enum.fileStatus.rem)
                    {
                        File.Delete($"{rootPathOld}\\{item.Key}");
                    }
                }
            }
                );
            await updTask1;
            sendDataVal = 30;
            var updTask2 = Task.Run(async () =>
            {
                await WDCService.ListValuesLuaNgeInsert(rootPathOld);
            });
            await updTask2;
            isLoading = true;
            await doScan();
            sendDataVal = 90;
        }

        [Inject]
        protected WDCUserService WDCUService { get; set; } = null!;
        protected static Logger Log = LogManager.GetCurrentClassLogger();

        protected async Task doScan()
        {
            files2Chk.Clear();
            searchRecords.Clear();
            Log.Info($"Component scan started by user {WDCUService.userId}");
            //await StartLongTimer();
            //isSendingData = true;
            isLoading = true;
            sendDataVal = 0;
            var updTask1 = Task.Run(async () =>
                    await WDCService.populateHws()
                );
            await updTask1;
            searchRecords = new Dictionary<string, FileDTO>();
            tempDOT.Clear();
            var updTask2 = Task.Run(async () =>
                    await WDCService.scanSrcDestDir(rootPathOld)
                );
            var oldFiles = await updTask2;
            sendDataVal = 30;
            var updTask3 = Task.Run(async () =>
                    await WDCService.scanSrcDestDir(rootPathNew)
                );
            var newFiles = await updTask3;
            sendDataVal = 60;
            //tempDOT = await WDCService.scanAndCompare();

            foreach (var item in newFiles)
            {
                if (oldFiles.ContainsKey(item.Key))
                {
                    if (oldFiles[item.Key].FileMD5 != item.Value.FileMD5)
                    {
                        item.Value.status = Core.Enum.fileStatus.mod;
                    }
                    oldFiles.Remove(item.Key);
                    //files2Chk.Add(item.Key, item.Value);
                }
                else
                {
                    item.Value.status = Core.Enum.fileStatus.add;
                }
                searchRecords.Add(item.Key, item.Value);
            }

            sendDataVal = 90;
            foreach (var item in oldFiles)
            {
                item.Value.status = Core.Enum.fileStatus.rem;
                searchRecords.Add(item.Key, item.Value);
            }

            searchRecords = searchRecords.Where(x => x.Value.status > 0).ToDictionary(x => x.Key, x => x.Value);
            await ReloadData();
            sendDataVal = 100;
            sendDataNextVal = 100;
            isLoading = false;
            if (searchRecords.Count == 0)
            {
                scanMsg = "THE DIRECTORIES HAVE NO DIFFERENCES";
            }
            Log.Info($"Component scan COMPLETED");
        }

        protected override async Task OnParametersSetAsync()
        {
            await ReloadData();
        }

        protected async Task ReloadData()
        {
            await Task.Delay(1);

            totalCount = searchRecords.Count;
            files2Chk = searchRecords
                                     .Skip(numRecord * (currPage - 1))
                                     .Take(numRecord)
                                     .ToDictionary(x => x.Key, x => x.Value);
            //await InvokeAsync(() => StateHasChanged());
        }
        protected void ReplaceFile(string FileToMoveAndDelete, string FileToReplace)
        {

            File.Replace(FileToMoveAndDelete, FileToReplace, null);
        }

        protected void selectAll(bool selUnsel)
        {
            foreach (var item in searchRecords)
            {
                item.Value.action = selUnsel;
            }
        }

        protected KeyValuePair<string, FileDTO> actFile { get; set; } = new KeyValuePair<string, FileDTO>();

        protected async Task showDiff(KeyValuePair<string, FileDTO> currFile, Core.Enum.fileStatus cStatus)
        {
            await Task.Delay(1);
            actFile = currFile;
            txtSx = "";
            txtDx = "";
            // in base al tipo di modifica leggo...
            switch (cStatus)
            {
                case Core.Enum.fileStatus.add:
                    txtSx = File.ReadAllText($"{rootPathNew}\\{currFile.Key}");
                    break;
                case Core.Enum.fileStatus.mod:
                    txtSx = File.ReadAllText($"{rootPathNew}\\{currFile.Key}");
                    txtDx = File.ReadAllText($"{rootPathOld}\\{currFile.Key}");
                    break;
                case Core.Enum.fileStatus.rem:
                    txtDx = File.ReadAllText($"{rootPathOld}\\{currFile.Key}");
                    break;
                case Core.Enum.fileStatus.none:
                default:
                    break;
            }
        }
    }
}