using Comal.Classes;
using InABox.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using InABox.Clients;
using InABox.Configuration;
using InABox.DynamicGrid;
using System.Diagnostics;
using System.IO;
using InABox.WPF;
using InABox.Wpf;
using System.ComponentModel;
using InABox.Scripting;
using System.Reflection;
using System.Collections.Immutable;
using StagingManufacturingPacketComponent = Comal.Classes.StagingManufacturingPacketComponent;
using System.Threading.Tasks;
using NPOI.SS.Formula.Functions;
using Columns = InABox.Core.Columns;

namespace PRSDesktop
{
    [Caption("Staging Panel Settings")]
    public class StagingPanellSettings : BaseObject, IGlobalConfigurationSettings
    {
        [Caption("PDF Markup Program Pathway", IncludePath = false)]
        [FileNameEditor]
        public string MarkupPathway { get; set; }

        [FolderEditor(Environment.SpecialFolder.CommonDocuments)]
        public string SetoutsFolder { get; set; }

        [ScriptEditor]
        public string? Script { get; set; }

        [IntegerEditor(Caption = "Maximum Document Size (MB)", ToolTip = "The user will be warned when uploading documents which are larger than this size in megabytes. Set to zero for no maximum.")]
        public int MaximumDocumentSize { get; set; }

        public StagingPanellSettings()
        {
            MarkupPathway = "";
            SetoutsFolder = "";
            Script = null;
            MaximumDocumentSize = 0;
        }

        public string DefaultScript()
        {
            return @"
using PRSDesktop;
using InABox.Core;
using System.Collections.Generic;

public class Module
{
    /*public void CustomiseSetouts(CustomiseSetoutsArgs args)
    {
        // Perform customisation on the setouts when they are added to the 'Staged Documents' grid.
    }*/
}";
        }
    }

    public class CustomiseSetoutsArgs
    {
        public IReadOnlyList<Tuple<StagingSetout, Document>> Setouts;

        public CustomiseSetoutsArgs(IReadOnlyList<Tuple<StagingSetout, Document>> setouts)
        {
            Setouts = setouts;
        }
    }

    /// <summary>
    /// Interaction logic for StagingPanel.xaml
    /// </summary>
    public partial class StagingPanel : UserControl, IPanel<StagingSetout>
    {
        private StagingPanellSettings _settings = new StagingPanellSettings();
        
        /// <summary>
        /// The currently selected setout.
        /// </summary>
        private StagingSetout? selectedSetout;

        /// <summary>
        /// All currently selected setouts; <see cref="selectedSetout"/> will be a member of this list.
        /// </summary>
        private List<StagingSetout> selectedSetouts = new();

        private CoreTable _templateGroups = null!;

        #region Script Stuff

        private MethodInfo? _customiseSetoutsMethod;
        private MethodInfo? CustomiseSetoutsMethod
        {
            get
            {
                EnsureScript();
                return _customiseSetoutsMethod;
            }
        }
        private object? _scriptObject;
        private object? ScriptObject
        {
            get
            {
                EnsureScript();
                return _scriptObject;
            }
        }
        private ScriptDocument? _script;
        private ScriptDocument? Script
        {
            get
            {
                EnsureScript();
                return _script;
            }
        }
        private void EnsureScript()
        {
            if (_script is null && !_settings.Script.IsNullOrWhiteSpace())
            {
                _script = new ScriptDocument(_settings.Script);
                if (!_script.Compile())
                {
                    throw new Exception("Script in Staging Panel Settings failed to compile!");
                }
                _scriptObject = _script?.GetObject();
                _customiseSetoutsMethod = _script?.GetMethod(methodName: "CustomiseSetouts");
            }
        }

        #endregion

        public StagingPanel()
        {
            InitializeComponent();
            SectionName = nameof(StagingPanel);
        }

        public void Setup()
        {
            _settings = new GlobalConfiguration<StagingPanellSettings>().Load();
            
            _templateGroups = new Client<ManufacturingTemplateGroup>().Query();
            
            MarkUpButton.Visibility = Security.IsAllowed<CanMarkUpSetouts>() ? Visibility.Visible : Visibility.Hidden;
            RejectButton.Visibility = Security.IsAllowed<CanApproveSetouts>() ? Visibility.Visible : Visibility.Hidden;
            ApproveButton.Visibility = Security.IsAllowed<CanApproveSetouts>() ? Visibility.Visible : Visibility.Hidden;
            ProcessButton.Visibility = Security.IsAllowed<CanApproveSetouts>() ? Visibility.Visible : Visibility.Hidden;

            //stagingSetoutGrid.ScanFiles(_settings.SetoutsFolder);
            stagingSetoutGrid.PanelSettings = _settings;
            stagingSetoutGrid.Refresh(true, false);
            SetoutComponentGrid.Refresh(true, false);
            
        }

        private bool CanViewPackets() => MainPanel.View != DynamicSplitPanelView.Master && NestedPanel.View != DynamicSplitPanelView.Master;

        private void NestedPanel_OnChanged(object sender, DynamicSplitPanelSettings e)
        {
            if(CanViewPackets())
            {
                ManufacturingPacketList.Setout = selectedSetout;
                SetoutComponentGrid.StagingSetout = selectedSetout;
            }
        }

        #region Document Viewer

        public enum DocumentMode
        {
            Markup,
            Complete,
            Locked
        }
        private DocumentMode _mode;
        private DocumentMode Mode
        {
            get => _mode;
            set  => SetMode(value);
        }

        private void SetMode(DocumentMode mode)
        {
            _mode = mode;
            if (_mode == DocumentMode.Markup)
            {
                MarkUpButton.Content = "Mark Up";
                MarkUpButton.IsEnabled = Document != null && !Document.Approved;
                UpdateOriginalButton.Visibility =
                    Document != null && !String.Equals(Document.DocumentLink.CRC, selectedSetout?.OriginalCRC)
                        ? Visibility.Visible
                        : Visibility.Collapsed;
                ProcessButton.IsEnabled = Document != null && Document.Approved;
                RejectButton.IsEnabled = Document != null && !Document.Approved;
                ApproveButton.IsEnabled = Document != null;
            }
            else if (_mode == DocumentMode.Complete)
            {
                MarkUpButton.Content = "Complete";
                MarkUpButton.IsEnabled = Document != null;
                UpdateOriginalButton.Visibility = Visibility.Collapsed;
                ProcessButton.IsEnabled = false;
                RejectButton.IsEnabled = false;
                ApproveButton.IsEnabled = false;
            }
            else if (_mode == DocumentMode.Locked)
            {
                MarkUpButton.Content = "Locked";
                MarkUpButton.IsEnabled = false;
                UpdateOriginalButton.Visibility = Visibility.Collapsed;
                ProcessButton.IsEnabled = false;
                RejectButton.IsEnabled = false;
                ApproveButton.IsEnabled = false;
            }
        }

        private StagingSetoutDocument? _document;

        private StagingSetoutDocument? Document
        {
            get => _document;
            set
            {
                _document = value;
                if(_document is not null)
                {
                    ApproveButton.Content = _document.Approved ? "Unapprove" : "Approve";
                }
            }
        }

        private byte[]? _documentdata = null;

        private void ClearDocuments()
        {
            Document = null;
            RenderDocuments(null);
        }

        private List<byte[]>? GetDocuments(StagingSetoutDocument? document)
        {
            if(document is null)
            {
                return null;
            }
            var table = new Client<Document>().Query(
                new Filter<Document>(x => x.ID).IsEqualTo(document.DocumentLink.ID),
                Columns.None<Document>().Add(x => x.Data));
            var first = table.Rows.FirstOrDefault();
            if (first is null)
                return null;
            _documentdata = first.Get<Document, byte[]>(x => x.Data);
            return ImageUtils.RenderPDFToImageBytes(_documentdata);
        }
        
        private void RenderDocuments(List<byte[]>? documents)
        {
            DocumentViewer.Children.Clear();
            if(documents is not null)
            {
                foreach (var image in documents)
                {
                    DocumentViewer.Children.Add(new Image
                    {
                        Source = ImageUtils.LoadImage(image),
                        Margin = new Thickness(0, 0, 0, 20)
                    });
                }
            }
        }

        private void ProcessButton_Click(object sender, RoutedEventArgs e)
        {
            bool bulkApprove = false;
            if (selectedSetouts.Count > 1)
            {
                if (MessageBox.Show("Bulk approve? (Skip individual setout approval)", "Continue?", MessageBoxButton.OKCancel) == MessageBoxResult.OK)
                {
                    bulkApprove = true;
                    Progress.Show("Approving Setouts..");
                }
            }

            if (selectedSetouts.Any(x => x.UnapprovedDocuments > 0))
            {
                MessageBox.Show("Cannot process setouts with unapproved documents.");
                Progress.Close();
                return;
            }

            if (selectedSetouts.Any(x => x.JobLink.ID == Guid.Empty))
            {
                MessageBox.Show("Cannot process setout without a linked job.");
                Progress.Close();
                return;
            }

            if (ManufacturingPacketList.Packets.Any(x => x.Template.ID == Guid.Empty))
            {
                MessageBox.Show("Cannot process manufacturing packets without templates.");
                Progress.Close();
                return;
            }

            if (selectedSetouts.Any(x => x.Packets == 0))
            {
                if (MessageBox.Show("Warning: some setouts do not have any manufacturing packets: are you sure you wish to proceed?", "Warning", MessageBoxButton.YesNoCancel) != MessageBoxResult.Yes)
                {
                    Progress.Close();
                    return;
                }
            }



            string message = "";

            foreach (var item in selectedSetouts)
            {
                if (bulkApprove)
                    Progress.Show("Working on " + item.Number);
                var returnstring = ApproveSetout(item, bulkApprove);
                if (!string.IsNullOrWhiteSpace(returnstring))
                    message = message + returnstring + Environment.NewLine;
            }

            if (bulkApprove)
                Progress.Close();

            new Client<StagingSetout>().Save(selectedSetouts, "Updated from staging screen");
            selectedSetout = null;
            Refresh();

            if (!message.IsNullOrWhiteSpace())
            {
                MessageBox.Show($"Result:\n{message}");
            }
            MainPanel.View = DynamicSplitPanelView.Combined;
            NestedPanel.View = DynamicSplitPanelView.Master;
        }

        private string ApproveSetout(StagingSetout item, bool bulkapprove)
        {
            if (item.Group.ID == Guid.Empty)
            {
                var message = "Setout has no group assigned";
                if (Security.IsAllowed<CanApproveSetoutsWithoutGroup>())
                {
                    if (MessageBox.Show(message + ", continue?", "Continue?", MessageBoxButton.OKCancel) != MessageBoxResult.OK)
                        return "";
                }
                else
                {
                    MessageBox.Show(message + ", please assign a group!");
                    return "";
                }
            }

            var setoutDocument = new Client<StagingSetoutDocument>()
                .Query(
                    new Filter<StagingSetoutDocument>(x => x.EntityLink.ID).IsEqualTo(item.ID),
                    Columns.None<StagingSetoutDocument>().Add(x => x.ID, x => x.DocumentLink.ID, x => x.DocumentLink.FileName))
                .ToObjects<StagingSetoutDocument>().FirstOrDefault();

            if (setoutDocument is null)
                return "";

            var setout = new Client<Setout>()
                .Query(
                    new Filter<Setout>(x => x.Number).IsEqualTo(item.Number),
                    Columns.Required<Setout>().Add(x => x.ID))
                .ToObjects<Setout>().FirstOrDefault();

            string result;
            //setout already exists - create new setoutdoc and supercede old ones
            if (setout is not null)
            {
                if (!bulkapprove)
                    if (MessageBox.Show("Supercede existing documents?", "Proceed?", MessageBoxButton.YesNo) != MessageBoxResult.Yes)
                        return "";

                setout.Group.ID = item.Group.ID;

                item.Setout.ID = setout.ID;

                var setoutdoc = new SetoutDocument();
                setoutdoc.EntityLink.ID = setout.ID;
                setoutdoc.DocumentLink.ID = setoutDocument.DocumentLink.ID;

                var setoutdocs = new List<SetoutDocument>
                {
                    setoutdoc
                };

                CoreTable oldDocsTable = new Client<SetoutDocument>().Query(
                    new Filter<SetoutDocument>(x => x.EntityLink.ID).IsEqualTo((Guid)setout.ID)
                    .And(x => x.DocumentLink.ID).IsNotEqualTo(item.Group.OptimizationDocument.ID)
                    );
                foreach (var row in oldDocsTable.Rows)
                {
                    var oldDoc = row.ToObject<SetoutDocument>();
                    if (oldDoc.Superceded == DateTime.MinValue)
                    {
                        oldDoc.Superceded = DateTime.Now;
                        setoutdocs.Add(oldDoc);
                    }
                }
                new Client<SetoutDocument>().Save(setoutdocs, "Updated from Staging Screen");
                new Client<Setout>().Save((Setout)setout, "Updated from Staging Screen");

                result = item.Number + " Superceded";
            }
            //no setout for this pdf - create new
            else
            {
                setout = new Setout
                {
                    Number = item.Number
                };
                setout.JobLink.ID = item.JobLink.ID;
                setout.Group.ID = item.Group.ID;

                var editor = new DynamicDataGrid<Setout>();
                editor.OnAfterSave += (editor, items) =>
                {
                    CreateSetoutDocument(setout, item, setoutDocument);
                };

                if (!bulkapprove)
                {
                    if (!editor.EditItems(new[] { setout }))
                    {
                        MessageBox.Show("Setout Creation Cancelled");
                        return "";
                    }
                    else
                        result = item.Number + " Created";
                }
                else
                {
                    new Client<Setout>().Save(setout, "Added from staging screen");
                    CreateSetoutDocument(setout, item, setoutDocument);
                    result = item.Number + " Created";
                }
            }

            var tuples = new List<Tuple<ManufacturingPacket, StagingManufacturingPacket>>();
            var stagingPackets = new Client<StagingManufacturingPacket>()
                .Query(
                    new Filter<StagingManufacturingPacket>(x => x.StagingSetout.ID).IsEqualTo(item.ID),
                    Columns.Required<StagingManufacturingPacket>().Add(x => x.ID)
                        .Add(x => x.Serial)
                        .Add(x => x.Title)
                        .Add(x => x.Quantity)
                        .Add(x => x.BarcodeQuantity)
                        .Add(x => x.Watermark)
                        .Add(x => x.Group.Watermark)
                        .Add(x => x.Location)
                        .Add(x => x.ITP.ID)
                        .Add(x => x.Job.ID)
                        .Add(x => x.Template.ID));
            foreach(var stagingPacket in stagingPackets.ToObjects<StagingManufacturingPacket>())
            {
                if(stagingPacket.ManufacturingPacket.ID != Guid.Empty)
                {
                    MessageBox.Show($"A manufacturing packet already exists for {stagingPacket.Serial}; skipping packet.");
                    continue;
                }

                var packet = new ManufacturingPacket
                {
                    Serial = stagingPacket.Serial,
                    Title = stagingPacket.Title,
                    Quantity = stagingPacket.Quantity,
                    BarcodeQty = string.IsNullOrWhiteSpace(stagingPacket.BarcodeQuantity) 
                        ? stagingPacket.Quantity 
                        : int.Parse(stagingPacket.BarcodeQuantity),
                    WaterMark = string.IsNullOrWhiteSpace(stagingPacket.Watermark) 
                        ? stagingPacket.Group.Watermark
                        : stagingPacket.Watermark,
                    Location = stagingPacket.Location
                };
                packet.SetoutLink.ID = setout.ID;
                packet.ITP.ID = stagingPacket.ITP.ID;
                packet.JobLink.ID = stagingPacket.Job.ID;
                packet.ManufacturingTemplateLink.ID = stagingPacket.Template.ID;

                tuples.Add(new(packet, stagingPacket));
            }
            new Client<ManufacturingPacket>().Save(tuples.Select(x => x.Item1), "Created from Design Management Panel");

            var newStages = new List<ManufacturingPacketStage>();
            var newComponents = new List<ManufacturingPacketComponent>();
            var newTreatments = new List<ManufacturingTreatment>(); 
            foreach(var (packet, stagingPacket) in tuples)
            {
                stagingPacket.ManufacturingPacket.ID = packet.ID;
                
                var stages = new Client<StagingManufacturingPacketStage>()
                    .Query(
                        new Filter<StagingManufacturingPacketStage>(x => x.Packet.ID).IsEqualTo(stagingPacket.ID),
                        IManufacturingPacketGeneratorExtensions.GetPacketGeneratorRequiredColumns<StagingManufacturingPacketStage>());
                newStages.AddRange(stages.ToObjects<StagingManufacturingPacketStage>()
                    .Select(x =>
                    {
                        var stage = x.CreateManufacturingPacketStage();
                        stage.Parent.ID = packet.ID;
                        return stage;
                    }));
                
                var components = new Client<StagingManufacturingPacketComponent>()
                    .Query(
                        new Filter<StagingManufacturingPacketComponent>(x => x.Packet.ID).IsEqualTo(stagingPacket.ID),
                        Columns.None<StagingManufacturingPacketComponent>().Add(x=>x.Packet.ID)
                            .Add(x => x.Product.ID)
                            .Add(x => x.Quantity)
                            .Add(x => x.Dimensions.Unit.ID)
                            .Add(x => x.Dimensions.Quantity)
                            .Add(x => x.Dimensions.Length)
                            .Add(x => x.Dimensions.Width)
                            .Add(x => x.Dimensions.Height)
                            .Add(x => x.Dimensions.Weight)
                            .Add(x => x.Dimensions.Value)
                            .Add(x => x.Dimensions.UnitSize)
                    );
                
                newComponents.AddRange(components.ToObjects<StagingManufacturingPacketComponent>()
                    .Select(x => x.CreateComponent(packet.ID)));
                
                var treatments = new Client<StagingManufacturingPacketTreatment>()
                    .Query(
                        new Filter<StagingManufacturingPacketTreatment>(x => x.Packet.ID).IsEqualTo(stagingPacket.ID),
                        Columns.None<StagingManufacturingPacketTreatment>().Add(x=>x.Packet.ID)
                            .Add(x=>x.Product.ID)
                            .Add(x=>x.Parameter)
                    );
                
                newTreatments.AddRange(treatments.ToObjects<StagingManufacturingPacketTreatment>()
                    .Select(x => x.CreateTreatment(packet.ID)));
                
            }
            new Client<ManufacturingPacketStage>().Save(newStages, "Created from Design Management");
            new Client<ManufacturingPacketComponent>().Save(newComponents, "Created from Design Management");
            new Client<ManufacturingTreatment>().Save(newTreatments, "Created from Design Management");
            new Client<StagingManufacturingPacket>().Save(tuples.Select(x => x.Item2), "Created from Design Management");

            //currently not creating packets due to temporary change in requirements - to uncomment and check for validity when required
            //CreatePackets(setout);
            return result;
        }

        private static void CreateSetoutDocument(Setout setout, StagingSetout item, StagingSetoutDocument stagingsetoutdocument)
        {
            item.Setout.ID = setout.ID;

            var setoutdoc = new SetoutDocument();
            setoutdoc.EntityLink.ID = setout.ID;
            setoutdoc.DocumentLink.ID = stagingsetoutdocument.DocumentLink.ID;

            new Client<SetoutDocument>().Save(setoutdoc, "Added from staging screen");
        }

        private void RejectButton_Click(object sender, RoutedEventArgs e)
        {
            if (selectedSetout is null || Document is null)
            {
                MessageBox.Show("Please select a setout");
                return;
            }
            //dont create setout - setout.id remains blank
            //create kanban and populate task.id - this prevents it from appearing on the stagingsetout grid, and allows a new staging setout to be created when the file is saved to the folder again
            //attach the document to the task for reference

            var task = new Kanban
            {
                Title = "Setout Review Task (setout rejected)",
                Description = "Please review the attached document for setout " + selectedSetout.Number
            };
            task.ManagerLink.ID = App.EmployeeID;

            var page = new TaskGrid();

            if (page.EditItems(new[] { task }))
            {
                var doc = new KanbanDocument();
                doc.EntityLink.ID = task.ID;
                doc.DocumentLink.ID = Document.DocumentLink.ID;
                new Client<KanbanDocument>().Save(doc, "Created from staging screen");

                selectedSetout.Task.ID = task.ID;
                new Client<StagingSetout>().Save(selectedSetout, "Updated from staging screen");

                MessageBox.Show("Success - Task Created for Document " + selectedSetout.Number + " (Task no. " + task.Number + " assigned to " + task.EmployeeLink.Name + ")");
                selectedSetout = null;

                ClearDocuments();
                refreshing = true;
                stagingSetoutGrid.Refresh(false, true);
            }
            else
            {
                MessageBox.Show("Task creation cancelled - setout not rejected");
            }
        }

        private void MarkUpButton_Click(object sender, RoutedEventArgs e)
        {
            if (Mode == DocumentMode.Markup)
            {
                Mode = DocumentMode.Complete;
                MessageBox.Show("IMPORTANT - press save in your document editor, then press the Complete Button in PRS");
                OnMarkupSelected();
            }
            else
            {
                OnMarkupComplete();
                Mode = DocumentMode.Markup;
            }
        }

        private void UpdateOriginalButton_Click(object sender, RoutedEventArgs e)
        {
            if ((_documentdata?.Any() == true) && !String.IsNullOrWhiteSpace(selectedSetout?.OriginalPath))
            {
                try
                {
                    File.WriteAllBytes(selectedSetout.OriginalPath, _documentdata);
                    selectedSetout.OriginalCRC = CoreUtils.CalculateCRC(_documentdata);
                    new Client<StagingSetout>().Save(selectedSetout,"Updated Source File with markups");
                    UpdateOriginalButton.Visibility = Visibility.Collapsed;
                }
                catch (Exception _exception)
                {
                    MessageBox.Show($"Unable to update {selectedSetout?.OriginalPath}!\n\n{_exception.Message}");
                }
                return;
            }
            MessageBox.Show("Please select a design first!");
        }

        private void ApproveButton_Click(object sender, RoutedEventArgs e)
        {
            if (Document is null || selectedSetout is null)
            {
                MessageBox.Show("Please select a setout first.");
                return;
            }
            if (selectedSetouts.Count > 1)
            {
                var msg = Document.Approved
                    ? "Bulk unapprove?"
                    : "Bulk approve? (Skip individual setout approval)";
                if (MessageBox.Show(msg, "Continue?", MessageBoxButton.OKCancel) == MessageBoxResult.OK)
                {
                    Progress.Show("Approving Setouts..");
                    var documents = Client.Query(
                        new Filter<StagingSetoutDocument>(x => x.EntityLink.ID).InList(selectedSetouts.Select(x => x.ID).ToArray()),
                        Columns.Required<StagingSetoutDocument>().Add(x => x.ID, x => x.Approved)
                    ).ToObjects<StagingSetoutDocument>().ToList();
                    foreach(var document in documents)
                    {
                        document.Approved = !Document.Approved;
                    }
                    Client.Save(documents, "Approved by user.");

                    Progress.Close();

                    refreshing = true;
                    stagingSetoutGrid.Refresh(false, true);
                }
            }
            else
            {
                Document.Approved = !Document.Approved;
                new Client<StagingSetoutDocument>().Save(Document, "");
                refreshing = true;
                stagingSetoutGrid.Refresh(false, true);
            }
        }

        private void OnMarkupSelected()
        {
            if (Document is null || selectedSetout is null)
            {
                MessageBox.Show("Please select a setout first.");
                return;
            }

            var doc = new Client<Document>()
                .Query(
                    new Filter<Document>(x => x.ID).IsEqualTo(Document.DocumentLink.ID))
                .ToObjects<Document>().FirstOrDefault();
            if (doc is null)
            {
                Logger.Send(LogType.Error, "", $"Document with ID {Document.DocumentLink.ID} could not be found.");
                MessageBox.Show("Error: the selected document could not be found in the database.");
                return;
            }

            var tempdocpath = Path.Combine(Path.GetTempPath(), doc.FileName);
            selectedSetout.SavePath = tempdocpath;
            selectedSetout.LockedBy.ID = App.EmployeeID;
            selectedSetout.LockedBy.Name = App.EmployeeName;
            new Client<StagingSetout>().Save(selectedSetout, "Locked from Staging Screen");
            File.WriteAllBytes(tempdocpath, doc.Data);
            using (var p = new Process())
            {
                p.StartInfo = new ProcessStartInfo()
                {
                    UseShellExecute = true,
                    FileName = tempdocpath
                };

                p.Start();
            }
            refreshing = true;
            stagingSetoutGrid.Refresh(false, true);
        }
        private void OnMarkupComplete()
        {
            if (selectedSetout is null)
            {
                MessageBox.Show("Please select a setout first.");
                return;
            }
            StagingSetoutGrid.ReloadFile(selectedSetout);
            refreshing = true;
            stagingSetoutGrid.Refresh(false, true);
        }

        #endregion

        private bool refreshing = false;

        private void stagingSetoutGrid_AfterRefresh(object sender, AfterRefreshEventArgs args)
        {
            refreshing = false;
        }

        private void StagingSetoutGrid_OnSelectItem(object sender, InABox.DynamicGrid.DynamicGridSelectionEventArgs e)
        {
            var newSetouts = new List<StagingSetout>();
            foreach (var row in e.Rows ?? Enumerable.Empty<CoreRow>())
                newSetouts.Add(row.ToObject<StagingSetout>());

            if(!refreshing && (selectedSetouts.Count == newSetouts.Count
                && !selectedSetouts.Any(x => !newSetouts.Any(y => x.ID == y.ID))))
            {
                selectedSetouts = newSetouts;
                selectedSetout = selectedSetouts.FirstOrDefault();
                return;
            }

            selectedSetouts = newSetouts;

            selectedSetout = selectedSetouts.FirstOrDefault();
            AddPacketButton.IsEnabled = selectedSetout is not null;
            if(selectedSetout is null)
            {
                ClearDocuments();
                ManufacturingPacketList.Setout = null;
                CollapsePacketsButton.IsEnabled = false;
                SetoutComponentGrid.StagingSetout = null;
                SetMode(DocumentMode.Markup);
                return;
            }

            var doc = new Client<StagingSetoutDocument>()
                .Query(
                    new Filter<StagingSetoutDocument>(x => x.EntityLink.ID).IsEqualTo(selectedSetout.ID),
                    Columns.None<StagingSetoutDocument>().Add(x => x.ID)
                        .Add(x => x.DocumentLink.ID)
                        .Add(x => x.DocumentLink.FileName)
                        .Add(x => x.Approved)
                        .Add(x=>x.DocumentLink.CRC)
                ).ToObjects<StagingSetoutDocument>().FirstOrDefault();
            if(doc is null)
            {
                MessageBox.Show("No document found for this setout.");
                ClearDocuments();
                ManufacturingPacketList.Setout = null;
                CollapsePacketsButton.IsEnabled = false;
                SetoutComponentGrid.StagingSetout = null;
                return;
            }

            Document = doc;
            var docTask = Task.Run(() => GetDocuments(doc));
            if(CanViewPackets())
            {
                ManufacturingPacketList.Setout = selectedSetout;
                SetoutComponentGrid.StagingSetout = selectedSetout;
            }
            CollapsePacketsButton.IsEnabled = true;
            var mode =
                selectedSetout.LockedBy.ID == Guid.Empty ?
                    DocumentMode.Markup :
                    selectedSetout.LockedBy.ID == App.EmployeeID ?
                        DocumentMode.Complete :
                        DocumentMode.Locked;

            docTask.Wait();
            RenderDocuments(docTask.Result);

            SetMode(mode);
        }

        public bool IsReady { get; set; }

        public string SectionName { get; }


        public event DataModelUpdateEvent? OnUpdateDataModel;

        #region Settings

        public void CreateToolbarButtons(IPanelHost host)
        {
            ProjectSetupActions.JobStatuses(host);
            ProjectSetupActions.DrawingTemplates(host);
            host.CreateSetupSeparator();
            ProjectSetupActions.JobSpreadsheetTemplates(host);
            host.CreateSetupSeparator();
            ProjectSetupActions.SetoutGroups(host);
            host.CreateSetupSeparator();

            host.CreateSetupAction(
                new PanelAction()
                {
                    Caption = "Setouts Configuration", 
                    Image = PRSDesktop.Resources.specifications,
                    OnExecute = ConfigSettingsClick
                }
            );
            host.CreateSetupAction(
                new PanelAction()
                {
                    Caption = "Component Import Profiles",
                    Image = PRSDesktop.Resources.doc_xls,
                    OnExecute = ConfigComponentProfiles
                });

            host.CreateSetupAction(
                new PanelAction() 
                { 
                    Caption = "Template Products", 
                    Image = PRSDesktop.Resources.specifications,
                    OnExecute =
                        action =>
                        {
                            var list = new MasterList(typeof(ManufacturingTemplateGroupProducts));
                            list.ShowDialog();
                        }  
                }
            );
            
            SystemSetupActions.ERPStatuses(host);
            
        }

        private void ConfigComponentProfiles(PanelAction obj)
        {
            var list = new DynamicImportList(
                typeof(StagingSetoutComponent),
                Guid.Empty,
                canImport: false
            );
            list.ShowDialog();
        }

        private void ConfigSettingsClick(PanelAction obj)
        {
            var grid = new DynamicItemsListGrid<StagingPanellSettings>();
            grid.OnCustomiseEditor += Grid_OnCustomiseEditor;
            if(grid.EditItems(new[] { _settings }))
            {
                new GlobalConfiguration<StagingPanellSettings>().Save(_settings);
                _script = null;
            }
        }

        private void Grid_OnCustomiseEditor(IDynamicEditorForm sender, StagingPanellSettings[]? items, DynamicGridColumn column, BaseEditor editor)
        {
            if (items?.FirstOrDefault() is not StagingPanellSettings settings) return;

            if (column.ColumnName == nameof(StagingPanellSettings.Script) && editor is ScriptEditor scriptEditor)
            {
                scriptEditor.Type = ScriptEditorType.TemplateEditor;
                scriptEditor.OnEditorClicked += () =>
                {
                    var script = settings.Script.NotWhiteSpaceOr()
                        ?? settings.DefaultScript();

                    var editor = new ScriptEditorWindow(script, SyntaxLanguage.CSharp);
                    if (editor.ShowDialog() == true)
                    {
                        sender.SetEditorValue(column.ColumnName, editor.Script);
                        settings.Script = editor.Script;
                    }
                };
            }
        }

        #endregion

        public void Heartbeat(TimeSpan time)
        {

        }

        public void Refresh()
        {
            //stagingSetoutGrid.ScanFiles(_settings.SetoutsFolder);
            refreshing = true;
            stagingSetoutGrid.Refresh(false, true);
            /*Document = null;

            selectedSetout = null;
            ManufacturingPacketList.Setout = null;
            SetoutComponentGrid.StagingSetout = null;*/
            CalculateTime();
        }

        private void stagingSetoutGrid_OnRefreshPackets()
        {
            if (CanViewPackets())
            {
                ManufacturingPacketList.Refresh();
            }
        }

        public Dictionary<string, object[]> Selected()
        {
            return new();
        }


        public void Shutdown(CancelEventArgs? cancel)
        {

        }

        public DataModel DataModel(Selection selection)
        {
            return new AutoDataModel<StagingSetout>(new Filter<StagingSetout>().All());
        }

        private void AddPacketButton_Click(object sender, RoutedEventArgs e)
        {
            if (_templateGroups.Rows.Any() == true)
            {
                ContextMenu menu = new ContextMenu();
                foreach (var row in _templateGroups.Rows)
                {
                    menu.AddItem(
                        $"{row.Get<ManufacturingTemplateGroup, String>(x => x.Code)}: {row.Get<ManufacturingTemplateGroup, String>(x => x.Description)}",
                        null,
                        () =>
                        {
                            ManufacturingPacketList.Add(
                                selectedSetout?.JobLink.ID ?? Guid.Empty,
                                row.ToObject<ManufacturingTemplateGroup>()
                            );
                            UpdateStagingSetoutGrid();
                        });
                }

                menu.AddSeparator();
                menu.AddItem("Miscellaneous Item", null, () =>
                {
                    ManufacturingPacketList.Add(
                        selectedSetout?.JobLink.ID ?? Guid.Empty,
                        null
                    );
                    UpdateStagingSetoutGrid();
                });
                menu.IsOpen = true;
            }
            else
            {
                ManufacturingPacketList.Add(
                    selectedSetout?.JobLink.ID ?? Guid.Empty, 
                    null
                );
                UpdateStagingSetoutGrid();
            }

        }

        private void UpdateStagingSetoutGrid()
        {
            var selected = stagingSetoutGrid.SelectedRows.FirstOrDefault();
            if (selected != null)
            {
                var packets = ManufacturingPacketList.Packets;
                selected.Set<StagingSetout, int>(x => x.Packets, packets.Length);
                selected.Set<StagingSetout, int>(x => x.UnprocessedPackets, packets.Count(x => x.ManufacturingPacket.ID == Guid.Empty));
                stagingSetoutGrid.InvalidateRow(selected);
            }
        }

        private void CollapsePacketsButton_Click(object sender, RoutedEventArgs e)
        {
            if (ManufacturingPacketList.Collapsed())
            {
                ManufacturingPacketList.Uncollapse();
            }
            else
            {
                ManufacturingPacketList.Collapse();
            }
        }

        private void ManufacturingPacketList_OnCollapsed(bool collapsed)
        {
            if (collapsed)
            {
                CollapsePacketsButton.Content = "Expand";
            }
            else
            {
                CollapsePacketsButton.Content = "Collapse";
            }
        }

        private void stagingSetoutGrid_OnCustomiseSetouts(IReadOnlyList<StagingSetoutGrid.SetoutDocument> setouts)
        {
            if(CustomiseSetoutsMethod != null && ScriptObject != null)
            {
                CustomiseSetoutsMethod?.Invoke(ScriptObject, new object?[]
                {
                    new CustomiseSetoutsArgs(setouts.Select(x => new Tuple<StagingSetout, Document>(x.Setout, x.Document)).ToImmutableList())
                });
            }
        }

        private void StagingSetoutGrid_OnOnDoubleClick(object sender, HandledEventArgs args)
        {
            ManufacturingPacketList.Setout = selectedSetout;
            SetoutComponentGrid.StagingSetout = selectedSetout;
            MainPanel.View = DynamicSplitPanelView.Detail;
            NestedPanel.View = DynamicSplitPanelView.Combined;
            args.Handled = true;
        }

        private void CalculateTime()
        {
            if (selectedSetout != null)
            {
                var time = ManufacturingPacketList.TimeRequired();
                TimeRequired.Content = $"{time.TotalHours:F2} hours";
            }
            else
                TimeRequired.Content = "N/A";
        }

        private void ManufacturingPacketList_OnChanged(object? sender, EventArgs e)
        {
           CalculateTime();
           UpdateStagingSetoutGrid();
        }


        private void DoImport(Importer importer, string? componentFileName, Guid setoutID)
        {
            var success = DynamicImportGrid.CreateImporter(importer, ref componentFileName, out var iimporter);
            if (!success)
            {
                return;
            }

            var errors = new List<string>();

            var stagingSetoutComponents = new List<StagingSetoutComponent>();
            iimporter.OnLoad += Iimporter_OnLoad;
            iimporter.OnSave += (_, entity) => stagingSetoutComponents.Add((entity as StagingSetoutComponent)!);
            iimporter.OnError += (_, error) => errors.Add(error);

            using var stream = new FileStream(componentFileName!, FileMode.Open, FileAccess.Read);
            if (iimporter.Open(stream))
            {
                if (iimporter.ReadHeader())
                {
                    var mismatches = iimporter.Mappings.Where(x =>
                        !string.IsNullOrWhiteSpace(x.Field) &&
                        !iimporter.Fields.Contains(x.Field)
                    ).Select(x => x.Field).ToArray();
                    if (!mismatches.Any())
                    {
                        var imported = iimporter.Import();
                        if (errors.Any())
                        {
                            MessageBox.Show($"Import for component file {componentFileName} failed:\nSome errors occurred: {string.Join('\n', errors)}", "Import failed");
                        }
                        else
                        {
                            var valid = true;
                            var conflicts = false;
                            if (setoutID != Guid.Empty)
                            {
                                var newComponents = new List<StagingSetoutComponent>();
                                foreach (var component in stagingSetoutComponents)
                                {
                                    if (component.StagingSetout.ID == Guid.Empty)
                                    {
                                        component.StagingSetout.ID = setoutID;
                                        newComponents.Add(component);
                                    }
                                    else if (component.StagingSetout.ID != setoutID)
                                    {
                                        conflicts = true;
                                        // Ignoring this item.
                                    }
                                    else
                                    {
                                        newComponents.Add(component);
                                    }
                                }
                                stagingSetoutComponents = newComponents;

                                if (conflicts)
                                {
                                    MessageBox.Show($"Warning: the lines in this file have conflicting setout numbers.", "Warning");
                                }
                            }
                            if (valid)
                            {
                                foreach (var component in stagingSetoutComponents)
                                {
                                    if (component.StagingSetout.ID == Guid.Empty)
                                    {
                                        MessageBox.Show($"Component with no related setout cannot be imported.");
                                        valid = false;
                                        break;
                                    }
                                    else if (component.Description.IsNullOrWhiteSpace())
                                    {
                                        MessageBox.Show($"Component with no description cannot be imported.");
                                        valid = false;
                                        break;
                                    }
                                    else if (component.Dimensions.Unit.ID == Guid.Empty)
                                    {
                                        MessageBox.Show($"Component with no dimensions unit cannot be imported.");
                                        valid = false;
                                        break;
                                    }
                                }
                            }
                            if (valid)
                            {
                                new Client<StagingSetoutComponent>().Save(stagingSetoutComponents, $"Imported from {componentFileName}");

                                SetoutComponentGrid.Refresh(false, true);
                            }
                            else
                            {
                                MessageBox.Show($"Import for component file {componentFileName} failed.", "Import failed");
                            }
                        }
                    }
                    else
                    {
                        MessageBox.Show("Import Mappings do not match file headers!\n\n- " + string.Join("\n- ", mismatches),
                            "Import Failed");
                    }
                }
                else
                {
                    MessageBox.Show("Unable to Read Headers from {0}", Path.GetFileName(componentFileName));
                }
            }
            else
            {
                MessageBox.Show("Unable to Open {0}", Path.GetFileName(componentFileName));
            }

            iimporter.Close();
        }

        private CoreTable Iimporter_OnLoad(object sender, Type type, string[] fields, string ID)
        {
            var result = new CoreTable();
            result.LoadColumns(Columns.None<StagingSetoutComponent>().Add(fields));
            return result;
        }

        private void stagingSetoutGrid_OnParseComponentFile(string componentFileName, Guid setoutID)
        {
            try
            {
                var entityName = typeof(StagingSetoutComponent).EntityName();
                var importers = new Client<Importer>()
                    .Query(
                        new Filter<Importer>(x => x.EntityName).IsEqualTo(entityName),
                        Columns.None<Importer>().Add(x => x.ID));
                if (importers.Rows.Count == 0)
                {
                    var importer = new Importer
                    {
                        EntityName = entityName,
                        FileName = componentFileName
                    };

                    var form = new DynamicImportForm(importer);
                    if (form.ShowDialog() == true)
                    {
                        new Client<Importer>().Save(importer, "");

                        DoImport(importer, componentFileName, setoutID);

                        return;
                    }
                }
                else if (importers.Rows.Count == 1)
                {
                    var importer = new Client<Importer>().Load(new Filter<Importer>(x => x.ID).IsEqualTo(importers.Rows[0].Get<Importer, Guid>(x => x.ID))).First();
                    DoImport(importer, componentFileName, setoutID);
                }
                else
                {
                    var list = new PopupList(
                        typeof(Importer),
                        Guid.Empty,
                        Array.Empty<string>());
                    list.OnDefineFilter += t => new Filter<Importer>(x => x.EntityName).IsEqualTo(entityName);
                    if (list.ShowDialog() == true)
                    {
                        var importer = new Client<Importer>().Load(new Filter<Importer>(x => x.ID).IsEqualTo(list.ID)).First();
                        DoImport(importer, componentFileName, setoutID);
                    }
                }
            }
            catch(Exception e)
            {
                Logger.Send(LogType.Error, "", $"Error in file {componentFileName}: {CoreUtils.FormatException(e)}");
                MessageBox.Show($"Error opening {componentFileName}: {e.Message}");
            }
        }
    }
}