using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Windows;
using System.Windows.Controls;
using Comal.Classes;
using Comal.Classes.SecurityDescriptors;
using InABox.Clients;
using InABox.Configuration;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.Integration.Logikal;
using InABox.Integration.V6;
using InABox.Wpf;
using InABox.WPF;
using NPOI.Util;
using PRSDesktop.Integrations.Common;
using PRSDesktop.Integrations.Logikal;
using PRSDesktop.Integrations.V6;

namespace PRSDesktop
{
    internal class JobBillOfMaterialsGrid : DynamicDataGrid<JobBillOfMaterials>, IMasterDetailControl<Job,JobBillOfMaterials>
    {
        private readonly Button _approve;
        
        public Job? Master { get; set; }

        public Filter<JobBillOfMaterials> MasterDetailFilter => (Master?.ID ?? Guid.Empty) != Guid.Empty
            ? new Filter<JobBillOfMaterials>(x => x.Job.ID).IsEqualTo(Master.ID)
            : new Filter<JobBillOfMaterials>().None();

        public JobBillOfMaterialsGrid()
        {
            HiddenColumns.Add(x => x.Approved);
            HiddenColumns.Add(x => x.Job.ID);
            if (Security.IsAllowed<CanApproveBillsOfMaterials>())
                _approve = AddButton("Approve", null, ApproveClick);
        }

        protected override void DoReconfigure(DynamicGridOptions options)
        {
            base.DoReconfigure(options);
            options.AddRows = true;
            options.EditRows = true;
            options.DeleteRows = true;
            options.FilterRows = true;
            options.HideDatabaseFilters = true;
            options.SelectColumns = true;
            options.RecordCount = true;
            options.ReorderRows = false;
        }
        
        private bool ApproveClick(Button button, CoreRow[] rows)
        {
            if (rows == null || !rows.Any())
            {
                MessageBox.Show("Please select a row first!");
                return false;
            }

            var bom = rows[0].ToObject<JobBillOfMaterials>();
            bom.Approved = bom.Approved.IsEmpty() ? DateTime.Now : DateTime.MinValue;
            UpdateRow<DateTime?>(rows[0], "Approved", bom.Approved.IsEmpty() ? null : bom.Approved, true);
            new Client<JobBillOfMaterials>().Save(bom, bom.Approved.IsEmpty() ? "Cleared Approval" : "Marked as Approved");
            UpdateButton(_approve, null,
                _approve.IsEnabled && !bom.Approved.IsEmpty() ? "Unapprove" : "Approve");
            return false;
        }

        protected override void SelectItems(CoreRow[] rows)
        {
            base.SelectItems(rows);
            if (rows?.Length == 1)
            {
                _approve.Visibility = Visibility.Visible;
                UpdateButton(_approve, null,
                    _approve.IsEnabled && !rows[0].Get<JobBillOfMaterials, DateTime>(c => c.Approved).IsEmpty() ? "Unapprove" : "Approve");
            }
            else
                _approve.Visibility = Visibility.Collapsed;
        }

        protected override void Reload(
        	Filters<JobBillOfMaterials> criteria, Columns<JobBillOfMaterials> columns, ref SortOrder<JobBillOfMaterials>? sort,
        	CancellationToken token, Action<CoreTable?, Exception?> action)
        {
            criteria.Add(MasterDetailFilter);
            base.Reload(criteria, columns, ref sort, token, action);
        }

        protected override bool CanCreateItems()
        {
            return base.CanCreateItems() && ((Master?.ID ?? Guid.Empty) != Guid.Empty);
        }

        public override JobBillOfMaterials CreateItem()
        {
            var result = base.CreateItem();
            result.Job.ID = Master?.ID ?? Guid.Empty;
            result.Job.Synchronise(Master ?? new Job());
            return result;
        }

        private LogikalSettings? _logikalSettings;
        private V6Settings? _v6Settings;
        
        protected override void DoAdd(bool openEditorOnDirectEdit = false)
        {
            
            ContextMenu? menu = null;
            _v6Settings ??= new GlobalConfiguration<V6Settings>().Load();
            if (_v6Settings.CanImport<ImportV6BillsOfMaterials>(_v6Settings.ImportBoms, Master))
            {
                menu ??= new ContextMenu();
                
                var profiles = new MenuItem()
                {
                    Header = "Import from V6",
                    Icon = new Image() { Source = PRSDesktop.Resources.v6.AsBitmapImage() }
                };
                profiles.Click += ImportFromV6;
                menu.Items.Add(profiles);
            }

            _logikalSettings ??= new GlobalConfiguration<LogikalSettings>().Load();
            if (_logikalSettings.CanImport<ImportLogikalBillsOfMaterials>(_logikalSettings.ImportBoms, Master))
            {
                menu ??= new ContextMenu();
                
                var item = new MenuItem()
                {
                    Header = "Import from Logikal",
                    Icon = new Image() { Source = PRSDesktop.Resources.logikal.AsBitmapImage() }
                };
                item.Click += ImportFromLogikal;
                menu.Items.Add(item);
            }

            if (menu != null)
            {
                menu.Items.Insert(0,new Separator());
                var item = new MenuItem()
                {
                    Header = "New Bill Of Materials"
                };
                item.Click += (o, e) => base.DoAdd(openEditorOnDirectEdit);
                menu.Items.Insert(0,item);
                menu.IsOpen = true;
            }
            else
                base.DoAdd(openEditorOnDirectEdit);
        }

        private List<JobBillOfMaterialsItem> materials = new();
        private List<JobBillOfMaterialsActivity> activities = new();
        
        private void ImportFromLogikal(object sender, RoutedEventArgs e)
        {
            if (Master == null)
                return;
            
            LogikalClient.Instance.Initialize()
                .Error(error => MessageWindow.ShowMessage($"Unable to locate Logikal App!\n\n{error.Message}", "Error"))
                .Success<LogikalInitializeResponse>(initialize =>
                {
                    LogikalClient.Instance.Connect(initialize.Path)
                        .Error(error => MessageWindow.ShowMessage($"Unable to connect to Logikal!\n\n{initialize.Path}\n\n{error.Message}", "Error"))
                        .Success<LogikalConnectResponse>(connect =>
                        {
                            LogikalClient.Instance.Login()
                                .Error(error =>
                                    MessageWindow.ShowMessage($"Unable to login to Logikal!\n\n{error.Message}",
                                        "Error"))
                                .Success<LogikalLoginResponse>(login =>
                                {
                                    ImportBOMFromLogikal();
                                });
                        });
                });
        }

        private void ImportBOMFromLogikal()
        {
            materials.Clear();
            activities.Clear();
            byte[] exceldata = null;
            var import = new LogikalElevationSelection(Master, LogikalElevationSelectionType.BOM, (project, boms) =>
            {
                var bom = boms.FirstOrDefault();
                if (bom != null)
                {
                    exceldata = bom.ExcelData;
                    if (_logikalSettings.SaveFiles)
                    {
                        File.WriteAllBytes(
                            Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),
                                "BillOfMaterials.xlsx"), bom.ExcelData);
                        File.WriteAllBytes(
                            Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),
                                "BillOfMaterials.sqlite"), bom.SQLiteData);
                    }

                    AWGMappingWindow window = new AWGMappingWindow(
                        IntegrationSourceType.Logikal,
                        bom.Styles,
                        bom.Groups,
                        bom.Suppliers,
                        bom.Profiles,
                        bom.Gaskets,
                        bom.Components,
                        bom.Glass,
                        bom.Labour,
                        CreateBOMPart,
                        CreateBOMLabour);
                    var result = window.ShowDialog();
                    return result == true;
                }

                return false;
            });
            if (import.ShowDialog() == true && (materials.Any() || activities.Any()))
            {
                var bom = CreateBOM(null);
                if (exceldata != null)
                {
                    var ss = new JobSpreadsheet();
                    ss.Code = $"BOM {bom.Number}";
                    ss.Description = $"Logikal BOM {bom.Number} Imported {DateTime.Now:f}";
                    ss.Data = exceldata;
                    ss.Parent.ID = Master.ID;
                    Client.Save(ss, "Imported From Logikal");
                }
            }
        }

        private JobBillOfMaterials CreateBOM(JobScope? scope)
        {
            JobBillOfMaterials bom = new();
            Progress.ShowModal("Creating Bill of Materials", progress =>
            {
                bom.Job.CopyFrom(Master);
                bom.Description = $"BOM Imported {DateTime.Now}";
                Client.Save(bom, "Imported From Logikal");
                    
                progress.Report($"Saving Materials ({materials.Count})");
                materials.SortBy(x=>x.Product.Code);
                foreach (var material in materials)
                {
                    material.BillOfMaterials.CopyFrom(bom);
                    material.Job.CopyFrom(Master);
                    material.Scope.CopyFrom(scope ?? new JobScope());
                }
                if (materials.Any())
                    Client.Save(materials,"Imported From Logikal");
                    
                progress.Report($"Saving Labour ({activities.Count})");
                activities.SortBy(x=>x.ActivityLink.Code);
                foreach (var activity in activities)
                {
                    activity.BillOfMaterials.CopyFrom(bom);
                    activity.JobLink.CopyFrom(Master);
                    activity.Scope.CopyFrom(scope ?? new JobScope());
                }
                if (activities.Any())
                    Client.Save(activities,"Imported From Logikal");
                    
            });

            Refresh(false,true);
            return bom;
        }

        private void CreateBOMPart(ProductLink product, ProductStyleLink? style, IBaseDimensions dimensions, double quantity, double cost)
        {
            var item = new JobBillOfMaterialsItem();
            item.Product.CopyFrom(product);
            item.Dimensions.Unit.CopyFrom(product.UnitOfMeasure);
            item.Dimensions.CopyFrom(dimensions);
            item.Dimensions.CalculateValueAndUnitSize();
            item.Style.CopyFrom(style ?? new ProductStyleLink());
            item.Quantity = quantity;
            item.TotalCost = cost;
            materials.Add(item);
        }
        
        private void CreateBOMLabour(ActivityLink activity, TimeSpan duration, double cost)
        {
            var item = activities.FirstOrDefault(x => x.ActivityLink.ID == activity.ID);
            if (item == null)
            {
                item = new JobBillOfMaterialsActivity();
                item.ActivityLink.CopyFrom(activity);
                activities.Add(item);
            }

            var total = item.TotalCost;
            item.Duration += duration;
            item.TotalCost = total + (duration.TotalHours * cost);
        }
        
        private void ImportFromV6(object sender, RoutedEventArgs e)
        {

            _v6Settings ??= new GlobalConfiguration<V6Settings>().Load();
            var _client = new V6Client();
            if (!_client.Connect())
            {
                MessageBox.Show("Unable to connect to V6");
                return;
            }
            var _project = _client.GetProject(Master?.JobNumber, Master?.SourceRef);
            if (_project == null)
            {
                MessageBox.Show("This is not a V6 project!");
                return;
            }
            
            materials.Clear();
            activities.Clear();
            JobScope scope = new JobScope();
            var import = new V6VariationSelection(_client, _project, _ => true, (variation) =>
            {
                if (Master == null)
                    return false;
                
                var scopes = Client.Query(new Filter<JobScope>(x => x.Job.ID).IsEqualTo(Master.ID), Columns.Required<JobScope>().Add(x=>x.SourceRef))
                    .ToArray<JobScope>();
                scope = scopes.FirstOrDefault(x => string.Equals(x.SourceRef ?? "", string.IsNullOrWhiteSpace(variation.ID) ? "" : variation.GetReference()));

                if (scope == null && MessageWindow.ShowOKCancel("Create Variation?", "Confirm"))
                {
                    scope = new JobScope();
                    scope.Job.ID = Master.ID;
                    scope.Description = variation.Description;
                    _v6Settings ??= new GlobalConfiguration<V6Settings>().Load();
                    if (_v6Settings.UseV6QuoteNumber)
                        scope.Number = variation.GetReference();
                    scope.ExTax = variation.SellPrice;
                    Client.Save(scope,"Created from Bill of Materials Import");
                }

                if (scope == null)
                    return false;
                
                var bom = _client.GetBOM(_project,variation.ID);
                AWGMappingWindow window = new AWGMappingWindow(
                    IntegrationSourceType.V6,
                    bom.Styles,
                    bom.Groups,
                    bom.Suppliers,
                    bom.Profiles,
                    bom.Gaskets, 
                    bom.Components, 
                    bom.Glass, 
                    bom.Labour,
                    CreateBOMPart,
                    CreateBOMLabour);
                var result = window.ShowDialog();
                return result == true;
            });
            if (import.ShowDialog() == true)
                CreateBOM(scope);
        }
        
    }
}