using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using Centron.BusinessLogic;
using Centron.BusinessLogic.EmployeeArea;
using Centron.BusinessLogic.Sales.Receipts.DataAndResults;
using Centron.BusinessLogic.Warehousing;
using Centron.BusinessLogic.WebServices;
using Centron.BusinessLogic.WebServices.Sales.Receipts;
using Centron.Common.Extensions;
using Centron.Controls.Shared;
using Centron.DAO.AdoNETDataAccess;
using Centron.Data.Entities.Administration.Logins;
using Centron.Data.WebServices.Sales.Receipts.Invoices;
using Centron.Data.WebServices.Sales.Receipts.Offers;
using Centron.Interfaces;
using Centron.Interfaces.Administration.Environment;
using Centron.Interfaces.BL;
using Centron.Interfaces.Sales.Receipts;
using Centron.Interfaces.Sales.Receipts.InsertReceipts;
using Centron.Tests.EndToEnd.Infrastructure;
using Centron.Tests.EndToEnd.Infrastructure.Verifier;
using CentronSoftware.Centron.WebServices.EntitiesWrongPlace.Sales.Receipts.DataAndResults;
using Newtonsoft.Json;
using Xunit;
using Xunit.Abstractions;
using Centron.Core.Extensions;

namespace Centron.Tests.EndToEnd.Tests.SaveReceiptPerformance
{
    /// <summary>
    /// This test measures how long it takes to save a huge new invoice.
    /// It used to take around 32 seconds, but after all of my improvements, it's down to less than 5 seconds.
    /// </summary>
    public class SaveReceiptPerformanceTest : PerformanceTest
    {
        public SaveReceiptPerformanceTest(ITestOutputHelper testOutputHelper) 
            : base(testOutputHelper)
        {
        }

        protected override TimeSpan? AllowedDuration => TimeSpan.FromSeconds(5);

        private ReceiptInvoiceDTO _invoiceToSave;
        private ReceiptInvoiceDTO _savedInvoice;

        protected override void Prepare()
        {
            // Set DTALastschrift to 0, so we are not required to select a correct sepa-mandate (Bankverbindung/Mandat)
            this.Sql("UPDATE dbo.Zahkond SET DTALastschrift = 0");
            // Needed because this test was written before the "only forward picked quantity" functionality existed
            this.Sql("UPDATE dbo.ARTIK SET Kommisionieren = 0");
            
            this._invoiceToSave = this.CreateNewInvoice();
        }

        protected override void Measure()
        {
            using (var session = new BLSession())
            {
                var user = session.GetBL<AppUserBL>().GetAppUser(f => f.I3D == 11);
                var saveResult = session.GetBL<ReceiptWebServiceBL>().SaveReceipt(
                    this._invoiceToSave, 
                    user, 
                    new SaveReceiptData {IgnoreCallbacks = true}, 
                    autoLockIfNewReceipt: false, 
                    CreatedThroughApplication.CentronNet, 
                    receiptTemplateFolderI3D: null);
                
                Assert.Equal(ResultStatus.Success, saveResult.Status);
                Assert.NotNull(saveResult.Data.Receipt);

                this._savedInvoice = (ReceiptInvoiceDTO) saveResult.Data.Receipt;
            }
        }

        protected override void AssertResults()
        {
            Assert.NotNull(this._savedInvoice);
            
            this.Verifier.Verify("SavedReceipt", _savedInvoice);

            var settings = new CentronVerifierSettings();
            settings.IgnoreColumn("Geandert_am"); //dbo.ARTIK
            settings.IgnoreColumn("VKDatum"); //dbo.ARTIK
            settings.IgnoreColumn("VKDatumDyn"); //dbo.ARTIK
            settings.IgnoreColumn("Datum"); //dbo.BarcodeHistory, dbo.SeriennummerToPosition
            
            var articleI3Ds = _savedInvoice.Items.Select(f => f.ArticleI3D).Where(f => f != null).Distinct().ToList();
            this.Verifier.VerifyTable("ArticlesTable", "dbo.ARTIK", $"I3D IN ({string.Join(", ", articleI3Ds)})", settings);

            var barcodeI3Ds = _savedInvoice.Items.SelectMany(f => f.Barcodes).Select(f => f.BarcodeI3D).Distinct().ToList();
            this.Verifier.VerifyTable("BarcodesTable", "dbo.Barcode", $"I3D IN ({string.Join(", ", barcodeI3Ds)})", settings);
            this.Verifier.VerifyTable("BarcodeHistoryTable", "dbo.BarcodeHistory", $"BarcodeI3D IN ({string.Join(", ", barcodeI3Ds)})", settings);
            this.Verifier.VerifyTable("SeriennummerToPositionTable", "dbo.SeriennummerToPosition", $"SNI3D IN ({string.Join(", ", barcodeI3Ds)})", settings);

            var originReceipts = _savedInvoice.Items
                .Select(f => new
                {
                    ReceiptKind = f.OriginKind?.ToReceiptKind(),
                    ReceiptI3D = f.OriginReceiptI3D
                })
                .Where(f => f.ReceiptKind != null && f.ReceiptI3D != null)
                .ToList();
            using (var session = new BLSession())
            {
                foreach (var originReceipt in originReceipts)
                {
                    var origin = session.GetBL<ReceiptWebServiceBL>().GetReceiptByI3D(originReceipt.ReceiptI3D.Value, originReceipt.ReceiptKind.Value);
                    this.Verifier.Verify($"Origin{originReceipt.ReceiptKind.Value.GetReceiptName()}{originReceipt.ReceiptI3D}", origin.Data);                
                }
            }
        }
        
        private ReceiptInvoiceDTO CreateNewInvoice()
        {
            using (var session = new BLSession())
            {
                var user = session.GetBL<AppUserBL>().GetAppUser(f => f.I3D == 11);
                var invoice = (ReceiptInvoiceDTO) session.GetBL<ReceiptWebServiceBL>().CreateNewReceipt(
                    CentronObjectKindNumeric.InvoiceClass,
                    new LoggedInUser(user),
                    customerI3D:10022,
                    new CreateReceiptData {IgnoreCallbacks = true},
                    addressI3D: null,
                    contactPersonI3D: null,
                    insertSalutationAndAgreement: false,
                    ignoreDefaultContract: false,
                    insertCustomerDiscount:false).Data.Receipt;
                
                Assert.NotNull(invoice);
                
                invoice.Items.Clear();

                void AddArticleToInvoice(int i3D, decimal quantity = 1, params string[] barcodes)
                {
                    if (barcodes.EmptyIfNull().Any())
                        quantity = barcodes.Length;

                    var articleReceiptItems = session.GetBL<ReceiptItemWebServiceBL>().CreateArticleReceiptItems(invoice, false, i3D, null, null, -1, new LoggedInUser(user)).Data.ReceiptItems;
                    Assert.NotNull(articleReceiptItems);

                    var invoiceItems = articleReceiptItems.Cast<ReceiptInvoiceItemDTO>().ToList();
                    foreach (var item in invoiceItems.Where(f => f.Kind == ReceiptItemKind.Article))
                    {
                        item.QuantityComplete *= quantity;

                        if (item.ArticleI3D == i3D)
                        {
                            item.Barcodes.AddRange(barcodes.Select(f => new ReceiptItemBarcode
                            {
                                BarcodeI3D = this.Sql<int>("SELECT B.I3D FROM dbo.Barcode B WHERE B.Barcode = @Barcode", d => d.AddParameter("Barcode", f)),
                                BarcodeCaption = f,
                                IsActive = true
                            }));
                        }
                    }
                    foreach (var item in invoiceItems)
                    {
                        item.RichText = TextHelper.PlainToRtf(item.Text);
                    }
                    
                    invoice.Items.AddRange(invoiceItems);
                }

                void AddTextToInvoice(string text)
                {
                    var invoiceItem = (ReceiptInvoiceItemDTO)session.GetBL<ReceiptItemWebServiceBL>().CreateFreetextReceiptItem(invoice, text);
                    Assert.NotNull(invoiceItem);
                    invoiceItem.RichText = TextHelper.PlainToRtf(invoiceItem.Text);
                    
                    invoice.Items.Add(invoiceItem);
                }

                void AddExistingReceiptToInvoice(CentronObjectKindNumeric receiptKind, int receiptI3D)
                {  
                    var forwardResult = session.GetBL<ReceiptWebServiceBL>().ForwardReceipt(
                        CentronObjectKindNumeric.InvoiceClass,
                        user,
                        new ForwardReceiptData
                        {
                            IgnoreCallbacks = true,
                            CreateReceiptData = new CreateReceiptData
                            {
                                IgnoreCallbacks = true
                            },
                            CreateReceiptItemsFromExistingItemsData = new List<CreateReceiptItemsFromExistingItemsData>
                            {
                                new()
                                {
                                    IgnoreCallbacks = true,
                                },
                            },
                        },
                        new List<ReceiptToForward>
                        {
                            new ReceiptToForward
                            {
                                ReceiptKind = receiptKind,
                                ReceiptI3D = receiptI3D
                            }
                        },
                        null,
                        InsertReceiptTakeoverOptions.Reference,
                        onlyTakeoverAvailableQuantity: false,
                        ignoreDefaultContract: false);
                    
                    Assert.Equal(ResultStatus.Success, forwardResult.Status);
                    Assert.NotNull(forwardResult.Data.Receipt);

                    var forwardedInvoice = (ReceiptInvoiceDTO) forwardResult.Data.Receipt;
                    foreach (var item in forwardedInvoice.Items)
                    {
                        item.RichText = TextHelper.PlainToRtf(item.Text);
                    }
                    
                    invoice.Items.AddRange(forwardedInvoice.Items);
                }
                
                // A little SQL-Statement to help you find articles that you can insert into the invoice
                // 
                // SELECT A.I3D, A.Abbuchung, A.Menge, A.BarcodeScanen, A.*
                // FROM dbo.ARTIK A
                // WHERE 
                //     A.Lieferbar = 1 AND
                //     (
                //         A.BarcodeScanen = 0 OR
                //         A.I3D IN 
                //         (
                //             SELECT B.ArtikelI3D
                //             FROM dbo.Barcode B
                //             WHERE B.Status = 1
                //         )
                //     ) AND
                //     (
                //         A.Abbuchung = 'N' OR
                //         A.Menge > 0
                //     )
                
                AddTextToInvoice("Hallo lieber Kunde, hier eine super tolle Rechnung von uns!");
                
                AddArticleToInvoice(i3D: 4345);
                AddArticleToInvoice(i3D: 4331, quantity:3);
                AddArticleToInvoice(i3D: 2328, quantity:7);
                
                AddTextToInvoice("Ein bisschen Blabla");
                
                AddArticleToInvoice(i3D: 1313, quantity:2);
                AddArticleToInvoice(i3D: 1299, barcodes: "dfsgdfgdfgsdfg");
                AddArticleToInvoice(i3D: 1289, barcodes: "ssasdfsdfadfad");
                AddArticleToInvoice(i3D: 1288, barcodes: "100021417");
                AddArticleToInvoice(i3D: 1277, quantity:2);
                AddArticleToInvoice(i3D: 2326, barcodes: "ASDFSDAFSD");
                
                AddTextToInvoice("Nochmal mehr blabla");
                AddTextToInvoice("Und eine weitere Position, for good measure");
                AddTextToInvoice("Einer geht noch, einer geht noch rein!");
                
                AddArticleToInvoice(i3D: 1277, barcodes: "asdasdfasdafsdfsd");
                AddArticleToInvoice(i3D: 1256, barcodes: new []{"100032017", "100062017", "100092017", "100102017"});
                AddArticleToInvoice(i3D: 1253, barcodes: new []{"asdfasdsfadfa", "100031417"});
                AddArticleToInvoice(i3D: 1233, barcodes: "sdafdsfsdfasdf");
                AddArticleToInvoice(i3D: 1230, barcodes: "sdfgsdfgsdfgsdfg");
                AddArticleToInvoice(i3D: 1214, barcodes: "wruiwehrzuhfn mv s,.an.f,d");
                AddArticleToInvoice(i3D: 1213, barcodes: new []{"VDVSDFASDFASDFD", "ASDFASDFDF"});
                AddArticleToInvoice(i3D: 1212, barcodes: "fgsdgdfgdfgsdfgsfgf");
                AddArticleToInvoice(i3D: 1210, barcodes: "DFGMJHSDFJGDFL");
                AddArticleToInvoice(i3D: 1208, barcodes: "sasdfasdasdfsdf");
                AddArticleToInvoice(i3D: 1193, quantity:3);
                AddArticleToInvoice(i3D: 1186, quantity:35);
                AddArticleToInvoice(i3D: 1185, quantity:30);
                
                AddTextToInvoice("Blabla");
                
                AddArticleToInvoice(i3D: 1186, quantity:35);
                AddArticleToInvoice(i3D: 1185, quantity:30);
                AddArticleToInvoice(i3D: 176, barcodes:new [] {"300500", "741852", "asdfjdsfklasdklöf"});
                
                AddTextToInvoice("Heyaa");
                
                AddArticleToInvoice(i3D: 1186, quantity:2);
                AddArticleToInvoice(i3D: 1185, quantity:3);
                AddArticleToInvoice(i3D: 1186, quantity:2);
                AddArticleToInvoice(i3D: 1185, quantity:3);
                
                AddTextToInvoice("Heyaa");
                
                AddArticleToInvoice(i3D: 1186, quantity:2);
                AddArticleToInvoice(i3D: 1185, quantity:3);
                AddArticleToInvoice(i3D: 1186, quantity:2);

                AddTextToInvoice("Heyaa");
                
                AddArticleToInvoice(i3D: 167, quantity:10);
                AddArticleToInvoice(i3D: 159, barcodes: "8874452");
                AddArticleToInvoice(i3D: 158, barcodes: new []{"11849848", "12189489", "15165847", "1541874189"});
                AddArticleToInvoice(i3D: 156, barcodes: "555666442");
                AddArticleToInvoice(i3D: 155, quantity:2);
                AddArticleToInvoice(i3D: 154, barcodes: "sn23112010001");
                AddArticleToInvoice(i3D: 154, barcodes: "sn23112010004");
                AddArticleToInvoice(i3D: 167, quantity:10);
                AddArticleToInvoice(i3D: 167, quantity:10);
                AddArticleToInvoice(i3D: 167, quantity:10);
                AddArticleToInvoice(i3D: 1186, quantity:2);
                AddArticleToInvoice(i3D: 1185, quantity:3);
                
                AddTextToInvoice("MEEEEEHR DIENSTLEISTUNG!");
                
                AddArticleToInvoice(i3D: 167, quantity:10);
                AddArticleToInvoice(i3D: 167, quantity:10);
                AddArticleToInvoice(i3D: 167, quantity:10);
                AddArticleToInvoice(i3D: 1186, quantity:2);
                AddArticleToInvoice(i3D: 1185, quantity:3);
                AddArticleToInvoice(i3D: 167, quantity:10);
                AddArticleToInvoice(i3D: 167, quantity:10);
                AddArticleToInvoice(i3D: 167, quantity:10);
                AddArticleToInvoice(i3D: 1186, quantity:2);
                AddArticleToInvoice(i3D: 1185, quantity:3);
                
                AddTextToInvoice("Und noch ein paar Artikel");
                
                AddArticleToInvoice(i3D: 152, barcodes: "1225544");
                AddArticleToInvoice(i3D: 151, barcodes: "3333333");
                AddArticleToInvoice(i3D: 151, barcodes: "2200500");
                AddArticleToInvoice(i3D: 146, quantity:10);
                AddArticleToInvoice(i3D: 146, quantity:15);
                AddArticleToInvoice(i3D: 132, quantity:8);
                AddArticleToInvoice(i3D: 128, barcodes: "SN2910093");
                AddArticleToInvoice(i3D: 126, barcodes: "gfdgd");
                AddArticleToInvoice(i3D: 120, barcodes: "32332");
                AddArticleToInvoice(i3D: 114, barcodes: "100074210");
                AddArticleToInvoice(i3D: 114, barcodes: "100084210");
                AddArticleToInvoice(i3D: 132, quantity:8);
                AddArticleToInvoice(i3D: 146, quantity:15);
                AddArticleToInvoice(i3D: 167, quantity:10);
                
                AddTextToInvoice("Und jetzt noch ein paar bestehende Belege, sodass auch die weiterverarbeitung und so geprüft wird");
                
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.OrderClass, 1294);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.OrderClass, 1291);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.OrderClass, 1296);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.OrderClass, 1303);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.OrderClass, 1317);
                
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.OrderClass, 1325);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.OrderClass, 1310);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.OrderClass, 1332);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.OrderClass, 1333);
                
                AddTextToInvoice("Und jetzt noch ein paar Positionen mit vielen SNs");
                
                AddArticleToInvoice(i3D: 139, barcodes: new []{"101004211", "101014211", "101024211", "101034211", "101054211", "101064211", "101074211"});
                AddArticleToInvoice(i3D: 139, barcodes: new []{"101084211", "101094211", "101104211", "101114211"});
                AddArticleToInvoice(i3D: 139, barcodes: new []{"101124211", "101134211", "101144211", "101154211", "101164211"}); 
                AddArticleToInvoice(i3D: 139, barcodes: new []{"101174211", "101184211", "101194211", "101204211", "101214211", "101224211", "101234211", "101244211", "101254211", "101264211"});
                AddArticleToInvoice(i3D: 139, barcodes: new []{"101274211", "101284211", "101294211", "101304211", "101314211", "101324211", "101334211"});
                
                AddArticleToInvoice(i3D: 52, barcodes: new []{"100034211", "100044211", "100064211", "100084211", "100094211", "100104211"});
                AddArticleToInvoice(i3D: 52, barcodes: new []{"100224211", "100234211", "100244211", "100254211", "100264211", "100274211", "100284211", "100294211", "100304211", "100314211"});
                AddArticleToInvoice(i3D: 52, barcodes: new []{"100114211", "100124211", "100134211", "100144211", "100154211", "100164211", "100174211", "100184211", "100194211", "100204211", "100214211"});
                AddArticleToInvoice(i3D: 52, barcodes: new []{"100324211", "100334211", "100344211", "100354211", "100364211", "100374211", "100384211", "100394211", "100404211", "100414211"});
                AddArticleToInvoice(i3D: 52, barcodes: new []{"100424211", "100434211", "100444211", "100454211", "100464211", "100474211", "100484211", "100494211", "100504211", "100514211", "100524211"});
                AddArticleToInvoice(i3D: 52, barcodes: new []{"100534211", "100544211", "100554211", "100564211", "100574211", "100584211", "100594211", "100604211", "100614211", "100624211", "100634211", "100644211", "100654211", "100664211", "100674211", "100684211", "100694211", "100704211", "100714211", "100724211", "100734211", "100744211", "100754211"});
                AddArticleToInvoice(i3D: 52, barcodes: new []{"100764211", "100774211", "100784211", "100794211", "100804211", "100814211", "100824211", "100834211", "100844211", "100854211", "100864211", "100874211", "100884211", "100894211", "100904211", "100914211", "100924211", "100934211", "100944211", "100954211", "100964211", "100974211", "100984211", "100994211"});
                
                AddArticleToInvoice(i3D: 22, barcodes: new []{"101251711", "101261711", "101271711", "101291711", "101301711", "101311711", "101321711", "101331711", "101341711", "101351711", "101361711", "101371711", "101381711", "101391711", "101401711", "101411711", "101421711", "101431711"});

                AddTextToInvoice("Weil es noch nicht lange genug dauert, jetzt noch ein paar Lieferscheine");
                
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.DeliveryListClass, 5153);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.DeliveryListClass, 5165);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.DeliveryListClass, 85);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.DeliveryListClass, 87);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.DeliveryListClass, 88);
                AddExistingReceiptToInvoice(CentronObjectKindNumeric.DeliveryListClass, 89);
                
                AddTextToInvoice("Ende Gelände");

                var itemsCount = invoice.Items.Count;
                var articleCount = invoice.Items.Count(f => f.Kind == ReceiptItemKind.Article);
                var quantityCount = invoice.Items.Where(f => f.Kind == ReceiptItemKind.Article).Sum(f => f.QuantityComplete);
                var barcodeCount = invoice.Items.SelectMany(f => f.Barcodes.EmptyIfNull()).Count();
                
                return invoice;
            }
        }
    }
}