using Centron.BusinessLogic;
using Centron.BusinessLogic.EmployeeArea;
using Centron.BusinessLogic.Sales.CustomerAssets.TimerBilling;
using Centron.BusinessLogic.WebServices.Sales.Receipts;
using Centron.Data.WebServices.Sales.Receipts.Invoices;
using Centron.Interfaces;
using Centron.Tests.EndToEnd.Infrastructure;
using CentronSoftware.Centron.WebServices.Entities.Sales.CustomerAssets.TimerBilling;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Centron.BusinessLogic.Administration.Settings;
using Centron.BusinessLogic.Sales.Receipts.DataAndResults;
using Centron.BusinessLogic.Sales.Receipts.Internal;
using Centron.BusinessLogic.Sales.Support;
using Centron.BusinessLogic.WebServices.Sales.Support;
using Centron.Data.Entities.Sales.Support.HelpdeskTimerArea;
using Centron.Data.WebServices.Sales.Receipts;
using Centron.Data.WebServices.Sales.Receipts.Offers;
using Centron.Data.WebServices.Sales.Support;
using Centron.Interfaces.Administration.Environment;
using Centron.Interfaces.Administration.Settings;
using Centron.Interfaces.Sales.Receipts;
using CentronSoftware.Centron.WebServices.Extensions;
using Xunit;
using Xunit.Abstractions;

namespace Centron.Tests.EndToEnd.Tests.TimerBilling
{
    public class TimerBillingTest : EndToEndTest
    {
        public TimerBillingTest(ITestOutputHelper testOutputHelper) 
            : base(testOutputHelper)
        {
        }

        public override void Execute()
        {
            this.PrepareDatabase();
            
            this.CreateReceiptWithDate(CentronObjectKindNumeric.InvoiceClass, reminderDateInDays: 0);
            this.CreateReceiptWithDate(CentronObjectKindNumeric.InvoiceClass, reminderDateInDays: 10);
            
            this.CreateReceiptWithDate(CentronObjectKindNumeric.DeliveryListClass, reminderDateInDays: 0);
            this.CreateReceiptWithDate(CentronObjectKindNumeric.DeliveryListClass, reminderDateInDays: 10);
            
            // Reset it to 0, so the invoices created afterwards don't change
            this.SetReminderDateInDays(0);
            
            this.FindTimersAndCreateInvoiceForCustomer(10008);
            this.FindTimersAndCreateInvoiceForCustomer(10012);
            this.FindTimersAndCreateInvoiceForCustomer(10017);
            this.FindTimersAndCreateInvoiceForCustomer(10024);

            this.ValidateUseTicketTimeAsServicePeriod();
            this.ValidateBreakTimeFormat();
            
            // Timer from orders
            this.ExecuteMatrix(
                new bool?[] {null, true, false},
                new bool[] {true, false},
                (takePriceFromOrder, globalTakePriceFromOrder) =>
                {
                    this.CreateReceiptWithTimerFromOrder(takePriceFromOrder, globalTakePriceFromOrder);
                });
            
            // Timer with Master-Data-List infos
            this.CreateInvoiceFromTicketWithMasterDataList();
            
            // Timer start- and end-time fix
            this.ExecuteMatrix(
                new bool[] {true, false},
                new bool[] {true, false}, 
                (startTimeFormat, endTimeFormat) =>
                {
                    this.CreateReceiptWithTimerFormat(startTimeFormat, endTimeFormat);
                });
            
            this.TestGetContractsMethod();
        }

        private void TestGetContractsMethod()
        {
            // This is just a function test so the different combinations work. We use in GetContracts a complex table valued function
            // If it is called for one customer or one contract, we pass down it too the function too. 
            
            using var session = new BLSession();
            var result = session.GetBL<TimerBillingBL>().GetContracts(new List<int>()
            {
                10000
            }, null);
            Verifier.Verify("TimerBillingTest_TestGetContractsMethod_SingleCustomer", result);

            result = session.GetBL<TimerBillingBL>().GetContracts(null, new List<int>()
            {
                28
            });
            Verifier.Verify("TimerBillingTest_TestGetContractsMethod_SingleContract", result);
            
            result = session.GetBL<TimerBillingBL>().GetContracts(new List<int>()
            {
                10000, 10003
            }, null);
            Verifier.Verify("TimerBillingTest_TestGetContractsMethod_MultipleCustomer", result);
            
            result = session.GetBL<TimerBillingBL>().GetContracts(null, new List<int>()
            {
                28, 6
            });
            Verifier.Verify("TimerBillingTest_TestGetContractsMethod_MultipleContract", result);
        }
        
        private void PrepareDatabase()
        {
            this.Sql($"UPDATE dbo.Stammdat SET WertText = 'g' WHERE I3D = {(int)AppSettingsConst.HelpdeskTimerStartTimeFormat}");
            this.Sql($"UPDATE dbo.Stammdat SET WertText = 'g' WHERE I3D = {(int)AppSettingsConst.HelpdeskTimerEndTimeFormat}");
        }

        private void CreateReceiptWithDate(CentronObjectKindNumeric receiptKind, int reminderDateInDays)
        {
            this.SetReminderDateInDays(reminderDateInDays);

            // Prepare
            var customerI3D = 10008;
            var name = $"{receiptKind.GetReceiptName()}WithDateResultForCustomer{customerI3D}ReminderIn{reminderDateInDays}";

            var timerI3Ds = this.FindTimers(customerI3D);

            var billingDate = new DateTime(2021, 10, 30);
            var settings = new TimerBillingSettingsDTO
            {
                ReceiptKind = receiptKind,
                BillingDate = billingDate
            };
            
            // Act
            var receipt = this.CreateReceipt(name, timerI3Ds, settings);
            
            // Assert
            Assert.Equal(billingDate, receipt.Date);

            // The ReminderDate should be X days after the receipt-date
            // So when today is X, billing date is X + 7, and reminderDateInDays is 5,
            // then reminderDate should be X + 7 + 5
            var expectedReminderDate = reminderDateInDays == 0
                ? (DateTime?)null
                : billingDate.AddDays(reminderDateInDays);
            Assert.Equal(expectedReminderDate, receipt.Get((IReceiptWithReminderDate r) => r.ReminderDate));
        }

        private void SetReminderDateInDays(int reminderDateInDays)
        {
            // Set reminder date settings
            using (var session = new BLSession())
            {
                var updateSettings = session.GetBL<AppSettingsBL>().GetSettingsForUpdate(
                    AppSettingsConst.InvoiceReminderDays,
                    ApplicationSettingID.DeliveryListReminderDays);

                updateSettings.UpdateInt(AppSettingsConst.InvoiceReminderDays, reminderDateInDays);
                updateSettings.UpdateInt(ApplicationSettingID.DeliveryListReminderDays, reminderDateInDays);

                updateSettings.SaveSettings();
            }
        }

        private void FindTimersAndCreateInvoiceForCustomer(int customerI3D)
        {
            var name = $"InvoiceResultForCustomer{customerI3D}";
            
            var timerI3Ds = this.FindTimers(customerI3D);
            
            var settings = new TimerBillingSettingsDTO
            {
                InsertHelpdeskDescription = true,
                InsertHelpdeskShortDescription = true,
                InsertTimerText = true,
                InsertTimerTime = true,
                InsertTheFollowingAreTimersFromHelpdeskText = true,
                Sorting = Interfaces.Sales.Receipts.TimerBilling.TimerSorting.ChronologicalUp,

                ReceiptKind = CentronObjectKindNumeric.InvoiceClass,
                AdditionalText = "Hier mein Text!"
            };

            var invoice = this.CreateReceipt(name, timerI3Ds, settings);
            this.SaveInvoice(invoice);
        }

        private List<int> FindTimers(int customerI3D)
        {
            using (var session = new BLSession())
            {
                var filter = new TimerBillingFilter
                {
                    OnlyOpenHelpdesks = true,
                    CustomerI3Ds = new List<int>
                    {
                        customerI3D
                    }
                };

                var timers = session.GetBL<TimerBillingBL>().SearchTimers(filter);
                this.Verifier.Verify("FindTimersForCustomer" + customerI3D, timers);

                return timers.Select(f => f.I3D).ToList();
            }
        }

        private ReceiptBaseDTO CreateReceipt(string name, List<int> timerI3Ds, TimerBillingSettingsDTO settings)
        {
            using (var session = new BLSession())
            {
                var user = session.GetBL<AppUserBL>().GetAppUser(f => f.I3D == 11);
                var invoiceResult = session.GetBL<ReceiptWebServiceBL>().CreateNewReceiptForHelpdekTimers(timerI3Ds, settings, user);

                // Allow the caller to pass in a NULL name, to skip the .Verify call
                if (name is not null)
                    this.Verifier.Verify(name, invoiceResult);

                return invoiceResult.Data;
            }
        }

        private void SaveInvoice(ReceiptBaseDTO invoice)
        {
            using (var session = new BLSession())
            {
                var user = session.GetBL<AppUserBL>().GetAppUser(f => f.I3D == 11);
                var saveResult = session.GetBL<ReceiptWebServiceBL>().SaveReceipt(invoice, user, new SaveReceiptData
                {
                    IgnoreCallbacks = true
                }, false, CreatedThroughApplication.CentronNet, null);

                this.Verifier.Verify($"SavedInvoice{invoice.Number}", saveResult);
            }
        }

        private void ValidateBreakTimeFormat()
        {
            // Set break-time format
            using (var session = new BLSession())
            {
                var updateSettings = session.GetBL<AppSettingsBL>().GetSettingsForUpdate(
                    ApplicationSettingID.HelpdeskTimerBreakTimeFormat);

                updateSettings.UpdateString(ApplicationSettingID.HelpdeskTimerBreakTimeFormat, "davon @@Stunden@@ bzw. @@Minuten@@ bzw. @@StundenDezimal@@ Pause");

                updateSettings.SaveSettings();
            }

            // Test the logic
            using (var session = new BLSession())
            {
                var testTimer = new HelpdeskTimer
                {
                    Start = new DateTime(2021, 1, 1, 15, 30, 0),
                    Stop = new DateTime(2021, 1, 1, 17, 45, 0),
                    LunchTime = (int)TimeSpan.FromMinutes(12).TotalSeconds
                };
                var text = session.GetBL<ReceiptItemTimerBL>().GetTimerTimeText(testTimer);
                this.Verifier.Verify("TimerTimeTextWithBreak", text);
            } 
        }

        private void ValidateUseTicketTimeAsServicePeriod()
        {
            const int timerI3D = 10511;
            var (start, stop) = this.GetHelpdeskTimerPeriod(timerI3D);

            var receiptWithServicePeriod = this.CreateReceipt(null, new List<int> { timerI3D }, new TimerBillingSettingsDTO
            {
                ReceiptKind = CentronObjectKindNumeric.InvoiceClass,
                UseTicketTimeAsServicePeriod = true,
            });

            var itemWithServicePeriod = receiptWithServicePeriod.GetReceiptItems().OfType<ReceiptInvoiceItemDTO>().First(f => f.ServicePeriodFrom != null);
            Assert.Equal(start, itemWithServicePeriod.ServicePeriodFrom);
            Assert.Equal(stop, itemWithServicePeriod.ServicePeriodTo);

            var receiptPeriod = Assert.IsType<ReceiptInvoiceDTO>(receiptWithServicePeriod);
            Assert.Equal(start, receiptPeriod.ServicePeriodFrom);
            Assert.Equal(stop, receiptPeriod.ServicePeriodTo);

            var receiptWithoutServicePeriod = this.CreateReceipt(null, new List<int> { timerI3D }, new TimerBillingSettingsDTO
            {
                ReceiptKind = CentronObjectKindNumeric.InvoiceClass,
                UseTicketTimeAsServicePeriod = false,
            });

            foreach (var itemWithoutServicePeriod in receiptWithoutServicePeriod.GetReceiptItems().OfType<ReceiptInvoiceItemDTO>())
            {
                Assert.Null(itemWithoutServicePeriod.ServicePeriodFrom);
                Assert.Null(itemWithoutServicePeriod.ServicePeriodTo);
            }

            var receiptWithoutPeriod = Assert.IsType<ReceiptInvoiceDTO>(receiptWithoutServicePeriod);
            Assert.Null(receiptWithoutPeriod.ServicePeriodFrom);
            Assert.Null(receiptWithoutPeriod.ServicePeriodTo);
        }

        private (DateTime Start, DateTime Stop) GetHelpdeskTimerPeriod(int timerI3D)
        {
            using var session = new BLSession();
            var timer = session.GetBL<HelpdeskTimerBL>().GetHelpdeskTimerByI3D(timerI3D);
            return (timer.Start, timer.Stop);
        }

        private void CreateReceiptWithTimerFromOrder(bool? takePriceFromOrder, bool globalTakePriceFromOrder)
        {
            var name = $"CreateReceiptWithTimerFromOrder_PriceFromOrder_{takePriceFromOrder?.ToString() ?? "NULL"}_GlobalPriceFromOrder_{globalTakePriceFromOrder}";

            const int TimerI3DFromOrder = 10511;
            const int OrderItemI3D = 7258;
            
            var settings = new TimerBillingSettingsDTO
            {
                ReceiptKind = CentronObjectKindNumeric.InvoiceClass,
                TakePriceFromOrder = globalTakePriceFromOrder,
                OrderItemI3DForHelpdeskTimerI3Ds = new List<TimerBillingOrderItemI3DForHelpdeskTimerI3D>
                {
                    new()
                    {
                        HelpdeskTimerI3D = TimerI3DFromOrder,
                        OrderItemI3D = OrderItemI3D,
                        TakePriceFromOrder = takePriceFromOrder
                    }
                }
            };

            var invoice = this.CreateReceipt(name:null, new List<int> { TimerI3DFromOrder }, settings);
            var item = invoice.GetReceiptItems().First(f => f.ArticleI3D == 12);
            this.Verifier.Verify(name, item);
            
            // Important here is mostly the IReceiptItemBase.BasePrice property
            var expectedPriceFromOrder = takePriceFromOrder ?? globalTakePriceFromOrder;
            var expectedPrice = expectedPriceFromOrder ? 400 : 0;
            var price = item.BasePrice;
            
            Assert.Equal(expectedPrice, price);
        }

        private void CreateInvoiceFromTicketWithMasterDataList()
        {
            // Add new timer to Helpdesk Ticket I3D 9447
            int? timerI3D;
            using (var session = new BLSession())
            {
                timerI3D = session.GetBL<HelpdeskTimerWebServiceBL>().SaveHelpdeskTimer(new HelpdeskTimerDTO
                {
                    Start = new DateTime(2022, 2, 10, 12, 0, 0),
                    Stop = new DateTime(2022, 2, 10, 14, 30, 0),
                    Calculable = true,
                    HelpdeskI3D = 9447,
                    InternalNote = "Interne Notiz Blabla",
                    ExternalNote = "Externe Notiz Blabla",
                    IsPlanned = false,
                    ArticleI3D = 94,
                    State = 1,
                }, this.GetLoggedInUser());
                
                Assert.NotNull(timerI3D);
            }
            
            // Activate the setting to add Master-Data-List info when billing timers
            this.Sql($"UPDATE dbo.Stammdat SET Wert = 1 WHERE I3D = {(int)AppSettingsConst.HelpdeskToCustomerAssetInsertMasterSheetData}");
            
            // Act
            var settings = new TimerBillingSettingsDTO
            {
                ReceiptKind = CentronObjectKindNumeric.InvoiceClass,
            };
            
            var receipt = this.CreateReceipt("InvoiceFromTicketWithMasterDataList", new List<int> {timerI3D.Value}, settings);
        }

        private void CreateReceiptWithTimerFormat(bool hasStartTimeFormat, bool hasEndTimeFormat)
        {
            var startTimeFormat = hasStartTimeFormat ? "g" : "";
            this.Sql($"UPDATE dbo.Stammdat SET WertText = '{startTimeFormat}' WHERE I3D = {(int)AppSettingsConst.HelpdeskTimerStartTimeFormat}");
            var endTimeFormat = hasEndTimeFormat ? "g" : "";
            this.Sql($"UPDATE dbo.Stammdat SET WertText = '{endTimeFormat}' WHERE I3D = {(int)AppSettingsConst.HelpdeskTimerEndTimeFormat}");
            
            using (var session = new BLSession())
            {
                var testTimer = new HelpdeskTimer
                {
                    Start = new DateTime(2021, 1, 1, 15, 30, 0),
                    Stop = new DateTime(2021, 1, 1, 17, 45, 0),
                    LunchTime = (int)TimeSpan.FromMinutes(12).TotalSeconds
                };
                var text = session.GetBL<ReceiptItemTimerBL>().GetTimerTimeText(testTimer);
                this.Verifier.Verify($"TimerTimeText_HasStartTime_{hasStartTimeFormat}_HasEndTime_{hasEndTimeFormat}", text);
            }
        }
    }
}