using System;
using System.Linq;
using Centron.BusinessLogic;
using Centron.BusinessLogic.Administration.Settings;
using Centron.BusinessLogic.Mail.Factory;
using Centron.BusinessLogic.WebServices.Accounts.SpecialPrices;
using Centron.BusinessLogic.WebServices.Administration.Logins;
using Centron.BusinessLogic.WebServices.Sales.Receipts;
using Centron.Data.WebServices.Sales.Receipts;
using Centron.Data.WebServices.Sales.Receipts.Orders;
using Centron.Interfaces;
using Centron.Interfaces.Accounts.SpecialPrices;
using Centron.Interfaces.BL;
using Centron.Interfaces.Sales.Receipts;
using Centron.Tests.EndToEnd.Infrastructure;
using CentronSoftware.Centron.WebServices.Entities.Accounts.SpecialPrices;
using CentronSoftware.Centron.WebServices.Entities.Sales.Receipts;
using CentronSoftware.Centron.WebServices.EntitiesWrongPlace.Administration.Rights;
using Xunit;
using Xunit.Abstractions;

namespace Centron.Tests.EndToEnd.Tests.ReceiptCartReleaseSystem;

public class ReceiptCartReleaseSystemTests : EndToEndTest
{
    public ReceiptCartReleaseSystemTests(ITestOutputHelper testOutputHelper) 
        : base(testOutputHelper)
    {
        // Order Table
        this.Verifier.Settings.IgnoreColumn("Date");
        this.Verifier.Settings.IgnoreColumn("CreatedAt");
        this.Verifier.Settings.IgnoreColumn("ChangedAt");
        this.Verifier.Settings.IgnoreColumn("ReminderDate");
        this.Verifier.Settings.IgnoreColumn("ConcurrencyControlGuid");
        this.Verifier.Settings.IgnoreColumn("RichText");
        this.Verifier.Settings.IgnoreColumn("PaymentConditionText");
        this.Verifier.Settings.IgnoreColumn("ToDoI3D");
        this.Verifier.Settings.IgnoreColumn("CreatedThroughApplicationVersion");
        this.Verifier.Settings.IgnoreColumn("ChangedThroughApplicationVersion");

        // AnlageLog Table
        this.Verifier.Settings.IgnoreColumn("Datum");
        this.Verifier.Settings.IgnoreColumn("CentronVersion");
        
        // ReceiptLogDTO
        this.Verifier.Settings.IgnoreProperty<ReceiptLogDTO>(f => f.CentronVersion);
        this.Verifier.Settings.IgnoreProperty<ReceiptLogDTO>(f => f.Employee);
    }

    // This test checks that the release-system workflow for receipt-carts is working correctly
    // See the ReceiptCartState enum for the different states, and also for more information on how the workflow is supposed to work
    
    private const int ArticleI3D = 80;

    public override void Execute()
    {
        this.PrepareDatabase();

        // Create a cart
        var cartI3D = this.CreateCart();
        
        // Make sure the right-checks work
        this.AssertRightsMissingFor(cartI3D, new []
        {
            ReceiptCartAction.CheckerApprove, 
            ReceiptCartAction.CheckerDecline,
            
            ReceiptCartAction.OrdererApprove, 
            ReceiptCartAction.OrdererDecline
        });

        // Give us the rights to call the release-system workflow methods
        this.AddRights();
        
        // Check successful release-system workflow
        // This goes through every step of the workflow
        // Created -> ReadyForCheck -> DeclinedByChecker -> ReadyForCheck -> Checked -> DeclinedByOrderer -> ReadyForCheck -> Checked -> Ordered
        this.AssertCartState(
            cartI3D, 
            ReceiptCartState.Created, 
            possibleActions: new []{ ReceiptCartAction.ReadyForCheck });
        
        this.ExecuteAction(cartI3D, ReceiptCartAction.ReadyForCheck);
        this.AssertCartState(
            cartI3D, 
            ReceiptCartState.ReadyForCheck, 
            possibleActions: new [] { ReceiptCartAction.CheckerApprove, ReceiptCartAction.CheckerDecline });
        
        this.ExecuteAction(cartI3D, ReceiptCartAction.CheckerDecline);
        this.AssertCartState(
            cartI3D, 
            ReceiptCartState.DeclinedByChecker, 
            possibleActions: new [] { ReceiptCartAction.ImproveCheckerDeclined });

        this.ExecuteAction(cartI3D, ReceiptCartAction.ImproveCheckerDeclined);
        this.AssertCartState(
            cartI3D, 
            ReceiptCartState.ReadyForCheck, 
            possibleActions: new [] { ReceiptCartAction.CheckerApprove, ReceiptCartAction.CheckerDecline });

        this.ExecuteAction(cartI3D, ReceiptCartAction.CheckerApprove);
        this.AssertCartState(
            cartI3D, 
            ReceiptCartState.Checked, 
            possibleActions: new [] { ReceiptCartAction.OrdererApprove, ReceiptCartAction.OrdererDecline });

        this.ExecuteAction(cartI3D, ReceiptCartAction.OrdererDecline);
        this.AssertCartState(
            cartI3D, 
            ReceiptCartState.DeclinedByOrderer, 
            possibleActions: new [] { ReceiptCartAction.ImproveOrdererDeclined });

        this.ExecuteAction(cartI3D, ReceiptCartAction.ImproveOrdererDeclined);
        this.AssertCartState(
            cartI3D, 
            ReceiptCartState.ReadyForCheck, 
            possibleActions: new [] { ReceiptCartAction.CheckerApprove, ReceiptCartAction.CheckerDecline });
        
        this.ExecuteAction(cartI3D, ReceiptCartAction.CheckerApprove);
        // CartState already asserted above

        // Check logs now, because after the orderer approves the cart, the cart will not be accessible anymore
        this.VerifyReceiptLogs(cartI3D);
        
        var orderCartResult = this.ExecuteAction(cartI3D, ReceiptCartAction.OrdererApprove);
        this.AssertCartState(
            cartI3D, 
            ReceiptCartState.Ordered, 
            possibleActions: new ReceiptCartAction[0]); //At this point, no actions are possible anymore
        
        this.VerifyOrderCartResult(orderCartResult);
        this.VerifyOfferState(cartI3D);
    }

    private void PrepareDatabase()
    {
        using var session = new BLSession();
        
        // Create a special price so we can test
        session.GetBL<AccountSpecialPriceWebServiceBL>().SaveAccountSpecialPrice(this.GetLoggedInUser().User, new AccountSpecialPriceDTO
        {
            ObjectKind = CentronObjectKindNumeric.CustomerClass,
            ObjectI3D = 10000,
            ValueKind = SpecialPriceKind.ReduceListPrice,
            Value = 10,
            ArticleI3D = ArticleI3D,
            CreatedByI3D = 1,
            CreatedDate = new DateTime(2022, 1, 1)
        });

        // Specify email settings, otherwise the release-system workflow won't send any mails
        var settings = session.GetBL<ReceiptCartWebServiceBL>().GetWebCartSettings(this.GetLoggedInUser());
        settings.CartOrderedEmailSender = "noreply@c-entron.de";
        settings.CartOrderedInternalEmailReceiver = "vertrieb@c-entron.de";
        session.GetBL<ReceiptCartWebServiceBL>().UpdateWebCartSettings(settings);

        // Set a easy list-price to calculate with
        this.Sql($"UPDATE dbo.ARTIK SET Listenpreis = 600 WHERE I3D = {ArticleI3D}");
        
        // Update setting, so offers don't close automatically
        this.WithSession(session =>
        {
            var settings = session.GetBL<AppSettingsBL>().GetSettingsForUpdate(AppSettingsConst.CloseOfferAutomatically);
            settings.UpdateInt(AppSettingsConst.CloseOfferAutomatically, 1); // 1 = Never
            settings.SaveSettings();
        });
    }

    private int CreateCart()
    {
        var cart = this.WithSession(s => s.GetBL<ReceiptCartWebServiceBL>().CreateNewCart(this.GetLoggedInUserWebAccount(), "Test-Cart", string.Empty));
        this.WithSession(s => s.GetBL<ReceiptCartWebServiceBL>().AddArticleToCart(cart.I3D, ArticleI3D, 10, this.GetLoggedInUserWebAccount()));

        var updateCartInfo = new UpdateCartInfoDTO
        {
            AssembleArticles = true,
            ProjectNumber = "Projektnummer",
            PurchaseOrderNumber = "Besondere Bestellnummer",
            IsPartialDeliveryPossible = false,
            DeliveryAddressZip = "12345",
            DeliveryAddressCity = "Stadt",
            DeliveryAddressStreet = "Straße",
            DeliveryAddressCountryI3D = 2,
            DeliveryAddressFirstName = "Günther",
            DeliveryAddressLastName = "Netzer",
            DeliveryAddressDepartment = "Lieferung auf das Helikopterpad bitte",
            DeliveryAddressSalutationI3D = 2,
        };
        this.WithSession(s => s.GetBL<ReceiptCartWebServiceBL>().UpdateCartInfo(cart.I3D, updateCartInfo, this.GetLoggedInUserWebAccount()));
        
        return cart.I3D;
    }

    private void AssertRightsMissingFor(int cartI3D, ReceiptCartAction[] actions)
    {
        // In the beginning we don't have 
        
        foreach (var action in actions)
        {
            using var session = new BLSession();
            var method = action.GetActualMethod(session);

            var ex = Assert.Throws<ResultException>(() => method(cartI3D, this.GetLoggedInUserWebAccount()));
            Assert.Equal("Sie haben nicht die benötigten Rechte für diese Operation.", ex.Message);
        }
    }

    private void AddRights()
    {
        var webAccount = this.WithSession(s => s.GetBL<WebAccountWebServiceBL>().GetWebAccountByContactPersonI3D(23)).ThrowIfError();
        var webRights = this.WithSession(s => s.GetBL<WebAccountWebServiceBL>().GetAllWebRights()).ThrowIfError();
        
        webAccount.WebRights.Add(webRights.First(f => f.I3D == (int)WebAccountRightsConst.WEBRIGHT_WEBCART2_CHECK_CART));
        webAccount.WebRights.Add(webRights.First(f => f.I3D == (int)WebAccountRightsConst.WEBRIGHT_WEBCART2_ORDER_CART));

        this.WithSession(s => s.GetBL<WebAccountWebServiceBL>().SaveWebAccount(webAccount, this.GetLoggedInUser()));
    }

    private void AssertCartState(int cartI3D, ReceiptCartState cartState, ReceiptCartAction[] possibleActions)
    {
        // Ensure that the current cart-state is the expected one
        // Also make sure, that we can NOT call any of the not-possible action
        
        var currentCartState = Enum.Parse<ReceiptCartState>(this.Sql<string>($"SELECT O.CartState FROM dbo.Offers O WHERE O.I3D = {cartI3D}"));
        Assert.Equal(cartState, currentCartState);

        var notPossibleActions = Enum.GetValues<ReceiptCartAction>().Except(possibleActions);
        foreach (var notPossibleAction in notPossibleActions)
        {
            using var session = new BLSession();
            var method = notPossibleAction.GetActualMethod(session);

            var ex = Assert.Throws<ResultException>(() => method(cartI3D, this.GetLoggedInUserWebAccount()));

            // After the cart is ordered, we don't allow access to it anymore, and behave as it doesn't exist
            var expectedMessage = cartState is ReceiptCartState.Ordered
                ? "Der Warenkorb wurde nicht gefunden."
                : "Der Warenkorb befindet sich bereits an einem anderen Schritt des Freigabewesens.";
            
            Assert.Equal(expectedMessage, ex.Message);
        }
    }

    private OrderCartResultDTO ExecuteAction(int cartI3D, ReceiptCartAction action)
    {
        // Execute the given ReceiptCartAction, to move the cart forward into the next step of the release-system workflow

        OrderCartResultDTO result = null;
        
        var mails = TestMails.Start(() =>
        {
            using var session = new BLSession();
            var method = action.GetActualMethod(session);
            result = method(cartI3D, this.GetLoggedInUserWebAccount());
        });
        
        this.Verifier.Verify($"{action}_Mails", mails);

        return result;
    }

    private void VerifyOrderCartResult(OrderCartResultDTO orderCartResult)
    {
        this.Verifier.Verify("OrderCartResult", orderCartResult);
        
        var order = (ReceiptOrderDTO)this.WithSession(s => s.GetBL<ReceiptWebServiceBL>().GetReceiptByI3D(orderCartResult.OrderI3D, CentronObjectKindNumeric.OrderClass)).ThrowIfError();
        this.Verifier.Verify($"Order", order);
    }

    private void VerifyOfferState(int cartI3D)
    {
        this.Verifier.VerifySql("OfferState", $"SELECT State FROM dbo.Offers WHERE I3D = {cartI3D}");
    }

    private void VerifyReceiptLogs(int cartI3D)
    {
        this.Verifier.VerifySql("ReceiptLogsTable", $"SELECT * FROM dbo.AnlageLog WHERE AnlageI3D = {cartI3D} AND AnlageArt = 1 ORDER BY I3D");

        var logs = this.WithSession(s => s.GetBL<ReceiptCartWebServiceBL>().GetCartLogs(cartI3D, this.GetLoggedInUserWebAccount()));
        this.Verifier.Verify("ReceiptLogs", logs);
    }
}