using System;
using System.Collections.Generic;
using System.Linq;
using Centron.BusinessLogic.Sales.CustomerAssets.Shared;
using Centron.BusinessLogic.Sales.Customers;
using Centron.BusinessLogic.Sales.Receipts.Internal;
using Centron.BusinessLogic.WebServices.Accounts.SpecialPrices;
using Centron.BusinessLogic.WebServices.Sales.CustomerAssets.Shared;
using Centron.BusinessLogic.WebServices.Sales.Receipts;
using Centron.Data.WebServices.Warehousing;
using Centron.Interfaces;
using Centron.Interfaces.BL;
using Centron.Tests.EndToEnd.Infrastructure;
using CentronSoftware.Centron.WebServices.Entities.Accounts.SpecialPrices;
using CentronSoftware.Centron.WebServices.Entities.Warehousing;
using Xunit;
using Xunit.Abstractions;

namespace Centron.Tests.EndToEnd.TicketTests.Ticket136129;

public class Ticket136129Test : EndToEndTest
{
    public Ticket136129Test(ITestOutputHelper testOutputHelper) 
        : base(testOutputHelper)
    {
    }

    public const int ArticleI3D = 12;
    public const int CustomerI3D = 10000;
    
    public override void Execute()
    {
        // In this ticket the problem was, that the globally configured default project-prices (SpecialAgreement in code)
        // for offers/orders/etc were not used in all cases
        // They were only used, when the project-price was for specific articles
        // Now it seems like, it should also work, if it's for all articles
        // 
        // I talked with Steve Marek about it, and we decided on the following logic
        // 1. If the project-price is assigned to a customer, then it should only be used, if the article is in the project-price
        // 2. If the project-price is setup as a default one for offers/orders/etc, then it should always be used
        // 
        // That's it, nothing more
        // There was a 3. level to it, all project-prices that had the "Is Global" flag set, but we don't want that anymore

        this.ExecuteMatrix(
            new[] { false, true },
            new[] { ProjectPriceAssignment.None, ProjectPriceAssignment.Customer, ProjectPriceAssignment.GlobalDefault, ProjectPriceAssignment.IsGlobal },
            (includeArticleInProjectPrice, assignment) =>
            {
                bool expectProjectPriceToBeUsed = (includeArticleInProjectPrice, assignment) switch
                {
                    (_, ProjectPriceAssignment.GlobalDefault) => true,
                    (true, ProjectPriceAssignment.Customer) => true,
                    _ => false,
                };
                
                SetupProjectPrices(includeArticleInProjectPrice, assignment);
        
                this.WithSession(s =>
                {
                    var customer = s.GetBL<CustomerBL>().GetCustomer(CustomerI3D);
                    var projectPrice = s.GetBL<ReceiptItemPriceBL>().GetSpecialAgreement(ArticleI3D, customer, CentronObjectKindNumeric.OfferClass);

                    if (expectProjectPriceToBeUsed)
                    {
                        Assert.NotNull(projectPrice);
                    }
                    else 
                    {
                        Assert.Null(projectPrice);
                    }
                });
            });

    }

    private void SetupProjectPrices(bool includeArticleInProjectPrice, ProjectPriceAssignment assignment)
    {
        ClearAllProjectPrices();
        var projectPrice = CreateProjectPrice();
        TryAssignProjectPriceToCustomer(projectPrice);
        TryAssignProjectPriceGlobally(projectPrice);
        
        void ClearAllProjectPrices()
        {
            // Drop all those tables to reset everything about project-prices
            this.Sql($"DELETE FROM KundenSonderpreise");
            this.Sql($"DELETE FROM SondervereinbarungsArtikel");
            this.Sql($"DELETE FROM Sondervereinbarung");
            
            var receiptSettings = this.WithSession(s => s.GetBL<ReceiptWebServiceBL>().GetReceiptSettings(this.GetLoggedInUser().User));

            receiptSettings.OfferHasGlobalSpecialAgreement = false;
            receiptSettings.OfferGlobalSpecialAgreementI3D = 0;
            
            receiptSettings.OrderHasGlobalSpecialAgreement = false;
            receiptSettings.OrderGlobalSpecialAgreementI3D = 0;
            
            receiptSettings.DeliveryListHasGlobalSpecialAgreement = false;
            receiptSettings.DeliveryListGlobalSpecialAgreementI3D = 0;
            
            receiptSettings.InvoiceHasGlobalSpecialAgreement = false;
            receiptSettings.InvoiceGlobalSpecialAgreementI3D = 0;
            
            this.WithSession(s => s.GetBL<ReceiptWebServiceBL>().UpdateReceiptSettings(receiptSettings, this.GetLoggedInUser().User)).ThrowIfError();
        }

        SpecialAgreementDTO CreateProjectPrice()
        {
            var newProjectPrice = this.WithSession(s => s.GetBL<SpecialAgreementWebServiceBL>().CreateNew(this.GetLoggedInUser().User));
            newProjectPrice.Text = "Test Project Price";
            newProjectPrice.Number = "123";
            newProjectPrice.IsProjectPrice = true;
            newProjectPrice.Articles = new List<SpecialAgreementArticleDTO>();
            newProjectPrice.IsGlobal = assignment is ProjectPriceAssignment.IsGlobal;

            if (includeArticleInProjectPrice)
            {
                newProjectPrice.Articles.Add(new SpecialAgreementArticleDTO
                {
                    Article = new ArticleDTO { I3D = ArticleI3D },
                    State = 1,
                });
            }
            
            return this.WithSession(s => s.GetBL<SpecialAgreementWebServiceBL>().SaveOrUpdate(newProjectPrice, this.GetLoggedInUser().User)).ThrowIfError();
        }

        void TryAssignProjectPriceToCustomer(SpecialAgreementDTO projectPrice)
        {
            if (assignment is not ProjectPriceAssignment.Customer)
                return;

            var accountSpecialPrice = new AccountSpecialPriceDTO
            {
                ObjectKind = CentronObjectKindNumeric.CustomerClass,
                ObjectI3D = CustomerI3D,

                SpecialAgreementI3D = projectPrice.I3D,
                SpecialAgreementCaption = projectPrice.Text,
            };

            this.WithSession(s => s.GetBL<AccountSpecialPriceWebServiceBL>().SaveAccountSpecialPrice(this.GetLoggedInUser().User, accountSpecialPrice));
        }

        void TryAssignProjectPriceGlobally(SpecialAgreementDTO projectPrice)
        {
            if (assignment is not ProjectPriceAssignment.GlobalDefault)
                return;
            
            var receiptSettings = this.WithSession(s => s.GetBL<ReceiptWebServiceBL>().GetReceiptSettings(this.GetLoggedInUser().User));

            receiptSettings.OfferHasGlobalSpecialAgreement = true;
            receiptSettings.OfferGlobalSpecialAgreementI3D = projectPrice.I3D;
            
            this.WithSession(s => s.GetBL<ReceiptWebServiceBL>().UpdateReceiptSettings(receiptSettings, this.GetLoggedInUser().User)).ThrowIfError();
        }
    }

    public enum ProjectPriceAssignment
    {
        None,
        Customer,
        GlobalDefault,
        IsGlobal,
    }
}