using System.Collections.Generic;
using System.Linq;
using Centron.BusinessLogic;
using Centron.BusinessLogic.WebServices.Warehousing.Commissions;
using Centron.Data.WebServices.Sales.Receipts.DeliveryLists;
using Centron.Data.WebServices.Sales.Receipts.Orders;
using Centron.Interfaces;
using Centron.Interfaces.BL;
using Centron.Interfaces.Warehousing.Commissions;
using Centron.Tests.EndToEnd.Infrastructure;
using Centron.Tests.EndToEnd.Tests.PartListBarcodes;
using CentronSoftware.Centron.WebServices.Entities.Warehousing.Commissions;
using Xunit;
using Xunit.Abstractions;
using static Centron.Tests.EndToEnd.Tests.PartListBarcodes.PartListBarcodeTestHelper;

namespace Centron.Tests.EndToEnd.Tests.PartialCommission;

/// <summary>
/// Verifies that saving a delivery list which references a partial commission order updates the
/// commission items' <c>QuantityInDeliveryList</c> and flags the order as
/// <see cref="PartialCommissionOrderState.Delivered"/> once everything is contained in delivery lists -
/// and that the state reverts when the delivery lists no longer contains the positions (Ticket #168185).
/// </summary>
public class PartialCommissionDeliveryQuantityTest : EndToEndTest
{
    public PartialCommissionDeliveryQuantityTest(ITestOutputHelper testOutputHelper)
        : base(testOutputHelper)
    {
    }

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

        // 1. Create an order and a fully picked partial commission order for it.
        var order = (ReceiptOrderDTO)SaveReceipt(CreateOrder());
        var partialCommissionOrderI3D = this.CreateFullyPickedPartialCommissionOrder(order);

        // 2. Forward the order into a delivery note, reference the partial commission on it and save.
        var deliveryList = ForwardOrderToDeliveryList(order.I3D);
        deliveryList.PartialCommissionOrderI3D = partialCommissionOrderI3D;
        var savedDeliveryListI3D = SaveReceipt(deliveryList).I3D;

        // 3. The commission items are now fully contained in the delivery note -> order is delivered.
        this.AssertPartialCommissionOrder(
            partialCommissionOrderI3D,
            expectedState: PartialCommissionOrderState.Delivered,
            expectFullyInDeliveryList: true);

        // 4. Remove the positions from the delivery list again -> the delivery quantities and the
        //    state revert (back to the commissioned state).
        var newDeliveryListVersion = (ReceiptDeliveryListDTO)CreateNewVersion(CentronObjectKindNumeric.DeliveryListClass, savedDeliveryListI3D);
        newDeliveryListVersion.Items.Clear();
        SaveReceipt(newDeliveryListVersion);

        this.AssertPartialCommissionOrder(
            partialCommissionOrderI3D,
            expectedState: PartialCommissionOrderState.Complete,
            expectFullyInDeliveryList: false);
    }

    private int CreateFullyPickedPartialCommissionOrder(ReceiptOrderDTO order)
    {
        using var session = new BLSession();

        var commissionItems = order.Items
            .Where(f => f.ArticleI3D != null)
            .Select(f => new PartialCommissionOrderItemDTO
            {
                ReceiptOrderItemI3D = f.I3D,
                TargetQuantity = f.QuantityComplete.GetValueOrDefault(0m),
                CurrentQuantity = f.QuantityComplete.GetValueOrDefault(0m),
                BarcodeRelations = new List<PartialCommissionItemToBarcodeRelationDTO>(),
            })
            .ToList();

        var partialCommissionOrder = new PartialCommissionOrderDTO
        {
            ReceiptOrderI3D = order.I3D,
            Caption = "Teilkommissionierung 1",
            State = PartialCommissionOrderState.Incomplete,
            CommissionItems = commissionItems,
        };

        var webServiceBL = session.GetBL<PartialCommissionOrderWebServiceBL>();

        webServiceBL
            .SaveOrUpdatePartialCommissionOrders(new List<PartialCommissionOrderDTO> { partialCommissionOrder }, CommonMethodsHelper.GetUser(session))
            .ThrowIfError();

        var saved = webServiceBL
            .GetPartialCommissionOrdersByFilter(new GetPartialCommissionOrdersFilter { ReceiptOrderI3D = order.I3D })
            .ThrowIfError()
            .First();

        return saved.I3D;
    }

    private void AssertPartialCommissionOrder(int partialCommissionOrderI3D, PartialCommissionOrderState expectedState, bool expectFullyInDeliveryList)
    {
        var partialCommissionOrder = this.WithSession(session => session.GetBL<PartialCommissionOrderWebServiceBL>()
            .GetPartialCommissionOrder(partialCommissionOrderI3D)
            .ThrowIfError());

        Assert.NotEmpty(partialCommissionOrder.CommissionItems);

        foreach (var item in partialCommissionOrder.CommissionItems)
        {
            var expectedQuantity = expectFullyInDeliveryList ? item.TargetQuantity : 0m;
            Assert.Equal(expectedQuantity, item.QuantityInDeliveryList);
        }

        Assert.Equal(expectedState, partialCommissionOrder.State);
    }
}