namespace Centron.Tests.BL.Warehousing.StockManagement;

using System.Linq;
using Centron.BusinessLogic.Warehousing.StockManagement;
using Centron.DAO;
using Centron.DAO.Mappings.Storage;
using Centron.DAO.Mappings.Warehousing.StockManagement;
using Centron.Data.Entities.Storage;
using Centron.Data.Entities.Warehousing.StockManagement;
using FluentNHibernate.Cfg;
using FluentNHibernate.Cfg.Db;
using JetBrains.Annotations;
using NHibernate;
using NHibernate.Tool.hbm2ddl;
using Xunit;

/// <summary>
/// Integration tests for the StoragePlaceBL class.
/// These tests verify the behavior of storage place operations, particularly the cascading delete functionality.
/// </summary>
[TestSubject(typeof(StoragePlaceBL))]
public class StoragePlaceBLTest
{
    [Fact]
    public void SaveOrUpdateStoragePlace_CascadesDeleteToStorageAreas_WhenStateIsZero()
    {
        // Arrange
        using var session = CreateSession();
        var daoSession = new DAOSession(session);
        
        // Create a storage place
        var storagePlace = new StoragePlace
        {
            Name = "TestPlace",
            Description = "Test Storage Place",
            State = 1 // Active
        };
        
        // Save the storage place to get an I3D
        session.Save(storagePlace);
        session.Flush();
        
        // Create associated storage areas
        var storageArea1 = new StorageArea
        {
            ShortDescription = "Area1",
            Description = "Test Storage Area 1",
            StoragePlaceI3D = storagePlace.I3D,
            State = 1 // Active
        };
        
        var storageArea2 = new StorageArea
        {
            ShortDescription = "Area2",
            Description = "Test Storage Area 2",
            StoragePlaceI3D = storagePlace.I3D,
            State = 1 // Active
        };
        
        // Save the storage areas
        session.Save(storageArea1);
        session.Save(storageArea2);
        session.Flush();
        
        // Create the system under test (SUT)
        var storagePlaceBL = new StoragePlaceBL(daoSession);
        
        // Mark the storage place as deleted
        storagePlace.State = 0;
        
        // Act
        storagePlaceBL.SaveOrUpdateStoragePlace(storagePlace);
        
        // Refresh session to ensure we're getting fresh data
        session.Clear();
        
        // Assert
        // Verify the storage place is marked as deleted
        var updatedStoragePlace = session.Get<StoragePlace>(storagePlace.I3D);
        Assert.Equal(0, updatedStoragePlace.State);
        
        // Verify all associated storage areas are marked as deleted
        var updatedStorageArea1 = session.Get<StorageArea>(storageArea1.I3D);
        var updatedStorageArea2 = session.Get<StorageArea>(storageArea2.I3D);
        
        Assert.Equal(0, updatedStorageArea1.State);
        Assert.Equal(0, updatedStorageArea2.State);
    }
    
    [Fact]
    public void SaveOrUpdateStoragePlace_DoesNotCascadeDelete_WhenStateIsNotZero()
    {
        // Arrange
        using var session = CreateSession();
        var daoSession = new DAOSession(session);
        
        // Create a storage place
        var storagePlace = new StoragePlace
        {
            Name = "TestPlace",
            Description = "Test Storage Place",
            State = 1 // Initially active
        };
        
        // Save the storage place to get an I3D
        session.Save(storagePlace);
        session.Flush();
        
        // Create associated storage areas
        var storageArea1 = new StorageArea
        {
            ShortDescription = "Area1",
            Description = "Test Storage Area 1",
            StoragePlaceI3D = storagePlace.I3D,
            State = 1 // Initially active
        };
        
        var storageArea2 = new StorageArea
        {
            ShortDescription = "Area2",
            Description = "Test Storage Area 2",
            StoragePlaceI3D = storagePlace.I3D,
            State = 1 // Initially active
        };
        
        // Save the storage areas
        session.Save(storageArea1);
        session.Save(storageArea2);
        session.Flush();
        
        // Create the system under test (SUT)
        var storagePlaceBL = new StoragePlaceBL(daoSession);
        
        // Update the storage place to a different non-deleted state (e.g., 2 for a different active state)
        storagePlace.State = 2;
        
        // Act
        storagePlaceBL.SaveOrUpdateStoragePlace(storagePlace);
        
        // Refresh session to ensure we're getting fresh data
        session.Clear();
        
        // Assert
        // Verify the storage place has the new state
        var updatedStoragePlace = session.Get<StoragePlace>(storagePlace.I3D);
        Assert.Equal(2, updatedStoragePlace.State);
        
        // Verify storage areas remain active (not changed)
        var updatedStorageArea1 = session.Get<StorageArea>(storageArea1.I3D);
        var updatedStorageArea2 = session.Get<StorageArea>(storageArea2.I3D);
        
        Assert.Equal(1, updatedStorageArea1.State);
        Assert.Equal(1, updatedStorageArea2.State);
    }

    private static ISession CreateSession()
    {
        var fluentConfig = Fluently.Configure()
            .Database(SQLiteConfiguration.Standard.InMemory)
            .Mappings(m => 
            {
                m.FluentMappings.Add<StoragePlaceMaps>();
                m.FluentMappings.Add<StorageAreaMaps>();
            });
        
        var sessionFactory = fluentConfig.BuildSessionFactory();
        var session = sessionFactory.OpenSession();
        
        new SchemaExport(fluentConfig.BuildConfiguration()).Execute(true, true, false, session.Connection, Console.Out);
        
        return session;
    }
}