using IM.DomainCommons;
using Microsoft.EntityFrameworkCore;
using System.Linq.Expressions;

namespace IM.Infrastructure.Efcore
{
    public static class EfcoreExtension
    {
        public static void EnableSoftDeletionGlobalFilter(this ModelBuilder modelBuilder)
        {
            var entityTypesHasSoftDeletion = modelBuilder.Model.GetEntityTypes()
                .Where(e => e.ClrType.IsAssignableTo(typeof(ISoftDelete)));

            foreach (var entityType in entityTypesHasSoftDeletion)
            {
                var isDeletedProperty = entityType.FindProperty(nameof(ISoftDelete.IsDeleted));
                var parameter = Expression.Parameter(entityType.ClrType, "p");
                var filter = Expression.Lambda(Expression.Not(Expression.Property(parameter, isDeletedProperty.PropertyInfo)), parameter);
                entityType.SetQueryFilter(filter);
            }
        }

        public static IQueryable<T> Query<T>(this DbContext context) where T : class
        {
            return context.Set<T>().AsNoTracking();
        }
    }
}