using System.Linq.Expressions;
using System.Reflection;
using Bunny.Dao.Entity.Base;
using Microsoft.EntityFrameworkCore.Metadata;

namespace Bunny.Common.Context;

/// <summary>
///     软删除过滤器
/// </summary>
public static class SoftDeleteQueryExtension
{
    /// <summary>
    ///     软删除过滤器
    /// </summary>
    /// <param name="entityData"></param>
    public static void AddSoftDeleteQueryFilter(this IMutableEntityType entityData)
    {
        var methodToCall = typeof(SoftDeleteQueryExtension)
            .GetMethod(nameof(GetSoftDeleteFilter), BindingFlags.NonPublic | BindingFlags.Static)
            ?.MakeGenericMethod(entityData.ClrType);
        var filter = methodToCall?.Invoke(null, []);
        entityData.SetQueryFilter((LambdaExpression)filter!);
    }

    /// <summary>
    ///     软删除
    /// </summary>
    /// <typeparam name="TEntity"></typeparam>
    /// <returns></returns>
    private static LambdaExpression GetSoftDeleteFilter<TEntity>() where TEntity : BaseEntity
    {
        Expression<Func<TEntity, bool>> filter = x => !x.IsDeleted;
        return filter;
    }
}