using System;
using System.Collections.Concurrent;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;

namespace StoreHub.Framework.Helpers;

public static class ObjectHelper
{
	private static readonly ConcurrentDictionary<string, PropertyInfo> CachedObjectProperties =
		new();

	public static void TrySetProperty<TObject, TValue>(
		TObject obj,
		Expression<Func<TObject, TValue>> propertySelector,
		Func<TValue> valueFactory,
		params Type[] ignoreAttributeTypes
	)
	{
		TrySetProperty(obj, propertySelector, x => valueFactory(), ignoreAttributeTypes);
	}

	public static void TrySetProperty<TObject, TValue>(
		TObject obj,
		Expression<Func<TObject, TValue>> propertySelector,
		Func<TObject, TValue> valueFactory,
		params Type[] ignoreAttributeTypes
	)
	{
		string cacheKey =
			$"{obj?.GetType().FullName}-"
			+ $"{propertySelector}-"
			+ $"{(ignoreAttributeTypes != null ? "-" + string.Join("-", ignoreAttributeTypes.Select(x => x.FullName)) : "")}";

		PropertyInfo property = CachedObjectProperties.GetOrAdd(
			cacheKey,
			(name) =>
			{
				if (propertySelector.Body.NodeType != ExpressionType.MemberAccess)
				{
					return null;
				}

				MemberExpression memberExpression = (MemberExpression)propertySelector.Body;

				PropertyInfo? propertyInfo = obj?.GetType()
					.GetProperties()
					.FirstOrDefault(
						x =>
							x.Name == memberExpression.Member.Name
							&& x.GetSetMethod(true) != null
					);

				if (propertyInfo == null)
				{
					return null;
				}

				if (
					ignoreAttributeTypes != null
					&& ignoreAttributeTypes.Any(
						ignoreAttribute => propertyInfo.IsDefined(ignoreAttribute, true)
					)
				)
				{
					return null;
				}

				return propertyInfo;
			}
		);

		property?.SetValue(obj, valueFactory(obj));
	}
}