using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace Tango.BL.Serialization
{
    public class EntitySerializationStrategy
    {
        public List<MemberInfo> IgnoreProperties { get; private set; }
        public List<MemberInfo> IncludeProperties { get; private set; }

        public EntitySerializationStrategy()
        {
            IgnoreProperties = new List<MemberInfo>();
            IncludeProperties = new List<MemberInfo>();
        }

        public EntitySerializationStrategy Ignore<T>(Expression<Func<T>> propertyLambda)
        {
            var me = propertyLambda.Body as MemberExpression;

            if (me == null)
            {
                throw new ArgumentException("You must pass a lambda of the form: '() => Class.Property' or '() => object.Property'");
            }

            return Ignore(me.Member);
        }

        public EntitySerializationStrategy Ignore(MemberInfo memberInfo)
        {
            IgnoreProperties.Add(memberInfo);
            return this;
        }

        public EntitySerializationStrategy Include<T>(Expression<Func<T>> propertyLambda)
        {
            var me = propertyLambda.Body as MemberExpression;

            if (me == null)
            {
                throw new ArgumentException("You must pass a lambda of the form: '() => Class.Property' or '() => object.Property'");
            }

            return Include(me.Member);
        }

        public EntitySerializationStrategy Include(MemberInfo memberInfo)
        {
            IncludeProperties.Add(memberInfo);
            IgnoreProperties.Remove(memberInfo);
            return this;
        }
    }
}