using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using Luticate2.Auth.Dbo.Result;

namespace Luticate2.Auth.Business.Fields.DMEC
{
    public class LuExpressionConverterIdentity<TType> : LuExpressionConverter<TType, TType>
    {
        public LuExpressionConverterIdentity(IServiceProvider serviceProvider) : base(serviceProvider)
        {
        }

        protected override LuResult<Expression> ConvertInternal(Stack<Expression> expressions, Expression baseExpression, LuExpressionConverterOptions options)
        {
            var expression = expressions.Pop();
            if (expression is MemberExpression memberExpression)
            {
                var newExpression = Expression.MakeMemberAccess(baseExpression, memberExpression.Member);
                return ConvertOther(newExpression.Type, expressions, newExpression, options);
            }
            else if (expression is MethodCallExpression methodCallExpression)
            {
                var argumentsModel = new List<Expression>();
                foreach (var argumentDbo in methodCallExpression.Arguments)
                {
                    var converter = new LuExpressionConverterVisitor(options, ServiceProvider);
                    var result = converter.Visit(argumentDbo);
                    argumentsModel.Add(result);
                }

                var newExpression = Expression.Call(baseExpression, methodCallExpression.Method, argumentsModel);
                return ConvertOther(newExpression.Type, expressions, newExpression, options);
            }
            return base.ConvertInternal(expressions, baseExpression, options);
        }
    }
}