using System;
using System.Collections.Generic;
using Newtonsoft.Json;
using ProjectC.Models;

namespace ProjectC.Core
{
    public class DataProcessor : IDataProcessor
    {
        private bool IsNumeric(string input)
        {
            return long.TryParse(input, out _);
        }
        
        public bool IsJsonValid(string jsonString)
        {
            try
            {
                // ensure that JSON schema is valid
                var jsonObject = JsonConvert.DeserializeObject<dynamic>(value: jsonString);
                return true;
            }
            catch
            {
                return false;
            }
        }

        public List<DataItem> ProcessData(string jsonString)
        {
            var items = new List<DataItem>();
            if (string.IsNullOrEmpty(jsonString))
                return items;

            var jsonObject = JsonConvert.DeserializeObject<dynamic>(value: jsonString);

            foreach (dynamic item in jsonObject)
            {
                var opA = "";
                var opB = "";
                var result = "";
                var isValid = false;

                if (item.a != null)
                    opA = item.a;
                else if (item.aaa != null)
                    opA = item.aaa;
                if (item.b != null)
                    opB = item.b;
                else if (item.bbb != null)
                    opB = item.bbb;

                var itemInfo = new DataItem();
                if (IsNumeric(opA) && IsNumeric(opB))
                {
                    var operandA = Convert.ToInt64(opA);
                    var operandB = Convert.ToInt64(opB);
                    var aValid = false;
                    var bValid = false;

                    if (operandA < int.MinValue)
                        result = "error";
                    else if (operandA > int.MaxValue)
                        result = "error";
                    else
                        aValid = true;

                    if (operandB < int.MinValue)
                        result = "error";
                    else if (operandB > int.MaxValue)
                        result = "error";
                    else
                        bValid = true;

                    if (aValid && bValid)
                    {
                        result = (operandA + operandB).ToString();
                        isValid = true;
                    }
                }
                else
                {
                    result = "error";
                }

                itemInfo.OperandA = opA;
                itemInfo.OperandB = opB;
                itemInfo.Result = result;
                itemInfo.IsValid = isValid;
                items.Add(itemInfo);
            }

            return items;
        }
    }
}

.NET Framework

Project Request

ProjectC

Vehicle Maintenance

Movie Navigator

Customers Exchange

ATM

.NET Core

Mail Daemon

Custom

Buns of code

PHP

Mediabox

Loan Castle

Content Management

Laravel

Phone Check

Frontend

Forex Wall

Business projects

Certification Center

Amerikas Auto

Pet projects

Geolocation Assistant

Web Dynamics

Blackball

Good old times

DOS Clock

BrainOut

Airport Administrator

Atomizer

ProjectC