Stockinfo/StockInfo/frmPerson.cs

using DataDomain;
using Helpers;
using StockDAL.Interface;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace StockInfo
{
    public partial class frmPerson : Form
    {
        private readonly IPersonRepository _personRepository;
        private readonly IAddressRepository _addressRepository;
        private bool radioOk = false;

        public frmPerson(IPersonRepository personRepository, IAddressRepository addressRepository)
        {
            InitializeComponent();
            _personRepository = personRepository;
            _addressRepository = addressRepository;
        }

        public int PersonId { get; set; }
        public int HomeAddressId { get; set; }
        public int InvoiceAddressId { get; set; }


        private void btnAddSave_Click(object sender, EventArgs e)
        {

            (Person person, bool OK) = validatePerson();
            if (OK)
            {
                person = _personRepository.SavePerson(person);
                PersonId = person.Id;
            }
            else
            {

            }

        }

        private (Person person, bool OK) validatePerson()
        {
            var person = new Person();
            person.Id = PersonId;
            person.FirstName = txtFirstName.Text;
            person.LastName = txtLastName.Text;
            person.NickName = txtNickName.Text;
            person.ClearingNo = txtClearingNo.Text.IsNumeric()?int.Parse(txtClearingNo.Text):0;
            person.AccountNo = txtAccountNr.Text.IsNumeric() ? int.Parse(txtAccountNr.Text) : 0;
            person.Born = txtPersonNr.Text;
            person.Comments = txtComment.Text;
            HomeAddressId = AddressSave();
            person.HomeAddress = HomeAddressId;
            person.InvoiceAddress = InvoiceAddressId;
            return (person, true);
        }

        private int AddressSave()
        {
            var retval = 0;
            bool changed = false;
            Address address = new Address();
            (address.Street, changed) = checkString(txtStreet.Text);
            (address.Street2, changed) = checkString(txtStreet2.Text);
            (address.Zipcode, changed) = checkInt(txtZipCode.Text);
            (address.Destination, changed) = checkString(txtDestination.Text);
            (address.Nation, changed) = checkString(txtNation.Text);
            if (changed)
            {
                 retval =_addressRepository.SaveAddress(address).Id;
            }
            return retval;
        }

        private (string, bool ) checkString(string text)
        {
            bool  chgd = !string.IsNullOrWhiteSpace(text);
            return (text, chgd);
        }
        private (int, bool) checkInt(string text)
        {
            bool chgd = false;
            if(!string.IsNullOrWhiteSpace(text))
            {
                chgd = int.Parse(text) > 0;
            }
            return (chgd?int.Parse(text):0, chgd);
        }

        private void frmPerson_Load(object sender, EventArgs e)
        {
            var person = _personRepository.GetPersonById(PersonId);
            initializeAllFields();
            if (person != null)
            {
                HomeAddressId = person.HomeAddress;
                InvoiceAddressId = person.InvoiceAddress;
                fillFieldsFromPerson(person);
            }
        }

        private void fillFieldsFromPerson(Person person)
        {
            txtFirstName.Text = person.FirstName;
            txtLastName.Text = person.LastName;
            txtNickName.Text = person.NickName;
            txtPersonNr.Text = person.Born;
            txtComment.Text = person.Comments;
            txtClearingNo.Text = person.ClearingNo.ToString();
            txtAccountNr.Text = person.AccountNo.ToString();
            ShowAddressFrom(HomeAddressId);
        }

        private void ShowAddressFrom(int AddrId)
        {
            var address = _addressRepository.GetAddressById(AddrId);
            if (address != null)
            {
                txtStreet.Text = address.Street;
                txtStreet2.Text = address.Street2;
                txtZipCode.Text = address.Zipcode.ToString();
                txtDestination.Text = address.Destination;
                txtNation.Text = address.Nation;
            }
        }

        private void initializeAllFields()
        {
            txtFirstName.Text = "";
            txtLastName.Text = "";
            txtNickName.Text = "";
            txtPersonNr.Text = "";
            txtComment.Text = "";
            txtClearingNo.Text = "";
            txtAccountNr.Text = "";
            ClearAddress();
            HomeAddressId = 0;
            InvoiceAddressId = 0;
            rdbHome.Checked = true;
        }

        private void ClearAddress()
        {
            txtStreet.Text = "";
            txtStreet2.Text = "";
            txtZipCode.Text = "";
            txtDestination.Text = "";
            txtNation.Text = "";
        }

        private void rdbInvoiceAddr_CheckedChanged(object sender, EventArgs e)
        {
            if (!radioOk)
            {
                if (rdbInvoiceAddr.Checked)
                {
                    HomeAddressId = AddressSave();
                    ClearAddress();
                    ShowAddressFrom(InvoiceAddressId);
                    radioOk = true;
                }
                else
                {
                    InvoiceAddressId = AddressSave();
                    ClearAddress();
                    ShowAddressFrom(HomeAddressId);
                    radioOk = true;
                }
            }
            else
            {
                radioOk = false;
            }
        }
    }
}