BrowseContactsForm

/*
 * Created by SharpDevelop.
 * User: Admin
 * Date: 4.6.2021 г.
 * Time: 9:11
 *
 * To change this template use Tools | Options | Coding | Edit Standard Headers.
 */
using System;
using System.Drawing;
using System.Reflection;
using System.Windows.Forms;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;


namespace addressBook_11a
{
    /// <summary>
    /// Description of BrowseContacts.
    /// </summary>
    public partial class BrowseContacts : Form
    {

        public List<Contact> allContacts = new List<Contact>();
        public int index = 0;

        public BrowseContacts()
        {
            //
            // The InitializeComponent() call is required for Windows Forms designer support.
            //
            InitializeComponent();

            //
            // TODO: Add constructor code after the InitializeComponent() call.
            //
        }

        void BrowseContactsLoad(object sender, EventArgs e)
        {
            var contactsInfo=File.ReadAllLines("contacts.csv");
            foreach (var element in contactsInfo)
            {
                string name = element.Split(',')[0];
                string phone = element.Split(',')[1];
                string email = element.Split(',')[2];

                var newContact = new Contact(name, phone, email);

                allContacts.Add(newContact);
            }


            textBoxName.Text = allContacts[0].Name;
            textBoxPhone.Text = allContacts[0].Phone;
            textBoxEmail.Text = allContacts[0].Email;

        }


        void ButtonPreviousClick(object sender, EventArgs e)
        {
            if (index-1 < 0)
            {
                MessageBox.Show("Няма повече контакти");
                return;
            }

            index--;
            textBoxName.Text = allContacts[index].Name;
            textBoxPhone.Text = allContacts[index].Phone;
            textBoxEmail.Text = allContacts[index].Email;
        }

        void ButtonNextClick(object sender, EventArgs e)
        {
            if (index+1 == allContacts.Count)
            {
                MessageBox.Show("Няма повече контакти");
                return;
            }

            index++;
            textBoxName.Text = allContacts[index].Name;
            textBoxPhone.Text = allContacts[index].Phone;
            textBoxEmail.Text = allContacts[index].Email;
        }


        void ButtonDeleteClick(object sender, EventArgs e)
        {
            var userAnswer = MessageBox
                .Show("Сигурни ли сте, че искате да изтриете контакта?",
                "Внимание !", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);

                if (userAnswer==DialogResult.No)
                {
                    return;
                }

            allContacts.RemoveAt(index);
            if (index > 0) index--;
            textBoxName.Text = "";
            textBoxPhone.Text = "";
            textBoxEmail.Text = "";
            MessageBox.Show("Контакта е изтрит");
        }

        void ButtonUpdateClick(object sender, EventArgs e)
        {
            string name=textBoxName.Text;
            string phone=textBoxPhone.Text;
            string email=textBoxEmail.Text;

            if (name=="")
            {
                MessageBox.Show("Въведи име на контакт");
                return;
            }


            string phoneString=@"^(0|\+359)[0-9]{9}$";
            Regex rPhone=new Regex(phoneString);
            if (phone != "" && !rPhone.IsMatch(phone))
            {
                MessageBox.Show("Въведете валиден телефон");
                return;
            }


            string emailString=@"^[a-z0-9_ \.]+@[a-z0-9_ \.]+\.[a-z]{2,}$";
            Regex rEmail=new Regex(emailString);
            if (email != "" && !rEmail.IsMatch(email))
            {
                MessageBox.Show("Въведете валиден e-mail");
                return;
            }


            allContacts[index].Name = name;
            allContacts[index].Phone = phone;
            allContacts[index].Email = email;
            MessageBox.Show("Данните са записани");

        }

        void BrowseContactsFormClosing(object sender, FormClosingEventArgs e)
        {
            string result="";

            foreach (var element in allContacts)
            {
                result += element.Print();
            }

            File.WriteAllText("contacts.csv", result);
        }





    }
}