using SvetoforVKBot.Models.Updates;
using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using VkNet;
using VkNet.Model.RequestParams;
using System.Security.Cryptography;
using VkNet.Model.Keyboard;
using VkNet.Model.Attachments;
using VkNet.Enums.SafetyEnums;
using System.Collections.ObjectModel;
using System.Threading;
using System.Text.RegularExpressions;
using Newtonsoft.Json;
using SvetoforVKBot.Models.Commands.LK;
using System.Linq;

namespace SvetoforVKBot.Models.Commands.LK.EditData
{
    public class GetEditPhoneCommand
    {
        public bool Execute(RootObject update, VkApi client, SvetoforVKBot.Data.SvetoforVKBotEntities db)
        {
            MessagesSendParams @params = new MessagesSendParams();
            MessagesSendParams @params2 = new MessagesSendParams();
            var chatId = update.@object.message.from_id;
            Regex regex = new Regex("[^0-9]");
            int i = 0;
            var row = new List<MessageKeyboardButton>();
            var listButtons = new List<ReadOnlyCollection<MessageKeyboardButton>>();
            var keyboardBuilder = new KeyboardBuilder().Clear();

            try
            {
                string phone = regex.Replace(update.@object.message.text, "");

                if (phone.Length == 11)
                    if (phone.StartsWith("8") || phone.StartsWith("7"))
                    {
                        var user = db.Users.Single(usr => usr.chatId == chatId);
                        var jsPhones = JsonConvert.DeserializeObject<List<string>>(user.phone);

                        if (jsPhones.Contains(phone))
                        {
                            jsPhones[jsPhones.FindIndex(p => p.Equals(phone))] = jsPhones[0];
                            jsPhones[0] = phone;
                        }
                        else
                        {
                            if (jsPhones.Count > 0)
                            {
                                for (i = jsPhones.Count; i > 0; i--)
                                {
                                    if (i != 4)
                                    {
                                        if (i == jsPhones.Count)
                                            jsPhones.Add("");

                                        jsPhones[i] = jsPhones[i - 1];
                                    }
                                }
                            }
                            else
                                jsPhones.Add("");

                            jsPhones[0] = phone;
                        }

                        user.tag = "Личный кабинет - Данные";
                        user.phone = JsonConvert.SerializeObject(jsPhones);

                        SelectEditDataCommand selectEditData = new SelectEditDataCommand();
                        selectEditData.Execute(update, client, db);

                    }
                    else
                        @params.Message = "Контактный телефон в формате 89123456789 (11 цифр, без плюса и через \"8\" или \"7\" обязательно).";
                else
                    @params.Message = "Контактный телефон в формате 89123456789 (11 цифр, без плюса и через \"8\" или \"7\" обязательно).";


                @params.Keyboard = keyboardBuilder.Build();
                @params.UserId = chatId;
                @params.RandomId = GetRandomId();
                client.Messages.SendAsync(@params);
            }
            catch (Exception ee)
            {
                @params.Message = "‼Ошибка в GetEditPhoneCommand: " + ee.Message;
                @params.Attachments = null;
                @params.Keyboard = null;
                @params.UserId = 59111081;
                @params.RandomId = GetRandomId();
                client.Messages.SendAsync(@params);
                return true;
            }
            return true;
        }

        private static readonly RandomNumberGenerator Rng = RandomNumberGenerator.Create();
        public int GetRandomId()
        {

            var intBytes = new byte[4];

            Rng.GetBytes(intBytes);

            return BitConverter.ToInt32(intBytes, 0);
        }
    }
}