using System;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;
using System.Collections.Generic;
using BrokerInterfaceETrade.Api;
using log4net;
using TradeIdeas.TIProGUI;

namespace BrokerInterfaceETrade.UI
{
    public partial class frmSettings : Form
    {

        private ETradeManager _manager;

        private static readonly ILog log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
        private static readonly string UNREGISTER_EXPLANATION = "If would like switch your connection to another ETrade User Account, then please click the 'Unregister User' Button.";
        private static readonly string UNREGISTER_DISCLAIMER_1 = "This will automatically disconnet your current session.";
        private static readonly string UNREGISTER_DISCLAIMER_2 = "The next time you connect, you will be taken to ETrade's Sign in page to re-authenticate with your user credentials.";
        private bool _reconnectFlag;
        private bool _diconnectFlag;
        public bool DiconnectFlag {
            get {
                return _diconnectFlag;
            }  
        }
        public bool ReconnectFlag
        {
            get
            {
                return _reconnectFlag;
            }
        }
        public frmSettings(ETradeManager manager)
        {

            InitializeComponent();

             Font = GuiEnvironment.FontSettings;
            _manager = manager;
            dgvAccounts.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing;
            dgvAccounts.ColumnHeadersHeight = 24;

            lblUnregisterExplanation.Text = UNREGISTER_EXPLANATION;
            lblUnregisterDisclaimer.Text = UNREGISTER_DISCLAIMER_2;
            if (!_manager.IsConnected())
                lblUnregisterDisclaimer.Text.Insert(0, $"{UNREGISTER_DISCLAIMER_1 }  ");

        }

        private List<string> _linkedAccountsState = new List<string>();
        private bool SaveSettings()
        {

            try
            {
                var linkedAccounts = new List<string>();

                foreach( DataGridViewRow row in dgvAccounts.Rows)
                {
                    if (Convert.ToBoolean(row.Cells["Link"].Value))
                        linkedAccounts.Add(row.Cells["Account"].Value.ToString());
                }

                _manager.Api.SaveLinkedAccountsSettings(linkedAccounts);

                //Detetect Any Chnages             
                return _linkedAccountsState.Except(linkedAccounts).Any() || linkedAccounts.Except(_linkedAccountsState).Any();

            }
            catch (Exception ex)
            {
                log.Error(logHeader("Exception"), ex);
                return false;
            }
        }
        private void frmSettings_Load(object sender, EventArgs e)
        {

            try
            {
                Size = new Size(780, 238);
                tabStripSettings.ItemSize = new Size(90, 30);
                //if we're not connected, we can't manage account linking;
                if (_manager.IsConnected())
                    loadAccountsSnapshot();
                else
                    tabStripSettings.TabPages.Remove(tabStripSettings.TabPages[1]);

                tabStripSettings.SelectedIndex = 0;
                dgvAccounts.GridColor = Color.FromArgb(55, 55, 55);
                dgvAccounts.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.AllCells;
                dgvAccounts.RowTemplate.DefaultCellStyle.Padding = new Padding(0);
                dgvAccounts.RowTemplate.Height = TextRenderer.MeasureText("X", dgvAccounts.Font).Height + 3;
                dgvAccounts.DefaultCellStyle.BackColor = Color.Black;
                dgvAccounts.DefaultCellStyle.ForeColor = Color.White;
                dgvAccounts.DefaultCellStyle.SelectionBackColor = Color.FromArgb(79, 79, 79);
                dgvAccounts.BackgroundColor = Color.FromArgb(1, 53, 79);
                dgvAccounts.EnableHeadersVisualStyles = false;

                foreach (DataGridViewColumn column in dgvAccounts.Columns)
                {
                    column.HeaderCell.Style.WrapMode = DataGridViewTriState.True;
                    column.HeaderCell.Style.BackColor = Color.FromArgb(70, 88, 75);
                    column.HeaderCell.Style.ForeColor = Color.FromArgb(255, 255, 206);
                }

            }
            catch (Exception ex)
            {
                log.Error(logHeader("Exception"), ex);
            }
        }
        private LogHeader logHeader(string message = null, object data = null)
        {

             return new LogHeader()
             {
                userName = _manager.UserName,
                version = _manager.Version,
                broker = "ETrade",
                sessionId = "N/A",
                location = "Settings",
                message = message,
                data = data
            };        

        }
        private void loadAccountsSnapshot()
        {
            try
            {
                var accounts = _manager.Api.GetUserPortfolioSnapshot();
                int rowCount = 0;
                
                foreach( var account in accounts)
                {
                    dgvAccounts.Rows.Add(account.Id,
                                          account.Status,
                                           account.Description,
                                            account.Mode,
                                             account.QuoteMode,
                                              account.BalanceDetail.Computed.RealTimeValues.totalAccountValue,
                                               account.Positions?.Count,
                                                account.ManagedOrderCount(),
                                                 account.Linked);



                    if (account.Linked)
                    {
                       _linkedAccountsState.Add(account.Id);
                        if( account.ManagedOrderCount() > 0)
                        {
                            var cell = dgvAccounts.Rows[rowCount].Cells["Link"] as DataGridViewCheckBoxCell;
                            cell.FlatStyle = FlatStyle.Flat;
                            cell.Style.ForeColor = Color.DarkGray;

                            cell.ReadOnly = true;
                        }
                    }
                    rowCount++;
                }

            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        private void cmdExit_Click(object sender, EventArgs e)
        {
            Close();
        }
        private void cmdSave_Click(object sender, EventArgs e)
        {
            _diconnectFlag = SaveSettings();
            _reconnectFlag = _diconnectFlag;
            Close();
        }
        private void cmdRemoveToken_Click(object sender, EventArgs e)
        {
            _manager.UnregisterUser();
            _diconnectFlag = _manager.IsConnected();
            Close();
        }
        private void cmdExitFromUnregister_Click(object sender, EventArgs e)
        {
            Close();
        }
        private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (tabStripSettings.SelectedIndex == 0)
                Size = new Size(780, 238);
            else
                Size = new Size(1024, 412);
        }
               
    }
}