//===================================================================================

// Microsoft patterns & practices

// Composite Application Guidance for Windows Presentation Foundation and Silverlight

//===================================================================================

// Copyright (c) Microsoft Corporation.  All rights reserved.

// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY

// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT

// LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

// FITNESS FOR A PARTICULAR PURPOSE.

//===================================================================================

// The example companies, organizations, products, domain names,

// e-mail addresses, logos, people, places, and events depicted

// herein are fictitious.  No association with any real company,

// organization, product, domain name, email address, logo, person,

// places, or events is intended or should be inferred.

//===================================================================================

using System.ComponentModel;

using StockTraderRI.Infrastructure.Models;



namespace StockTraderRI.Modules.Position.PositionSummary

{

    public class PositionSummaryItem : INotifyPropertyChanged

    {

        private const string GAINLOSSPERCENTPROPERTYNAME = "GainLossPercent";

        private const string MARKETVALUEPROPERTYNAME = "MarketValue";



        public PositionSummaryItem(string tickerSymbol, decimal costBasis, long shares, decimal currentPrice)

        {

            TickerSymbol = tickerSymbol;

            CostBasis = costBasis;

            Shares = shares;

            CurrentPrice = currentPrice;

        }



        private string _tickerSymbol;



        public string TickerSymbol

        {

            get

            {

                return _tickerSymbol;

            }

            set

            {

                if (!value.Equals(_tickerSymbol))

                {

                    _tickerSymbol = value;

                    PropertyChanged(this, new PropertyChangedEventArgs("TickerSymbol"));

                }

            }

        }





        private decimal _costBasis;



        public decimal CostBasis

        {

            get

            {

                return _costBasis;

            }

            set

            {

                if (!value.Equals(_costBasis))

                {

                    _costBasis = value;

                    PropertyChanged(this, new PropertyChangedEventArgs("CostBasis"));

                    PropertyChanged(this, new PropertyChangedEventArgs(GAINLOSSPERCENTPROPERTYNAME));

                }

            }

        }





        private long _shares;



        public long Shares

        {

            get

            {

                return _shares;

            }

            set

            {

                if (!value.Equals(_shares))

                {

                    _shares = value;

                    PropertyChanged(this, new PropertyChangedEventArgs("Shares"));

                    PropertyChanged(this, new PropertyChangedEventArgs(MARKETVALUEPROPERTYNAME));

                    PropertyChanged(this, new PropertyChangedEventArgs(GAINLOSSPERCENTPROPERTYNAME));

                }

            }

        }





        private decimal _currentPrice;



        public decimal CurrentPrice

        {

            get

            {

                return _currentPrice;

            }

            set

            {

                if (!value.Equals(_currentPrice))

                {

                    _currentPrice = value;

                    PropertyChanged(this, new PropertyChangedEventArgs("CurrentPrice"));

                    PropertyChanged(this, new PropertyChangedEventArgs(MARKETVALUEPROPERTYNAME));

                    PropertyChanged(this, new PropertyChangedEventArgs(GAINLOSSPERCENTPROPERTYNAME));

                }

            }

        }



        public decimal MarketValue

        {

            get

            {

                return (_shares * _currentPrice);

            }

        }



        public decimal GainLossPercent

        {

            get

            {

                return ((CurrentPrice * Shares - CostBasis) * 100 / CostBasis);

            }

        }



        #region INotifyPropertyChanged Members



        public event PropertyChangedEventHandler PropertyChanged = delegate { };



        #endregion

    }

}