using GalaSoft.MvvmLight;
using System.Windows.Media;

namespace Muchinfo.MTPClient.Data.Model.QuoteItem
{
    /// <summary>
    /// QuoteItemBase类
    /// </summary>
    public class QuoteItemBase : ObservableObject
    {
        #region Fields

        protected static readonly Brush AscBrush = new SolidColorBrush(Color.FromRgb(255, 50, 50));
        protected static readonly Brush DecBrush = new SolidColorBrush(Color.FromRgb(0, 255, 0));
        protected static readonly Brush DefaultBrush = new SolidColorBrush(Colors.White);
        protected static readonly string DefaultString = "-";

        /// <summary>
        /// 分类
        /// </summary>      
        private string _sort;

        /// <summary>
        /// 代码
        /// </summary>      
        private int _code;

        /// <summary>
        /// 现价
        /// </summary>      
        private decimal _currentPrice;

        /// <summary>
        /// 时间
        /// </summary>      
        private string _date;

        /// <summary>
        /// 最高
        /// </summary>      
        private decimal _high;

        /// <summary>
        /// 昨收
        /// </summary>      
        private decimal _lastClose;

        /// <summary>
        /// 最低
        /// </summary>      
        private decimal _low;

        /// <summary>
        /// 市场
        /// </summary>      
        private string _market;

        /// <summary>
        /// 名称
        /// </summary>      
        private string _name;

        /// <summary>
        /// 今开
        /// </summary>      
        private decimal _open;

        #endregion Fields

        #region Properties

        #region Public Properties

        /// <summary>
        /// 振幅 ((最高-最低）/昨收）
        /// </summary>
        public decimal Amplitude
        {
            get
            {
                if (LastClose != 0)
                {
                    return (High - Low) / LastClose;
                }
                else
                {
                    return (High - Low);
                }
            }
        }

        /// <summary>
        /// 振幅颜色
        /// </summary>
        public Brush AmplitudeColor
        {
            get
            {
                return GetBrush(Amplitude, 0);
            }
        }

        /// <summary>
        /// Gets the amplitude display.
        /// </summary>
        public string AmplitudeDisplay
        {
            get
            {
                return Amplitude.ToString("P2");
            }
        }

        /// <summary>
        /// 分类
        /// </summary>
        public string Sort
        {
            get
            {
                return _sort;
            }
            set
            {
                Set(() => Sort, ref _sort, value);
            }
        }

        /// <summary>
        /// 代码
        /// </summary>
        public int Code
        {
            get
            {
                return _code;
            }
            set
            {
                Set(() => Code, ref _code, value);
            }
        }

        /// <summary>
        /// 现价
        /// </summary>
        public decimal CurrentPrice
        {
            get
            {
                return _currentPrice;
            }
            set
            {
                Set(() => CurrentPrice, ref _currentPrice, value);
                ////RaisePropertyChanged(() => IncreasePercent);
                RaisePropertyChanged(() => IncreasePercentDisplay);
                RaisePropertyChanged(() => IncreaseValue);
                RaisePropertyChanged(() => IncreasePercentColor);
                RaisePropertyChanged(() => IncreaseValueColor);
                RaisePropertyChanged(() => CurrentPriceColor);
            }
        }

        /// <summary>
        /// 现价颜色
        /// </summary>
        public Brush CurrentPriceColor
        {
            get
            {
                return GetBrush(_currentPrice, _lastClose);
            }
        }

        /// <summary>
        /// 时间
        /// </summary>
        public string Date
        {
            get
            {
                return _date;
            }
            set
            {
                Set(() => Date, ref _date, value);
            }
        }

        /// <summary>
        /// Gets the color of the code.
        /// </summary>
        public Brush DefaultColor
        {
            get
            {
                return DefaultBrush;
            }
        }

        /// <summary>
        /// 交易所代码
        /// </summary>
        public string Exchange
        {
            get;
            set;
        }

        /// <summary>
        /// 最高
        /// </summary>
        public decimal High
        {
            get
            {
                return _high;
            }
            set
            {
                Set(() => High, ref _high, value);
                RaisePropertyChanged(() => AmplitudeDisplay);
                RaisePropertyChanged(() => AmplitudeColor);
            }
        }

        /// <summary>
        /// 最高颜色
        /// </summary>
        public Brush HighColor
        {
            get
            {
                return GetBrush(_high, _lastClose);
            }
        }

        /// <summary>
        /// 涨幅%(（现价-昨收）/昨收）
        /// </summary>
        public decimal IncreasePercent
        {
            get
            {
                if (LastClose != 0)
                {
                    return (CurrentPrice - LastClose) / LastClose;
                }
                return (CurrentPrice - LastClose);
            }
        }

        /// <summary>
        /// 涨幅%颜色
        /// </summary>
        public Brush IncreasePercentColor
        {
            get
            {
                return GetBrush(IncreasePercent, 0);
            }
        }

        /// <summary>
        /// Gets the increase percent display.
        /// </summary>
        public string IncreasePercentDisplay
        {
            get
            {
                return IncreasePercent.ToString("P2");
            }
        }

        /// <summary>
        /// 涨跌（现价-昨收）
        /// </summary>
        public decimal IncreaseValue
        {
            get
            {
                var value = (CurrentPrice - LastClose);
                return decimal.Parse(value.ToString("#.00"));
            }
        }

        /// <summary>
        /// 涨跌颜色
        /// </summary>
        public Brush IncreaseValueColor
        {
            get
            {
                return GetBrush(IncreaseValue, 0);
            }
        }

        /// <summary>
        /// 昨收
        /// </summary>
        public decimal LastClose
        {
            get
            {
                return _lastClose;
            }
            set
            {
                Set(() => LastClose, ref _lastClose, value);
            }
        }

        /// <summary>
        /// 最低
        /// </summary>
        public decimal Low
        {
            get
            {
                return _low;
            }
            set
            {
                Set(() => Low, ref _low, value);
                RaisePropertyChanged(() => AmplitudeDisplay);
                RaisePropertyChanged(() => AmplitudeColor);
            }
        }

        /// <summary>
        /// 最低颜色
        /// </summary>
        public Brush LowColor
        {
            get
            {
                return GetBrush(_low, 0);
            }
        }

        /// <summary>
        /// 市场
        /// </summary>
        public string Market
        {
            get
            {
                return _market;
            }
            set
            {
                Set(() => Market, ref _market, value);
            }
        }

        /// <summary>
        /// 名称
        /// </summary>
        public string Name
        {
            get
            {
                return _name;
            }
            set
            {
                Set(() => Name, ref _name, value);
            }
        }

        /// <summary>
        /// Gets the color of the name.
        /// </summary>
        public Brush NameColor
        {
            get
            {
                return new SolidColorBrush(Colors.Yellow);
            }
        }

        /// <summary>
        /// 今开
        /// </summary>
        public decimal Open
        {
            get
            {
                return _open;
            }
            set
            {
                Set(() => Open, ref _open, value);
                RaisePropertyChanged(() => OpenColor);
            }
        }

        /// <summary>
        /// 今开颜色
        /// </summary>
        public Brush OpenColor
        {
            get
            {
                return GetBrush(_open, _lastClose);
            }
        }

        #endregion Public Properties

        #endregion Properties

        #region Methods

        #region Public Methods

        /// <summary>
        /// 更新对象属性值(只更新需要字段)
        /// </summary>
        /// <param name="item">The item.</param>
        public virtual void UpdateFrom(QuoteItemBase item)
        {
            //只更新需要字段
            if (!this.CurrentPrice.Equals(item.CurrentPrice))
            {
                this.CurrentPrice = item.CurrentPrice;
            }
            if (!this.High.Equals(item.High))
            {
                this.High = item.High;
            }
            if (!this.Low.Equals(item.Low))
            {
                this.Low = item.Low;
            }
        }

        #endregion Public Methods

        #region Protected Methods

        /// <summary>
        /// Gets the brush.
        /// </summary>
        /// <param name="source">The source.</param>
        /// <param name="destination">The destination.</param>
        /// <returns>Brush.</returns>
        protected Brush GetBrush(decimal source, decimal destination)
        {
            if (source > destination)
            {
                return AscBrush;
            }
            if (source < destination)
            {
                return DecBrush;
            }
            return DefaultBrush;
        }

        #endregion Protected Methods

        #endregion Methods
    }
}