Esempio n. 1
0
        /// <summary>
        /// Attempts to sell stocks from the portfolio.
        /// </summary>
        /// <exception cref="InsufficientStocksException"> Thrown if there aren't enough stocks to sell. </exception>
        /// <param name="tick"></param>
        /// <param name="quantity"></param>
        /// <param name="prices"></param>
        /// <returns></returns>
        public decimal SellStock(Ticker tick, int quantity, Dictionary <Ticker, decimal> prices)
        {
            if (stocks.Where(x => x.stockTicker.name == tick.name).Sum(x => x.quantity) < quantity)
            {
                throw new InsufficientStocksException();
            }

            decimal gains = 0m;
            int     i     = 0;

            while (quantity > 0)
            {
                if (stocks[i].stockTicker.name != tick.name)
                {
                    i++;
                }
                if (stocks[i].quantity <= quantity)
                {
                    quantity -= stocks[i].quantity;
                    gains    += (prices[tick] - stocks[i].priceAtPurchase) * stocks[i].quantity;
                    stocks.RemoveAt(i); // No need to increment i
                }
                else
                {
                    int newQuantity = stocks[i].quantity - quantity;
                    gains    += (prices[tick] - stocks[i].priceAtPurchase) * quantity;
                    stocks[i] = new StockCollection(stocks[i].stockTicker, newQuantity, stocks[i].priceAtPurchase);
                }
            }
            realizedGains += gains;
            return(gains);
        }
Esempio n. 2
0
        /// <summary>
        /// Adds purchase to stock history.
        /// </summary>
        /// <param name="tick"> The ticker of the stock purchase. </param>
        /// <param name="quantity"> The quantity of the stock to buy. </param>
        /// <param name="prices"> The price of the stock. </param>
        public void BuyStock(Ticker tick, int quantity, Dictionary <Ticker, decimal> prices)
        {
            StockCollection purchase = new StockCollection(tick, quantity, prices[tick]);

            stocks.Add(purchase);
        }