//
// Licensed to the Apache Software Foundation (ASF) under one or more
// contributor license agreements.  See the NOTICE file distributed with
// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You under the Apache License, Version 2.0
// (the "License"); you may not use this file except in compliance with
// the License.  You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

using System;
using System.Web;
using System.Web.Security;
using Trade.BusinessServiceClient;
using Trade.StockTraderWebApplicationModelClasses;
using Trade.StockTraderWebApplicationSettings;
using Trade.Utility;

namespace Trade.Web
{
    /// <summary>
    /// Allows users to enter number of shares for a buy/sell operation.
    /// </summary>
    public partial class StockTrade : System.Web.UI.Page
    {

        protected void Page_Load(object sender, EventArgs e)
        {
            string userid = null;
            BSLClient businessServicesClient = new BSLClient();
            string action = Input.InputText(Request["action"], 5) ?? string.Empty;

            if (action.Equals(StockTraderUtility.ORDER_TYPE_BUY, StringComparison.InvariantCultureIgnoreCase))
            {
                this.InvalidActionPanel.Visible = false;
                this.BuyPanel.Visible = true;

                string quoteSymbol = Input.InputText(Request["symbol"], StockTraderUtility.QUOTESYMBOL_MAX_LENGTH);
                QuoteDataUI quote = businessServicesClient.getQuote(quoteSymbol);

                this.Symbol.Value = quoteSymbol;
                this.BuySymbol.Text = quote.quoteLink;
                this.BuyCurrentPrice.Text = quote.price.ToString("C");

                this.CancelBuy.PostBackUrl = Settings.PAGE_QUOTES + "?symbols=" + quoteSymbol;
            }
            else if (action.Equals(StockTraderUtility.ORDER_TYPE_SELL, StringComparison.InvariantCultureIgnoreCase))
            {
                this.InvalidActionPanel.Visible = false;
                this.SellPanel.Visible = true;

                this.CancelSell.PostBackUrl = GetReturnUrl();

                string holdingIdString = Request["holdingid"];
                this.HoldingId.Text = holdingIdString;
                int holdingId;
                if (Int32.TryParse(holdingIdString, out holdingId))
                {
                    HoldingDataUI holding = businessServicesClient.getHolding(userid, holdingId);
                    
                    this.HoldingQuantity.Text = holding.quantity;
                    this.HoldingSymbol.Text = holding.quoteID;
                    
                    SellQuantityRangeValidator.MaximumValue = holding.quantityDouble.ToString();
                    if(!this.Page.IsPostBack) SellQuantity.Text = holding.quantityDouble.ToString();
                }
            }
            else
            {
                this.InvalidActionButton.PostBackUrl = GetReturnUrl();
            }
        }

        protected void Buy_Click(object sender, EventArgs e)
        {
            Response.Redirect(Settings.PAGE_ORDER + "?action=" + StockTraderUtility.ORDER_TYPE_BUY 
                + "&symbol=" + this.Symbol.Value
                + "&quantity=" + this.BuyQuantity.Text);
        }

        protected void Sell_Click(object sender, EventArgs e)
        {
            Response.Redirect(Settings.PAGE_ORDER + "?action=" + StockTraderUtility.ORDER_TYPE_SELL 
                + "&holdingid=" + this.HoldingId.Text
                + "&quantity=" + this.SellQuantity.Text);
        }

        private string GetReturnUrl()
        {
            string returnUrl = Input.InputText(Request["return"], 25) ?? string.Empty;
            if (!string.IsNullOrEmpty(returnUrl))
            {
                return returnUrl;
            }

            if (Request.UrlReferrer != null)
            {
                return Request.UrlReferrer.ToString();
            }
            return Settings.PAGE_QUOTES;
        }
    }
}