//
// 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.
//

//  .Net StockTrader Sample WCF Application for Benchmarking, Performance Analysis and Design Considerations for Service-Oriented Applications
//======================================================================================================
// Code originally contributed by Microsoft Corporation.
// This contribution to the Stonehenge project is limited strictly 
// to the source code that is submitted in this submission.  
// Any technology, including underlying platform technology, 
// that is referenced or required by the submitted source code 
// is not a part of the contribution.  
// For example and not by way of limitation, 
// any systems/Windows libraries (WPF, WCF, ASP.NET etc.) 
// required to run the submitted source code is not a part of the contribution
//======================================================================================================
//======================================================================================================
// Contains .NET StockTrader application specific utility methods and constants/statics used by the app.
//======================================================================================================


using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.ServiceModel;
using System.ServiceModel.Description;
using System.Configuration;
using Trade.Utility.Loggers;

namespace Trade.Utility
{

    /// <summary>
    /// Utility class with constants used in StockTrader app/services. 
    /// </summary>
    public static class StockTraderUtility
    {
        //Exception Messages and Strings
        public static readonly string EXCEPTION_DOTNET_DUPLICATE_PRIMARY_KEY = "Violation of PRIMARY KEY";
        public static readonly string EXCEPTION_WEBSPHERE_DUPLICATE_PRIMARY_KEY = "org.omg.CORBA.portable.UnknownException";
        public static readonly string EXCEPTION_MESSAGE_INVALID_ORDERMODE_CONFIG = "This 'OrderMode' setting is not a valid setting (settings are case-sensitive).";
        public static readonly string EXCEPTION_MESSAGE_INVALID_TXMMODEL_CONFIG = "This 'Use System.Transactions Globally' setting is not a valid setting.  Valid settings are 'true' or 'false'. Please fix in: ";
        public static readonly string EXCEPTION_MESSAGE_VALID_ORDERMODEVALUES = "Valid values are: 'ASync_DotNet_Http', 'ASync_DotNet_WsHttp_MSecurity', 'ASync_PHP_Http', 'ASync_PHP_WsHttp_MSecurity', 'ASync_WSAS_Http', 'ASync_WSAS_WsHttp_MSecurity'.";
        public static readonly string EXCEPTION_MESSAGE_INVALID_HOLDING_BAD_QUOTE = "Holding with non-valid Quote Symbol: holdingID=";
        public static readonly string EXCEPTION_MESSAGE_INVALID_HOLDING_NOT_FOUND = "Holding not found!";
        public static readonly string EXCEPTION_MESSAGE_INVALID_HOLDING_ZERO_BASIS = "Holding with zero basis!: holdingID=";
        public static readonly string EXCEPTION_MESSAGE_NULL_DATE = "Data is Null. This method or property cannot be called on Null values.";
        public static readonly string EXCEPTION_MESSAGE_BAD_ORDER_PARMS = "Your order was not placed becuase the requested quantity was not valid.";
        public static readonly string EXCEPTION_MESSAGE_BAD_ACTION = "Your order was not placed becuase the requested action is invalid.";
        public static readonly string EXCEPTION_MESSAGE_BAD_ORDER_RETURN = "We are sorry but your order could not be placed. Please try again later.";
        public static readonly string EXCEPTION_MESSAGE_ACID_REGISTRATION = "ACID TEST ON INSERT USERID 'ACID': PLANNED EXCEPTION THROWN!";
        public static readonly string EXCEPTION_MESSAGE_ACID_BUY = "PLANNED ACID TEST: SYMBOL 'ACIDBUY' PLANNED EXCEPTION THROWN!";
        public static readonly string EXCEPTION_MESSAGE_ACID_SELL = "PLANNED ACID TEST: SYMBOL 'ACIDSELL' PLANNED EXCEPTION THROWN!";
        public static readonly string EXCEPTION_MESSAGE_BADORDERTYPE = "Sorry, this order type is not allowed.";
        public static readonly string EXCEPTION_MESSAGE_INVALID_ORDERFORWARDBEHAVIOR_CONFIG = "This 'Order Processing Behavior' setting is not a valid setting (settings are case-sensitive). Please fix in: ";
        public static readonly string EXCEPTION_MESSAGE_INVALID_ORDERFORWARDMODE_CONFIG = "This 'OrderForwardMode' setting is not a valid setting (settings are case-sensitive). Please fix in: ";
        public static readonly string EXCEPTION_MESSAGE_VALID_ORDERFORWARDMODEVALUES = "Valid values are: 'ASync_DotNet_Http', 'ASync_DotNet_WsHttp_MSecurity', 'ASync_PHP_Http', 'ASync_PHP_WsHttp_MSecurity', 'ASync_WSAS_Http', 'ASync_WSAS_WsHttp_MSecurity'.";
        public static readonly string EXCEPTION_MESSAGE_VALID_ORDERFORWARDBEHAVIORVALUES = "Valid values are: 'Forward' and 'Standard'.";
        public static readonly string EXCEPTION_WEBSPHERE_USERID_NOTFOUND = "javax.ejb.ObjectNotFoundException";
        public static readonly string EXCEPTION_WEBSPHERE_INVALID_PASSWORD = "Incorrect password";
        public static readonly string EXCEPTION_MESSAGE_INVALID_ACCESSMODE_CONFIG = "This 'AccessMode' setting is not a valid setting (settings are case-sensitive).";
        public static readonly string EXCEPTION_MESSAGE_VALID_ACCESSMODEVALUES = "Valid values are: 'DotNet_Http_WcfService' (for SOA activation via WCF Self-Host/Http), 'DotNet_WsHttp_WcfService' (for SOA activation via WCF Self-Host/WsHttp), 'PHP_Http_WebService' (for SOA activation via WCF against PHP (WSF) services) and 'WSAS_Http_WebService' (for SOA activation via WCF against WSAS services).";
        public static readonly string EXCEPTION_MESSAGE_DUPLICATE_PRIMARY_KEY = "User ID Already Exists! Please Try a Different User ID.";
        public static readonly string EXCEPTION_MESSAGE_INVALID_LOGIN = "Error Logging In. Invalid Username or Password!";
        public static readonly string EXCEPTION_MESSAGE_BAD_CONFIG = "Error Loading Configuration from Configuration Service.  Please confirm that the {0} client is in the configuration database.";

        //Define max lengths for input fields; 
        public static readonly int ADDRESS_MAX_LENGTH = 100;
        public static readonly int EMAIL_MAX_LENGTH = 100;
        public static readonly int CREDITCARD_MAX_LENGTH = 100;
        public static readonly int FULLNAME_MAX_LENGTH = 100;
        public static readonly int USERID_MAX_LENGTH = 50;
        public static readonly int PASSWORD_MAX_LENGTH = 100;
        public static readonly int OPENBALANCE_MAX_LENGTH = 20;
        public static readonly int QUOTESYMBOL_MAX_LENGTH = 15;
        public static readonly int SYMBOLSTRING_MAXLENGTH = 30;

        //Trade Business Logic constants
        public static readonly decimal BUY_FEE = 15.95m;
        public static readonly decimal SELL_FEE = 25.95m;
        public static readonly decimal PENNY_STOCK_P = .1m;
        public static readonly decimal STOCK_P_HIGH_BAR = 1000m;
        public static readonly decimal STOCK_P_HIGH_BAR_CRASH = .05m;
        public static readonly decimal JUNK_STOCK_MIRACLE_MULTIPLIER = 500m;
        public static readonly int STOCK_CHANGE_MAX_PERCENT = 5;

        //map user strings to ints for faster lookups. We want to catch invalid settings
        //so the user knows what tx model they are running within a service.
        public const string TRANSACTION_STRING_SYSTEMDOTTRANSACTION_TRANSACTION = "true";
        public const string TRANSACTION_STRING_ADONET_TRANSACTION = "false";
        public const int TRANSACTION_MODEL_SYSTEMDOTTRANSACTION_TRANSACTION = 1;
        public const int TRANSACTION_MODEL_ADONET_TRANSACTION = 0;

        //ACID Test Codes
        public static readonly string ACID_TEST_USER = "ACIDUSER";
        public static readonly string ACID_TEST_BUY = "ACIDBUY";
        public static readonly string ACID_TEST_SELL = "ACIDSELL";
        public const string REGISTER_USER = "Register";

        //Service Host Names.  These are good candidates to move into the various repositories to make them more dynamic
        //than defined in code as constants.  Perhaps for next release of StockTrader--easy to do.
        public const string ORDER_PROCESSOR_SERVICE = "StockTrader Order Processor Service";
       
        public const string WEBAPPLICATION = ".NET StockTrader Web Application";
        public const string BUSINESS_SERVICES = "StockTrader Business Services";
       
        //Endpoint - Connected Service Names -- the various modes/bindings we can connect from Web app to Business Services

        //First for Business Services
        public const string DOTNET_SELFHOST_BSL_HTTP = ".NET StockTrader Business Services Http/SOAP";
        public const string DOTNETSELFHOST_BSL_WSHTTP = ".NET StockTrader Business Services Http/WS-* (M-Security)";
        public const string WSO2_BSL_WSHTTP = "WSO2 StockTrader Business Services Http/WS-* (M-Security)";
       
        //Now Endpoint - Connected Service Names for Order Processor
        public const string DOTNET_SELFHOST_OPS_HTTP = ".NET Order Processor Async-Http (SOAP)";
        public const string DOTNET_SELFHOST_OPS_WSHTTP = ".NET Order Processor Async-Http WS-* (M-Security)";
        public const string WSO2_OPS_WSHTTP = "WSO2 Order Processor Async-Http WS-* (M-Security)";
       
        //Order Codes
        public const string ORDER_TYPE_BUY = "buy";
        public const string ORDER_TYPE_SELL = "sell";
        public const string ORDER_TYPE_SELL_ENHANCED = "sellEnhanced";
        public static readonly string ORDER_STATUS_OPEN = "open";
        public static readonly string ORDER_STATUS_CLOSED = "closed";
        public static readonly string ORDER_STATUS_COMPLETED = "completed";

        public const string DAL_SQLSERVER = "Trade.DALSQLServer";
        public const string DAL_MYSQL = "Trade.DALMySQL";
        public const string DAL_ORACLE = "Trade.DALOracle";
        public const string DAL_DB2 = "Trade.DALDB2";

        //Used to cache a Random class used for calculating random price changes vs. creating new
        //Random class on each buy/sell;  
        private static Random rand = new Random(DateTime.Now.Millisecond);

        private static ILogger logger;
        public static ILogger Logger
        {
            get
            {
                if (logger == null)
                {
                    string logging_enabled = ConfigurationManager.AppSettings.Get("LOGGING_ENABLED");
                    if (!logging_enabled.Equals("ON", StringComparison.InvariantCultureIgnoreCase))
                    {
                        logger = new NullLogger();
                    }
                    else
                    {
                        string loggerMode = ConfigurationManager.AppSettings.Get("LOGGER_MODE");
                        switch (loggerMode)
                        {
                            case ("CONSOLE"):
                                logger = new ConsoleLogger();
                                break;
                            case ("EVENT_VIEWER"):
                                logger = new EventViewerLogger();
                                break;
                            default:
                                logger = new NullLogger();
                                break;
                        }
                    }
                }
                return logger;
            }
        }

        //Dermines how much a stock price will change after a trade.
        public static decimal getRandomPriceChangeFactor(decimal current_price)
        {
            if (current_price <= PENNY_STOCK_P)
                return JUNK_STOCK_MIRACLE_MULTIPLIER;
            else if (current_price >= STOCK_P_HIGH_BAR)
                return STOCK_P_HIGH_BAR_CRASH;
            decimal factor = 0m;
            int y = rand.Next(1, STOCK_CHANGE_MAX_PERCENT);
            int x = rand.Next();
            if (x % 2 == 0)
            {
                factor = 1 - ((decimal)y) / 100m;
            }
            else
                factor = 1 + ((decimal)y) / 100m;
            return factor;
        }

        //How much the brokerage is going to charge!
        public static decimal getOrderFee(string orderType)
        {
            if (orderType.ToLower().Equals(ORDER_TYPE_BUY) || orderType.ToLower().Equals(ORDER_TYPE_SELL))
                return BUY_FEE;
            else
                return SELL_FEE;
        }

        public static void DescribeService(ServiceHost host)
        {
            //iterate and display all endpoints via host.Description.Endpoints
            Console.WriteLine();
            Console.WriteLine();
            Console.WriteLine("Configuration for {0} \n", Console.Title);

            ServiceDescription svcDesc = host.Description;
            Console.WriteLine("Configuration name: {0}", svcDesc.ConfigurationName);

            // Iterate through the endpoints contained in the ServiceDescription
            foreach (ServiceEndpoint se in svcDesc.Endpoints)
            {
                Console.WriteLine("Endpoint:");
                Console.WriteLine("\tName: {0}", se.Name);
                Console.WriteLine("\tAddress: {0}", se.Address.ToString());
                Console.WriteLine("\tBinding: {0}", se.Binding.ToString());
                Console.WriteLine("\tContract: {0}", se.Contract.ConfigurationName);
                KeyedByTypeCollection<IEndpointBehavior> behaviors = se.Behaviors;
                foreach (IEndpointBehavior behavior in behaviors)
                {
                    Console.WriteLine("Behavior: {0}", behavior.ToString());
                }
            }

            Console.WriteLine();
            Console.WriteLine("Service Description name: {0}", svcDesc.Name);
            Console.WriteLine("Service Description namespace: {0}", svcDesc.Namespace);
            Console.WriteLine("Service Type: {0}", svcDesc.ServiceType);

            Console.WriteLine();
            Console.WriteLine();
        }
    }
}