using System;
using System.Collections.Generic;
using System.Text;
using MySql.Data.MySqlClient;
using MarketData.MarketDataModel;
using MarketData.Utils;

namespace MarketData.DataAccess
{
  public class InsiderTransactionDA
  {
    private InsiderTransactionDA()
    {
    }
    public static InsiderTransactionSummaries GetInsiderTransactionSummaries(String symbol,DateTime? minDate)
    {
      MySqlConnection sqlConnection = null;
      MySqlDataReader sqlDataReader = null;
			MySqlCommand sqlCommand=null;
      InsiderTransactionSummaries insiderTransactionSummaries =new InsiderTransactionSummaries();
      String strQuery = null; 

      try
      {
        StringBuilder sb = new StringBuilder();
        sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
        sb.Append("select transaction_date,sum(number_or_value_acquired_disposed) from InsiderTransaction where ");
        sb.Append(" symbol=").Append("'").Append(symbol).Append("' ");
        if(null!=minDate)sb.Append(" and transaction_date>=").Append("'").Append(Utility.DateTimeToStringYYYYHMMHDD(minDate.Value)).Append("'");
        sb.Append(" and number_or_value_acquired_disposed is not null group by transaction_date order by transaction_date desc  ");
        strQuery = sb.ToString(); ;
        sqlCommand = new MySqlCommand(strQuery, sqlConnection);
        sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
        sqlDataReader = sqlCommand.ExecuteReader();
        while (sqlDataReader.Read())
        {
          InsiderTransactionSummary insiderTransactionSummary=new InsiderTransactionSummary();
          insiderTransactionSummary.Symbol=symbol;
          insiderTransactionSummary.TransactionDate=sqlDataReader.GetDateTime(0);
          insiderTransactionSummary.NumberOfSharesAcquiredDisposed=sqlDataReader.GetDouble(1);
          insiderTransactionSummaries.Add(insiderTransactionSummary);
        }
        return insiderTransactionSummaries;
      }
      catch (Exception exception)
      {
        MDTrace.WriteLine(LogLevel.DEBUG,String.Format("GetInsiderTransactionSummaries Exception: {0}",exception.ToString()));
        return null;
      }
      finally
      {
				if(null!=sqlCommand)sqlCommand.Dispose();
        if (null != sqlDataReader) {sqlDataReader.Close();sqlDataReader.Dispose();}
        if (null != sqlConnection) sqlConnection.Close();
      }
    }

    public static InsiderTransactions GetLatestInsiderTransactions()
    {
      MySqlConnection sqlConnection = null;
      MySqlDataReader sqlDataReader = null;
      MySqlCommand sqlCommand =null;
      InsiderTransactions insiderTransactions=new InsiderTransactions();
      String strQuery = null;

      try
      {
        StringBuilder sb = new StringBuilder();
        sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
        sb.Append("SELECT symbol,filing_date,transaction_date,insider_name,ownership_type,securities,nature_of_transaction,number_or_value_acquired_disposed,price,form,sec_accession_number,form_row_number,modified FROM insidertransaction WHERE TRANSACTION_DATE=(SELECT MAX(TRANSACTION_DATE) FROM insidertransaction WHERE TRANSACTION_DATE<=NOW() LIMIT 1)");
        strQuery = sb.ToString(); ;
        sqlCommand = new MySqlCommand(strQuery, sqlConnection);
        sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
        sqlDataReader = sqlCommand.ExecuteReader();
        while (sqlDataReader.Read())
        {
          InsiderTransaction insiderTransaction=new InsiderTransaction();
          insiderTransaction.Symbol=sqlDataReader.GetString(0);
          insiderTransaction.FilingDate=sqlDataReader.GetDateTime(1);
          insiderTransaction.TransactionDate=sqlDataReader.GetDateTime(2);
          insiderTransaction.InsiderName=sqlDataReader.GetString(3);
          insiderTransaction.OwnershipType=sqlDataReader.GetString(4);
          insiderTransaction.Securities=sqlDataReader.GetString(5);
          insiderTransaction.NatureOfTransaction=sqlDataReader.GetString(6);
          if(!sqlDataReader.IsDBNull(7))insiderTransaction.NumberOrValueAcquiredDisposed=sqlDataReader.GetDouble(7);
          else insiderTransaction.NumberOrValueAcquiredDisposed=Double.NaN;
          if(!sqlDataReader.IsDBNull(8))insiderTransaction.Price=sqlDataReader.GetDouble(8);
          else insiderTransaction.Price=Double.NaN;
          insiderTransaction.Form=sqlDataReader.GetString(9);
          insiderTransaction.SECAccessionNumber=sqlDataReader.GetString(10);
          insiderTransaction.FormRowNumber=sqlDataReader.GetString(11);
          insiderTransaction.Modified=sqlDataReader.GetDateTime(12);
          insiderTransactions.Add(insiderTransaction);
        }
        return insiderTransactions;
      }
      catch (Exception exception)
      {
        MDTrace.WriteLine(LogLevel.DEBUG,String.Format("GetLatestInsiderTransactions Exception: {0}",exception.ToString()));
        return null;
      }
      finally
      {
				if(null!=sqlCommand)sqlCommand.Dispose();
        if (null != sqlDataReader) {sqlDataReader.Close();sqlDataReader.Dispose();}
        if (null != sqlConnection) sqlConnection.Close();
      }
    }

    public static InsiderTransactions GetInsiderTransactions(String symbol)
    {
      MySqlConnection sqlConnection = null;
      MySqlDataReader sqlDataReader = null;
      MySqlCommand sqlCommand =null;
      InsiderTransactions insiderTransactions=new InsiderTransactions();
      String strQuery = null;

      try
      {
        StringBuilder sb = new StringBuilder();
        sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
        sb.Append("select symbol,filing_date,transaction_date,insider_name,ownership_type,securities,nature_of_transaction,number_or_value_acquired_disposed,price,form,sec_accession_number,form_row_number,modified from InsiderTransaction where symbol=");
        sb.Append("'").Append(symbol).Append("'").Append(" order by filing_date desc");
        strQuery = sb.ToString(); ;
        sqlCommand = new MySqlCommand(strQuery, sqlConnection);
        sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
        sqlDataReader = sqlCommand.ExecuteReader();
        while (sqlDataReader.Read())
        {
          InsiderTransaction insiderTransaction=new InsiderTransaction();
          insiderTransaction.Symbol=sqlDataReader.GetString(0);
          insiderTransaction.FilingDate=sqlDataReader.GetDateTime(1);
          insiderTransaction.TransactionDate=sqlDataReader.GetDateTime(2);
          insiderTransaction.InsiderName=sqlDataReader.GetString(3);
          insiderTransaction.OwnershipType=sqlDataReader.GetString(4);
          insiderTransaction.Securities=sqlDataReader.GetString(5);
          insiderTransaction.NatureOfTransaction=sqlDataReader.GetString(6);
          if(!sqlDataReader.IsDBNull(7))insiderTransaction.NumberOrValueAcquiredDisposed=sqlDataReader.GetDouble(7);
          else insiderTransaction.NumberOrValueAcquiredDisposed=Double.NaN;
          if(!sqlDataReader.IsDBNull(8))insiderTransaction.Price=sqlDataReader.GetDouble(8);
          else insiderTransaction.Price=Double.NaN;
          insiderTransaction.Form=sqlDataReader.GetString(9);
          insiderTransaction.SECAccessionNumber=sqlDataReader.GetString(10);
          insiderTransaction.FormRowNumber=sqlDataReader.GetString(11);
          insiderTransaction.Modified=sqlDataReader.GetDateTime(12);
          insiderTransactions.Add(insiderTransaction);
        }
        return insiderTransactions;
      }
      catch (Exception exception)
      {
        MDTrace.WriteLine(LogLevel.DEBUG,String.Format("GetInsiderTransactions Exception: {0}",exception.ToString()));
        return null;
      }
      finally
      {
				if(null!=sqlCommand)sqlCommand.Dispose();
        if (null != sqlDataReader) {sqlDataReader.Close();sqlDataReader.Dispose();}
        if (null != sqlConnection) sqlConnection.Close();
      }
    }


    public static bool InsertInsiderTransactions(InsiderTransactions insiderTransactions)
    {
      MySqlConnection sqlConnection = null;
      MySqlTransaction sqlTransaction = null;
      Dictionary<String,InsiderTransaction> insiderTransactionsUniqueKey = new Dictionary<String,InsiderTransaction>();
      String strQuery = null;
      DateTime modified=DateTime.Now;

      try
      {
        sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
        if (!DeleteInsiderTransactions(insiderTransactions, sqlConnection)) return false;
        sqlTransaction = sqlConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted);
        foreach (InsiderTransaction insiderTransaction in insiderTransactions)
        {
          String insiderTransactionKey = insiderTransaction.Form + insiderTransaction.SECAccessionNumber + insiderTransaction.FormRowNumber;
          if (insiderTransactionsUniqueKey.ContainsKey(insiderTransactionKey))
          {
            MDTrace.WriteLine(LogLevel.DEBUG,"*********************************************************************************************************");

            MDTrace.WriteLine(LogLevel.DEBUG,String.Format("Collection already contains a value for Form:{0} SECAccessionNumber:{1} FormRowNumber:{2}",
              insiderTransaction.Form,insiderTransaction.SECAccessionNumber,insiderTransaction.FormRowNumber));
            
            MDTrace.WriteLine(LogLevel.DEBUG,String.Format("Item attempting to add: Symbol:{0} InsiderName:{1} OwnershipType:{2} Securities:{3} NatureOfTransaction:{4} NumberOrValueAcquiredDisposed:{5} Price:{7} FilingDate:{7} TransactionDate:{8}",
              insiderTransaction.Symbol, insiderTransaction.InsiderName,insiderTransaction.OwnershipType,insiderTransaction.Securities,insiderTransaction.NatureOfTransaction,insiderTransaction.NumberOrValueAcquiredDisposed,insiderTransaction.Price,
              Utility.DateTimeToStringMMHDDHYYYY(insiderTransaction.FilingDate),Utility.DateTimeToStringMMSDDSYYYY(insiderTransaction.TransactionDate)));

            MDTrace.WriteLine(LogLevel.DEBUG,String.Format("Item already in collection: Symbol:{0} InsiderName:{1} OwnershipType:{2} Securities:{3} NatureOfTransaction:{4} NumberOrValueAcquiredDisposed:{5} Price:{6} FilingDate:{7} TransactionDate:{8}",
              insiderTransaction.Symbol,insiderTransaction.InsiderName,insiderTransaction.OwnershipType,insiderTransaction.Securities,insiderTransaction.NatureOfTransaction,insiderTransaction.NumberOrValueAcquiredDisposed,insiderTransaction.Price,
              Utility.DateTimeToStringMMHDDHYYYY(insiderTransaction.FilingDate),Utility.DateTimeToStringMMSDDSYYYY(insiderTransaction.TransactionDate)));

            MDTrace.WriteLine(LogLevel.DEBUG,"*********************************************************************************************************");

            continue;
          } 
          StringBuilder sb = new StringBuilder();
          sb.Append("insert into InsiderTransaction (symbol,filing_date,transaction_date,insider_name,ownership_type,securities,nature_of_transaction,number_or_value_acquired_disposed,price,form,sec_accession_number,form_row_number,modified) ");
          sb.Append("values(");
          sb.Append("'").Append(insiderTransaction.Symbol).Append("'").Append(",");
          sb.Append("'").Append(Utility.DateTimeToStringYYYYHMMHDD(insiderTransaction.FilingDate)).Append("'").Append(",");
          sb.Append("'").Append(Utility.DateTimeToStringYYYYHMMHDD(insiderTransaction.TransactionDate)).Append("'").Append(",");
          sb.Append("'").Append(SqlUtils.SqlString(insiderTransaction.InsiderName)).Append("'").Append(",");
          sb.Append("'").Append(SqlUtils.SqlString(insiderTransaction.OwnershipType)).Append("'").Append(",");
          sb.Append("'").Append(SqlUtils.SqlString(insiderTransaction.Securities)).Append("'").Append(",");
          sb.Append("'").Append(SqlUtils.SqlString(insiderTransaction.NatureOfTransaction)).Append("'").Append(",");
          if (!Double.IsNaN(insiderTransaction.NumberOrValueAcquiredDisposed)) sb.Append("'").Append(insiderTransaction.NumberOrValueAcquiredDisposed).Append("'").Append(",");
          else sb.Append("null").Append(",");
          if (!Double.IsNaN(insiderTransaction.Price)) sb.Append("'").Append(insiderTransaction.Price).Append("'").Append(",");
          else sb.Append("null").Append(",");
          sb.Append("'").Append(insiderTransaction.Form).Append("'").Append(",");
          sb.Append("'").Append(insiderTransaction.SECAccessionNumber).Append("'").Append(",");
          sb.Append("'").Append(insiderTransaction.FormRowNumber).Append("'").Append(",");
          sb.Append("'").Append(SqlUtils.ToSqlDateTime(modified)).Append("'");
          sb.Append(")");
          strQuery = sb.ToString();
          MySqlCommand sqlCommand = new MySqlCommand(strQuery, sqlConnection, sqlTransaction);
          sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
          sqlCommand.ExecuteNonQuery();
          insiderTransactionsUniqueKey.Add(insiderTransactionKey, insiderTransaction);
					sqlCommand.Dispose();
        }
        sqlTransaction.Commit();
        return true;
      }
      catch (Exception exception)
      {
        MDTrace.WriteLine(LogLevel.DEBUG,String.Format("InsertInsiderTransactions Exception: {0}",exception.ToString()));
        MDTrace.WriteLine(LogLevel.DEBUG,"Query was '" + strQuery + "'");
        return false;
      }
      finally
      {
        if (null != sqlConnection) sqlConnection.Close();
				if(null!=sqlTransaction)sqlTransaction.Dispose();
			}
    }
    private static bool DeleteInsiderTransactions(InsiderTransactions insiderTransactions, MySqlConnection sqlConnection) 
    {
      StringBuilder sb = null;
      String strQuery = null;
      MySqlTransaction sqlTransaction = null;

      try
      {
        if (null == insiderTransactions) return false;
        sqlTransaction = sqlConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted);
        foreach (InsiderTransaction insiderTransaction in insiderTransactions)
        {
          sb = new StringBuilder();
          sb.Append("delete from InsiderTransaction where ");
          sb.Append("symbol='").Append(insiderTransaction.Symbol).Append("'").Append(" and ");
          sb.Append("form='").Append(insiderTransaction.Form).Append("'").Append(" and ");
          sb.Append("sec_accession_number='").Append(insiderTransaction.SECAccessionNumber).Append("'").Append(" and ");
          sb.Append("form_row_number='").Append(insiderTransaction.FormRowNumber).Append("'");
          strQuery = sb.ToString();
          MySqlCommand sqlCommand = new MySqlCommand(strQuery, sqlConnection, sqlTransaction);
          sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
          sqlCommand.ExecuteNonQuery();
        }
        sqlTransaction.Commit();
        return true;
      }
      catch (Exception exception)
      {
        MDTrace.WriteLine(LogLevel.DEBUG,String.Format("DeleteInsiderTransactions Exception: {0}",exception.ToString()));
        if (null != strQuery) MDTrace.WriteLine(LogLevel.DEBUG,"Query was " + strQuery);
        return false;
      }
      finally
      {
				if(null!=sqlTransaction)sqlTransaction.Dispose();
      }
    }
    /// <summary>
    /// Delete InsiderTransaction for given symbol for all years>=given year.
    /// </summary>
    /// <param name="symbol">The symbol.</param>
    /// <param name="yearsGreaterEqual">All years greater then or equal to the year.</param>
    public static bool DeleteInsiderTransactionsYearsGreaterEqual(String symbol, int yearsGreaterEqual) 
    {
      MySqlConnection sqlConnection = null;
      StringBuilder sb = null;
      String strQuery = null;
      MySqlTransaction sqlTransaction = null;

      try
      {
        if (null == symbol) return false;
        sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
        sqlTransaction = sqlConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted);
        sb = new StringBuilder();
        sb.Append("DELETE FROM InsiderTransaction WHERE symbol=");
        sb.Append("'").Append(symbol).Append("'");
        sb.Append(" AND YEAR(filing_date)>=").Append(yearsGreaterEqual);
        strQuery = sb.ToString();
        MySqlCommand sqlCommand = new MySqlCommand(strQuery, sqlConnection, sqlTransaction);
        sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
        sqlCommand.ExecuteNonQuery();
        sqlTransaction.Commit();
        return true;
      }
      catch (Exception exception)
      {
        MDTrace.WriteLine(LogLevel.DEBUG,String.Format("DeleteInsiderTransactionsYearsGreaterEqual Exception: {0}",exception.ToString()));
        if (null != strQuery) MDTrace.WriteLine(LogLevel.DEBUG,"Query was " + strQuery);
        return false;
      }
      finally
      {
				if(null!=sqlTransaction)sqlTransaction.Dispose();
        if(null!=sqlConnection)sqlConnection.Close();
      }
    }
  }
}