class.trade.php

<?php
class Trade
{
	public $trade_value;
	public $trade_amount;
	public $trade_type;
	public $trade_id;
	public $trade_to;
	public $trade_from;
	public $trade_owner;
	public $etrade_owner;
	public $etrade_id;
	public $etrade_value;
	public $etrade_amount;
	public function UpdateTrade()
	{
		$id = $this->trade_id;
		$amount = $this->trade_amount;
		if($this->trade_amount == 0)
		{
		
			mysql_query("DELETE FROM trades WHERE `Id`='$id'");
		}
		else
		{
			mysql_query("UPDATE trades SET `Amount`='$amount' WHERE `Id`='$id'");
		}
	}
	public function UpdateETrade()
	{
		$id = $this->etrade_id;
		$amount = $this->etrade_amount;
		if($this->etrade_amount == 0)
		{
		
			mysql_query("DELETE FROM trades WHERE `Id`='$id'");
		}
		else
		{
			mysql_query("UPDATE trades SET `Amount`='$amount' WHERE `Id`='$id'");
		}
	}
	function Trade($id)
	{
		$tradesql = mysql_query("SELECT * FROM trades WHERE `Id`='$id'");
		$this->trade_value = mysql_result($tradesql,0,"Value");
		$this->trade_amount = mysql_result($tradesql,0,"Amount");
		$this->trade_id = $id;
		$this->trade_from = mysql_result($tradesql,0,"From");
		$this->trade_to = mysql_result($tradesql,0,"To");
		$this->trade_owner = mysql_result($tradesql,0,"User_ID");
		if($this->trade_to != "BTC")
		{
			$this->trade_type = "BUY";
		}
		else
		{
			$this->trade_type = "SELL";
		}
	}
	public function GetEquivalentTrade()
	{
		$from = $this->trade_from;
		$value = $this->trade_value;
		echo $from;
		$tradesql2 = mysql_query("SELECT * FROM trades WHERE `To` = '$from' AND `Value`=$value");
		$this->etrade_id = mysql_result($tradesql2,0,"Id");
		$this->etrade_value = mysql_result($tradesql2,0,"Value");
		$this->etrade_amount = mysql_result($tradesql2,0,"Amount");
		$this->etrade_owner = mysql_result($tradesql2,0,"User_ID");
	}
	public function ExecuteTrade()
	{
		if($this->etrade_id != NULL)
		{
			$difference = $this->etrade_amount - $this->trade_amount;

			if($difference < 0)
			{
			echo "1";
				$newamount = 0 - $difference;
				$sellmoney = $this->etrade_value * $this->etrade_amount;	
				$buymoney = ($this->trade_amount - $newamount);
				AddMoney($sellmoney, $this->etrade_owner, "BTC");
				AddMoney($buymoney,$this->trade_owner,$this->trade_to);
				$this->trade_amount = $newamount;
				$this->etrade_amount = 0;
				
			}
			if($difference > 0)
			{
			echo "2";
				$newamount = 0 + $difference;
				$sellmoney = ($this->etrade_amount - $newamount) * $this->etrade_value;
				AddMoney($sellmoney, $this->etrade_owner, "BTC");
				AddMoney($this->trade_amount,$this->trade_owner,$this->trade_to);
				$this->etrade_amount = $newamount;
				$this->trade_amount=0;
			}
			if($difference == 0)
			{
			echo "3";
				AddMoney($this->etrade_amount * $this->etrade_value, $this->etrade_owner, "BTC");
				AddMoney($this->trade_amount,$this->trade_owner,$this->trade_to);
				$this->etrade_amount=0;
				$this->trade_amount=0;
			}
			$this->UpdateTrade();
			$this->UpdateETrade();
			mysql_query("UPDATE markets SET `Last_Trade`='". $this->etrade_value . "' WHERE `Acronymn`='".$this->trade_to . "'");
		}
	}
}
?>