//Match Order
private void Make_Order(object sender, EventArgs e)
{
//Create our order!
//Get the price
if (MainService.IsNumber(Price_Input.Text) == false)
{
return;
}
if (Price_Input.Text.IndexOf(",", StringComparison.InvariantCulture) >= 0)
{
MainService.MessageBox("Notice", "NebliDex does not recognize commas for decimals at this time.", "OK", false);
return;
}
decimal price = decimal.Parse(Price_Input.Text, CultureInfo.InvariantCulture);
if (price <= 0)
{
return;
}
if (price > MainService.max_order_price)
{
//Price cannot exceed the max
MainService.MessageBox("Notice", "This price is higher than the maximum price of 10 000 000", "OK", false);
return;
}
//Get the amount
if (MainService.IsNumber(Amount_Input.Text) == false)
{
return;
}
if (Amount_Input.Text.IndexOf(",", StringComparison.InvariantCulture) >= 0)
{
MainService.MessageBox("Notice", "NebliDex does not recognize commas for decimals at this time.", "OK", false);
return;
}
decimal amount = decimal.Parse(Amount_Input.Text, CultureInfo.InvariantCulture);
if (amount <= 0)
{
return;
}
if (MainService.IsNumber(Min_Amount_Input.Text) == false)
{
return;
}
if (Min_Amount_Input.Text.IndexOf(",", StringComparison.InvariantCulture) >= 0)
{
MainService.MessageBox("Notice", "NebliDex does not recognize commas for decimals at this time.", "OK", false);
return;
}
decimal min_amount = decimal.Parse(Min_Amount_Input.Text, CultureInfo.InvariantCulture);
if (min_amount <= 0)
{
MainService.MessageBox("Notice", "The minimum amount is too small.", "OK", false);
return;
}
if (min_amount > amount)
{
MainService.MessageBox("Notice", "The minimum amount cannot be greater than the amount.", "OK", false);
return;
}
decimal total = Math.Round(price * amount, 8);
if (Total_Input.Text.IndexOf(",", StringComparison.InvariantCulture) >= 0)
{
MainService.MessageBox("Notice", "NebliDex does not recognize commas for decimals at this time.", "OK", false);
return;
}
if (MainService.MarketList[MainService.exchange_market].base_wallet == 3 || MainService.MarketList[MainService.exchange_market].trade_wallet == 3)
{
//Make sure amount is greater than ndexfee x 2
if (amount < MainService.ndex_fee * 2)
{
MainService.MessageBox("Notice", "This order amount is too small. Must be at least twice the CN fee (" + String.Format(CultureInfo.InvariantCulture, "{0:0.########}", MainService.ndex_fee * 2) + " NDEX)", "OK", false);
return;
}
}
int wallet = 0;
string msg = "";
bool good = false;
if (order_type == 0)
{
//This is a buy order we are making, so we need base market balance
wallet = MainService.MarketList[MainService.exchange_market].base_wallet;
good = MainService.CheckWalletBalance(wallet, total, ref msg);
if (good == true)
{
//Now check the fees
good = MainService.CheckMarketFees(MainService.exchange_market, order_type, total, ref msg, false);
}
}
else
{
//Selling the trade wallet amount
wallet = MainService.MarketList[MainService.exchange_market].trade_wallet;
good = MainService.CheckWalletBalance(wallet, amount, ref msg);
if (good == true)
{
good = MainService.CheckMarketFees(MainService.exchange_market, order_type, amount, ref msg, false);
}
}
//Show error messsage if balance not available
if (good == false)
{
//Not enough funds or wallet unavailable
MainService.MessageBox("Notice", msg, "OK", false);
return;
}
//Make sure that total is greater than blockrate for the base market and the amount is greater than blockrate for trade market
decimal block_fee1 = 0;
decimal block_fee2 = 0;
int trade_wallet_blockchaintype = MainService.GetWalletBlockchainType(MainService.MarketList[MainService.exchange_market].trade_wallet);
int base_wallet_blockchaintype = MainService.GetWalletBlockchainType(MainService.MarketList[MainService.exchange_market].base_wallet);
block_fee1 = MainService.blockchain_fee[trade_wallet_blockchaintype];
block_fee2 = MainService.blockchain_fee[base_wallet_blockchaintype];
//Now calculate the totals for ethereum blockchain
if (trade_wallet_blockchaintype == 6)
{
block_fee1 = MainService.GetEtherContractTradeFee(MainService.Wallet.CoinERC20(MainService.MarketList[MainService.exchange_market].trade_wallet));
if (MainService.Wallet.CoinERC20(MainService.MarketList[MainService.exchange_market].trade_wallet) == true)
{
block_fee1 = Convert.ToDecimal(MainService.double_epsilon); // The minimum trade size for ERC20 tokens
}
}
if (base_wallet_blockchaintype == 6)
{
block_fee2 = MainService.GetEtherContractTradeFee(MainService.Wallet.CoinERC20(MainService.MarketList[MainService.exchange_market].base_wallet));
if (MainService.Wallet.CoinERC20(MainService.MarketList[MainService.exchange_market].base_wallet) == true)
{
block_fee2 = Convert.ToDecimal(MainService.double_epsilon); // The minimum trade size for ERC20 tokens
}
}
if (total < block_fee2 || amount < block_fee1)
{
//The trade amount is too small
MainService.MessageBox("Notice", "This trade amount is too small to create because it is lower than the blockchain fee.", "OK", false);
return;
}
//ERC20 only check
//We need to check if the ERC20 token contract allows us to pull tokens to the atomic swap contract
bool sending_erc20 = false;
decimal erc20_amount = 0;
int erc20_wallet = 0;
if (order_type == 0 && MainService.Wallet.CoinERC20(MainService.MarketList[MainService.exchange_market].base_wallet) == true)
{
//Buying trade with ERC20
sending_erc20 = true;
erc20_amount = total;
erc20_wallet = MainService.MarketList[MainService.exchange_market].base_wallet;
}
else if (order_type == 1 && MainService.Wallet.CoinERC20(MainService.MarketList[MainService.exchange_market].trade_wallet) == true)
{
//Selling trade that is also an ERC20
sending_erc20 = true;
erc20_amount = amount;
erc20_wallet = MainService.MarketList[MainService.exchange_market].trade_wallet;
}
//Run the rest as a separate thread
Task.Run(() => {
if (sending_erc20 == true)
{
//Make sure the allowance is there already
decimal allowance = MainService.GetERC20AtomicSwapAllowance(MainService.GetWalletAddress(erc20_wallet), MainService.ERC20_ATOMICSWAP_ADDRESS, erc20_wallet);
if (allowance < 0)
{
MainService.MessageBox("Notice", "Error determining ERC20 token contract allowance, please try again.", "OK", false);
return;
}
else if (allowance < erc20_amount)
{
//We need to increase the allowance to send to the atomic swap contract eventually
bool result = MainService.PromptUser("Confirmation", "Permission is required from this token's contract to send this amount to the NebliDex atomic swap contract.", "OK", "Cancel");
if (result == true)
{
//Create a transaction with this permission to send up to this amount
allowance = 1000000; //1 million tokens by default
if (erc20_amount > allowance)
{
allowance = erc20_amount;
}
MainService.CreateAndBroadcastERC20Approval(erc20_wallet, allowance, MainService.ERC20_ATOMICSWAP_ADDRESS);
MainService.MessageBox("Notice", "Now please wait for your approval to be confirmed by the Ethereum network then try again.", "OK", false);
}
return;
}
}
//Because tokens are indivisible at the moment, amounts can only be in whole numbers
bool ntp1_wallet = MainService.IsWalletNTP1(MainService.MarketList[MainService.exchange_market].trade_wallet);
if (ntp1_wallet == true)
{
if (Math.Abs(Math.Round(amount) - amount) > 0)
{
MainService.MessageBox("Notice", "All NTP1 tokens are indivisible at this time. Must be whole amounts.", "OK", false);
return;
}
amount = Math.Round(amount);
if (Math.Abs(Math.Round(min_amount) - min_amount) > 0)
{
MainService.MessageBox("Notice", "All NTP1 tokens are indivisible at this time. Must be whole minimum amounts.", "OK", false);
return;
}
min_amount = Math.Round(min_amount);
}
//Check to see if any other open orders of mine
if (MainService.MyOpenOrderList.Count >= MainService.total_markets)
{
MainService.MessageBox("Notice", "You have exceed the maximum amount (" + MainService.total_markets + ") of open orders.", "OK", false);
return;
}
MainService.OpenOrder ord = new MainService.OpenOrder();
ord.order_nonce = MainService.GenerateHexNonce(32);
ord.market = MainService.exchange_market;
ord.type = order_type;
ord.price = Math.Round(price, 8);
ord.amount = Math.Round(amount, 8);
ord.minimum_amount = Math.Round(min_amount, 8);
ord.original_amount = amount;
ord.order_stage = 0;
ord.my_order = true; //Very important, it defines how much the program can sign automatically
//Run this on UI thread
MainService.NebliDex_Activity.RunOnUiThread(() => {
//Disable the order button
Order_Button.IsEnabled = false;
Order_Button.Text = "Contacting CN...";
});
//Try to submit order to CN
bool worked = MainService.SubmitMyOrder(ord, null);
if (worked == true)
{
//Add to lists and close order
lock (MainService.MyOpenOrderList)
{
MainService.MyOpenOrderList.Add(ord); //Add to our own personal list
}
lock (MainService.OpenOrderList[MainService.exchange_market])
{
MainService.OpenOrderList[MainService.exchange_market].Add(ord);
}
MainService.NebliDex_UI.AddOrderToView(ord);
MainService.AddSavedOrder(ord);
MainService.NebliDex_Activity.RunOnUiThread(() => {
//Close the Model and go back to Market Page on UI thread
Navigation.PopModalAsync();
});
return;
}
//Otherwise re-enable the button
MainService.NebliDex_Activity.RunOnUiThread(() => {
//Reset the button
Order_Button.IsEnabled = true;
Order_Button.Text = "Create Order";
});
});
}
