.gitattribute

*.sol linguist-language=Solidity

SeedVenture.sol

contract SeedDex {
  mapping (address => mapping (address => uint)) private tokens;
  mapping (address => mapping (bytes32 => bool)) private orders;
  mapping (address => mapping (bytes32 => uint)) private orderFills;
 
 // make an Order
 function order(
          address tokenGet,
          uint amountGet,
          address tokenGive,
          uint amountGive,
          uint expires,
          uint nonce) public {
    require(expires > block.number, "expires must be in the future");
    require(isValidPair(tokenGet, tokenGive), "Not a valid pair");
    require(canBeTransferred(tokenGet, msg.sender, amountGet), "Token quota exceeded");
    bytes32 hash = sha256(abi.encodePacked(this, tokenGet, amountGet, tokenGive, amountGive, expires, nonce));
    orders[msg.sender][hash] = true;
    emit Order(tokenGet, amountGet, tokenGive, amountGive, expires, nonce, msg.sender);
  }

  // Take an order from the book
  function trade(
        address  tokenGet,
        uint     amountGet,
        address  tokenGive,
        uint     amountGive,
        uint     expires,
        uint     nonce,
        address  user,
        uint     amount) public {
    require(block.number <= expires, "Order Expired");

    require(isValidPair(tokenGet, tokenGive), "Not a valid pair");
    require(canBeTransferred(tokenGet, msg.sender, amountGet), "Token quota exceeded");
    bytes32 hash = sha256(abi.encodePacked(this, tokenGet, amountGet, tokenGive, amountGive, expires, nonce));
    require(orders[user][hash], "Order does not exist");
    require(orderFills[user][hash].add(amount) <= amountGet, "Order amount exceeds maximum availability");

    tradeBalances(tokenGet, amountGet, tokenGive, amountGive, user, amount);
    orderFills[user][hash] = orderFills[user][hash].add(amount);
    uint executedAmount = amountGive.mul(amount) / amountGet;
    emit Trade(tokenGet, amountGet, tokenGive, amountGive, expires, nonce, user, amount, executeAmount, msg.sender);
  }

 }