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Call Auction

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This commit is contained in:
mingda
2020-12-08 18:13:45 +08:00
parent 7c0ee89823
commit 09ff15e85b
3 changed files with 57 additions and 36 deletions
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46
contracts/CallAuction/impl/CAFunding.sol
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@@ -21,7 +21,12 @@ contract CAFunding is CAStorage {
// ============ BID ============
function bid(address to) external phaseBid preventReentrant {
modifier isBidderAllow(address bidder) {
require(_BIDDER_PERMISSION_.isAllowed(bidder), "BIDDER_NOT_ALLOWED");
_;
}
function bid(address to) external phaseBid preventReentrant isBidderAllow(to) {
uint256 input = _getQuoteInput();
_QUOTE_SHARES_[to] = _QUOTE_SHARES_[to].add(input);
_TOTAL_QUOTE_SHARES_ = _TOTAL_QUOTE_SHARES_.add(input);
@@ -30,18 +35,11 @@ contract CAFunding is CAStorage {
// ============ CALM ============
function cancel(
address to,
uint256 amount,
bytes memory data
) external phaseBidOrCalm preventReentrant {
function cancel(address to, uint256 amount) external phaseBidOrCalm preventReentrant {
require(_QUOTE_SHARES_[msg.sender] >= amount, "SHARES_NOT_ENOUGH");
_QUOTE_SHARES_[msg.sender] = _QUOTE_SHARES_[msg.sender].sub(amount);
_transferQuoteOut(to, amount);
_sync();
if (data.length > 0) {
IDODOCallee(to).CACancelCall(msg.sender, amount, data);
}
}
// ============ SETTLEMENT ============
@@ -52,16 +50,20 @@ contract CAFunding is CAStorage {
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
uint256 mtFee;
(_TOTAL_SOLD_BASE_, mtFee) = getBaseSold();
// 1. maintainer quote
_transferQuoteOut(_MAINTAINER_, mtFee);
// 2. remaining quote
_transferQuoteOut(_QUOTE_PAY_BACK_, quoteBalance.sub(mtFee));
// 3. base token pay back
// 1. sold base remaining in the contract
_TOTAL_SOLD_BASE_ = getBaseSold();
// 2. left base send out
_transferBaseOut(_BASE_PAY_BACK_, baseBalance.sub(_TOTAL_SOLD_BASE_));
// 4. left base in contract
// 3. used quote token
uint256 usedQuote = _QUOTE_CAP_ <= quoteBalance ? _QUOTE_CAP_ : quoteBalance;
_transferQuoteOut(_QUOTE_PAY_BACK_, usedQuote);
// 4. unused quote token
_TOTAL_UNUSED_QUOTE_ = quoteBalance.sub(usedQuote);
// 5. external call
if (_BASE_PAY_BACK_CALL_DATA_.length > 0) {
(bool success, ) = _BASE_PAY_BACK_.call(_BASE_PAY_BACK_CALL_DATA_);
@@ -76,18 +78,20 @@ contract CAFunding is CAStorage {
// ============ Pricing ============
function getAvgPrice() public view returns (uint256 avgPrice) {
(uint256 baseSold, ) = getBaseSold();
uint256 baseSold = getBaseSold();
avgPrice = DecimalMath.divFloor(_QUOTE_TOKEN_.balanceOf(address(this)), baseSold);
}
function getBaseByUser(address user) public view returns (uint256 baseAmount) {
(uint256 baseSold, ) = getBaseSold();
uint256 baseSold = getBaseSold();
baseAmount = baseSold.mul(_QUOTE_SHARES_[user]).div(_TOTAL_QUOTE_SHARES_);
}
function getBaseSold() public view returns (uint256 baseSold, uint256 mtFee) {
function getBaseSold() public view returns (uint256 baseSold) {
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
mtFee = DecimalMath.mulFloor(quoteBalance, _QUOTE_MAINTAINER_FEE_RATE_);
if (quoteBalance > _QUOTE_CAP_) {
quoteBalance = _QUOTE_CAP_;
}
(baseSold, ) = PMMPricing.sellQuoteToken(_getPMMState(), quoteBalance);
}