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Controller.sol
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Controller.sol
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.15;
import {ERC20} from "@solmate/tokens/ERC20.sol";
import "./Vault.sol";
import "./VaultFactory.sol";
import "@chainlink/interfaces/AggregatorV3Interface.sol";
import "@chainlink/interfaces/AggregatorV2V3Interface.sol";
contract Controller {
address public immutable admin;
VaultFactory public immutable vaultFactory;
AggregatorV2V3Interface internal sequencerUptimeFeed;
uint256 private constant GRACE_PERIOD_TIME = 3600;
uint256 public constant VAULTS_LENGTH = 2;
/*//////////////////////////////////////////////////////////////
ERRORS
//////////////////////////////////////////////////////////////*/
error MarketDoesNotExist(uint256 marketId);
error SequencerDown();
error GracePeriodNotOver();
error ZeroAddress();
error NotZeroTVL();
error PriceNotAtStrikePrice(int256 price);
error EpochNotStarted();
error EpochExpired();
error OraclePriceZero();
error RoundIDOutdated();
error TimestampZero();
error AddressNotAdmin();
error EpochNotExist();
error EpochNotExpired();
/*//////////////////////////////////////////////////////////////
EVENTS
//////////////////////////////////////////////////////////////*/
/** @notice Depegs insurance vault when event is emitted
* @param epochMarketID Current market epoch ID
* @param tvl Current TVL
* @param isDisaster Flag if event isDisaster
* @param epoch Current epoch
* @param time Current time
* @param depegPrice Price that triggered depeg
*/
event DepegInsurance(
bytes32 epochMarketID,
VaultTVL tvl,
bool isDisaster,
uint256 epoch,
uint256 time,
int256 depegPrice
);
/* solhint-disable var-name-mixedcase */
struct VaultTVL {
uint256 RISK_claimTVL;
uint256 RISK_finalTVL;
uint256 INSR_claimTVL;
uint256 INSR_finalTVL;
}
/* solhint-enable var-name-mixedcase */
/*//////////////////////////////////////////////////////////////
MODIFIERS
//////////////////////////////////////////////////////////////*/
/** @notice Only admin addresses can call functions that use this modifier
*/
modifier onlyAdmin() {
if(msg.sender != admin)
revert AddressNotAdmin();
_;
}
/** @notice Modifier to ensure market exists, current market epoch time and price are valid
* @param marketIndex Target market index
* @param epochEnd End of epoch set for market
*/
modifier isDisaster(uint256 marketIndex, uint256 epochEnd) {
address[] memory vaultsAddress = vaultFactory.getVaults(marketIndex);
if(
vaultsAddress.length != VAULTS_LENGTH
)
revert MarketDoesNotExist(marketIndex);
address vaultAddress = vaultsAddress[0];
Vault vault = Vault(vaultAddress);
if(vault.idExists(epochEnd) == false)
revert EpochNotExist();
if(
vault.strikePrice() < getLatestPrice(vault.tokenInsured())
)
revert PriceNotAtStrikePrice(getLatestPrice(vault.tokenInsured()));
if(
vault.idEpochBegin(epochEnd) > block.timestamp)
revert EpochNotStarted();
if(
block.timestamp > epochEnd
)
revert EpochExpired();
_;
}
/*//////////////////////////////////////////////////////////////
CONSTRUCTOR
//////////////////////////////////////////////////////////////*/
/** @notice Contract constructor
* @param _factory VaultFactory address
* @param _admin Admin address
* @param _l2Sequencer Arbitrum sequencer address
*/
constructor(
address _factory,
address _admin,
address _l2Sequencer
) {
if(_admin == address(0))
revert ZeroAddress();
if(_factory == address(0))
revert ZeroAddress();
if(_l2Sequencer == address(0))
revert ZeroAddress();
admin = _admin;
vaultFactory = VaultFactory(_factory);
sequencerUptimeFeed = AggregatorV2V3Interface(_l2Sequencer);
}
/*//////////////////////////////////////////////////////////////
FUNCTIONS
//////////////////////////////////////////////////////////////*/
/** @notice Trigger depeg event
* @param marketIndex Target market index
* @param epochEnd End of epoch set for market
*/
function triggerDepeg(uint256 marketIndex, uint256 epochEnd)
public
isDisaster(marketIndex, epochEnd)
{
address[] memory vaultsAddress = vaultFactory.getVaults(marketIndex);
Vault insrVault = Vault(vaultsAddress[0]);
Vault riskVault = Vault(vaultsAddress[1]);
//require this function cannot be called twice in the same epoch for the same vault
if(insrVault.idFinalTVL(epochEnd) != 0)
revert NotZeroTVL();
if(riskVault.idFinalTVL(epochEnd) != 0)
revert NotZeroTVL();
insrVault.endEpoch(epochEnd, true);
riskVault.endEpoch(epochEnd, true);
insrVault.setClaimTVL(epochEnd, riskVault.idFinalTVL(epochEnd));
riskVault.setClaimTVL(epochEnd, insrVault.idFinalTVL(epochEnd));
insrVault.sendTokens(epochEnd, address(riskVault));
riskVault.sendTokens(epochEnd, address(insrVault));
VaultTVL memory tvl = VaultTVL(
riskVault.idClaimTVL(epochEnd),
insrVault.idClaimTVL(epochEnd),
riskVault.idFinalTVL(epochEnd),
insrVault.idFinalTVL(epochEnd)
);
emit DepegInsurance(
keccak256(
abi.encodePacked(
marketIndex,
insrVault.idEpochBegin(epochEnd),
epochEnd
)
),
tvl,
true,
epochEnd,
block.timestamp,
getLatestPrice(insrVault.tokenInsured())
);
}
/** @notice Trigger epoch end without depeg event
* @param marketIndex Target market index
* @param epochEnd End of epoch set for market
*/
function triggerEndEpoch(uint256 marketIndex, uint256 epochEnd) public {
if(
vaultFactory.getVaults(marketIndex).length != VAULTS_LENGTH)
revert MarketDoesNotExist(marketIndex);
if(
block.timestamp < epochEnd)
revert EpochNotExpired();
address[] memory vaultsAddress = vaultFactory.getVaults(marketIndex);
Vault insrVault = Vault(vaultsAddress[0]);
Vault riskVault = Vault(vaultsAddress[1]);
if(insrVault.idExists(epochEnd) == false || riskVault.idExists(epochEnd) == false)
revert EpochNotExist();
//require this function cannot be called twice in the same epoch for the same vault
if(insrVault.idFinalTVL(epochEnd) != 0)
revert NotZeroTVL();
if(riskVault.idFinalTVL(epochEnd) != 0)
revert NotZeroTVL();
insrVault.endEpoch(epochEnd, false);
riskVault.endEpoch(epochEnd, false);
insrVault.setClaimTVL(epochEnd, 0);
riskVault.setClaimTVL(epochEnd, insrVault.idFinalTVL(epochEnd));
insrVault.sendTokens(epochEnd, address(riskVault));
VaultTVL memory tvl = VaultTVL(
riskVault.idClaimTVL(epochEnd),
insrVault.idClaimTVL(epochEnd),
riskVault.idFinalTVL(epochEnd),
insrVault.idFinalTVL(epochEnd)
);
emit DepegInsurance(
keccak256(
abi.encodePacked(
marketIndex,
insrVault.idEpochBegin(epochEnd),
epochEnd
)
),
tvl,
false,
epochEnd,
block.timestamp,
getLatestPrice(insrVault.tokenInsured())
);
}
/*//////////////////////////////////////////////////////////////
ADMIN SETTINGS
//////////////////////////////////////////////////////////////*/
/*//////////////////////////////////////////////////////////////
GETTERS
//////////////////////////////////////////////////////////////*/
/** @notice Lookup token price
* @param _token Target token address
* @return nowPrice Current token price
*/
function getLatestPrice(address _token)
public
view
returns (int256 nowPrice)
{
(
,
/*uint80 roundId*/
int256 answer,
uint256 startedAt, /*uint256 updatedAt*/ /*uint80 answeredInRound*/
,
) = sequencerUptimeFeed.latestRoundData();
// Answer == 0: Sequencer is up
// Answer == 1: Sequencer is down
bool isSequencerUp = answer == 0;
if (!isSequencerUp) {
revert SequencerDown();
}
// Make sure the grace period has passed after the sequencer is back up.
uint256 timeSinceUp = block.timestamp - startedAt;
if (timeSinceUp <= GRACE_PERIOD_TIME) {
revert GracePeriodNotOver();
}
AggregatorV3Interface priceFeed = AggregatorV3Interface(
vaultFactory.tokenToOracle(_token)
);
(
uint80 roundID,
int256 price,
,
uint256 timeStamp,
uint80 answeredInRound
) = priceFeed.latestRoundData();
uint256 decimals = 10**(18-(priceFeed.decimals()));
price = price * int256(decimals);
if(price <= 0)
revert OraclePriceZero();
if(answeredInRound < roundID)
revert RoundIDOutdated();
if(timeStamp == 0)
revert TimestampZero();
return price;
}
/** @notice Lookup target VaultFactory address
* @dev need to find way to express typecasts in NatSpec
*/
function getVaultFactory() external view returns (address) {
return address(vaultFactory);
}
}