mirror of
https://github.com/Instadapp/dsa-connectors.git
synced 2024-07-29 22:37:00 +00:00
846 lines
26 KiB
Solidity
846 lines
26 KiB
Solidity
pragma solidity ^0.6.0;
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interface TokenInterface {
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function approve(address, uint) external;
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function transfer(address, uint) external;
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function deposit() external payable;
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function withdraw(uint) external;
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function balanceOf(address) external view returns (uint);
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}
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interface ManagerLike {
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function cdpCan(address, uint, address) external view returns (uint);
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function ilks(uint) external view returns (bytes32);
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function last(address) external view returns (uint);
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function count(address) external view returns (uint);
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function owns(uint) external view returns (address);
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function urns(uint) external view returns (address);
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function vat() external view returns (address);
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function open(bytes32, address) external returns (uint);
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function give(uint, address) external;
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function frob(uint, int, int) external;
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function flux(uint, address, uint) external;
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function move(uint, address, uint) external;
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}
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interface VatLike {
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function can(address, address) external view returns (uint);
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function ilks(bytes32) external view returns (uint, uint, uint, uint, uint);
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function dai(address) external view returns (uint);
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function urns(bytes32, address) external view returns (uint, uint);
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function frob(
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bytes32,
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address,
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address,
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address,
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int,
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int
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) external;
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function hope(address) external;
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function move(address, address, uint) external;
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function gem(bytes32, address) external view returns (uint);
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}
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interface TokenJoinInterface {
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function dec() external returns (uint);
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function gem() external returns (TokenInterface);
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function join(address, uint) external payable;
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function exit(address, uint) external;
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}
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interface DaiJoinInterface {
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function vat() external returns (VatLike);
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function dai() external returns (TokenInterface);
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function join(address, uint) external payable;
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function exit(address, uint) external;
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}
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interface JugLike {
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function drip(bytes32) external returns (uint);
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}
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interface PotLike {
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function pie(address) external view returns (uint);
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function drip() external returns (uint);
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function join(uint) external;
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function exit(uint) external;
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}
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interface MemoryInterface {
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function getUint(uint _id) external returns (uint _num);
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function setUint(uint _id, uint _val) external;
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}
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interface InstaMapping {
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function gemJoinMapping(bytes32) external view returns (address);
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}
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interface EventInterface {
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function emitEvent(uint _connectorType, uint _connectorID, bytes32 _eventCode, bytes calldata _eventData) external;
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}
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interface AccountInterface {
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function isAuth(address _user) external view returns (bool);
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}
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contract DSMath {
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uint256 constant RAY = 10 ** 27;
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uint constant WAD = 10 ** 18;
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function add(uint x, uint y) internal pure returns (uint z) {
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require((z = x + y) >= x, "math-not-safe");
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}
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function sub(uint x, uint y) internal pure returns (uint z) {
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require((z = x - y) <= x, "sub-overflow");
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}
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function mul(uint x, uint y) internal pure returns (uint z) {
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require(y == 0 || (z = x * y) / y == x, "math-not-safe");
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}
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function wmul(uint x, uint y) internal pure returns (uint z) {
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z = add(mul(x, y), WAD / 2) / WAD;
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}
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function wdiv(uint x, uint y) internal pure returns (uint z) {
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z = add(mul(x, WAD), y / 2) / y;
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}
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function rdiv(uint x, uint y) internal pure returns (uint z) {
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z = add(mul(x, RAY), y / 2) / y;
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}
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function rmul(uint x, uint y) internal pure returns (uint z) {
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z = add(mul(x, y), RAY / 2) / RAY;
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}
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function toInt(uint x) internal pure returns (int y) {
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y = int(x);
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require(y >= 0, "int-overflow");
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}
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function toRad(uint wad) internal pure returns (uint rad) {
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rad = mul(wad, 10 ** 27);
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}
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function convertTo18(uint _dec, uint256 _amt) internal pure returns (uint256 amt) {
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amt = mul(_amt, 10 ** (18 - _dec));
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}
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function convert18ToDec(uint _dec, uint256 _amt) internal pure returns (uint256 amt) {
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amt = (_amt / 10 ** (18 - _dec));
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}
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}
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contract Helpers is DSMath {
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/**
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* @dev Return ETH Address.
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*/
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function getAddressETH() internal pure returns (address) {
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return 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
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}
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/**
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* @dev Return WETH Address.
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*/
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function getAddressWETH() internal pure returns (address) {
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return 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
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}
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/**
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* @dev Return InstAaMemory Address.
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*/
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function getMemoryAddr() internal pure returns (address) {
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return 0x8a5419CfC711B2343c17a6ABf4B2bAFaBb06957F;
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}
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/**
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* @dev Return InstaEvent Address.
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*/
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function getEventAddr() internal pure returns (address) {
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return 0x2af7ea6Cb911035f3eb1ED895Cb6692C39ecbA97;
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}
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/**
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* @dev Get Uint value from InstaMemory Contract.
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*/
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function getUint(uint getId, uint val) internal returns (uint returnVal) {
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returnVal = getId == 0 ? val : MemoryInterface(getMemoryAddr()).getUint(getId);
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}
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/**
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* @dev Set Uint value in InstaMemory Contract.
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*/
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function setUint(uint setId, uint val) internal {
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if (setId != 0) MemoryInterface(getMemoryAddr()).setUint(setId, val);
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}
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/**
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* @dev Connector Details
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*/
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function connectorID() public pure returns(uint _type, uint _id) {
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(_type, _id) = (1, 61);
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}
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}
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contract MakerMCDAddresses is Helpers {
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/**
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* @dev Return Maker MCD Manager Address.
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*/
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function getMcdManager() internal pure returns (address) {
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return 0x5ef30b9986345249bc32d8928B7ee64DE9435E39;
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}
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/**
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* @dev Return Maker MCD DAI Address.
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*/
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function getMcdDai() internal pure returns (address) {
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return 0x6B175474E89094C44Da98b954EedeAC495271d0F;
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}
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/**
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* @dev Return Maker MCD DAI_Join Address.
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*/
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function getMcdDaiJoin() internal pure returns (address) {
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return 0x9759A6Ac90977b93B58547b4A71c78317f391A28;
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}
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/**
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* @dev Return Maker MCD Jug Address.
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*/
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function getMcdJug() internal pure returns (address) {
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return 0x19c0976f590D67707E62397C87829d896Dc0f1F1;
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}
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/**
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* @dev Return Maker MCD Pot Address.
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*/
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function getMcdPot() internal pure returns (address) {
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return 0x197E90f9FAD81970bA7976f33CbD77088E5D7cf7;
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}
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}
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contract MakerHelpers is MakerMCDAddresses {
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/**
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* @dev Return InstaMapping Address.
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*/
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function getMappingAddr() internal pure returns (address) {
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return 0xe81F70Cc7C0D46e12d70efc60607F16bbD617E88;
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}
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/**
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* @dev Return Close Vault Address.
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*/
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function getGiveAddress() internal pure returns (address) {
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return 0x4dD58550eb15190a5B3DfAE28BB14EeC181fC267;
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}
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/**
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* @dev Get Vault's ilk.
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*/
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function getVaultData(ManagerLike managerContract, uint vault) internal view returns (bytes32 ilk, address urn) {
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ilk = managerContract.ilks(vault);
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urn = managerContract.urns(vault);
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}
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/**
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* @dev Gem Join address is ETH type collateral.
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*/
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function isEth(address tknAddr) internal pure returns (bool) {
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return tknAddr == getAddressWETH() ? true : false;
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}
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/**
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* @dev Get Vault Debt Amount.
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*/
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function _getVaultDebt(
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address vat,
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bytes32 ilk,
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address urn
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) internal view returns (uint wad) {
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(, uint rate,,,) = VatLike(vat).ilks(ilk);
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(, uint art) = VatLike(vat).urns(ilk, urn);
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uint dai = VatLike(vat).dai(urn);
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uint rad = sub(mul(art, rate), dai);
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wad = rad / RAY;
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wad = mul(wad, RAY) < rad ? wad + 1 : wad;
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}
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/**
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* @dev Get Borrow Amount.
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*/
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function _getBorrowAmt(
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address vat,
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address urn,
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bytes32 ilk,
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uint amt
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) internal returns (int dart)
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{
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address jug = getMcdJug();
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uint rate = JugLike(jug).drip(ilk);
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uint dai = VatLike(vat).dai(urn);
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if (dai < mul(amt, RAY)) {
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dart = toInt(sub(mul(amt, RAY), dai) / rate);
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dart = mul(uint(dart), rate) < mul(amt, RAY) ? dart + 1 : dart;
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}
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}
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/**
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* @dev Get Payback Amount.
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*/
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function _getWipeAmt(
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address vat,
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uint amt,
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address urn,
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bytes32 ilk
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) internal view returns (int dart)
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{
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(, uint rate,,,) = VatLike(vat).ilks(ilk);
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(, uint art) = VatLike(vat).urns(ilk, urn);
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dart = toInt(amt / rate);
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dart = uint(dart) <= art ? - dart : - toInt(art);
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}
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/**
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* @dev Convert String to bytes32.
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*/
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function stringToBytes32(string memory str) internal pure returns (bytes32 result) {
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require(bytes(str).length != 0, "string-empty");
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// solium-disable-next-line security/no-inline-assembly
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assembly {
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result := mload(add(str, 32))
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}
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}
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/**
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* @dev Get vault ID. If `vault` is 0, get last opened vault.
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*/
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function getVault(ManagerLike managerContract, uint vault) internal view returns (uint _vault) {
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if (vault == 0) {
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require(managerContract.count(address(this)) > 0, "no-vault-opened");
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_vault = managerContract.last(address(this));
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} else {
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_vault = vault;
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}
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}
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}
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contract BasicResolver is MakerHelpers {
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event LogOpen(uint256 indexed vault, bytes32 indexed ilk);
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event LogClose(uint256 indexed vault, bytes32 indexed ilk);
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event LogTransfer(uint256 indexed vault, bytes32 indexed ilk, address newOwner);
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event LogDeposit(uint256 indexed vault, bytes32 indexed ilk, uint256 tokenAmt, uint256 getId, uint256 setId);
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event LogWithdraw(uint256 indexed vault, bytes32 indexed ilk, uint256 tokenAmt, uint256 getId, uint256 setId);
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event LogBorrow(uint256 indexed vault, bytes32 indexed ilk, uint256 tokenAmt, uint256 getId, uint256 setId);
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event LogPayback(uint256 indexed vault, bytes32 indexed ilk, uint256 tokenAmt, uint256 getId, uint256 setId);
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/**
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* @dev Open Vault
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* @param colType Type of Collateral.(eg: 'ETH-A')
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*/
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function open(string calldata colType) external payable returns (uint vault) {
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bytes32 ilk = stringToBytes32(colType);
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require(InstaMapping(getMappingAddr()).gemJoinMapping(ilk) != address(0), "wrong-col-type");
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vault = ManagerLike(getMcdManager()).open(ilk, address(this));
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emit LogOpen(vault, ilk);
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}
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/**
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* @dev Close Vault
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* @param vault Vault ID to close.
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*/
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function close(uint vault) external payable {
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ManagerLike managerContract = ManagerLike(getMcdManager());
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uint _vault = getVault(managerContract, vault);
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(bytes32 ilk, address urn) = getVaultData(managerContract, _vault);
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(uint ink, uint art) = VatLike(managerContract.vat()).urns(ilk, urn);
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require(ink == 0 && art == 0, "vault-has-assets");
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require(managerContract.owns(_vault) == address(this), "not-owner");
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managerContract.give(_vault, getGiveAddress());
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emit LogClose(_vault, ilk);
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}
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/**
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* @dev Deposit ETH/ERC20_Token Collateral.
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* @param vault Vault ID.
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* @param amt token amount to deposit.
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* @param getId Get token amount at this ID from `InstaMemory` Contract.
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* @param setId Set token amount at this ID in `InstaMemory` Contract.
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*/
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function deposit(
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uint vault,
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uint amt,
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uint getId,
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uint setId
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) external payable
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{
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ManagerLike managerContract = ManagerLike(getMcdManager());
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uint _amt = getUint(getId, amt);
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uint _vault = getVault(managerContract, vault);
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(bytes32 ilk, address urn) = getVaultData(managerContract, _vault);
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address colAddr = InstaMapping(getMappingAddr()).gemJoinMapping(ilk);
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TokenJoinInterface tokenJoinContract = TokenJoinInterface(colAddr);
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TokenInterface tokenContract = tokenJoinContract.gem();
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if (isEth(address(tokenContract))) {
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_amt = _amt == uint(-1) ? address(this).balance : _amt;
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tokenContract.deposit{value: _amt}();
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} else {
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_amt = _amt == uint(-1) ? tokenContract.balanceOf(address(this)) : _amt;
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}
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tokenContract.approve(address(colAddr), _amt);
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tokenJoinContract.join(address(this), _amt);
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VatLike(managerContract.vat()).frob(
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ilk,
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urn,
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address(this),
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address(this),
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toInt(convertTo18(tokenJoinContract.dec(), _amt)),
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0
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);
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setUint(setId, _amt);
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emit LogDeposit(vault, ilk, _amt, getId, setId);
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}
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/**
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* @dev Withdraw ETH/ERC20_Token Collateral.
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* @param vault Vault ID.
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* @param amt token amount to withdraw.
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* @param getId Get token amount at this ID from `InstaMemory` Contract.
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* @param setId Set token amount at this ID in `InstaMemory` Contract.
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*/
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function withdraw(
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uint vault,
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uint amt,
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uint getId,
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uint setId
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) external payable {
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ManagerLike managerContract = ManagerLike(getMcdManager());
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uint _amt = getUint(getId, amt);
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uint _vault = getVault(managerContract, vault);
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(bytes32 ilk, address urn) = getVaultData(managerContract, _vault);
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address colAddr = InstaMapping(getMappingAddr()).gemJoinMapping(ilk);
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TokenJoinInterface tokenJoinContract = TokenJoinInterface(colAddr);
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uint _amt18;
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if (_amt == uint(-1)) {
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(_amt18,) = VatLike(managerContract.vat()).urns(ilk, urn);
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_amt = convert18ToDec(tokenJoinContract.dec(), _amt18);
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} else {
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_amt18 = convertTo18(tokenJoinContract.dec(), _amt);
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}
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managerContract.frob(
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_vault,
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-toInt(_amt18),
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0
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);
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managerContract.flux(
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_vault,
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address(this),
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_amt18
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);
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TokenInterface tokenContract = tokenJoinContract.gem();
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if (isEth(address(tokenContract))) {
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tokenJoinContract.exit(address(this), _amt);
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tokenContract.withdraw(_amt);
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} else {
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tokenJoinContract.exit(address(this), _amt);
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}
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setUint(setId, _amt);
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emit LogWithdraw(_vault, ilk, _amt, getId, setId);
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}
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/**
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* @dev Borrow DAI.
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* @param vault Vault ID.
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* @param amt token amount to borrow.
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* @param getId Get token amount at this ID from `InstaMemory` Contract.
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* @param setId Set token amount at this ID in `InstaMemory` Contract.
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*/
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function borrow(
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uint vault,
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uint amt,
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uint getId,
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uint setId
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) external payable {
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ManagerLike managerContract = ManagerLike(getMcdManager());
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uint _amt = getUint(getId, amt);
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uint _vault = getVault(managerContract, vault);
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(bytes32 ilk, address urn) = getVaultData(managerContract, _vault);
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address daiJoin = getMcdDaiJoin();
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VatLike vatContract = VatLike(managerContract.vat());
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managerContract.frob(
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_vault,
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0,
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_getBorrowAmt(
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address(vatContract),
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urn,
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ilk,
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_amt
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)
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);
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managerContract.move(
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_vault,
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address(this),
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toRad(_amt)
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);
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if (vatContract.can(address(this), address(daiJoin)) == 0) {
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vatContract.hope(daiJoin);
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}
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DaiJoinInterface(daiJoin).exit(address(this), _amt);
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setUint(setId, _amt);
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emit LogBorrow(vault, ilk, _amt, getId, setId);
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}
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/**
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* @dev Payback borrowed DAI.
|
|
* @param vault Vault ID.
|
|
* @param amt token amount to payback.
|
|
* @param getId Get token amount at this ID from `InstaMemory` Contract.
|
|
* @param setId Set token amount at this ID in `InstaMemory` Contract.
|
|
*/
|
|
function payback(
|
|
uint vault,
|
|
uint amt,
|
|
uint getId,
|
|
uint setId
|
|
) external payable {
|
|
ManagerLike managerContract = ManagerLike(getMcdManager());
|
|
uint _amt = getUint(getId, amt);
|
|
uint _vault = getVault(managerContract, vault);
|
|
(bytes32 ilk, address urn) = getVaultData(managerContract, _vault);
|
|
|
|
address vat = managerContract.vat();
|
|
|
|
uint _maxDebt = _getVaultDebt(vat, ilk, urn);
|
|
|
|
_amt = _amt == uint(-1) ? _maxDebt : _amt;
|
|
|
|
require(_maxDebt >= _amt, "paying-excess-debt");
|
|
|
|
DaiJoinInterface daiJoinContract = DaiJoinInterface(getMcdDaiJoin());
|
|
daiJoinContract.dai().approve(getMcdDaiJoin(), _amt);
|
|
daiJoinContract.join(urn, _amt);
|
|
|
|
managerContract.frob(
|
|
_vault,
|
|
0,
|
|
_getWipeAmt(
|
|
vat,
|
|
VatLike(vat).dai(urn),
|
|
urn,
|
|
ilk
|
|
)
|
|
);
|
|
|
|
setUint(setId, _amt);
|
|
|
|
emit LogPayback(_vault, ilk, _amt, getId, setId);
|
|
}
|
|
}
|
|
|
|
|
|
contract BasicExtraResolver is BasicResolver {
|
|
event LogWithdrawLiquidated(uint256 indexed vault, bytes32 indexed ilk, uint256 tokenAmt, uint256 getId, uint256 setId);
|
|
event LogExitDai(uint256 indexed vault, bytes32 indexed ilk, uint256 tokenAmt, uint256 getId, uint256 setId);
|
|
|
|
/**
|
|
* @dev Withdraw leftover ETH/ERC20_Token after Liquidation.
|
|
* @param vault Vault ID.
|
|
* @param amt token amount to Withdraw.
|
|
* @param getId Get token amount at this ID from `InstaMemory` Contract.
|
|
* @param setId Set token amount at this ID in `InstaMemory` Contract.
|
|
*/
|
|
function withdrawLiquidated(
|
|
uint vault,
|
|
uint amt,
|
|
uint getId,
|
|
uint setId
|
|
)
|
|
external payable {
|
|
ManagerLike managerContract = ManagerLike(getMcdManager());
|
|
|
|
uint _amt = getUint(getId, amt);
|
|
(bytes32 ilk, address urn) = getVaultData(managerContract, vault);
|
|
|
|
address colAddr = InstaMapping(getMappingAddr()).gemJoinMapping(ilk);
|
|
TokenJoinInterface tokenJoinContract = TokenJoinInterface(colAddr);
|
|
|
|
uint _amt18;
|
|
if (_amt == uint(-1)) {
|
|
_amt18 = VatLike(managerContract.vat()).gem(ilk, urn);
|
|
_amt = convert18ToDec(tokenJoinContract.dec(), _amt18);
|
|
} else {
|
|
_amt18 = convertTo18(tokenJoinContract.dec(), _amt);
|
|
}
|
|
|
|
managerContract.flux(
|
|
vault,
|
|
address(this),
|
|
_amt18
|
|
);
|
|
|
|
TokenInterface tokenContract = tokenJoinContract.gem();
|
|
tokenJoinContract.exit(address(this), _amt);
|
|
if (isEth(address(tokenContract))) {
|
|
tokenContract.withdraw(_amt);
|
|
}
|
|
|
|
setUint(setId, _amt);
|
|
|
|
emit LogWithdrawLiquidated(vault, ilk, _amt, getId, setId);
|
|
}
|
|
|
|
struct MakerData {
|
|
uint _vault;
|
|
address colAddr;
|
|
address daiJoin;
|
|
TokenJoinInterface tokenJoinContract;
|
|
VatLike vatContract;
|
|
TokenInterface tokenContract;
|
|
}
|
|
/**
|
|
* @dev Deposit ETH/ERC20_Token Collateral and Borrow DAI.
|
|
* @param vault Vault ID.
|
|
* @param depositAmt token deposit amount to Withdraw.
|
|
* @param borrowAmt token borrow amount to Withdraw.
|
|
* @param getIdDeposit Get deposit token amount at this ID from `InstaMemory` Contract.
|
|
* @param getIdBorrow Get borrow token amount at this ID from `InstaMemory` Contract.
|
|
* @param setIdDeposit Set deposit token amount at this ID in `InstaMemory` Contract.
|
|
* @param setIdBorrow Set borrow token amount at this ID in `InstaMemory` Contract.
|
|
*/
|
|
function depositAndBorrow(
|
|
uint vault,
|
|
uint depositAmt,
|
|
uint borrowAmt,
|
|
uint getIdDeposit,
|
|
uint getIdBorrow,
|
|
uint setIdDeposit,
|
|
uint setIdBorrow
|
|
) external payable
|
|
{
|
|
ManagerLike managerContract = ManagerLike(getMcdManager());
|
|
MakerData memory makerData;
|
|
uint _amtDeposit = getUint(getIdDeposit, depositAmt);
|
|
uint _amtBorrow = getUint(getIdBorrow, borrowAmt);
|
|
|
|
makerData._vault = getVault(managerContract, vault);
|
|
(bytes32 ilk, address urn) = getVaultData(managerContract, makerData._vault);
|
|
|
|
makerData.colAddr = InstaMapping(getMappingAddr()).gemJoinMapping(ilk);
|
|
makerData.tokenJoinContract = TokenJoinInterface(makerData.colAddr);
|
|
makerData.vatContract = VatLike(managerContract.vat());
|
|
makerData.daiJoin = getMcdDaiJoin();
|
|
|
|
makerData.tokenContract = makerData.tokenJoinContract.gem();
|
|
|
|
if (isEth(address(makerData.tokenContract))) {
|
|
_amtDeposit = _amtDeposit == uint(-1) ? address(this).balance : _amtDeposit;
|
|
makerData.tokenContract.deposit{value: _amtDeposit}();
|
|
} else {
|
|
_amtDeposit = _amtDeposit == uint(-1) ? makerData.tokenContract.balanceOf(address(this)) : _amtDeposit;
|
|
}
|
|
|
|
makerData.tokenContract.approve(address(makerData.colAddr), _amtDeposit);
|
|
makerData.tokenJoinContract.join(urn, _amtDeposit);
|
|
|
|
managerContract.frob(
|
|
makerData._vault,
|
|
toInt(convertTo18(makerData.tokenJoinContract.dec(), _amtDeposit)),
|
|
_getBorrowAmt(
|
|
address(makerData.vatContract),
|
|
urn,
|
|
ilk,
|
|
_amtBorrow
|
|
)
|
|
);
|
|
|
|
managerContract.move(
|
|
makerData._vault,
|
|
address(this),
|
|
toRad(_amtBorrow)
|
|
);
|
|
|
|
if (makerData.vatContract.can(address(this), address(makerData.daiJoin)) == 0) {
|
|
makerData.vatContract.hope(makerData.daiJoin);
|
|
}
|
|
|
|
DaiJoinInterface(makerData.daiJoin).exit(address(this), _amtBorrow);
|
|
|
|
setUint(setIdDeposit, _amtDeposit);
|
|
setUint(setIdBorrow, _amtBorrow);
|
|
|
|
emit LogDeposit(makerData._vault, ilk, _amtDeposit, getIdDeposit, setIdDeposit);
|
|
|
|
emit LogBorrow(makerData._vault, ilk, _amtBorrow, getIdBorrow, setIdBorrow);
|
|
}
|
|
|
|
/**
|
|
* @dev Exit DAI from urn.
|
|
* @param vault Vault ID.
|
|
* @param amt token amount to exit.
|
|
* @param getId Get token amount at this ID from `InstaMemory` Contract.
|
|
* @param setId Set token amount at this ID in `InstaMemory` Contract.
|
|
*/
|
|
function exitDai(
|
|
uint vault,
|
|
uint amt,
|
|
uint getId,
|
|
uint setId
|
|
) external payable {
|
|
ManagerLike managerContract = ManagerLike(getMcdManager());
|
|
|
|
uint _amt = getUint(getId, amt);
|
|
uint _vault = getVault(managerContract, vault);
|
|
(bytes32 ilk, address urn) = getVaultData(managerContract, _vault);
|
|
|
|
address daiJoin = getMcdDaiJoin();
|
|
|
|
VatLike vatContract = VatLike(managerContract.vat());
|
|
if(_amt == uint(-1)) {
|
|
_amt = vatContract.dai(urn);
|
|
_amt = _amt / 10 ** 27;
|
|
}
|
|
|
|
managerContract.move(
|
|
_vault,
|
|
address(this),
|
|
toRad(_amt)
|
|
);
|
|
|
|
if (vatContract.can(address(this), address(daiJoin)) == 0) {
|
|
vatContract.hope(daiJoin);
|
|
}
|
|
|
|
DaiJoinInterface(daiJoin).exit(address(this), _amt);
|
|
|
|
setUint(setId, _amt);
|
|
|
|
emit LogExitDai(_vault, ilk, _amt, getId, setId);
|
|
}
|
|
}
|
|
|
|
contract DsrResolver is BasicExtraResolver {
|
|
event LogDepositDai(uint256 tokenAmt, uint256 getId, uint256 setId);
|
|
event LogWithdrawDai(uint256 tokenAmt, uint256 getId, uint256 setId);
|
|
|
|
/**
|
|
* @dev Deposit DAI in DSR.
|
|
* @param amt DAI amount to deposit.
|
|
* @param getId Get token amount at this ID from `InstaMemory` Contract.
|
|
* @param setId Set token amount at this ID in `InstaMemory` Contract.
|
|
*/
|
|
function depositDai(
|
|
uint amt,
|
|
uint getId,
|
|
uint setId
|
|
) external payable {
|
|
uint _amt = getUint(getId, amt);
|
|
address pot = getMcdPot();
|
|
address daiJoin = getMcdDaiJoin();
|
|
DaiJoinInterface daiJoinContract = DaiJoinInterface(daiJoin);
|
|
|
|
_amt = _amt == uint(-1) ?
|
|
daiJoinContract.dai().balanceOf(address(this)) :
|
|
_amt;
|
|
|
|
VatLike vat = daiJoinContract.vat();
|
|
PotLike potContract = PotLike(pot);
|
|
|
|
uint chi = potContract.drip();
|
|
|
|
daiJoinContract.dai().approve(daiJoin, _amt);
|
|
daiJoinContract.join(address(this), _amt);
|
|
if (vat.can(address(this), address(pot)) == 0) {
|
|
vat.hope(pot);
|
|
}
|
|
|
|
potContract.join(mul(_amt, RAY) / chi);
|
|
setUint(setId, _amt);
|
|
|
|
emit LogDepositDai(_amt, getId, setId);
|
|
}
|
|
|
|
/**
|
|
* @dev Withdraw DAI from DSR.
|
|
* @param amt DAI amount to withdraw.
|
|
* @param getId Get token amount at this ID from `InstaMemory` Contract.
|
|
* @param setId Set token amount at this ID in `InstaMemory` Contract.
|
|
*/
|
|
function withdrawDai(
|
|
uint amt,
|
|
uint getId,
|
|
uint setId
|
|
) external payable {
|
|
address daiJoin = getMcdDaiJoin();
|
|
|
|
uint _amt = getUint(getId, amt);
|
|
|
|
DaiJoinInterface daiJoinContract = DaiJoinInterface(daiJoin);
|
|
VatLike vat = daiJoinContract.vat();
|
|
PotLike potContract = PotLike(getMcdPot());
|
|
|
|
uint chi = potContract.drip();
|
|
uint pie;
|
|
if (_amt == uint(-1)) {
|
|
pie = potContract.pie(address(this));
|
|
_amt = mul(chi, pie) / RAY;
|
|
} else {
|
|
pie = mul(_amt, RAY) / chi;
|
|
}
|
|
|
|
potContract.exit(pie);
|
|
|
|
uint bal = vat.dai(address(this));
|
|
if (vat.can(address(this), address(daiJoin)) == 0) {
|
|
vat.hope(daiJoin);
|
|
}
|
|
daiJoinContract.exit(
|
|
address(this),
|
|
bal >= mul(_amt, RAY) ? _amt : bal / RAY
|
|
);
|
|
|
|
setUint(setId, _amt);
|
|
|
|
emit LogWithdrawDai(_amt, getId, setId);
|
|
}
|
|
}
|
|
|
|
contract ConnectMaker is DsrResolver {
|
|
string public constant name = "MakerDao-v1.4";
|
|
} |