mirror of
https://github.com/Instadapp/dsa-connectors.git
synced 2024-07-29 22:37:00 +00:00
feat: Update function calculations
This commit is contained in:
Shriya Tyagi
parent
ba274cab5b
commit
36e3d9a0a3
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@ -6,6 +6,7 @@ contract Events {
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address indexed token,
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uint256 underlyingAmt,
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uint256 minSharesPerToken,
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uint256 sharesReceieved,
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uint256 getId,
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uint256 setId
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);
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@ -14,6 +15,7 @@ contract Events {
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address indexed token,
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uint256 shareAmt,
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uint256 maxTokenPerShares,
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uint256 underlyingTokenAmount,
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uint256 getId,
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uint256 setId
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);
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@ -22,6 +24,7 @@ contract Events {
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address indexed token,
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uint256 underlyingAmt,
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uint256 maxSharesPerToken,
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uint256 sharedBurned,
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address indexed to,
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uint256 getId,
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uint256 setId
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@ -31,8 +34,9 @@ contract Events {
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address indexed token,
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uint256 shareAmt,
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uint256 minTokenPerShares,
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uint256 underlyingAmtReceieved,
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address to,
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uint256 getId,
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uint256 setId
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);
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}
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}
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@ -17,57 +17,61 @@ abstract contract BasicConnector is Events, DSMath, Basic {
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/**
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* @dev Deposit underlying asset to ERC4626 Vault.
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* @notice Mints vault shares by depositing exactly amount of underlying assets
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* @param token ERC4626 Token address.
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* @param vaultToken ERC4626 Token address.
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* @param underlyingAmt The amount of the underlying asset to deposit. (For max: `uint256(-1)`)
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* @param minSharesPerToken The min share rate of deposit
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* @param minSharesPerToken The min share rate of deposit. Should always be in 18 decimals.
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* @param getId ID to retrieve amt.
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* @param setId ID stores the amount of tokens deposited.
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*/
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function deposit(
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address token,
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address vaultToken,
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uint256 underlyingAmt,
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uint256 minSharesPerToken,
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uint256 getId,
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uint256 setId
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) public returns (string memory _eventName, bytes memory _eventParam) {
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uint256 _underlyingAmt = getUint(getId, underlyingAmt);
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IERC4626 vaultTokenContract = IERC4626(token);
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address _underlyingToken = vaultTokenContract.asset();
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uint8 _vaultShareDecimal = vaultTokenContract.decimals();
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TokenInterface underlyingTokenContract = TokenInterface(
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_underlyingToken
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IERC4626 vaultTokenContract = IERC4626(vaultToken);
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TokenInterface _underlyingTokenContract = TokenInterface(
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vaultTokenContract.asset()
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);
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_underlyingAmt = _underlyingAmt == uint256(-1)
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? underlyingTokenContract.balanceOf(address(this))
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? _underlyingTokenContract.balanceOf(address(this))
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: _underlyingAmt;
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// Making sure that the underlying amount is always in 18 decimals.
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uint256 _underlyingAmt18 = convertTo18(
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_underlyingTokenContract.decimals(),
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_underlyingAmt
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);
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uint256 _minShares = convert18ToDec(
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_vaultShareDecimal,
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wmul(minSharesPerToken, _underlyingAmt)
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vaultTokenContract.decimals(),
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wmul(minSharesPerToken, _underlyingAmt18) // Returns final amount in the floor value of the two token decimals.
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);
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uint256 _initialVaultBal = vaultTokenContract.balanceOf(address(this));
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approve(underlyingTokenContract, token, _underlyingAmt);
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approve(_underlyingTokenContract, vaultToken, _underlyingAmt);
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vaultTokenContract.deposit(_underlyingAmt, address(this));
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uint256 _finalVaultBal = vaultTokenContract.balanceOf(address(this));
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require(
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_minShares <= sub(_finalVaultBal, _initialVaultBal),
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"minShares-exceeds"
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uint256 _sharesReceieved = sub(
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vaultTokenContract.balanceOf(address(this)),
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_initialVaultBal
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);
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setUint(setId, _underlyingAmt);
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require(_minShares <= _sharesReceieved, "Less shares received");
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_eventName = "LogDeposit(address,uint256,uint256,uint256,uint256)";
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setUint(setId, _sharesReceieved);
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_eventName = "LogDeposit(address,uint256,uint256,uint256,uint256,uint256)";
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_eventParam = abi.encode(
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token,
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vaultToken,
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_underlyingAmt,
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minSharesPerToken,
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_sharesReceieved,
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getId,
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setId
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);
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@ -76,51 +80,59 @@ abstract contract BasicConnector is Events, DSMath, Basic {
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/**
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* @dev Mint underlying asset to ERC4626 Vault.
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* @notice Mints vault shares by minting exactly amount of underlying assets
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* @param token ERC4626 Token address.
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* @param vaultToken ERC4626 Token address.
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* @param shareAmt The amount of the share to mint. (For max: `uint256(-1)`)
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* @param maxTokenPerShares The max underyling token rate of mint
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* @param maxTokenPerShares The max underyling token rate of mint. Always in 18 decimals.
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* @param getId ID to retrieve amt.
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* @param setId ID stores the amount of tokens minted.
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*/
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function mint(
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address token,
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address vaultToken,
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uint256 shareAmt,
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uint256 maxTokenPerShares,
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uint256 getId,
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uint256 setId
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) public returns (string memory _eventName, bytes memory _eventParam) {
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uint256 _shareAmt = getUint(getId, shareAmt);
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IERC4626 vaultTokenContract = IERC4626(token);
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address _underlyingToken = vaultTokenContract.asset();
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uint8 _vaultShareDecimal = vaultTokenContract.decimals();
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IERC4626 vaultTokenContract = IERC4626(vaultToken);
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TokenInterface underlyingTokenContract = TokenInterface(
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_underlyingToken
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vaultTokenContract.asset()
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);
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// In vault token decimals
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_shareAmt = _shareAmt == uint256(-1)
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? vaultTokenContract.balanceOf(address(this))
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: _shareAmt;
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// In 18 decimals
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maxTokenPerShares = convertTo18(
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_vaultShareDecimal,
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wmul(maxTokenPerShares, _shareAmt)
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vaultTokenContract.decimals(),
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wmul(maxTokenPerShares, _shareAmt) // Returns final amount in the vault token decimals.
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);
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uint256 _approveUnderlyingTokenAmount = vaultTokenContract.previewMint(
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// In token decimals
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maxTokenPerShares = convert18ToDec(
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underlyingTokenContract.decimals(),
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maxTokenPerShares
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);
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// In token decimals
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uint256 _underlyingTokenAmount = vaultTokenContract.previewMint(
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_shareAmt
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);
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uint256 _initalUnderlyingBal = IERC20(_underlyingToken).balanceOf(
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// In token decimals
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uint256 _initalUnderlyingBal = underlyingTokenContract.balanceOf(
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address(this)
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);
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approve(underlyingTokenContract, token, _approveUnderlyingTokenAmount);
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approve(underlyingTokenContract, vaultToken, _underlyingTokenAmount);
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vaultTokenContract.mint(_shareAmt, address(this));
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uint256 _finalUnderlyingBal = IERC20(_underlyingToken).balanceOf(
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// In token decimals
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uint256 _finalUnderlyingBal = underlyingTokenContract.balanceOf(
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address(this)
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);
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@ -131,11 +143,12 @@ abstract contract BasicConnector is Events, DSMath, Basic {
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setUint(setId, _shareAmt);
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_eventName = "LogMint(address,uint256,uint256,uint256,uint256)";
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_eventName = "LogMint(address,uint256,uint256,uint256,uint256,uint256)";
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_eventParam = abi.encode(
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token,
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vaultToken,
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_shareAmt,
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maxTokenPerShares,
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_underlyingTokenAmount,
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getId,
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setId
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);
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@ -144,16 +157,15 @@ abstract contract BasicConnector is Events, DSMath, Basic {
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/**
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* @dev Withdraw underlying asset from ERC4626 Vault.
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* @notice Withdraw vault shares with exactly amount of underlying assets
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* @param token ERC4626 Token address.
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* @param vaultToken ERC4626 Token address.
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* @param underlyingAmt The amount of the token to withdraw. (For max: `uint256(-1)`)
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* @param maxSharesPerToken The max share rate of withdrawn amount.
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* @param maxSharesPerToken The max share rate of withdrawn amount. Always send in 18 decimals.
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* @param to The address of receiver.
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* @param getId ID to retrieve amt.
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* @param setId ID stores the amount of tokens withdrawn.
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*/
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function withdraw(
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address token,
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address vaultToken,
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uint256 underlyingAmt,
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uint256 maxSharesPerToken,
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address payable to,
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@ -161,41 +173,50 @@ abstract contract BasicConnector is Events, DSMath, Basic {
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uint256 setId
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) public returns (string memory _eventName, bytes memory _eventParam) {
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uint256 _underlyingAmt = getUint(getId, underlyingAmt);
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IERC4626 vaultTokenContract = IERC4626(token);
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address _underlyingToken = vaultTokenContract.asset();
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uint8 _vaultShareDecimal = vaultTokenContract.decimals();
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IERC4626 vaultTokenContract = IERC4626(vaultToken);
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TokenInterface underlyingTokenContract = TokenInterface(
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_underlyingToken
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vaultTokenContract.asset()
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);
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// In token decimals
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_underlyingAmt = _underlyingAmt == uint256(-1)
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? underlyingTokenContract.balanceOf(address(this))
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: _underlyingAmt;
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uint256 _maxShares = convert18ToDec(
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_vaultShareDecimal,
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wmul(maxSharesPerToken, _underlyingAmt)
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// In 18 decimals
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_underlyingAmt = convertTo18(
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underlyingTokenContract.decimals(),
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_underlyingAmt
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);
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// In vault token decimals
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uint256 _maxShares = convert18ToDec(
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vaultTokenContract.decimals(),
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wmul(maxSharesPerToken, _underlyingAmt) // In 18 decimals
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);
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// In vault token decimals
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uint256 _initialVaultBal = vaultTokenContract.balanceOf(to);
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vaultTokenContract.withdraw(_underlyingAmt, to, address(this));
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// In vault token decimals
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uint256 _finalVaultBal = vaultTokenContract.balanceOf(to);
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require(
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_maxShares >= sub(_finalVaultBal, _initialVaultBal),
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"maxShares-exceeds"
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);
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// In vault token decimals
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uint256 _sharesBurned = sub(_initialVaultBal, _finalVaultBal);
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require(_maxShares >= _sharesBurned, "maxShares-exceeds");
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setUint(setId, _underlyingAmt);
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_eventName = "LogWithdraw(address,uint256,uint256,address,uint256,uint256)";
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_eventName = "LogWithdraw(address,uint256,uint256,uint256,address,uint256,uint256)";
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_eventParam = abi.encode(
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token,
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vaultToken,
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_underlyingAmt,
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maxSharesPerToken,
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_sharesBurned,
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to,
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getId,
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setId
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@ -205,16 +226,16 @@ abstract contract BasicConnector is Events, DSMath, Basic {
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/**
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* @dev Redeem underlying asset from ERC4626 Vault.
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* @notice Redeem vault shares with exactly amount of underlying assets
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* @param token ERC4626 Token address.
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* @param vaultToken ERC4626 Token address.
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* @param shareAmt The amount of the token to redeem. (For max: `uint256(-1)`)
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* @param minTokenPerShares The min underlying token rate of withdraw.
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* @param minTokenPerShares The min underlying token rate of withdraw. Always in 18 decimals.
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* @param to The address of receiver.
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* @param getId ID to retrieve amt.
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* @param setId ID stores the amount of tokens redeem.
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*/
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function redeem(
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address token,
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address vaultToken,
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uint256 shareAmt,
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uint256 minTokenPerShares,
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address payable to,
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@ -222,44 +243,53 @@ abstract contract BasicConnector is Events, DSMath, Basic {
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uint256 setId
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) public returns (string memory _eventName, bytes memory _eventParam) {
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uint256 _shareAmt = getUint(getId, shareAmt);
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IERC4626 vaultTokenContract = IERC4626(token);
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address _underlyingToken = vaultTokenContract.asset();
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uint8 _vaultShareDecimal = vaultTokenContract.decimals();
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IERC4626 vaultTokenContract = IERC4626(vaultToken);
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TokenInterface underlyingTokenContract = TokenInterface(
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_underlyingToken
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vaultTokenContract.asset()
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);
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// In vault token decimals
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_shareAmt = _shareAmt == uint256(-1)
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? vaultTokenContract.balanceOf(address(this))
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: _shareAmt;
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// In 18 decimals
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_shareAmt = convertTo18(vaultTokenContract.decimals(), _shareAmt);
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// In token decimals
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uint256 _minUnderlyingAmt = convert18ToDec(
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_vaultShareDecimal,
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wmul(minTokenPerShares, _shareAmt)
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);
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uint256 _initalUnderlyingBal = IERC20(_underlyingToken).balanceOf(
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to
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underlyingTokenContract.decimals(),
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wmul(minTokenPerShares, _shareAmt) // In 18 decimals
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);
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// In token decimals
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uint256 _initalUnderlyingBal = underlyingTokenContract.balanceOf(to);
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vaultTokenContract.redeem(_shareAmt, to, address(this));
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uint256 _finalUnderlyingBal = IERC20(_underlyingToken).balanceOf(
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to
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// In token decimals
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uint256 _finalUnderlyingBal = underlyingTokenContract.balanceOf(to);
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// In token decimals
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uint256 _underlyingAmtReceieved = sub(
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_finalUnderlyingBal,
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_initalUnderlyingBal
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);
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require(
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_minUnderlyingAmt <= sub(_finalUnderlyingBal, _initalUnderlyingBal),
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_minUnderlyingAmt <= _underlyingAmtReceieved,
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"_minUnderlyingAmt-exceeds"
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);
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setUint(setId, _shareAmt);
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_eventName = "LogRedeem(address,uint256,uint256,address,uint256,uint256)";
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_eventName = "LogRedeem(address,uint256,uint256,uint256,address,uint256,uint256)";
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_eventParam = abi.encode(
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token,
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vaultToken,
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_shareAmt,
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minTokenPerShares,
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_underlyingAmtReceieved,
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to,
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getId,
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setId
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@ -269,4 +299,4 @@ abstract contract BasicConnector is Events, DSMath, Basic {
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contract ConnectV2BasicERC4626 is BasicConnector {
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string public constant name = "BASIC-ERC4626-v1.0";
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}
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}
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