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Add ePendle and Pendle address, scaffold UniswapV2 oracle factory
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| // SPDX-License-Identifier: GPL-3.0 | ||
| pragma solidity 0.7.6; | ||
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| import {UniswapV2Relayer} from '@contracts/oracles/UniswapV2Relayer.sol'; | ||
| import {FactoryChild} from '@contracts/factories/FactoryChild.sol'; | ||
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| contract UniswapV2RelayerChild is UniswapV2Relayer, FactoryChild { | ||
| // --- Init --- | ||
| constructor( | ||
| address _algebraV2Factory, | ||
| address _baseToken, | ||
| address _quoteToken, | ||
| uint32 _quotePeriod | ||
| ) UniswapV2Relayer(_algebraV2Factory, _baseToken, _quoteToken, _quotePeriod) {} | ||
| } |
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| // SPDX-License-Identifier: GPL-3.0 | ||
| pragma solidity 0.7.6; | ||
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| import {IBaseOracle} from '@interfaces/oracles/IBaseOracle.sol'; | ||
| import {UniswapV2RelayerChild} from '@contracts/factories/UniswapV2RelayerChild.sol'; | ||
| import {Authorizable} from '@contracts/utils/Authorizable.sol'; | ||
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| contract UniswapV2RelayerFactory is Authorizable { | ||
| uint256 public relayerId; | ||
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| // --- Events --- | ||
| event NewUniswapV2Relayer(address indexed _relayer, address _baseToken, address _quoteToken, uint32 _quotePeriod); | ||
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| // --- Data --- | ||
| mapping(uint256 => address) public relayerById; | ||
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| // --- Init --- | ||
| constructor() Authorizable(msg.sender) {} | ||
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| // --- Methods --- | ||
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| function deployUniswapV2Relayer( | ||
| address _algebraV2Factory, | ||
| address _baseToken, | ||
| address _quoteToken, | ||
| uint32 _quotePeriod | ||
| ) external isAuthorized returns (IBaseOracle _relayer) { | ||
| _relayer = IBaseOracle(address(new UniswapV2RelayerChild(_algebraV2Factory, _baseToken, _quoteToken, _quotePeriod))); | ||
| relayerId++; | ||
| relayerById[relayerId] = address(_relayer); | ||
| emit NewUniswapV2Relayer(address(_relayer), _baseToken, _quoteToken, _quotePeriod); | ||
| } | ||
| } |
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| // SPDX-License-Identifier: GPL-3.0 | ||
| pragma solidity 0.7.6; | ||
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| import {IERC20Metadata} from '@algebra-periphery/interfaces/IERC20Metadata.sol'; | ||
| import {IAlgebraFactory} from '@algebra-core/interfaces/IAlgebraFactory.sol'; | ||
| import {IAlgebraPool} from '@algebra-core/interfaces/IAlgebraPool.sol'; | ||
| import {IDataStorageOperator} from '@algebra-core/interfaces/IDataStorageOperator.sol'; | ||
| import {DataStorageLibrary} from '@algebra-periphery/libraries/DataStorageLibrary.sol'; | ||
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| contract UniswapV2Relayer { | ||
| int256 public immutable MULTIPLIER; | ||
| uint32 public immutable QUOTE_PERIOD; | ||
| uint128 public immutable BASE_AMOUNT; | ||
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| // --- Registry --- | ||
| address public algebraPool; | ||
| address public baseToken; | ||
| address public quoteToken; | ||
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| // --- Data --- | ||
| string public symbol; | ||
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| constructor(address _algebraV3Factory, address _baseToken, address _quoteToken, uint32 _quotePeriod) { | ||
| algebraPool = IAlgebraFactory(_algebraV3Factory).poolByPair(_baseToken, _quoteToken); | ||
| require(algebraPool != address(0)); | ||
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| address _token0 = IAlgebraPool(algebraPool).token0(); | ||
| address _token1 = IAlgebraPool(algebraPool).token1(); | ||
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| // The factory validates that both token0 and token1 are desired baseToken and quoteTokens | ||
| if (_token0 == _baseToken) { | ||
| baseToken = _token0; | ||
| quoteToken = _token1; | ||
| } else { | ||
| baseToken = _token1; | ||
| quoteToken = _token0; | ||
| } | ||
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| BASE_AMOUNT = uint128(10 ** IERC20Metadata(_baseToken).decimals()); | ||
| MULTIPLIER = int256(18) - int256(uint256(IERC20Metadata(_quoteToken).decimals())); | ||
| QUOTE_PERIOD = _quotePeriod; | ||
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| symbol = string(abi.encodePacked(IERC20Metadata(_baseToken).symbol(), ' / ', IERC20Metadata(_quoteToken).symbol())); | ||
| } | ||
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| function getResultWithValidity() external view returns (uint256 _result, bool _validity) { | ||
| // TODO: add catch if the pool doesn't have enough history - return false | ||
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| // Consult the query with a TWAP period of QUOTE_PERIOD | ||
| int24 _arithmeticMeanTick = DataStorageLibrary.consult(algebraPool, QUOTE_PERIOD); | ||
| // Calculate the quote amount | ||
| uint256 _quoteAmount = DataStorageLibrary.getQuoteAtTick({ | ||
| tick: _arithmeticMeanTick, | ||
| baseAmount: BASE_AMOUNT, | ||
| baseToken: baseToken, | ||
| quoteToken: quoteToken | ||
| }); | ||
| // Process the quote result to 18 decimal quote | ||
| _result = _parseResult(_quoteAmount); | ||
| _validity = true; | ||
| } | ||
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| function read() external view returns (uint256 _result) { | ||
| // This call may revert with 'OLD!' if the pool doesn't have enough cardinality or initialized history | ||
| int24 _arithmeticMeanTick = DataStorageLibrary.consult(algebraPool, QUOTE_PERIOD); | ||
| uint256 _quoteAmount = DataStorageLibrary.getQuoteAtTick({ | ||
| tick: _arithmeticMeanTick, | ||
| baseAmount: BASE_AMOUNT, | ||
| baseToken: baseToken, | ||
| quoteToken: quoteToken | ||
| }); | ||
| _result = _parseResult(_quoteAmount); | ||
| } | ||
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| function _parseResult(uint256 _quoteResult) internal view returns (uint256 _result) { | ||
| if (MULTIPLIER == 0) { | ||
| return _quoteResult; | ||
| } else if (MULTIPLIER > 0) { | ||
| return _quoteResult * (10 ** uint256(MULTIPLIER)); | ||
| } else { | ||
| return _quoteResult / (10 ** _abs(MULTIPLIER)); | ||
| } | ||
| } | ||
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| // @notice Return the absolute value of a signed integer as an unsigned integer | ||
| function _abs(int256 x) internal pure returns (uint256) { | ||
| x >= 0 ? x : -x; | ||
| return uint256(x); | ||
| } | ||
| } |
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