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			36 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			36 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Solidity
		
	
	
	
	
	
pragma solidity ^0.7.0;
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import { DSMath } from "../../../common/math.sol";
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import { Basic } from "../../../common/basic.sol";
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import { ComptrollerInterface, BenqiMappingInterface } from "./interface.sol";
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abstract contract Helpers is DSMath, Basic {
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    /**
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     * @dev Benqi Comptroller
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     */
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    ComptrollerInterface internal constant troller = ComptrollerInterface(0x486Af39519B4Dc9a7fCcd318217352830E8AD9b4);
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    /**
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     * @dev Benqi Mapping
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     */
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    BenqiMappingInterface internal constant qiMapping = BenqiMappingInterface(0xe19Fba29ac9BAACc1F584aEcD9C98B4F6fC58ba6);
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    /**
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     * @dev enter benqi market
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     */
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    function enterMarket(address qiToken) internal {
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        address[] memory markets = troller.getAssetsIn(address(this));
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        bool isEntered = false;
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        for (uint i = 0; i < markets.length; i++) {
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            if (markets[i] == qiToken) {
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                isEntered = true;
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            }
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        }
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        if (!isEntered) {
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            address[] memory toEnter = new address[](1);
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            toEnter[0] = qiToken;
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            troller.enterMarkets(toEnter);
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        }
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    }
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}
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