ILendingStrategy.sol

// Neptune Mutual Protocol (https://neptunemutual.com)
// SPDX-License-Identifier: BUSL-1.1
import "openzeppelin-solidity/contracts/token/ERC20/IERC20.sol";
import "./IMember.sol";

pragma solidity ^0.8.0;

interface ILendingStrategy is IMember {
  struct LendingStrategyInfoType {
    uint256 deposits;
    uint256 withdrawals;
  }

  event LogDeposit(bytes32 indexed name, uint256 counter, uint256 amount, uint256 certificateReceived, uint256 depositTotal, uint256 withdrawalTotal);
  event Deposited(bytes32 indexed key, address indexed onBehalfOf, uint256 stablecoinDeposited, uint256 certificateTokenIssued);
  event LogWithdrawal(bytes32 indexed name, uint256 counter, uint256 stablecoinWithdrawn, uint256 certificateRedeemed, uint256 depositTotal, uint256 withdrawalTotal);
  event Withdrawn(bytes32 indexed key, address indexed sendTo, uint256 stablecoinWithdrawn, uint256 certificateTokenRedeemed);
  event Drained(IERC20 indexed asset, uint256 amount);

  function getKey() external pure returns (bytes32);

  function getWeight() external pure returns (uint256);

  function getDepositAsset() external view returns (IERC20);

  function getDepositCertificate() external view returns (IERC20);

  /**
   * @dev Gets info of this strategy by cover key
   * @param coverKey Enter the cover key
   */
  function getInfo(bytes32 coverKey) external view returns (LendingStrategyInfoType memory info);

  function deposit(bytes32 coverKey, uint256 amount) external returns (uint256 certificateReceived);

  function withdraw(bytes32 coverKey) external returns (uint256 stablecoinWithdrawn);
}