94 lines
2.8 KiB
Solidity
94 lines
2.8 KiB
Solidity
/*
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Copyright 2020 DODO ZOO.
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SPDX-License-Identifier: Apache-2.0
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*/
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pragma solidity 0.6.9;
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pragma experimental ABIEncoderV2;
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import {IFeeRateModel} from "../../lib/FeeRateModel.sol";
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import {IERC20} from "../../intf/IERC20.sol";
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import {DVMTrader} from "./DVMTrader.sol";
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import {DVMFunding} from "./DVMFunding.sol";
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import {DVMVault} from "./DVMVault.sol";
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/**
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* @title DODO VendingMachine
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* @author DODO Breeder
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*
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* @notice DODOVendingMachine initialization
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*/
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contract DVM is DVMTrader, DVMFunding {
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function init(
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address maintainer,
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address baseTokenAddress,
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address quoteTokenAddress,
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uint256 lpFeeRate,
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address mtFeeRateModel,
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uint256 i,
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uint256 k,
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bool isOpenTWAP
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) external {
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require(baseTokenAddress != quoteTokenAddress, "BASE_QUOTE_CAN_NOT_BE_SAME");
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_BASE_TOKEN_ = IERC20(baseTokenAddress);
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_QUOTE_TOKEN_ = IERC20(quoteTokenAddress);
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require(i > 0 && i <= 10**36);
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_I_ = i;
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require(k <= 10**18);
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_K_ = k;
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_LP_FEE_RATE_ = lpFeeRate;
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_MT_FEE_RATE_MODEL_ = IFeeRateModel(mtFeeRateModel);
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_MAINTAINER_ = maintainer;
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_IS_OPEN_TWAP_ = isOpenTWAP;
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if(isOpenTWAP) _BLOCK_TIMESTAMP_LAST_ = uint32(block.timestamp % 2**32);
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string memory connect = "_";
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string memory suffix = "DLP";
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name = string(abi.encodePacked(suffix, connect, addressToShortString(address(this))));
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symbol = "DLP";
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decimals = _BASE_TOKEN_.decimals();
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// ============================== Permit ====================================
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uint256 chainId;
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assembly {
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chainId := chainid()
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}
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DOMAIN_SEPARATOR = keccak256(
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abi.encode(
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// keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
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0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f,
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keccak256(bytes(name)),
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keccak256(bytes("1")),
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chainId,
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address(this)
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)
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);
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// ==========================================================================
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}
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function addressToShortString(address _addr) public pure returns (string memory) {
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bytes32 value = bytes32(uint256(_addr));
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bytes memory alphabet = "0123456789abcdef";
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bytes memory str = new bytes(8);
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for (uint256 i = 0; i < 4; i++) {
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str[i * 2] = alphabet[uint8(value[i + 12] >> 4)];
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str[1 + i * 2] = alphabet[uint8(value[i + 12] & 0x0f)];
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}
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return string(str);
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}
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// ============ Version Control ============
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function version() external pure returns (string memory) {
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return "DVM 1.0.0";
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}
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}
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