commit
This commit is contained in:
443
contracts/vault/YTAssetFactory.sol
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443
contracts/vault/YTAssetFactory.sol
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.0;
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import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
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import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
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import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
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import "@openzeppelin/contracts/proxy/ERC1967/ERC1967Proxy.sol";
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import "./YTAssetVault.sol";
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/**
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* @title YTAssetFactory
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* @notice 用于批量创建和管理YT资产金库合约的工厂
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* @dev UUPS可升级合约
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*/
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contract YTAssetFactory is Initializable, UUPSUpgradeable, OwnableUpgradeable {
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error InvalidAddress();
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error VaultNotExists();
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error InvalidHardCap();
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/// @notice YTAssetVault实现合约地址
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address public vaultImplementation;
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/// @notice 所有创建的vault地址列表
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address[] public allVaults;
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/// @notice vault地址 => 是否存在
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mapping(address => bool) public isVault;
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/// @notice 默认硬顶值（0表示无限制）
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uint256 public defaultHardCap;
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event VaultCreated(
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address indexed vault,
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address indexed manager,
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string name,
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string symbol,
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uint256 hardCap,
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uint256 index
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);
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event VaultImplementationUpdated(address indexed newImplementation);
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event DefaultHardCapSet(uint256 newDefaultHardCap);
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event HardCapSet(address indexed vault, uint256 newHardCap);
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event PricesUpdated(address indexed vault, uint256 wusdPrice, uint256 ytPrice);
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event NextRedemptionTimeSet(address indexed vault, uint256 redemptionTime);
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/**
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* @notice 初始化工厂
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* @param _vaultImplementation YTAssetVault实现合约地址
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* @param _defaultHardCap 默认硬顶值
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*/
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function initialize(
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address _vaultImplementation,
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uint256 _defaultHardCap
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) external initializer {
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if (_vaultImplementation == address(0)) revert InvalidAddress();
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__Ownable_init(msg.sender);
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__UUPSUpgradeable_init();
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vaultImplementation = _vaultImplementation;
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defaultHardCap = _defaultHardCap;
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}
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/**
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* @notice 授权升级（仅owner可调用）
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* @param newImplementation 新实现合约地址
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*/
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function _authorizeUpgrade(address newImplementation) internal override onlyOwner {}
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/**
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* @notice 更新YTAssetVault实现合约
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* @param _newImplementation 新的实现合约地址
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*/
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function setVaultImplementation(address _newImplementation) external onlyOwner {
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if (_newImplementation == address(0)) revert InvalidAddress();
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vaultImplementation = _newImplementation;
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emit VaultImplementationUpdated(_newImplementation);
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}
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/**
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* @notice 设置默认硬顶
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* @param _defaultHardCap 新的默认硬顶值
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*/
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function setDefaultHardCap(uint256 _defaultHardCap) external onlyOwner {
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defaultHardCap = _defaultHardCap;
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emit DefaultHardCapSet(_defaultHardCap);
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}
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/**
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* @notice 创建新的YTAssetVault
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* @param _name YT代币名称
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* @param _symbol YT代币符号
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* @param _manager 管理员地址
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* @param _hardCap 硬顶限制（0表示使用默认值）
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* @param _wusd WUSD代币地址（传0使用默认地址）
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* @param _redemptionTime 赎回时间（Unix时间戳）
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* @param _initialWusdPrice 初始WUSD价格（精度1e30，传0则使用默认值1.0）
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* @param _initialYtPrice 初始YT价格（精度1e30，传0则使用默认值1.0）
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* @return vault 新创建的vault地址
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*/
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function createVault(
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string memory _name,
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string memory _symbol,
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address _manager,
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uint256 _hardCap,
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address _wusd,
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uint256 _redemptionTime,
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uint256 _initialWusdPrice,
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uint256 _initialYtPrice
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) external onlyOwner returns (address vault) {
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if (_manager == address(0)) revert InvalidAddress();
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// 如果传入0，使用默认硬顶
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uint256 actualHardCap = _hardCap == 0 ? defaultHardCap : _hardCap;
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// 编码初始化数据
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bytes memory initData = abi.encodeWithSelector(
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YTAssetVault.initialize.selector,
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_name,
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_symbol,
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_manager,
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actualHardCap,
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_wusd,
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_redemptionTime,
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_initialWusdPrice,
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_initialYtPrice
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);
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// 部署代理合约
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vault = address(new ERC1967Proxy(vaultImplementation, initData));
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// 记录vault信息
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allVaults.push(vault);
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isVault[vault] = true;
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emit VaultCreated(
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vault,
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_manager,
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_name,
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_symbol,
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actualHardCap,
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allVaults.length - 1
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);
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}
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/**
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* @notice 批量创建vault
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* @param _names YT代币名称数组
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* @param _symbols YT代币符号数组
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* @param _managers 管理员地址数组
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* @param _hardCaps 硬顶数组
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* @param _wusd WUSD代币地址（传0使用默认地址）
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* @param _redemptionTimes 赎回时间数组（Unix时间戳）
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* @param _initialWusdPrices 初始WUSD价格数组（精度1e30）
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* @param _initialYtPrices 初始YT价格数组（精度1e30）
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* @return vaults 创建的vault地址数组
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*/
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function createVaultBatch(
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string[] memory _names,
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string[] memory _symbols,
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address[] memory _managers,
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uint256[] memory _hardCaps,
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address _wusd,
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uint256[] memory _redemptionTimes,
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uint256[] memory _initialWusdPrices,
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uint256[] memory _initialYtPrices
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) external returns (address[] memory vaults) {
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require(
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_names.length == _symbols.length &&
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_names.length == _managers.length &&
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_names.length == _hardCaps.length &&
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_names.length == _redemptionTimes.length &&
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_names.length == _initialWusdPrices.length &&
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_names.length == _initialYtPrices.length,
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"Length mismatch"
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);
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vaults = new address[](_names.length);
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for (uint256 i = 0; i < _names.length; i++) {
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vaults[i] = this.createVault(
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_names[i],
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_symbols[i],
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_managers[i],
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_hardCaps[i],
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_wusd,
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_redemptionTimes[i],
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_initialWusdPrices[i],
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_initialYtPrices[i]
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);
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}
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}
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/**
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* @notice 设置指定vault的硬顶
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* @param _vault vault地址
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* @param _hardCap 新的硬顶值
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*/
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function setHardCap(address _vault, uint256 _hardCap) external onlyOwner {
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if (!isVault[_vault]) revert VaultNotExists();
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YTAssetVault(_vault).setHardCap(_hardCap);
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emit HardCapSet(_vault, _hardCap);
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}
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/**
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* @notice 批量设置硬顶
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* @param _vaults vault地址数组
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* @param _hardCaps 硬顶值数组
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*/
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function setHardCapBatch(
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address[] memory _vaults,
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uint256[] memory _hardCaps
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) external onlyOwner {
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require(_vaults.length == _hardCaps.length, "Length mismatch");
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for (uint256 i = 0; i < _vaults.length; i++) {
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if (!isVault[_vaults[i]]) revert VaultNotExists();
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YTAssetVault(_vaults[i]).setHardCap(_hardCaps[i]);
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emit HardCapSet(_vaults[i], _hardCaps[i]);
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}
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}
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/**
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* @notice 设置vault的管理员
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* @param _vault vault地址
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* @param _manager 新管理员地址
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*/
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function setVaultManager(address _vault, address _manager) external onlyOwner {
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if (!isVault[_vault]) revert VaultNotExists();
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if (_manager == address(0)) revert InvalidAddress();
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YTAssetVault(_vault).setManager(_manager);
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}
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/**
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* @notice 设置vault的下一个赎回时间
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* @param _vault vault地址
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* @param _nextRedemptionTime 赎回时间（Unix时间戳）
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*/
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function setVaultNextRedemptionTime(address _vault, uint256 _nextRedemptionTime) external onlyOwner {
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if (!isVault[_vault]) revert VaultNotExists();
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YTAssetVault(_vault).setNextRedemptionTime(_nextRedemptionTime);
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emit NextRedemptionTimeSet(_vault, _nextRedemptionTime);
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}
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/**
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* @notice 批量设置赎回时间
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* @param _vaults vault地址数组
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* @param _nextRedemptionTime 统一的赎回时间
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*/
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function setVaultNextRedemptionTimeBatch(
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address[] memory _vaults,
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uint256 _nextRedemptionTime
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) external onlyOwner {
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for (uint256 i = 0; i < _vaults.length; i++) {
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if (!isVault[_vaults[i]]) revert VaultNotExists();
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YTAssetVault(_vaults[i]).setNextRedemptionTime(_nextRedemptionTime);
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emit NextRedemptionTimeSet(_vaults[i], _nextRedemptionTime);
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}
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}
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/**
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* @notice 暂停vault（紧急情况）
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* @param _vault vault地址
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*/
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function pauseVault(address _vault) external onlyOwner {
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if (!isVault[_vault]) revert VaultNotExists();
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YTAssetVault(_vault).pause();
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}
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/**
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* @notice 恢复vault
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* @param _vault vault地址
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*/
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function unpauseVault(address _vault) external onlyOwner {
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if (!isVault[_vault]) revert VaultNotExists();
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YTAssetVault(_vault).unpause();
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}
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/**
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* @notice 批量暂停vaults
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* @param _vaults vault地址数组
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*/
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function pauseVaultBatch(address[] memory _vaults) external onlyOwner {
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for (uint256 i = 0; i < _vaults.length; i++) {
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if (!isVault[_vaults[i]]) revert VaultNotExists();
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YTAssetVault(_vaults[i]).pause();
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}
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}
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/**
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* @notice 批量恢复vaults
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* @param _vaults vault地址数组
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*/
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function unpauseVaultBatch(address[] memory _vaults) external onlyOwner {
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for (uint256 i = 0; i < _vaults.length; i++) {
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if (!isVault[_vaults[i]]) revert VaultNotExists();
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YTAssetVault(_vaults[i]).unpause();
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}
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}
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/**
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* @notice 更新vault价格
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* @param _vault vault地址
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* @param _wusdPrice WUSD价格（精度1e30）
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* @param _ytPrice YT价格（精度1e30）
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*/
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function updateVaultPrices(
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address _vault,
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uint256 _wusdPrice,
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uint256 _ytPrice
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) external onlyOwner {
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if (!isVault[_vault]) revert VaultNotExists();
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YTAssetVault(_vault).updatePrices(_wusdPrice, _ytPrice);
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emit PricesUpdated(_vault, _wusdPrice, _ytPrice);
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}
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/**
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* @notice 批量更新价格
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* @param _vaults vault地址数组
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* @param _wusdPrices WUSD价格数组（精度1e30）
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* @param _ytPrices YT价格数组（精度1e30）
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*/
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function updateVaultPricesBatch(
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address[] memory _vaults,
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uint256[] memory _wusdPrices,
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uint256[] memory _ytPrices
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) external onlyOwner {
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require(
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_vaults.length == _wusdPrices.length &&
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_vaults.length == _ytPrices.length,
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"Length mismatch"
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);
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for (uint256 i = 0; i < _vaults.length; i++) {
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if (!isVault[_vaults[i]]) revert VaultNotExists();
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YTAssetVault(_vaults[i]).updatePrices(_wusdPrices[i], _ytPrices[i]);
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emit PricesUpdated(_vaults[i], _wusdPrices[i], _ytPrices[i]);
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}
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}
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/**
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* @notice 升级指定vault
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* @param _vault vault地址
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* @param _newImplementation 新实现地址
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*/
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function upgradeVault(address _vault, address _newImplementation) external onlyOwner {
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if (!isVault[_vault]) revert VaultNotExists();
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if (_newImplementation == address(0)) revert InvalidAddress();
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YTAssetVault(_vault).upgradeToAndCall(_newImplementation, "");
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}
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/**
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* @notice 批量升级vault
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* @param _vaults vault地址数组
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* @param _newImplementation 新实现地址
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*/
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function upgradeVaultBatch(
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address[] memory _vaults,
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address _newImplementation
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) external onlyOwner {
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if (_newImplementation == address(0)) revert InvalidAddress();
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for (uint256 i = 0; i < _vaults.length; i++) {
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if (!isVault[_vaults[i]]) revert VaultNotExists();
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YTAssetVault(_vaults[i]).upgradeToAndCall(_newImplementation, "");
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}
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}
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/**
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* @notice 获取所有vault数量
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*/
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function getVaultCount() external view returns (uint256) {
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return allVaults.length;
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}
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/**
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* @notice 获取指定范围的vault地址
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* @param _start 起始索引
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* @param _end 结束索引（不包含）
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*/
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function getVaults(uint256 _start, uint256 _end)
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external
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view
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returns (address[] memory vaults)
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{
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require(_start < _end && _end <= allVaults.length, "Invalid range");
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vaults = new address[](_end - _start);
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for (uint256 i = _start; i < _end; i++) {
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vaults[i - _start] = allVaults[i];
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}
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}
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/**
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* @notice 获取所有vault地址
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*/
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function getAllVaults() external view returns (address[] memory) {
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return allVaults;
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}
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/**
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* @notice 获取vault详细信息
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* @param _vault vault地址
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*/
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function getVaultInfo(address _vault) external view returns (
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bool exists,
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uint256 totalAssets,
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uint256 idleAssets,
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uint256 managedAssets,
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uint256 totalSupply,
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uint256 hardCap,
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uint256 wusdPrice,
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uint256 ytPrice,
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uint256 nextRedemptionTime
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) {
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exists = isVault[_vault];
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if (!exists) return (false, 0, 0, 0, 0, 0, 0, 0, 0);
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(
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totalAssets,
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idleAssets,
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managedAssets,
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totalSupply,
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hardCap,
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wusdPrice,
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ytPrice,
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nextRedemptionTime
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) = YTAssetVault(_vault).getVaultInfo();
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}
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/**
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* @dev 预留存储空间，用于未来升级时添加新的状态变量
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* 50个slot = 50 * 32 bytes = 1600 bytes
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*/
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uint256[50] private __gap;
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}
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375
contracts/vault/YTAssetVault.sol
Normal file
375
contracts/vault/YTAssetVault.sol
Normal file
@@ -0,0 +1,375 @@
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.0;
|
||||
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import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
|
||||
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
|
||||
import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
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||||
import "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol";
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import "@openzeppelin/contracts-upgradeable/utils/PausableUpgradeable.sol";
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import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
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import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
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||||
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||||
/**
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||||
* @title YTAssetVault
|
||||
* @notice 基于价格的资产金库，用户根据WUSD和YT代币价格进行兑换
|
||||
* @dev UUPS可升级合约，YT是份额代币
|
||||
*/
|
||||
contract YTAssetVault is
|
||||
Initializable,
|
||||
ERC20Upgradeable,
|
||||
UUPSUpgradeable,
|
||||
ReentrancyGuardUpgradeable,
|
||||
PausableUpgradeable
|
||||
{
|
||||
using SafeERC20 for IERC20;
|
||||
|
||||
error Forbidden();
|
||||
error HardCapExceeded();
|
||||
error InvalidAmount();
|
||||
error InvalidHardCap();
|
||||
error InvalidPrice();
|
||||
error InsufficientWUSD();
|
||||
error InsufficientYTA();
|
||||
error StillInLockPeriod();
|
||||
|
||||
/// @notice 工厂合约地址
|
||||
address public factory;
|
||||
|
||||
/// @notice 管理员地址
|
||||
address public manager;
|
||||
|
||||
/// @notice YT代币硬顶（最大可铸造的YT数量）
|
||||
uint256 public hardCap;
|
||||
|
||||
/// @notice 已提取用于管理的WUSD数量
|
||||
uint256 public managedAssets;
|
||||
|
||||
/// @notice WUSD代币地址
|
||||
address public wusdAddress;
|
||||
|
||||
/// @notice WUSD价格（精度1e30）
|
||||
uint256 public wusdPrice;
|
||||
|
||||
/// @notice YT价格（精度1e30）
|
||||
uint256 public ytPrice;
|
||||
|
||||
/// @notice 价格精度
|
||||
uint256 public constant PRICE_PRECISION = 1e30;
|
||||
|
||||
/// @notice 下一个赎回开放时间（所有用户统一）
|
||||
uint256 public nextRedemptionTime;
|
||||
|
||||
event HardCapSet(uint256 newHardCap);
|
||||
event ManagerSet(address indexed newManager);
|
||||
event AssetsWithdrawn(address indexed to, uint256 amount);
|
||||
event AssetsDeposited(uint256 amount);
|
||||
event PriceUpdated(uint256 wusdPrice, uint256 ytPrice, uint256 timestamp);
|
||||
event Buy(address indexed user, uint256 wusdAmount, uint256 ytAmount);
|
||||
event Sell(address indexed user, uint256 ytAmount, uint256 wusdAmount);
|
||||
event NextRedemptionTimeSet(uint256 newRedemptionTime);
|
||||
|
||||
modifier onlyFactory() {
|
||||
if (msg.sender != factory) revert Forbidden();
|
||||
_;
|
||||
}
|
||||
|
||||
modifier onlyManager() {
|
||||
if (msg.sender != manager) revert Forbidden();
|
||||
_;
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 初始化金库
|
||||
* @param _name YT代币名称
|
||||
* @param _symbol YT代币符号
|
||||
* @param _manager 管理员地址
|
||||
* @param _hardCap 硬顶限制
|
||||
* @param _wusd WUSD代币地址（可选，传0则使用默认地址）
|
||||
* @param _redemptionTime 赎回时间（Unix时间戳）
|
||||
* @param _initialWusdPrice 初始WUSD价格（精度1e30，传0则使用默认值1.0）
|
||||
* @param _initialYtPrice 初始YT价格（精度1e30，传0则使用默认值1.0）
|
||||
*
|
||||
* @dev 价格精度为1e30
|
||||
*/
|
||||
function initialize(
|
||||
string memory _name,
|
||||
string memory _symbol,
|
||||
address _manager,
|
||||
uint256 _hardCap,
|
||||
address _wusd,
|
||||
uint256 _redemptionTime,
|
||||
uint256 _initialWusdPrice,
|
||||
uint256 _initialYtPrice
|
||||
) external initializer {
|
||||
wusdAddress = _wusd == address(0)
|
||||
? 0x7Cd017ca5ddb86861FA983a34b5F495C6F898c41
|
||||
: _wusd;
|
||||
|
||||
__ERC20_init(_name, _symbol);
|
||||
__UUPSUpgradeable_init();
|
||||
__ReentrancyGuard_init();
|
||||
__Pausable_init();
|
||||
|
||||
factory = msg.sender;
|
||||
manager = _manager;
|
||||
hardCap = _hardCap;
|
||||
|
||||
// 使用传入的初始价格，如果为0则使用默认值1.0
|
||||
wusdPrice = _initialWusdPrice == 0 ? PRICE_PRECISION : _initialWusdPrice;
|
||||
ytPrice = _initialYtPrice == 0 ? PRICE_PRECISION : _initialYtPrice;
|
||||
|
||||
// 设置赎回时间
|
||||
nextRedemptionTime = _redemptionTime;
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 授权升级（仅factory可调用）
|
||||
* @param newImplementation 新实现合约地址
|
||||
*/
|
||||
function _authorizeUpgrade(address newImplementation) internal override onlyFactory {}
|
||||
|
||||
/**
|
||||
* @notice 设置硬顶
|
||||
* @param _hardCap 新的硬顶值
|
||||
*/
|
||||
function setHardCap(uint256 _hardCap) external onlyFactory {
|
||||
if (_hardCap < totalSupply()) revert InvalidHardCap();
|
||||
hardCap = _hardCap;
|
||||
emit HardCapSet(_hardCap);
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 设置管理员
|
||||
* @param _manager 新管理员地址
|
||||
*/
|
||||
function setManager(address _manager) external onlyFactory {
|
||||
manager = _manager;
|
||||
emit ManagerSet(_manager);
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 暂停合约（仅factory可调用）
|
||||
* @dev 暂停后，所有资金流动操作将被禁止
|
||||
*/
|
||||
function pause() external onlyFactory {
|
||||
_pause();
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 恢复合约（仅factory可调用）
|
||||
*/
|
||||
function unpause() external onlyFactory {
|
||||
_unpause();
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 设置下一个赎回开放时间（仅factory可调用）
|
||||
* @param _nextRedemptionTime 下一个赎回时间（Unix时间戳）
|
||||
* @dev 所有用户统一在此时间后才能赎回，类似基金的赎回日
|
||||
*/
|
||||
function setNextRedemptionTime(uint256 _nextRedemptionTime) external onlyFactory {
|
||||
nextRedemptionTime = _nextRedemptionTime;
|
||||
emit NextRedemptionTimeSet(_nextRedemptionTime);
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 更新价格（仅manager可调用）
|
||||
* @param _wusdPrice WUSD价格（精度1e30）
|
||||
* @param _ytPrice YT价格（精度1e30）
|
||||
*/
|
||||
function updatePrices(uint256 _wusdPrice, uint256 _ytPrice) external onlyFactory {
|
||||
if (_wusdPrice == 0 || _ytPrice == 0) revert InvalidPrice();
|
||||
|
||||
wusdPrice = _wusdPrice;
|
||||
ytPrice = _ytPrice;
|
||||
|
||||
emit PriceUpdated(_wusdPrice, _ytPrice, block.timestamp);
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 用WUSD购买YT
|
||||
* @param _wusdAmount 支付的WUSD数量
|
||||
* @return ytAmount 实际获得的YT数量
|
||||
* @dev 首次购买时，YT价格 = WUSD价格（1:1兑换）
|
||||
*/
|
||||
function depositYT(uint256 _wusdAmount)
|
||||
external
|
||||
nonReentrant
|
||||
whenNotPaused
|
||||
returns (uint256 ytAmount)
|
||||
{
|
||||
if (_wusdAmount == 0) revert InvalidAmount();
|
||||
|
||||
// 计算可以购买的YT数量
|
||||
ytAmount = (_wusdAmount * wusdPrice) / ytPrice;
|
||||
|
||||
// 检查硬顶
|
||||
if (hardCap > 0 && totalSupply() + ytAmount > hardCap) {
|
||||
revert HardCapExceeded();
|
||||
}
|
||||
|
||||
// 转入WUSD
|
||||
IERC20(wusdAddress).safeTransferFrom(msg.sender, address(this), _wusdAmount);
|
||||
|
||||
// 铸造YT
|
||||
_mint(msg.sender, ytAmount);
|
||||
|
||||
emit Buy(msg.sender, _wusdAmount, ytAmount);
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 卖出YT换取WUSD（需要等到统一赎回时间）
|
||||
* @param _ytAmount 卖出的YT数量
|
||||
* @return wusdAmount 实际获得的WUSD数量
|
||||
*/
|
||||
function withdrawYT(uint256 _ytAmount)
|
||||
external
|
||||
nonReentrant
|
||||
whenNotPaused
|
||||
returns (uint256 wusdAmount)
|
||||
{
|
||||
if (_ytAmount == 0) revert InvalidAmount();
|
||||
if (balanceOf(msg.sender) < _ytAmount) revert InsufficientYTA();
|
||||
|
||||
// 检查是否到达统一赎回时间
|
||||
if (block.timestamp < nextRedemptionTime) {
|
||||
revert StillInLockPeriod();
|
||||
}
|
||||
|
||||
// 计算可以换取的WUSD数量
|
||||
wusdAmount = (_ytAmount * ytPrice) / wusdPrice;
|
||||
|
||||
// 检查合约是否有足够的WUSD
|
||||
uint256 availableWUSD = IERC20(wusdAddress).balanceOf(address(this));
|
||||
if (wusdAmount > availableWUSD) revert InsufficientWUSD();
|
||||
|
||||
// 销毁YT
|
||||
_burn(msg.sender, _ytAmount);
|
||||
|
||||
// 转出WUSD
|
||||
IERC20(wusdAddress).safeTransfer(msg.sender, wusdAmount);
|
||||
|
||||
emit Sell(msg.sender, _ytAmount, wusdAmount);
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 查询距离下次赎回开放还需等待多久
|
||||
* @return remainingTime 剩余时间（秒），0表示可以赎回
|
||||
*/
|
||||
function getTimeUntilNextRedemption() external view returns (uint256 remainingTime) {
|
||||
if (block.timestamp >= nextRedemptionTime) {
|
||||
return 0;
|
||||
}
|
||||
return nextRedemptionTime - block.timestamp;
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 检查当前是否可以赎回
|
||||
* @return 是否可以赎回
|
||||
*/
|
||||
function canRedeemNow() external view returns (bool) {
|
||||
return block.timestamp >= nextRedemptionTime;
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 提取WUSD用于外部投资
|
||||
* @param _to 接收地址
|
||||
* @param _amount 提取数量
|
||||
*/
|
||||
function withdrawForManagement(address _to, uint256 _amount) external onlyManager nonReentrant whenNotPaused {
|
||||
if (_amount == 0) revert InvalidAmount();
|
||||
|
||||
uint256 availableAssets = IERC20(wusdAddress).balanceOf(address(this));
|
||||
if (_amount > availableAssets) revert InvalidAmount();
|
||||
|
||||
managedAssets += _amount;
|
||||
IERC20(wusdAddress).safeTransfer(_to, _amount);
|
||||
|
||||
emit AssetsWithdrawn(_to, _amount);
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 将管理的资产归还到金库（可以归还更多，产生收益）
|
||||
* @param _amount 归还数量
|
||||
*/
|
||||
function depositManagedAssets(uint256 _amount) external onlyManager nonReentrant whenNotPaused {
|
||||
if (_amount == 0) revert InvalidAmount();
|
||||
|
||||
// 先更新状态（遵循CEI模式）
|
||||
if (_amount >= managedAssets) {
|
||||
// 归还金额 >= 已管理资产，managedAssets归零，多余部分是收益
|
||||
managedAssets = 0;
|
||||
} else {
|
||||
// 归还金额 < 已管理资产，部分归还
|
||||
managedAssets -= _amount;
|
||||
}
|
||||
|
||||
// 从manager转入WUSD到合约
|
||||
IERC20(wusdAddress).safeTransferFrom(msg.sender, address(this), _amount);
|
||||
|
||||
emit AssetsDeposited(_amount);
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 获取总资产（包含被管理的资产）
|
||||
* @return 总资产 = 合约余额 + 被管理的资产
|
||||
*/
|
||||
function totalAssets() public view returns (uint256) {
|
||||
return IERC20(wusdAddress).balanceOf(address(this)) + managedAssets;
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 获取空闲资产（可用于提取的资产）
|
||||
* @return 合约中实际持有的WUSD数量
|
||||
*/
|
||||
function idleAssets() public view returns (uint256) {
|
||||
return IERC20(wusdAddress).balanceOf(address(this));
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 预览购买：计算支付指定WUSD可获得的YT数量
|
||||
* @param _wusdAmount 支付的WUSD数量
|
||||
* @return ytAmount 可获得的YT数量
|
||||
*/
|
||||
function previewBuy(uint256 _wusdAmount) external view returns (uint256 ytAmount) {
|
||||
ytAmount = (_wusdAmount * wusdPrice) / ytPrice;
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 预览卖出：计算卖出指定YT可获得的WUSD数量
|
||||
* @param _ytAmount 卖出的YT数量
|
||||
* @return wusdAmount 可获得的WUSD数量
|
||||
*/
|
||||
function previewSell(uint256 _ytAmount) external view returns (uint256 wusdAmount) {
|
||||
wusdAmount = (_ytAmount * ytPrice) / wusdPrice;
|
||||
}
|
||||
|
||||
/**
|
||||
* @notice 获取金库信息
|
||||
*/
|
||||
function getVaultInfo() external view returns (
|
||||
uint256 _totalAssets,
|
||||
uint256 _idleAssets,
|
||||
uint256 _managedAssets,
|
||||
uint256 _totalSupply,
|
||||
uint256 _hardCap,
|
||||
uint256 _wusdPrice,
|
||||
uint256 _ytPrice,
|
||||
uint256 _nextRedemptionTime
|
||||
) {
|
||||
_totalAssets = totalAssets();
|
||||
_idleAssets = idleAssets();
|
||||
_managedAssets = managedAssets;
|
||||
_totalSupply = totalSupply();
|
||||
_hardCap = hardCap;
|
||||
_wusdPrice = wusdPrice;
|
||||
_ytPrice = ytPrice;
|
||||
_nextRedemptionTime = nextRedemptionTime;
|
||||
}
|
||||
|
||||
/**
|
||||
* @dev 预留存储空间，用于未来升级时添加新的状态变量
|
||||
* 50个slot = 50 * 32 bytes = 1600 bytes
|
||||
*/
|
||||
uint256[50] private __gap;
|
||||
}
|
||||
Reference in New Issue
Block a user