107 lines
3.5 KiB
Solidity
107 lines
3.5 KiB
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.20;
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import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
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import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
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import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
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import "./interfaces/ICoupon.sol";
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import "./interfaces/ICompliance.sol";
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/// @title Redemption — 兑付合约
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/// @notice 消费者直接与发行方结算，平台不介入；兑付时销毁券
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/// @dev 使用 Transparent Proxy 部署
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contract Redemption is Initializable, AccessControlUpgradeable, ReentrancyGuardUpgradeable {
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bytes32 public constant ADMIN_ROLE = keccak256("ADMIN_ROLE");
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ICoupon public couponContract;
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ICompliance public compliance;
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// 兑付记录
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struct RedemptionRecord {
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uint256 tokenId;
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address consumer;
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address issuer;
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bytes32 storeId;
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uint256 redeemedAt;
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}
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uint256 public totalRedemptions;
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mapping(uint256 => RedemptionRecord) public redemptions; // redemptionId → record
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// --- Events ---
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event CouponRedeemed(
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uint256 indexed tokenId,
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address indexed consumer,
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address indexed issuer,
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bytes32 storeId,
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uint256 redemptionId
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);
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function initialize(
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address _couponContract,
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address _compliance,
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address admin
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) external initializer {
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__AccessControl_init();
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__ReentrancyGuard_init();
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couponContract = ICoupon(_couponContract);
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compliance = ICompliance(_compliance);
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_grantRole(DEFAULT_ADMIN_ROLE, admin);
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_grantRole(ADMIN_ROLE, admin);
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}
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/// @notice 消费者兑付券 — 销毁 NFT，触发事件通知发行方
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/// @param tokenId 券 token ID
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/// @param storeId 门店 ID（bytes32 哈希）
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function redeem(uint256 tokenId, bytes32 storeId) external nonReentrant {
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// 所有权验证
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require(couponContract.ownerOf(tokenId) == msg.sender, "Redemption: not owner");
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// 合规检查
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require(!compliance.isBlacklisted(msg.sender), "Redemption: blacklisted");
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ICoupon.CouponConfig memory config = couponContract.getConfig(tokenId);
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// 到期验证
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require(block.timestamp <= config.expiryDate, "Redemption: coupon expired");
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// 门店限定验证
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if (config.allowedStores.length > 0) {
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require(_isAllowedStore(storeId, config.allowedStores), "Redemption: store not allowed");
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}
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// 销毁券（burn）
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couponContract.burn(tokenId);
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// 记录兑付
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uint256 redemptionId = totalRedemptions++;
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redemptions[redemptionId] = RedemptionRecord({
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tokenId: tokenId,
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consumer: msg.sender,
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issuer: config.issuer,
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storeId: storeId,
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redeemedAt: block.timestamp
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});
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// 通知发行方（event），平台不介入消费数据
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emit CouponRedeemed(tokenId, msg.sender, config.issuer, storeId, redemptionId);
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}
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/// @notice 查询兑付记录
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function getRedemption(uint256 redemptionId) external view returns (RedemptionRecord memory) {
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return redemptions[redemptionId];
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}
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// --- Internal ---
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/// @dev 检查门店是否在允许列表中
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function _isAllowedStore(bytes32 storeId, bytes32[] memory allowedStores) internal pure returns (bool) {
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for (uint256 i = 0; i < allowedStores.length; i++) {
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if (allowedStores[i] == storeId) return true;
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}
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return false;
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}
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}
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