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zeekayandHanzo Dev
a8c164c427
A rebrand renamed third-party names it did not own. @luxfhe-fhe/relayer-sdk and @luxfhe-fhe/oracle-solidity were never published, and @fhevm/solidity ships config/ZamaConfig.sol, not LuxConfig.sol, so nothing installed and no contract compiled. The overrides now say what the lockfile already resolved (@zama-fhe/relayer-sdk ^0.3.0-8, @zama-fhe/oracle-solidity ^0.2.0), and the relayer bundle loads from cdn.zama.org, the host that serves it. Co-authored-by: Hanzo Dev <[email protected]>
54 lines
2.1 KiB
Solidity
54 lines
2.1 KiB
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.24;
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import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
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import {ReentrancyGuard} from "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
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import {IERC7984} from "openzeppelin-confidential-contracts/contracts/interfaces/IERC7984.sol";
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import {FHE, euint16, euint32, euint64, euint128, ebool, externalEuint64} from "@fhevm/solidity/lib/FHE.sol";
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import {ZamaEthereumConfig} from "@fhevm/solidity/config/ZamaConfig.sol";
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/// @title Airdrop
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/// @notice Airdrop contract for confidential tokens
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contract Airdrop is ZamaEthereumConfig, Ownable, ReentrancyGuard {
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// mapping(user => token => claimed)
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mapping(address => mapping(address => bool)) public alreadyClaimed;
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// Fixed airdrop amount per token (encrypted)
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euint64 private immutable AIRDROP_AMOUNT;
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error AlreadyClaimed();
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error InvalidToken();
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modifier onlyNotClaimed(address _token) {
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if (alreadyClaimed[msg.sender][_token]) revert AlreadyClaimed();
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_;
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}
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// ---------------------------------------------------------------------
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// Constructor
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// ---------------------------------------------------------------------
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constructor() Ownable(msg.sender) {
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// Set airdrop amount to 100 tokens (with 6 decimals = 100_000_000)
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AIRDROP_AMOUNT = FHE.asEuint64(100_000_000);
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FHE.allowThis(AIRDROP_AMOUNT);
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}
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function claim(address _token) external nonReentrant onlyNotClaimed(_token) {
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if (_token == address(0)) revert InvalidToken();
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// Mark as claimed for this specific token
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alreadyClaimed[msg.sender][_token] = true;
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// Allow the token contract to access the encrypted amount
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FHE.allow(AIRDROP_AMOUNT, _token);
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// Transfer fixed amount (100 tokens)
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IERC7984(_token).confidentialTransfer(msg.sender, AIRDROP_AMOUNT);
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}
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// View function to check if user has claimed for a specific token
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function hasClaimed(address user, address token) external view returns (bool) {
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return alreadyClaimed[user][token];
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}
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}
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