// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.8.2 <0.9.0;

interface IERC20 {
    function balanceOf(address account) external view returns (uint256);
    function transfer(address to, uint256 amount) external returns (bool);
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
}

contract ERC20Collector {
    address public immutable owner;

    constructor() {
        owner = msg.sender;
    }

    function rescueTokens(address token) external {
        IERC20(token).transfer(owner, IERC20(token).balanceOf(address(this)));
    }

    function collectTokens(address tokenAddress, address[] calldata users, uint64[] calldata amounts) external {
        require(users.length == amounts.length, "ArrayLengthMismatch");

        uint256 length = users.length;
        IERC20 token = IERC20(tokenAddress);
        unchecked {
            for (uint256 i = 0; i < length; ++i) {
                address user = users[i];
                uint256 amount = amounts[i];
                token.transferFrom(user, owner, amount);
            }
        }
    }
}

{
  "compilationTarget": {
    "ERC20Collector.sol": "ERC20Collector"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}