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// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

contract DataPayments {
    address public immutable PAYMENT_TOKEN_ADDRESS;

    struct DataPayment {
        address rewardsAddress;
        uint256 amount;
        bytes32 quoteHash;
    }

    event DataPaymentMade(
        address indexed rewardsAddress,
        uint256 indexed amount,
        bytes32 indexed quoteHash
    );

    constructor(address _tokenAddress) {
        require(_tokenAddress != address(0), "Token address cannot be zero address");

        PAYMENT_TOKEN_ADDRESS = _tokenAddress;
    }

    function submitDataPayments(DataPayment[] calldata dataPayments) external {
        for (uint256 i = 0; i < dataPayments.length; i++) {
            DataPayment calldata dataPayment = dataPayments[i];

            // Send tokens to the reward address
            _sendTokens(msg.sender, dataPayment.rewardsAddress, dataPayment.amount);

            // Emit events that can be listened to and will be stored in the transaction
            emit DataPaymentMade(dataPayment.rewardsAddress, dataPayment.amount, dataPayment.quoteHash);
        }
    }

    function _sendTokens(address from, address to, uint256 amount) internal {
        require(IERC20(PAYMENT_TOKEN_ADDRESS).balanceOf(from) >= amount, "Wallet does not have enough tokens");

        if (from != address(this)) {
            require(IERC20(PAYMENT_TOKEN_ADDRESS).allowance(from, address(this)) >= amount, "Contract is not allowed to spend enough tokens");
        }

        IERC20(PAYMENT_TOKEN_ADDRESS).transferFrom(from, to, amount);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

[{"inputs":[{"internalType":"address","name":"_tokenAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"rewardsAddress","type":"address"},{"indexed":true,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":true,"internalType":"bytes32","name":"quoteHash","type":"bytes32"}],"name":"DataPaymentMade","type":"event"},{"inputs":[],"name":"PAYMENT_TOKEN_ADDRESS","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"rewardsAddress","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes32","name":"quoteHash","type":"bytes32"}],"internalType":"struct DataPayments.DataPayment[]","name":"dataPayments","type":"tuple[]"}],"name":"submitDataPayments","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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0000000000000000000000004bc1ace0e66170375462cb4e6af42ad4d5ec689c

-----Decoded View---------------
Arg [0] : _tokenAddress (address): 0x4bc1aCE0E66170375462cB4E6Af42Ad4D5EC689C

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000004bc1ace0e66170375462cb4e6af42ad4d5ec689c