// File: /Users/gavinpacini/Development/gameforth/gameforth-contracts-priv/contracts/tokenPricing/TokenManualConsumer.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.6.12;

import "@openzeppelin/contracts/access/Ownable.sol";

interface GameForthInterface {
    function pushReport(uint256 payload) external;

    function purgeReports() external;
}

/**
 * @title TokenManualConsumer is a contract which is given data by a server
 * @dev This contract is designed to work on multiple networks, including
 * local test networks
 */
contract TokenManualConsumer is Ownable {
    int256 public currentAnswer;
    uint256 public updatedHeight;
    GameForthInterface public gameForth;
    mapping(address => bool) public authorizedRequesters;

    /**
     * @notice Deploy the contract
     * @dev Sets the storage for the specified addresses
     * @param _gameforth The Ampleforth contract to call
     */
    constructor(address _gameforth) public {
        _updateRequestDetails(_gameforth);
    }

    function updateRequestDetails(address _gameforth) external onlyOwner() {
        _updateRequestDetails(_gameforth);
    }

    function _updateRequestDetails(address _gameforth) private {
        require(_gameforth != address(0), "Cannot use zero address");
        gameForth = GameForthInterface(_gameforth);
    }

    /**
     * @notice Calls the Ampleforth contract's pushReport method with the response
     * from the oracle
     * @param _data The answer provided by the oracle, rGME/USD with 9 decimal points
     */
    function fulfillPushReport(int256 _data) external onlyOwner() {
        currentAnswer = _data;
        updatedHeight = block.number;
        GameForthInterface(gameForth).pushReport(uint256(_data));
    }

    /**
     * @notice Calls Ampleforth contract's purge function
     */
    function purgeReports() external onlyOwner() {
        GameForthInterface(gameForth).purgeReports();
    }
}

// File: @openzeppelin/contracts/GSN/Context.sol



// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

// File: @openzeppelin/contracts/access/Ownable.sol



// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../GSN/Context.sol";
/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}