[DB] Database Resolver fully compliant to EIP-5559

[pikonha]

Feature Request

Both the DatabaseResolver and the DB Gateway need to handle writing calls according to the EIP-5559.

Describe Preferred Solution

struct domainData {
    string name;
    string version;
    uint64 chainId;
    address verifyingContract;
}   

struct messageData {
    bytes4 functionSelector;
    address sender;
    parameter[] parameters;
    uint256 expirationTimestamp;
}

struct parameter {
    string name;
    string value;
}

function setAddr(bytes32 node, address a) external {
    IWriteDeferral.parameter[] memory params = new IWriteDeferral.parameter[](3);

    params[0].name = "node";
    params[0].value = BytesToString.bytes32ToString(node);

    params[1].name = "coin_type";
    params[1].value = Strings.toString(coinType);

    params[2].name = "address";
    params[2].value = BytesToString.bytesToString(a);

    revert StorageHandledByOffChainDatabase(
        IWriteDeferral.domainData(
            {
                name: WRITE_DEFERRAL_DOMAIN_NAME,
                version: WRITE_DEFERRAL_DOMAIN_VERSION,
                chainId: 1,
                verifyingContract: address(this)
            }
        ),
        _offChainDatabaseUrl,
        IWriteDeferral.messageData(
            {
                functionSelector: msg.sig,
                sender: msg.sender,
                parameters: params,
                expirationTimestamp: block.timestamp + _offChainDatabaseTimeoutDuration
            }
        )
    );
}

Related Code

#88