uma/packages/core/contracts/data-verification-mechanism/interfaces/RegistryInterface.sol

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity ^0.8.0;

/**
 * @title Interface for a registry of contracts and contract creators.
 */
interface RegistryInterface {
    /**
     * @notice Registers a new contract.
     * @dev Only authorized contract creators can call this method.
     * @param parties an array of addresses who become parties in the contract.
     * @param contractAddress defines the address of the deployed contract.
     */
    function registerContract(address[] calldata parties, address contractAddress) external;

    /**
     * @notice Returns whether the contract has been registered with the registry.
     * @dev If it is registered, it is an authorized participant in the UMA system.
     * @param contractAddress address of the contract.
     * @return bool indicates whether the contract is registered.
     */
    function isContractRegistered(address contractAddress) external view returns (bool);

    /**
     * @notice Returns a list of all contracts that are associated with a particular party.
     * @param party address of the party.
     * @return an array of the contracts the party is registered to.
     */
    function getRegisteredContracts(address party) external view returns (address[] memory);

    /**
     * @notice Returns all registered contracts.
     * @return all registered contract addresses within the system.
     */
    function getAllRegisteredContracts() external view returns (address[] memory);

    /**
     * @notice Adds a party to the calling contract.
     * @dev msg.sender must be the contract to which the party member is added.
     * @param party address to be added to the contract.
     */
    function addPartyToContract(address party) external;

    /**
     * @notice Removes a party member to the calling contract.
     * @dev msg.sender must be the contract to which the party member is added.
     * @param party address to be removed from the contract.
     */
    function removePartyFromContract(address party) external;

    /**
     * @notice checks if an address is a party in a contract.
     * @param party party to check.
     * @param contractAddress address to check against the party.
     * @return bool indicating if the address is a party of the contract.
     */
    function isPartyMemberOfContract(address party, address contractAddress) external view returns (bool);
}