// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.10;

import {IERC20} from '@aave/core-v3/contracts/dependencies/openzeppelin/contracts/IERC20.sol';

/**
 * @title ICollector
 * @notice Defines the interface of the Collector contract
 * @author Aave
 **/
interface ICollector {
  /**
   * @dev Emitted during the transfer of ownership of the funds administrator address
   * @param fundsAdmin The new funds administrator address
   **/
  event NewFundsAdmin(address indexed fundsAdmin);

  /**
   * @dev Retrieve the current implementation Revision of the proxy
   * @return The revision version
   */
  function REVISION() external view returns (uint256);

  /**
   * @dev Retrieve the current funds administrator
   * @return The address of the funds administrator
   */
  function getFundsAdmin() external view returns (address);

  /**
   * @dev Approve an amount of tokens to be pulled by the recipient.
   * @param token The address of the asset
   * @param recipient The address of the entity allowed to pull tokens
   * @param amount The amount allowed to be pulled. If zero it will revoke the approval.
   */
  function approve(IERC20 token, address recipient, uint256 amount) external;

  /**
   * @dev Transfer an amount of tokens to the recipient.
   * @param token The address of the asset
   * @param recipient The address of the entity to transfer the tokens.
   * @param amount The amount to be transferred.
   */
  function transfer(IERC20 token, address recipient, uint256 amount) external;

  /**
   * @dev Transfer the ownership of the funds administrator role.
          This function should only be callable by the current funds administrator.
   * @param admin The address of the new funds administrator
   */
  function setFundsAdmin(address admin) external;
}