// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.28;

import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import {IERC4626} from "@openzeppelin/contracts/interfaces/IERC4626.sol";
import {IPolicyPool} from "../interfaces/IPolicyPool.sol";
import {Reserve} from "../Reserve.sol";

/**
 * @title Ensuro Premiums Account
 * @dev This contract holds the pure premiums of a set of risk modules. The pure premiums is the part of the premium
 * that is expected to cover the losses. The contract keeps track of the pure premiums of the active policies
 * (_activePurePremiums) and the surplus or deficit generated by the finalized policies (pure premiums collected -
 * losses).
 *
 * Collaborates with a junior {EToken} and a senior {EToken} that act as lenders when the premiums aren't enough to
 * cover the losses.
 *
 * @custom:security-contact security@ensuro.co
 * @author Ensuro
 */
contract ReserveMock is Reserve {
  using SafeERC20 for IERC20Metadata;

  IERC4626 internal _yieldVault;
  int256 internal _totalEarnings;

  /**
   * @dev Constructor of the contract, sets the immutable fields.
   *
   */
  /// @custom:oz-upgrades-unsafe-allow constructor
  constructor(IPolicyPool policyPool_) Reserve(policyPool_) {}

  /**
   * @dev Initializes the PremiumsAccount
   */
  function initialize() public initializer {
    __Reserve_init();
  }

  function yieldVault() public view override returns (IERC4626) {
    return _yieldVault;
  }

  function _setYieldVault(IERC4626 newYV) internal override {
    _yieldVault = newYV;
  }

  /**
   * @dev This is called by the {Reserve} base class to record the earnings generated by the asset management.
   *
   * @param earningsOrLosses Indicates the amount earned since last time earnings where recorded.
   * - If positive, repays the loans and accumulates the rest in the surplus.
   * - If negative (losses) substracts it from surplus. It never can exceed _maxDeficit and doesn't takes
   *   loans to cover asset losses.
   */
  function _yieldEarnings(int256 earningsOrLosses) internal override {
    _totalEarnings += earningsOrLosses;
    super._yieldEarnings(earningsOrLosses);
  }

  function addMoney(uint256 amount) external {
    currency().safeTransferFrom(msg.sender, address(this), amount);
  }

  function transferTo(address destination, uint256 amount) external {
    _transferTo(destination, amount);
  }

  /**
   * @dev This empty reserved space is put in place to allow future versions to add new
   * variables without shifting down storage in the inheritance chain.
   * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
   */
  uint256[48] private __gap;
}