GoBridgeMultiPSM_V1

{{
  "language": "Solidity",
  "sources": {
    "src/psm/GoBridgeMultiPSM_V1.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

/**
 * @title GoBridgeMultiPSM_V1
 * @notice UUPS-upgradeable multi-asset Peg Stability Module (USDC/USDT/DAI).
 *         Mints goUSD 1:1 against supported stables (optional mint fee), and
 *         redeems goUSD 1:1 back to the same asset from in-kind reserves.
 * @dev    Policy & safety:
 *         - Mint path enforces an oracle price band (via GOracle.getAssetPrice), which
 *           also refreshes lastGoodPrice in the oracle. Redeem has 0 fee and uses reserves.
 *         - Per-asset and global net ceilings (minted - redeemed) limit outstanding supply.
 *         - Guardian can pause globally, enable/disable assets, or set HALTED (mint off).
 *         - Fees (if any) are minted to Treasury and accounted via Treasury.credit().
 *         - Reentrancy-guarded, pausable, role-gated admin/config.
 *         - Storage gap reserved; never reorder existing variables on upgrade.
 */

import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import {AccessControlUpgradeable} from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol";
import {PausableUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/PausableUpgradeable.sol";

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC20Permit} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

import {IGoUSD} from "../interfaces/IGoUSD.sol";
import {IGOracle} from "../interfaces/IGOracle.sol";
import {IGoTreasury} from "../interfaces/IGoTreasury.sol";

contract GoBridgeMultiPSM_V1 is Initializable, UUPSUpgradeable, AccessControlUpgradeable, ReentrancyGuardUpgradeable, PausableUpgradeable {
  using SafeERC20 for IERC20;

  // ─────────────────────────────────────────────────────────────────────────────
  // Roles / Storage
  // ─────────────────────────────────────────────────────────────────────────────

  /// @notice Asset config & parameter manager (oracle/treasury/ceilings/fees).
  bytes32 public constant ASSET_MANAGER_ROLE = keccak256("ASSET_MANAGER_ROLE");
  /// @notice Can pause/unpause and toggle asset enabled/halting.
  bytes32 public constant GUARDIAN_ROLE = keccak256("GUARDIAN_ROLE");

  /// @notice goUSD token to mint/burn.
  IGoUSD public goUSD;
  /// @notice Oracle used for mint price band checks.
  IGOracle public gOracle;
  /// @notice Treasury that receives mint fees (if any).
  IGoTreasury public goTreasury;

  /// @notice Global ceiling for net outstanding goUSD (sum over assets).
  uint256 public globalMintCeiling;
  /// @notice Current global net minted (mints - redeems).
  uint256 public globalMinted;

  /// @notice Per-asset risk/config state.
  struct Asset {
    address token;      // ERC20 address (e.g., USDC/USDT/DAI)
    uint8   decimals;   // token decimals
    bool    enabled;    // asset listed for use
    uint8   mode;       // 0=PEG1 active, 2=HALTED (mint closed; redeem stays open)
    uint16  bandLowBps; // price band lower bound in bps vs $1 (e.g., 9900 = $0.99)
    uint16  bandHighBps;// price band upper bound in bps vs $1 (e.g., 10100 = $1.01)
    uint256 mintCeiling;// per-asset net outstanding ceiling (0 = unlimited)
    uint256 minted;     // current net minted for this asset
    uint16  feeMintBps; // fee on mint in bps (redeem = 0 fee)
  }

  /// @notice Asset map keyed by symbol (bytes32, e.g., "USDC").
  mapping(bytes32 => Asset) public assets;
  /// @notice List of configured symbols (for UIs/telemetry).
  bytes32[] public symbolList;

  // ─────────────────────────────────────────────────────────────────────────────
  // Events
  // ─────────────────────────────────────────────────────────────────────────────

  event GuardianSet(address indexed account, bool allowed);
  event AssetManagerSet(address indexed account, bool allowed);
  event ParamsUpdated(address gOracle, address surplusCollector, uint256 globalMintCeiling);
  event AssetConfigured(bytes32 indexed sym, address token, uint8 decimals, bool enabled, uint8 mode);
  event AssetRiskParamsUpdated(bytes32 indexed sym, uint16 bandLowBps, uint16 bandHighBps);
  event AssetCeilingUpdated(bytes32 indexed sym, uint256 mintCeiling);
  event AssetFeesUpdated(bytes32 indexed sym, uint16 feeMintBps);
  event Minted(bytes32 indexed sym, address indexed user, uint256 stableIn, uint256 goUSDOut, uint256 fee);
  event Redeemed(bytes32 indexed sym, address indexed user, uint256 goUSDIn, uint256 stableOut);
  event Swept(address indexed token, address indexed to, uint256 amount);
  event ReserveMigrated(bytes32 indexed sym, address indexed to, uint256 amount);

  // ─────────────────────────────────────────────────────────────────────────────
  // Errors
  // ─────────────────────────────────────────────────────────────────────────────

  error ZeroAddress();
  error InvalidParams();
  error PermitFailed();
  error NotEnabled();
  error Halted();
  error OracleUnavailable();
  error PriceOutOfBand();
  error AmountZero();
  error CeilingExceeded();
  error InsufficientReserve();

  /// @custom:oz-upgrades-unsafe-allow constructor
  constructor() {
    _disableInitializers();
  }

  // ─────────────────────────────────────────────────────────────────────────────
  // Initialization / Upgrade
  // ─────────────────────────────────────────────────────────────────────────────

  /**
   * @notice Initialize core references and grant roles to `admin`.
   * @dev    Also sets the initial global ceiling value.
   * @param  admin              Admin address (receives DEFAULT/ASSET_MANAGER/GUARDIAN).
   * @param  _goUSD             goUSD token proxy address.
   * @param  _gOracle           Oracle contract address.
   * @param  _goTreasury        Treasury contract address.
   * @param  _globalMintCeiling Global net ceiling (0 = unlimited).
   */
  function initialize(
    address admin,
    address _goUSD,
    address _gOracle,
    address _goTreasury,
    uint256 _globalMintCeiling
  ) external initializer {
    if (admin == address(0) || _goUSD == address(0) || _gOracle == address(0) || _goTreasury == address(0)) revert ZeroAddress();

    __UUPSUpgradeable_init();
    __AccessControl_init();
    __ReentrancyGuard_init();
    __Pausable_init();

    _grantRole(DEFAULT_ADMIN_ROLE, admin);
    _grantRole(ASSET_MANAGER_ROLE, admin);
    _grantRole(GUARDIAN_ROLE, admin);
    if (msg.sender != admin) {
      _revokeRole(DEFAULT_ADMIN_ROLE, msg.sender);
    }

    goUSD             = IGoUSD(_goUSD);
    gOracle           = IGOracle(_gOracle);
    goTreasury        = IGoTreasury(_goTreasury);
    globalMintCeiling = _globalMintCeiling;

    emit ParamsUpdated(_gOracle, _goTreasury, _globalMintCeiling);
  }

  /// @inheritdoc UUPSUpgradeable
  function _authorizeUpgrade(address) internal override onlyRole(DEFAULT_ADMIN_ROLE) {}

  // ─────────────────────────────────────────────────────────────────────────────
  // Admin (roles & params)
  // ─────────────────────────────────────────────────────────────────────────────

  /**
   * @notice Grant or revoke GUARDIAN_ROLE for `account`.
   * @param  account Target account.
   * @param  allowed True to grant, false to revoke.
   */
  function setGuardian(address account, bool allowed) external onlyRole(DEFAULT_ADMIN_ROLE) {
    if (account == address(0)) revert ZeroAddress();
    if (allowed) _grantRole(GUARDIAN_ROLE, account);
    else _revokeRole(GUARDIAN_ROLE, account);
    emit GuardianSet(account, allowed);
  }

  /**
   * @notice Grant or revoke ASSET_MANAGER_ROLE for `account`.
   * @param  account Target account.
   * @param  allowed True to grant, false to revoke.
   */
  function setAccountant(address account, bool allowed) external onlyRole(DEFAULT_ADMIN_ROLE) {
    if (account == address(0)) revert ZeroAddress();
    if (allowed) _grantRole(ASSET_MANAGER_ROLE, account);
    else _revokeRole(ASSET_MANAGER_ROLE, account);
    emit AssetManagerSet(account, allowed);
  }

  /**
   * @notice Update oracle reference.
   * @param  _gOracle New oracle address.
   */
  function setOracle(address _gOracle) external onlyRole(ASSET_MANAGER_ROLE) {
    if (_gOracle == address(0)) revert ZeroAddress();
    gOracle = IGOracle(_gOracle);
    emit ParamsUpdated(_gOracle, address(goTreasury), globalMintCeiling);
  }

  /**
   * @notice Update treasury reference.
   * @param  _goTreasury New treasury address.
   */
  function setGoTreasury(address _goTreasury) external onlyRole(ASSET_MANAGER_ROLE) {
    if (_goTreasury == address(0)) revert ZeroAddress();
    goTreasury = IGoTreasury(_goTreasury);
    emit ParamsUpdated(address(gOracle), _goTreasury, globalMintCeiling);
  }

  /**
   * @notice Update global net ceiling.
   * @param  _globalMintCeiling New global ceiling (0 = unlimited).
   */
  function setGlobalMintCeiling(uint256 _globalMintCeiling) external onlyRole(ASSET_MANAGER_ROLE) {
    globalMintCeiling = _globalMintCeiling;
    emit ParamsUpdated(address(gOracle), address(goTreasury), _globalMintCeiling);
  }

  /**
   * @notice Create/update an asset configuration.
   * @dev    Adds symbol to `symbolList` on first setup. Mode must be 0 or 2.
   * @param  sym           Asset symbol key (e.g., bytes32("USDC")).
   * @param  token         ERC20 address.
   * @param  decimals_     Token decimals.
   * @param  enabled       Whether asset is active.
   * @param  mode_         0=PEG1, 2=HALTED.
   * @param  bandLowBps_   Lower price band bound in bps vs $1.
   * @param  bandHighBps_  Upper price band bound in bps vs $1.
   * @param  mintCeiling_  Per-asset net ceiling (0 = unlimited).
   * @param  feeMintBps_   Mint fee in bps (redeem fee = 0).
   */
  function configureAsset(
    bytes32 sym,
    address token,
    uint8   decimals_,
    bool    enabled,
    uint8   mode_,
    uint16  bandLowBps_,
    uint16  bandHighBps_,
    uint256 mintCeiling_,
    uint16  feeMintBps_
  ) external onlyRole(ASSET_MANAGER_ROLE) {
    if(token == address(0)) revert ZeroAddress();
    if (mode_ != 0 && mode_ != 2) revert InvalidParams();
    if (bandLowBps_ == 0 || bandHighBps_ < bandLowBps_) revert InvalidParams();

    Asset storage a = assets[sym];
    if (a.token == address(0)) {
      symbolList.push(sym);
    }

    a.token = token;
    a.decimals = decimals_;
    a.enabled = enabled;
    a.mode = mode_;
    a.bandLowBps = bandLowBps_;
    a.bandHighBps = bandHighBps_;
    a.mintCeiling = mintCeiling_;
    a.feeMintBps = feeMintBps_;

    emit AssetConfigured(sym, token, decimals_, enabled, mode_);
    emit AssetRiskParamsUpdated(sym, bandLowBps_, bandHighBps_);
    emit AssetCeilingUpdated(sym, mintCeiling_);
    emit AssetFeesUpdated(sym, feeMintBps_);
  }

  /**
   * @notice Enable/disable an asset (guardian control).
   * @param  sym     Asset symbol.
   * @param  enabled New enabled flag.
   */
  function setAssetEnabled(bytes32 sym, bool enabled) external onlyRole(GUARDIAN_ROLE) {
    if (assets[sym].token == address(0)) revert InvalidParams();
    assets[sym].enabled = enabled;
    emit AssetConfigured(sym, assets[sym].token, assets[sym].decimals, enabled, assets[sym].mode);
  }

  /**
   * @notice Halt/unhalt minting for an asset; redeem remains open when halted.
   * @param  sym    Asset symbol.
   * @param  halted True to set HALTED (mode=2), false to set PEG1 (mode=0).
   */
  function setAssetHalted(bytes32 sym, bool halted) external onlyRole(GUARDIAN_ROLE) {
    if (assets[sym].token == address(0)) revert InvalidParams();
    assets[sym].mode = halted ? 2 : 0;
    emit AssetConfigured(sym, assets[sym].token, assets[sym].decimals, assets[sym].enabled, assets[sym].mode);
  }

  /**
   * @notice Update price band for an asset.
   * @param  sym     Asset symbol.
   * @param  lowBps  New lower bound (bps vs $1).
   * @param  highBps New upper bound (bps vs $1).
   */
  function setAssetBand(bytes32 sym, uint16 lowBps, uint16 highBps) external onlyRole(ASSET_MANAGER_ROLE) {
    if (assets[sym].token == address(0)) revert InvalidParams();
    if (lowBps == 0 || highBps < lowBps) revert InvalidParams();
    assets[sym].bandLowBps  = lowBps;
    assets[sym].bandHighBps = highBps;
    emit AssetRiskParamsUpdated(sym, lowBps, highBps);
  }

  /**
   * @notice Update per-asset ceiling.
   * @param  sym     Asset symbol.
   * @param  ceiling New ceiling (0 = unlimited).
   */
  function setAssetCeiling(bytes32 sym, uint256 ceiling) external onlyRole(ASSET_MANAGER_ROLE) {
    if (assets[sym].token == address(0)) revert InvalidParams();
    assets[sym].mintCeiling = ceiling;
    emit AssetCeilingUpdated(sym, ceiling);
  }

  /**
   * @notice Update mint fee (bps) for an asset.
   * @param  sym Asset symbol.
   * @param  bps New bps value (e.g., 50 = 0.50%).
   */
  function setAssetFeeMintBps(bytes32 sym, uint16 bps) external onlyRole(ASSET_MANAGER_ROLE) {
    if (assets[sym].token == address(0)) revert InvalidParams();
    assets[sym].feeMintBps = bps;
    emit AssetFeesUpdated(sym, bps);
  }

  /// @notice Pause/unpause all PSM operations.
  function pause() external onlyRole(GUARDIAN_ROLE) { _pause(); }
  function unpause() external onlyRole(GUARDIAN_ROLE) { _unpause(); }

  /**
   * @notice Sweep unexpected ERC20s (not part of configured assets) while paused.
   * @param  token  ERC20 to sweep.
   * @param  to     Recipient.
   * @param  amount Amount to transfer.
   */
  function sweepUnknownERC20(address token, address to, uint256 amount) external onlyRole(GUARDIAN_ROLE) whenPaused {
    if (token == address(0) || to == address(0)) revert ZeroAddress();
    if (_isAssetToken(token)) revert InvalidParams();

    IERC20(token).safeTransfer(to, amount);
    emit Swept(token, to, amount);
  }

  /**
   * @notice Migrate an asset's reserves (e.g., during deprecation) while paused.
   * @dev    Asset must be disabled or halted.
   * @param  sym    Asset symbol.
   * @param  to     Recipient for migration.
   * @param  amount Amount to migrate (clamped to balance).
   */
  function migrateReserve(bytes32 sym, address to, uint256 amount) external onlyRole(DEFAULT_ADMIN_ROLE) whenPaused {
    if (to == address(0)) revert ZeroAddress();

    Asset storage a = assets[sym];
    if (a.token == address(0)) revert InvalidParams();
    if (a.enabled && a.mode != 2) revert InvalidParams();

    uint256 bal = IERC20(a.token).balanceOf(address(this));
    if (amount > bal) amount = bal;

    IERC20(a.token).safeTransfer(to, amount);
    emit ReserveMigrated(sym, to, amount);
  }

  // ─────────────────────────────────────────────────────────────────────────────
  // Core ops
  // ─────────────────────────────────────────────────────────────────────────────

  /**
   * @notice Deposit `stableAmount` of `sym` and receive goUSD 1:1 minus fee.
   * @dev    Enforces oracle band and net ceilings; fee (if any) goes to Treasury.
   * @param  sym          Asset symbol (e.g., "USDC").
   * @param  stableAmount Amount of the stable token to deposit.
   */
  function deposit(bytes32 sym, uint256 stableAmount) external nonReentrant whenNotPaused {
    if (stableAmount == 0) revert AmountZero();
    _deposit(sym, stableAmount);
  }

  /**
   * @notice Deposit `stableAmount` of `sym` with a permit and receive goUSD 1:1 minus fee.
   * @dev    Enforces oracle band and net ceilings; fee (if any) goes to Treasury.
   * @param  sym          Asset symbol (e.g., "USDC").
   * @param  stableAmount Amount of the stable token to deposit.
   */
  function depositWithPermit(
    bytes32 sym,
    uint256 stableAmount,
    uint256 deadline,
    uint8 v, bytes32 r, bytes32 s
  ) external nonReentrant whenNotPaused {
    if (stableAmount == 0) revert AmountZero();
    Asset storage a = assets[sym];

    _permit2612(a.token, msg.sender, address(this), stableAmount, deadline, v, r, s);
    _deposit(sym, stableAmount);
  }

  /**
   * @notice Redeem goUSD back to the specified asset 1:1 from in-kind reserves.
   * @dev    0 fee; requires sufficient on-chain reserves of that asset.
   * @param  sym     Asset symbol to redeem into.
   * @param  goUSD18 Amount of goUSD (18 decimals) to redeem.
   */
  function redeem(bytes32 sym, uint256 goUSD18) external nonReentrant whenNotPaused {
    if (goUSD18 == 0) revert AmountZero();
    _redeem(sym, goUSD18);
  }

  /**
   * @notice Redeem goUSD with permit back to the specified asset 1:1 from in-kind reserves.
   * @dev    0 fee; requires sufficient on-chain reserves of that asset.
   * @param  sym     Asset symbol to redeem into.
   * @param  goUSD18 Amount of goUSD (18 decimals) to redeem.
   */
  function redeemWithPermit(
    bytes32 sym,
    uint256 goUSD18,
    uint256 deadline,
    uint8 v, bytes32 r, bytes32 s
  ) external nonReentrant whenNotPaused {
    if (goUSD18 == 0) revert AmountZero();
    
    _permit2612(address(goUSD), msg.sender, address(this), goUSD18, deadline, v, r, s);
    _redeem(sym, goUSD18);
  }

  // ─────────────────────────────────────────────────────────────────────────────
  // View helpers
  // ─────────────────────────────────────────────────────────────────────────────

  /// @notice Returns the list of configured asset symbols.
  function getSymbols() external view returns (bytes32[] memory) {
    return symbolList;
  }

  /// @notice Read the static asset configuration for `sym`.
  function getAssetConfig(bytes32 sym) external view returns (Asset memory) {
    Asset storage a = assets[sym];
    if (a.token == address(0)) revert InvalidParams();
    return a;
  }

  /**
   * @notice Read dynamic state for `sym` (reserve, net minted, price bps, in-band flag, halted flag).
   * @return reserve  Current token balance held by the PSM.
   * @return minted   Current net minted for this asset.
   * @return priceBps Latest peek price in bps vs $1 (0 if oracle unavailable).
   * @return inBand   Whether price is within configured band.
   * @return halted   Whether asset is in HALTED mode.
   */
  function getAssetState(bytes32 sym) external view returns (uint256 reserve, uint256 minted, uint256 priceBps, bool inBand, bool halted) {
    Asset storage a = assets[sym];
    if (a.token == address(0)) revert InvalidParams();
    reserve = IERC20(a.token).balanceOf(address(this));
    minted = a.minted;

    (uint256 pBps, bool ok) = _priceBpsPeek(a.token);
    priceBps = ok ? pBps : 0;
    inBand = ok && pBps >= a.bandLowBps && pBps <= a.bandHighBps;
    halted = a.mode == 2;
  }

  /// @notice Global counters + pause status for telemetry.
  function getGlobalState() external view returns (uint256 _globalMinted, uint256 _globalCeiling, bool paused_) {
    return (globalMinted, globalMintCeiling, paused());
  }

  /// @notice Convenience symbol constants.
  function symUSDC() public pure returns (bytes32) { return bytes32("USDC"); }
  function symUSDT() public pure returns (bytes32) { return bytes32("USDT"); }
  function symDAI()  public pure returns (bytes32) { return bytes32("DAI"); }

  // ─────────────────────────────────────────────────────────────────────────────
  // Internals
  // ─────────────────────────────────────────────────────────────────────────────

  /**
   * @notice Core deposit flow (shared by deposit & depositWithPermit).
   * @dev    - Enforces asset enabled + not HALTED
   *         - Oracle band guard (updates lastGoodPrice via getAssetPrice)
   *         - Net ceilings (per-asset + global)
   *         - Transfers stable in, mints goUSD to user, fee (if any) to Treasury
   *         - Updates per-asset and global minted counters
   * @param  sym          Asset symbol (e.g., bytes32("USDC"))
   * @param  stableAmount Amount of the stable token (token’s native decimals)
   */
  function _deposit(bytes32 sym, uint256 stableAmount) internal {
    Asset storage a = assets[sym];
    if (!a.enabled) revert NotEnabled();
    if (a.mode == 2) revert Halted();

    (uint256 priceBps, bool ok) = _priceBps(a.token);
    if (!ok) revert OracleUnavailable();
    if (priceBps < a.bandLowBps || priceBps > a.bandHighBps) {
      revert PriceOutOfBand();
    }

    uint256 goUSD18 = _scaleTo18(stableAmount, a.decimals);
    uint256 fee = (goUSD18 * a.feeMintBps) / 10_000;
    uint256 toUser = goUSD18 - fee;
    if (toUser == 0) revert InvalidParams();

    _enforceCeilings(a, goUSD18);

    IERC20(a.token).safeTransferFrom(msg.sender, address(this), stableAmount);
    goUSD.mint(msg.sender, toUser);
    if (fee > 0) {
      goUSD.mint(address(goTreasury), fee);
      goTreasury.credit(fee, bytes32("PSM_MINT_FEE"));
    }

    a.minted     += goUSD18;
    globalMinted += goUSD18;

    emit Minted(sym, msg.sender, stableAmount, toUser, fee);
  }

  /**
   * @notice Core redeem flow (shared by redeem & redeemWithPermit).
   * @dev    - Enforces asset enabled
   *         - Requires sufficient in-kind reserves
   *         - Burns goUSD from user and sends out the stable
   *         - Decrements per-asset and global minted counters
   * @param  sym     Asset symbol to redeem into
   * @param  goUSD18 Amount of goUSD to redeem (18 decimals)
   */
  function _redeem(bytes32 sym, uint256 goUSD18) internal {
    Asset storage a = assets[sym];
    if (!a.enabled) revert NotEnabled();

    uint256 stableOut = _scaleFrom18(goUSD18, a.decimals);
    uint256 bal = IERC20(a.token).balanceOf(address(this));
    if (bal < stableOut) revert InsufficientReserve();

    goUSD.transferFrom(msg.sender, address(this), goUSD18);
    goUSD.burn(goUSD18);

    IERC20(a.token).safeTransfer(msg.sender, stableOut);

    if (goUSD18 > a.minted) {
      globalMinted -= a.minted;
      a.minted = 0;
    } else {
      a.minted     -= goUSD18;
      globalMinted -= goUSD18;
    }

    emit Redeemed(sym, msg.sender, goUSD18, stableOut);
  }

  /**
   * @notice EIP-2612 permit helper; grants allowance in the same tx (gasless approve UX).
   * @dev    - Expects target `token` to implement EIP-2612 `permit`
   *         - Low-level call keeps compatibility across OZ and non-OZ impls
   *         - Reverts with PermitFailed() if call fails (no code / non-2612 / expired / bad sig)
   * @param  token     ERC20 token address that implements permit (e.g., goUSD, USDC/DAI on testnets)
   * @param  owner     Address granting allowance (the user)
   * @param  spender   Address receiving allowance (this contract)
   * @param  value     Allowance amount to set
   * @param  deadline  EIP-2612 signature deadline
   * @param  v,r,s     ECDSA signature components
   */
  function _permit2612(
    address token,
    address owner,
    address spender,
    uint256 value,
    uint256 deadline,
    uint8 v, bytes32 r, bytes32 s
  ) internal {
    (bool ok, ) = token.call(
      abi.encodeWithSelector(IERC20Permit.permit.selector, owner, spender, value, deadline, v, r, s)
    );
    if (!ok) revert PermitFailed();
  }

  /// @dev Returns true iff `token` matches any configured asset token.
  function _isAssetToken(address token) internal view returns (bool) {
    uint256 n = symbolList.length;
    for (uint256 i = 0; i < n; i++) {
      Asset storage a = assets[symbolList[i]];
      if (a.token == token) return true;
    }
    return false;
  }

  /// @dev Enforce per-asset and global net ceilings.
  function _enforceCeilings(Asset storage a, uint256 mintAmount18) internal view {
    if (a.mintCeiling > 0 && a.minted + mintAmount18 > a.mintCeiling) revert CeilingExceeded();
    if (globalMintCeiling > 0 && globalMinted + mintAmount18 > globalMintCeiling) revert CeilingExceeded();
  }

  /// @dev Fetch live price and convert to bps vs $1; also updates lastGoodPrice in oracle.
  function _priceBps(address assetToken) internal returns (uint256 priceBps, bool ok) {
    (uint256 p, uint8 dec,,) = gOracle.getAssetPrice(assetToken);
    if (p == 0) return (0, false);
    uint256 price18 = (dec <= 18) ? (p * _pow10(uint8(18 - dec))) : (p / _pow10(uint8(dec - 18)));
    priceBps = (price18 * 10_000) / 1e18;
    ok = true;
  }

  /// @dev View-only price in bps vs $1 (does not update lastGoodPrice).
  function _priceBpsPeek(address assetToken) internal view returns (uint256 priceBps, bool ok) {
    (uint256 p, uint8 dec,,) = gOracle.peekAssetPrice(assetToken);
    if (p == 0) return (0, false);
    uint256 price18 = (dec <= 18) ? (p * _pow10(uint8(18 - dec))) : (p / _pow10(uint8(dec - 18)));
    priceBps = (price18 * 10_000) / 1e18;
    ok = true;
  }

  /// @dev Scale an `amount` with `dec` to 18 decimals.
  function _scaleTo18(uint256 amount, uint8 dec) internal pure returns (uint256) {
    return (dec <= 18) ? amount * _pow10(uint8(18 - dec)) : amount / _pow10(uint8(dec - 18));
  }

  /// @dev Scale an 18-decimal `amount18` down to token decimals `dec`.
  function _scaleFrom18(uint256 amount18, uint8 dec) internal pure returns (uint256) {
    return (dec <= 18) ? amount18 / _pow10(uint8(18 - dec)) : amount18 * _pow10(uint8(dec - 18));
  }

  /// @dev 10^n helper.
  function _pow10(uint8 n) internal pure returns (uint256) {
    uint256 r = 1;
    for (uint8 i = 0; i < n; i++) { r *= 10; }
    return r;
  }

  // ─────────────────────────────────────────────────────────────────────────────
  // Storage gap (for upgrades)
  // ─────────────────────────────────────────────────────────────────────────────

  uint256[200] private __gap;
}"
    },
    "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reinitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._initialized = 1;
        if (isTopLevelCall) {
            $._initializing = true;
        }
        _;
        if (isTopLevelCall) {
            $._initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._initialized = version;
        $._initializing = true;
        _;
        $._initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _getInitializableStorage()._initializing;
    }

    /**
     * @dev Pointer to storage slot. Allows integrators to override it with a custom storage location.
     *
     * NOTE: Consider following the ERC-7201 formula to derive storage locations.
     */
    function _initializableStorageSlot() internal pure virtual returns (bytes32) {
        return INITIALIZABLE_STORAGE;
    }

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        bytes32 slot = _initializableStorageSlot();
        assembly {
            $.slot := slot
        }
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/UUPSUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (proxy/utils/UUPSUpgradeable.sol)

pragma solidity ^0.8.22;

import {IERC1822Proxiable} from "@openzeppelin/contracts/interfaces/draft-IERC1822.sol";
import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol";
import {Initializable} from "./Initializable.sol";

/**
 * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
 * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
 *
 * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
 * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
 * `UUPSUpgradeable` with a custom implementation of upgrades.
 *
 * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
 */
abstract contract UUPSUpgradeable is Initializable, IERC1822Proxiable {
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    address private immutable __self = address(this);

    /**
     * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgradeTo(address)`
     * and `upgradeToAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called,
     * while `upgradeToAndCall` will invoke the `receive` function if the second argument is the empty byte string.
     * If the getter returns `"5.0.0"`, only `upgradeToAndCall(address,bytes)` is present, and the second argument must
     * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function
     * during an upgrade.
     */
    string public constant UPGRADE_INTERFACE_VERSION = "5.0.0";

    /**
     * @dev The call is from an unauthorized context.
     */
    error UUPSUnauthorizedCallContext();

    /**
     * @dev The storage `slot` is unsupported as a UUID.
     */
    error UUPSUnsupportedProxiableUUID(bytes32 slot);

    /**
     * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
     * a proxy contract with an implementation (as defined in ERC-1967) pointing to self. This should only be the case
     * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
     * function through ERC-1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
     * fail.
     */
    modifier onlyProxy() {
        _checkProxy();
        _;
    }

    /**
     * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
     * callable on the implementing contract but not through proxies.
     */
    modifier notDelegated() {
        _checkNotDelegated();
        _;
    }

    function __UUPSUpgradeable_init() internal onlyInitializing {
    }

    function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Implementation of the ERC-1822 {proxiableUUID} function. This returns the storage slot used by the
     * implementation. It is used to validate the implementation's compatibility when performing an upgrade.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
     */
    function proxiableUUID() external view virtual notDelegated returns (bytes32) {
        return ERC1967Utils.IMPLEMENTATION_SLOT;
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
     * encoded in `data`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     *
     * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, data);
    }

    /**
     * @dev Reverts if the execution is not performed via delegatecall or the execution
     * context is not of a proxy with an ERC-1967 compliant implementation pointing to self.
     */
    function _checkProxy() internal view virtual {
        if (
            address(this) == __self || // Must be called through delegatecall
            ERC1967Utils.getImplementation() != __self // Must be called through an active proxy
        ) {
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Reverts if the execution is performed via delegatecall.
     * See {notDelegated}.
     */
    function _checkNotDelegated() internal view virtual {
        if (address(this) != __self) {
            // Must not be called through delegatecall
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
     * {upgradeToAndCall}.
     *
     * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
     *
     * ```solidity
     * function _authorizeUpgrade(address) internal onlyOwner {}
     * ```
     */
    function _authorizeUpgrade(address newImplementation) internal virtual;

    /**
     * @dev Performs an implementation upgrade with a security check for UUPS proxies, and additional setup call.
     *
     * As a security check, {proxiableUUID} is invoked in the new implementation, and the return value
     * is expected to be the implementation slot in ERC-1967.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function _upgradeToAndCallUUPS(address newImplementation, bytes memory data) private {
        try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
            if (slot != ERC1967Utils.IMPLEMENTATION_SLOT) {
                revert UUPSUnsupportedProxiableUUID(slot);
            }
            ERC1967Utils.upgradeToAndCall(newImplementation, data);
        } catch {
            // The implementation is not UUPS
            revert ERC1967Utils.ERC1967InvalidImplementation(newImplementation);
        }
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/contracts/access/AccessControlUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (access/AccessControl.sol)

pragma solidity ^0.8.20;

import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {ERC165Upgradeable} from "../utils/introspection/ERC165Upgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControl, ERC165Upgradeable {
    struct RoleData {
        mapping(address account => bool) hasRole;
        bytes32 adminRole;
    }

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;


    /// @custom:storage-location erc7201:openzeppelin.storage.AccessControl
    struct AccessControlStorage {
        mapping(bytes32 role => RoleData) _roles;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant AccessControlStorageLocation = 0x02dd7bc7dec4dceedda775e58dd541e08a116c6c53815c0bd028192f7b626800;

    function _getAccessControlStorage() private pure returns (AccessControlStorage storage $) {
        assembly {
            $.slot := AccessControlStorageLocation
        }
    }

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with an {AccessControlUnauthorizedAccount} error including the required role.
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    function __AccessControl_init() internal onlyInitializing {
    }

    function __AccessControl_init_unchained() internal onlyInitializing {
    }
    /// @inheritdoc IERC165
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        return $._roles[role].hasRole[account];
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
     * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
     * is missing `role`.
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert AccessControlUnauthorizedAccount(account, role);
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        return $._roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address callerConfirmation) public virtual {
        if (callerConfirmation != _msgSender()) {
            revert AccessControlBadConfirmation();
        }

        _revokeRole(role, callerConfirmation);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        AccessControlStorage storage $ = _getAccessControlStorage();
        bytes32 previousAdminRole = getRoleAdmin(role);
        $._roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        if (!hasRole(role, account)) {
            $._roles[role].hasRole[account] = true;
            emit RoleGranted(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Attempts to revoke `role` from `account` and returns a boolean indicating if `role` was revoked.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        if (hasRole(role, account)) {
            $._roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/contracts/utils/ReentrancyGuardUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If EIP-1153 (transient storage) is available on the chain you're deploying at,
 * consider using {ReentrancyGuardTransient} instead.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuardUpgradeable is Initializable {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    /// @custom:storage-location erc7201:openzeppelin.storage.ReentrancyGuard
    struct ReentrancyGuardStorage {
        uint256 _status;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ReentrancyGuard")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant ReentrancyGuardStorageLocation = 0x9b779b17422d0df92223018b32b4d1fa46e071723d6817e2486d003becc55f00;

    function _getReentrancyGuardStorage() private pure returns (ReentrancyGuardStorage storage $) {
        assembly {
            $.slot := ReentrancyGuardStorageLocation
        }
    }

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        $._status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if ($._status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        $._status = ENTERED;
    }

    function _nonReentrantAfter() private {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        $._status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        return $._status == ENTERED;
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/contracts/utils/PausableUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Pausable
    struct PausableStorage {
        bool _paused;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Pausable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant PausableStorageLocation = 0xcd5ed15c6e187e77e9aee88184c21f4f2182ab5827cb3b7e07fbedcd63f03300;

    function _getPausableStorage() private pure returns (PausableStorage storage $) {
        assembly {
            $.slot := PausableStorageLocation
        }
    }

    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    /**
     * @dev The operation failed because the contract is paused.
     */
    error EnforcedPause();

    /**
     * @dev The operation failed because the contract is not paused.
     */
    error ExpectedPause();

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    function __Pausable_init() internal onlyInitializing {
    }

    function __Pausable_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        PausableStorage storage $ = _getPausableStorage();
        return $._paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        PausableStorage storage $ = _getPausableStorage();
        $._paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        PausableStorage storage $ = _getPausableStorage();
        $._paused = false;
        emit Unpaused(_msgSender());
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev M