Token API

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@hanzo/tokens/ITokenRegistry.sol";

contract MultiTokenVault {
    using SafeERC20 for IERC20;

    ITokenRegistry public registry;
    mapping(address => mapping(address => uint256)) public balances;

    constructor(address _registry) {
        registry = ITokenRegistry(_registry);
    }

    // Deposit any registered token
    function deposit(address token, uint256 amount) external {
        require(registry.isVerified(token), "Token not verified");
        require(!registry.isSpam(token), "Spam token");

        IERC20(token).safeTransferFrom(msg.sender, address(this), amount);
        balances[msg.sender][token] += amount;
    }

    // Get token metadata from registry
    function getTokenInfo(address token) external view returns (
        string memory name,
        string memory symbol,
        uint8 decimals,
        uint256 price
    ) {
        return registry.getTokenInfo(token);
    }

    // Batch check balances across tokens
    function getPortfolioValue(address user, address[] calldata tokens)
        external view returns (uint256 totalValue)
    {
        for (uint i = 0; i < tokens.length; i++) {
            (,,, uint256 price) = registry.getTokenInfo(tokens[i]);
            totalValue += balances[user][tokens[i]] * price / 1e18;
        }
    }
}