// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

/**
 * @title MintableFungible
 */

import '@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol';
import '@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-ERC20PermitUpgradeable.sol';

contract MintableFungible is ERC20Upgradeable, ERC20PermitUpgradeable {

  event Mint(address indexed to, uint256 indexed quantity);
  event Burn(address indexed from, uint256 indexed quantity);
  function __MintableFungible_init(string memory name_, string memory symbol_) internal onlyInitializing {
    __ERC20_init(name_, symbol_);
  }

  /**
    * @dev Mint token
    * @param to_ - The receiver of the tokens
    * @param amount_ - The amount of token to mint
    */
  function mint(address to_, uint256 amount_) public {
    require(to_ != address(0), 'MintableFungible: mint to the zero address');
    require(amount_ > 0, 'MintableFungible: mint amount must be greater than 0');
    _mint(to_, amount_);
    emit Mint(to_, amount_);
  }

  /**
    * @dev Burn token
    * @param amount_ - The amount of token to burn
    */
  function burn(uint256 amount_) public {
    require(amount_ > 0, 'MintableFungible: amount must be greater than 0');
    _burn(_msgSender(), amount_);
    emit Burn(_msgSender(), amount_);
  }

  uint256[50] private __gap;
}