// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import { Ownable } from '@openzeppelin/contracts/access/Ownable.sol';
import { ERC20 } from '@openzeppelin/contracts/token/ERC20/ERC20.sol';
import { ERC20Burnable } from '@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol';
import { ERC20Permit } from '@openzeppelin/contracts/token/ERC20/extensions/ERC20Permit.sol';

contract ERC20Mock is ERC20, ERC20Burnable, ERC20Permit, Ownable {
    uint8 private immutable _decimals;

    constructor(
        string memory name_,
        string memory symbol_,
        uint8 decimals_,
        uint256 supply_
    ) ERC20(name_, symbol_) ERC20Permit(name_) Ownable(msg.sender) {
        _decimals = decimals_;
        _mint(msg.sender, supply_);
    }

    function decimals() public view override returns (uint8) {
        return _decimals;
    }

    function mint(uint256 amount) external onlyOwner {
        _mint(msg.sender, amount);
    }

    function mint(address to, uint256 amount) public onlyOwner {
        _mint(to, amount);
    }
}