// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import "@openzeppelin/contracts@4.8.3/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts@4.8.3/token/ERC20/extensions/ERC20Burnable.sol";
import "@openzeppelin/contracts@4.8.3/security/Pausable.sol";
import "@openzeppelin/contracts@4.8.3/access/AccessControl.sol";
import "@openzeppelin/contracts@4.8.3/token/ERC20/extensions/draft-ERC20Permit.sol";

contract KIDDCOIN is ERC20, ERC20Burnable, Pausable, AccessControl, ERC20Permit {
    bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");

    constructor() ERC20("KIDDCOIN", "KDC") ERC20Permit("KIDDCOIN") {
        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _grantRole(PAUSER_ROLE, msg.sender);
        _mint(msg.sender, 10000000000 * 10 ** decimals());
        _grantRole(MINTER_ROLE, msg.sender);
    }

    function pause() public onlyRole(PAUSER_ROLE) {
        _pause();
    }

    function unpause() public onlyRole(PAUSER_ROLE) {
        _unpause();
    }

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

    function _beforeTokenTransfer(address from, address to, uint256 amount)
        internal
        whenNotPaused
        override
    {
        super._beforeTokenTransfer(from, to, amount);
    }
}
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