Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.8.17+commit.8df45f5f.js&optimize=false&runs=200&gist=

contracts...tokens...SToken_Roles.sol

//SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Capped.sol";
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20FlashMint.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Snapshot.sol";


/// @custom:security contact [email protected]
contract ShaniToken is ERC20,Pausable,AccessControl,ERC20Permit,ERC20Snapshot,ERC20FlashMint{

    bytes32 public constant SNAPSHOT_ROLE = keccak256("SNAPSHOT_ROLE");
    bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
    /**
    Fixed Supply
    **/
    constructor() ERC20("SCoin","SCO") ERC20Permit("SCoin"){
        //_mint(msg.sender,1000*10**18);  
        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _grantRole(SNAPSHOT_ROLE,msg.sender);
        _grantRole(PAUSER_ROLE,msg.sender);
        _grantRole(MINTER_ROLE, msg.sender);
    }

    function mint(address to,uint256 amount) public onlyRole(MINTER_ROLE){
        _mint(to,amount);  //create new token
    }
    function snapshot() public onlyRole(SNAPSHOT_ROLE){
        _snapshot();
    }

    function pause() public onlyRole(PAUSER_ROLE){
        _pause();   //pause the token transaction
    }
    function unpause() public onlyRole(PAUSER_ROLE){
        _unpause();  //unpause the token transaction
    }
    function _beforeTokenTransfer(address from,address to,uint256 amount)
    internal
    whenNotPaused
    override(ERC20,ERC20Snapshot)
    {
        super._beforeTokenTransfer(from,to,amount);
    }


    /**
    Uncapped lazy supply
    **/
    //  constructor() ERC20("SCoin","SCO"){}

    //  function issueToken() public onlyOwner{
    //      _mint(msg.sender,1000*10**18);   
    //  }
    //  function issueToken(address receiver,uint256 amount) public onlyOwner{
    //      _mint(receiver,amount*10**decimals());
    //  }
}
/**
capped modular supply
**/
contract ShaniToken1 is ERC20Capped,AccessControl{
    
    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
    
    constructor(uint256 cap) ERC20("SCoin","SCO") ERC20Capped(cap){
        _grantRole(MINTER_ROLE,msg.sender);
    }

    function issueToken() public onlyRole(MINTER_ROLE){
        _mint(msg.sender,100*10**decimals());
    }
}