BuenoToken uses AccessControl, not Ownable - TokenTransfer.tsx incorrectly calls owner()

[schmidsi]

Problem

The BuenoToken.sol contract uses OpenZeppelin's AccessControl instead of Ownable, but the frontend code in packages/nextjs/app/contract/components/TokenTransfer.tsx is incorrectly trying to call an owner() function that doesn't exist.

Current Code (Incorrect)

In TokenTransfer.tsx lines 48-60:

// Check if user is owner
const { data: owner } = useReadContract({
  address: CONTRACT_ADDRESS,
  abi: buenaTokenAbi.abi as any,
  functionName: "owner",
});

const isOwner =
  owner && address
    ? (owner as string).toLowerCase() === address.toLowerCase()
    : false;

Contract Implementation

BuenoToken.sol uses AccessControl with roles:

• MINTER_ROLE - for minting tokens
• DEFAULT_ADMIN_ROLE - for admin functions

There is no owner() function in the contract.

Solution

The code should check if the user has the MINTER_ROLE using hasRole(MINTER_ROLE, address) instead of checking ownership.

Affected Files

• packages/nextjs/app/contract/components/TokenTransfer.tsx (lines 48-60)

References

• Contract: contracts/BuenoToken.sol
• Uses: AccessControl with MINTER_ROLE
• Does NOT use: Ownable