ERC-4671: Non-Tradable Tokens Standard

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC165.sol";

interface IERC4671 is IERC165 {
    /// Event emitted when a token `tokenId` is minted for `owner`
    event Minted(address owner, uint256 tokenId);

    /// Event emitted when token `tokenId` of `owner` is revoked
    event Revoked(address owner, uint256 tokenId);

    /// @notice Count all tokens assigned to an owner
    /// @param owner Address for whom to query the balance
    /// @return Number of tokens owned by `owner`
    function balanceOf(address owner) external view returns (uint256);

    /// @notice Get owner of a token
    /// @param tokenId Identifier of the token
    /// @return Address of the owner of `tokenId`
    function ownerOf(uint256 tokenId) external view returns (address);

    /// @notice Check if a token hasn't been revoked
    /// @param tokenId Identifier of the token
    /// @return True if the token is valid, false otherwise
    function isValid(uint256 tokenId) external view returns (bool);

    /// @notice Check if an address owns a valid token in the contract
    /// @param owner Address for whom to check the ownership
    /// @return True if `owner` has a valid token, false otherwise
    function hasValid(address owner) external view returns (bool);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC4671.sol";

interface IERC4671Metadata is IERC4671 {
    /// @return Descriptive name of the tokens in this contract
    function name() external view returns (string memory);

    /// @return An abbreviated name of the tokens in this contract
    function symbol() external view returns (string memory);

    /// @notice URI to query to get the token's metadata
    /// @param tokenId Identifier of the token
    /// @return URI for the token
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC4671.sol";

interface IERC4671Enumerable is IERC4671 {
    /// @return emittedCount Number of tokens emitted
    function emittedCount() external view returns (uint256);

    /// @return holdersCount Number of token holders  
    function holdersCount() external view returns (uint256);

    /// @notice Get the tokenId of a token using its position in the owner's list
    /// @param owner Address for whom to get the token
    /// @param index Index of the token
    /// @return tokenId of the token
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);

    /// @notice Get a tokenId by it's index, where 0 <= index < total()
    /// @param index Index of the token
    /// @return tokenId of the token
    function tokenByIndex(uint256 index) external view returns (uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC4671.sol";

interface IERC4671Delegate is IERC4671 {
    /// @notice Grant one-time minting right to `operator` for `owner`
    /// An allowed operator can call the function to transfer rights.
    /// @param operator Address allowed to mint a token
    /// @param owner Address for whom `operator` is allowed to mint a token
    function delegate(address operator, address owner) external;

    /// @notice Grant one-time minting right to a list of `operators` for a corresponding list of `owners`
    /// An allowed operator can call the function to transfer rights.
    /// @param operators Addresses allowed to mint
    /// @param owners Addresses for whom `operators` are allowed to mint a token
    function delegateBatch(address[] memory operators, address[] memory owners) external;

    /// @notice Mint a token. Caller must have the right to mint for the owner.
    /// @param owner Address for whom the token is minted
    function mint(address owner) external;

    /// @notice Mint tokens to multiple addresses. Caller must have the right to mint for all owners.
    /// @param owners Addresses for whom the tokens are minted
    function mintBatch(address[] memory owners) external;

    /// @notice Get the issuer of a token
    /// @param tokenId Identifier of the token
    /// @return Address who minted `tokenId`
    function issuerOf(uint256 tokenId) external view returns (address);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC4671.sol";

interface IERC4671Consensus is IERC4671 {
    /// @notice Get voters addresses for this consensus contract
    /// @return Addresses of the voters
    function voters() external view returns (address[] memory);

    /// @notice Cast a vote to mint a token for a specific address
    /// @param owner Address for whom to mint the token
    function approveMint(address owner) external;

    /// @notice Cast a vote to revoke a specific token
    /// @param tokenId Identifier of the token to revoke
    function approveRevoke(uint256 tokenId) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC4671.sol";

interface IERC4671Pull is IERC4671 {
    /// @notice Pull a token from the owner wallet to the caller's wallet
    /// @param tokenId Identifier of the token to transfer
    /// @param owner Address that owns tokenId
    /// @param signature Signed data (tokenId, owner, recipient) by the owner of the token
    function pull(uint256 tokenId, address owner, bytes memory signature) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC165.sol";

interface IERC4671Store is IERC165 {
    // Event emitted when a IERC4671Enumerable contract is added to the owner's records
    event Added(address owner, address token);

    // Event emitted when a IERC4671Enumerable contract is removed from the owner's records
    event Removed(address owner, address token);

    /// @notice Add a IERC4671Enumerable contract address to the caller's record
    /// @param token Address of the IERC4671Enumerable contract to add
    function add(address token) external;

    /// @notice Remove a IERC4671Enumerable contract from the caller's record
    /// @param token Address of the IERC4671Enumerable contract to remove
    function remove(address token) external;

    /// @notice Get all the IERC4671Enumerable contracts for a given owner
    /// @param owner Address for which to retrieve the IERC4671Enumerable contracts
    function get(address owner) external view returns (address[] memory);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./ERC4671.sol";

contract EIPCreatorBadge is ERC4671 {
    constructor() ERC4671("EIP Creator Badge", "EIP") {}

    function giveThatManABadge(address owner) external {
        require(_isCreator(), "You must be the contract creator");
        _mint(owner);
    }

    function _baseURI() internal pure override returns (string memory) {
        return "https://eips.ethereum.org/ntt/";
    }
}