// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

/// @notice Contract that enables a single call to call multiple methods on itself.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/Multicallable.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/Multicallable.sol)
abstract contract Multicallable {
    /// @dev Apply `DELEGATECALL` with the current contract to each calldata in `data`,
    /// and store the `abi.encode` formatted results of each `DELEGATECALL` into `results`.
    /// If any of the `DELEGATECALL`s reverts, the entire context is reverted,
    /// and the error is bubbled up.
    ///
    /// This function is deliberately made non-payable to guard against double-spending.
    /// (See: https://www.paradigm.xyz/2021/08/two-rights-might-make-a-wrong)
    ///
    /// For efficiency, this function will directly return the results, terminating the context.
    /// If called internally, it must be called at the end of a function
    /// that returns `(bytes[] memory)`.
    function multicall(bytes[] calldata data) public virtual returns (bytes[] memory) {
        assembly {
            mstore(0x00, 0x20)
            mstore(0x20, data.length) // Store `data.length` into `results`.
            // Early return if no data.
            if iszero(data.length) { return(0x00, 0x40) }

            let results := 0x40
            // `shl` 5 is equivalent to multiplying by 0x20.
            let end := shl(5, data.length)
            // Copy the offsets from calldata into memory.
            calldatacopy(0x40, data.offset, end)
            // Offset into `results`.
            let resultsOffset := end
            // Pointer to the end of `results`.
            end := add(results, end)

            for {} 1 {} {
                // The offset of the current bytes in the calldata.
                let o := add(data.offset, mload(results))
                let memPtr := add(resultsOffset, 0x40)
                // Copy the current bytes from calldata to the memory.
                calldatacopy(
                    memPtr,
                    add(o, 0x20), // The offset of the current bytes' bytes.
                    calldataload(o) // The length of the current bytes.
                )
                if iszero(delegatecall(gas(), address(), memPtr, calldataload(o), 0x00, 0x00)) {
                    // Bubble up the revert if the delegatecall reverts.
                    returndatacopy(0x00, 0x00, returndatasize())
                    revert(0x00, returndatasize())
                }
                // Append the current `resultsOffset` into `results`.
                mstore(results, resultsOffset)
                results := add(results, 0x20)
                // Append the `returndatasize()`, and the return data.
                mstore(memPtr, returndatasize())
                returndatacopy(add(memPtr, 0x20), 0x00, returndatasize())
                // Advance the `resultsOffset` by `returndatasize() + 0x20`,
                // rounded up to the next multiple of 32.
                resultsOffset :=
                    and(add(add(resultsOffset, returndatasize()), 0x3f), 0xffffffffffffffe0)
                if iszero(lt(results, end)) { break }
            }
            return(0x00, add(resultsOffset, 0x40))
        }
    }
}

/// @notice Simple single owner authorization mixin that implements ERC173.
/// @author Modified from Solbase (https://github.com/Sol-DAO/solbase/blob/main/src/auth/Owned.sol)
abstract contract Owned {
    /// -----------------------------------------------------------------------
    /// Events
    /// -----------------------------------------------------------------------

    event OwnershipTransferred(address indexed owner, address indexed newOwner);

    /// -----------------------------------------------------------------------
    /// Custom Errors
    /// -----------------------------------------------------------------------

    error Unauthorized();

    /// -----------------------------------------------------------------------
    /// Ownership Storage
    /// -----------------------------------------------------------------------

    address public owner;

    modifier onlyOwner() virtual {
        if (msg.sender != owner) revert Unauthorized();

        _;
    }

    /// -----------------------------------------------------------------------
    /// Constructor
    /// -----------------------------------------------------------------------

    constructor(address _owner) {
        owner = _owner;

        emit OwnershipTransferred(address(0), _owner);
    }

    /// -----------------------------------------------------------------------
    /// Ownership Logic
    /// -----------------------------------------------------------------------

    function transferOwnership(address newOwner)
        public
        payable
        virtual
        onlyOwner
    {
        owner = newOwner;

        emit OwnershipTransferred(msg.sender, newOwner);
    }

    /// -----------------------------------------------------------------------
    /// ERC165 Logic
    /// -----------------------------------------------------------------------

    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        returns (bool)
    {
        // ERC165 Interface ID for ERC173.
        return interfaceId == 0x7f5828d0;
    }
}

/// @notice ERC1155 interface to receive tokens.
/// @author Modified from Solbase (https://github.com/Sol-DAO/solbase/blob/main/src/tokens/ERC1155/ERC1155.sol)
abstract contract ERC1155TokenReceiver {
    function onERC1155Received(
        address,
        address,
        uint256,
        uint256,
        bytes calldata
    ) public payable virtual returns (bytes4) {
        return this.onERC1155Received.selector;
    }

    function onERC1155BatchReceived(
        address,
        address,
        uint256[] calldata,
        uint256[] calldata,
        bytes calldata
    ) public payable virtual returns (bytes4) {
        return this.onERC1155BatchReceived.selector;
    }
}

/// @notice ERC1155 minting function.
abstract contract ERC1155Mint {
    function mint(
        address to,
        uint256 id,
        uint256 amount,
        bytes calldata data
    ) public payable virtual;
}

/// @dev The ETH transfer has failed.
error ETHTransferFailed();

function safeTransferETH(address to, uint256 amount) {
    /// @solidity memory-safe-assembly
    assembly {
        // Transfer the ETH and check if it succeeded or not.
        if iszero(call(gas(), to, amount, 0, 0, 0, 0)) {
            // Store the function selector of `ETHTransferFailed()`.
            mstore(0x00, 0xb12d13eb)
            // Revert with (offset, size).
            revert(0x1c, 0x04)
        }
    }
}

/// @notice NANI maker facility.
/// @author NANI
contract NaniMaker is Multicallable, Owned(tx.origin), ERC1155TokenReceiver {
    event MintSet(uint256 indexed id, bool on);

    error Inactive();

    ERC1155Mint internal constant NANI = ERC1155Mint(0x379569b497eE6fdEb6f6128B9f59EfB49B85e3A2);

    mapping(uint256 => bool) public active;

    constructor() payable {}

    function mintNani(uint256 id) public payable virtual {
        if (!active[id]) revert Inactive();

        safeTransferETH(address(NANI), 0.000999 ether);

        NANI.mint(msg.sender, 0, msg.value, "");

        NANI.mint(msg.sender, id, 1, "");
    }

    function setMint(uint256 id, bool on) public payable virtual onlyOwner {
        active[id] = on;

        emit MintSet(id, on);
    }
}