// File: contracts/AIRMIS.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title: AIR Misshattan DROP
/// @author: manifold.xyz

import "./ERC1155Creator.sol";

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//                                                                                                                                //
//                                                                                                                                //
//    .......................................................... 7 ...........................................................    //
//    .......................................................... N ........... ...............................................    //
//    .......................................................... M............................................................    //
//    .......................................................... M ...........................................................    //
//    .......................................................... M ...........................................................    //
//    ......................... ....... .........................M . ......... ............. .................. ..............    //
//    ...........................................................M............................................................    //
//    ...........................................................M............................................................    //
//    .......................................................... M ...........................................................    //
//    .............     . .      .     .            ..        .. M..  ..                     .               .          ......    //
//    ................................ ..... ................... M............ .........  .. ........... .  ... ... ..........    //
//    ..........................................................,M,...........................................................    //
//    ..........................................................$M7........... ................................ ..............    //
//    ..........................................................MMM...........................................................    //
//    ......................................................... MMM...........................................................    //
//    .........................................................8M MO..........................................................    //
//    ......  ....                                             M, ,M.   .         ..      .           .                 ......    //
//    ................   .  ....        .. .       .         .M8.M.8M.                 .  .   ..    ...              .........    //
//     ...... ...... .     ...             .      .       ..  M MMM M ..  .                  .    . ..       .      ..  ......    //
//    ................   .  ..    .... .   . .   .     .. ...M.MMMMM.M...  .   .  ..  .   ..  .. .  ...  .   .  ..  . ........    //
//    ................................ ..... ... ............M~M   MNM........ . ........... ..... ..... ..... .... ..........    //
//    ......................................................M,M.....M,M ......................................................    //
//    ......................................................MM...M,. MM ...... ...............................................    //
//    .................................................... =M  :MMM:  MM .....................................................    //
//    ...................................... ............. M8.MMMMMMM.8M . ..... .......  .. ...... .... ...... ..............    //
//    ......................................MMM ...........M.MMM:.~MMM M...... .....MMM   ....................  ......  ......    //
//    ..................................... MMMMM8. ......M MMM... .MMM M...   . 8MMMMM .... ... ...... .... .. ..............    //
//    ..................... ... ...........MMMMMMMMM:. ...NMMM..?M+. MMMN ..  :MMMMMMMMM.... ... .............. ... ..........    //
//    ....... . ...           . ..  .   .. MMMMMMMMMMMN .MMMM  MMMMM .MMMM .NMMMMMMMMMMM            ..       .          ......    //
//    ....... ..... ....  .     .      ... MMMMMMMMMMMMMMMMM  MMM~MMM  MMMMMMMMMMMMMMMMM  ..      . ...  .              ......    //
//    .....................................MMMM .MMMMMMMMMM  MMM...MMM  MMMMMMMMMM..MMMM  .. ... ....... ...... ... ..........    //
//    .....................................MMMM .. ,MMMMMMMMMMM.....MMMMMMMMMMM, ...MMMM.... ........... ...... ..............    //
//    .....................................MMMM .... .MMMMMMMM ..... MMMMMMMM  .....MMMM........................... ..........    //
//    .....................................MMMM ....... MMMMMMM ... MMMMMMM ........MMMM......................................    //
//    .....................................MMMM..........+MMMMMM . MMMMMM?..........MMMM............. ........................    //
//    ............. ........ MMMM. ........MMMM .......MM.,MMMMMM.MMMMMM,.MM........MMMM........ .MMMM........................    //
//    ...................... MMMMMMMMM,....MMMM........MMM,.MMMMMMMMMMM.,MMM.. .....MMMM.....MMMMMMMMM .......................    //
//    .......................MMMMMMMMMMMMM MMMM. .. ...MMMM .7MMMMMMM7..MMMM.. .....MMMM MMMMMMMMMMMMM . .....................    //
//    ...................... MMMM....:MMMM.MMMM .......MMM ...,MMMMMM... MMM........MMMM.MMMM: ...IMMM .......................    //
//    ............. .... ...  MMM.  . .  . +MMMMM.. .. MMM .. .MMMMM. .. MMM   . .MMMMM?... ......MMM... .  ..  ... ..  ......    //
//    ............. ..........MMMI...  .  . MMMMMMM ...MMM... ..MMM.. ...MMM... MMMMMMM .. ..... 7MMM..  .   .  ..  ..  ......    //
//    ........................ MMM..........MMMMNMMMM  MMM  .....M...... MMM  MMMMNZMMM..... ....MMM .......... ... ..........    //
//    .............   .........MMMN ........:MMM  ZMMM= MM  . ...M.......MM =MMMM  MMMM.........MMMM......  ..................    //
//    ............  ............MMM~ ....... MMM ...ZMMMMMN.......... ..NMMMMMO... MMM ....... .MMM............ ..............    //
//    .......................... MMM...   . .NMMM... .MMMMM ............MMMMM.  ..NMMM. .,  .. MMM ............ ... ..........    //
//    ............................MMM....   . MMMMMMMMM,MMM .  .   .. ..MMM.MMMMMMMMM     ....MMM.. ...  .   .  ..  .   ......    //
//    ............................ MMM........~MM:  MMMMMMMN ......... .MMMMMMM  :MM~ .......MMM............... ..............    //
//    ..............................MMM,.... . MMM.....ZMMMM ......... MMMMZ.. . MMM ......,MMM ........ .  .. ...............    //
//    ...............................MMM=.......MMM...... NM:..... ...:MN..... .OMM.......=MMM................. ..............    //
//    ................................ MMM ......MM ..... . . ....... . .. ...  MM.....  MNM....... .... .....  ... ..........    //
//    ..................................=MM,..... MM.  .. ...  ... ......  ....MM ...  ,MM~. ... ......  ... .  ..  ..........    //
//    ............................  .......MM..... MM ........................MM..  ..MM............... ..  ... ... ..........    //
//    ................................ .... .MM, .. MM .. ............... .. MM  . .MM    .. ... ......  ... . ...  ..........    //
//    .......................................   MO.. IM.....................MM...OM   ...... .................................    //
//    .................. .........  ...... . ... ..~N .M ....  ........... M. N=..... ..  .............. ...... ... ..........    //
//    ................  ..............................  + ............... ,   .. .......  .................... ...............    //
//    ................................................... ............... .... .........  ....................................    //
//    ........................................................................ ................................ ... ..........    //
//    .................................................................... .......... ......................... ..............    //
//    ....................................................... ....... .... ... .. ......   . .......  ........  ..............    //
//    ........................................................................................................................    //
//    ...................................... ... .........  ...... .. ........ . .......  .. ... ....... ....                     //
//      ______  ______ _______  __       __ ______  ______   ______  __    __  ______ ________ ________  ______  __    __         //
//     /      \|      |       \|  \     /  |      \/      \ /      \|  \  |  \/      |        |        \/      \|  \  |  \        //
//    |  $$$$$$\\$$$$$| $$$$$$$| $$\   /  $$\$$$$$|  $$$$$$|  $$$$$$| $$  | $|  $$$$$$\$$$$$$$$\$$$$$$$|  $$$$$$| $$\ | $$        //
//    | $$__| $$ | $$ | $$__| $| $$$\ /  $$$ | $$ | $$___\$| $$___\$| $$__| $| $$__| $$ | $$     | $$  | $$__| $| $$$\| $$        //
//    | $$    $$ | $$ | $$    $| $$$$\  $$$$ | $$  \$$    \ \$$    \| $$    $| $$    $$ | $$     | $$  | $$    $| $$$$\ $$        //
//    | $$$$$$$$ | $$ | $$$$$$$| $$\$$ $$ $$ | $$  _\$$$$$$\_\$$$$$$| $$$$$$$| $$$$$$$$ | $$     | $$  | $$$$$$$| $$\$$ $$        //
//    | $$  | $$_| $$_| $$  | $| $$ \$$$| $$_| $$_|  \__| $|  \__| $| $$  | $| $$  | $$ | $$     | $$  | $$  | $| $$ \$$$$        //
//    | $$  | $|   $$ | $$  | $| $$  \$ | $|   $$ \\$$    $$\$$    $| $$  | $| $$  | $$ | $$     | $$  | $$  | $| $$  \$$$        //
//     \$$   \$$\$$$$$$\$$   \$$\$$      \$$\$$$$$$ \$$$$$$  \$$$$$$ \$$   \$$\$$   \$$  \$$      \$$   \$$   \$$\$$   \$$        //
//                                                                                                                                //
//                                                                                                                                //
//                                                                                                                                //
//                                                                                                                                //
//                                                                                                                                //
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


contract AIRMIS is ERC1155Creator {
    constructor() ERC1155Creator() {}
}

// File: contracts/ERC1155Creator.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/proxy/Proxy.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/StorageSlot.sol";

contract ERC1155Creator is Proxy {

    constructor() {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x142FD5b9d67721EfDA3A5E2E9be47A96c9B724A4;
        Address.functionDelegateCall(
            0x142FD5b9d67721EfDA3A5E2E9be47A96c9B724A4,
            abi.encodeWithSignature("initialize()")
        );
    }

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Returns the current implementation address.
     */
     function implementation() public view returns (address) {
        return _implementation();
    }

    function _implementation() internal override view returns (address) {
        return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }    

}

// File: @openzeppelin/contracts/proxy/Proxy.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)

pragma solidity ^0.8.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    /**
     * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal view virtual returns (address);

    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _fallback() internal virtual {
        _beforeFallback();
        _delegate(_implementation());
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback() external payable virtual {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive() external payable virtual {
        _fallback();
    }

    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     *
     * If overridden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {}
}

// File: @openzeppelin/contracts/utils/Address.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @openzeppelin/contracts/utils/StorageSlot.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
}