Contract 0x1A7d6ed890b6C284271AD27E7AbE8Fb5211D0739 6

 
Txn Hash Method
Block
From
To
Value [Txn Fee]
0xff740af934e43a68f9310eae9dab9e0d2114dea23f096868329b90a0018d905bBuy Token519201502022-12-05 14:42:233 mins ago0x6a5f44d24dca8417db339203d9e07d23321f030b IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d073922 FTM0.01735909
0x7a820ced57f29dae0806c833f560497ebc14b21d8ff35ec2b030bbb8fbf4963dBuy Token519201382022-12-05 14:42:013 mins ago0x246da6261314a6cc5573ad71edb21bc43b9ca8f1 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d073917 FTM0.031042944
0x66d7d2e3acbd8116e84ce52a22ae0f9a407d79c6b8458014c209df1a5998eb6eBuy Token519201302022-12-05 14:41:503 mins ago0x246da6261314a6cc5573ad71edb21bc43b9ca8f1 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d073916 FTM0.01940328
0x6390419cdf079b94263528d1674484156281b6f54b3868de91cd45a9cd57d186List Token519198562022-12-05 14:34:1811 mins ago0xb226c3598b5ca028b12b3eec1aea5fec142d9ab5 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.040755024
0xddbe205e323e996aedae9ff4bd4c67f463aaf5e5a021b8d891566a3945e69662List Token519188762022-12-05 13:55:1950 mins ago0x418ff9fad58315bb799eb50c83c2ecee9ee62788 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.000916918546
0xafbcb157c8797fc6f6f454e3c2b1493810502f760cc3ec4e832a2c370c8a2e0dList Token519188452022-12-05 13:54:1151 mins ago0x418ff9fad58315bb799eb50c83c2ecee9ee62788 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.001203979597
0x381edc32a5df312807e85fa1a739830f9bcfd035570cefbff77961679c77252fList Token519188282022-12-05 13:53:4752 mins ago0x418ff9fad58315bb799eb50c83c2ecee9ee62788 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.002233533753
0x897e02efb2dcb26fff20ce75e5864bd4cf3f94eb2d17941fe0bdb00ddba1b863List Token519188192022-12-05 13:53:3052 mins ago0x418ff9fad58315bb799eb50c83c2ecee9ee62788 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.003100181608
0x07569d55bfbac2b39d533df6123eb854673c4e54af9692962f4141e6ee6d4c20List Token519188152022-12-05 13:53:1852 mins ago0x418ff9fad58315bb799eb50c83c2ecee9ee62788 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.002763334947
0x20beebeb256732ce53b1f82f582ae0842c3448aca3fb264245b3b37107e8851eList Token519187722022-12-05 13:51:0354 mins ago0x418ff9fad58315bb799eb50c83c2ecee9ee62788 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.00213082172
0xd0bba4ef363d11e80b783cb6187f0bfba6380debaf01e1ecb88c903c5f109fe2List Token519187362022-12-05 13:49:0656 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.015402706242
0xa4e5ff7975e851938688c65946bc661014cb54a60370750474ef596051bc4a4fList Token519186252022-12-05 13:43:511 hr 1 min ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.002286290954
0x6f292416110662cc25d41ea775db37ff72ec68b14ae58dd1481538172fa04164List Token519186172022-12-05 13:43:311 hr 2 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.016664129722
0x17d26dd349bd1af7bdbf77b5d844dfaab91c0ab5d8408cf459a85ce1cad51482List Token519186022022-12-05 13:42:521 hr 2 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.030519229061
0x63ad90e2b71247d87717bf53155f503bc01f8726a6669d92417f69120b848e9bList Token519185972022-12-05 13:42:081 hr 3 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.008181929378
0x38ce639fe2c6b09437dfe7e8edbc64b824eea54bb3ec089fc97288e29f17bd94List Token519185922022-12-05 13:41:591 hr 3 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.030575669918
0x3be4bf86fab5eee2bd4c516aa6c4d538284d1cadf426d9f3d750b549f4ee8ee9List Token519185872022-12-05 13:41:471 hr 4 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.024362961919
0xc68331513547b5861cee655cc6b844af5a4988bc9d6d67dae0031f57ae805d3bList Token519185822022-12-05 13:41:341 hr 4 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.003941563058
0x99ad2a61eaefed8a0275e66dc467032e3b15ceb59a6e7928ed7c5144bae9d0d8List Token519185762022-12-05 13:41:051 hr 4 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.020528242683
0x3cb2720c4a30a26275c8c4736678974a96919f402ea7a74404237e81cdf07f44List Token519185742022-12-05 13:40:591 hr 4 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.005489935904
0x5b95feac0ba3b392f63beaf9072317241bee938ec9d8d5964c9be003177ccec1List Token519185722022-12-05 13:40:511 hr 4 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.014572986773
0x8203b00375e4ddda409822e5207ee6ad3f11dc1142c686a78a8f2ca1facc51b5List Token519185592022-12-05 13:40:051 hr 5 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.019373897158
0x7396a442325d28f325e9a53819ab0a574f00001f5df8384e988ffff9230eff7cList Token519185402022-12-05 13:39:201 hr 6 mins ago0x228baf69cdd1290d98d9590e772cbd7f1f75ff66 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.040388573919
0x537495e1395bc3e2a9000626b4f952f907c7ef503f47372e22c793e843efce54Buy Token519182862022-12-05 13:25:161 hr 20 mins ago0x750872cb963321506fdf4f037240e821ac39cbfd IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d073920 FTM0.034870176
0xfe06216a444908bbb457f599938ba4c6e937e3aad91063ebf3c4503b084b8c03List Token519173252022-12-05 12:41:042 hrs 4 mins ago0x023e7a11b3e348fedd26f97024047e2d9446d186 IN  0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390 FTM0.017357136
[ Download CSV Export 
Latest 25 internal transaction
Parent Txn Hash Block From To Value
0xff740af934e43a68f9310eae9dab9e0d2114dea23f096868329b90a0018d905b519201502022-12-05 14:42:233 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x49dffad9138a1e09dcd428af30e4988b5127ee601.412844036697247706 FTM
0xff740af934e43a68f9310eae9dab9e0d2114dea23f096868329b90a0018d905b519201502022-12-05 14:42:233 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x1d28577186e6c3fa278b844b578d420d97b9b1f90.403669724770642201 FTM
0xff740af934e43a68f9310eae9dab9e0d2114dea23f096868329b90a0018d905b519201502022-12-05 14:42:233 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x9a411e810cc44b7df4e3a50c436404c01c2e086620.183486238532110093 FTM
0x7a820ced57f29dae0806c833f560497ebc14b21d8ff35ec2b030bbb8fbf4963d519201382022-12-05 14:42:013 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x842ae9ecea1c08382710483aa61fb8c738e0189e0.944444444444444444 FTM
0x7a820ced57f29dae0806c833f560497ebc14b21d8ff35ec2b030bbb8fbf4963d519201382022-12-05 14:42:013 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x1d28577186e6c3fa278b844b578d420d97b9b1f90.314814814814814814 FTM
0x7a820ced57f29dae0806c833f560497ebc14b21d8ff35ec2b030bbb8fbf4963d519201382022-12-05 14:42:013 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x1c03237ac8dd2b1a000362170d53724deccc1ef015.740740740740740742 FTM
0x66d7d2e3acbd8116e84ce52a22ae0f9a407d79c6b8458014c209df1a5998eb6e519201302022-12-05 14:41:503 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x842ae9ecea1c08382710483aa61fb8c738e0189e0.888888888888888888 FTM
0x66d7d2e3acbd8116e84ce52a22ae0f9a407d79c6b8458014c209df1a5998eb6e519201302022-12-05 14:41:503 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x1d28577186e6c3fa278b844b578d420d97b9b1f90.296296296296296296 FTM
0x66d7d2e3acbd8116e84ce52a22ae0f9a407d79c6b8458014c209df1a5998eb6e519201302022-12-05 14:41:503 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x30f662d7b32be999da54d82027c171261bc50e9d14.814814814814814816 FTM
0x537495e1395bc3e2a9000626b4f952f907c7ef503f47372e22c793e843efce54519182862022-12-05 13:25:161 hr 20 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d0739BabyChimpGang: Deployer0.934579439252336448 FTM
0x537495e1395bc3e2a9000626b4f952f907c7ef503f47372e22c793e843efce54519182862022-12-05 13:25:161 hr 20 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x1d28577186e6c3fa278b844b578d420d97b9b1f90.373831775700934579 FTM
0x537495e1395bc3e2a9000626b4f952f907c7ef503f47372e22c793e843efce54519182862022-12-05 13:25:161 hr 20 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x7f732a3e537742dca8926626d5783e5131ac620d18.691588785046728973 FTM
0x68e901a645d9613287fd27df2707258565d418338a0d849c1899938c33ef5371519170152022-12-05 12:25:482 hrs 20 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390xec3fab4bbaa7e441e220626b305e188f9fc360ca0.890410958904109589 FTM
0x68e901a645d9613287fd27df2707258565d418338a0d849c1899938c33ef5371519170152022-12-05 12:25:482 hrs 20 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x1d28577186e6c3fa278b844b578d420d97b9b1f90.237442922374429223 FTM
0x68e901a645d9613287fd27df2707258565d418338a0d849c1899938c33ef5371519170152022-12-05 12:25:482 hrs 20 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x603267cffd1c90bfd0b5692ab5e71b4e90a4403e11.872146118721461188 FTM
0x3df8e095fa33804879ecc5d15b490db088dab74bc96adcf33d0934fca76ea015519167542022-12-05 12:12:402 hrs 33 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x948e422da3bd457289c526c8be6319949411bd5a3.047945205479452054 FTM
0x3df8e095fa33804879ecc5d15b490db088dab74bc96adcf33d0934fca76ea015519167542022-12-05 12:12:402 hrs 33 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x1d28577186e6c3fa278b844b578d420d97b9b1f90.812785388127853881 FTM
0x3df8e095fa33804879ecc5d15b490db088dab74bc96adcf33d0934fca76ea015519167542022-12-05 12:12:402 hrs 33 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x3a335085e6d79a0a3bee0fddbd3b932e61d0d8a040.639269406392694065 FTM
0xd2893e5b6eef51a954bdafbee54e1b4bb12023c8ec56de95531e3ffd5741f8ce519094152022-12-05 7:37:137 hrs 8 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390xaebe3478d44e32d2c889a091ab648675d9382dfb2.222222222222222222 FTM
0xd2893e5b6eef51a954bdafbee54e1b4bb12023c8ec56de95531e3ffd5741f8ce519094152022-12-05 7:37:137 hrs 8 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x1d28577186e6c3fa278b844b578d420d97b9b1f90.74074074074074074 FTM
0xd2893e5b6eef51a954bdafbee54e1b4bb12023c8ec56de95531e3ffd5741f8ce519094152022-12-05 7:37:137 hrs 8 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x30b2c8c593944b6bdb58aca704545747dfc11c5637.037037037037037038 FTM
0x52e442e11ec735d6aea9504d49abdd4be764c7e4ffa6140952df9bd21ce53ea8519086772022-12-05 7:17:367 hrs 28 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x7abcd5a3f77553a87f6a98b3d49bd559ae8b83299.444444444444444444 FTM
0x52e442e11ec735d6aea9504d49abdd4be764c7e4ffa6140952df9bd21ce53ea8519086772022-12-05 7:17:367 hrs 28 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x1d28577186e6c3fa278b844b578d420d97b9b1f93.148148148148148148 FTM
0x52e442e11ec735d6aea9504d49abdd4be764c7e4ffa6140952df9bd21ce53ea8519086772022-12-05 7:17:367 hrs 28 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d07390x248d4115279ef684db2e66236aeb9aaa7fba84e5157.407407407407407408 FTM
0x109903c8d7c1b9eb6ef3cc488891177a8fe0ab85a217730139f46afed0d42fb1519062902022-12-05 6:20:398 hrs 25 mins ago 0x1a7d6ed890b6c284271ad27e7abe8fb5211d0739Wovven: Deployer0.821917808219178082 FTM
[ Download CSV Export 
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
NFTKEYMarketplaceV2

Compiler Version
v0.8.9+commit.e5eed63a

Optimization Enabled:
Yes with 999999 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 13 : NFTKEYMarketplaceV2.sol
// SPDX-License-Identifier: AGPL-3.0-or-later

pragma solidity =0.8.9;
pragma abicoder v2;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "./interface/INFTKEYMarketplaceV2.sol";
import "./NFTKEYMarketplaceRoyalty.sol";

/**
 * @title NFTKEY Marketplace contract V2
 * Note: Payment tokens usually is the chain native coin's wrapped token, e.g. WETH, WBNB
 */
contract NFTKEYMarketplaceV2 is
    INFTKEYMarketplaceV2,
    Ownable,
    NFTKEYMarketplaceRoyalty,
    ReentrancyGuard
{
    using Address for address;
    using EnumerableSet for EnumerableSet.UintSet;
    using EnumerableSet for EnumerableSet.AddressSet;
    using SafeERC20 for IERC20;

    constructor(address _paymentTokenAddress) {
        _paymentToken = IERC20(_paymentTokenAddress);
    }

    IERC20 private immutable _paymentToken;

    bool private _isTradingEnabled = true;
    uint8 private _serviceFeeFraction = 20;
    uint256 private _actionTimeOutRangeMin = 1800; // 30 mins
    uint256 private _actionTimeOutRangeMax = 31536000; // One year - This can extend by owner is contract is working smoothly

    mapping(address => ERC721Market) private _erc721Market;

    /**
     * @dev only if listing and bid is enabled
     * This is to help contract migration in case of upgrading contract
     */
    modifier onlyTradingOpen() {
        require(_isTradingEnabled, "Listing and bid are not enabled");
        _;
    }

    /**
     * @dev only if the entered timestamp is within the allowed range
     * This helps to not list or bid for too short or too long period of time
     */
    modifier onlyAllowedExpireTimestamp(uint256 expireTimestamp) {
        require(
            expireTimestamp - block.timestamp >= _actionTimeOutRangeMin,
            "Please enter a longer period of time"
        );
        require(
            expireTimestamp - block.timestamp <= _actionTimeOutRangeMax,
            "Please enter a shorter period of time"
        );
        _;
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-listToken}.
     * The timestamp set needs to be in the allowed range
     * Listing must be valid
     */
    function listToken(
        address erc721Address,
        uint256 tokenId,
        uint256 value,
        uint256 expireTimestamp
    )
        external
        override
        onlyTradingOpen
        onlyAllowedExpireTimestamp(expireTimestamp)
    {
        Listing memory listing = Listing({
            tokenId: tokenId,
            value: value,
            seller: msg.sender,
            expireTimestamp: expireTimestamp
        });

        require(
            _isListingValid(erc721Address, listing),
            "Listing is not valid"
        );

        _erc721Market[erc721Address].listings[tokenId] = listing;
        _erc721Market[erc721Address].tokenIdWithListing.add(tokenId);

        emit TokenListed(erc721Address, tokenId, listing);
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-delistToken}.
     * msg.sender must be the seller of the listing record
     */
    function delistToken(address erc721Address, uint256 tokenId)
        external
        override
    {
        require(
            _erc721Market[erc721Address].listings[tokenId].seller == msg.sender,
            "Only token seller can delist token"
        );

        emit TokenDelisted(
            erc721Address,
            tokenId,
            _erc721Market[erc721Address].listings[tokenId]
        );

        _delistToken(erc721Address, tokenId);
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-buyToken}.
     * Must have a valid listing
     * msg.sender must not the owner of token
     * msg.value must be at least sell price plus fees
     */
    function buyToken(address erc721Address, uint256 tokenId)
        external
        payable
        override
        nonReentrant
    {
        Listing memory listing = _erc721Market[erc721Address].listings[tokenId];
        require(
            _isListingValid(erc721Address, listing),
            "Token is not for sale"
        );
        require(
            !_isTokenOwner(erc721Address, tokenId, msg.sender),
            "Token owner can't buy their own token"
        );
        require(
            msg.value >= listing.value,
            "The value send is below sale price"
        );

        (uint256 _serviceFee, uint256 _royaltyFee) = _calculateFees(
            erc721Address,
            listing.value
        );

        Address.sendValue(
            payable(listing.seller),
            msg.value - _serviceFee - _royaltyFee
        );
        Address.sendValue(payable(owner()), _serviceFee);

        address _royaltyRecipient = royalty(erc721Address).recipient;
        if (_royaltyRecipient != address(0) && _royaltyFee > 0) {
            Address.sendValue(payable(_royaltyRecipient), _royaltyFee);
        }

        // Send token to buyer
        emit TokenBought({
            erc721Address: erc721Address,
            tokenId: tokenId,
            buyer: msg.sender,
            listing: listing,
            serviceFee: _serviceFee,
            royaltyFee: _royaltyFee
        });

        IERC721(erc721Address).safeTransferFrom(
            listing.seller,
            msg.sender,
            tokenId
        );

        // Remove token listing
        _delistToken(erc721Address, tokenId);
        _removeBidOfBidder(erc721Address, tokenId, msg.sender);
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-enterBidForToken}.
     * People can only enter bid if bid is valid
     */
    function enterBidForToken(
        address erc721Address,
        uint256 tokenId,
        uint256 value,
        uint256 expireTimestamp
    )
        external
        override
        onlyTradingOpen
        onlyAllowedExpireTimestamp(expireTimestamp)
    {
        Bid memory bid = Bid(tokenId, value, msg.sender, expireTimestamp);

        require(_isBidValid(erc721Address, bid), "Bid is not valid");

        _erc721Market[erc721Address].tokenIdWithBid.add(tokenId);
        _erc721Market[erc721Address].bids[tokenId].bidders.add(msg.sender);
        _erc721Market[erc721Address].bids[tokenId].bids[msg.sender] = bid;

        emit TokenBidEntered(erc721Address, tokenId, bid);
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-withdrawBidForToken}.
     * There must be a bid exists
     * remove this bid record
     */
    function withdrawBidForToken(address erc721Address, uint256 tokenId)
        external
        override
    {
        Bid memory bid = _erc721Market[erc721Address].bids[tokenId].bids[
            msg.sender
        ];
        require(
            bid.bidder == msg.sender,
            "This address doesn't have bid on this token"
        );

        emit TokenBidWithdrawn(erc721Address, tokenId, bid);
        _removeBidOfBidder(erc721Address, tokenId, msg.sender);
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-acceptBidForToken}.
     * Must be owner of this token
     * Must have approved this contract to transfer token
     * Must have a valid existing bid that matches
     */
    function acceptBidForToken(
        address erc721Address,
        uint256 tokenId,
        address bidder,
        uint256 value
    ) external override nonReentrant {
        require(
            _isTokenOwner(erc721Address, tokenId, msg.sender),
            "Only token owner can accept bid of token"
        );
        require(
            _isTokenApproved(erc721Address, tokenId) ||
                _isAllTokenApproved(erc721Address, msg.sender),
            "The token is not approved to transfer by the contract"
        );

        Bid memory existingBid = getBidderTokenBid(
            erc721Address,
            tokenId,
            bidder
        );
        require(
            existingBid.tokenId == tokenId &&
                existingBid.value == value &&
                existingBid.bidder == bidder,
            "This token doesn't have a matching bid"
        );

        address _royaltyRecipient = royalty(erc721Address).recipient;
        (uint256 _serviceFee, uint256 _royaltyFee) = _calculateFees(
            erc721Address,
            existingBid.value
        );

        _paymentToken.safeTransferFrom({
            from: existingBid.bidder,
            to: msg.sender,
            value: existingBid.value - _serviceFee - _royaltyFee
        });
        _paymentToken.safeTransferFrom({
            from: existingBid.bidder,
            to: owner(),
            value: _serviceFee
        });
        if (_royaltyRecipient != address(0) && _royaltyFee > 0) {
            _paymentToken.safeTransferFrom({
                from: existingBid.bidder,
                to: _royaltyRecipient,
                value: _royaltyFee
            });
        }

        IERC721(erc721Address).safeTransferFrom({
            from: msg.sender,
            to: existingBid.bidder,
            tokenId: tokenId
        });

        emit TokenBidAccepted({
            erc721Address: erc721Address,
            tokenId: tokenId,
            seller: msg.sender,
            bid: existingBid,
            serviceFee: _serviceFee,
            royaltyFee: _royaltyFee
        });

        // Remove token listing
        _delistToken(erc721Address, tokenId);
        _removeBidOfBidder(erc721Address, tokenId, existingBid.bidder);
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-isTradingEnabled}.
     */
    function isTradingEnabled() external view override returns (bool) {
        return _isTradingEnabled;
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-getTokenListing}.
     */
    function getTokenListing(address erc721Address, uint256 tokenId)
        public
        view
        override
        returns (Listing memory validListing)
    {
        Listing memory listing = _erc721Market[erc721Address].listings[tokenId];
        if (_isListingValid(erc721Address, listing)) {
            validListing = listing;
        }
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-numTokenListings}.
     */
    function numTokenListings(address erc721Address)
        public
        view
        override
        returns (uint256)
    {
        return _erc721Market[erc721Address].tokenIdWithListing.length();
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-getTokenListings}.
     */
    function getTokenListings(
        address erc721Address,
        uint256 from,
        uint256 size
    ) public view override returns (Listing[] memory listings) {
        uint256 listingsCount = numTokenListings(erc721Address);

        if (from < listingsCount && size > 0) {
            uint256 querySize = size;
            if ((from + size) > listingsCount) {
                querySize = listingsCount - from;
            }
            listings = new Listing[](querySize);
            for (uint256 i = 0; i < querySize; i++) {
                uint256 tokenId = _erc721Market[erc721Address]
                    .tokenIdWithListing
                    .at(i + from);
                Listing memory listing = _erc721Market[erc721Address].listings[
                    tokenId
                ];
                if (_isListingValid(erc721Address, listing)) {
                    listings[i] = listing;
                }
            }
        }
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-getBidderTokenBid}.
     */
    function getBidderTokenBid(
        address erc721Address,
        uint256 tokenId,
        address bidder
    ) public view override returns (Bid memory validBid) {
        Bid memory bid = _erc721Market[erc721Address].bids[tokenId].bids[
            bidder
        ];
        if (_isBidValid(erc721Address, bid)) {
            validBid = bid;
        }
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-getTokenBids}.
     */
    function getTokenBids(address erc721Address, uint256 tokenId)
        external
        view
        override
        returns (Bid[] memory bids)
    {
        uint256 bidderCount = _erc721Market[erc721Address]
            .bids[tokenId]
            .bidders
            .length();

        bids = new Bid[](bidderCount);
        for (uint256 i; i < bidderCount; i++) {
            address bidder = _erc721Market[erc721Address]
                .bids[tokenId]
                .bidders
                .at(i);
            Bid memory bid = _erc721Market[erc721Address].bids[tokenId].bids[
                bidder
            ];
            if (_isBidValid(erc721Address, bid)) {
                bids[i] = bid;
            }
        }
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-getTokenHighestBid}.
     */
    function getTokenHighestBid(address erc721Address, uint256 tokenId)
        public
        view
        override
        returns (Bid memory highestBid)
    {
        highestBid = Bid(tokenId, 0, address(0), 0);
        uint256 bidderCount = _erc721Market[erc721Address]
            .bids[tokenId]
            .bidders
            .length();
        for (uint256 i; i < bidderCount; i++) {
            address bidder = _erc721Market[erc721Address]
                .bids[tokenId]
                .bidders
                .at(i);
            Bid memory bid = _erc721Market[erc721Address].bids[tokenId].bids[
                bidder
            ];
            if (
                _isBidValid(erc721Address, bid) && bid.value > highestBid.value
            ) {
                highestBid = bid;
            }
        }
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-numTokenWithBids}.
     */
    function numTokenWithBids(address erc721Address)
        public
        view
        override
        returns (uint256)
    {
        return _erc721Market[erc721Address].tokenIdWithBid.length();
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-getTokenHighestBids}.
     */
    function getTokenHighestBids(
        address erc721Address,
        uint256 from,
        uint256 size
    ) public view override returns (Bid[] memory highestBids) {
        uint256 tokenCount = numTokenWithBids(erc721Address);

        if (from < tokenCount && size > 0) {
            uint256 querySize = size;
            if ((from + size) > tokenCount) {
                querySize = tokenCount - from;
            }
            highestBids = new Bid[](querySize);
            for (uint256 i = 0; i < querySize; i++) {
                highestBids[i] = getTokenHighestBid({
                    erc721Address: erc721Address,
                    tokenId: _erc721Market[erc721Address].tokenIdWithBid.at(
                        i + from
                    )
                });
            }
        }
    }

    function getBidderBids(
        address erc721Address,
        address bidder,
        uint256 from,
        uint256 size
    ) external view override returns (Bid[] memory bidderBids) {
        uint256 tokenCount = numTokenWithBids(erc721Address);

        if (from < tokenCount && size > 0) {
            uint256 querySize = size;
            if ((from + size) > tokenCount) {
                querySize = tokenCount - from;
            }
            bidderBids = new Bid[](querySize);
            for (uint256 i = 0; i < querySize; i++) {
                bidderBids[i] = getBidderTokenBid({
                    erc721Address: erc721Address,
                    tokenId: _erc721Market[erc721Address].tokenIdWithBid.at(
                        i + from
                    ),
                    bidder: bidder
                });
            }
        }
    }

    /**
     * @dev check if the account is the owner of this erc721 token
     */
    function _isTokenOwner(
        address erc721Address,
        uint256 tokenId,
        address account
    ) private view returns (bool) {
        IERC721 _erc721 = IERC721(erc721Address);
        try _erc721.ownerOf(tokenId) returns (address tokenOwner) {
            return tokenOwner == account;
        } catch {
            return false;
        }
    }

    /**
     * @dev check if this contract has approved to transfer this erc721 token
     */
    function _isTokenApproved(address erc721Address, uint256 tokenId)
        private
        view
        returns (bool)
    {
        IERC721 _erc721 = IERC721(erc721Address);
        try _erc721.getApproved(tokenId) returns (address tokenOperator) {
            return tokenOperator == address(this);
        } catch {
            return false;
        }
    }

    /**
     * @dev check if this contract has approved to all of this owner's erc721 tokens
     */
    function _isAllTokenApproved(address erc721Address, address owner)
        private
        view
        returns (bool)
    {
        IERC721 _erc721 = IERC721(erc721Address);
        return _erc721.isApprovedForAll(owner, address(this));
    }

    /**
     * @dev Check if a listing is valid or not
     * The seller must be the owner
     * The seller must have give this contract allowance
     * The sell price must be more than 0
     * The listing mustn't be expired
     */
    function _isListingValid(address erc721Address, Listing memory listing)
        private
        view
        returns (bool isValid)
    {
        if (
            _isTokenOwner(erc721Address, listing.tokenId, listing.seller) &&
            (_isTokenApproved(erc721Address, listing.tokenId) ||
                _isAllTokenApproved(erc721Address, listing.seller)) &&
            listing.value > 0 &&
            listing.expireTimestamp > block.timestamp
        ) {
            isValid = true;
        }
    }

    /**
     * @dev Check if an bid is valid or not
     * Bidder must not be the owner
     * Bidder must have enough balance same or more than bid price
     * Bidder must give the contract allowance same or more than bid price
     * Bid price must > 0
     * Bid mustn't been expired
     */
    function _isBidValid(address erc721Address, Bid memory bid)
        private
        view
        returns (bool isValid)
    {
        if (
            !_isTokenOwner(erc721Address, bid.tokenId, bid.bidder) &&
            _paymentToken.allowance(bid.bidder, address(this)) >= bid.value &&
            _paymentToken.balanceOf(bid.bidder) >= bid.value &&
            bid.value > 0 &&
            bid.expireTimestamp > block.timestamp
        ) {
            isValid = true;
        }
    }

    /**
     * @dev delist a token - remove token id record and remove listing from mapping
     * @param tokenId erc721 token Id
     */
    function _delistToken(address erc721Address, uint256 tokenId) private {
        if (_erc721Market[erc721Address].tokenIdWithListing.contains(tokenId)) {
            delete _erc721Market[erc721Address].listings[tokenId];
            _erc721Market[erc721Address].tokenIdWithListing.remove(tokenId);
        }
    }

    /**
     * @dev remove a bid of a bidder
     * @param tokenId erc721 token Id
     * @param bidder bidder address
     */
    function _removeBidOfBidder(
        address erc721Address,
        uint256 tokenId,
        address bidder
    ) private {
        if (
            _erc721Market[erc721Address].bids[tokenId].bidders.contains(bidder)
        ) {
            // Step 1: delete the bid and the address
            delete _erc721Market[erc721Address].bids[tokenId].bids[bidder];
            _erc721Market[erc721Address].bids[tokenId].bidders.remove(bidder);

            // Step 2: if no bid left
            if (
                _erc721Market[erc721Address].bids[tokenId].bidders.length() == 0
            ) {
                _erc721Market[erc721Address].tokenIdWithBid.remove(tokenId);
            }
        }
    }

    /**
     * @dev Calculate service fee, royalty fee and left value
     * @param value bidder address
     */
    function _calculateFees(address erc721Address, uint256 value)
        private
        view
        returns (uint256 _serviceFee, uint256 _royaltyFee)
    {
        uint256 _royaltyFeeFraction = royalty(erc721Address).feeFraction;
        uint256 _baseFractions = 1000 +
            _serviceFeeFraction +
            _royaltyFeeFraction;

        _serviceFee = (value * _serviceFeeFraction) / _baseFractions;
        _royaltyFee = (value * _royaltyFeeFraction) / _baseFractions;
    }

    /**
     * @dev Enable to disable Bids and Listing
     */
    function changeMarketplaceStatus(bool enabled) external onlyOwner {
        _isTradingEnabled = enabled;
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-actionTimeOutRangeMin}.
     */
    function actionTimeOutRangeMin() external view override returns (uint256) {
        return _actionTimeOutRangeMin;
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-actionTimeOutRangeMax}.
     */
    function actionTimeOutRangeMax() external view override returns (uint256) {
        return _actionTimeOutRangeMax;
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-paymentToken}.
     */
    function paymentToken() external view override returns (address) {
        return address(_paymentToken);
    }

    /**
     * @dev Change minimum listing and bid time range
     */
    function changeMinActionTimeLimit(uint256 timeInSec) external onlyOwner {
        _actionTimeOutRangeMin = timeInSec;
    }

    /**
     * @dev Change maximum listing and bid time range
     */
    function changeMaxActionTimeLimit(uint256 timeInSec) external onlyOwner {
        _actionTimeOutRangeMax = timeInSec;
    }

    /**
     * @dev See {INFTKEYMarketplaceV2-serviceFee}.
     */
    function serviceFee() external view override returns (uint8) {
        return _serviceFeeFraction;
    }

    /**
     * @dev Change withdrawal fee percentage.
     * @param serviceFeeFraction_ Fraction of withdrawal fee based on 1000
     */
    function changeSeriveFee(uint8 serviceFeeFraction_) external onlyOwner {
        require(
            serviceFeeFraction_ <= 25,
            "Attempt to set percentage higher than 2.5%."
        );

        _serviceFeeFraction = serviceFeeFraction_;
    }
}

File 2 of 13 : INFTKEYMarketplaceV2.sol
// SPDX-License-Identifier: AGPL-3.0-or-later

pragma solidity =0.8.9;
pragma abicoder v2;

import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

interface INFTKEYMarketplaceV2 {
    struct Listing {
        uint256 tokenId;
        uint256 value;
        address seller;
        uint256 expireTimestamp;
    }

    struct Bid {
        uint256 tokenId;
        uint256 value;
        address bidder;
        uint256 expireTimestamp;
    }

    struct TokenBids {
        EnumerableSet.AddressSet bidders;
        mapping(address => Bid) bids;
    }

    struct ERC721Market {
        EnumerableSet.UintSet tokenIdWithListing;
        mapping(uint256 => Listing) listings;
        EnumerableSet.UintSet tokenIdWithBid;
        mapping(uint256 => TokenBids) bids;
    }

    event TokenListed(
        address indexed erc721Address,
        uint256 indexed tokenId,
        Listing listing
    );
    event TokenDelisted(
        address indexed erc721Address,
        uint256 indexed tokenId,
        Listing listing
    );
    event TokenBidEntered(
        address indexed erc721Address,
        uint256 indexed tokenId,
        Bid bid
    );
    event TokenBidWithdrawn(
        address indexed erc721Address,
        uint256 indexed tokenId,
        Bid bid
    );
    event TokenBought(
        address indexed erc721Address,
        uint256 indexed tokenId,
        address indexed buyer,
        Listing listing,
        uint256 serviceFee,
        uint256 royaltyFee
    );
    event TokenBidAccepted(
        address indexed erc721Address,
        uint256 indexed tokenId,
        address indexed seller,
        Bid bid,
        uint256 serviceFee,
        uint256 royaltyFee
    );

    /**
     * @dev List token for sale
     * @param tokenId erc721 token Id
     * @param value min price to sell the token
     * @param expireTimestamp when would this listing expire
     */
    function listToken(
        address erc721Address,
        uint256 tokenId,
        uint256 value,
        uint256 expireTimestamp
    ) external;

    /**
     * @dev Delist token for sale
     * @param tokenId erc721 token Id
     */
    function delistToken(address erc721Address, uint256 tokenId) external;

    /**
     * @dev Buy token
     * @param tokenId erc721 token Id
     */
    function buyToken(address erc721Address, uint256 tokenId) external payable;

    /**
     * @dev Enter bid for token
     * @param tokenId erc721 token Id
     * @param value price in payment token
     * @param expireTimestamp when would this bid expire
     */
    function enterBidForToken(
        address erc721Address,
        uint256 tokenId,
        uint256 value,
        uint256 expireTimestamp
    ) external;

    /**
     * @dev Withdraw bid for token
     * @param tokenId erc721 token Id
     */
    function withdrawBidForToken(address erc721Address, uint256 tokenId)
        external;

    /**
     * @dev Accept a bid of token from a bidder
     * @param tokenId erc721 token Id
     * @param bidder bidder address
     * @param value value of a bid to avoid frontrun attack
     */
    function acceptBidForToken(
        address erc721Address,
        uint256 tokenId,
        address bidder,
        uint256 value
    ) external;

    /**
     * @dev Show if listing and bid are enabled
     */
    function isTradingEnabled() external view returns (bool);

    /**
     * @dev get current listing of a token
     * @param tokenId erc721 token Id
     * @return current valid listing or empty listing struct
     */
    function getTokenListing(address erc721Address, uint256 tokenId)
        external
        view
        returns (Listing memory);

    /**
     * @dev get count of listings
     */
    function numTokenListings(address erc721Address)
        external
        view
        returns (uint256);

    /**
     * @dev get current valid listings by size
     * @param from index to start
     * @param size size to query
     * @return current valid listings
     * This to help batch query when list gets big
     */
    function getTokenListings(
        address erc721Address,
        uint256 from,
        uint256 size
    ) external view returns (Listing[] memory);

    /**
     * @dev get bidder's bid on a token
     * @param tokenId erc721 token Id
     * @param bidder address of a bidder
     * @return Valid bid or empty bid
     */
    function getBidderTokenBid(
        address erc721Address,
        uint256 tokenId,
        address bidder
    ) external view returns (Bid memory);

    /**
     * @dev get all valid bids of a token
     * @param tokenId erc721 token Id
     * @return Valid bids of a token
     */
    function getTokenBids(address erc721Address, uint256 tokenId)
        external
        view
        returns (Bid[] memory);

    /**
     * @dev get count of tokens with bid(s)
     */
    function numTokenWithBids(address erc721Address)
        external
        view
        returns (uint256);

    /**
     * @dev get highest bid of a token
     * @param tokenId erc721 token Id
     * @return Valid highest bid or empty bid
     */
    function getTokenHighestBid(address erc721Address, uint256 tokenId)
        external
        view
        returns (Bid memory);

    /**
     * @dev get current highest bids
     * @param from index to start
     * @param size size to query
     * @return current highest bids
     * This to help batch query when list gets big
     */
    function getTokenHighestBids(
        address erc721Address,
        uint256 from,
        uint256 size
    ) external view returns (Bid[] memory);

    /**
     * @dev get all bids of a bidder address
     * @return All valid bids of a bidder
     */
    function getBidderBids(
        address erc721Address,
        address bidder,
        uint256 from,
        uint256 size
    ) external view returns (Bid[] memory);

    /**
     * @dev Surface minimum listing and bid time range
     */
    function actionTimeOutRangeMin() external view returns (uint256);

    /**
     * @dev Surface maximum listing and bid time range
     */
    function actionTimeOutRangeMax() external view returns (uint256);

    /**
     * @dev Payment token address
     */
    function paymentToken() external view returns (address);

    /**
     * @dev Service fee
     * @return fee fraction based on 1000
     */
    function serviceFee() external view returns (uint8);
}

File 3 of 13 : INFTKEYMarketplaceRoyalty.sol
// SPDX-License-Identifier: AGPL-3.0-or-later

pragma solidity =0.8.9;
pragma abicoder v2;

interface INFTKEYMarketplaceRoyalty {
    struct ERC721CollectionRoyalty {
        address recipient;
        uint256 feeFraction;
        address setBy;
    }

    // Who can set: ERC721 owner and NFTKEY owner
    event SetRoyalty(
        address indexed erc721Address,
        address indexed recipient,
        uint256 feeFraction
    );

    /**
     * @dev Royalty fee
     * @param erc721Address to read royalty
     * @return royalty information
     */
    function royalty(address erc721Address)
        external
        view
        returns (ERC721CollectionRoyalty memory);

    /**
     * @dev Royalty fee
     * @param erc721Address to read royalty
     */
    function setRoyalty(
        address erc721Address,
        address recipient,
        uint256 feeFraction
    ) external;
}

File 4 of 13 : NFTKEYMarketplaceRoyalty.sol
// SPDX-License-Identifier: AGPL-3.0-or-later

pragma solidity =0.8.9;
pragma abicoder v2;

import "@openzeppelin/contracts/access/Ownable.sol";
import "./interface/INFTKEYMarketplaceRoyalty.sol";

contract NFTKEYMarketplaceRoyalty is INFTKEYMarketplaceRoyalty, Ownable {
    uint256 public defaultRoyaltyFraction = 20; // By the factor of 1000, 2%
    uint256 public royaltyUpperLimit = 80; // By the factor of 1000, 8%

    mapping(address => ERC721CollectionRoyalty) private _collectionRoyalty;

    function _erc721Owner(address erc721Address)
        private
        view
        returns (address)
    {
        try Ownable(erc721Address).owner() returns (address _contractOwner) {
            return _contractOwner;
        } catch {
            return address(0);
        }
    }

    function royalty(address erc721Address)
        public
        view
        override
        returns (ERC721CollectionRoyalty memory)
    {
        if (_collectionRoyalty[erc721Address].setBy != address(0)) {
            return _collectionRoyalty[erc721Address];
        }

        address erc721Owner = _erc721Owner(erc721Address);
        if (erc721Owner != address(0)) {
            return
                ERC721CollectionRoyalty({
                    recipient: erc721Owner,
                    feeFraction: defaultRoyaltyFraction,
                    setBy: address(0)
                });
        }

        return
            ERC721CollectionRoyalty({
                recipient: address(0),
                feeFraction: 0,
                setBy: address(0)
            });
    }

    function setRoyalty(
        address erc721Address,
        address newRecipient,
        uint256 feeFraction
    ) external override {
        require(
            feeFraction <= royaltyUpperLimit,
            "Please set the royalty percentange below allowed range"
        );

        require(
            msg.sender == royalty(erc721Address).recipient,
            "Only ERC721 royalty recipient is allowed to set Royalty"
        );

        _collectionRoyalty[erc721Address] = ERC721CollectionRoyalty({
            recipient: newRecipient,
            feeFraction: feeFraction,
            setBy: msg.sender
        });

        emit SetRoyalty({
            erc721Address: erc721Address,
            recipient: newRecipient,
            feeFraction: feeFraction
        });
    }

    function setRoyaltyForCollection(
        address erc721Address,
        address newRecipient,
        uint256 feeFraction
    ) external onlyOwner {
        require(
            feeFraction <= royaltyUpperLimit,
            "Please set the royalty percentange below allowed range"
        );

        require(
            royalty(erc721Address).setBy == address(0),
            "Collection royalty recipient already set"
        );

        _collectionRoyalty[erc721Address] = ERC721CollectionRoyalty({
            recipient: newRecipient,
            feeFraction: feeFraction,
            setBy: msg.sender
        });

        emit SetRoyalty({
            erc721Address: erc721Address,
            recipient: newRecipient,
            feeFraction: feeFraction
        });
    }

    function updateRoyaltyUpperLimit(uint256 _newUpperLimit)
        external
        onlyOwner
    {
        royaltyUpperLimit = _newUpperLimit;
    }
}

File 5 of 13 : EnumerableSet.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastvalue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastvalue;
                // Update the index for the moved value
                set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        return _values(set._inner);
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        assembly {
            result := store
        }

        return result;
    }
}

File 6 of 13 : IERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

File 7 of 13 : Context.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

File 8 of 13 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 9 of 13 : IERC721.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
}

File 10 of 13 : SafeERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 11 of 13 : IERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

File 12 of 13 : ReentrancyGuard.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

File 13 of 13 : Ownable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _setOwner(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _setOwner(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _setOwner(newOwner);
    }

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

Settings
{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 999999
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_paymentTokenAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"erc721Address","type":"address"},{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"feeFraction","type":"uint256"}],"name":"SetRoyalty","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"erc721Address","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"seller","type":"address"},{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"bidder","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"indexed":false,"internalType":"struct INFTKEYMarketplaceV2.Bid","name":"bid","type":"tuple"},{"indexed":false,"internalType":"uint256","name":"serviceFee","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"royaltyFee","type":"uint256"}],"name":"TokenBidAccepted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"erc721Address","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"bidder","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"indexed":false,"internalType":"struct INFTKEYMarketplaceV2.Bid","name":"bid","type":"tuple"}],"name":"TokenBidEntered","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"erc721Address","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"bidder","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"indexed":false,"internalType":"struct INFTKEYMarketplaceV2.Bid","name":"bid","type":"tuple"}],"name":"TokenBidWithdrawn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"erc721Address","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"buyer","type":"address"},{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"seller","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"indexed":false,"internalType":"struct INFTKEYMarketplaceV2.Listing","name":"listing","type":"tuple"},{"indexed":false,"internalType":"uint256","name":"serviceFee","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"royaltyFee","type":"uint256"}],"name":"TokenBought","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"erc721Address","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"seller","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"indexed":false,"internalType":"struct INFTKEYMarketplaceV2.Listing","name":"listing","type":"tuple"}],"name":"TokenDelisted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"erc721Address","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"seller","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"indexed":false,"internalType":"struct INFTKEYMarketplaceV2.Listing","name":"listing","type":"tuple"}],"name":"TokenListed","type":"event"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"bidder","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"acceptBidForToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"actionTimeOutRangeMax","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"actionTimeOutRangeMin","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"buyToken","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bool","name":"enabled","type":"bool"}],"name":"changeMarketplaceStatus","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"timeInSec","type":"uint256"}],"name":"changeMaxActionTimeLimit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"timeInSec","type":"uint256"}],"name":"changeMinActionTimeLimit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint8","name":"serviceFeeFraction_","type":"uint8"}],"name":"changeSeriveFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"defaultRoyaltyFraction","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"delistToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"name":"enterBidForToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"address","name":"bidder","type":"address"},{"internalType":"uint256","name":"from","type":"uint256"},{"internalType":"uint256","name":"size","type":"uint256"}],"name":"getBidderBids","outputs":[{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"bidder","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"internalType":"struct INFTKEYMarketplaceV2.Bid[]","name":"bidderBids","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"bidder","type":"address"}],"name":"getBidderTokenBid","outputs":[{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"bidder","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"internalType":"struct INFTKEYMarketplaceV2.Bid","name":"validBid","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getTokenBids","outputs":[{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"bidder","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"internalType":"struct INFTKEYMarketplaceV2.Bid[]","name":"bids","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getTokenHighestBid","outputs":[{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"bidder","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"internalType":"struct INFTKEYMarketplaceV2.Bid","name":"highestBid","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"from","type":"uint256"},{"internalType":"uint256","name":"size","type":"uint256"}],"name":"getTokenHighestBids","outputs":[{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"bidder","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"internalType":"struct INFTKEYMarketplaceV2.Bid[]","name":"highestBids","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getTokenListing","outputs":[{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"seller","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"internalType":"struct INFTKEYMarketplaceV2.Listing","name":"validListing","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"from","type":"uint256"},{"internalType":"uint256","name":"size","type":"uint256"}],"name":"getTokenListings","outputs":[{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"seller","type":"address"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"internalType":"struct INFTKEYMarketplaceV2.Listing[]","name":"listings","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isTradingEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"name":"listToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"}],"name":"numTokenListings","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"}],"name":"numTokenWithBids","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"paymentToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"}],"name":"royalty","outputs":[{"components":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"feeFraction","type":"uint256"},{"internalType":"address","name":"setBy","type":"address"}],"internalType":"struct INFTKEYMarketplaceRoyalty.ERC721CollectionRoyalty","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"royaltyUpperLimit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"serviceFee","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"address","name":"newRecipient","type":"address"},{"internalType":"uint256","name":"feeFraction","type":"uint256"}],"name":"setRoyalty","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"address","name":"newRecipient","type":"address"},{"internalType":"uint256","name":"feeFraction","type":"uint256"}],"name":"setRoyaltyForCollection","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newUpperLimit","type":"uint256"}],"name":"updateRoyaltyUpperLimit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"erc721Address","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"withdrawBidForToken","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

00000000000000000000000021be370d5312f44cb42ce377bc9b8a0cef1a4c83

-----Decoded View---------------
Arg [0] : _paymentTokenAddress (address): 0x21be370d5312f44cb42ce377bc9b8a0cef1a4c83

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000021be370d5312f44cb42ce377bc9b8a0cef1a4c83


Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Validator ID :
0 FTM

Amount Staked
0

Amount Delegated
0

Staking Total
0

Staking Start Epoch
0

Staking Start Time
0

Proof of Importance
0

Origination Score
0

Validation Score
0

Active
0

Online
0

Downtime
0 s
Address Amount claimed Rewards Created On Epoch Created On
Block Uncle Number Difficulty Gas Used Reward
Loading
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.