first commit

.gitignore

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+node_modules
+.env
+artifacts
+build
+
+#Hardhat files
+cache
+artifacts
+.vscode

README.md

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+# ICICB-Marketplace-Contract
+
+This is NFT Marketplace Contract.

contracts/ERC20.sol

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+// SPDX-License-Identifier: Apache-2.0
+pragma solidity ^0.8.0;
+
+import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+
+contract Token is ERC20 {
+    constructor(uint256 initialSupply) ERC20("test token", "test") {
+        _mint(msg.sender, initialSupply * 1e18);
+    }
+}

contracts/FeeManager.sol

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+// SPDX-License-Identifier: Apache-2.0
+
+pragma solidity ^0.8.0;
+
+import "@openzeppelin/contracts/access/Ownable.sol";
+
+contract FeeManager is Ownable {
+
+    event ChangedFeePerMillion(uint256 cutPerMillion);
+
+    // Market fee on sales
+    uint256 public cutPerMillion=100000;
+    uint256 public constant maxCutPerMillion = 100000; // 10% cut
+
+    uint256 public royaltyPerMillion=100000;
+
+    /**
+     * @dev Sets the share cut for the owner of the contract that's
+     *  charged to the seller on a successful sale
+     * @param _cutPerMillion - Share amount, from 0 to 99,999
+     */
+    function setOwnerCutPerMillion(uint256 _cutPerMillion) external onlyOwner {
+        require(
+            _cutPerMillion < maxCutPerMillion,
+            "The owner cut should be between 0 and maxCutPerMillion"
+        );
+
+        cutPerMillion = _cutPerMillion;
+        emit ChangedFeePerMillion(cutPerMillion);
+    }
+}

contracts/IMarketplace.sol

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+// SPDX-License-Identifier: Apache-2.0
+
+pragma solidity ^0.8.0;
+
+interface IMarketplace {
+    struct Order {
+        // Order ID
+        bytes32 id;
+        // Owner of the NFT
+        address seller;
+        // NFT registry address
+        address nftAddress;
+        // Price (in wei) for the published item
+        uint256 price;
+        // Time when this sale ends
+        uint256 expiresAt;
+    }
+
+    struct Bid {
+        // Bid Id
+        bytes32 id;
+        // Bidder address
+        address bidder;
+        // Price for the bid in wei
+        uint256 price;
+        // Time when this bid ends
+        uint256 expiresAt;
+    }
+
+    // ORDER EVENTS
+    event OrderCreated(
+        bytes32 id,
+        address indexed seller,
+        address indexed nftAddress,
+        uint256 indexed assetId,
+        uint256 priceInWei,
+        uint256 expiresAt
+    );
+
+    event OrderUpdated(bytes32 id, uint256 priceInWei, uint256 expiresAt);
+
+    event OrderSuccessful(
+        bytes32 id,
+        address indexed buyer,
+        uint256 priceInWei
+    );
+
+    event OrderCancelled(bytes32 id);
+
+    // BID EVENTS
+    event BidCreated(
+        bytes32 id,
+        address indexed nftAddress,
+        uint256 indexed assetId,
+        address indexed bidder,
+        uint256 priceInWei,
+        uint256 expiresAt
+    );
+
+    event BidAccepted(bytes32 id);
+    event BidCancelled(bytes32 id);
+
+    event BuyCreated(
+        address indexed nftAddress,
+        uint256 indexed assetId,
+        address indexed bidder,
+        address seller,
+        uint256 priceInWei
+    );
+}