git.delta.rocks / unique-network / refs/commits / 42f7f34eac79

--- /dev/null
+++ b/tests/src/eth/fractionalizer/Fractionalizer.bin
@@ -0,0 +1 @@
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\ No newline at end of file

--- /dev/null
+++ b/tests/src/eth/fractionalizer/Fractionalizer.sol
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier:  Apache License
+pragma solidity >=0.8.0;
+import {CollectionHelpers} from "../api/CollectionHelpers.sol";
+import {ContractHelpers} from "../api/ContractHelpers.sol";
+import {UniqueRefungibleToken} from "../api/UniqueRefungibleToken.sol";
+import {UniqueRefungible} from "../api/UniqueRefungible.sol";
+import {UniqueNFT} from "../api/UniqueNFT.sol";
+
+contract Fractionalizer {
+    struct Token {
+        address _collection;
+        uint256 _tokenId;
+    }
+    address rftCollection;
+    mapping(address => bool) nftCollectionAllowList;
+    mapping(address => mapping(uint256 => uint256)) nft2rftMapping;
+    mapping(address => Token) rft2nftMapping;
+    address owner;
+    bytes32 refungibleCollectionType = keccak256(bytes("ReFungible"));
+
+    constructor() {
+        owner = msg.sender;
+    }
+
+    modifier onlyOwner() {
+        require(msg.sender == owner, "Only owner can");
+        _;
+    }
+
+    event RFTCollectionSet(address _collection);
+    event AllowListSet(address _collection, bool _status);
+    event Fractionalized(address _collection, uint256 _tokenId, address _rftToken, uint128 _amount);
+    event DeFractionalized(address _rftToken, address _nftCollection, uint256 _nftTokenId);
+
+    function setRFTCollection(address _collection) public onlyOwner {
+        require(
+            rftCollection == address(0),
+            "RFT collection is already set"
+        );
+        UniqueRefungible refungibleContract = UniqueRefungible(_collection);
+        string memory collectionType = refungibleContract.uniqueCollectionType();
+        
+        require(
+            keccak256(bytes(collectionType)) == refungibleCollectionType,
+            "Fractionalizer contract should be an admin of the collection"
+        );
+        require(
+            refungibleContract.verifyOwnerOrAdmin(),
+            "Fractionalizer contract should be an admin of the collection"
+        );
+        rftCollection = _collection;
+        emit RFTCollectionSet(rftCollection);
+    }
+
+    function mintRFTCollection(string calldata _name, string calldata _description, string calldata _tokenPrefix) public onlyOwner {
+        require(
+            rftCollection == address(0),
+            "RFT collection is already set"
+        );
+        address collectionHelpers = 0x6C4E9fE1AE37a41E93CEE429e8E1881aBdcbb54F;
+        rftCollection = CollectionHelpers(collectionHelpers).createRefungibleCollection(_name, _description, _tokenPrefix);
+        emit RFTCollectionSet(rftCollection);
+    }
+
+    function setAllowlist(address collection, bool status) public onlyOwner {
+        nftCollectionAllowList[collection] = status;
+        emit AllowListSet(collection, status);
+    }
+
+    function nft2rft(address _collection, uint256 _token, uint128 _pieces) public {
+        require(
+            rftCollection != address(0),
+            "RFT collection is not set"
+        );
+        UniqueRefungible rftCollectionContract = UniqueRefungible(rftCollection);
+        require(
+            UniqueNFT(_collection).ownerOf(_token) == msg.sender,
+            "Only token owner could fractionalize it"
+        );
+        require(
+            nftCollectionAllowList[_collection] == true,
+            "Fractionalization of this collection is not allowed by admin"
+        );
+        require(
+            UniqueNFT(_collection).ownerOf(_token) == msg.sender,
+            "Only token owner could fractionalize it"
+        );
+        UniqueNFT(_collection).transferFrom(
+            msg.sender,
+            address(this),
+            _token
+        );
+        uint256 rftTokenId;
+        address rftTokenAddress;
+        UniqueRefungibleToken rftTokenContract;
+        if (nft2rftMapping[_collection][_token] == 0) {
+            rftTokenId = rftCollectionContract.nextTokenId();
+            rftCollectionContract.mint(address(this), rftTokenId);
+            rftTokenAddress = rftCollectionContract.tokenContractAddress(rftTokenId);
+            nft2rftMapping[_collection][_token] = rftTokenId;
+            rft2nftMapping[rftTokenAddress] = Token(_collection, _token);
+
+            rftTokenContract = UniqueRefungibleToken(rftTokenAddress);
+            rftTokenContract.setParentNFT(_collection, _token);
+        } else {
+            rftTokenId = nft2rftMapping[_collection][_token];
+            rftTokenAddress = rftCollectionContract.tokenContractAddress(rftTokenId);
+            rftTokenContract = UniqueRefungibleToken(rftTokenAddress);
+        }
+        rftTokenContract.repartition(_pieces);
+        rftTokenContract.transfer(msg.sender, _pieces);
+        emit Fractionalized(_collection, _token, rftTokenAddress, _pieces);
+    }
+
+    function rft2nft(address _collection, uint256 _token) public {
+        require(
+            rftCollection != address(0),
+            "RFT collection is not set"
+        );
+        require(
+            rftCollection == _collection,
+            "Wrong RFT collection"
+        );
+        UniqueRefungible rftCollectionContract = UniqueRefungible(rftCollection);
+        address rftTokenAddress = rftCollectionContract.tokenContractAddress(_token);
+        Token memory nftToken = rft2nftMapping[rftTokenAddress];
+        require(
+            nftToken._collection != address(0),
+            "No corresponding NFT token found"
+        );
+        UniqueRefungibleToken rftTokenContract = UniqueRefungibleToken(rftTokenAddress);
+        require(
+            rftTokenContract.balanceOf(msg.sender) == rftTokenContract.totalSupply(),
+            "Not all pieces are owned by the caller"
+        );
+        rftCollectionContract.transferFrom(msg.sender, address(this), _token);
+        UniqueNFT(nftToken._collection).transferFrom(
+            address(this),
+            msg.sender,
+            nftToken._tokenId
+        );
+        emit DeFractionalized(rftTokenAddress, nftToken._collection, nftToken._tokenId);
+    }
+}
\ No newline at end of file

no changes

--- /dev/null
+++ b/tests/src/eth/fractionalizer/fractionalizer.test.ts
@@ -0,0 +1,176 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+
+import Web3 from 'web3';
+import {ApiPromise} from '@polkadot/api';
+import {evmToAddress} from '@polkadot/util-crypto';
+import {readFile} from 'fs/promises';
+import fractionalizerAbi from './FractionalizerAbi.json';
+import {submitTransactionAsync} from '../../substrate/substrate-api';
+import {UNIQUE} from '../../util/helpers';
+import {collectionIdToAddress, createEthAccountWithBalance, createNonfungibleCollection, createRefungibleCollection, GAS_ARGS, itWeb3, tokenIdFromAddress, uniqueNFT, uniqueRefungible, uniqueRefungibleToken} from '../util/helpers';
+import {Contract} from 'web3-eth-contract';
+
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import chaiLike from 'chai-like';
+import {IKeyringPair} from '@polkadot/types/types';
+chai.use(chaiAsPromised);
+chai.use(chaiLike);
+const expect = chai.expect;
+
+async function deployFractionalizer(api: ApiPromise, web3: Web3, owner: string) {
+  const fractionalizerContract = new web3.eth.Contract(fractionalizerAbi as any, undefined, {
+    from: owner,
+    ...GAS_ARGS,
+  });
+  return await fractionalizerContract.deploy({data: (await readFile(`${__dirname}/Fractionalizer.bin`)).toString()}).send({from: owner});
+}
+
+async function initFractionalizer(api: ApiPromise, web3: Web3, privateKeyWrapper: (account: string) => IKeyringPair, owner: string) {
+  const fractionalizer = await deployFractionalizer(api, web3, owner);
+  const tx = api.tx.balances.transfer(evmToAddress(fractionalizer.options.address), 10n * UNIQUE);
+  const alice = privateKeyWrapper('//Alice');
+  await submitTransactionAsync(alice, tx);
+  const result = await fractionalizer.methods.mintRFTCollection('A', 'B', 'C').send();
+  const rftCollectionAddress = result.events.RFTCollectionSet.returnValues._collection;
+  return {fractionalizer, rftCollectionAddress};
+}
+
+async function createRFTToken(api: ApiPromise, web3: Web3, owner: string, fractionalizer: Contract, amount: bigint) {
+  const {collectionIdAddress: nftCollectionAddress} = await createNonfungibleCollection(api, web3, owner);
+  const nftContract = uniqueNFT(web3, nftCollectionAddress, owner);
+  const nftTokenId = await nftContract.methods.nextTokenId().call();
+  await nftContract.methods.mint(owner, nftTokenId).send();
+
+  await fractionalizer.methods.setAllowlist(nftCollectionAddress, true).send();
+  await nftContract.methods.approve(fractionalizer.options.address, nftTokenId).send();
+  const result = await fractionalizer.methods.nft2rft(nftCollectionAddress, nftTokenId, amount).send();
+  const {_collection, _tokenId, _rftToken} = result.events.Fractionalized.returnValues;
+  return {
+    nftCollectionAddress: _collection,
+    nftTokenId: _tokenId,
+    rftTokenAddress: _rftToken,
+  };
+}
+
+describe('Fractionalizer contract usage', () => {
+  itWeb3('Set RFT collection', async ({api, web3, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const fractionalizer = await deployFractionalizer(api, web3, owner);
+    const {collectionIdAddress} = await createRefungibleCollection(api, web3, owner);
+    const refungibleContract = uniqueRefungible(web3, collectionIdAddress, owner);
+    await refungibleContract.methods.addCollectionAdmin(fractionalizer.options.address).send();
+    const result = await fractionalizer.methods.setRFTCollection(collectionIdAddress).send();
+    expect(result.events).to.be.like({
+      RFTCollectionSet: {
+        returnValues: {
+          _collection: collectionIdAddress,
+        },
+      },
+    });
+  });
+
+  itWeb3('Mint RFT collection', async ({api, web3, privateKeyWrapper}) => {
+    const alice = privateKeyWrapper('//Alice');
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const fractionalizer = await deployFractionalizer(api, web3, owner);
+    const tx = api.tx.balances.transfer(evmToAddress(fractionalizer.options.address), 10n * UNIQUE);
+    await submitTransactionAsync(alice, tx);
+
+    const result = await fractionalizer.methods.mintRFTCollection('A', 'B', 'C').send({from: owner});
+    expect(result.events).to.be.like({
+      RFTCollectionSet: {},
+    });
+    expect(result.events.RFTCollectionSet.returnValues._collection).to.be.ok;
+  });
+
+  itWeb3('Set Allowlist', async ({api, web3, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+    const {fractionalizer} = await initFractionalizer(api, web3, privateKeyWrapper, owner);    
+
+    const {collectionIdAddress: nftCollectionAddress} = await createNonfungibleCollection(api, web3, owner);
+    const result1 = await fractionalizer.methods.setAllowlist(nftCollectionAddress, true).send({from: owner});
+    expect(result1.events).to.be.like({
+      AllowListSet: {
+        returnValues: {
+          _collection: nftCollectionAddress,
+          _status: true,
+        },
+      },
+    });
+    const result2 = await fractionalizer.methods.setAllowlist(nftCollectionAddress, false).send({from: owner});
+    expect(result2.events).to.be.like({
+      AllowListSet: {
+        returnValues: {
+          _collection: nftCollectionAddress,
+          _status: false,
+        },
+      },
+    });
+  });
+
+  itWeb3('NFT to RFT', async ({api, web3, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+
+    const {collectionIdAddress: nftCollectionAddress} = await createNonfungibleCollection(api, web3, owner);
+    const nftContract = uniqueNFT(web3, nftCollectionAddress, owner);
+    const nftTokenId = await nftContract.methods.nextTokenId().call();
+    await nftContract.methods.mint(owner, nftTokenId).send();
+
+    const {fractionalizer} = await initFractionalizer(api, web3, privateKeyWrapper, owner);
+
+    await fractionalizer.methods.setAllowlist(nftCollectionAddress, true).send();
+    await nftContract.methods.approve(fractionalizer.options.address, nftTokenId).send();
+    const result = await fractionalizer.methods.nft2rft(nftCollectionAddress, nftTokenId, 100).send();
+    expect(result.events).to.be.like({
+      Fractionalized: {
+        returnValues: {
+          _collection: nftCollectionAddress,
+          _tokenId: nftTokenId,
+          _amount: '100',
+        },
+      },
+    });
+    const rftTokenAddress = result.events.Fractionalized.returnValues._rftToken;
+    const rftTokenContract = uniqueRefungibleToken(web3, rftTokenAddress, owner);
+    expect(await rftTokenContract.methods.balanceOf(owner).call()).to.equal('100');
+  });
+
+  itWeb3('RFT to NFT', async ({api, web3, privateKeyWrapper}) => {
+    const owner = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+
+    const {fractionalizer, rftCollectionAddress} = await initFractionalizer(api, web3, privateKeyWrapper, owner);
+    const {rftTokenAddress, nftCollectionAddress, nftTokenId} = await createRFTToken(api, web3, owner, fractionalizer, 100n);
+
+    const {collectionId, tokenId} = tokenIdFromAddress(rftTokenAddress);
+    const refungibleAddress = collectionIdToAddress(collectionId);
+    expect(rftCollectionAddress).to.be.equal(refungibleAddress);
+    const refungibleTokenContract = uniqueRefungibleToken(web3, rftTokenAddress, owner);
+    await refungibleTokenContract.methods.approve(fractionalizer.options.address, 100).send();
+    const result = await fractionalizer.methods.rft2nft(refungibleAddress, tokenId).send();
+    expect(result.events).to.be.like({
+      DeFractionalized: {
+        returnValues: {
+          _rftToken: rftTokenAddress,
+          _nftCollection: nftCollectionAddress,
+          _nftTokenId: nftTokenId,
+        },
+      },
+    });
+  });
+});
\ No newline at end of file