han/2025-01-cyfrin-pieces-protocol
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

initial commit

Browse Source
This commit is contained in:
Equious
2025-01-03 10:59:02 -07:00
commit 5902ebcb19
13 changed files with 861 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

327
src/TokenDivider.sol Normal file
View File

@@ -0,0 +1,327 @@
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;
import {IERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {ERC20ToGenerateNftFraccion} from "src/token/ERC20ToGenerateNftFraccion.sol";
import {IERC721, ERC721} from "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import {IERC721Receiver} from "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
/**
* @title TokenDivider
* @author Juan Pedro Ventura Baltian, 14 years old
* @notice This contracts was created, with the intention to make a new market of nft franctions
* There are a function to divide an nft, then you can sell and buy some fraction of nft, that are basicaly
* erc20 tokens, each nft pegged to an nft.There are some validations, to make the platforme the most secure
* as possible.This is the first project that i code alone, in blockchain, foundry and solidity.
* Thank you so much for read it.
*/
contract TokenDivider is IERC721Receiver,Ownable {
error TokenDivider__NotFromNftOwner();
error TokenDivider__NotEnoughErc20Balance();
error TokenDivider__NftTransferFailed();
error TokenDivider__InsuficientBalance();
error TokenDivider__CantTransferToAddressZero();
error TokenDivider__TransferFailed();
error TokenDivider__NftAddressIsZero();
error TokenDivider__AmountCantBeZero();
error TokenDivider__InvalidSeller();
error TokenDivier__InvalidAmount();
error TokenDivider__IncorrectEtherAmount();
error TokenDivider__InsuficientEtherForFees();
struct ERC20Info {
address erc20Address;
uint256 tokenId;
}
struct SellOrder {
address seller;
address erc20Address;
uint256 price;
uint256 amount;
}
/**
* @dev balances Relates a user with an amount of a erc20 token, this erc20 tokens is an nft fraction
@dev nftToErc20Info Relates an nft with the erc20 pegged, and othe data like the erc20 amount, or the tokenId
@dev s_userToSellOrders Relates a user with an array of sell orders, that each sell order
has a seller, an erc20 that is the token to sell, a price and an amount of erc20 to sell
*/
mapping(address user => mapping(address erc20Address => uint256 amount)) balances;
mapping(address nft => ERC20Info) nftToErc20Info;
mapping(address user => SellOrder[] orders) s_userToSellOrders;
mapping(address erc20 => address nft) erc20ToNft;
mapping(address erc20 => uint256 totalErc20Minted) erc20ToMintedAmount;
event NftDivided(address indexed nftAddress, uint256 indexed amountErc20Minted, address indexed erc20Minted);
event NftClaimed(address indexed nftAddress);
event TokensTransfered(uint256 indexed amount, address indexed erc20Address);
event OrderPublished(uint256 indexed amount, address indexed seller, address indexed nftPegged);
event OrderSelled(address indexed buyer, uint256 price);
/**
*
* Only the owner of the nft can call a function with this modifier
*/
modifier onlyNftOwner(address nft, uint256 tokenId) {
if(msg.sender != IERC721(nft).ownerOf(tokenId)) {
revert TokenDivider__NotFromNftOwner();
}
_;
}
constructor() Ownable(msg.sender) {}
/**
* @dev Handles the receipt of an ERC721 token. This function is called whenever an ERC721 token is transferred to this contract.
*/
function onERC721Received(
address /* operator */,
address /* from */,
uint256 /* tokenId */,
bytes calldata /* data */
) external pure override returns (bytes4) {
// Return this value to confirm the receipt of the NFT
return this.onERC721Received.selector;
}
/**
*
* @param nftAddress The addres of the nft to divide
* @param tokenId The id of the token to divide
* @param amount The amount of erc20 tokens to mint for the nft
*
* @dev in this function, the nft passed as parameter, is locked by transfering it to this contract, then, it gives to the
* person calling this function an amount of erc20, beeing like a fraction of this nft.
*/
function divideNft(address nftAddress, uint256 tokenId, uint256 amount) onlyNftOwner(nftAddress, tokenId) onlyNftOwner(nftAddress ,tokenId) external {
if(nftAddress == address(0)) { revert TokenDivider__NftAddressIsZero(); }
if(amount == 0) { revert TokenDivider__AmountCantBeZero(); }
ERC20ToGenerateNftFraccion erc20Contract = new ERC20ToGenerateNftFraccion(
string(abi.encodePacked(ERC721(nftAddress).name(), "Fraccion")),
string(abi.encodePacked("F", ERC721(nftAddress).symbol())));
erc20Contract.mint(address(this), amount);
address erc20 = address(erc20Contract);
IERC721(nftAddress).safeTransferFrom(msg.sender, address(this), tokenId, "");
if(IERC721(nftAddress).ownerOf(tokenId) == msg.sender) { revert TokenDivider__NftTransferFailed(); }
balances[msg.sender][erc20] = amount;
nftToErc20Info[nftAddress] = ERC20Info({erc20Address: erc20, tokenId: tokenId});
erc20ToMintedAmount[erc20] = amount;
erc20ToNft[erc20] = nftAddress;
emit NftDivided(nftAddress, amount, erc20);
bool transferSuccess = IERC20(erc20).transfer(msg.sender, amount);
if(!transferSuccess) {
revert TokenDivider__TransferFailed();
}
}
/**
*
* @param nftAddress The address of the nft to claim
*
* @dev in this function, if you have all the erc20 minted for the nft, you can call this function to claim the nft,
* giving to the contract all the erc20 and it will give you back the nft
*/
function claimNft(address nftAddress) external {
if(nftAddress == address(0)) {
revert TokenDivider__NftAddressIsZero();
}
ERC20Info storage tokenInfo = nftToErc20Info[nftAddress];
if(balances[msg.sender][tokenInfo.erc20Address] < erc20ToMintedAmount[tokenInfo.erc20Address]) {
revert TokenDivider__NotEnoughErc20Balance();
}
ERC20ToGenerateNftFraccion(tokenInfo.erc20Address).burnFrom(msg.sender, erc20ToMintedAmount[tokenInfo.erc20Address]);
balances[msg.sender][tokenInfo.erc20Address] = 0;
erc20ToMintedAmount[tokenInfo.erc20Address] = 0;
emit NftClaimed(nftAddress);
IERC721(nftAddress).safeTransferFrom(address(this), msg.sender, tokenInfo.tokenId);
}
/**
*
* @param nftAddress The nft address pegged to the erc20
* @param to The reciver of the erc20
* @param amount The amount of erc20 to transfer
*
* @dev you can use this function to transfer nft franctions 100% securily and registered by te contract
*/
function transferErcTokens(address nftAddress,address to, uint256 amount) external {
if(nftAddress == address(0)) {
revert TokenDivider__NftAddressIsZero();
}
if(to == address(0)) {
revert TokenDivider__CantTransferToAddressZero();
}
if(amount == 0) {
revert TokenDivider__AmountCantBeZero();
}
ERC20Info memory tokenInfo = nftToErc20Info[nftAddress];
if(to == address(0)) {
revert TokenDivider__CantTransferToAddressZero();
}
if(balances[msg.sender][tokenInfo.erc20Address] < amount) {
revert TokenDivider__NotEnoughErc20Balance();
}
balances[msg.sender][tokenInfo.erc20Address] -= amount;
balances[to][tokenInfo.erc20Address] += amount;
emit TokensTransfered(amount, tokenInfo.erc20Address);
IERC20(tokenInfo.erc20Address).transferFrom(msg.sender,to, amount);
}
/**
*
* @param nftPegged The nft address pegged to the tokens to sell
* @param price The price of all the tokens to sell
* @param amount The amount of tokens to sell
*
* @dev this function creates a new order, is like publish you assets into a marketplace, where other persons can buy it.
* firstly, once you call this function, the amount of tokens that you passed into as a parameter, get blocked, by sending it
* to this contract, then a new order is created and published.
*/
function sellErc20(address nftPegged, uint256 price,uint256 amount) external {
if(nftPegged == address(0)) {
revert TokenDivider__NftAddressIsZero();
}
if( amount == 0) {
revert TokenDivider__AmountCantBeZero();
}
ERC20Info memory tokenInfo = nftToErc20Info[nftPegged];
if(balances[msg.sender][tokenInfo.erc20Address] < amount) {
revert TokenDivider__InsuficientBalance();
}
balances[msg.sender][tokenInfo.erc20Address] -= amount;
s_userToSellOrders[msg.sender].push(
SellOrder({
seller: msg.sender,
erc20Address: tokenInfo.erc20Address,
price: price,
amount: amount
})
);
emit OrderPublished(amount,msg.sender, nftPegged);
IERC20(tokenInfo.erc20Address).transferFrom(msg.sender,address(this), amount);
}
/**
*
* @param orderIndex The index of the order in all the orders array of the seller (the seller can have multiple orders active)
* @param seller The person who is selling this tokens
*
* @dev when the buyer call this function, the eth or any token accepted to pay, is sent to the seller
* if the transfer executed correctly, then this contract, wich has all the tokens, send the tokens to the msg.sender
*/
function buyOrder(uint256 orderIndex, address seller) external payable {
if(seller == address(0)) {
revert TokenDivider__InvalidSeller();
}
SellOrder memory order = s_userToSellOrders[seller][orderIndex];
if(msg.value < order.price) {
revert TokenDivider__IncorrectEtherAmount();
}
uint256 fee = order.price / 100;
uint256 sellerFee = fee / 2;
if(msg.value < order.price + sellerFee) {
revert TokenDivider__InsuficientEtherForFees();
}
balances[msg.sender][order.erc20Address] += order.amount;
s_userToSellOrders[seller][orderIndex] = s_userToSellOrders[seller][s_userToSellOrders[seller].length - 1];
s_userToSellOrders[seller].pop();
emit OrderSelled(msg.sender, order.price);
// Transfer The Ether
(bool success, ) = payable(order.seller).call{value: (order.price - sellerFee)}("");
if(!success) {
revert TokenDivider__TransferFailed();
}
(bool taxSuccess, ) = payable(owner()).call{value: fee}("");
if(!taxSuccess) {
revert TokenDivider__TransferFailed();
}
IERC20(order.erc20Address).transfer(msg.sender, order.amount);
}
/** Getters */
function getBalanceOf(address user, address token) public view returns(uint256) {
return balances[user][token];
}
function getErc20TotalMintedAmount(address erc20) public view returns(uint256) {
return erc20ToMintedAmount[erc20];
}
function getErc20InfoFromNft(address nft) public view returns(ERC20Info memory) {
return nftToErc20Info[nft];
}
function getOrderPrice(address seller, uint256 index) public view returns(uint256 price) {
price = s_userToSellOrders[seller][index].price;
}
}

18
src/token/ERC20ToGenerateNftFraccion.sol Normal file
View File

@@ -0,0 +1,18 @@
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;
import {ERC20Burnable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
contract ERC20ToGenerateNftFraccion is ERC20, ERC20Burnable {
constructor(string memory _name, string memory _symbol) ERC20(_name, _symbol) {
}
function mint(address _to, uint256 _amount) public {
_mint(_to, _amount);
}
}