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shares.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import "@openzeppelin/contracts@4.9.3/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts@4.9.3/token/ERC721/extensions/ERC721URIStorage.sol";
import "@openzeppelin/contracts@4.9.3/token/ERC721/extensions/ERC721Burnable.sol";
import "@openzeppelin/contracts@4.9.3/access/Ownable.sol";
import "@openzeppelin/contracts@4.9.3/utils/Counters.sol";
import "@openzeppelin/contracts@4.9.3/token/ERC20/IERC20.sol";
import "villa.sol";

contract SHARES {
    address private _shares_owner;
    uint256 public villaCount;
    address public USDT_ADDRESS;
    mapping(uint256 => address) public villa;
    constructor(address _usdt) {
        USDT_ADDRESS = _usdt;
        _shares_owner = msg.sender;
    }
    modifier onlyOwner() {  
        require(msg.sender == _shares_owner, "owner only");
        _;
    }
    //create new villa with nft
    function createVilla(
        string memory uid,
        string memory name, 
        string memory uri,
        string memory symbol,
        address[] memory admins,
        uint256 buyPrice, 
        uint256 sellPrice, 
        uint256 max_nft_count) public onlyOwner returns (address) {
        uint256 villaId = villaCount++;
        //create new villa contract
        Villa villa_contract = new Villa(admins, name, symbol);
        villa[villaId] = address(villa_contract); 
        //intialize villa data 
        villa_contract.initializeVilla(
            uid, 
            name, 
            uri, 
            buyPrice, 
            sellPrice, 
            max_nft_count
        );
        return address(villa_contract);
    }
    // function updateVillaBuyPrice(uint256 villaid, uint256 price) public onlyOwner {
    //     require(villaid < villaCount, "Villa ID does not exist"); 
    //     require(price > 0, "Invalid Price"); 
    //     villa[villaid].buyPrice = price;
    // } 
    // function updateVillaSellPrice(uint256 villaid, uint256 price) public onlyOwner {
    //     require(villaid < villaCount, "Villa ID does not exist"); 
    //     require(price > 0, "Invalid Price"); 
    //     villa[villaid].sellPrice = price;
    // }
    // function buyShare(uint256 villaid, uint256 share_amount) public returns (uint256[] memory){
    //     require(villaid < villaCount, "Villa ID does not exist");
    //     require(villa[villaid].minted_nft + share_amount <= villa[villaid].max_nft_count, "Exceeds maximum NFT count for villa");
    //     IERC20 usdt_token = IERC20(USDT_ADDRESS); 
    //     uint256 buyPrice = villa[villaid].buyPrice;
    //     uint256 totalCost = buyPrice * share_amount;
    //     require(usdt_token.balanceOf(msg.sender) >= totalCost, "Insufficient USDT balance");
    //     require(usdt_token.allowance(msg.sender, address(this)) >= totalCost, "Allowance not sufficient");
    //     usdt_token.transferFrom(msg.sender, address(this), totalCost);
    //     uint256[] memory mintedTokenIds = new uint256[](share_amount);
    //     //mint nft 
    //     for (uint256 i = 0; i < share_amount; i++) {
    //         villa[villaid].minted_nft++; 
    //         uint256 tokenId = _tokenIdCounter.current();
    //         _tokenIdCounter.increment();
    //         _safeMint(msg.sender, tokenId);
    //         _setTokenURI(tokenId, villa[villaid].uri);
    //         mintedTokenIds[i] = tokenId;
    //     }
    //     return mintedTokenIds;
    // }

    // function sellShare(uint256 villaid, uint256[] memory tokenids) public returns (uint256[] memory) {
    //     require(villaid < villaCount, "Villa ID does not exist");
    //     require(tokenids.length > 0, "Invalid Token Ids"); 
    //     IERC20 usdt_token = IERC20(USDT_ADDRESS);
    //     uint256 sellPrice = villa[villaid].sellPrice * tokenids.length; 
    //     usdt_token.approve(msg.sender, sellPrice);
    //     //check all token if approce 
    //     for (uint256 i = 0; i < tokenids.length; i++) {
    //         require(getApproved(tokenids[i]) == address(this), "Token Id not approve");
    //     }
    //     //send the usdt
    //     uint256[] memory sellTokenIds = new uint256[](tokenids.length);
    //     usdt_token.transfer(msg.sender, sellPrice);
    //     for (uint256 i = 0; i < tokenids.length; i++) {
    //         //transfer nft 
    //         //todo save sell share
    //         villa[villaid].minted_nft--;
    //         transferFrom(msg.sender, address(this), tokenids[i]);
    //     }
    //     return sellTokenIds;
    // }
    function usdtBalance() public view onlyOwner returns (uint256) {
        IERC20 usdt_token = IERC20(USDT_ADDRESS);
        return usdt_token.balanceOf(address(this));
    }
    function withdraw() public onlyOwner {
        IERC20 usdt_token = IERC20(USDT_ADDRESS); 
        uint256 balance = usdt_token.balanceOf(address(this));
        require(usdt_token.balanceOf(address(this)) > 0, "not enough usdt"); 
        usdt_token.transfer(msg.sender, balance);
    }

  
}