RealEstateFactory Contract

The RealEstateFactory contract is responsible for deploying new RealEstateToken contracts with the deployProject() function. It keeps a record of deployed RealEstateToken contracts deployed in the allProjects state variable which can be accessed by the getAllProjects() function.

The Whitelist contract must be deployed before the RealEstateFactory contract. RealEstateFactory requires the address of the deployed Whitelist contract that manages approved investor addresses.

RealEstateFactory

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.30;

import {RealEstateToken} from "./RealEstateToken.sol";
import {Ownable2Step, Ownable} from "@openzeppelin/contracts/access/Ownable2Step.sol";

// A factory contract to deploy new RealEstateToken contracts
// Factory deploys RealEstateToken contracts representing tokenisation of a real estate assets
// WARNING: This contract is an example only - do not use in production
contract RealEstateFactory is Ownable2Step {
    // Address of the deployed Whitelist contract
    address public whitelist;
    // Array of all RealEstateToken contract addresses
    address[] public allProjects;

    // Event emitted when a new RealEstateToken contract is deployed
    event ProjectCreated(
        address indexed projectAddress,
        address indexed issuer,
        string projectName,
        string projectSymbol,
        string propertyId,
        string jurisdiction,
        string metadataUri
    );

    constructor(address whiteListAddress) Ownable(msg.sender) {
        whitelist = whiteListAddress;
    }

    // Factory function to deploy a new RealEstateToken contract
    /// Returns the address of the deployed RealEstateToken contract
    function deployProject(
        string memory name,
        string memory symbol,
        string memory propertyId,
        string memory jurisdiction,
        string memory metadataUri
    ) external returns (address) {
        RealEstateToken token = new RealEstateToken(
            name,
            symbol,
            whitelist,
            propertyId,
            jurisdiction,
            metadataUri,
            msg.sender
        );

        allProjects.push(address(token));

        emit ProjectCreated(
            address(token),
            msg.sender,
            name,
            symbol,
            propertyId,
            jurisdiction,
            metadataUri
        );

        return address(token);
    }

    // Get an array of all deployed RealEstateToken contracts
    function getAllProjects() external view returns (address[] memory) {
        return allProjects;
    }
}