Contract Source Code (Solidity Standard Json-Input format)

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

interface IChildContract {
    function mint(address to) external;
    function withdraw() external;
    function transferOwnership(address newOwner) external;
}

interface ITargetContract {
    function mint(uint256 payableAmount, uint256 tokens) external payable;
}

contract FabricContract {
    address[] public childContracts;
    address public owner;

    modifier onlyOwner() {
        require(msg.sender == owner, "Not the owner");
        _;
    }

    event ChildContractDeployed(address indexed childAddress);
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    event FundsWithdrawn(address indexed to, uint256 amount);

    constructor() {
        owner = msg.sender;
    }

    function createChildContracts(uint256 count) external onlyOwner {
        for (uint256 i = 0; i < count; i++) {
            ChildContract child = new ChildContract(owner);
            childContracts.push(address(child));
            emit ChildContractDeployed(address(child));
        }
    }

function mintFromChildren(address targetContract, uint256 mintCost, uint256 tokens) external onlyOwner payable {
    uint256 amountToChild = 0.01 ether; // Сумма для отправки на каждый дочерний контракт

    // Проверка, что на FabricContract достаточно средств для всех контрактов
    require(
        address(this).balance >= amountToChild * childContracts.length,
        "Insufficient funds in FabricContract"
    );

    // Цикл по всем дочерним контрактам
    for (uint256 i = 0; i < childContracts.length; i++) {
        address child = childContracts[i];

        // Отправляем 0.01 ETH на дочерний контракт
        (bool sent, ) = payable(child).call{value: amountToChild}("");
        require(sent, "Failed to send funds to child contract");

        // Вызываем функцию mint на дочернем контракте с правильным ABI
        (bool success, bytes memory data) = child.call(
            abi.encodeWithSignature(
                "mint(address,uint256)", 
                targetContract, // Адрес целевого контракта
                tokens // Количество токенов
            )
        );
        require(success, string(data)); // Проверяем успешность вызова mint

        // Возвращаем остаток средств на FabricContract
        IChildContract(child).withdraw();
    }
}


    function getChildContracts() external view returns (address[] memory) {
        return childContracts;
    }

    function withdrawFunds() external onlyOwner {
        uint256 balance = address(this).balance;
        require(balance > 0, "No funds to withdraw");

        (bool success, ) = payable(owner).call{value: balance}("");
        require(success, "Withdraw failed");

        emit FundsWithdrawn(owner, balance);
    }

    // Функция для получения эфира на контракт
    receive() external payable {}
}

contract ChildContract is IChildContract {
    address public owner;
    uint256 public tokenId;
    mapping(uint256 => address) private tokenOwners;

    event Mint(address indexed to, uint256 tokenId);
    event Transfer(address indexed from, address indexed to, uint256 tokenId);
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    modifier onlyOwner() {
        require(msg.sender == owner, "Not the owner");
        _;
    }

    constructor(address _owner) {
        owner = _owner;
        tokenId = 0;
    }

    function mint(address to) external onlyOwner override {
        tokenId++;
        tokenOwners[tokenId] = to;
        emit Mint(to, tokenId);
    }

    function transfer(address to, uint256 _tokenId) external {
        require(tokenOwners[_tokenId] == msg.sender, "Not the token owner");
        require(to != address(0), "Invalid recipient");

        tokenOwners[_tokenId] = to;
        emit Transfer(msg.sender, to, _tokenId);
    }

    function ownerOf(uint256 _tokenId) external view returns (address) {
        return tokenOwners[_tokenId];
    }

    function withdraw() external onlyOwner override {
        uint256 balance = address(this).balance;
        require(balance > 0, "No funds to withdraw");

        (bool success, ) = payable(owner).call{value: balance}("");
        require(success, "Transfer failed");
    }

    function transferOwnership(address newOwner) external onlyOwner override {
        require(newOwner != address(0), "New owner is the zero address");
        emit OwnershipTransferred(owner, newOwner);
        owner = newOwner;
    }

    receive() external payable {}
}

{
  "evmVersion": "paris",
  "optimizer": {
    "enabled": true,
    "mode": "3"
  },
  "outputSelection": {
    "*": {
      "*": [
        "abi",
        "metadata"
      ],
      "": [
        "ast"
      ]
    }
  },
  "detectMissingLibraries": false,
  "forceEVMLA": false,
  "enableEraVMExtensions": false,
  "libraries": {}
}

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"childAddress","type":"address"}],"name":"ChildContractDeployed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"FundsWithdrawn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"childContracts","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"count","type":"uint256"}],"name":"createChildContracts","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getChildContracts","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"targetContract","type":"address"},{"internalType":"uint256","name":"mintCost","type":"uint256"},{"internalType":"uint256","name":"tokens","type":"uint256"}],"name":"mintFromChildren","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawFunds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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