RentStacPresale

{{
  "language": "Solidity",
  "sources": {
    "contracts/RentStacPresale.sol": {
      "content": "// SPDX-License-Identifier: MIT\r
pragma solidity ^0.8.20;\r
\r
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";\r
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";\r
import "@openzeppelin/contracts/access/Ownable.sol";\r
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";\r
import "@openzeppelin/contracts/security/Pausable.sol";\r
\r
// Chainlink Price Feed Interface\r
interface AggregatorV3Interface {\r
    function latestRoundData() external view returns (\r
        uint80 roundId,\r
        int256 answer,\r
        uint256 startedAt,\r
        uint256 updatedAt,\r
        uint80 answeredInRound\r
    );\r
    function decimals() external view returns (uint8);\r
}\r
\r
/**\r
 * @title RentStacPresale\r
 * @dev Multi-phase presale contract for RNS tokens (RentStac.com)\r
 * 7 phases with progressive pricing - $27.45M total raise\r
 * 800M RNS tokens (40% of 2B total supply)\r
 * Accepts ETH, USDT, and USDC\r
 * \r
 * FIXED:\r
 * - Cross-phase purchase handling\r
 * - Chainlink oracle for ETH price\r
 * - Complete wallet allocation (7 categories)\r
 * - Uses .call() instead of .transfer() for multisig compatibility\r
 * - MILLICENTS pricing system for accurate sub-cent prices\r
 * \r
 * Based on RentStac.com Whitepaper specifications\r
 */\r
contract RentStacPresale is Ownable, ReentrancyGuard, Pausable {\r
    using SafeERC20 for IERC20;\r
    \r
    // Token contracts\r
    IERC20 public immutable rnsToken;  // RNS token being sold\r
    IERC20 public immutable usdtToken;\r
    IERC20 public immutable usdcToken;\r
    \r
    // Chainlink ETH/USD Price Feed\r
    AggregatorV3Interface public immutable ethPriceFeed;\r
    uint256 public fallbackEthPrice = 400000; // $4,000 in cents (fallback only)\r
    \r
    // Presale phases configuration\r
    struct Phase {\r
        uint256 priceInMillicents;  // Price in millicents (1 millicent = $0.00001, so 2500 = $0.025)\r
        uint256 tokensAllocated;    // Total tokens for this phase\r
        uint256 tokensSold;         // Tokens sold in this phase\r
    }\r
    \r
    Phase[7] public phases;\r
    uint8 public currentPhase = 0;\r
    \r
    // Hard cap (in USD cents)\r
    uint256 public constant HARD_CAP_USD = 2745000000;  // $27,450,000\r
    \r
    // Tracking\r
    uint256 public totalRaisedUSD;  // In cents\r
    mapping(address => uint256) public userPurchasedUSD;  // User purchases in cents\r
    mapping(address => uint256) public userTokensPurchased;\r
    \r
    // Buyer tracking for pagination\r
    address[] private buyers;\r
    mapping(address => bool) private isBuyer;\r
    \r
    // Presale Treasury Wallet - receives 100% of raised funds (MULTISIG)\r
    address public presaleTreasuryWallet;\r
    \r
    // Token allocation wallets (as per Whitepaper Section 7)\r
    address public liquidityWallet;          // 20% - Liquidity & Reserves\r
    address public teamWallet;               // 15% - Team & Founders\r
    address public communityWallet;          // 10% - Community Rewards\r
    address public marketingWallet;          // 8% - Marketing & Partnerships\r
    address public developmentWallet;        // 4% - Development Fund\r
    address public legalWallet;              // 3% - Legal & Compliance\r
    \r
    // Events\r
    event TokensPurchased(\r
        address indexed buyer,\r
        uint256 usdAmount,\r
        uint256 tokenAmount,\r
        uint8 phase,\r
        string paymentMethod\r
    );\r
    event PhaseAdvanced(uint8 newPhase, uint256 newPriceInMillicents);\r
    event FundsWithdrawn(address indexed token, uint256 amount);\r
    event FallbackETHPriceUpdated(uint256 newPrice);\r
    event WalletsUpdated(string walletType, address newAddress);\r
    event UnsoldTokensBurned(uint256 amount);\r
    \r
    constructor(\r
        address _rnsToken,\r
        address _usdtToken,\r
        address _usdcToken,\r
        address _ethPriceFeed,\r
        address _presaleTreasuryWallet,\r
        address _liquidityWallet,\r
        address _teamWallet,\r
        address _communityWallet,\r
        address _marketingWallet,\r
        address _developmentWallet,\r
        address _legalWallet\r
    ) Ownable(msg.sender) {\r
        require(_rnsToken != address(0), "Invalid RNS token");\r
        require(_usdtToken != address(0), "Invalid USDT token");\r
        require(_usdcToken != address(0), "Invalid USDC token");\r
        require(_ethPriceFeed != address(0), "Invalid price feed");\r
        require(_presaleTreasuryWallet != address(0), "Invalid presale treasury");\r
        require(_liquidityWallet != address(0), "Invalid liquidity wallet");\r
        require(_teamWallet != address(0), "Invalid team wallet");\r
        require(_communityWallet != address(0), "Invalid community wallet");\r
        require(_marketingWallet != address(0), "Invalid marketing wallet");\r
        require(_developmentWallet != address(0), "Invalid development wallet");\r
        require(_legalWallet != address(0), "Invalid legal wallet");\r
\r
        rnsToken = IERC20(_rnsToken);\r
        usdtToken = IERC20(_usdtToken);\r
        usdcToken = IERC20(_usdcToken);\r
        ethPriceFeed = AggregatorV3Interface(_ethPriceFeed);\r
        \r
        presaleTreasuryWallet = _presaleTreasuryWallet;\r
        liquidityWallet = _liquidityWallet;\r
        teamWallet = _teamWallet;\r
        communityWallet = _communityWallet;\r
        marketingWallet = _marketingWallet;\r
        developmentWallet = _developmentWallet;\r
        legalWallet = _legalWallet;\r
        \r
        // Initialize 7 phases according to RentStac.com Whitepaper\r
        // NOTE: Prices in MILLICENTS (1 millicent = $0.00001)\r
        // Phase 1: $0.025 = 2500 millicents, 240M RNS, $6M raised\r
        phases[0] = Phase(2500, 240_000_000 * 10**18, 0);\r
        // Phase 2: $0.030 = 3000 millicents, 160M RNS, $4.8M raised\r
        phases[1] = Phase(3000, 160_000_000 * 10**18, 0);\r
        // Phase 3: $0.035 = 3500 millicents, 140M RNS, $4.9M raised\r
        phases[2] = Phase(3500, 140_000_000 * 10**18, 0);\r
        // Phase 4: $0.040 = 4000 millicents, 100M RNS, $4M raised\r
        phases[3] = Phase(4000, 100_000_000 * 10**18, 0);\r
        // Phase 5: $0.045 = 4500 millicents, 80M RNS, $3.6M raised\r
        phases[4] = Phase(4500, 80_000_000 * 10**18, 0);\r
        // Phase 6: $0.050 = 5000 millicents, 50M RNS, $2.5M raised\r
        phases[5] = Phase(5000, 50_000_000 * 10**18, 0);\r
        // Phase 7: $0.055 = 5500 millicents, 30M RNS, $1.65M raised\r
        phases[6] = Phase(5500, 30_000_000 * 10**18, 0);\r
\r
        // Total: 800M RNS = $27.45M (40% of 2B total supply)\r
    }\r
    \r
    /**\r
     * @dev Get current ETH price from Chainlink oracle\r
     * @return price in cents (e.g., 250000 = $2,500)\r
     */\r
    function getETHPrice() public view returns (uint256) {\r
        try ethPriceFeed.latestRoundData() returns (\r
            uint80,\r
            int256 price,\r
            uint256,\r
            uint256 updatedAt,\r
            uint80\r
        ) {\r
            require(price > 0, "Invalid price from oracle");\r
            require(updatedAt > block.timestamp - 1 hours, "Stale price data");\r
            \r
            // Chainlink ETH/USD typically has 8 decimals\r
            // Convert to cents: price * 100 / 10^8\r
            uint8 decimals = ethPriceFeed.decimals();\r
            return (uint256(price) * 100) / (10 ** decimals);\r
        } catch {\r
            // If oracle fails, use fallback price\r
            return fallbackEthPrice;\r
        }\r
    }\r
    \r
    /**\r
     * @dev Buy tokens with ETH\r
     */\r
    function buyWithETH() external payable nonReentrant whenNotPaused {\r
        require(msg.value > 0, "ETH amount must be > 0");\r
        \r
        // Get current ETH price from Chainlink\r
        uint256 ethPrice = getETHPrice();\r
        \r
        // Calculate USD amount with improved precision\r
        uint256 usdAmount = (msg.value * ethPrice) / 1 ether;\r
        require(usdAmount > 0, "Amount too small");\r
        \r
        uint256 tokenAmount = _processPurchase(msg.sender, usdAmount);\r
        \r
        emit TokensPurchased(msg.sender, usdAmount, tokenAmount, currentPhase, "ETH");\r
    }\r
    \r
    /**\r
     * @dev Buy tokens with USDT (6 decimals)\r
     * @param usdtAmount Amount of USDT (e.g., 1000000 = $1.00)\r
     */\r
    function buyWithUSDT(uint256 usdtAmount) external nonReentrant whenNotPaused {\r
        require(usdtAmount > 0, "USDT amount must be > 0");\r
        \r
        // Convert USDT (6 decimals) to cents: (amount * 100) / 1e6\r
        uint256 usdAmount = (usdtAmount * 100) / 1e6;\r
        require(usdAmount > 0, "Amount too small");\r
        \r
        // Transfer USDT from buyer\r
        usdtToken.safeTransferFrom(msg.sender, address(this), usdtAmount);\r
        \r
        uint256 tokenAmount = _processPurchase(msg.sender, usdAmount);\r
        \r
        emit TokensPurchased(msg.sender, usdAmount, tokenAmount, currentPhase, "USDT");\r
    }\r
    \r
    /**\r
     * @dev Buy tokens with USDC (6 decimals)\r
     * @param usdcAmount Amount of USDC (e.g., 1000000 = $1.00)\r
     */\r
    function buyWithUSDC(uint256 usdcAmount) external nonReentrant whenNotPaused {\r
        require(usdcAmount > 0, "USDC amount must be > 0");\r
        \r
        // Convert USDC (6 decimals) to cents: (amount * 100) / 1e6\r
        uint256 usdAmount = (usdcAmount * 100) / 1e6;\r
        require(usdAmount > 0, "Amount too small");\r
        \r
        // Transfer USDC from buyer\r
        usdcToken.safeTransferFrom(msg.sender, address(this), usdcAmount);\r
        \r
        uint256 tokenAmount = _processPurchase(msg.sender, usdAmount);\r
        \r
        emit TokensPurchased(msg.sender, usdAmount, tokenAmount, currentPhase, "USDC");\r
    }\r
    \r
    /**\r
     * @dev Internal function to process purchase with cross-phase support\r
     */\r
    function _processPurchase(address buyer, uint256 usdAmount) internal returns (uint256) {\r
        require(usdAmount > 0, "Amount must be greater than 0");\r
        require(totalRaisedUSD + usdAmount <= HARD_CAP_USD, "Hard cap reached");\r
        \r
        uint256 remainingUSD = usdAmount;\r
        uint256 totalTokensToReceive = 0;\r
        \r
        // Process purchase across multiple phases if needed\r
        while (remainingUSD > 0 && currentPhase < 7) {\r
            Phase storage phase = phases[currentPhase];\r
            uint256 tokensAvailable = phase.tokensAllocated - phase.tokensSold;\r
            \r
            if (tokensAvailable == 0) {\r
                // Current phase sold out, advance to next\r
                if (currentPhase < 6) {\r
                    currentPhase++;\r
                    emit PhaseAdvanced(currentPhase, phases[currentPhase].priceInMillicents);\r
                    continue;\r
                } else {\r
                    break; // No more phases\r
                }\r
            }\r
            \r
            // Calculate tokens for this phase\r
            // Formula: tokens = (usdInCents * 1000 * 10^18) / priceInMillicents\r
            // The 1000 converts cents to millicents\r
            uint256 tokensForThisPhase = (remainingUSD * 1000 * 10**18) / phase.priceInMillicents;\r
            \r
            if (tokensForThisPhase <= tokensAvailable) {\r
                // All remaining tokens fit in current phase\r
                totalTokensToReceive += tokensForThisPhase;\r
                phase.tokensSold += tokensForThisPhase;\r
                remainingUSD = 0;\r
            } else {\r
                // Partial fill: use all available tokens from this phase\r
                totalTokensToReceive += tokensAvailable;\r
                phase.tokensSold = phase.tokensAllocated;\r
                \r
                // Calculate USD spent in cents\r
                // Formula: usdSpent = (tokens * priceInMillicents) / (1000 * 10^18)\r
                uint256 usdSpentThisPhase = (tokensAvailable * phase.priceInMillicents) / (1000 * 10**18);\r
                \r
                // Safety check to prevent underflow\r
                if (usdSpentThisPhase >= remainingUSD) {\r
                    remainingUSD = 0;\r
                } else {\r
                    remainingUSD -= usdSpentThisPhase;\r
                }\r
                \r
                // Advance to next phase\r
                if (currentPhase < 6) {\r
                    currentPhase++;\r
                    emit PhaseAdvanced(currentPhase, phases[currentPhase].priceInMillicents);\r
                } else {\r
                    break; // No more phases\r
                }\r
            }\r
        }\r
        \r
        require(totalTokensToReceive > 0, "No tokens available");\r
        \r
        // Check contract has enough tokens\r
        uint256 contractBalance = rnsToken.balanceOf(address(this));\r
        require(contractBalance >= totalTokensToReceive, "Insufficient tokens in contract");\r
        \r
        // Calculate actual USD spent (in case of partial fill)\r
        uint256 actualUSDSpent = usdAmount - remainingUSD;\r
        \r
        // Update state\r
        totalRaisedUSD += actualUSDSpent;\r
        userPurchasedUSD[buyer] += actualUSDSpent;\r
        userTokensPurchased[buyer] += totalTokensToReceive;\r
        \r
        // Add buyer to list if first purchase\r
        if (!isBuyer[buyer]) {\r
            buyers.push(buyer);\r
            isBuyer[buyer] = true;\r
        }\r
        \r
        // Transfer tokens to buyer\r
        rnsToken.safeTransfer(buyer, totalTokensToReceive);\r
        \r
        return totalTokensToReceive;\r
    }\r
    \r
    /**\r
     * @dev Advance to next phase\r
     */\r
    function _advancePhase() internal {\r
        require(currentPhase < 6, "Already at final phase");\r
        currentPhase++;\r
        emit PhaseAdvanced(currentPhase, phases[currentPhase].priceInMillicents);\r
    }\r
    \r
    /**\r
     * @dev Manually advance phase (owner only)\r
     */\r
    function advancePhase() external onlyOwner {\r
        _advancePhase();\r
    }\r
    \r
    /**\r
     * @dev Update fallback ETH price (owner only)\r
     * Used only when Chainlink oracle fails\r
     */\r
    function updateFallbackETHPrice(uint256 newPriceInCents) external onlyOwner {\r
        require(newPriceInCents > 0, "Invalid price");\r
        fallbackEthPrice = newPriceInCents;\r
        emit FallbackETHPriceUpdated(newPriceInCents);\r
    }\r
    \r
    /**\r
     * @dev Update individual wallets (owner only)\r
     */\r
    function updatePresaleTreasuryWallet(address _wallet) external onlyOwner {\r
        require(_wallet != address(0), "Invalid address");\r
        presaleTreasuryWallet = _wallet;\r
        emit WalletsUpdated("PresaleTreasury", _wallet);\r
    }\r
    \r
    function updateLiquidityWallet(address _wallet) external onlyOwner {\r
        require(_wallet != address(0), "Invalid address");\r
        liquidityWallet = _wallet;\r
        emit WalletsUpdated("Liquidity", _wallet);\r
    }\r
    \r
    function updateTeamWallet(address _wallet) external onlyOwner {\r
        require(_wallet != address(0), "Invalid address");\r
        teamWallet = _wallet;\r
        emit WalletsUpdated("Team", _wallet);\r
    }\r
    \r
    function updateCommunityWallet(address _wallet) external onlyOwner {\r
        require(_wallet != address(0), "Invalid address");\r
        communityWallet = _wallet;\r
        emit WalletsUpdated("Community", _wallet);\r
    }\r
    \r
    function updateMarketingWallet(address _wallet) external onlyOwner {\r
        require(_wallet != address(0), "Invalid address");\r
        marketingWallet = _wallet;\r
        emit WalletsUpdated("Marketing", _wallet);\r
    }\r
    \r
    function updateDevelopmentWallet(address _wallet) external onlyOwner {\r
        require(_wallet != address(0), "Invalid address");\r
        developmentWallet = _wallet;\r
        emit WalletsUpdated("Development", _wallet);\r
    }\r
    \r
    function updateLegalWallet(address _wallet) external onlyOwner {\r
        require(_wallet != address(0), "Invalid address");\r
        legalWallet = _wallet;\r
        emit WalletsUpdated("Legal", _wallet);\r
    }\r
    \r
    /**\r
     * @dev Internal function to send funds to presale treasury\r
     * All raised funds go to presaleTreasuryWallet (MULTISIG)\r
     * FIXED: Uses .call() instead of .transfer() for multisig compatibility\r
     */\r
    function _distributeFunds(\r
        address tokenAddress,\r
        uint256 totalAmount\r
    ) internal {\r
        if (tokenAddress == address(0)) {\r
            // ETH transfer using .call() for multisig compatibility\r
            // No 2300 gas limit - allows Safe/Gnosis multisig to work\r
            (bool success, ) = payable(presaleTreasuryWallet).call{value: totalAmount}("");\r
            require(success, "ETH transfer failed");\r
        } else {\r
            // ERC20 token transfer\r
            IERC20 token = IERC20(tokenAddress);\r
            token.safeTransfer(presaleTreasuryWallet, totalAmount);\r
        }\r
        \r
        emit FundsWithdrawn(tokenAddress, totalAmount);\r
    }\r
    \r
    /**\r
     * @dev Withdraw ETH to designated wallets\r
     */\r
    function withdrawETH() external onlyOwner {\r
        uint256 balance = address(this).balance;\r
        require(balance > 0, "No ETH to withdraw");\r
        _distributeFunds(address(0), balance);\r
    }\r
    \r
    /**\r
     * @dev Withdraw USDT to designated wallets\r
     */\r
    function withdrawUSDT() external onlyOwner {\r
        uint256 balance = usdtToken.balanceOf(address(this));\r
        require(balance > 0, "No USDT to withdraw");\r
        _distributeFunds(address(usdtToken), balance);\r
    }\r
    \r
    /**\r
     * @dev Withdraw USDC to designated wallets\r
     */\r
    function withdrawUSDC() external onlyOwner {\r
        uint256 balance = usdcToken.balanceOf(address(this));\r
        require(balance > 0, "No USDC to withdraw");\r
        _distributeFunds(address(usdcToken), balance);\r
    }\r
    \r
    /**\r
     * @dev Withdraw all funds at once (owner only)\r
     */\r
    function withdrawAll() external onlyOwner {\r
        if (address(this).balance > 0) {\r
            _distributeFunds(address(0), address(this).balance);\r
        }\r
        \r
        uint256 usdtBalance = usdtToken.balanceOf(address(this));\r
        if (usdtBalance > 0) {\r
            _distributeFunds(address(usdtToken), usdtBalance);\r
        }\r
        \r
        uint256 usdcBalance = usdcToken.balanceOf(address(this));\r
        if (usdcBalance > 0) {\r
            _distributeFunds(address(usdcToken), usdcBalance);\r
        }\r
    }\r
    \r
    /**\r
     * @dev Burn unsold tokens (as per whitepaper requirement)\r
     * "Unsold tokens will be burned"\r
     */\r
    function burnUnsoldTokens() external onlyOwner {\r
        uint256 totalUnsold = 0;\r
        \r
        // Calculate total unsold tokens across all phases\r
        for (uint8 i = 0; i < 7; i++) {\r
            uint256 unsold = phases[i].tokensAllocated - phases[i].tokensSold;\r
            totalUnsold += unsold;\r
        }\r
        \r
        require(totalUnsold > 0, "No unsold tokens to burn");\r
        \r
        uint256 contractBalance = rnsToken.balanceOf(address(this));\r
        uint256 burnAmount = totalUnsold <= contractBalance ? totalUnsold : contractBalance;\r
        \r
        // Transfer to dead address (burn)\r
        rnsToken.safeTransfer(address(0xdead), burnAmount);\r
        \r
        emit UnsoldTokensBurned(burnAmount);\r
    }\r
    \r
    /**\r
     * @dev Emergency: withdraw unsold RNS tokens (before burn)\r
     */\r
    function withdrawUnsoldTokens(uint256 amount) external onlyOwner {\r
        require(amount > 0, "Amount must be > 0");\r
        uint256 balance = rnsToken.balanceOf(address(this));\r
        require(balance >= amount, "Insufficient balance");\r
        rnsToken.safeTransfer(owner(), amount);\r
    }\r
    \r
    /**\r
     * @dev Get contract's RNS token balance\r
     */\r
    function getContractTokenBalance() external view returns (uint256) {\r
        return rnsToken.balanceOf(address(this));\r
    }\r
    \r
    /**\r
     * @dev Pause presale (owner only)\r
     */\r
    function pause() external onlyOwner {\r
        _pause();\r
    }\r
    \r
    /**\r
     * @dev Unpause presale (owner only)\r
     */\r
    function unpause() external onlyOwner {\r
        _unpause();\r
    }\r
    \r
    /**\r
     * @dev Get current phase info\r
     */\r
    function getCurrentPhaseInfo() external view returns (\r
        uint8 phase,\r
        uint256 priceInMillicents,\r
        uint256 tokensAllocated,\r
        uint256 tokensSold,\r
        uint256 tokensRemaining\r
    ) {\r
        Phase memory p = phases[currentPhase];\r
        return (\r
            currentPhase,\r
            p.priceInMillicents,\r
            p.tokensAllocated,\r
            p.tokensSold,\r
            p.tokensAllocated - p.tokensSold\r
        );\r
    }\r
    \r
    /**\r
     * @dev Calculate tokens for USD amount (may span multiple phases)\r
     * This is an estimate - actual purchase may differ slightly\r
     */\r
    function calculateTokensForUSD(uint256 usdAmountInCents) external view returns (uint256) {\r
        uint256 remainingUSD = usdAmountInCents;\r
        uint256 totalTokens = 0;\r
        uint8 phaseIndex = currentPhase;\r
        \r
        while (remainingUSD > 0 && phaseIndex < 7) {\r
            Phase memory phase = phases[phaseIndex];\r
            uint256 tokensAvailable = phase.tokensAllocated - phase.tokensSold;\r
            \r
            if (tokensAvailable == 0) {\r
                phaseIndex++;\r
                continue;\r
            }\r
            \r
            // Calculate tokens using millicents\r
            uint256 tokensForThisPhase = (remainingUSD * 1000 * 10**18) / phase.priceInMillicents;\r
            \r
            if (tokensForThisPhase <= tokensAvailable) {\r
                totalTokens += tokensForThisPhase;\r
                break;\r
            } else {\r
                totalTokens += tokensAvailable;\r
                uint256 usdSpent = (tokensAvailable * phase.priceInMillicents) / (1000 * 10**18);\r
                if (usdSpent >= remainingUSD) {\r
                    break;\r
                }\r
                remainingUSD -= usdSpent;\r
                phaseIndex++;\r
            }\r
        }\r
        \r
        return totalTokens;\r
    }\r
    \r
    /**\r
     * @dev Get all wallet addresses for transparency\r
     */\r
    function getAllWallets() external view returns (\r
        address presaleTreasury,\r
        address liquidity,\r
        address team,\r
        address community,\r
        address marketing,\r
        address development,\r
        address legal\r
    ) {\r
        return (\r
            presaleTreasuryWallet,\r
            liquidityWallet,\r
            teamWallet,\r
            communityWallet,\r
            marketingWallet,\r
            developmentWallet,\r
            legalWallet\r
        );\r
    }\r
    \r
    /**\r
     * @dev Get user purchase info\r
     */\r
    function getUserInfo(address user) external view returns (\r
        uint256 totalPurchasedUSD,\r
        uint256 totalTokensPurchased\r
    ) {\r
        return (\r
            userPurchasedUSD[user],\r
            userTokensPurchased[user]\r
        );\r
    }\r
    \r
    /**\r
     * @dev Get all phases info\r
     */\r
    function getAllPhasesInfo() external view returns (\r
        uint256[7] memory pricesInMillicents,\r
        uint256[7] memory allocated,\r
        uint256[7] memory sold\r
    ) {\r
        for (uint8 i = 0; i < 7; i++) {\r
            pricesInMillicents[i] = phases[i].priceInMillicents;\r
            allocated[i] = phases[i].tokensAllocated;\r
            sold[i] = phases[i].tokensSold;\r
        }\r
        return (pricesInMillicents, allocated, sold);\r
    }\r
    \r
    /**\r
     * @dev Get presale progress percentage (in basis points, 10000 = 100%)\r
     */\r
    function getProgressPercentage() external view returns (uint256) {\r
        if (HARD_CAP_USD == 0) return 0;\r
        return (totalRaisedUSD * 10000) / HARD_CAP_USD;\r
    }\r
    \r
    /**\r
     * @dev Get total tokens allocated across all phases\r
     */\r
    function getTotalTokensAllocated() external pure returns (uint256) {\r
        return 800_000_000 * 10**18; // 800M RNS (40% of 2B supply)\r
    }\r
    \r
    /**\r
     * @dev Get total tokens sold across all phases\r
     */\r
    function getTotalTokensSold() external view returns (uint256) {\r
        uint256 total = 0;\r
        for (uint8 i = 0; i < 7; i++) {\r
            total += phases[i].tokensSold;\r
        }\r
        return total;\r
    }\r
    \r
    /**\r
     * @dev Get total number of unique buyers\r
     */\r
    function getTotalBuyers() external view returns (uint256) {\r
        return buyers.length;\r
    }\r
    \r
    /**\r
     * @dev Get paginated list of buyers\r
     * @param offset Starting index\r
     * @param limit Maximum number of buyers to return\r
     * @return buyerList Array of buyer addresses\r
     * @return total Total number of buyers\r
     */\r
    function getBuyersPaginated(uint256 offset, uint256 limit) \r
        external \r
        view \r
        returns (address[] memory buyerList, uint256 total) \r
    {\r
        total = buyers.length;\r
        \r
        if (offset >= total) {\r
            return (new address[](0), total);\r
        }\r
        \r
        uint256 end = offset + limit;\r
        if (end > total) {\r
            end = total;\r
        }\r
        \r
        uint256 size = end - offset;\r
        buyerList = new address[](size);\r
        \r
        for (uint256 i = 0; i < size; i++) {\r
            buyerList[i] = buyers[offset + i];\r
        }\r
        \r
        return (buyerList, total);\r
    }\r
    \r
    /**\r
     * @dev Get detailed info for multiple buyers\r
     * @param addresses Array of buyer addresses to query\r
     * @return usdAmounts Array of USD amounts purchased (in cents)\r
     * @return tokenAmounts Array of token amounts purchased\r
     */\r
    function getBuyersInfo(address[] calldata addresses) \r
        external \r
        view \r
        returns (uint256[] memory usdAmounts, uint256[] memory tokenAmounts) \r
    {\r
        uint256 length = addresses.length;\r
        usdAmounts = new uint256[](length);\r
        tokenAmounts = new uint256[](length);\r
        \r
        for (uint256 i = 0; i < length; i++) {\r
            usdAmounts[i] = userPurchasedUSD[addresses[i]];\r
            tokenAmounts[i] = userTokensPurchased[addresses[i]];\r
        }\r
        \r
        return (usdAmounts, tokenAmounts);\r
    }\r
    \r
    // Receive ETH\r
    receive() external payable {\r
        revert("Use buyWithETH() function");\r
    }\r
}"
    },
    "@openzeppelin/contracts/security/Pausable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}
"
    },
    "@openzeppelin/contracts/security/ReentrancyGuard.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}
"
    },
    "@openzeppelin/contracts/access/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
"
    },
    "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC-20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    /**
     * @dev An operation with an ERC-20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Variant of {safeTransfer} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransfer(IERC20 token, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Variant of {safeTransferFrom} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransferFrom(IERC20 token, address from, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     *
     * NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
     * only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
     * set here.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            safeTransfer(token, to, value);
        } else if (!token.transferAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
     * has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferFromAndCallRelaxed(
        IERC1363 token,
        address from,
        address to,
        uint256 value,
        bytes memory data
    ) internal {
        if (to.code.length == 0) {
            safeTransferFrom(token, from, to, value);
        } else if (!token.transferFromAndCall(from, to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
     * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
     * once without retrying, and relies on the returned value to be true.
     *
     * Reverts if the returned value is other than `true`.
     */
    function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            forceApprove(token, to, value);
        } else if (!token.approveAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            // bubble errors
            if iszero(success) {
                let ptr := mload(0x40)
                returndatacopy(ptr, 0, returndatasize())
                revert(ptr, returndatasize())
            }
            returnSize := returndatasize()
            returnValue := mload(0)
        }

        if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silently catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0)
        }
        return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
    }
}
"
    },
    "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}
"
    },
    "@openzeppelin/contracts/interfaces/IERC1363.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC1363.sol)

pragma solidity >=0.6.2;

import {IERC20} from "./IERC20.sol";
import {IERC165} from "./IERC165.sol";

/**
 * @title IERC1363
 * @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
 *
 * Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
 * after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
 */
interface IERC1363 is IERC20, IERC165 {
    /*
     * Note: the ERC-165 identifier for this interface is 0xb0202a11.
     * 0xb0202a11 ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @param data Additional data with no specified format, sent in call to `spender`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}
"
    },
    "@openzeppelin/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
"
    },
    "@openzeppelin/contracts/interfaces/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC165.sol)

pragma solidity >=0.4.16;

import {IERC165} from "../utils/introspection/IERC165.sol";
"
    },
    "@openzeppelin/contracts/interfaces/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC20.sol)

pragma solidity >=0.4.16;

import {IERC20} from "../token/ERC20/IERC20.sol";
"
    },
    "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/introspection/IERC165.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": false,
      "runs": 200
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "remappings": []
  }
}}