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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";

/**
 * @title ASPYR Reflect Token
 * @notice 
 *  - Total supply = 50M (no future minting)
 *  - 4% reflection on each transfer (proportionally redistributed to all holders)
 *  - Two-of-two "multisig-like" for major actions (burning)
 *  - Supply-based 5-phase ICO
 *  - Trustless 50/50 ETH split
 *
 *  This code is for DEMONSTRATION ONLY and NOT AUDITED.
 */
contract AspyrReflect is ReentrancyGuard {
    // -------------------------------------------------------
    // Basic Info
    // -------------------------------------------------------
    string private constant _NAME = "ASPYR Network";
    string private constant _SYMBOL = "ASPYR";
    uint8 private constant _DECIMALS = 18;

    // -------------------------------------------------------
    // Reflection Mechanics
    // -------------------------------------------------------
    uint256 private constant MAX = type(uint256).max;

    uint256 private constant _tTotal = 50_000_000 * 10**_DECIMALS;  // 50 million
    uint256 private _rTotal = (MAX - (MAX % _tTotal)); // reflection total

    // 4% reflection fee on each transfer
    uint256 public constant REFLECTION_FEE = 4; // in percent

    // Mapping of addresses' reflected balances
    mapping(address => uint256) private _rOwned;
    mapping(address => mapping(address => uint256)) private _allowances;

    // -------------------------------------------------------
    // Two-of-two Governance
    // -------------------------------------------------------
    address public owner1;
    address public owner2;

    bool public isBurnProposed;
    address public burnProposer;
    address public proposedBurnFrom;
    uint256 public proposedBurnAmount;

    modifier onlyOwners() {
        require(msg.sender == owner1 || msg.sender == owner2, "Not an authorized owner");
        _;
    }

    // -------------------------------------------------------
    // ICO Supply-Based Phases
    // (21M total if fully sold)
    // -------------------------------------------------------
    uint256[5] public phaseSupply = [
        5_000_000 * 10**_DECIMALS, 
        4_000_000 * 10**_DECIMALS, 
        3_000_000 * 10**_DECIMALS, 
        4_000_000 * 10**_DECIMALS, 
        5_000_000 * 10**_DECIMALS
    ];
    uint256[5] public phaseRate = [1000, 900, 800, 700, 600]; // tokens per ETH
    uint256 public currentPhase; // 0..4

    // -------------------------------------------------------
    // Constructor
    // -------------------------------------------------------
    constructor(address _owner1, address _owner2) {
        require(_owner1 != address(0), "Invalid owner1");
        require(_owner2 != address(0), "Invalid owner2");

        owner1 = _owner1;
        owner2 = _owner2;

        // Initially, all tokens belong to the contract
        _rOwned[address(this)] = _rTotal;
    }

    // -------------------------------------------------------
    // ERC20-Like Public Functions
    // -------------------------------------------------------
    function name() public pure returns (string memory) {
        return _NAME;
    }

    function symbol() public pure returns (string memory) {
        return _SYMBOL;
    }

    function decimals() public pure returns (uint8) {
        return _DECIMALS;
    }

    function totalSupply() public pure returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view returns (uint256) {
        return tokenFromReflection(_rOwned[account]);
    }

    function allowance(address owner, address spender) public view returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) public returns (bool) {
        _approve(msg.sender, spender, amount);
        return true;
    }

    function transfer(address recipient, uint256 amount) public returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }

    function transferFrom(address from, address recipient, uint256 amount) public returns (bool) {
        _transfer(from, recipient, amount);

        uint256 currentAllowance = _allowances[from][msg.sender];
        require(currentAllowance >= amount, "transfer amount exceeds allowance");
        unchecked {
            _approve(from, msg.sender, currentAllowance - amount);
        }
        return true;
    }

    // -------------------------------------------------------
    // Reflection Internal Functions
    // -------------------------------------------------------
    function reflectionFromToken(uint256 tAmount) public view returns (uint256) {
        require(tAmount <= _tTotal, "Amount > total supply");
        uint256 currentRate = _getReflectionRate();
        return tAmount * currentRate;
    }

    function tokenFromReflection(uint256 rAmount) public view returns (uint256) {
        require(rAmount <= _rTotal, "rAmount > _rTotal");
        uint256 currentRate = _getReflectionRate();
        return rAmount / currentRate;
    }

    function _getReflectionRate() private view returns (uint256) {
        return _rTotal / _tTotal;
    }

    function _transfer(address sender, address recipient, uint256 tAmount) private {
        require(sender != address(0), "transfer from zero address");
        require(recipient != address(0), "transfer to zero address");
        require(tAmount > 0, "transfer amount > 0");

        uint256 currentRate = _getReflectionRate();
        uint256 rAmount = tAmount * currentRate;

        uint256 tFee = (tAmount * REFLECTION_FEE) / 100;
        uint256 tTransferAmount = tAmount - tFee;

        uint256 rFee = tFee * currentRate;
        uint256 rTransferAmount = rAmount - rFee;

        _rOwned[sender] -= rAmount;
        _rOwned[recipient] += rTransferAmount;
        _rTotal -= rFee;

        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _approve(address owner, address spender, uint256 amount) private {
        require(owner != address(0), "approve from zero address");
        require(spender != address(0), "approve to zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    // -------------------------------------------------------
    // Two-of-two Burn Logic
    // -------------------------------------------------------
    function proposeBurn(address from, uint256 tAmount) external onlyOwners {
        require(!isBurnProposed, "Burn proposal active");
        require(from != address(0), "Cannot burn from zero address");
        require(tAmount > 0, "Burn > 0");
        require(balanceOf(from) >= tAmount, "Insufficient balance to burn");

        burnProposer = msg.sender;
        proposedBurnFrom = from;
        proposedBurnAmount = tAmount;
        isBurnProposed = true;
    }

    function confirmBurn() external onlyOwners {
        require(isBurnProposed, "No burn proposal");
        require(msg.sender != burnProposer, "Same owner cannot confirm burn");

        uint256 currentRate = _getReflectionRate();
        uint256 rAmount = proposedBurnAmount * currentRate;

        _rOwned[proposedBurnFrom] -= rAmount;
        _rTotal -= rAmount;

        isBurnProposed = false;
        burnProposer = address(0);
        proposedBurnFrom = address(0);
        proposedBurnAmount = 0;

        emit Transfer(proposedBurnFrom, address(0), 0);
    }

    // -------------------------------------------------------
    // Supply-Based 5-Phase ICO
    // -------------------------------------------------------
    function buyTokens() external payable nonReentrant {
        require(currentPhase < 5, "All ICO phases ended");
        require(msg.value > 0, "No ETH sent");

        uint256 leftoverEth = msg.value;
        uint256 tokensPurchasedTotal = 0;

        while (leftoverEth > 0 && currentPhase < 5) {
            uint256 rate = phaseRate[currentPhase];
            uint256 possibleTokens = leftoverEth * rate;
            uint256 phaseLeft = phaseSupply[currentPhase];

            if (possibleTokens <= phaseLeft) {
                phaseSupply[currentPhase] -= possibleTokens;
                tokensPurchasedTotal += possibleTokens;
                leftoverEth = 0;
            } else {
                tokensPurchasedTotal += phaseLeft;
                leftoverEth -= (phaseLeft / rate); 
                phaseSupply[currentPhase] = 0;
                currentPhase++;
            }
        }

        require(tokensPurchasedTotal > 0, "No tokens purchased");
        _tokenTransferFromContract(msg.sender, tokensPurchasedTotal);

        if (leftoverEth > 0 && currentPhase == 5) {
            payable(msg.sender).transfer(leftoverEth);
        }
    }

    function _tokenTransferFromContract(address recipient, uint256 tAmount) private {
        uint256 currentRate = _getReflectionRate();
        uint256 rAmount = tAmount * currentRate;

        require(_rOwned[address(this)] >= rAmount, "Contract has insufficient tokens");

        _rOwned[address(this)] -= rAmount;
        _rOwned[recipient] += rAmount;

        emit Transfer(address(this), recipient, tAmount);
    }

    // -------------------------------------------------------
    // Trustless 50/50 ETH Split
    // -------------------------------------------------------
    function withdrawAndSplitETH() external onlyOwners nonReentrant {
        uint256 bal = address(this).balance;
        require(bal > 0, "No ETH to split");

        uint256 half = bal / 2;
        payable(owner1).transfer(half);
        payable(owner2).transfer(address(this).balance);
    }

    // -------------------------------------------------------
    // Receive / Fallback
    // -------------------------------------------------------
    receive() external payable {
        // accept ETH
    }

    fallback() external payable {
        revert("fallback not supported");
    }

    // -------------------------------------------------------
    // ERC20 Events
    // -------------------------------------------------------
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// 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;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "remappings": []
}

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tateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawAndSplitETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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0000000000000000000000001cf926b88514b447feebb244f14aa2b5cf528a2e000000000000000000000000dfdab98ef21417861e7402a53f07c589b99e027c

-----Decoded View---------------
Arg [0] : _owner1 (address): 0x1Cf926b88514B447fEEBb244F14aa2b5CF528a2E
Arg [1] : _owner2 (address): 0xdFdAB98ef21417861e7402a53F07c589B99e027c

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000001cf926b88514b447feebb244f14aa2b5cf528a2e
Arg [1] : 000000000000000000000000dfdab98ef21417861e7402a53f07c589b99e027c