// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

/**
 * @title AyrisSplitter
 * @dev Otomatik ödeme dağıtıcı sözleşmesi. 
 * %1 Platform payını keser, %99 Merchant (Firma) adresine gönderir.
 */

interface IERC20 {
    function transfer(address to, uint256 value) external returns (bool);
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

contract AyrisSplitter {
    address public platformAddress;
    uint256 public constant PLATFORM_FEE_BPS = 100; // %1 (100/10000)
    uint256 public constant BPS_DENOMINATOR = 10000;

    event PaymentProcessed(address indexed merchant, address token, uint256 totalAmount, uint256 platformShare, uint256 merchantShare);

    constructor(address _platformAddress) {
        require(_platformAddress != address(0), "Gecersiz platform adresi");
        platformAddress = _platformAddress;
    }

    /**
     * @dev Native coin (ETH, MATIC, BNB) ödemesini böler.
     */
    function payNative(address merchant) external payable {
        require(msg.value > 0, "Tutar 0 olamaz");
        require(merchant != address(0), "Gecersiz merchant adresi");

        uint256 platformShare = (msg.value * PLATFORM_FEE_BPS) / BPS_DENOMINATOR;
        uint256 merchantShare = msg.value - platformShare;

        payable(platformAddress).transfer(platformShare);
        payable(merchant).transfer(merchantShare);

        emit PaymentProcessed(merchant, address(0), msg.value, platformShare, merchantShare);
    }

    /**
     * @dev ERC20/TRC20 (USDT, USDC) ödemesini böler.
     * Kullanıcı önce bu sözleşmeye 'approve' vermelidir.
     */
    function payToken(address tokenAddress, uint256 amount, address merchant) external {
        require(amount > 0, "Tutar 0 olamaz");
        require(merchant != address(0), "Gecersiz merchant adresi");
        
        IERC20 token = IERC20(tokenAddress);

        uint256 platformShare = (amount * PLATFORM_FEE_BPS) / BPS_DENOMINATOR;
        uint256 merchantShare = amount - platformShare;

        // 1. Ödemeyi müşteriden sözleşmeye çek
        require(token.transferFrom(msg.sender, address(this), amount), "Transfer basarisiz");

        // 2. Platform payını gönder
        require(token.transfer(platformAddress, platformShare), "Platform payi iletilemedi");

        // 3. Merchant payını gönder
        require(token.transfer(merchant, merchantShare), "Merchant payi iletilemedi");

        emit PaymentProcessed(merchant, tokenAddress, amount, platformShare, merchantShare);
    }
}