/// SPDX-License-Identifier: MIT
//
// Symbol          : BRAINERS
// Name            : Brainers
// Total supply    : 371,000,000
// Decimals        : 18
// Bainers Social  : www.brainers.network
// Brainers Docs   : www.docs.brainers.network
// About contract  : www.token.brainers.network


pragma solidity ^0.8.11;

/**
 * @title Brainers Token
 * @dev Standard ERC20 implementation for the Brainers Token.
 */
contract Brainers {
    string public constant name = "Brainers";
    string public constant symbol = "BRAINERS";
    uint8 public constant decimals = 18;

    uint256 private _totalSupply;
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;

    address private immutable _socialNetworkAddress = 0x3170444AaefdBC05C11616c0212b07Dfa351185f;
    address private immutable _teamAddress = 0x7e898711B28d376297Be8B12AC9c4b18Cf098824;

    uint256 private _teamSupply;
    uint256 private _teamUnlockTime;
    uint256 private _teamReleaseAmount;
    uint256 private _teamReleaseInterval;
    uint256 private _teamReleaseStartTime;

    uint256 private _socialReleaseInterval;
    uint256 private _socialReleaseStartTime;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    modifier onlyUnlockedTeam() {
        require(block.timestamp >= _teamUnlockTime, "Team supply not unlocked yet");
        _;
    }

    modifier onlyOwner() {
        require(msg.sender == _teamAddress, "Only the owner can call this function");
        _;
    }

    constructor() {
        _totalSupply = 371_000_000 * 10 ** uint256(decimals);
        uint256 socialPercentage = 80;
        uint256 teamPercentage = 3;
        uint256 marketingPercentage = 5;
        uint256 developmentPercentage = 2;
        uint256 investorPercentage = 2;
        uint256 futureDevelopmentPercentage = 8;

        _teamSupply = (_totalSupply * teamPercentage) / 100;
        _teamUnlockTime = block.timestamp + (12 * 30 days); // Lock team supply for 12 months
        _teamReleaseAmount = (_teamSupply * 5) / 100; // 5% released every 30 days after 12 months
        _teamReleaseInterval = 30 days;

        _socialReleaseInterval = 30 days; // Monthly release for Brainers Social
        _socialReleaseStartTime = block.timestamp;

        _balances[_socialNetworkAddress] = (_totalSupply * socialPercentage) / 100;
        _balances[_teamAddress] = _teamSupply;
        _balances[address(this)] = (_totalSupply * (marketingPercentage + developmentPercentage + investorPercentage + futureDevelopmentPercentage)) / 100;

        emit Transfer(address(0), _socialNetworkAddress, _balances[_socialNetworkAddress]);
        emit Transfer(address(0), _teamAddress, _teamSupply);
        emit Transfer(address(0), address(this), _balances[address(this)]);
    }

    function totalSupply() external view returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) external view returns (uint256) {
        return _balances[account];
    }

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

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

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

    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, msg.sender, _allowances[sender][msg.sender] - amount);
        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue) external returns (bool) {
        _approve(msg.sender, spender, _allowances[msg.sender][spender] + addedValue);
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) external returns (bool) {
        _approve(msg.sender, spender, _allowances[msg.sender][spender] - subtractedValue);
        return true;
    }

    function releaseTeamSupply() external onlyUnlockedTeam {
        require(_teamReleaseStartTime + _teamReleaseInterval <= block.timestamp, "Team supply release interval not reached yet");

        uint256 releaseAmount = _teamReleaseAmount;
        if (releaseAmount > _teamSupply) {
            releaseAmount = _teamSupply;
        }

        _balances[_teamAddress] += releaseAmount;
        _teamSupply -= releaseAmount;
        _teamReleaseStartTime += _teamReleaseInterval;

        emit Transfer(address(this), _teamAddress, releaseAmount);
    }

    function releaseSocialSupply() external onlyOwner {
        require(block.timestamp >= _socialReleaseStartTime + _socialReleaseInterval, "Social supply release interval not reached yet");

        uint256 releaseAmount = (_totalSupply * 80) / 1000; // 10% of Brainers Social allocation
        require(releaseAmount > 0, "No more tokens to release");

        _balances[_socialNetworkAddress] += releaseAmount;
        _totalSupply -= releaseAmount;
        _socialReleaseStartTime += _socialReleaseInterval;

        emit Transfer(address(this), _socialNetworkAddress, releaseAmount);
    }

    function _transfer(address sender, address recipient, uint256 amount) internal {
        require(sender != address(0), "Transfer from the zero address");
        require(recipient != address(0), "Transfer to the zero address");
        require(_balances[sender] >= amount, "Insufficient balance");

        _balances[sender] -= amount;
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);
    }

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

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

{
  "compilationTarget": {
    "Brainers.sol": "Brainers"
  },
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}