pragma solidity ^0.4.18;

// ----------------------------------------------------------------------------
// 'PatrickHuynh' token contract
//
// Deployed to : 0x5A86f0cafD4ef3ba4f0344C138afcC84bd1ED222
// Symbol      : PATRICKHUYNH
// Name        : Patrick Huynh
// Total supply: 100
// Decimals    : 18
//
// Enjoy.
//
// (c) by Moritz Neto with BokkyPooBah / Bok Consulting Pty Ltd Au 2017. The MIT Licence.
// ----------------------------------------------------------------------------


// ----------------------------------------------------------------------------
// Safe maths
// ----------------------------------------------------------------------------
contract SafeMath {
function safeAdd(uint a, uint b) public pure returns (uint c) {
	c = a + b;
	require(c >= a);
}
function safeSub(uint a, uint b) public pure returns (uint c) {
	require(b <= a);
	c = a - b;
}
function safeMul(uint a, uint b) public pure returns (uint c) {
	c = a * b;
	require(a == 0 || c / a == b);
}
function safeDiv(uint a, uint b) public pure returns (uint c) {
	require(b > 0);
	c = a / b;
}
}


// ----------------------------------------------------------------------------
// ERC Token Standard #20 Interface
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// ----------------------------------------------------------------------------
contract ERC20Interface {
function totalSupply() public constant returns (uint);
function balanceOf(address tokenOwner) public constant returns (uint balance);
function allowance(address tokenOwner, address spender) public constant returns (uint remaining);
function transfer(address to, uint tokens) public returns (bool success);
function approve(address spender, uint tokens) public returns (bool success);
function transferFrom(address from, address to, uint tokens) public returns (bool success);

event Transfer(address indexed from, address indexed to, uint tokens);
event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}


// ----------------------------------------------------------------------------
// Contract function to receive approval and execute function in one call
//
// Borrowed from MiniMeToken
// ----------------------------------------------------------------------------
contract ApproveAndCallFallBack {
function receiveApproval(address from, uint256 tokens, address token, bytes data) public;
}


// ----------------------------------------------------------------------------
// Owned contract
// ----------------------------------------------------------------------------
contract Owned {
address public owner;
address public newOwner;

event OwnershipTransferred(address indexed _from, address indexed _to);

function Owned() public {
	owner = msg.sender;
}

modifier onlyOwner {
	require(msg.sender == owner);
	_;
}

function transferOwnership(address _newOwner) public onlyOwner {
	newOwner = _newOwner;
}
function acceptOwnership() public {
	require(msg.sender == newOwner);
	emit OwnershipTransferred(owner, newOwner);
	owner = newOwner;
	newOwner = address(0);
}
}


// ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ----------------------------------------------------------------------------
contract PatrickHuynhToken is ERC20Interface, Owned, SafeMath {
string public symbol;
string public  name;
uint8 public decimals;
uint public _totalSupply;

mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;


// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
function PatrickHuynhToken() public {
	symbol = "PATRICKHUYNH";
	name = "Patrick Huynh Token";
	decimals = 18;
	_totalSupply = 100000000000000000000;
	balances[0xF40902aeF9faF9aE17A1d9E1381dBEcD2325E625] = _totalSupply;
	emit Transfer(address(0), 0xF40902aeF9faF9aE17A1d9E1381dBEcD2325E625, _totalSupply);
}


// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public constant returns (uint) {
	return _totalSupply  - balances[address(0)];
}


// ------------------------------------------------------------------------
// Get the token balance for account tokenOwner
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public constant returns (uint balance) {
	return balances[tokenOwner];
}


// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to to account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
	balances[msg.sender] = safeSub(balances[msg.sender], tokens);
	balances[to] = safeAdd(balances[to], tokens);
	emit Transfer(msg.sender, to, tokens);
	return true;
}


// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces 
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
	allowed[msg.sender][spender] = tokens;
	emit Approval(msg.sender, spender, tokens);
	return true;
}


// ------------------------------------------------------------------------
// Transfer tokens from the from account to the to account
// 
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the from account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
	balances[from] = safeSub(balances[from], tokens);
	allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
	balances[to] = safeAdd(balances[to], tokens);
	emit Transfer(from, to, tokens);
	return true;
}


// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public constant returns (uint remaining) {
	return allowed[tokenOwner][spender];
}


// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account. The spender contract function
// receiveApproval(...) is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
	allowed[msg.sender][spender] = tokens;
	emit Approval(msg.sender, spender, tokens);
	ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
	return true;
}


// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () public payable {
	revert();
}


// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
	return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
}