pragma solidity 0.4.11;

contract ERC20 {
    function totalSupply() constant returns (uint256 totalSupply) {}
    function balanceOf(address _owner) constant returns (uint256 balance) {}
    function transfer(address _recipient, uint256 _value) returns (bool success) {}
    function transferFrom(address _from, address _recipient, uint256 _value) returns (bool success) {}
    function approve(address _spender, uint256 _value) returns (bool success) {}
    function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}

    event Transfer(address indexed _from, address indexed _recipient, uint256 _value);
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}

contract StandardToken is ERC20 {

	uint256 public totalSupply;
	mapping (address => uint256) balances;
    mapping (address => mapping (address => uint256)) allowed;
    
    modifier when_can_transfer(address _from, uint256 _value) {
        if (balances[_from] >= _value) _;
    }

    modifier when_can_receive(address _recipient, uint256 _value) {
        if (balances[_recipient] + _value > balances[_recipient]) _;
    }

    modifier when_is_allowed(address _from, address _delegate, uint256 _value) {
        if (allowed[_from][_delegate] >= _value) _;
    }

    function transfer(address _recipient, uint256 _value)
        when_can_transfer(msg.sender, _value)
        when_can_receive(_recipient, _value)
        returns (bool o_success)
    {
        balances[msg.sender] -= _value;
        balances[_recipient] += _value;
        Transfer(msg.sender, _recipient, _value);
        return true;
    }

    function transferFrom(address _from, address _recipient, uint256 _value)
        when_can_transfer(_from, _value)
        when_can_receive(_recipient, _value)
        when_is_allowed(_from, msg.sender, _value)
        returns (bool o_success)
    {
        allowed[_from][msg.sender] -= _value;
        balances[_from] -= _value;
        balances[_recipient] += _value;
        Transfer(_from, _recipient, _value);
        return true;
    }

    function balanceOf(address _owner) constant returns (uint256 balance) {
        return balances[_owner];
    }

    function approve(address _spender, uint256 _value) returns (bool o_success) {
        allowed[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);
        return true;
    }

    function allowance(address _owner, address _spender) constant returns (uint256 o_remaining) {
        return allowed[_owner][_spender];
    }
}

contract T8CToken is StandardToken {

	//FIELDS
	string public name = "T8Coin";
    string public symbol = "T8C";
    uint public decimals = 3;

	//INITIALIZATION
	address public minter; //address that able to mint new tokens
	uint public icoEndTime; 

	uint illiquidBalance_amount;
	mapping (uint => address) illiquidBalance_index;
	mapping (address => uint) public illiquidBalance; //Balance of 'Frozen funds'


	// called by crowdsale contract
	modifier only_minter {
		if (msg.sender != minter) throw;
		_;
	}

	// Can only be called if the `crowdfunder` is allowed to mint tokens. Any
	// time before `endMintingTime`.
	modifier when_mintable {
		if (now > icoEndTime) throw; // todo need bounty create token?
		_;
	}

	// Initialization contract assigns address of crowdfund contract and end time.
	function T8CToken (address _minter, uint _icoEndTime) {
		minter = _minter;
		icoEndTime = _icoEndTime;
	}

	// Create new tokens when called by the crowdfund contract.
	// Only callable before the end time.
	function createToken(address _recipient, uint _value)
		when_mintable
		only_minter
		returns (bool o_success)
	{
		balances[_recipient] += _value;
		totalSupply += _value;
		return true;
	}

		// Create an illiquidBalance which cannot be traded until admin make it liquid.
	// Can only be called by crowdfund contract before the end time.
	function createIlliquidToken(address _recipient, uint _value)
		when_mintable
		only_minter
		returns (bool o_success)
	{
		illiquidBalance_index[illiquidBalance_amount] = _recipient;
		illiquidBalance[_recipient] += _value;
		illiquidBalance_amount++;

		totalSupply += _value;
		return true;
	}

	// Make sender's illiquid balance liquid when called after lockout period.
	function makeLiquid()
		only_minter
	{
		for (uint i=0; i<illiquidBalance_amount; i++)
		{
			address investor = illiquidBalance_index[i];
			balances[investor] += illiquidBalance[investor];
			illiquidBalance[investor] = 0;
		}
	}

	// Transfer amount of tokens from sender account to recipient.
	// Only callable after the crowd fund end date.
	function transfer(address _recipient, uint _amount)
		returns (bool o_success)
	{
		return super.transfer(_recipient, _amount);
	}

	// Transfer amount of tokens from a specified address to a recipient.
	// Only callable after the crowd fund end date.
	function transferFrom(address _from, address _recipient, uint _amount)
		returns (bool o_success)
	{
		return super.transferFrom(_from, _recipient, _amount);
	}
}