MyBit-Tokensale

MyBit Tokensale contracts

Details

The contracts release 100,000 MYB tokens everyday. Investors can contribute Ether at any day and they will split the days release of MYB in proportion to the Ether they contributed. Investors can withdraw their purchased MYB the next day. 50% of the received Ether will go towards the MyBit decentralized development fund, and the other 50% will go towards the MyBit foundation to be used for development.

• Length: 365 days
• Tokens: 100,000 MYB released every day
• Funding Currency: Ether
• Distribution: 50% DDF, 50% MyBit Foundation

Testing

Clone the repo

git clone https://github.com/MyBitFoundation/MyBit-Tokensale.tech.git

To get the dependencies run:

npm install

In another terminal window run:

ganache-cli  

Run tests

truffle test

Guide

The contract keeps track of how much WEI it has received for a certain 24 hour period. An investor can choose any future day he wishes, or else send Ether into the current days funding period.

To get the start-time of the sale call the public variable start:

uint public start()

To send funds call fund() with the particular day you wish to fund.

function fund(uint16 _day)
payable
public
returns (bool) {
    require(addContribution(msg.sender, msg.value, _day));
    return true;
}

Note you must call fund() with WEI and the day must not have dayFinished

To see if a day has finished call dayFinished() with any day:

function dayFinished(uint16 _day)
public
view
returns (bool) {
  return dayFor(now) > _day;
}

You can see the day for a given timestamp using:

function dayFor(uint _timestamp)
public
view
returns (uint16) {
    return uint16(_timestamp.sub(start).div(24 hours));
}

To fund multiple future days you can call batchFund():

function batchFund(uint16[] _day)
payable
external
returns (bool) {
  require(_day.length <= 50);
  require(msg.value >= _day.length);   // need at least 1 wei per day
  uint amountPerDay = msg.value.div(_day.length);
  assert (amountPerDay.mul(_day.length) == msg.value);
  for (uint8 i = 0; i < _day.length; i++){
    require(addContribution(msg.sender, amountPerDay, _day[i]));
  }
  return true;
}

To withdraw tokens call withdraw() from the funders account

function withdraw(uint16 _day)
public
returns (bool) {
    require(dayFinished(_day), "day has not finished funding");
    Day storage thisDay = day[_day];
    uint amount = getTokensOwed(msg.sender, _day);
    delete thisDay.weiContributed[msg.sender];
    require(mybToken.transfer(msg.sender, amount), "couldnt transfer MYB to contributor");
    emit LogTokensCollected(msg.sender, amount, _day);
    return true;
}

To withdraw tokens from several days call batchWithdraw from the contributors account

function batchWithdraw(uint16[] _day)
external
returns (bool) {
  uint amount;
  require(_day.length <= 50);
    for (uint i = 0; i < _day.length; i++){
      require(dayFinished(_day[i]));
      uint amountToAdd = getTokensOwed(msg.sender, _day[i]);
      amount = amount.add(amountToAdd);
      delete day[_day[i]].weiContributed[msg.sender];
      emit LogTokensCollected(msg.sender, amountToAdd, _day[i]);
    }
    require(mybToken.transfer(msg.sender, amount));
    return true;
}

To see a contributors current amount of MYB tokens owed:

function getTokensOwed(address _contributor, uint16 _day)
public
view
returns (uint) {}

Or to see the total amount for a list of days:

function getTotalTokensOwed(address _contributor, uint16[] _days)
public
view
returns (uint amount);

To find the current day call:

function currentDay()
public
view
returns (uint16) {
  return dayFor(now);
}

⚠️ This application is unstable and has not undergone any rigorous security audits. Use at your own risk.

MyBit Platform™ CHE-177.186.963