vote-for-release.scala

@Callable(i)
func voteForRelease(id: Int) = {

  	# receiving campaign parameters
    let endTimestamp = getIntegerValue(this, keyEndTimestamp(id))
    let implEndTimestamp = getIntegerValue(this, keyImplEndTimestamp(id))
    let votePower = getIntegerValue(this, keyUserFunded(id, i.callerPublicKey.toBase58String()))
    let targetSum = getIntegerValue(this, keyTargetSum(id))
    let raised = getIntegerValue(this, keyRaised(id))
    let released = getBooleanValue(this, keyReleasedTokens(id))
    let owner = keyOwner(id)

  	# receiving the number of tokens sent by investors who already voted "in favor"
    let votedPower = getIntegerValue(this, keyReleaseVotes(id))


  	# making sure that the campaign execution time has passed
    if (implEndTimestamp > lastBlock.timestamp) then throw("This target is not finished yet") else

  	# making sure that the campaign was successful and the target sum has been collected
    if (raised < targetSum) then throw("This target didn't reach target") else

  	# making sure that the current investor has not yet voted on the campaign
    if (released) then throw("This target was released already") else

    # проверяем, что текущий инвестор уже не голосовал за кампанию
    if (isDefined(getBoolean(this, keyUserVoted(id, i.callerPublicKey.toBase58String())))) then throw("You already voted for the target") else


	  # if the sum of the number of those who have already voted "In favor" plus the current investor’s vote
	  # exceeds 50%, we transfer the tokens to the campaign initiator and consider the campaign complete
	  # otherwise we increase the number of tokens from investors who have already voted "In favor"
    if ((votedPower + votePower) > (raised / 2)) then {
        # the campaign initiator receives 80% of the collected sum
    	  # and the dApp keeps the remaining 20% as a fee
        let ownerPrize = raised - (raised / 1 / 5)
        [
            IntegerEntry(keyReleaseVotes(id), votedPower + votePower),
            BooleanEntry(keyReleasedTokens(id), true),
            ScriptTransfer(addressFromPublicKey(owner.toBytes()), ownerPrize, thanksTokenId)
        ]
    }else {
        [
            IntegerEntry(keyReleaseVotes(id), votedPower + votePower)
        ]
    }
}