groupon.ethereum

if (tx.value < 100 * block.basefee) {
    return
}

if (tx.data[0] == 'BUY') {
    // buy deal
    payment = tx.value - 100 * block.basefee
    shareholders = contract.storage['sh']
    deal = contract.storage[tx.data[1]]
    if (payment >= deal.price*1.02) {
        mktx(deal.owner, payment - deal.price, 0, 0)
        piece = deal.price * 0.02 / sh.length
        shareholders.forEach(function (s) {
            mktx(s, piece, 0, 0)
        })
        deal.buyers.push([tx.sender, block.timestamp])
        contract.storage[tx.data[1]] = deal
    }
}
else if (tx.data[0] == 'OFFER') {
    // offer deal
    if (contract.storage[tx.sender].rating < tx.data[2] * 0.9) {
        contract.storage[tx.data[1]] = {
            price: tx.data[2],
            owner: tx.sender,
            buyers: []
        }
    }
}
else if (tx.data[0] == 'RATE') {
    // rate deal/customer
    
}
else if (tx.data[0] == 'INVEST') {
    // invest in the business
    
}