web3-monitor-bancor-crowdsale.js

/**
 * Johannes Zweng <john@zweng.at>, 2017
 *
 * This simple script just loads the 2 bancor contracts (Crowdsale and BNT Token)
 * into the geth client and then provides a single status function which you
 * can call on the geth console to query the current status of the crowdsale.
 *
 * Usage:
 * ------
 * 1) Start geth instance
 *    > geth
 *
 * 2) Download this script
 *
 * 3) In a second window attach to the running geth instance and load this script:
 *    > geth --preload /path/where/you/downloaded/this/script/web3-monitor-bancor-crowdsale.js attach
 *
 * 4) Now in the geth console you can call the bancorStatus() function as often
 *    as you want to see the current status of the Bancor crowdsale live from the
 *    ethereum blockchain:
 *
 * >  bancorStatus()
 *
 *
 * This will output the following:
 *
 * -------------------------------------------------------------------------------
 *  CURRENT STATE OF BANCOR CROWDSALE:
 * -------------------------------------------------------------------------------
 *  Time until public sale starts:                   21025 seconds (5.84 hours)
 *  Total ETH collected until now:                   0.01 ETH
 *  Is hidden cap already revealed:                  false
 *  Current active cap is:                           1000000 ETH
 *  Remaining ETH until (current) cap is reached:    999999.99 ETH
 *  Total number of BNT created until now:           2 BNT
 * -------------------------------------------------------------------------------
 * undefined
 *
 *
 */

// Note:
// the first long part of the script is just the contract interface (also called ABI)
// which is needed to instantiate the contracts and is just copied from the etherscan.io
// page (you can verify it there).

// The interesting part starts at the end around line 511.


// Bancor ABI JSON
// (copied from https://etherscan.io/address/0xBbc79794599b19274850492394004087cBf89710#code):
var bancorCrowdsaleABI = [{
    "constant": true,
    "inputs": [],
    "name": "BTCS_ETHER_CAP",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "TOKEN_PRICE_D",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [],
    "name": "contributeETH",
    "outputs": [{"name": "amount", "type": "uint256"}],
    "payable": true,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "DURATION",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [{"name": "_contribution", "type": "uint256"}],
    "name": "computeReturn",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_newOwner", "type": "address"}],
    "name": "transferTokenOwnership",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "endTime",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "totalEtherCap",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [],
    "name": "acceptTokenOwnership",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "beneficiary",
    "outputs": [{"name": "", "type": "address"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_token", "type": "address"}, {"name": "_to", "type": "address"}, {
        "name": "_amount",
        "type": "uint256"
    }],
    "name": "withdrawFromToken",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "TOKEN_PRICE_N",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_to", "type": "address"}, {"name": "_amount", "type": "uint256"}],
    "name": "issueTokens",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "version",
    "outputs": [{"name": "", "type": "string"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_token", "type": "address"}, {"name": "_to", "type": "address"}, {
        "name": "_amount",
        "type": "uint256"
    }],
    "name": "withdrawTokens",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "startTime",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [],
    "name": "acceptOwnership",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_disable", "type": "bool"}],
    "name": "disableTokenTransfers",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "owner",
    "outputs": [{"name": "", "type": "address"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "realEtherCapHash",
    "outputs": [{"name": "", "type": "bytes32"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_cap", "type": "uint256"}, {"name": "_key", "type": "uint256"}],
    "name": "enableRealCap",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [],
    "name": "contributeBTCs",
    "outputs": [{"name": "amount", "type": "uint256"}],
    "payable": true,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "totalEtherContributed",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "btcs",
    "outputs": [{"name": "", "type": "address"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_from", "type": "address"}, {"name": "_amount", "type": "uint256"}],
    "name": "destroyTokens",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "newOwner",
    "outputs": [{"name": "", "type": "address"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [{"name": "_cap", "type": "uint256"}, {"name": "_key", "type": "uint256"}],
    "name": "computeRealCap",
    "outputs": [{"name": "", "type": "bytes32"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "MAX_GAS_PRICE",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_newOwner", "type": "address"}],
    "name": "transferOwnership",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "token",
    "outputs": [{"name": "", "type": "address"}],
    "payable": false,
    "type": "function"
}, {
    "inputs": [{"name": "_token", "type": "address"}, {
        "name": "_startTime",
        "type": "uint256"
    }, {"name": "_beneficiary", "type": "address"}, {"name": "_btcs", "type": "address"}, {
        "name": "_realEtherCapHash",
        "type": "bytes32"
    }], "payable": false, "type": "constructor"
}, {"payable": true, "type": "fallback"}, {
    "anonymous": false,
    "inputs": [{"indexed": true, "name": "_contributor", "type": "address"}, {
        "indexed": false,
        "name": "_amount",
        "type": "uint256"
    }, {"indexed": false, "name": "_return", "type": "uint256"}],
    "name": "Contribution",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": false, "name": "_prevOwner", "type": "address"}, {
        "indexed": false,
        "name": "_newOwner",
        "type": "address"
    }],
    "name": "OwnerUpdate",
    "type": "event"
}];




// ABI of Bancor Token:
// (copied from https://etherscan.io/address/0x1F573D6Fb3F13d689FF844B4cE37794d79a7FF1C#code)
var bancorTokenABI = [{
    "constant": true,
    "inputs": [],
    "name": "name",
    "outputs": [{"name": "", "type": "string"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_spender", "type": "address"}, {"name": "_value", "type": "uint256"}],
    "name": "approve",
    "outputs": [{"name": "success", "type": "bool"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_disable", "type": "bool"}],
    "name": "disableTransfers",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "totalSupply",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_from", "type": "address"}, {"name": "_to", "type": "address"}, {
        "name": "_value",
        "type": "uint256"
    }],
    "name": "transferFrom",
    "outputs": [{"name": "success", "type": "bool"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "decimals",
    "outputs": [{"name": "", "type": "uint8"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "version",
    "outputs": [{"name": "", "type": "string"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "standard",
    "outputs": [{"name": "", "type": "string"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_token", "type": "address"}, {"name": "_to", "type": "address"}, {
        "name": "_amount",
        "type": "uint256"
    }],
    "name": "withdrawTokens",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [{"name": "", "type": "address"}],
    "name": "balanceOf",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [],
    "name": "acceptOwnership",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_to", "type": "address"}, {"name": "_amount", "type": "uint256"}],
    "name": "issue",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "owner",
    "outputs": [{"name": "", "type": "address"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "symbol",
    "outputs": [{"name": "", "type": "string"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_from", "type": "address"}, {"name": "_amount", "type": "uint256"}],
    "name": "destroy",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_to", "type": "address"}, {"name": "_value", "type": "uint256"}],
    "name": "transfer",
    "outputs": [{"name": "success", "type": "bool"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "transfersEnabled",
    "outputs": [{"name": "", "type": "bool"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [],
    "name": "newOwner",
    "outputs": [{"name": "", "type": "address"}],
    "payable": false,
    "type": "function"
}, {
    "constant": true,
    "inputs": [{"name": "", "type": "address"}, {"name": "", "type": "address"}],
    "name": "allowance",
    "outputs": [{"name": "", "type": "uint256"}],
    "payable": false,
    "type": "function"
}, {
    "constant": false,
    "inputs": [{"name": "_newOwner", "type": "address"}],
    "name": "transferOwnership",
    "outputs": [],
    "payable": false,
    "type": "function"
}, {
    "inputs": [{"name": "_name", "type": "string"}, {"name": "_symbol", "type": "string"}, {
        "name": "_decimals",
        "type": "uint8"
    }], "payable": false, "type": "constructor"
}, {
    "anonymous": false,
    "inputs": [{"indexed": false, "name": "_token", "type": "address"}],
    "name": "NewSmartToken",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": false, "name": "_amount", "type": "uint256"}],
    "name": "Issuance",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": false, "name": "_amount", "type": "uint256"}],
    "name": "Destruction",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": false, "name": "_prevOwner", "type": "address"}, {
        "indexed": false,
        "name": "_newOwner",
        "type": "address"
    }],
    "name": "OwnerUpdate",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": true, "name": "_from", "type": "address"}, {
        "indexed": true,
        "name": "_to",
        "type": "address"
    }, {"indexed": false, "name": "_value", "type": "uint256"}],
    "name": "Transfer",
    "type": "event"
}, {
    "anonymous": false,
    "inputs": [{"indexed": true, "name": "_owner", "type": "address"}, {
        "indexed": true,
        "name": "_spender",
        "type": "address"
    }, {"indexed": false, "name": "_value", "type": "uint256"}],
    "name": "Approval",
    "type": "event"
}];




var bancorCrowdsaleContractAddress = '0xBbc79794599b19274850492394004087cBf89710';
var bancorTokenContractAddress = '0x1F573D6Fb3F13d689FF844B4cE37794d79a7FF1C';

// // initiate contract instances
var bancorInstance = web3.eth.contract(bancorCrowdsaleABI).at(bancorCrowdsaleContractAddress);
var bntToken = web3.eth.contract(bancorTokenABI).at(bancorTokenContractAddress);

//
// Single helper function for the crowdsale below..
//


/**
 * Status function, just queries current state of bancor contract and
 * displays human-readable output to the console.
 */
function bancorStatus() {
    // call constant function at bancor contract
    var publicSaleHasAlreadyStarted, secondsUntilSale, saleFinished;
    var totalWei = bancorInstance.totalEtherContributed();
    var capInWei = bancorInstance.totalEtherCap();
    var totalBntInexistence = bntToken.totalSupply();
    var nowInMilliseconds = new Date().getTime();
    if (nowInMilliseconds >= bancorInstance.startTime() * 1000) {
        publicSaleHasAlreadyStarted = true;
        secondsUntilSale = 0;
    } else {
        publicSaleHasAlreadyStarted = false;
        secondsUntilSale = bancorInstance.startTime() - nowInMilliseconds / 1000;
    }
    
    // TODO BUG BUG: sorry, I forgot to use BigNumber here, this will overflow!!
    // just commenting it out fir the moment...
    //if (bancorInstance.totalEtherContributed() >= bancorInstance.totalEtherCap()) {
    //    saleFinished = true;
    //} else {
    //    saleFinished = false;
    //}
    saleFinished = false;
    
    console.log("-------------------------------------------------------------------------------");
    console.log(' CURRENT STATE OF BANCOR CROWDSALE:');
    console.log("-------------------------------------------------------------------------------");
    if (publicSaleHasAlreadyStarted) {
        console.log(' Has sale already started:                        YES');
    } else {
        // round hours to 2 decimals (thats why there is this * 100  / 100 stuff here)
        console.log(' Time until public sale starts:                   ' + Math.floor(secondsUntilSale) + ' seconds (' + Math.round((secondsUntilSale / 3600) * 100) / 100 + ' hours)');
    }

    console.log(' Total ETH collected until now:                   ' + web3.fromWei(totalWei, 'ether') + ' ETH');
    console.log(' Is hidden cap already revealed:                  ' + (capInWei != 1e+24));
    console.log(' Current active cap is:                           ' + web3.fromWei(capInWei, 'ether') + ' ETH');
    if (saleFinished) {
        console.log('');
        console.log(' ********************************************************************');
        console.log('  THE SALE IS FINISHED!!!!  NO MORE BNT CAN BE BOUGHT IN THIS ICO!!!');
        console.log(' ********************************************************************');
        console.log('');
    } else {
        console.log(' Remaining ETH until (current) cap is reached:    ' + web3.fromWei((capInWei - totalWei), 'ether') + ' ETH');
    }
    console.log(' Total number of BNT created until now:           ' + web3.fromWei(totalBntInexistence, 'ether') + ' BNT');
    console.log("-------------------------------------------------------------------------------");
}