/*
2020-01-09 - get the gains generated by my automated ETC trading.
2020-10-23 - fix problem because API requires windowing to handle more than 50 rows, implemented windowing.
*/

const key          = 'SOOOJ7OhVCOpJE4DAWz8v5B25UpdYya9buF8DFAkHzmUab5E9i0PlEPh'; // API Key
const secret       = 'UytAbgU8ty3n5a+JhaoIlcfh8zM4OBGY6PCC+Cfg2NI4waVzM52BBp9qmmyczrTDQpeha8q3nHeE/p7wNWKiVA=='; // API Private Key
const KrakenClient = require('kraken-api');
const kraken       = new KrakenClient(key, secret);
 
(async () => {
    try {		
		let params={
                        ofs : 0		
		};
		try {
			let allBalances=await kraken.api('Balance');
			//console.log(JSON.stringify(allBalances));
			let etcUsdQuote = await kraken.api('Ticker', { pair : 'XETCZUSD' });
			//console.log(JSON.stringify(etcUsdQuote));
			let allTransactions = await kraken.api('TradesHistory', params);
	
			let dailyResults = [];
			//console.log("Get Trade History ",JSON.stringify(allTransactions,null,"  "));
			let allTradeIDs=Object.keys(allTransactions.result.trades);
			let sumUSD=0;
			let sumCommission=0;
			let numTrans=allTradeIDs.length;
			for (let i=0;i<numTrans;i++){
				params.ofs+=1;
				let theTrade=allTransactions.result.trades[allTradeIDs[i]];
				if (theTrade.pair==="XETCZUSD") {
					let multiplier=1;
					if (theTrade.type==="buy") {
						multiplier=-1;
					}
						
					sumUSD += Number(theTrade.cost) * multiplier;
					sumCommission += Number(theTrade.fee);
					let transactionTime = x=new Date(theTrade.time*1000);
					let transactionDate = transactionTime.toISOString().split("T")[0];
					if (dailyResults[transactionDate] === undefined) {
						dailyResults[transactionDate] =0;
					}
					dailyResults[transactionDate] += (Number(theTrade.cost) * multiplier)
					dailyResults[transactionDate] -= Number(theTrade.fee);
				}
					
				// console.log(params.ofs,JSON.stringify(theTrade));
				if ((params.ofs % 50) == 0) { // Not really great style to update the for condition var here, but it works...
					console.log("Load more results; offset ",params.ofs);
					params.nonce = new Date() * 1000;
					allTransactions = await kraken.api('TradesHistory', params);
					allTradeIDs=allTradeIDs.concat(Object.keys(allTransactions.result.trades));
					numTrans=allTradeIDs.length;
				}
			}
			
			Object.keys(dailyResults).forEach(date=>{
			//	console.log(date," -> ",dailyResults[date]);
			}); 
			
			console.log("# trades               : ", params.ofs-1);
			console.log("SUM USD                : ", sumUSD);
			console.log("SUM fees               : ", sumCommission);
			let netGain = sumUSD - sumCommission;
			console.log("Net Gain               : ", netGain);
			
			let numCoinsHeld = Number(allBalances.result.XETC);
			console.log("# coins Held           : ", numCoinsHeld);
			let sellPrice = Number(etcUsdQuote.result.XETCZUSD.b[0]);
			console.log("Current Price          : ", sellPrice);
			let worthHeldCoins = numCoinsHeld * sellPrice;
			console.log("Worth held coins       : ", worthHeldCoins);
			let netLiq = netGain + worthHeldCoins;
			console.log("Net Liquidation Gain   : " , netLiq);
		

		} catch (ex) {
			console.error("Error getting trade history: ", ex.message);
		}
	} catch (ex) {
		console.error("Hit general Error-handler: ", ex.message, "\n", ex.stack);
	}
})();



/*
{
  "error": [],
  "result": {
    "trades": {
      "TUJ6CI-YOYLW-S6LDBQ": {
        "ordertxid": "OWBBBM-UQS7T-BH5RTY",
        "postxid": "TKH2SE-M7IF5-CFI7LT",
        "pair": "XETCZUSD",
        "time": 1578609866.7625,
        "type": "sell",
        "ordertype": "market",
        "price": "5.11900000",
        "cost": "51.18999999",
        "fee": "0.13309399",
        "vol": "10.00000000",
        "margin": "0.00000000",
        "misc": ""
      },
      "T7VTAJ-W5HBL-KVG2BQ": {
        "ordertxid": "OJKOCP-RFMVO-D5AD3W",
        "postxid": "TKH2SE-M7IF5-CFI7LT",
        "pair": "XETCZUSD",
        "time": 1578604045.7998,
        "type": "buy",
        "ordertype": "market",
        "price": "5.01700000",
        "cost": "50.17000000",
        "fee": "0.13044200",
        "vol": "10.00000000",
        "margin": "0.00000000",
        "misc": ""
      },
      "TEXK75-SRRBQ-5DUVIG": {
        "ordertxid": "ON4CNP-RDAWZ-A77OMH",
        "postxid": "TKH2SE-M7IF5-CFI7LT",
        "pair": "XETCZUSD",
        "time": 1578600324.9445,
        "type": "sell",
        "ordertype": "market",
        "price": "5.11800000",
        "cost": "51.18000001",
        "fee": "0.13306799",
        "vol": "10.00000000",
        "margin": "0.00000000",
        "misc": ""
      },
      "TAJGH2-677GW-PLUYFF": {
        "ordertxid": "OZFB5U-D4PX7-TA23BP",
        "postxid": "TKH2SE-M7IF5-CFI7LT",
        "pair": "XETCZUSD",
        "time": 1578599314.3601,
        "type": "sell",
        "ordertype": "limit",
        "price": "5.08400000",
        "cost": "50.84000000",
        "fee": "0.13218400",
        "vol": "10.00000000",
        "margin": "0.00000000",
        "misc": ""
      },
      "TRPXQ3-FSM2Q-6BC3P7": {
        "ordertxid": "OTJC4F-6MXXU-JHICN4",
        "postxid": "TKH2SE-M7IF5-CFI7LT",
        "pair": "XETCZUSD",
        "time": 1578590114.8608,
        "type": "buy",
        "ordertype": "market",
        "price": "4.89700000",
        "cost": "48.97000000",
        "fee": "0.12732200",
        "vol": "10.00000000",
        "margin": "0.00000000",
        "misc": ""
      },
      "TYIRWY-3JLW4-3GM4OO": {
        "ordertxid": "OZB455-X4YWN-X3A7J4",
        "postxid": "TKH2SE-M7IF5-CFI7LT",
        "pair": "XETCZUSD",
        "time": 1578586116.836,
        "type": "buy",
        "ordertype": "limit",
        "price": "4.96600000",
        "cost": "44.69400000",
        "fee": "0.11620440",
        "vol": "9.00000000",
        "margin": "0.00000000",
        "misc": ""
      },
      "TDZJSE-PCTDA-5H6GHW": {
        "ordertxid": "OUUCEQ-BQRXP-AWNWUX",
        "postxid": "TKH2SE-M7IF5-CFI7LT",
        "pair": "XETCZUSD",
        "time": 1578560505.5051,
        "type": "buy",
        "ordertype": "market",
        "price": "5.01500000",
        "cost": "5.01500000",
        "fee": "0.01303900",
        "vol": "1.00000000",
        "margin": "0.00000000",
        "misc": ""
      },
      "TTNMCG-CPYYR-DIMUQY": {
        "ordertxid": "O4SEFZ-GFJWL-JHQE6F",
        "postxid": "TKH2SE-M7IF5-CFI7LT",
        "pair": "XETHZUSD",
        "time": 1578499686.8045,
        "type": "buy",
        "ordertype": "limit",
        "price": "140.82000",
        "cost": "50.00000",
        "fee": "0.13000",
        "vol": "0.35506320",
        "margin": "0.00000",
        "misc": ""
      }
    },
    "count": 8
  }
}
*/