263 lines
11 KiB
JavaScript
263 lines
11 KiB
JavaScript
const bobsFund = (function () {
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const productStr = "Bobs Fund";
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const magnitude = m => {
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switch (m) {
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case "thousand": return 1000;
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case "lakh": case "lakhs": return 100000;
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case "million": return 1000000;
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case "crore": case "crores": return 10000000;
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default: return null;
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}
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}
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const parseNumber = (str) => {
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let n = 0,
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g = 0;
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str.toLowerCase().replace(/,/g, '').split(" ").forEach(s => {
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if (!isNaN(s))
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g = parseFloat(s);
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else {
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let m = magnitude(s);
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if (m !== null) {
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n += m * g;
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g = 0;
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}
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}
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});
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return n + g;
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}
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const parsePeriod = (str) => {
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let P = '', n = 0;
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str.toLowerCase().replace(/,/g, '').split(" ").forEach(s => {
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if (!isNaN(s))
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n = parseFloat(s);
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else switch (s) {
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case "year(s)": case "year": case "years": P += (n + 'Y'); n = 0; break;
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case "month(s)": case "month": case "months": P += (n + 'M'); n = 0; break;
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case "day(s)": case "day": case "days": P += (n + 'D'); n = 0; break;
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}
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});
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return P;
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}
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const dateFormat = (date = null) => {
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let d = (date ? new Date(date) : new Date()).toDateString();
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return [d.substring(8, 10), d.substring(4, 7), d.substring(11, 15)].join(" ");
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}
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const dateAdder = function (start_date, duration) {
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let date = new Date(start_date);
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let y = parseInt(duration.match(/\d+Y/)),
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m = parseInt(duration.match(/\d+M/)),
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d = parseInt(duration.match(/\d+D/));
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if (!isNaN(y))
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date.setFullYear(date.getFullYear() + y);
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if (!isNaN(m))
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date.setMonth(date.getMonth() + m);
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if (!isNaN(d))
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date.setDate(date.getDate() + d);
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return date;
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}
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function calcNetValue(BTC_base, BTC_net, USD_base, USD_net, amount, fee) {
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let gain, interest, net;
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gain = (BTC_net - BTC_base) / BTC_base;
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interest = gain * (1 - fee)
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net = amount / USD_base;
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net += net * interest;
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return net * USD_net;
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}
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function stringify_main(BTC_base, USD_base, start_date, duration, investments, fee = 0, tapoutWindow = null, tapoutInterval = null) {
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let result = [
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`${productStr}`,
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`Base Value: ${BTC_base} USD`,
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`USD INR rate at start: ${USD_base}`,
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`Start date: ${dateFormat(start_date)}`,
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`Duration: ${duration}`,
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`Management Fee: ${fee != 0 ? fee + "%" : "0 (Zero)"}`
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];
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if (tapoutInterval) {
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if (Array.isArray(tapoutInterval)) {
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let x = tapoutInterval.pop(),
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y = tapoutInterval.join(", ")
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tapoutInterval = `${y} and ${x}`
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}
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result.push(`Tapout availability: ${tapoutWindow} after ${tapoutInterval}`);
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}
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result.push(`Investment(s) (INR): ${investments.map(f => `${f[0].trim()}-${f[1].trim()}`).join("; ")}`);
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return result.join("|");
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}
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function stringify_continue(fund_id, investments) {
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return [
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`${productStr}`,
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`continue: ${fund_id}`,
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`Investment(s) (INR): ${investments.map(f => `${f[0].trim()}-${f[1].trim()}`).join("; ")}`
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].join("|");
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}
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function stringify_end(fund_id, floID, end_date, BTC_net, USD_net, amount, ref_sign, payment_ref) {
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return [
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`${productStr}`,
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`close: ${fund_id}`,
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`Investor: ${floID}`,
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`End value: ${BTC_net} USD`,
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`Date of withdrawal: ${dateFormat(end_date)}`,
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`USD INR rate at end: ${USD_net}`,
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`Amount withdrawn: Rs ${amount} via ${payment_ref}`,
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`Reference: ${ref_sign}`
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].join("|");
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}
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function parse_details(data) {
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let funds = {};
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funds.investments = {};
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if (!Array.isArray(data))
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data = [data];
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data.forEach((fd, i) => {
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if (!/close: [a-z0-9]{64}\|/.test(fd)) { // not a closing tx
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let cont = /continue: [a-z0-9]{64}\|/.test(fd);
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fd.split("|").forEach(d => {
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d = d.split(': ');
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if (["invesment(s) (inr)", "investment(s) (inr)"].includes(d[0].toLowerCase()))
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d[1].split(";").forEach(a => {
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a = a.split("-");
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let floID = a[0].replace(/\s/g, ''); //for removing spaces (trailing) if any
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funds["investments"][floID] = funds["investments"][floID] || {};
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funds["investments"][floID].amount = parseNumber(a[1]);
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funds["investments"][floID].i = i;
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});
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else if (!cont)
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switch (d[0].toLowerCase()) {
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case "start date":
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funds["start_date"] = new Date(d[1]); break;
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case "base value":
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funds["BTC_base"] = parseNumber(d[1].slice(0, -4)); break;
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case "usd inr rate at start":
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funds["USD_base"] = parseFloat(d[1]); break;
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case "duration":
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funds["duration"] = parsePeriod(d[1]); break;
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case "management fee":
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funds["fee"] = parseFloat(d[1]); break;
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case "tapout availability":
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let x = d[1].toLowerCase().split("after")
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funds["tapoutInterval"] = x[1].match(/\d+ [a-z]+/gi).map(y => parsePeriod(y))
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funds["topoutWindow"] = parsePeriod(x[0]); break;
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}
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});
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} else {
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let floID, details = {};
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fd.split("|").forEach(d => {
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d = d.split(': ');
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switch (d[0].toLowerCase()) {
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case "investor":
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floID = d[1]; break;
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case "end value":
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details["BTC_net"] = parseNumber(d[1].slice(0, -4)); break;
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case "date of withdrawal":
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details["endDate"] = new Date(d[1]); break;
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case "amount withdrawn":
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details["amountFinal"] = parseNumber(d[1].match(/\d.+ via/).toString());
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details["payment_refRef"] = d[1].match(/via .+/).toString().substring(4); break;
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case "usd inr rate at end":
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details["USD_net"] = parseFloat(d[1]); break;
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case "reference":
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details["refSign"] = d[1]; break;
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}
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});
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if (floID) {
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funds.investments[floID] = funds.investments[floID] || {};
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funds.investments[floID].closed = details;
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funds.investments[floID].closed.i = i;
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}
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}
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});
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return funds;
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}
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return {
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productStr,
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dateAdder,
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dateFormat,
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calcNetValue,
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parse: parse_details,
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stringify: {
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main: stringify_main,
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continue: stringify_continue,
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end: stringify_end
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}
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}
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})();
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function refreshBlockchainData(newOnly = false) {
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return new Promise((resolve, reject) => {
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compactIDB.readData("appendix", "lastTx").then(lastTx => {
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var query_options = { tx: true, filter: d => d.startsWith(bobsFund.productStr) };
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query_options.senders = floExchangeAPI.nodeList.concat(floGlobals.adminID); //sentOnly: true,
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if (typeof lastTx == 'number') //lastTx is tx count (*backward support)
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query_options.ignoreOld = lastTx;
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else if (typeof lastTx == 'string') //lastTx is txid of last tx
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query_options.after = lastTx;
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floBlockchainAPI.readData(floGlobals.adminID, query_options).then(result => {
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compactIDB.readAllData("funds").then(funds => {
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let writeKeys = new Set();
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result.items.reverse().forEach(d => {
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if (/close: /i.test(d.data)) {
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let ctx = d.data.match(/close: [0-9a-z]{64}/i).toString().split(": ")[1];
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funds[ctx].push({
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txid: d.txid,
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data: d.data
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})
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writeKeys.add(ctx);
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} else if (d.senders.has(floGlobals.adminID)) {
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if (/continue: /i.test(d.data)) {
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let ctx = d.data.match(/continue: [0-9a-z]{64}/i).toString().split(": ")[1];
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funds[ctx].push({
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txid: d.txid,
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data: d.data
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})
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writeKeys.add(ctx);
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} else if (/start: /i.test(d.data)) {
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funds[d.txid] = [{
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txid: d.txid,
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data: d.data
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}]
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writeKeys.add(d.txid);
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}
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}
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})
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writeKeys = Array.from(writeKeys);
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Promise.all(writeKeys.map(k => compactIDB.writeData("funds", funds[k], k))).then(results => {
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compactIDB.writeData('appendix', result.lastItem, "lastTx");
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resolve(newOnly ? writeKeys.map(k => funds[k]) : funds)
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}).catch(error => reject(error))
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}).catch(error => reject(error))
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}).catch(error => reject(error))
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}).catch(error => reject(error))
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})
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}
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function getCurrentRates() {
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let fetchData = api => new Promise((resolve, reject) => {
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fetch(api).then(response => {
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if (response.ok)
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response.json().then(data => resolve(data))
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else
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reject(response)
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}).catch(error => reject(error))
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})
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return new Promise((resolve, reject) => {
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fetchData(`https://bitpay.com/api/rates`).then(result => {
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let BTC_USD, BTC_INR, USD_INR
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for (let i of result)
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i.code == "USD" ? BTC_USD = i.rate : i.code == "INR" ? BTC_INR = i.rate : null;
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USD_INR = BTC_INR / BTC_USD;
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resolve({
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BTC_USD,
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BTC_INR,
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USD_INR
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})
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}).catch(error => reject(error))
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})
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} |