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utils.js
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utils.js
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const qrcode = require('qrcode-terminal');
const chalk = require("chalk");
const figlet = require("figlet");
const clear = require('clear');
const inquirer = require("inquirer");
const validate = require('bitcoin-address-validation');
const explorer = require('./explorer/explorer');
const wallet = require('./wallet/wallet');
const config = require('./config');
const conversion = require('./wallet/conversion_utils');
const menu_main = require('./interfaces/main');
const menu_txs_history = require('./interfaces/txs_history');
const menu_send_0 = require('./interfaces/send_tx_0');
exports.printQR = function (address) {
return qrcode.generate(address, {small: true})
};
exports.printLogo = function () {
console.log(
chalk.green(
figlet.textSync(require('./package.json').name)
)
)
};
exports.printVersion = function () {
console.log('v' + require('./package.json').version)
};
exports.printText = function (text, color) {
if(color === 'green') console.log(chalk.green(text));
if(color === 'red') console.log(chalk.red(text));
if(color === 'yellow') console.log(chalk.yellow(text));
if(!color) console.log(text);
};
exports.clear = function () {
clear();
};
exports.showMenu = async function (interface) {
const answer = await inquirer.prompt(interface.questions);
interface.callback(answer);
return answer;
};
exports.showTxsHistory = async function () {
let addressList = wallet.getAddresses();
this.printText("\n--- transaction history ---\n");
let txs = [];
for (let i in addressList){
if(addressList[i].chain_stats || addressList[i].mempool_stats) {
let address = addressList[i].address;
let txs = await explorer.getAddressTxs(address);
for (let k in txs) {
this.printText("txid: " + txs[k].txid, "green");
if(txs[k].status.confirmed) {
this.printText("confirmed: " + txs[k].status.confirmed, "green");
} else {
this.printText("confirmed: " + txs[k].status.confirmed, "yellow");
}
for (let n in txs[k].vin) {
if(txs[k].vin[n].scriptpubkey_address === address) {
let amount = conversion.satoshiToBtc(txs[k].vin[n].value);
this.printText('amount: ' + amount);
this.printText('type: sent\n', "green");
}
}
for (let n in txs[k].vout) {
if(txs[k].vout[n].scriptpubkey_address === address) {
let amount = conversion.satoshiToBtc(txs[k].vout[n].value);
this.printText('amount: ' + amount);
this.printText('type: received\n', "green");
}
}
}
}
}
this.showMenu(menu_txs_history);
};
exports.askTransactionDetails = async function () {
let addressList = wallet.getAddresses();
let balance = wallet.getBalance();
// wallet info
this.printText("\n--- prepare transaction ---\n");
this.printText("confirmed balance: " + conversion.satoshiToBtc(balance.confirmed),"green");
this.printText("unconfirmed balance: " + conversion.satoshiToBtc(balance.unconfirmed),"yellow");
this.printText("\n");
let feeRates = await explorer.getEstimatedFees();
// network fees
this.printText("-- estimated network fees (sat/vB) --");
this.printText("2 blocks: " + feeRates['2'], "yellow");
this.printText("6 blocks: " + feeRates['6'], "yellow");
this.printText("1008 blocks: " + feeRates['1008'], "yellow");
this.printText("\n");
let data = await this.showMenu(menu_send_0);
if(data.amount >= balance.confirmed + balance.unconfirmed) {
this.printText("amount is too big", "red");
this.askTransactionDetails();
}
let tx = await wallet.prepareTx(addressList, data.address, data.amount, feeRates[data.priority]);
// console.log(tx.extractTransaction());
};
exports.validateAddress = function (address) {
return !!validate(address)[config.network];
};
exports.refresh = async function (refreshData) {
if(refreshData) await wallet.refresh();
let blockhash = await explorer.getLastBlockHash();
let blocksheight = await explorer.getLastBlockHeight();
let depositAddress = await wallet.getCurrentAddress();
let balance = wallet.getBalance();
// blockchain info
this.printText("network: " + config.network, "red");
this.printText("blockchain height: " + blocksheight);
this.printText("last block hash: " + blockhash);
// wallet info
this.printText("confirmed balance: " + conversion.satoshiToBtc(balance.confirmed),"green");
this.printText("unconfirmed balance: " + conversion.satoshiToBtc(balance.unconfirmed),"yellow");
// deposit address
this.printText("deposit address: " + depositAddress);
this.printQR(depositAddress);
this.showMenu(menu_main);
};