92 lines
2.3 KiB
TypeScript
92 lines
2.3 KiB
TypeScript
import qs from 'query-string';
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export function stripHexPrefix(value: string) {
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return value.replace('0x', '');
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}
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const toFixed = (num: string, digits: number = 3) => {
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const [integerPart, fractionPart = ''] = num.split('.');
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if (fractionPart.length === digits) {
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return num;
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}
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if (fractionPart.length < digits) {
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return `${integerPart}.${fractionPart.padEnd(digits, '0')}`;
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}
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let decimalPoint = integerPart.length;
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const formattedFraction = fractionPart.slice(0, digits);
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const integerArr = `${integerPart}${formattedFraction}`.split('').map(str => +str);
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let carryOver = Math.floor((+fractionPart[digits] + 5) / 10);
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// grade school addition / rounding
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for (let i = integerArr.length - 1; i >= 0; i--) {
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const currVal = integerArr[i] + carryOver;
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const newVal = currVal % 10;
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carryOver = Math.floor(currVal / 10);
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integerArr[i] = newVal;
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if (i === 0 && carryOver > 0) {
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integerArr.unshift(0);
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decimalPoint++;
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i++;
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}
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}
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const strArr = integerArr.map(n => n.toString());
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strArr.splice(decimalPoint, 0, '.');
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if (strArr[strArr.length - 1] === '.') {
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strArr.pop();
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}
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return strArr.join('');
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};
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export function formatNumber(num: string, digits?: number): string {
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const parts = toFixed(num, digits).split('.');
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// Remove trailing zeroes on decimal (If there is a decimal)
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if (parts[1]) {
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parts[1] = parts[1].replace(/0+$/, '');
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// If there's nothing left, remove decimal altogether
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if (!parts[1]) {
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parts.pop();
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}
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}
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// Commafy the whole numbers
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parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ',');
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return parts.join('.');
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}
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export function formatZcashURI(address: string, amount?: string | number, memo?: string) {
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const params: any = {};
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if (amount) {
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params.amount = amount;
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}
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if (memo) {
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params.memo = memo;
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}
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return `zcash:${address}?${qs.stringify(params)}`;
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}
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export function formatZcashCLI(address: string, amount?: string | number, memo?: string) {
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const tx: any = { address };
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if (amount) {
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tx.amount = parseFloat(amount.toString());
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}
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if (memo) {
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tx.memo = memo;
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}
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return `zcash-cli z_sendmany YOUR_ADDRESS '${JSON.stringify([tx])}'`;
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}
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export function formatTxExplorerUrl(txid: string) {
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return `https://explorer.zcha.in/transactions/${txid}`;
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}
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