AtreidesAssetsFree/client/price/btc-explorer.js

// Generated, do not edit. sha256:f1a362d8f5a38865a6fcd067548c9a9a2cf682e9141ad905ab0415dc770a62a9
import { CONFIG } from '../../shared/config.js';
import { activeConnection } from '../data/connections.js';
import { t } from '../i18n/index.js';

export async function explorerBase() {
  return (await activeConnection('btc_explorer')).url;
}

const HTTP_TIMEOUT_MS = 12000;
const HTTP_BACKOFF_MS = [2000, 5000, 10000];
export async function fetchJson(url, label, options = {}) {
  let laatste;
  for (let poging = 0; poging <= HTTP_BACKOFF_MS.length; poging++) {
    if (poging) await new Promise(r => setTimeout(r, HTTP_BACKOFF_MS[poging - 1]));
    const ctrl = new AbortController();
    const timer = setTimeout(() => ctrl.abort(), HTTP_TIMEOUT_MS);
    try {
      const res = await fetch(url, { ...options, signal: ctrl.signal });
      if (res.ok) return await res.json();
      laatste = new Error(t('integrations.price.callFailed', { label, status: res.status }));
      if (res.status < 500 && res.status !== 429) throw laatste;
    } catch (e) {
      if (e === laatste) throw e;
      laatste = e.name === 'AbortError'
        ? new Error(t('integrations.price.callTimeout', { label, s: HTTP_TIMEOUT_MS / 1000 }))
        : e;
    } finally {
      clearTimeout(timer);
    }
  }
  throw laatste;
}

export async function addressInfo(addr) {
  const base = await explorerBase();
  const d = await fetchJson(`${base}/api/address/${addr}`, t('integrations.price.labelAddress', { adres: addr }));
  const balance_sats = d.chain_stats.funded_txo_sum - d.chain_stats.spent_txo_sum;
  const tx_count = d.chain_stats.tx_count + d.mempool_stats.tx_count;
  return { balance_sats, tx_count };
}

const PAGE = 25;
const MAX_PAGES = 200;
const lastConfirmedTxid = batch => {
  for (let i = batch.length - 1; i >= 0; i--) {
    if (batch[i].status && batch[i].status.confirmed) return batch[i].txid;
  }
  return null;
};
export async function addressTxs(addr) {
  const base = await explorerBase();
  const all = await fetchJson(`${base}/api/address/${addr}/txs`, t('integrations.price.labelAddressTxs', { adres: addr }));

  let cursor = lastConfirmedTxid(all);
  let pages = 0;
  while (cursor && pages < MAX_PAGES) {
    await new Promise(r => setTimeout(r, 150));
    let batch;
    try {
      batch = await fetchJson(`${base}/api/address/${addr}/txs/chain/${cursor}`, t('integrations.price.labelAddressTxsPage'));
    } catch (e) {
      console.warn(`[addressTxs] pagination stopped for ${addr}: ${e.message}`);
      break;
    }
    if (!batch.length) break;
    all.push(...batch);
    if (batch.length < PAGE) break;
    cursor = batch[batch.length - 1].txid;
    pages++;
  }
  return all;
}