35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
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// modules/data/bitcoin.js — Bitcoin block height polling
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import { state } from '../core/state.js';
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const blockHeightDisplay = document.getElementById('block-height-display');
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const blockHeightValue = document.getElementById('block-height-value');
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export async function fetchBlockHeight() {
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try {
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const res = await fetch('https://blockstream.info/api/blocks/tip/height');
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if (!res.ok) return;
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const height = parseInt(await res.text(), 10);
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if (isNaN(height)) return;
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if (state.lastBlockHeight !== 0 && height !== state.lastBlockHeight) {
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if (blockHeightDisplay) {
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blockHeightDisplay.classList.remove('fresh');
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void blockHeightDisplay.offsetWidth;
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blockHeightDisplay.classList.add('fresh');
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}
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state.starPulseIntensity = 1.0;
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}
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state.lastBlockHeight = height;
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state.blockHeight = height;
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if (blockHeightValue) blockHeightValue.textContent = height.toLocaleString();
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} catch (_) {
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// Network unavailable — keep last known value
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}
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}
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export function startBlockPolling() {
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fetchBlockHeight();
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setInterval(fetchBlockHeight, 60000);
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}
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