Mirror/brk
1
0
Fork 0
mirror of https://github.com/bitcoinresearchkit/brk.git synced 2026-07-17 14:08:10 -07:00
Code Issues Packages Projects Releases Wiki Activity

heatmaps: part 11

Browse Source
This commit is contained in:
nym21
2026-06-01 01:04:14 +02:00
parent 7181d59966
commit 087a3b6fd6
3 changed files with 80 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files
website/src/heatmap/oracle.js
+34 -28
View File
@@ -9,6 +9,7 @@ import { defaultTooltip } from "./tooltip.js";
const BINS = 2400;
const MIN_LOG = -8;
const BINS_PER_DECADE = 200;
const MAX_LOG = MIN_LOG + (BINS - 1) / BINS_PER_DECADE;
export const oracleRawHeatmapOption = createOracleHeatmapOption("raw", "Raw");
export const oracleEmaHeatmapOption = createOracleHeatmapOption("ema", "EMA");
@@ -24,7 +25,8 @@ function createOracleHeatmapOption(mode, name) {
name,
title: `Oracle ${name} Histogram`,
points: {
fetch: (date, signal) => fetchOraclePoints(mode, date, signal),
fetch: (date, signal, onPoints) =>
fetchOraclePoints(mode, date, signal, onPoints),
},
grid: createAverageGrid({
yStart: MIN_LOG,
@@ -40,40 +42,44 @@ function createOracleHeatmapOption(mode, name) {
* @param {"raw" | "ema"} mode
* @param {string} date
* @param {AbortSignal} signal
* @param {(points: HeatmapPoints) => void} [onPoints]
* @returns {Promise<HeatmapPoints>}
*/
async function fetchOraclePoints(mode, date, signal) {
const values = await firstAvailable((onValue) =>
mode === "raw"
? brk.getOracleHistogramRaw(date, { signal, onValue })
: brk.getOracleHistogramEma(date, { signal, onValue }),
async function fetchOraclePoints(mode, date, signal, onPoints) {
const values = await fetchOracleValues(
mode,
date,
signal,
onPoints ? (values) => onPoints(toOraclePoints(values)) : undefined,
);
return {
kind: "implicit",
yStart: MIN_LOG,
yStep: 1 / BINS_PER_DECADE,
values,
};
return toOraclePoints(values);
}
/**
* @param {(onValue: (value: number[]) => void) => Promise<number[]>} fetch
* @param {"raw" | "ema"} mode
* @param {string} date
* @param {AbortSignal} signal
* @param {(values: number[]) => void} [onValue]
* @returns {Promise<number[]>}
*/
function firstAvailable(fetch) {
return new Promise((resolve, reject) => {
let settled = false;
/** @param {number[]} value */
const resolveOnce = (value) => {
if (settled) return;
settled = true;
resolve(value);
};
fetch(resolveOnce).then(resolveOnce, (error) => {
if (!settled) reject(error);
});
});
function fetchOracleValues(mode, date, signal, onValue) {
return (
mode === "raw"
? brk.getOracleHistogramRaw(date, { signal, onValue })
: brk.getOracleHistogramEma(date, { signal, onValue })
);
}
/**
* @param {number[]} values
* @returns {HeatmapPoints}
*/
function toOraclePoints(values) {
return {
kind: "implicit",
yStart: MAX_LOG,
yStep: -1 / BINS_PER_DECADE,
values,
};
}