From 17bd1f5286bd04d06380400941e11bac4a191aa1 Mon Sep 17 00:00:00 2001
From: Alex Holliday <ajhollid@gmail.com>
Date: Tue, 31 Dec 2024 13:42:49 -0800
Subject: [PATCH] Add temporary normalization functoins

---
 Server/utils/dataUtils.js | 52 +++++++++++++++++++++++++++++++++++++--
 1 file changed, 50 insertions(+), 2 deletions(-)

diff --git a/Server/utils/dataUtils.js b/Server/utils/dataUtils.js
index b0f8a2fd1..25f26d439 100644
--- a/Server/utils/dataUtils.js
+++ b/Server/utils/dataUtils.js
@@ -8,12 +8,23 @@ const calculatePercentile = (arr, percentile) => {
 	return sorted[lower].responseTime * (1 - weight) + sorted[upper].responseTime * weight;
 };
 
+const calculatePercentileUptimeDetails = (arr, percentile) => {
+	const sorted = arr.slice().sort((a, b) => a.avgResponseTime - b.avgResponseTime);
+	const index = (percentile / 100) * (sorted.length - 1);
+	const lower = Math.floor(index);
+	const upper = lower + 1;
+	const weight = index % 1;
+	if (upper >= sorted.length) return sorted[lower].avgResponseTime;
+	return (
+		sorted[lower].avgResponseTime * (1 - weight) + sorted[upper].avgResponseTime * weight
+	);
+};
+
 const NormalizeData = (checks, rangeMin, rangeMax) => {
 	if (checks.length > 1) {
 		// Get the 5th and 95th percentile
 		const min = calculatePercentile(checks, 0);
 		const max = calculatePercentile(checks, 95);
-
 		const normalizedChecks = checks.map((check) => {
 			const originalResponseTime = check.responseTime;
 			// Normalize the response time between 1 and 100
@@ -40,5 +51,42 @@ const NormalizeData = (checks, rangeMin, rangeMax) => {
 		});
 	}
 };
+const NormalizeDataUptimeDetails = (checks, rangeMin, rangeMax) => {
+	if (checks.length > 1) {
+		// Get the 5th and 95th percentile
+		const min = calculatePercentileUptimeDetails(checks, 0);
+		const max = calculatePercentileUptimeDetails(checks, 95);
 
-export { calculatePercentile, NormalizeData };
+		const normalizedChecks = checks.map((check) => {
+			const originalResponseTime = check.avgResponseTime;
+			// Normalize the response time between 1 and 100
+			let normalizedResponseTime =
+				rangeMin + ((check.avgResponseTime - min) * (rangeMax - rangeMin)) / (max - min);
+
+			// Put a floor on the response times so we don't have extreme outliers
+			// Better visuals
+			normalizedResponseTime = Math.max(
+				rangeMin,
+				Math.min(rangeMax, normalizedResponseTime)
+			);
+			return {
+				...check,
+				avgResponseTime: normalizedResponseTime,
+				originalAvgResponseTime: originalResponseTime,
+			};
+		});
+
+		return normalizedChecks;
+	} else {
+		return checks.map((check) => {
+			return { ...check._doc, originalResponseTime: check.responseTime };
+		});
+	}
+};
+
+export {
+	calculatePercentile,
+	NormalizeData,
+	calculatePercentileUptimeDetails,
+	NormalizeDataUptimeDetails,
+};