From 7c3a05077c6126b7e3bf697ef018bcfdd2e96b7d Mon Sep 17 00:00:00 2001
From: Alex Holliday <ajhollid@gmail.com>
Date: Mon, 6 Oct 2025 10:56:29 -0700
Subject: [PATCH] tooltip

---
 .../v2/Monitors/HistogramResponseTime.tsx     | 50 +++++++++++--------
 .../Monitors/HistogramResponseTimeTooltip.tsx | 29 +++++++++++
 client/src/Types/Check.ts                     |  7 +++
 client/src/Utils/TimeUtils.ts                 | 25 ++++++++++
 4 files changed, 90 insertions(+), 21 deletions(-)
 create mode 100644 client/src/Components/v2/Monitors/HistogramResponseTimeTooltip.tsx
 create mode 100644 client/src/Utils/TimeUtils.ts

diff --git a/client/src/Components/v2/Monitors/HistogramResponseTime.tsx b/client/src/Components/v2/Monitors/HistogramResponseTime.tsx
index 43e9a9677..d19ddbf53 100644
--- a/client/src/Components/v2/Monitors/HistogramResponseTime.tsx
+++ b/client/src/Components/v2/Monitors/HistogramResponseTime.tsx
@@ -2,6 +2,7 @@ import Stack from "@mui/material/Stack";
 import Box from "@mui/material/Box";
 import { useTheme } from "@mui/material/styles";
 import type { Check } from "@/Types/Check";
+import { HistogramResponseTimeTooltip } from "@/Components/v2/Monitors/HistogramResponseTimeTooltip";
 
 export const HistogramResponseTime = ({ checks }: { checks: Check[] }) => {
 	let data = Array<any>();
@@ -39,8 +40,11 @@ export const HistogramResponseTime = ({ checks }: { checks: Check[] }) => {
 			{data.map((check, index) => {
 				const safeResponse = Math.max(check.responseTime, 1);
 				const logValue = Math.log10(safeResponse);
+				const minHeight = 10;
 				const barHeight =
-					logMax === logMin ? 100 : ((logValue - logMin) / (logMax - logMin)) * 100;
+					logMax === logMin
+						? 100
+						: Math.max(minHeight, ((logValue - logMin) / (logMax - logMin)) * 100);
 
 				if (check === "placeholder") {
 					return (
@@ -57,32 +61,36 @@ export const HistogramResponseTime = ({ checks }: { checks: Check[] }) => {
 					);
 				} else {
 					return (
-						<Box
+						<HistogramResponseTimeTooltip
 							key={`${check}-${index}`}
-							position="relative"
-							width="9px"
-							height="100%"
-							bgcolor={theme.palette.primary.lowContrast}
-							sx={{
-								borderRadius: theme.spacing(1.5),
-							}}
+							check={check}
 						>
 							<Box
-								position="absolute"
-								bottom={0}
-								width="100%"
-								height={`${barHeight}%`}
-								bgcolor={
-									check.status
-										? theme.palette.success.lowContrast
-										: theme.palette.error.lowContrast
-								}
+								position="relative"
+								width="9px"
+								height="100%"
+								bgcolor={theme.palette.primary.lowContrast}
 								sx={{
 									borderRadius: theme.spacing(1.5),
-									transition: "height 600ms cubic-bezier(0.4, 0, 0.2, 1)",
 								}}
-							/>
-						</Box>
+							>
+								<Box
+									position="absolute"
+									bottom={0}
+									width="100%"
+									height={`${barHeight}%`}
+									bgcolor={
+										check.status
+											? theme.palette.success.lowContrast
+											: theme.palette.error.lowContrast
+									}
+									sx={{
+										borderRadius: theme.spacing(1.5),
+										transition: "height 600ms cubic-bezier(0.4, 0, 0.2, 1)",
+									}}
+								/>
+							</Box>
+						</HistogramResponseTimeTooltip>
 					);
 				}
 			})}
diff --git a/client/src/Components/v2/Monitors/HistogramResponseTimeTooltip.tsx b/client/src/Components/v2/Monitors/HistogramResponseTimeTooltip.tsx
new file mode 100644
index 000000000..d704cf5d4
--- /dev/null
+++ b/client/src/Components/v2/Monitors/HistogramResponseTimeTooltip.tsx
@@ -0,0 +1,29 @@
+import Stack from "@mui/material/Stack";
+import Tooltip from "@mui/material/Tooltip";
+import Typography from "@mui/material/Typography";
+import { formatDateWithTz } from "@/Utils/TimeUtils";
+import { useSelector } from "react-redux";
+import type { LatestCheck } from "@/Types/Check";
+
+export const HistogramResponseTimeTooltip: React.FC<{
+	children: React.ReactElement;
+	check: LatestCheck;
+}> = ({ children, check }) => {
+	const uiTimezone = useSelector((state: any) => state.ui.timezone);
+	return (
+		<Tooltip
+			title={
+				<Stack>
+					<Typography>
+						{formatDateWithTz(check?.checkedAt, "ddd, MMMM D, YYYY, HH:mm A", uiTimezone)}
+					</Typography>
+					{check?.responseTime && (
+						<Typography>Response Time: {check.responseTime} ms</Typography>
+					)}
+				</Stack>
+			}
+		>
+			{children}
+		</Tooltip>
+	);
+};
diff --git a/client/src/Types/Check.ts b/client/src/Types/Check.ts
index 0590069cc..c3c3712f0 100644
--- a/client/src/Types/Check.ts
+++ b/client/src/Types/Check.ts
@@ -10,3 +10,10 @@ export interface GroupedCheck {
 	avgResponseTime: number;
 	count: number;
 }
+
+export interface LatestCheck {
+	status: string;
+	responseTime: number;
+	checkedAt: string;
+	_id: string;
+}
diff --git a/client/src/Utils/TimeUtils.ts b/client/src/Utils/TimeUtils.ts
new file mode 100644
index 000000000..5dc9b23c1
--- /dev/null
+++ b/client/src/Utils/TimeUtils.ts
@@ -0,0 +1,25 @@
+import dayjs from "dayjs";
+import duration from "dayjs/plugin/duration";
+import utc from "dayjs/plugin/utc";
+import timezone from "dayjs/plugin/timezone";
+import customParseFormat from "dayjs/plugin/customParseFormat";
+
+dayjs.extend(utc);
+dayjs.extend(timezone);
+dayjs.extend(customParseFormat);
+dayjs.extend(duration);
+
+export const MS_PER_SECOND = 1000;
+export const MS_PER_MINUTE = 60 * MS_PER_SECOND;
+export const MS_PER_HOUR = 60 * MS_PER_MINUTE;
+export const MS_PER_DAY = 24 * MS_PER_HOUR;
+export const MS_PER_WEEK = MS_PER_DAY * 7;
+
+export const formatDateWithTz = (timestamp: string, format: string, timezone: string) => {
+	if (!timestamp) {
+		return "Unknown time";
+	}
+
+	const formattedDate = dayjs(timestamp).tz(timezone).format(format);
+	return formattedDate;
+};