Enhance ModelHistoryDisplay with History Mode Toggle and Chart Data Calculation

- Added a switch to toggle between absolute and relative value modes for chart data in ModelHistoryDisplay, improving data analysis flexibility.
- Refactored chart data calculation to support relative values based on the selected history mode, enhancing user experience and data interpretation.
- Updated component layout for better alignment and usability of the new features.

src/components/Dashboard/common/ModelHistoryDisplay.jsx

@@ -1,5 +1,14 @@
 import { useEffect, useState, useContext, useMemo } from 'react'
-import { Card, Segmented, Flex, Popover, DatePicker, Button, Space } from 'antd'
+import {
+  Card,
+  Segmented,
+  Flex,
+  Popover,
+  DatePicker,
+  Button,
+  Space,
+  Switch
+} from 'antd'
 import {
   ResponsiveContainer,
   BarChart,
@@ -37,6 +46,7 @@ const ModelHistoryDisplay = ({
   const [loading, setLoading] = useState(true)
   const [error, setError] = useState(null)
   const [timeRange, setTimeRange] = useState('4hrs')
+  const [historyMode, setHistoryMode] = useState('absolute')
   const [startCustomDate, setStartCustomDate] = useState(null)
   const [endCustomDate, setEndCustomDate] = useState(null)
   const { isDarkMode, getColors } = useThemeContext()
@@ -287,7 +297,7 @@ const ModelHistoryDisplay = ({
     return colors.default
   })
 
-  const chartRows = Array.from(
+  const absoluteRows = Array.from(
     chartData
       .reduce((acc, item) => {
         const existing = acc.get(item.date) || {
@@ -301,6 +311,22 @@ const ModelHistoryDisplay = ({
       .values()
   ).sort((a, b) => new Date(a.date) - new Date(b.date))
 
+  const chartRows =
+    historyMode === 'relative' && absoluteRows.length > 0
+      ? absoluteRows.map((row) => {
+          const next = {
+            date: row.date,
+            dateFormatted: row.dateFormatted
+          }
+          for (const statDef of modelStats) {
+            const category = statDef.label || statDef.name
+            next[category] =
+              (row[category] || 0) - (absoluteRows[0][category] || 0)
+          }
+          return next
+        })
+      : absoluteRows
+
   const customTimeRangeContent = (
     <Space.Compact>
       <DatePicker.RangePicker
@@ -398,9 +424,9 @@ const ModelHistoryDisplay = ({
       styles={{ body: { padding: '12px', ...styles } }}
     >
       <Flex gap='small' vertical>
-        {!startDate && !endDate && (
-          <Flex justify='space-between'>
-            <Flex align='center' gap='5px'>
+        <Flex justify='space-between' align='center'>
+          <Flex align='center' gap='small'>
+            {!startDate && !endDate && (
               <Popover
                 content={customTimeRangeContent}
                 trigger='hover'
@@ -416,9 +442,21 @@ const ModelHistoryDisplay = ({
                   disabled={loading}
                 />
               </Popover>
-            </Flex>
+            )}
+            <Switch
+              size='small'
+              checked={historyMode === 'absolute'}
+              checkedChildren='Abs'
+              unCheckedChildren='Rel'
+              title='Absolute or relative values'
+              onChange={(checked) =>
+                setHistoryMode(checked ? 'absolute' : 'relative')
+              }
+            />
+          </Flex>
 
-            <Flex gap='middle'>
+          {!startDate && !endDate && (
+            <Flex gap='middle' align='center'>
               {loading == true && <LoadingOutlined />}
               <Segmented
                 size='small'
@@ -434,8 +472,8 @@ const ModelHistoryDisplay = ({
                 disabled={loading}
               />
             </Flex>
-          </Flex>
-        )}
+          )}
+        </Flex>
         {chartRows.length > 0 && (
           <div style={{ width: '100%', height: `${height}px` }}>
             <ResponsiveContainer width='100%' height='100%'>