From 4a2eb1d3e463ce2c00a51de212bc56a2a1ad475b Mon Sep 17 00:00:00 2001
From: Vishwam Talnikar <131583570+visz11@users.noreply.github.com>
Date: Mon, 10 Nov 2025 11:56:41 +0530
Subject: [PATCH] Add CustomLegend component for interactive legend

---
 index.tsx | 161 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 161 insertions(+)
 create mode 100644 index.tsx

diff --git a/index.tsx b/index.tsx
new file mode 100644
index 0000000..efbaffc
--- /dev/null
+++ b/index.tsx
@@ -0,0 +1,161 @@
+import { Box, Flex, Text, Tooltip } from '@chakra-ui/react';
+import { useEffect, useState } from 'react';
+
+export default function CustomLegend({
+  barProps,
+  setBarProps,
+  keys,
+  w,
+  ...props
+}: any) {
+  const showReset = !keys.every((item: any) => barProps[item.key]);
+  const [hasShownTooltip, setHasShownTooltip] = useState(false);
+  const [showTooltip, setShowTooltip] = useState(false);
+
+  const resetSelected = () => {
+    setBarProps(
+      keys?.reduce(
+        (a: any, { key }: any) => {
+          a[key] = true;
+          return a;
+        },
+        {
+          hover: null,
+        }
+      )
+    );
+  };
+
+  return (
+    <Box flexDirection={'column'} padding={'0 20px'} w={w ? w : 220}>
+      <Tooltip
+        label={'Double-click on legend to isolate a single metric.'}
+        isOpen={showTooltip}
+        placement="top"
+        w={170}
+        fontSize={'xs'}
+      >
+        <Text
+          fontWeight={600}
+          fontSize={'xs'}
+          textDecor={'underline'}
+          w={'fit-content'}
+          mb={1}
+          onClick={() => {
+            if (!showReset) {
+              return;
+            }
+            resetSelected();
+          }}
+          visibility={showReset ? 'visible' : 'hidden'}
+          cursor={'pointer'}
+        >
+          Reset
+        </Text>
+      </Tooltip>
+      {keys?.map((entry: any) => {
+        const isLine = ['line_chart', 'dashed_line_chart'].includes(
+          entry?.chartType
+        );
+        return (
+          <Flex
+            key={entry?.key}
+            align={'center'}
+            w={'fit-content'}
+            cursor={'pointer'}
+            onDoubleClick={() => {
+              setBarProps(
+                keys?.reduce(
+                  (a: any, { key }: any) => {
+                    a[key] = entry?.key === key ? true : false;
+                    return a;
+                  },
+                  {
+                    hover: null,
+                  }
+                )
+              );
+            }}
+            onClick={() => {
+              if (!hasShownTooltip) {
+                setHasShownTooltip(true);
+                setShowTooltip(true);
+                setTimeout(() => {
+                  setShowTooltip(false);
+                }, 1500);
+              }
+
+              setBarProps((barProps: any) => {
+                return {
+                  ...barProps,
+                  [entry?.key]: !barProps[entry?.key],
+                  hover: null,
+                };
+              });
+            }}
+            onMouseEnter={() => {
+              if (!barProps[entry?.key]) {
+                return;
+              }
+              setBarProps((barProps: any) => {
+                return { ...barProps, hover: entry.key };
+              });
+            }}
+            onMouseLeave={() => {
+              setBarProps((barProps: any) => {
+                return { ...barProps, hover: null };
+              });
+            }}
+          >
+            {isLine ? (
+              <svg width="20" height="3" style={{ marginRight: '5px' }}>
+                <line
+                  x1="0"
+                  y1="1.5"
+                  x2="20"
+                  y2="1.5"
+                  stroke={barProps[entry?.key] ? entry?.color : 'grey'}
+                  strokeWidth="3"
+                  strokeDasharray={
+                    entry?.chartType === 'dashed_line_chart' ? '2 2' : 'none'
+                  }
+                />
+              </svg>
+            ) : (
+              <svg width="20" height="20" style={{ marginRight: '5px' }}>
+                <circle
+                  cx="10"
+                  cy="10"
+                  r="5"
+                  fill={barProps[entry?.key] ? entry?.color : 'grey'}
+                  fillOpacity={
+                    entry?.chartType === 'dashed_bar_chart' ? 0.2 : 1
+                  }
+                  stroke={
+                    entry?.chartType === 'dashed_bar_chart'
+                      ? entry?.color
+                      : 'none'
+                  }
+                  strokeDasharray={
+                    entry?.chartType === 'dashed_bar_chart' ? '2 2' : 'none'
+                  }
+                />
+              </svg>
+            )}
+            <Text
+              _hover={
+                barProps[entry?.key]
+                  ? { color: entry?.color, fontWeight: 600 }
+                  : { color: 'grey' }
+              }
+              color={barProps[entry?.key] ? entry?.color : 'grey'}
+              decoration={barProps[entry?.key] ? 'auto' : 'line-through'}
+            >
+              {entry?.name}
+            </Text>
+          </Flex>
+        );
+      })}
+    </Box>
+  );
+}