Merge pull request #1482 from blockscout/tom2drum/issue-1405

Gas tooltip: periodical updates of data

lib/api/useApiFetch.tsx

 import { useQueryClient } from '@tanstack/react-query';
+import _omit from 'lodash/omit';
 import _pickBy from 'lodash/pickBy';
 import React from 'react';
 
@@ -19,7 +20,7 @@ import type { ApiResource, ResourceName, ResourcePathParams } from './resources'
 export interface Params<R extends ResourceName> {
   pathParams?: ResourcePathParams<R>;
   queryParams?: Record<string, string | Array<string> | number | undefined>;
-  fetchParams?: Pick<FetchParams, 'body' | 'method' | 'signal'>;
+  fetchParams?: Pick<FetchParams, 'body' | 'method' | 'signal' | 'headers'>;
 }
 
 export default function useApiFetch() {
@@ -40,6 +41,7 @@ export default function useApiFetch() {
       'x-endpoint': resource.endpoint && isNeedProxy() ? resource.endpoint : undefined,
       Authorization: resource.endpoint && resource.needAuth ? apiToken : undefined,
       'x-csrf-token': withBody && csrfToken ? csrfToken : undefined,
+      ...fetchParams?.headers,
     }, Boolean) as HeadersInit;
 
     return fetch<SuccessType, ErrorType>(
@@ -51,7 +53,7 @@ export default function useApiFetch() {
         // change condition here if something is changed
         credentials: config.features.account.isEnabled ? 'include' : 'same-origin',
         headers,
-        ...fetchParams,
+        ..._omit(fetchParams, 'headers'),
       },
       {
         resource: resource.path,

mocks/stats/index.ts

@@ -3,11 +3,26 @@ import type { HomeStats } from 'types/api/stats';
 export const base: HomeStats = {
   average_block_time: 6212.0,
   coin_price: '0.00199678',
+  coin_price_change_percentage: -7.42,
   gas_prices: {
-    average: 48.0,
-    fast: 67.5,
-    slow: 48.0,
+    average: {
+      fiat_price: '1.01',
+      price: 20.41,
+      time: 12283,
     },
+    fast: {
+      fiat_price: '1.26',
+      price: 25.47,
+      time: 9321,
+    },
+    slow: {
+      fiat_price: '0.97',
+      price: 19.55,
+      time: 24543,
+    },
+  },
+  gas_price_updated_at: '2022-11-11T11:09:49.051171Z',
+  gas_prices_update_in: 300000,
   gas_used_today: '4108680603',
   market_cap: '330809.96443288102524',
   network_utilization_percentage: 1.55372064,

nextjs/utils/fetch.ts

 import type { IncomingMessage } from 'http';
+import _pick from 'lodash/pick';
 import type { NextApiRequest } from 'next';
 import type { NextApiRequestCookies } from 'next/dist/server/api-utils';
 import type { RequestInit, Response } from 'node-fetch';
@@ -14,16 +15,18 @@ export default function fetchFactory(
   // first arg can be only a string
   // FIXME migrate to RequestInfo later if needed
   return function fetch(url: string, init?: RequestInit): Promise<Response> {
-    const csrfToken = _req.headers['x-csrf-token'];
-    const authToken = _req.headers['Authorization'];
     const apiToken = _req.cookies[cookies.NAMES.API_TOKEN];
 
     const headers = {
       accept: _req.headers['accept'] || 'application/json',
       'content-type': _req.headers['content-type'] || 'application/json',
       cookie: apiToken ? `${ cookies.NAMES.API_TOKEN }=${ apiToken }` : '',
-      ...(csrfToken ? { 'x-csrf-token': String(csrfToken) } : {}),
-      ...(authToken ? { Authorization: String(authToken) } : {}),
+      ..._pick(_req.headers, [
+        'x-csrf-token',
+        'Authorization',
+        // feature flags
+        'updated-gas-oracle',
+      ]) as Record<string, string | undefined>,
     };
 
     httpLogger.logger.info({

stubs/stats.ts

@@ -3,11 +3,26 @@ import type { Counter, HomeStats, StatsChartsSection } from 'types/api/stats';
 export const HOMEPAGE_STATS: HomeStats = {
   average_block_time: 14346,
   coin_price: '1807.68',
+  coin_price_change_percentage: 42,
   gas_prices: {
-    average: 0.1,
-    fast: 0.11,
-    slow: 0.1,
+    average: {
+      fiat_price: '1.01',
+      price: 20.41,
+      time: 12283,
     },
+    fast: {
+      fiat_price: '1.26',
+      price: 25.47,
+      time: 9321,
+    },
+    slow: {
+      fiat_price: '0.97',
+      price: 19.55,
+      time: 24543,
+    },
+  },
+  gas_price_updated_at: '2022-11-11T11:09:49.051171Z',
+  gas_prices_update_in: 300000,
   gas_used_today: '0',
   market_cap: '0',
   network_utilization_percentage: 22.56,

types/api/stats.ts

@@ -4,10 +4,13 @@ export type HomeStats = {
   total_transactions: string;
   average_block_time: number;
   coin_price: string | null;
+  coin_price_change_percentage: number | null; // e.g -6.22
   total_gas_used: string;
   transactions_today: string;
   gas_used_today: string;
   gas_prices: GasPrices | null;
+  gas_price_updated_at: string | null;
+  gas_prices_update_in: number;
   static_gas_price: string | null;
   market_cap: string;
   network_utilization_percentage: number;
@@ -16,9 +19,15 @@ export type HomeStats = {
 }
 
 export type GasPrices = {
-  average: number | null;
-  fast: number | null;
-  slow: number | null;
+  average: GasPriceInfo | null;
+  fast: GasPriceInfo | null;
+  slow: GasPriceInfo | null;
+}
+
+export interface GasPriceInfo {
+  fiat_price: string | null;
+  price: number | null;
+  time: number | null;
 }
 
 export type Counters = {

ui/blocks/BlocksTabSlot.tsx

@@ -14,6 +14,11 @@ interface Props {
 
 const BlocksTabSlot = ({ pagination }: Props) => {
   const statsQuery = useApiQuery('homepage_stats', {
+    fetchParams: {
+      headers: {
+        'updated-gas-oracle': 'true',
+      },
+    },
     queryOptions: {
       placeholderData: HOMEPAGE_STATS,
     },

ui/home/LatestBlocks.tsx

@@ -37,7 +37,13 @@ const LatestBlocks = () => {
 
   const queryClient = useQueryClient();
   const statsQueryResult = useApiQuery('homepage_stats', {
+    fetchParams: {
+      headers: {
+        'updated-gas-oracle': 'true',
+      },
+    },
     queryOptions: {
+      refetchOnMount: false,
       placeholderData: HOMEPAGE_STATS,
     },
   });

ui/home/Stats.tsx

@@ -16,8 +16,14 @@ const hasGasTracker = config.UI.homepage.showGasTracker;
 const hasAvgBlockTime = config.UI.homepage.showAvgBlockTime;
 
 const Stats = () => {
-  const { data, isPlaceholderData, isError } = useApiQuery('homepage_stats', {
+  const { data, isPlaceholderData, isError, dataUpdatedAt } = useApiQuery('homepage_stats', {
+    fetchParams: {
+      headers: {
+        'updated-gas-oracle': 'true',
+      },
+    },
     queryOptions: {
+      refetchOnMount: false,
       placeholderData: HOMEPAGE_STATS,
     },
   });
@@ -45,7 +51,19 @@ const Stats = () => {
     !data.gas_prices && itemsCount--;
     data.rootstock_locked_btc && itemsCount++;
     const isOdd = Boolean(itemsCount % 2);
-    const gasLabel = hasGasTracker && data.gas_prices ? <GasInfoTooltipContent gasPrices={ data.gas_prices }/> : null;
+    const gasLabel = hasGasTracker && data.gas_prices ? <GasInfoTooltipContent data={ data } dataUpdatedAt={ dataUpdatedAt }/> : null;
+
+    const gasPriceText = (() => {
+      if (data.gas_prices?.average?.fiat_price) {
+        return `$${ data.gas_prices.average.fiat_price }`;
+      }
+
+      if (data.gas_prices?.average?.price) {
+        return `${ data.gas_prices.average.price.toLocaleString() } Gwei`;
+      }
+
+      return 'N/A';
+    })();
 
     content = (
       <>
@@ -92,7 +110,7 @@ const Stats = () => {
           <StatsItem
             icon="gas"
             title="Gas tracker"
-            value={ data.gas_prices.average !== null ? `${ Number(data.gas_prices.average).toLocaleString() } Gwei` : 'N/A' }
+            value={ gasPriceText }
             _last={ isOdd ? lastItemTouchStyle : undefined }
             tooltipLabel={ gasLabel }
             isLoading={ isPlaceholderData }

ui/home/indicators/ChainIndicators.tsx

@@ -3,6 +3,7 @@ import React from 'react';
 
 import config from 'configs/app';
 import useApiQuery from 'lib/api/useApiQuery';
+import { HOMEPAGE_STATS } from 'stubs/stats';
 import Hint from 'ui/shared/Hint';
 
 import ChainIndicatorChartContainer from './ChainIndicatorChartContainer';
@@ -29,7 +30,17 @@ const ChainIndicators = () => {
   const indicator = indicators.find(({ id }) => id === selectedIndicator);
 
   const queryResult = useFetchChartData(indicator);
-  const statsQueryResult = useApiQuery('homepage_stats');
+  const statsQueryResult = useApiQuery('homepage_stats', {
+    fetchParams: {
+      headers: {
+        'updated-gas-oracle': 'true',
+      },
+    },
+    queryOptions: {
+      refetchOnMount: false,
+      placeholderData: HOMEPAGE_STATS,
+    },
+  });
 
   const bgColorDesktop = useColorModeValue('white', 'gray.900');
   const bgColorMobile = useColorModeValue('white', 'black');

ui/shared/GasInfoTooltipContent/GasInfoRow.tsx

+import { GridItem, chakra } from '@chakra-ui/react';
+import React from 'react';
+
+import type { GasPriceInfo } from 'types/api/stats';
+
+import { asymp, space } from 'lib/html-entities';
+
+interface Props {
+  name: string;
+  info: GasPriceInfo | null;
+}
+
+const GasInfoRow = ({ name, info }: Props) => {
+  const content = (() => {
+    if (!info || info.price === null) {
+      return 'N/A';
+    }
+
+    return (
+      <>
+        <span>{ info.fiat_price ? `$${ info.fiat_price }` : `${ info.price } Gwei` }</span>
+        { info.time && (
+          <chakra.span color="text_secondary">
+            { space }per tx { asymp } { (info.time / 1000).toLocaleString(undefined, { maximumFractionDigits: 1 }) }s
+          </chakra.span>
+        ) }
+      </>
+    );
+  })();
+
+  return (
+    <>
+      <GridItem color="blue.100">{ name }</GridItem>
+      <GridItem color="text" textAlign="right">{ content }</GridItem>
+    </>
+  );
+};
+
+export default React.memo(GasInfoRow);

ui/shared/GasInfoTooltipContent/GasInfoTooltipContent.tsx

-import { Grid, GridItem, useColorModeValue } from '@chakra-ui/react';
+import { DarkMode, Grid, GridItem } from '@chakra-ui/react';
 import React from 'react';
 
-import type { GasPrices } from 'types/api/stats';
+import type { HomeStats } from 'types/api/stats';
 
-const GasInfoTooltipContent = ({ gasPrices }: {gasPrices: GasPrices}) => {
-  const nameStyleProps = {
-    color: useColorModeValue('blue.100', 'blue.600'),
-  };
+import dayjs from 'lib/date/dayjs';
+
+import GasInfoRow from './GasInfoRow';
+import GasInfoUpdateTimer from './GasInfoUpdateTimer';
+
+interface Props {
+  data: HomeStats;
+  dataUpdatedAt: number;
+}
+
+const GasInfoTooltipContent = ({ data, dataUpdatedAt }: Props) => {
+
+  if (!data.gas_prices) {
+    return null;
+  }
 
   return (
-    <Grid templateColumns="repeat(2, max-content)" rowGap={ 2 } columnGap={ 4 } padding={ 4 } fontSize="xs">
-      <GridItem { ...nameStyleProps }>Slow</GridItem>
-      <GridItem>{ gasPrices.slow !== null ? `${ gasPrices.slow } Gwei` : 'N/A' }</GridItem>
-      <GridItem { ...nameStyleProps }>Average</GridItem>
-      <GridItem>{ gasPrices.average !== null ? `${ gasPrices.average } Gwei` : 'N/A' }</GridItem>
-      <GridItem { ...nameStyleProps }>Fast</GridItem>
-      <GridItem>{ gasPrices.fast !== null ? `${ gasPrices.fast } Gwei` : 'N/A' }</GridItem>
+    <DarkMode>
+      <Grid templateColumns="repeat(2, max-content)" rowGap={ 2 } columnGap={ 4 } padding={ 4 } fontSize="xs" lineHeight={ 4 }>
+        { data.gas_price_updated_at && (
+          <>
+            <GridItem color="text_secondary">Last update</GridItem>
+            <GridItem color="text_secondary" display="flex" justifyContent="flex-end" columnGap={ 2 }>
+              { dayjs(data.gas_price_updated_at).format('MMM DD, HH:mm:ss') }
+              { data.gas_prices_update_in !== 0 &&
+              <GasInfoUpdateTimer key={ dataUpdatedAt } startTime={ dataUpdatedAt } duration={ data.gas_prices_update_in }/> }
+            </GridItem>
+          </>
+        ) }
+        <GasInfoRow name="Slow" info={ data.gas_prices.slow }/>
+        <GasInfoRow name="Normal" info={ data.gas_prices.average }/>
+        <GasInfoRow name="Fast" info={ data.gas_prices.fast }/>
       </Grid>
+    </DarkMode>
   );
 };
 

ui/shared/GasInfoTooltipContent/GasInfoUpdateTimer.tsx

+import { CircularProgress } from '@chakra-ui/react';
+import React from 'react';
+
+import dayjs from 'lib/date/dayjs';
+
+interface Props {
+  startTime: number;
+  duration: number;
+}
+
+const getValue = (startDate: dayjs.Dayjs, duration: number) => {
+  const now = dayjs();
+  const diff = now.diff(startDate, 'ms');
+  const value = diff / duration * 100;
+
+  if (value >= 99) {
+    return 99;
+  }
+
+  return value;
+};
+
+const GasInfoUpdateTimer = ({ startTime, duration }: Props) => {
+  const [ value, setValue ] = React.useState(getValue(dayjs(startTime), duration));
+
+  React.useEffect(() => {
+    const startDate = dayjs(startTime);
+
+    const intervalId = window.setInterval(() => {
+      const nextValue = getValue(startDate, duration);
+      setValue(nextValue);
+      if (nextValue === 99) {
+        window.clearInterval(intervalId);
+      }
+    }, 100);
+
+    return () => {
+      window.clearInterval(intervalId);
+    };
+  }, [ startTime, duration ]);
+
+  return <CircularProgress value={ value } trackColor="whiteAlpha.100" size={ 4 }/>;
+};
+
+export default React.memo(GasInfoUpdateTimer);

ui/snippets/topBar/TopBar.pw.tsx

@@ -19,7 +19,7 @@ test('default view +@dark-mode +@mobile', async({ mount, page }) => {
     </TestApp>,
   );
 
-  await component.getByText(/gwei/i).hover();
+  await component.getByText(/\$1\.01/).hover();
   await expect(page).toHaveScreenshot({ clip: { x: 0, y: 0, width: 1500, height: 220 } });
 
   await component.getByLabel('color mode switch').click();

ui/snippets/topBar/TopBarStats.tsx

-import { Flex, LightMode, Link, Skeleton, Tooltip, chakra, useDisclosure } from '@chakra-ui/react';
+import { Flex, Link, Skeleton, Tooltip, chakra, useDisclosure } from '@chakra-ui/react';
 import React from 'react';
 
 import config from 'configs/app';
 import useApiQuery from 'lib/api/useApiQuery';
+import dayjs from 'lib/date/dayjs';
 import { HOMEPAGE_STATS } from 'stubs/stats';
 import GasInfoTooltipContent from 'ui/shared/GasInfoTooltipContent/GasInfoTooltipContent';
 import TextSeparator from 'ui/shared/TextSeparator';
@@ -16,13 +17,39 @@ const TopBarStats = () => {
     onToggle();
   }, [ onToggle ]);
 
-  const { data, isPlaceholderData, isError } = useApiQuery('homepage_stats', {
+  const { data, isPlaceholderData, isError, refetch, dataUpdatedAt } = useApiQuery('homepage_stats', {
+    fetchParams: {
+      headers: {
+        'updated-gas-oracle': 'true',
+      },
+    },
     queryOptions: {
       placeholderData: HOMEPAGE_STATS,
       refetchOnMount: false,
     },
   });
 
+  React.useEffect(() => {
+    if (isPlaceholderData || !data?.gas_price_updated_at) {
+      return;
+    }
+
+    const endDate = dayjs(dataUpdatedAt).add(data.gas_prices_update_in, 'ms');
+    const timeout = endDate.diff(dayjs(), 'ms');
+
+    if (timeout <= 0) {
+      return;
+    }
+
+    const timeoutId = window.setTimeout(() => {
+      refetch();
+    }, timeout);
+
+    return () => {
+      window.clearTimeout(timeoutId);
+    };
+  }, [ isPlaceholderData, data?.gas_price_updated_at, dataUpdatedAt, data?.gas_prices_update_in, refetch ]);
+
   if (isError) {
     return <div/>;
   }
@@ -34,18 +61,26 @@ const TopBarStats = () => {
       fontWeight={ 500 }
     >
       { data?.coin_price && (
+        <Flex columnGap={ 1 }>
           <Skeleton isLoaded={ !isPlaceholderData }>
             <chakra.span color="text_secondary">{ config.chain.governanceToken.symbol || config.chain.currency.symbol } </chakra.span>
             <span>${ Number(data.coin_price).toLocaleString(undefined, { minimumFractionDigits: 2, maximumFractionDigits: 6 }) }</span>
           </Skeleton>
+          { data.coin_price_change_percentage && (
+            <Skeleton isLoaded={ !isPlaceholderData }>
+              <chakra.span color={ Number(data.coin_price_change_percentage) >= 0 ? 'green.500' : 'red.500' }>
+                { Number(data.coin_price_change_percentage).toFixed(2) }%
+              </chakra.span>
+            </Skeleton>
+          ) }
+        </Flex>
       ) }
       { data?.coin_price && config.UI.homepage.showGasTracker && <TextSeparator color="divider"/> }
       { data?.gas_prices && data.gas_prices.average !== null && config.UI.homepage.showGasTracker && (
         <Skeleton isLoaded={ !isPlaceholderData }>
           <chakra.span color="text_secondary">Gas </chakra.span>
-          <LightMode>
           <Tooltip
-              label={ <GasInfoTooltipContent gasPrices={ data.gas_prices }/> }
+            label={ <GasInfoTooltipContent data={ data } dataUpdatedAt={ dataUpdatedAt }/> }
             hasArrow={ false }
             borderRadius="md"
             offset={ [ 0, 16 ] }
@@ -59,10 +94,9 @@ const TopBarStats = () => {
               onMouseEnter={ onOpen }
               onMouseLeave={ onClose }
             >
-                { data.gas_prices.average } Gwei
+              { data.gas_prices.average.fiat_price ? `$${ data.gas_prices.average.fiat_price }` : `${ data.gas_prices.average.price } Gwei` }
             </Link>
           </Tooltip>
-          </LightMode>
         </Skeleton>
       ) }
     </Flex>

ui/stats/ChartsWidgetsList.tsx

+import type { TooltipProps } from '@chakra-ui/react';
 import { Box, Grid, Heading, List, ListItem, Skeleton } from '@chakra-ui/react';
 import React, { useCallback, useState } from 'react';
 
 import type { StatsChartsSection } from 'types/api/stats';
 import type { StatsIntervalIds } from 'types/client/stats';
 
+import useApiQuery from 'lib/api/useApiQuery';
 import { apos } from 'lib/html-entities';
 import EmptySearchResult from 'ui/shared/EmptySearchResult';
+import GasInfoTooltipContent from 'ui/shared/GasInfoTooltipContent/GasInfoTooltipContent';
+import Hint from 'ui/shared/Hint';
 
 import ChartsLoadingErrorAlert from './ChartsLoadingErrorAlert';
 import ChartWidgetContainer from './ChartWidgetContainer';
 
+const GAS_TOOLTIP_PROPS: Partial<TooltipProps> = {
+  borderRadius: 'md',
+  hasArrow: false,
+  padding: 0,
+};
+
 type Props = {
   filterQuery: string;
   isError: boolean;
@@ -23,6 +33,17 @@ const ChartsWidgetsList = ({ filterQuery, isError, isPlaceholderData, charts, in
   const isAnyChartDisplayed = charts?.some((section) => section.charts.length > 0);
   const isEmptyChartList = Boolean(filterQuery) && !isAnyChartDisplayed;
 
+  const homeStatsQuery = useApiQuery('homepage_stats', {
+    fetchParams: {
+      headers: {
+        'updated-gas-oracle': 'true',
+      },
+    },
+    queryOptions: {
+      refetchOnMount: false,
+    },
+  });
+
   const handleChartLoadingError = useCallback(
     () => setIsSomeChartLoadingError(true),
     [ setIsSomeChartLoadingError ]);
@@ -51,10 +72,16 @@ const ChartsWidgetsList = ({ filterQuery, isError, isPlaceholderData, charts, in
                 marginBottom: 0,
               }}
             >
-              <Skeleton isLoaded={ !isPlaceholderData } mb={ 4 } display="inline-block">
+              <Skeleton isLoaded={ !isPlaceholderData } mb={ 4 } display="inline-flex" alignItems="center" columnGap={ 2 }>
                 <Heading size="md" >
                   { section.title }
                 </Heading>
+                { section.id === 'gas' && homeStatsQuery.data && homeStatsQuery.data.gas_prices && (
+                  <Hint
+                    label={ <GasInfoTooltipContent data={ homeStatsQuery.data } dataUpdatedAt={ homeStatsQuery.dataUpdatedAt }/> }
+                    tooltipProps={ GAS_TOOLTIP_PROPS }
+                  />
+                ) }
               </Skeleton>
 
               <Grid