Merge pull request #1457 from blockscout/fe-1435

Transaction interpretations

configs/app/features/index.ts

@@ -17,6 +17,7 @@ export { default as sentry } from './sentry';
 export { default as sol2uml } from './sol2uml';
 export { default as stats } from './stats';
 export { default as suave } from './suave';
+export { default as txInterpretation } from './txInterpretation';
 export { default as web3Wallet } from './web3Wallet';
 export { default as verifiedTokens } from './verifiedTokens';
 export { default as zkEvmRollup } from './zkEvmRollup';

configs/app/features/txInterpretation.ts

+import type { Feature } from './types';
+
+import { getEnvValue } from '../utils';
+
+const title = 'Transaction interpretation';
+
+const provider = getEnvValue('NEXT_PUBLIC_TRANSACTION_INTERPRETATION_PROVIDER') || 'none';
+
+const config: Feature<{ provider: string }> = (() => {
+  if (provider !== 'none') {
+    return Object.freeze({
+      title,
+      provider,
+      isEnabled: true,
+    });
+  }
+
+  return Object.freeze({
+    title,
+    isEnabled: false,
+  });
+})();
+
+export default config;

configs/envs/.env.eth

@@ -42,6 +42,7 @@ NEXT_PUBLIC_STATS_API_HOST=https://stats-eth-main.k8s.blockscout.com
 NEXT_PUBLIC_VISUALIZE_API_HOST=https://visualizer.services.blockscout.com
 NEXT_PUBLIC_CONTRACT_INFO_API_HOST=https://contracts-info.services.blockscout.com
 NEXT_PUBLIC_ADMIN_SERVICE_API_HOST=https://admin-rs.services.blockscout.com
+NEXT_PUBLIC_TRANSACTION_INTERPRETATION_PROVIDER=blockscout
 
 #meta
 NEXT_PUBLIC_OG_IMAGE_URL=https://github.com/blockscout/frontend-configs/blob/main/configs/og-images/eth.jpg?raw=true

deploy/tools/envs-validator/schema.ts

@@ -438,6 +438,7 @@ const schema = yup
         return isNoneSchema.isValidSync(data) || isArrayOfWalletsSchema.isValidSync(data);
       }),
     NEXT_PUBLIC_WEB3_DISABLE_ADD_TOKEN_TO_WALLET: yup.boolean(),
+    NEXT_PUBLIC_TRANSACTION_INTERPRETATION_PROVIDER: yup.string().oneOf([ 'blockscout', 'none' ]),
     NEXT_PUBLIC_AD_TEXT_PROVIDER: yup.string<AdTextProviders>().oneOf(SUPPORTED_AD_TEXT_PROVIDERS),
     NEXT_PUBLIC_PROMOTE_BLOCKSCOUT_IN_TITLE: yup.boolean(),
     NEXT_PUBLIC_OG_DESCRIPTION: yup.string(),

docs/ENVS.md

@@ -44,6 +44,7 @@ Please be aware that all environment variables prefixed with `NEXT_PUBLIC_` will
   - [Solidity to UML diagrams](ENVS.md#solidity-to-uml-diagrams)
   - [Blockchain statistics](ENVS.md#blockchain-statistics)
   - [Web3 wallet integration](ENVS.md#web3-wallet-integration-add-token-or-network-to-the-wallet) (add token or network to the wallet)
+  - [Transaction interpretation](ENVS.md#transaction-interpretation)
   - [Verified tokens info](ENVS.md#verified-tokens-info)
   - [Bridged tokens](ENVS.md#bridged-tokens)
   - [Safe{Core} address tags](ENVS.md#safecore-address-tags)
@@ -473,6 +474,14 @@ This feature is **enabled by default** with the `['metamask']` value. To switch
 
  
 
+### Transaction interpretation
+
+| Variable | Type| Description | Compulsoriness  | Default value | Example value |
+| --- | --- | --- | --- | --- | --- |
+| NEXT_PUBLIC_TRANSACTION_INTERPRETATION_PROVIDER | `blockscout` \| `none` | Transaction interpretation provider that displays human readable transaction description | - | `none` | `blockscout` |
+
+ 
+
 ### Verified tokens info
 
 | Variable | Type| Description | Compulsoriness  | Default value | Example value |

icons/lightning.svg

+<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 20 20">
+  <path fill="currentColor" d="M10.833 7.5H17.5L9.167 20v-7.5H3.333l7.5-12.5v7.5ZM9.167 9.167v-3.15l-2.89 4.816h4.556v3.662l3.553-5.328h-5.22Z"/>
+</svg>

lib/api/resources.ts

@@ -65,6 +65,7 @@ import type {
   TransactionsResponseWatchlist,
   TransactionsSorting,
 } from 'types/api/transaction';
+import type { TxInterpretationResponse } from 'types/api/txInterpretation';
 import type { TTxsFilters } from 'types/api/txsFilters';
 import type { TxStateChanges } from 'types/api/txStateChanges';
 import type { VerifiedContractsSorting } from 'types/api/verifiedContracts';
@@ -246,6 +247,10 @@ export const RESOURCES = {
     pathParams: [ 'hash' as const ],
     filterFields: [],
   },
+  tx_interpretation: {
+    path: '/api/v2/transactions/:hash/summary',
+    pathParams: [ 'hash' as const ],
+  },
   withdrawals: {
     path: '/api/v2/withdrawals',
     filterFields: [],
@@ -651,6 +656,7 @@ Q extends 'tx_logs' ? LogsResponseTx :
 Q extends 'tx_token_transfers' ? TokenTransferResponse :
 Q extends 'tx_raw_trace' ? RawTracesResponse :
 Q extends 'tx_state_changes' ? TxStateChanges :
+Q extends 'tx_interpretation' ? TxInterpretationResponse :
 Q extends 'addresses' ? AddressesResponse :
 Q extends 'address' ? Address :
 Q extends 'address_counters' ? AddressCounters :

lib/mixpanel/utils.ts

@@ -13,6 +13,7 @@ export enum EventTypes {
   CONTRACT_VERIFICATION = 'Contract verification',
   QR_CODE = 'QR code',
   PAGE_WIDGET = 'Page widget',
+  TX_INTERPRETATION_INTERACTION = 'Transaction interpratetion interaction'
 }
 
 /* eslint-disable @typescript-eslint/indent */
@@ -78,5 +79,8 @@ Type extends EventTypes.QR_CODE ? {
 Type extends EventTypes.PAGE_WIDGET ? {
   'Type': 'Tokens dropdown' | 'Tokens show all (icon)' | 'Add to watchlist' | 'Address actions (more button)';
 } :
+Type extends EventTypes.TX_INTERPRETATION_INTERACTION ? {
+  'Type': 'Address click' | 'Token click';
+} :
 undefined;
 /* eslint-enable @typescript-eslint/indent */

mocks/txs/txInterpretation.ts

+import type { TxInterpretationResponse } from 'types/api/txInterpretation';
+
+export const txInterpretation: TxInterpretationResponse = {
+  data: {
+    summaries: [ {
+      summary_template: `{action_type} {amount} {token} to {to_address} on {timestamp}`,
+      summary_template_variables: {
+        action_type: { type: 'string', value: 'Transfer' },
+        amount: { type: 'currency', value: '100' },
+        token: {
+          type: 'token',
+          value: {
+            name: 'Duck',
+            type: 'ERC-20',
+            symbol: 'DUCK',
+            address: '0x486a3c5f34cDc4EF133f248f1C81168D78da52e8',
+            holders: '1152',
+            decimals: '18',
+            icon_url: null,
+            total_supply: '210000000000000000000000000',
+            exchange_rate: null,
+            circulating_market_cap: null,
+          },
+        },
+        to_address: {
+          type: 'address',
+          value: {
+            hash: '0x48c04ed5691981C42154C6167398f95e8f38a7fF',
+            implementation_name: null,
+            is_contract: false,
+            is_verified: false,
+            name: null,
+            private_tags: [],
+            public_tags: [],
+            watchlist_names: [],
+          },
+        },
+        timestamp: {
+          type: 'timestamp',
+          value: '1687005431',
+        },
+      },
+    } ],
+  },
+};

public/icons/name.d.ts

@@ -52,6 +52,7 @@
 	| "graphQL"
 	| "info"
 	| "key"
+	| "lightning"
 	| "link"
 	| "lock"
 	| "minus"

stubs/txInterpretation.ts

+import type { TxInterpretationResponse } from 'types/api/txInterpretation';
+
+import { TOKEN_INFO_ERC_20 } from './token';
+
+export const TX_INTERPRETATION: TxInterpretationResponse = {
+  data: {
+    summaries: [
+      {
+        summary_template: '{action_type} {source_amount} Ether into {destination_amount} {destination_token}',
+        summary_template_variables: {
+          action_type: { type: 'string', value: 'Wrap' },
+          source_amount: { type: 'currency', value: '0.7' },
+          destination_amount: { type: 'currency', value: '0.7' },
+          destination_token: {
+            type: 'token',
+            value: TOKEN_INFO_ERC_20,
+          },
+        },
+      },
+      {
+        summary_template: '{action_type} {source_amount} Ether into {destination_amount} {destination_token}',
+        summary_template_variables: {
+          action_type: { type: 'string', value: 'Wrap' },
+          source_amount: { type: 'currency', value: '0.7' },
+          destination_amount: { type: 'currency', value: '0.7' },
+          destination_token: {
+            type: 'token',
+            value: TOKEN_INFO_ERC_20,
+          },
+        },
+      },
+    ],
+  },
+};

types/api/txInterpretation.ts

+import type { AddressParam } from 'types/api/addressParams';
+import type { TokenInfo } from 'types/api/token';
+
+export interface TxInterpretationResponse {
+  data: {
+    summaries: Array<TxInterpretationSummary>;
+  };
+}
+
+export type TxInterpretationSummary = {
+  summary_template: string;
+  summary_template_variables: Record<string, TxInterpretationVariable>;
+}
+
+export type TxInterpretationVariable =
+  TxInterpretationVariableString |
+  TxInterpretationVariableCurrency |
+  TxInterpretationVariableTimestamp |
+  TxInterpretationVariableToken |
+  TxInterpretationVariableAddress;
+
+export type TxInterpretationVariableType = 'string' | 'currency' | 'timestamp' | 'token' | 'address';
+
+export type TxInterpretationVariableString = {
+  type: 'string';
+  value: string;
+}
+
+export type TxInterpretationVariableCurrency = {
+  type: 'currency';
+  value: string;
+}
+
+export type TxInterpretationVariableTimestamp = {
+  type: 'timestamp';
+  value: string;
+}
+
+export type TxInterpretationVariableToken = {
+  type: 'token';
+  value: TokenInfo;
+}
+
+export type TxInterpretationVariableAddress = {
+  type: 'address';
+  value: AddressParam;
+}

ui/pages/Transaction.tsx

@@ -8,11 +8,8 @@ import useApiQuery from 'lib/api/useApiQuery';
 import { useAppContext } from 'lib/contexts/app';
 import getQueryParamString from 'lib/router/getQueryParamString';
 import { TX } from 'stubs/tx';
-import AccountActionsMenu from 'ui/shared/AccountActionsMenu/AccountActionsMenu';
 import TextAd from 'ui/shared/ad/TextAd';
-import TxEntity from 'ui/shared/entities/tx/TxEntity';
 import EntityTags from 'ui/shared/EntityTags';
-import NetworkExplorers from 'ui/shared/NetworkExplorers';
 import PageTitle from 'ui/shared/Page/PageTitle';
 import RoutedTabs from 'ui/shared/Tabs/RoutedTabs';
 import TabsSkeleton from 'ui/shared/Tabs/TabsSkeleton';
@@ -23,6 +20,7 @@ import TxInternals from 'ui/tx/TxInternals';
 import TxLogs from 'ui/tx/TxLogs';
 import TxRawTrace from 'ui/tx/TxRawTrace';
 import TxState from 'ui/tx/TxState';
+import TxSubHeading from 'ui/tx/TxSubHeading';
 import TxTokenTransfer from 'ui/tx/TxTokenTransfer';
 
 const TransactionPageContent = () => {
@@ -40,7 +38,11 @@ const TransactionPageContent = () => {
   });
 
   const tabs: Array<RoutedTab> = [
-    { id: 'index', title: config.features.suave.isEnabled && data?.wrapped ? 'Confidential compute tx details' : 'Details', component: <TxDetails/> },
+    {
+      id: 'index',
+      title: config.features.suave.isEnabled && data?.wrapped ? 'Confidential compute tx details' : 'Details',
+      component: <TxDetails/>,
+    },
     config.features.suave.isEnabled && data?.wrapped ?
       { id: 'wrapped', title: 'Regular tx details', component: <TxDetailsWrapped data={ data.wrapped }/> } :
       undefined,
@@ -73,13 +75,7 @@ const TransactionPageContent = () => {
     };
   }, [ appProps.referrer ]);
 
-  const titleSecondRow = (
-    <>
-      <TxEntity hash={ hash } noLink noCopy={ false } fontWeight={ 500 } mr={ 2 } fontFamily="heading"/>
-      { !data?.tx_tag && <AccountActionsMenu mr={{ base: 0, lg: 3 }}/> }
-      <NetworkExplorers type="tx" pathParam={ hash } ml={{ base: 3, lg: 'auto' }}/>
-    </>
-  );
+  const titleSecondRow = <TxSubHeading hash={ hash } hasTag={ Boolean(data?.tx_tag) }/>;
 
   return (
     <>

ui/tx/TxDetails.tsx

@@ -44,7 +44,7 @@ import TextSeparator from 'ui/shared/TextSeparator';
 import TxFeeStability from 'ui/shared/tx/TxFeeStability';
 import Utilization from 'ui/shared/Utilization/Utilization';
 import VerificationSteps from 'ui/shared/verificationSteps/VerificationSteps';
-import TxDetailsActions from 'ui/tx/details/TxDetailsActions';
+import TxDetailsActions from 'ui/tx/details/txDetailsActions/TxDetailsActions';
 import TxDetailsFeePerGas from 'ui/tx/details/TxDetailsFeePerGas';
 import TxDetailsGasPrice from 'ui/tx/details/TxDetailsGasPrice';
 import TxDetailsOther from 'ui/tx/details/TxDetailsOther';
@@ -98,8 +98,6 @@ const TxDetails = () => {
     ...toAddress?.watchlist_names || [],
   ].map((tag) => <Tag key={ tag.label }>{ tag.display_name }</Tag>);
 
-  const actionsExist = data.actions && data.actions.length > 0;
-
   const executionSuccessBadge = toAddress?.is_contract && data.result === 'success' ? (
     <Tooltip label="Contract execution completed">
       <chakra.span display="inline-flex" ml={ 2 } mr={ 1 }>
@@ -242,12 +240,7 @@ const TxDetails = () => {
 
         <DetailsInfoItemDivider/>
 
-        { actionsExist && (
-          <>
-            <TxDetailsActions actions={ data.actions }/>
-            <DetailsInfoItemDivider/>
-          </>
-        ) }
+        <TxDetailsActions hash={ data.hash } actions={ data.actions } isTxDataLoading={ isPlaceholderData }/>
 
         <DetailsInfoItem
           title="From"

ui/tx/TxSubHeading.tsx

+import { Box, Flex, Link } from '@chakra-ui/react';
+import React from 'react';
+
+import config from 'configs/app';
+import useApiQuery from 'lib/api/useApiQuery';
+import { TX_INTERPRETATION } from 'stubs/txInterpretation';
+import AccountActionsMenu from 'ui/shared/AccountActionsMenu/AccountActionsMenu';
+import TxEntity from 'ui/shared/entities/tx/TxEntity';
+import NetworkExplorers from 'ui/shared/NetworkExplorers';
+import { TX_ACTIONS_BLOCK_ID } from 'ui/tx/details/txDetailsActions/TxDetailsActionsWrapper';
+import TxInterpretation from 'ui/tx/interpretation/TxInterpretation';
+
+type Props = {
+  hash?: string;
+  hasTag: boolean;
+}
+
+const TxSubHeading = ({ hash, hasTag }: Props) => {
+  const hasInterpretationFeature = config.features.txInterpretation.isEnabled;
+
+  const txInterpretationQuery = useApiQuery('tx_interpretation', {
+    pathParams: { hash },
+    queryOptions: {
+      enabled: Boolean(hash) && hasInterpretationFeature,
+      placeholderData: TX_INTERPRETATION,
+    },
+  });
+
+  const hasInterpretation = hasInterpretationFeature &&
+    (txInterpretationQuery.isPlaceholderData || txInterpretationQuery.data?.data.summaries.length);
+
+  return (
+    <Box display={{ base: 'block', lg: 'flex' }} alignItems="center" w="100%">
+      { hasInterpretationFeature && (
+        <Flex mr={{ base: 0, lg: 6 }} flexWrap="wrap" alignItems="center">
+          <TxInterpretation
+            summary={ txInterpretationQuery.data?.data.summaries[0] }
+            isLoading={ txInterpretationQuery.isPlaceholderData }
+            fontSize="lg"
+          />
+          { !txInterpretationQuery.isPlaceholderData && txInterpretationQuery.data?.data.summaries && txInterpretationQuery.data?.data.summaries.length > 1 &&
+            <Link ml={ 3 } href={ `#${ TX_ACTIONS_BLOCK_ID }` }>all actions</Link> }
+        </Flex>
+      ) }
+      { !hasInterpretation && <TxEntity hash={ hash } noLink noCopy={ false } fontWeight={ 500 } mr={{ base: 0, lg: 2 }} fontFamily="heading"/> }
+      <Flex alignItems="center" justifyContent={{ base: 'start', lg: 'space-between' }} flexGrow={ 1 }>
+        { !hasTag && <AccountActionsMenu mr={ 3 } mt={{ base: 3, lg: 0 }}/> }
+        <NetworkExplorers type="tx" pathParam={ hash } ml={{ base: 0, lg: 'auto' }} mt={{ base: 3, lg: 0 }}/>
+      </Flex>
+    </Box>
+  );
+};
+
+export default TxSubHeading;

ui/tx/details/txDetailsActions/TxDetailsActions.tsx

+import React from 'react';
+
+import type { TxAction } from 'types/api/txAction';
+
+import config from 'configs/app';
+import TxDetailsActionsInterpretation from 'ui/tx/details/txDetailsActions/TxDetailsActionsInterpretation';
+import TxDetailsActionsRaw from 'ui/tx/details/txDetailsActions/TxDetailsActionsRaw';
+
+type Props = {
+  isTxDataLoading: boolean;
+  actions?: Array<TxAction>;
+  hash?: string;
+}
+
+const TxDetailsActions = ({ isTxDataLoading, actions, hash }: Props) => {
+  if (config.features.txInterpretation.isEnabled) {
+    return <TxDetailsActionsInterpretation hash={ hash } isTxDataLoading={ isTxDataLoading }/>;
+  }
+
+  /* if tx interpretation is not configured, show tx actions from tx info */
+  if (actions && actions.length > 0) {
+    return <TxDetailsActionsRaw actions={ actions } isLoading={ isTxDataLoading }/>;
+  }
+
+  return null;
+};
+
+export default TxDetailsActions;

ui/tx/details/txDetailsActions/TxDetailsActionsInterpretation.tsx

+import React from 'react';
+
+import useApiQuery from 'lib/api/useApiQuery';
+import { TX_INTERPRETATION } from 'stubs/txInterpretation';
+import DetailsInfoItemDivider from 'ui/shared/DetailsInfoItemDivider';
+import TxInterpretation from 'ui/tx/interpretation/TxInterpretation';
+
+import TxDetailsActionsWrapper from './TxDetailsActionsWrapper';
+
+interface Props {
+  hash?: string;
+  isTxDataLoading: boolean;
+}
+
+const TxDetailsActionsInterpretation = ({ hash, isTxDataLoading }: Props) => {
+  const txInterpretationQuery = useApiQuery('tx_interpretation', {
+    pathParams: { hash },
+    queryOptions: {
+      enabled: Boolean(hash),
+      placeholderData: TX_INTERPRETATION,
+      refetchOnMount: false,
+    },
+  });
+
+  const actions = txInterpretationQuery.data?.data.summaries;
+
+  if (!actions || actions.length < 2) {
+    return null;
+  }
+
+  return (
+    <>
+      <TxDetailsActionsWrapper isLoading={ isTxDataLoading || txInterpretationQuery.isPlaceholderData }>
+        { actions.map((action, index: number) => (
+          <TxInterpretation
+            key={ index }
+            summary={ action }
+            isLoading={ isTxDataLoading || txInterpretationQuery.isPlaceholderData }
+          />
+        ),
+        ) }
+      </TxDetailsActionsWrapper>
+      <DetailsInfoItemDivider/>
+    </>
+  );
+};
+
+export default TxDetailsActionsInterpretation;

ui/tx/details/txDetailsActions/TxDetailsActionsRaw.tsx

+import React from 'react';
+
+import type { TxAction } from 'types/api/txAction';
+
+import DetailsInfoItemDivider from 'ui/shared/DetailsInfoItemDivider';
+
+import TxDetailsAction from './TxDetailsAction';
+import TxDetailsActionsWrapper from './TxDetailsActionsWrapper';
+
+interface Props {
+  actions: Array<TxAction>;
+  isLoading: boolean;
+}
+
+const TxDetailsActionsRaw = ({ actions, isLoading }: Props) => {
+  return (
+    <>
+      <TxDetailsActionsWrapper isLoading={ isLoading }>
+        { actions.map((action, index: number) => <TxDetailsAction key={ index } action={ action }/>) }
+      </TxDetailsActionsWrapper>
+      <DetailsInfoItemDivider/>
+    </>
+  );
+};
+
+export default TxDetailsActionsRaw;

ui/tx/details/TxDetailsActions.tsx → ui/tx/details/txDetailsActions/TxDetailsActionsWrapper.tsx

 import { Flex, useColorModeValue } from '@chakra-ui/react';
 import React from 'react';
 
-import type { TxAction } from 'types/api/txAction';
-
 import DetailsInfoItem from 'ui/shared/DetailsInfoItem';
 
-import TxDetailsAction from './TxDetailsAction';
-
 const SCROLL_GRADIENT_HEIGHT = 48;
 
-interface Props {
-  actions: Array<TxAction>;
+type Props = {
+  children: React.ReactNode;
+  isLoading?: boolean;
 }
 
-const TxDetailsActions = ({ actions }: Props) => {
+export const TX_ACTIONS_BLOCK_ID = 'tx-actions';
+
+const TxDetailsActions = ({ children, isLoading }: Props) => {
   const containerRef = React.useRef<HTMLDivElement>(null);
   const [ hasScroll, setHasScroll ] = React.useState(false);
 
@@ -34,8 +33,10 @@ const TxDetailsActions = ({ actions }: Props) => {
       hint="Highlighted events of the transaction"
       note={ hasScroll ? 'Scroll to see more' : undefined }
       position="relative"
+      isLoading={ isLoading }
     >
       <Flex
+        id={ TX_ACTIONS_BLOCK_ID }
         flexDirection="column"
         alignItems="stretch"
         rowGap={ 5 }
@@ -55,7 +56,7 @@ const TxDetailsActions = ({ actions }: Props) => {
         pr={ hasScroll ? 5 : 0 }
         pb={ hasScroll ? 10 : 0 }
       >
-        { actions.map((action, index: number) => <TxDetailsAction key={ index } action={ action }/>) }
+        { children }
       </Flex>
     </DetailsInfoItem>
   );

ui/tx/interpretation/TxInterpretation.pw.tsx

+import { test, expect } from '@playwright/experimental-ct-react';
+import React from 'react';
+
+import { txInterpretation as txInterpretationMock } from 'mocks/txs/txInterpretation';
+import TestApp from 'playwright/TestApp';
+
+import TxInterpretation from './TxInterpretation';
+
+test('base view +@mobile +@dark-mode', async({ mount }) => {
+  const component = await mount(
+    <TestApp>
+      <TxInterpretation summary={ txInterpretationMock.data.summaries[0] } isLoading={ false }/>
+    </TestApp>,
+  );
+
+  await expect(component).toHaveScreenshot();
+});

ui/tx/interpretation/TxInterpretation.tsx

+import { Skeleton, Flex, Text, chakra } from '@chakra-ui/react';
+import BigNumber from 'bignumber.js';
+import React from 'react';
+
+import type { TxInterpretationSummary, TxInterpretationVariable } from 'types/api/txInterpretation';
+
+import config from 'configs/app';
+import dayjs from 'lib/date/dayjs';
+import * as mixpanel from 'lib/mixpanel/index';
+import AddressEntity from 'ui/shared/entities/address/AddressEntity';
+import TokenEntity from 'ui/shared/entities/token/TokenEntity';
+import IconSvg from 'ui/shared/IconSvg';
+
+import { extractVariables, getStringChunks, NATIVE_COIN_SYMBOL_VAR_NAME } from './utils';
+
+type Props = {
+  summary?: TxInterpretationSummary;
+  isLoading?: boolean;
+  className?: string;
+}
+
+const TxInterpretationElementByType = ({ variable }: { variable?: TxInterpretationVariable }) => {
+  const onAddressClick = React.useCallback(() => {
+    mixpanel.logEvent(mixpanel.EventTypes.TX_INTERPRETATION_INTERACTION, { Type: 'Address click' });
+  }, []);
+
+  const onTokenClick = React.useCallback(() => {
+    mixpanel.logEvent(mixpanel.EventTypes.TX_INTERPRETATION_INTERACTION, { Type: 'Token click' });
+  }, []);
+
+  if (!variable) {
+    return null;
+  }
+
+  const { type, value } = variable;
+  switch (type) {
+    case 'address': {
+      return (
+        <AddressEntity
+          address={ value }
+          truncation="constant"
+          sx={{ ':not(:first-child)': { marginLeft: 1 } }}
+          whiteSpace="initial"
+          onClick={ onAddressClick }
+        />
+      );
+    }
+    case 'token':
+      return (
+        <TokenEntity
+          token={ value }
+          onlySymbol
+          noCopy
+          width="fit-content"
+          sx={{ ':not(:first-child)': { marginLeft: 1 } }}
+          mr={ 2 }
+          whiteSpace="initial"
+          onClick={ onTokenClick }
+        />
+      );
+    case 'currency': {
+      let numberString = '';
+      if (BigNumber(value).isLessThan(0.1)) {
+        numberString = BigNumber(value).toPrecision(2);
+      } else if (BigNumber(value).isLessThan(10000)) {
+        numberString = BigNumber(value).dp(2).toFormat();
+      } else if (BigNumber(value).isLessThan(1000000)) {
+        numberString = BigNumber(value).dividedBy(1000).toFormat(2) + 'K';
+      } else {
+        numberString = BigNumber(value).dividedBy(1000000).toFormat(2) + 'M';
+      }
+      return <Text>{ numberString + ' ' }</Text>;
+    }
+    case 'timestamp':
+      // timestamp is in unix format
+      return <Text color="text_secondary">{ dayjs(Number(value) * 1000).format('llll') + ' ' }</Text>;
+    case 'string':
+    default: {
+      return <Text color="text_secondary">{ value.toString() + ' ' }</Text>;
+    }
+  }
+};
+
+const TxInterpretation = ({ summary, isLoading, className }: Props) => {
+  if (!summary) {
+    return null;
+  }
+
+  const template = summary.summary_template;
+  const variables = summary.summary_template_variables;
+
+  const variablesNames = extractVariables(template);
+
+  const chunks = getStringChunks(template);
+
+  return (
+    <Skeleton display="flex" flexWrap="wrap" alignItems="center" isLoaded={ !isLoading } className={ className }>
+      <IconSvg name="lightning" boxSize={ 5 } color="text_secondary" mr={ 2 }/>
+      { chunks.map((chunk, index) => {
+        return (
+          <Flex whiteSpace="pre" key={ chunk + index } fontWeight={ 500 }>
+            <Text color="text_secondary">{ chunk.trim() + (chunk.trim() && variablesNames[index] ? ' ' : '') }</Text>
+            { index < variablesNames.length && (
+              variablesNames[index] === NATIVE_COIN_SYMBOL_VAR_NAME ?
+                <Text>{ config.chain.currency.symbol + ' ' }</Text> :
+                <TxInterpretationElementByType variable={ variables[variablesNames[index]] }/>
+            ) }
+          </Flex>
+        );
+      }) }
+    </Skeleton>
+  );
+};
+
+export default chakra(TxInterpretation);

ui/tx/interpretation/utils.test.ts

+import { extractVariables, getStringChunks } from './utils';
+
+const template = '{action_type} {source_amount} {native} into {destination_amount} {destination_token}';
+
+it('extracts variables names', () => {
+  const result = extractVariables(template);
+  expect(result).toEqual([ 'action_type', 'source_amount', 'native', 'destination_amount', 'destination_token' ]);
+});
+
+it('split string without capturing variables', () => {
+  const result = getStringChunks(template);
+  expect(result).toEqual([ '', ' ', ' ', ' into ', ' ', '' ]);
+});

ui/tx/interpretation/utils.ts

+// we use that regex as a separator when splitting template and dont want to capture variables
+// eslint-disable-next-line regexp/no-useless-non-capturing-group
+export const VAR_REGEXP = /\{(?:[^}]+)\}/g;
+
+export const NATIVE_COIN_SYMBOL_VAR_NAME = 'native';
+
+export function extractVariables(templateString: string) {
+
+  const matches = templateString.match(VAR_REGEXP);
+
+  const variablesNames = matches ? matches.map(match => match.slice(1, -1)) : [];
+
+  return variablesNames;
+}
+
+export function getStringChunks(template: string) {
+  return template.split(VAR_REGEXP);
+}