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import { PayloadAction, createAsyncThunk, createSlice } from '@reduxjs/toolkit';
import { RootState } from '../../../../reducers';
import {
Hex,
CaipChainId,
parseCaipChainId,
CaipAssetType,
} from '@metamask/utils';
import { createSelector } from 'reselect';
import {
selectChainId,
selectNetworkConfigurations,
} from '../../../../selectors/networkController';
import { uniqBy } from 'lodash';
import {
ALLOWED_BRIDGE_CHAIN_IDS,
AllowedBridgeChainIds,
formatChainIdToCaip,
isSolanaChainId,
selectBridgeQuotes as selectBridgeQuotesBase,
SortOrder,
selectBridgeFeatureFlags as selectBridgeFeatureFlagsBase,
DEFAULT_FEATURE_FLAG_CONFIG,
isNonEvmChainId,
formatChainIdToHex,
} from '@metamask/bridge-controller';
import {
BridgeToken,
BridgeViewMode,
} from '../../../../components/UI/Bridge/types';
import { PopularList } from '../../../../util/networks/customNetworks';
import { selectGasFeeControllerEstimates } from '../../../../selectors/gasFeeController';
import { MetaMetrics } from '../../../Analytics';
import { GasFeeEstimates } from '@metamask/gas-fee-controller';
import { selectRemoteFeatureFlags } from '../../../../selectors/featureFlagController';
import { getTokenExchangeRate } from '../../../../components/UI/Bridge/utils/exchange-rates';
import {
selectHasCreatedSolanaMainnetAccount,
selectCanSignTransactions,
} from '../../../../selectors/accountsController';
import { selectBasicFunctionalityEnabled } from '../../../../selectors/settings';
import { hasMinimumRequiredVersion } from './utils/hasMinimumRequiredVersion';
import { Bip44TokensForDefaultPairs } from '../../../../components/UI/Bridge/constants/default-swap-dest-tokens';
export const selectBridgeControllerState = (state: RootState) =>
state.engine.backgroundState?.BridgeController;
export interface BridgeState {
sourceAmount: string | undefined;
destAmount: string | undefined;
sourceToken: BridgeToken | undefined;
destToken: BridgeToken | undefined;
destAddress: string | undefined;
selectedSourceChainIds: (Hex | CaipChainId)[] | undefined;
selectedDestChainId: Hex | CaipChainId | undefined;
slippage: string | undefined;
isSubmittingTx: boolean;
bridgeViewMode: BridgeViewMode | undefined;
isMaxSourceAmount?: boolean;
isSelectingRecipient: boolean;
isSelectingToken: boolean;
isGasIncludedSTXSendBundleSupported: boolean;
isGasIncluded7702Supported: boolean;
/**
* Tracks whether the user has manually selected a destination token.
* When true, changing the source token to a different network won't auto-update the dest token.
* When false, changing source network will update dest to the default for that network.
*/
isDestTokenManuallySet: boolean;
}
export const initialState: BridgeState = {
sourceAmount: undefined,
destAmount: undefined,
sourceToken: undefined,
destToken: undefined,
destAddress: undefined,
selectedSourceChainIds: undefined,
selectedDestChainId: undefined,
slippage: '0.5',
isSubmittingTx: false,
bridgeViewMode: undefined,
isMaxSourceAmount: false,
isSelectingRecipient: false,
isSelectingToken: false,
isGasIncludedSTXSendBundleSupported: false,
isGasIncluded7702Supported: false,
isDestTokenManuallySet: false,
};
const name = 'bridge';
export const setSourceTokenExchangeRate = createAsyncThunk(
'bridge/setSourceTokenExchangeRate',
getTokenExchangeRate,
);
export const setDestTokenExchangeRate = createAsyncThunk(
'bridge/setDestTokenExchangeRate',
getTokenExchangeRate,
);
const slice = createSlice({
name,
initialState,
reducers: {
setBridgeViewMode: (state, action: PayloadAction<BridgeViewMode>) => {
state.bridgeViewMode = action.payload;
},
setSourceAmount: (state, action: PayloadAction<string | undefined>) => {
state.sourceAmount = action.payload;
// Clears max flag when amount is set via keypad
state.isMaxSourceAmount = false;
},
setSourceAmountAsMax: (
state,
action: PayloadAction<string | undefined>,
) => {
state.sourceAmount = action.payload;
state.isMaxSourceAmount = true;
},
setDestAmount: (state, action: PayloadAction<string | undefined>) => {
state.destAmount = action.payload;
},
setSelectedSourceChainIds: (
state,
action: PayloadAction<(Hex | CaipChainId)[]>,
) => {
state.selectedSourceChainIds = action.payload;
},
setSelectedDestChainId: (
state,
action: PayloadAction<Hex | CaipChainId | undefined>,
) => {
state.selectedDestChainId = action.payload;
},
resetBridgeState: () => initialState,
setSourceToken: (state, action: PayloadAction<BridgeToken | undefined>) => {
state.sourceToken = action.payload;
},
setDestToken: (state, action: PayloadAction<BridgeToken>) => {
state.destToken = action.payload;
// Update selectedDestChainId to match the destination token's chain ID
state.selectedDestChainId = action.payload.chainId;
},
/**
* Sets whether the destination token was manually selected by the user.
* When true, auto-updates to dest token are prevented when source chain changes.
*/
setIsDestTokenManuallySet: (state, action: PayloadAction<boolean>) => {
state.isDestTokenManuallySet = action.payload;
},
setDestAddress: (state, action: PayloadAction<string | undefined>) => {
state.destAddress = action.payload;
},
setSlippage: (state, action: PayloadAction<string | undefined>) => {
state.slippage = action.payload;
},
setIsSubmittingTx: (state, action: PayloadAction<boolean>) => {
state.isSubmittingTx = action.payload;
},
setIsSelectingRecipient: (state, action: PayloadAction<boolean>) => {
state.isSelectingRecipient = action.payload;
},
setIsSelectingToken: (state, action: PayloadAction<boolean>) => {
state.isSelectingToken = action.payload;
},
setIsGasIncludedSTXSendBundleSupported: (
state,
action: PayloadAction<boolean>,
) => {
state.isGasIncludedSTXSendBundleSupported = action.payload;
},
setIsGasIncluded7702Supported: (state, action: PayloadAction<boolean>) => {
state.isGasIncluded7702Supported = action.payload;
},
},
extraReducers: (builder) => {
builder.addCase(setSourceTokenExchangeRate.pending, (state) => {
if (state.sourceToken) {
state.sourceToken.currencyExchangeRate = undefined;
}
});
builder.addCase(setDestTokenExchangeRate.pending, (state) => {
if (state.destToken) {
state.destToken.currencyExchangeRate = undefined;
}
});
builder.addCase(setSourceTokenExchangeRate.fulfilled, (state, action) => {
if (
state.sourceToken &&
// Make sure the fetched exchange rate is for the correct token
action.meta.arg.chainId === state.sourceToken.chainId &&
action.meta.arg.tokenAddress === state.sourceToken.address
) {
state.sourceToken.currencyExchangeRate = action.payload ?? undefined;
}
});
builder.addCase(setDestTokenExchangeRate.fulfilled, (state, action) => {
if (
state.destToken &&
// Make sure the fetched exchange rate is for the correct token
action.meta.arg.chainId === state.destToken.chainId &&
action.meta.arg.tokenAddress === state.destToken.address
) {
state.destToken.currencyExchangeRate = action.payload ?? undefined;
}
});
},
});
const { actions, reducer } = slice;
export default reducer;
// Base selectors
const selectBridgeState = (state: RootState) => state[name];
// Derived selectors using createSelector
export const selectSourceAmount = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.sourceAmount,
);
export const selectDestAmount = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.destAmount,
);
export const selectIsMaxSourceAmount = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.isMaxSourceAmount ?? false,
);
export const selectBridgeViewMode = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.bridgeViewMode,
);
/**
* Only includes networks user has added.
* Will include them regardless of feature flag enabled or not.
*/
export const selectAllBridgeableNetworks = createSelector(
selectNetworkConfigurations,
(networkConfigurations) => {
const networks = uniqBy(
Object.values(networkConfigurations),
'chainId',
).filter(({ chainId }) =>
ALLOWED_BRIDGE_CHAIN_IDS.includes(chainId as AllowedBridgeChainIds),
);
return networks;
},
);
export const selectBridgeFeatureFlags = createSelector(
selectRemoteFeatureFlags,
(remoteFeatureFlags) => {
const bridgeConfig = remoteFeatureFlags.bridgeConfigV2;
const featureFlags = selectBridgeFeatureFlagsBase({
remoteFeatureFlags: {
bridgeConfig,
},
});
if (hasMinimumRequiredVersion(featureFlags.minimumVersion)) {
return featureFlags;
}
return selectBridgeFeatureFlagsBase({
remoteFeatureFlags: {
bridgeConfig: DEFAULT_FEATURE_FLAG_CONFIG,
},
});
},
);
/**
* Checks whether a CAIP chain ID from chainRanking is supported by this version of the client.
* This ensures that chains added to the remote chainRanking flag in the future
* won't be surfaced by older app versions that lack support for them.
*/
const isAllowedBridgeChainId = (caipChainId: string): boolean => {
if (caipChainId.startsWith('eip155:')) {
const hexChainId = formatChainIdToHex(caipChainId);
return ALLOWED_BRIDGE_CHAIN_IDS.includes(
hexChainId as AllowedBridgeChainIds,
);
}
return ALLOWED_BRIDGE_CHAIN_IDS.includes(
caipChainId as AllowedBridgeChainIds,
);
};
/**
* Selector that returns the chainRanking from feature flags filtered by:
* 1. Chains supported by this version of the client
* 2. User-configured networks
* Used by NetworkPills in SOURCE mode to show all networks the user has added.
*/
export const selectSourceChainRanking = createSelector(
selectBridgeFeatureFlags,
selectNetworkConfigurations,
(bridgeFeatureFlags, networkConfigurations) => {
const { chainRanking } = bridgeFeatureFlags;
const configuredChainIds = new Set(Object.keys(networkConfigurations));
if (!chainRanking) {
return [];
}
return chainRanking.filter((chain) => {
const { chainId } = chain;
// First, ensure this chain is supported by the current client version
if (!isAllowedBridgeChainId(chainId)) {
return false;
}
// For EVM chains (eip155:*), extract the hex chain ID and check if enabled
if (chainId.startsWith('eip155:')) {
const hexChainId = formatChainIdToHex(chainId);
return configuredChainIds.has(hexChainId);
}
// For non-EVM chains, check directly against the CAIP chain ID
return configuredChainIds.has(chainId);
});
},
);
/**
* Selector that returns all chains from chainRanking that are supported by this
* version of the client.
* Used by NetworkPills in DEST mode to show all available destination networks.
*/
export const selectDestChainRanking = createSelector(
selectBridgeFeatureFlags,
(bridgeFeatureFlags) => {
const { chainRanking } = bridgeFeatureFlags;
return (chainRanking ?? []).filter((chain) =>
isAllowedBridgeChainId(chain.chainId),
);
},
);
/**
* Factory selector that returns a function to check if bridge is enabled for a source chain.
* Use this when you need to check multiple chain IDs or when the chain ID is determined after render.
* @example
* const getIsBridgeEnabledSource = useSelector(selectIsBridgeEnabledSourceFactory);
* const isBridgeEnabledSource = getIsBridgeEnabledSource(chainId);
*/
export const selectIsBridgeEnabledSourceFactory = createSelector(
selectBridgeFeatureFlags,
(bridgeFeatureFlags) => (chainId: Hex | CaipChainId) => {
const caipChainId = formatChainIdToCaip(chainId);
return bridgeFeatureFlags.chainRanking?.some(
(chain) =>
chain.chainId === caipChainId && isAllowedBridgeChainId(chain.chainId),
);
},
);
/**
* Selector that determines if swap functionality is enabled
* Combines all the conditions needed for swap functionality to be available
*/
export const selectIsSwapsEnabled = createSelector(
[selectCanSignTransactions, selectBasicFunctionalityEnabled],
(canSignTransactions, basicFunctionalityEnabled) =>
canSignTransactions && basicFunctionalityEnabled,
);
export const selectTopAssetsFromFeatureFlags = createSelector(
selectBridgeFeatureFlags,
(_: RootState, chainId: Hex | CaipChainId | undefined) => chainId,
(bridgeFeatureFlags, chainId) =>
chainId
? bridgeFeatureFlags.chains[formatChainIdToCaip(chainId)]?.topAssets
: undefined,
);
/**
* TODO The MultichainNetworkConfiguration.chainId type is wrong. It can be both Hex or CaipChainId.
*/
export const selectEnabledSourceChains = createSelector(
selectAllBridgeableNetworks,
selectBridgeFeatureFlags,
(networks, bridgeFeatureFlags) =>
networks.filter(
({ chainId }) =>
bridgeFeatureFlags.chains[formatChainIdToCaip(chainId)]?.isActiveSrc,
),
);
export const selectEnabledDestChains = createSelector(
selectAllBridgeableNetworks,
selectBridgeFeatureFlags,
selectHasCreatedSolanaMainnetAccount,
(networks, bridgeFeatureFlags, hasSolanaAccount) => {
// We always want to show the popular list in the destination chain selector
const popularListFormatted = PopularList.map(
({ chainId, nickname, rpcUrl, ticker, rpcPrefs }) => ({
chainId,
name: nickname,
rpcUrl,
ticker,
rpcPrefs,
}),
);
return uniqBy([...networks, ...popularListFormatted], 'chainId').filter(
({ chainId }) => {
const caipChainId = formatChainIdToCaip(chainId);
// Only include Solana chains as active destinations if user has a Solana account
if (isSolanaChainId(chainId) && !hasSolanaAccount) {
return false;
}
return bridgeFeatureFlags.chains[caipChainId]?.isActiveDest;
},
);
},
);
// Combined selectors for related state
export const selectSourceToken = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.sourceToken,
);
export const selectDestToken = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.destToken,
);
export const selectSelectedSourceChainIds = createSelector(
selectBridgeState,
selectEnabledSourceChains,
(bridgeState, enabledSourceChains) => {
// If selectedSourceChainIds is undefined, use the chainIds from enabledSourceChains
if (bridgeState.selectedSourceChainIds === undefined) {
return enabledSourceChains.map((chain) => chain.chainId);
}
return bridgeState.selectedSourceChainIds;
},
);
export const selectSelectedDestChainId = createSelector(
selectBridgeState,
selectSourceToken,
(bridgeState, sourceToken) => {
// If selectedDestChainIds is undefined, use the same chain as the source token
if (bridgeState.selectedDestChainId === undefined) {
return sourceToken?.chainId;
}
return bridgeState.selectedDestChainId;
},
);
export const selectSlippage = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.slippage,
);
export const selectDestAddress = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.destAddress,
);
// Selectors for gas included STX/SendBundle support
export const selectIsGasIncludedSTXSendBundleSupported = (state: RootState) =>
state.bridge.isGasIncludedSTXSendBundleSupported;
// Selector for 7702 gas included support
export const selectIsGasIncluded7702Supported = (state: RootState) =>
state.bridge.isGasIncluded7702Supported;
const selectControllerFields = (state: RootState) => ({
...state.engine.backgroundState.BridgeController,
gasFeeEstimates: selectGasFeeControllerEstimates(state) as GasFeeEstimates,
...state.engine.backgroundState.MultichainAssetsRatesController,
...state.engine.backgroundState.TokenRatesController,
...state.engine.backgroundState.CurrencyRateController,
participateInMetaMetrics: MetaMetrics.getInstance().isEnabled(),
remoteFeatureFlags: {
bridgeConfig: selectRemoteFeatureFlags(state).bridgeConfig,
},
});
export const selectBridgeQuotes = createSelector(
selectControllerFields,
(requiredControllerFields) =>
selectBridgeQuotesBase(requiredControllerFields, {
sortOrder: SortOrder.COST_ASC, // TODO for v1 we don't allow user to select alternative quotes, hardcode for now
selectedQuote: null, // TODO for v1 we don't allow user to select alternative quotes, pass in null for now
}),
);
export const selectIsSolanaSourced = createSelector(
selectSourceToken,
(sourceToken) => sourceToken?.chainId && isSolanaChainId(sourceToken.chainId),
);
export const selectIsSolanaToNonSolana = createSelector(
selectSourceToken,
selectDestToken,
(sourceToken, destToken) =>
sourceToken?.chainId &&
isSolanaChainId(sourceToken.chainId) &&
destToken?.chainId &&
!isSolanaChainId(destToken.chainId),
);
export const selectIsEvmToNonEvm = createSelector(
selectSourceToken,
selectDestToken,
(sourceToken, destToken) =>
sourceToken?.chainId &&
!isNonEvmChainId(sourceToken.chainId) &&
destToken?.chainId &&
isNonEvmChainId(destToken.chainId),
);
export const selectIsNonEvmToEvm = createSelector(
selectSourceToken,
selectDestToken,
(sourceToken, destToken) =>
sourceToken?.chainId &&
isNonEvmChainId(sourceToken.chainId) &&
destToken?.chainId &&
!isNonEvmChainId(destToken.chainId),
);
export const selectIsNonEvmNonEvmBridge = createSelector(
selectSourceToken,
selectDestToken,
(sourceToken, destToken) =>
sourceToken?.chainId &&
isNonEvmChainId(sourceToken.chainId) &&
destToken?.chainId &&
isNonEvmChainId(destToken.chainId) &&
sourceToken.chainId !== destToken.chainId,
);
export const selectIsSolanaSwap = createSelector(
selectSourceToken,
selectDestToken,
(sourceToken, destToken) =>
sourceToken?.chainId &&
isSolanaChainId(sourceToken.chainId) &&
destToken?.chainId &&
isSolanaChainId(destToken.chainId),
);
export const selectIsEvmNonEvmBridge = createSelector(
selectIsEvmToNonEvm,
selectIsNonEvmToEvm,
(isEvmToNonEvm, isNonEvmToEvm) => isEvmToNonEvm || isNonEvmToEvm,
);
export const selectIsBridge = createSelector(
selectSourceToken,
selectDestToken,
(sourceToken, destToken) =>
sourceToken?.chainId &&
destToken?.chainId &&
sourceToken.chainId !== destToken.chainId,
);
export const selectIsSwap = createSelector(
selectSourceToken,
selectDestToken,
(sourceToken, destToken) =>
sourceToken?.chainId &&
destToken?.chainId &&
sourceToken.chainId === destToken.chainId,
);
/**
* Selector that returns the gas included quote params for bridge and swap transactions.
* Combines isSwap, STX/SendBundle support, and 7702 support to determine the correct
* gas included parameters.
*/
export const selectGasIncludedQuoteParams = createSelector(
[
selectIsSwap,
selectIsGasIncludedSTXSendBundleSupported,
selectIsGasIncluded7702Supported,
],
(isSwap, gasIncludedSTXSendBundleSupport, gasIncluded7702Support) => {
// If STX send bundle support is true, we favor it over 7702.
if (gasIncludedSTXSendBundleSupport) {
return { gasIncluded: true, gasIncluded7702: false };
}
// If 7702 support is true, we use it for swap transactions.
const gasIncludedWith7702Enabled =
Boolean(isSwap) && gasIncluded7702Support;
return {
gasIncluded: gasIncludedWith7702Enabled,
gasIncluded7702: gasIncludedWith7702Enabled,
};
},
);
export const selectIsEvmSwap = createSelector(
selectIsSwap,
selectIsSolanaSwap,
(isSwap, isSolanaSwap) => isSwap && !isSolanaSwap,
);
export const selectIsSubmittingTx = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.isSubmittingTx,
);
export const selectIsSelectingRecipient = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.isSelectingRecipient,
);
export const selectIsSelectingToken = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.isSelectingToken,
);
export const selectIsDestTokenManuallySet = createSelector(
selectBridgeState,
(bridgeState) => bridgeState.isDestTokenManuallySet,
);
export const selectIsGaslessSwapEnabled = createSelector(
selectIsSwap,
selectBridgeFeatureFlags,
(_: RootState, chainId: Hex | CaipChainId) => chainId,
(isSwap, bridgeFeatureFlags, chainId) => {
const caipChainId = formatChainIdToCaip(chainId);
const chainConfig = bridgeFeatureFlags.chains[caipChainId];
return isSwap && chainConfig?.isGaslessSwapEnabled === true;
},
);
export const selectNoFeeAssets = createSelector(
selectBridgeFeatureFlags,
(_: RootState, chainId: Hex | CaipChainId | undefined) => chainId,
(bridgeFeatureFlags, chainId) => {
if (!chainId) {
return [];
}
const caipChainId = formatChainIdToCaip(chainId);
return bridgeFeatureFlags.chains[caipChainId]?.noFeeAssets;
},
);
export const selectBip44DefaultPair = createSelector(
selectBridgeFeatureFlags,
selectChainId,
(bridgeFeatureFlags, chainId) => {
const caipChainId = formatChainIdToCaip(chainId);
const { namespace } = parseCaipChainId(caipChainId);
const bip44DefaultPair =
bridgeFeatureFlags.bip44DefaultPairs?.[namespace]?.standard;
if (!bip44DefaultPair) {
return undefined;
}
// If 0th entry doesn't exist, error thrown and we return undefined
const pairs = Object.entries(bip44DefaultPair);
const sourceAssetId = pairs[0]?.[0];
const destAssetId = pairs[0]?.[1];
const sourceAsset =
Bip44TokensForDefaultPairs[sourceAssetId as CaipAssetType];
const destAsset = Bip44TokensForDefaultPairs[destAssetId as CaipAssetType];
if (!sourceAsset || !destAsset) {
return undefined;
}
return { sourceAsset, destAsset };
},
);
export const selectIsBridgeEnabledSource = createSelector(
selectIsBridgeEnabledSourceFactory,
(_: RootState, chainId: Hex | CaipChainId) => chainId,
(getIsBridgeEnabledSource, chainId) => getIsBridgeEnabledSource(chainId),
);
export const selectIsBridgeEnabledDest = createSelector(
selectBridgeFeatureFlags,
(_: RootState, chainId: Hex | CaipChainId) => chainId,
(bridgeFeatureFlags, chainId) => {
const caipChainId = formatChainIdToCaip(chainId);
return (
bridgeFeatureFlags.support &&
bridgeFeatureFlags.chains[caipChainId]?.isActiveDest
);
},
);
export const selectIsSwapsLive = createSelector(
[
(state: RootState, chainId: Hex | CaipChainId) =>
selectIsBridgeEnabledSource(state, chainId),
(state: RootState, chainId: Hex | CaipChainId) =>
selectIsBridgeEnabledDest(state, chainId),
],
(isEnabledSource, isEnabledDest) => isEnabledSource || isEnabledDest,
);
// Actions
export const {
setSourceAmount,
setSourceAmountAsMax,
setDestAmount,
resetBridgeState,
setSourceToken,
setDestToken,
setIsDestTokenManuallySet,
setSelectedSourceChainIds,
setSelectedDestChainId,
setSlippage,
setDestAddress,
setIsSubmittingTx,
setBridgeViewMode,
setIsSelectingRecipient,
setIsSelectingToken,
setIsGasIncludedSTXSendBundleSupported,
setIsGasIncluded7702Supported,
} = actions;