feat: increased debounce swap quote rate (#6666)

* feat: increased debounce swap quote time

* fix

src/featureFlags/flags/debounceSwapQuote.ts

+import { BaseVariant, FeatureFlag, useBaseFlag } from '../index'
+
+export function useDebounceSwapQuoteFlag(): BaseVariant {
+  return useBaseFlag(FeatureFlag.debounceSwapQuote)
+}
+
+export { BaseVariant as DebounceSwapQuoteVariant }

src/featureFlags/flags/featureFlags.ts

-/**
- * The value here must match the value in the statsig dashboard, if you plan to use statsig.
- */
-export enum FeatureFlag {
-  traceJsonRpc = 'traceJsonRpc',
-  permit2 = 'permit2',
-  fiatOnRampButtonOnSwap = 'fiat_on_ramp_button_on_swap_page',
-  detailsV2 = 'details_v2',
-  uraEnabled = 'ura_enabled',
-}

src/featureFlags/index.tsx

 import { atomWithStorage, useAtomValue, useUpdateAtom } from 'jotai/utils'
 import { createContext, ReactNode, useCallback, useContext } from 'react'
 import { useGate } from 'statsig-react'
-export { FeatureFlag } from './flags/featureFlags'
+
+/**
+ * The value here must match the value in the statsig dashboard, if you plan to use statsig.
+ */
+export enum FeatureFlag {
+  traceJsonRpc = 'traceJsonRpc',
+  permit2 = 'permit2',
+  fiatOnRampButtonOnSwap = 'fiat_on_ramp_button_on_swap_page',
+  detailsV2 = 'details_v2',
+  uraEnabled = 'ura_enabled',
+  debounceSwapQuote = 'debounce_swap_quote',
+}
 
 interface FeatureFlagsContextType {
   isLoaded: boolean

src/hooks/useBestTrade.ts

 import { Currency, CurrencyAmount, TradeType } from '@uniswap/sdk-core'
 import { useWeb3React } from '@web3-react/core'
 import { WRAPPED_NATIVE_CURRENCY } from 'constants/tokens'
+import { DebounceSwapQuoteVariant, useDebounceSwapQuoteFlag } from 'featureFlags/flags/debounceSwapQuote'
 import { useMemo } from 'react'
 import { InterfaceTrade, TradeState } from 'state/routing/types'
 import { useRoutingAPITrade } from 'state/routing/useRoutingAPITrade'
@@ -14,6 +15,9 @@ import useIsWindowVisible from './useIsWindowVisible'
 // Prevents excessive quote requests between keystrokes.
 const DEBOUNCE_TIME = 350
 
+// Temporary until we remove the feature flag.
+const DEBOUNCE_TIME_INCREASED = 650
+
 /**
  * Returns the best v2+v3 trade for a desired swap.
  * @param tradeType whether the swap is an exact in/out
@@ -34,7 +38,7 @@ export function useBestTrade(
 
   const [debouncedAmount, debouncedOtherCurrency] = useDebounce(
     useMemo(() => [amountSpecified, otherCurrency], [amountSpecified, otherCurrency]),
-    DEBOUNCE_TIME
+    useDebounceSwapQuoteFlag() === DebounceSwapQuoteVariant.Enabled ? DEBOUNCE_TIME_INCREASED : DEBOUNCE_TIME
   )
 
   const isAWrapTransaction = useMemo(() => {