[Feat/LIVE-9344]: Integrate feature_ptx_swap feature flag (#4843)

* feat: add feature flag

* feat: add helper hook

* feat: export hook from index

* feat: implement use of feature flag

* fix: use currency from not currency to

* chore: add changeset

.changeset/friendly-cycles-watch.md

@@ -0,0 +1,7 @@
+---
+"@ledgerhq/types-live": patch
+"ledger-live-desktop": patch
+"@ledgerhq/live-common": patch
+---
+
+Add feature_ptx_swap_live_app feature flag and logic

apps/ledger-live-desktop/src/renderer/screens/exchange/Swap2/Form/index.tsx

@@ -1,4 +1,8 @@
-import { useSwapTransaction, usePageState } from "@ledgerhq/live-common/exchange/swap/hooks/index";
+import {
+  useSwapTransaction,
+  usePageState,
+  useIsSwapLiveApp,
+} from "@ledgerhq/live-common/exchange/swap/hooks/index";
 import {
   getCustomFeesPerFamily,
   convertToNonAtomicUnit,
@@ -89,6 +93,10 @@ const SwapForm = () => {
     timeoutErrorMessage: t("swap2.form.timeout.message"),
   });
 
+  const isSwapLiveAppEnabled = useIsSwapLiveApp({
+    currencyFrom: swapTransaction.swap.from.currency,
+  });
+
   // @TODO: Try to check if we can directly have the right state from `useSwapTransaction`
   // Used to set the fake transaction recipient
   // As of today, we need to call setFromAccount to trigger an updateTransaction
@@ -262,8 +270,7 @@ const SwapForm = () => {
         },
       });
     } else {
-      const swapWebApp = !!process.env.SWAP_WEB_APP;
-      if (swapWebApp) {
+      if (isSwapLiveAppEnabled) {
         swapWebAppRedirection();
       } else {
         setDrawer(

libs/ledger-live-common/src/exchange/swap/hooks/index.ts

@@ -8,3 +8,4 @@ export * from "./useToState";
 export * from "./usePageState";
 export * from "./v5";
 export * from "./useSwapableAccounts";
+export * from "./useIsSwapLiveApp";

libs/ledger-live-common/src/exchange/swap/hooks/useIsSwapLiveApp.test.ts

@@ -0,0 +1,80 @@
+import { renderHook } from "@testing-library/react-hooks";
+import { useFeature } from "../../../featureFlags";
+import { useIsSwapLiveApp } from "./useIsSwapLiveApp";
+import { cryptocurrenciesById } from "@ledgerhq/cryptoassets/currencies";
+
+// Mock dependencies.
+jest.mock("../../../featureFlags");
+
+const useMockFeature = useFeature as jest.Mock;
+
+const bitcoin = cryptocurrenciesById["bitcoin"];
+
+describe("useIsSwapLiveApp hook", () => {
+  afterEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it("returns the enabled flag when currencyFrom is not defined", () => {
+    useMockFeature.mockReturnValue({ enabled: true });
+
+    const { result } = renderHook(() => useIsSwapLiveApp({ currencyFrom: undefined }));
+
+    expect(result.current).toBe(true);
+  });
+
+  it("returns the enabled flag when families and currencies are not defined", () => {
+    useMockFeature.mockReturnValue({
+      enabled: true,
+      params: { families: undefined, currencies: undefined },
+    });
+
+    const { result } = renderHook(() => useIsSwapLiveApp({ currencyFrom: bitcoin }));
+
+    expect(result.current).toBe(true);
+  });
+
+  it("returns true when currencyFrom family is in families array and feature is enabled", () => {
+    useMockFeature.mockReturnValue({
+      enabled: true,
+      params: { families: ["bitcoin"], currencies: [] },
+    });
+
+    const { result } = renderHook(() => useIsSwapLiveApp({ currencyFrom: bitcoin }));
+
+    expect(result.current).toBe(true);
+  });
+
+  it("returns true when currencyFrom is in currencies array and feature is enabled", () => {
+    useMockFeature.mockReturnValue({
+      enabled: true,
+      params: { families: [], currencies: ["bitcoin"] },
+    });
+
+    const { result } = renderHook(() => useIsSwapLiveApp({ currencyFrom: bitcoin }));
+
+    expect(result.current).toBe(true);
+  });
+
+  it("returns false when currencyFrom family is not in families, currencyFrom is not in currencies, and feature is disabled", () => {
+    useMockFeature.mockReturnValue({
+      enabled: false,
+      params: { families: ["ethereum"], currencies: ["ethereum"] },
+    });
+
+    const { result } = renderHook(() => useIsSwapLiveApp({ currencyFrom: bitcoin }));
+
+    expect(result.current).toBe(false);
+  });
+
+  it("returns enabled flag if both families and currencies are empty arrays", () => {
+    useMockFeature.mockReturnValue({
+      enabled: true,
+      params: { families: [], currencies: [] },
+    });
+
+    const { result } = renderHook(() => useIsSwapLiveApp({ currencyFrom: bitcoin }));
+
+    expect(result.current).toBe(true);
+  });
+});

libs/ledger-live-common/src/exchange/swap/hooks/useIsSwapLiveApp.ts

@@ -0,0 +1,25 @@
+import { CryptoOrTokenCurrency } from "@ledgerhq/types-cryptoassets";
+import { useFeature } from "../../../featureFlags";
+import { isCryptoCurrency } from "../../../currencies";
+
+type Props = {
+  currencyFrom?: CryptoOrTokenCurrency;
+};
+
+export function useIsSwapLiveApp({ currencyFrom }: Props) {
+  const ptxSwapLiveApp = useFeature("ptxSwapLiveApp");
+  const { families, currencies } = ptxSwapLiveApp.params || {};
+
+  if (!currencyFrom || (!families && !currencies)) {
+    return ptxSwapLiveApp.enabled;
+  }
+
+  const familyOfCurrencyFrom = isCryptoCurrency(currencyFrom)
+    ? currencyFrom.family
+    : currencyFrom.parentCurrency.family;
+
+  const familyIsEnabled = families?.length ? families.includes(familyOfCurrencyFrom) : true;
+  const currencyIsEnabled = currencies?.length ? currencies.includes(currencyFrom.id) : true;
+
+  return ptxSwapLiveApp.enabled && (familyIsEnabled || currencyIsEnabled);
+}

libs/ledger-live-common/src/featureFlags/defaultFeatures.ts

@@ -373,4 +373,8 @@ export const DEFAULT_FEATURES: Features = {
   fetchAdditionalCoins: {
     enabled: false,
   },
+
+  ptxSwapLiveApp: {
+    enabled: false,
+  },
 };

libs/ledgerjs/packages/types-live/src/feature.ts

@@ -177,6 +177,7 @@ export type Features = CurrencyFeatures & {
   cexDepositEntryPointsDesktop: Feature_CexDepositEntryPointsDesktop;
   cexDepositEntryPointsMobile: Feature_CexDepositEntryPointsMobile;
   fetchAdditionalCoins: Feature_FetchAdditionalCoins;
+  ptxSwapLiveApp: Feature_PtxSwapLiveApp;
 };
 
 /**
@@ -437,6 +438,11 @@ export type Feature_CexDepositEntryPointsMobile = Feature<{
   };
 }>;
 
+export type Feature_PtxSwapLiveApp = Feature<{
+  currencies?: Array<string>;
+  families?: Array<string>;
+}>;
+
 export type Feature_LlmNewFirmwareUpdateUx = DefaultFeature;
 export type Feature_CounterValue = DefaultFeature;
 export type Feature_MockFeature = DefaultFeature;