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diff --git a/packages/taler-wallet-webextension/src/wallet/ExchangeSelection/index.ts b/packages/taler-wallet-webextension/src/wallet/ExchangeSelection/index.ts
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index 000000000..d711f1ecc
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+++ b/packages/taler-wallet-webextension/src/wallet/ExchangeSelection/index.ts
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+/*
+ This file is part of GNU Taler
+ (C) 2022 Taler Systems S.A.
+
+ GNU Taler is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+import {
+  DenomOperationMap,
+  ExchangeFullDetails,
+  ExchangeListItem,
+  FeeDescriptionPair,
+} from "@gnu-taler/taler-util";
+import { ErrorAlertView } from "../../components/CurrentAlerts.js";
+import { Loading } from "../../components/Loading.js";
+import { ErrorAlert } from "../../context/alert.js";
+import { HookError } from "../../hooks/useAsyncAsHook.js";
+import { State as SelectExchangeState } from "../../hooks/useSelectedExchange.js";
+import { ButtonHandler, SelectFieldHandler } from "../../mui/handlers.js";
+import { compose, StateViewMap } from "../../utils/index.js";
+import { useComponentState } from "./state.js";
+import {
+  ComparingView,
+  NoExchangesView,
+  PrivacyContentView,
+  ReadyView,
+  TosContentView,
+} from "./views.js";
+
+export interface Props {
+  list: ExchangeListItem[];
+  initialValue: string;
+  onCancel: () => Promise<void>;
+  onSelection: (exchange: string) => Promise<void>;
+}
+
+export type State =
+  | State.Loading
+  | State.LoadingUriError
+  | State.Ready
+  | State.Comparing
+  | State.ShowingTos
+  | State.ShowingPrivacy
+  | SelectExchangeState.NoExchangeFound;
+
+export namespace State {
+  export interface Loading {
+    status: "loading";
+    error: undefined;
+  }
+
+  export interface LoadingUriError {
+    status: "error";
+    error: ErrorAlert;
+  }
+
+  export interface BaseInfo {
+    exchanges: SelectFieldHandler;
+    selected: ExchangeFullDetails;
+    error: undefined;
+    onShowTerms: ButtonHandler;
+    onShowPrivacy: ButtonHandler;
+  }
+
+  export interface Ready extends BaseInfo {
+    status: "ready";
+    onClose: ButtonHandler;
+  }
+
+  export interface Comparing extends BaseInfo {
+    status: "comparing";
+    coinOperationTimeline: DenomOperationMap<FeeDescriptionPair[]>;
+    wireFeeTimeline: Record<string, FeeDescriptionPair[]>;
+    globalFeeTimeline: FeeDescriptionPair[];
+    missingWireTYpe: string[];
+    newWireType: string[];
+    onReset: ButtonHandler;
+    onSelect: ButtonHandler;
+  }
+  export interface ShowingTos {
+    status: "showing-tos";
+    exchangeUrl: string;
+    onClose: ButtonHandler;
+  }
+  export interface ShowingPrivacy {
+    status: "showing-privacy";
+    exchangeUrl: string;
+    onClose: ButtonHandler;
+  }
+}
+
+const viewMapping: StateViewMap<State> = {
+  loading: Loading,
+  error: ErrorAlertView,
+  comparing: ComparingView,
+  "no-exchange-found": NoExchangesView,
+  "showing-tos": TosContentView,
+  "showing-privacy": PrivacyContentView,
+  ready: ReadyView,
+};
+
+export const ExchangeSelectionPage = compose(
+  "ExchangeSelectionPage",
+  (p: Props) => useComponentState(p),
+  viewMapping,
+);