Move message.getPropsForBubble and friends to selectors

ts/state/ducks/accounts.ts

@@ -0,0 +1,99 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { ThunkAction } from 'redux-thunk';
+import { StateType as RootStateType } from '../reducer';
+
+import { NoopActionType } from './noop';
+
+// State
+
+export type AccountsStateType = {
+  accounts: Record<string, boolean>;
+};
+
+// Actions
+
+type AccountUpdateActionType = {
+  type: 'accounts/UPDATE';
+  payload: {
+    identifier: string;
+    hasAccount: boolean;
+  };
+};
+
+export type AccountsActionType = AccountUpdateActionType;
+
+// Action Creators
+
+export const actions = {
+  checkForAccount,
+};
+
+function checkForAccount(
+  identifier: string
+): ThunkAction<
+  void,
+  RootStateType,
+  unknown,
+  AccountUpdateActionType | NoopActionType
+> {
+  return async dispatch => {
+    if (!window.textsecure.messaging) {
+      dispatch({
+        type: 'NOOP',
+        payload: null,
+      });
+      return;
+    }
+
+    let hasAccount = false;
+
+    try {
+      await window.textsecure.messaging.getProfile(identifier);
+      hasAccount = true;
+    } catch (_error) {
+      // Doing nothing with this failed fetch
+    }
+
+    dispatch({
+      type: 'accounts/UPDATE',
+      payload: {
+        identifier,
+        hasAccount,
+      },
+    });
+  };
+}
+
+// Reducer
+
+export function getEmptyState(): AccountsStateType {
+  return {
+    accounts: {},
+  };
+}
+
+export function reducer(
+  state: Readonly<AccountsStateType> = getEmptyState(),
+  action: Readonly<AccountsActionType>
+): AccountsStateType {
+  if (!state) {
+    return getEmptyState();
+  }
+
+  if (action.type === 'accounts/UPDATE') {
+    const { payload } = action;
+    const { identifier, hasAccount } = payload;
+
+    return {
+      ...state,
+      accounts: {
+        ...state.accounts,
+        [identifier]: hasAccount,
+      },
+    };
+  }
+
+  return state;
+}