[MM-62898] Reset filter when changing team (#8564)

* refactor: Improve search team change handling and filter removal

* fix: revert package.resolved

* add test file

* extract regex and fix formatting of useCallback

* improve tests

* fix style

app/screens/home/search/search.test.tsx

@@ -0,0 +1,168 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {fireEvent, waitFor} from '@testing-library/react-native';
+import React from 'react';
+
+import {addSearchToTeamSearchHistory} from '@actions/local/team';
+import {searchPosts, searchFiles} from '@actions/remote/search';
+import {bottomSheet} from '@screens/navigation';
+import {renderWithEverything} from '@test/intl-test-helper';
+import TestHelper from '@test/test_helper';
+
+import SearchScreen from './search';
+
+import type {TeamModel} from '@database/models/server';
+import type {Database} from '@nozbe/watermelondb';
+
+// Some subcomponents require react-native-camera-roll, which is not available in the test environment
+jest.mock('@react-native-camera-roll/camera-roll', () => ({}));
+
+jest.mock('@react-navigation/native', () => ({
+    ...jest.requireActual('@react-navigation/native'),
+    useNavigation: () => ({
+        getState: () => ({
+            index: 0,
+            routes: [{params: {searchTerm: ''}}],
+        }),
+    }),
+    useIsFocused: () => true,
+}));
+
+jest.mock('@actions/local/post', () => ({
+    getPosts: jest.fn().mockResolvedValue([]),
+}));
+
+jest.mock('@actions/local/team', () => ({
+    addSearchToTeamSearchHistory: jest.fn(),
+}));
+
+jest.mock('@actions/remote/search', () => ({
+    searchPosts: jest.fn().mockResolvedValue({order: [], matches: {}}),
+    searchFiles: jest.fn().mockResolvedValue({files: [], channels: []}),
+}));
+
+jest.mock('@mattermost/hardware-keyboard', () => ({
+    useHardwareKeyboardEvents: jest.fn(),
+}));
+
+jest.mock('@screens/navigation', () => ({
+    bottomSheet: jest.fn(),
+}));
+
+describe('SearchScreen', () => {
+    const baseProps = {
+        teamId: 'team1',
+        teams: [
+            {id: 'team1', displayName: 'Team 1'},
+            {id: 'team2', displayName: 'Team 2'},
+        ] as TeamModel[],
+        crossTeamSearchEnabled: true,
+    };
+
+    let database: Database;
+    beforeAll(async () => {
+        const server = await TestHelper.setupServerDatabase();
+        database = server.database;
+    });
+
+    beforeEach(() => {
+        jest.clearAllMocks();
+    });
+
+    it('renders search screen correctly', () => {
+        const {getByTestId, getByText, getByPlaceholderText} = renderWithEverything(
+            <SearchScreen {...baseProps}/>,
+            {database},
+        );
+        expect(getByTestId('search_messages.screen')).toBeTruthy();
+
+        // The page title
+        expect(getByText('Search')).toBeTruthy();
+
+        // The search input with the expected placeholder
+        expect(getByPlaceholderText('Search messages & files')).toBeTruthy();
+    });
+
+    it('handles search input changes', () => {
+        const {getByTestId} = renderWithEverything(
+            <SearchScreen {...baseProps}/>,
+            {database},
+        );
+
+        const searchInput = getByTestId('navigation.header.search_bar.search.input');
+        fireEvent.changeText(searchInput, 'test search');
+        expect(searchInput.props.value).toBe('test search');
+    });
+
+    it('performs search when submitting', async () => {
+        const {getByTestId} = renderWithEverything(
+            <SearchScreen {...baseProps}/>,
+            {database},
+        );
+
+        const searchInput = getByTestId('navigation.header.search_bar.search.input');
+        fireEvent.changeText(searchInput, 'test search');
+        fireEvent(searchInput, 'submitEditing');
+
+        await waitFor(() => {
+            expect(searchPosts).toHaveBeenCalledWith(
+                expect.any(String),
+                'team1',
+                expect.objectContaining({terms: 'test search'}),
+            );
+            expect(searchFiles).toHaveBeenCalledWith(
+                expect.any(String),
+                'team1',
+                expect.objectContaining({terms: 'test search'}),
+            );
+        });
+    });
+
+    it('handles team changes', async () => {
+        const {getByTestId} = renderWithEverything(
+            <SearchScreen {...baseProps}/>,
+            {database},
+        );
+
+        const teamPicker = getByTestId('team_picker.button');
+        fireEvent.press(teamPicker);
+
+        expect(teamPicker).toBeTruthy();
+        expect(bottomSheet).toHaveBeenCalled();
+    });
+
+    it('clears search when clear button is pressed', async () => {
+        const {getByTestId} = renderWithEverything(
+            <SearchScreen {...baseProps}/>,
+            {database},
+        );
+
+        const searchInput = getByTestId('navigation.header.search_bar.search.input');
+        fireEvent.changeText(searchInput, 'test search');
+
+        const clearButton = getByTestId('navigation.header.search_bar.search.clear.button');
+        fireEvent.press(clearButton);
+
+        expect(searchInput.props.value).toBe('');
+    });
+
+    it('adds search to team history when searching in a specific team', async () => {
+        const {getByTestId} = renderWithEverything(
+            <SearchScreen {...baseProps}/>,
+            {database},
+        );
+
+        const searchInput = getByTestId('navigation.header.search_bar.search.input');
+        fireEvent.changeText(searchInput, 'test search');
+        fireEvent(searchInput, 'submitEditing');
+
+        await waitFor(() => {
+            expect(addSearchToTeamSearchHistory).toHaveBeenCalledWith(
+                expect.any(String),
+                'team1',
+                'test search',
+            );
+        });
+    });
+});

app/screens/home/search/search.tsx

@@ -79,6 +79,8 @@ const getSearchParams = (terms: string, filterValue?: FileFilter) => {
 
 const searchScreenIndex = 1;
 
+const CHANNEL_AND_USER_FILTERS_REGEX = /(?:from|channel|in):\s?[^\s\n]+/gi;
+
 const SearchScreen = ({teamId, teams, crossTeamSearchEnabled}: Props) => {
     const nav = useNavigation();
     const isFocused = useIsFocused();
@@ -238,9 +240,20 @@ const SearchScreen = ({teamId, teams, crossTeamSearchEnabled}: Props) => {
         setResultsLoading(false);
     }, [lastSearchedValue, searchTeamId, serverUrl]);
 
+    const removeChannelAndUserFiltersFromString = (str: string) => {
+        return str.replace(CHANNEL_AND_USER_FILTERS_REGEX, '').trim();
+    };
+
+    const updateSearchTeamId = useCallback((newTeamId: string) => {
+        setSearchTeamId(newTeamId);
+        setSearchValue(removeChannelAndUserFiltersFromString(searchValue));
+    }, [searchValue]);
+
     const handleResultsTeamChange = useCallback((newTeamId: string) => {
         setSearchTeamId(newTeamId);
-        handleSearch(newTeamId, lastSearchedValue);
+        const cleanedSearchValue = removeChannelAndUserFiltersFromString(lastSearchedValue);
+        setSearchValue(cleanedSearchValue);
+        handleSearch(newTeamId, cleanedSearchValue);
     }, [lastSearchedValue, handleSearch]);
 
     const initialContainerStyle: AnimatedStyle<ViewStyle> = useMemo(() => {
@@ -265,7 +278,7 @@ const SearchScreen = ({teamId, teams, crossTeamSearchEnabled}: Props) => {
                 setRecentValue={handleRecentSearch}
                 searchRef={searchRef}
                 setSearchValue={handleModifierTextChange}
-                setTeamId={setSearchTeamId}
+                setTeamId={updateSearchTeamId}
                 teamId={searchTeamId}
                 teams={teams}
             />