Add "Deselect and validate" button in lock error modal

- Enhances the `LockError` modal by introducing a "Deselect and Continue" button. The button is displayed when a `CannotValidateMappedTask` task lock error occurs. The "Close" button is shown with the primary variant when only a single task is selected.
- Conditionally displayed the buttons based on the user's selected tasks and mapping status.
- Separated the action buttons into a new component named `LockErrorButtons`.
- Moved the logic for handling task deselection and validation into the `LockErrorButtons` component.
- Updated the existing test cases to reflect the new changes made in the `LockErrorButtons` component.

frontend/src/components/taskSelection/footer.js

@@ -15,7 +15,14 @@ import { Imagery } from './imagery';
 import { MappingTypes } from '../mappingTypes';
 import { LockedTaskModalContent } from './lockedTasks';
 
-const TaskSelectionFooter = ({ defaultUserEditor, project, tasks, taskAction, selectedTasks }) => {
+const TaskSelectionFooter = ({
+  defaultUserEditor,
+  project,
+  tasks,
+  taskAction,
+  selectedTasks,
+  setSelectedTasks,
+}) => {
   const navigate = useNavigate();
   const token = useSelector((state) => state.auth.token);
   const locale = useSelector((state) => state.preferences.locale);
@@ -178,6 +185,9 @@ const TaskSelectionFooter = ({ defaultUserEditor, project, tasks, taskAction, se
               error={lockError}
               close={close}
               lockTasks={lockTasks}
+              tasks={tasks}
+              selectedTasks={selectedTasks}
+              setSelectedTasks={setSelectedTasks}
             />
           )}
         </Popup>

frontend/src/components/taskSelection/index.js

@@ -408,6 +408,7 @@ export function TaskSelection({ project, type, loading }: Object) {
               tasks={tasks}
               taskAction={taskAction}
               selectedTasks={curatedSelectedTasks}
+              setSelectedTasks={setSelectedTasks}
             />
           </Suspense>
         </ReactPlaceholder>

frontend/src/components/taskSelection/lockedTasks.js

@@ -118,7 +118,9 @@ export const LicenseError = ({ id, close, lockTasks }) => {
   );
 };
 
-export function LockError({ error, close }) {
+export function LockError({ error, close, tasks, selectedTasks, setSelectedTasks, lockTasks }) {
+  const shouldShowDeselectButton = error === 'CannotValidateMappedTask' && selectedTasks.length > 1;
+
   return (
     <>
       <h3 className="barlow-condensed f3 fw6 mv0">
@@ -135,16 +137,77 @@ export function LockError({ error, close }) {
           <FormattedMessage {...messages.lockErrorDescription} />
         )}
       </div>
-      <div className="w-100 pt3">
-        <Button onClick={() => close()} className="bg-red white mr2">
-          <FormattedMessage {...messages.closeModal} />
-        </Button>
-      </div>
+      <LockErrorButtons
+        close={close}
+        shouldShowDeselectButton={shouldShowDeselectButton}
+        tasks={tasks}
+        selectedTasks={selectedTasks}
+        setSelectedTasks={setSelectedTasks}
+        lockTasks={lockTasks}
+      />
     </>
   );
 }
 
-export function LockedTaskModalContent({ project, error, close, lockTasks }: Object) {
+function LockErrorButtons({
+  close,
+  shouldShowDeselectButton,
+  lockTasks,
+  tasks,
+  selectedTasks,
+  setSelectedTasks,
+}) {
+  const user = useSelector((state) => state.auth.userDetails);
+  const [hasTasksChanged, setHasTasksChanged] = useState(false);
+
+  const handleDeselectAndValidate = () => {
+    const userMappedTaskIds = tasks.features
+      .filter((feature) => feature.properties.mappedBy === user.id)
+      .map((feature) => feature.properties.taskId);
+
+    const remainingSelectedTasks = selectedTasks.filter(
+      (selectedTask) => !userMappedTaskIds.includes(selectedTask),
+    );
+    setSelectedTasks(remainingSelectedTasks);
+    // Set the flag to indicate that tasks have changed.
+    // Note: The introduction of useEffect pattern might benefit
+    // from future optimization.
+    setHasTasksChanged(true);
+  };
+
+  useEffect(() => {
+    if (hasTasksChanged) {
+      lockTasks();
+      setHasTasksChanged(false);
+    }
+  }, [hasTasksChanged, lockTasks]);
+
+  return (
+    <div className="w-100 pt3 flex justify-end">
+      <Button
+        onClick={close}
+        className={`mr2 ${shouldShowDeselectButton ? 'bg-transparent black' : 'bg-red white'}`}
+      >
+        <FormattedMessage {...messages.closeModal} />
+      </Button>
+      {shouldShowDeselectButton && (
+        <Button onClick={handleDeselectAndValidate} className="bg-red white mr2">
+          <FormattedMessage {...messages.deselectAndValidate} />
+        </Button>
+      )}
+    </div>
+  );
+}
+
+export function LockedTaskModalContent({
+  project,
+  error,
+  close,
+  lockTasks,
+  tasks,
+  selectedTasks,
+  setSelectedTasks,
+}: Object) {
   const lockedTasks = useGetLockedTasks();
   const action = lockedTasks.status === 'LOCKED_FOR_VALIDATION' ? 'validate' : 'map';
   const licenseError = error === 'UserLicenseError' && !lockedTasks.project;
@@ -155,7 +218,14 @@ export function LockedTaskModalContent({ project, error, close, lockTasks }: Obj
       {/* Other error happened */}
       {error === 'JOSM' && <LockError error={error} close={close} />}
       {!lockedTasks.project && !licenseError && error !== 'JOSM' && (
-        <LockError error={error} close={close} />
+        <LockError
+          error={error}
+          close={close}
+          lockTasks={lockTasks}
+          tasks={tasks}
+          selectedTasks={selectedTasks}
+          setSelectedTasks={setSelectedTasks}
+        />
       )}
       {/* User has tasks locked on another project */}
       {lockedTasks.project && lockedTasks.project !== project.projectId && error !== 'JOSM' && (

frontend/src/components/taskSelection/messages.js

@@ -28,6 +28,10 @@ export default defineMessages({
     id: 'project.tasks.unsaved_map_changes.actions.close_modal',
     defaultMessage: 'Close',
   },
+  deselectAndValidate: {
+    id: 'project.tasks.validation.cannot_validate_mapped_tasks.deselect_and_validate',
+    defaultMessage: 'Deselect and validate',
+  },
   cantValidateMappedTask: {
     id: 'project.tasks.select.cantValidateMappedTask',
     defaultMessage: 'This task was mapped by you',

frontend/src/components/taskSelection/tests/lockedTasks.test.js

@@ -3,7 +3,7 @@ import React from 'react';
 import TestRenderer from 'react-test-renderer';
 import { FormattedMessage } from 'react-intl';
 import { MemoryRouter } from 'react-router-dom';
-import { render, screen, waitFor } from '@testing-library/react';
+import { act, render, screen, waitFor } from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
 
 import {
@@ -171,6 +171,69 @@ describe('License Modal', () => {
   });
 });
 
+describe('LockError for CannotValidateMappedTask', () => {
+  it('should display the Deselect and continue button', () => {
+    render(
+      <ReduxIntlProviders>
+        <LockError error="CannotValidateMappedTask" selectedTasks={[1, 2, 3]} />
+      </ReduxIntlProviders>,
+    );
+    expect(screen.getByRole('button', { name: 'Deselect and validate' })).toBeInTheDocument();
+  });
+
+  it('should not display the Deselect and continue button if only one task is selected for validation', () => {
+    render(
+      <ReduxIntlProviders>
+        <LockError error="CannotValidateMappedTask" selectedTasks={[1]} />
+      </ReduxIntlProviders>,
+    );
+    expect(screen.queryByRole('button', { name: 'Deselect and validate' })).not.toBeInTheDocument();
+  });
+
+  it('should lock tasks after deselecting the tasks that the user mapped from the list of selected tasks', async () => {
+    const lockTasksFnMock = jest.fn();
+    const setSelectedTasksFnMock = jest.fn();
+    const dummyTasks = {
+      features: [
+        {
+          properties: {
+            taskId: 1,
+            mappedBy: 123, // Same value as the logged in user's username
+          },
+        },
+        {
+          properties: {
+            taskId: 2,
+            mappedBy: 321,
+          },
+        },
+      ],
+    };
+
+    act(() => {
+      store.dispatch({
+        type: 'SET_USER_DETAILS',
+        userDetails: { id: 123 },
+      });
+    });
+
+    render(
+      <ReduxIntlProviders>
+        <LockError
+          error="CannotValidateMappedTask"
+          selectedTasks={[1, 2]}
+          lockTasks={lockTasksFnMock}
+          setSelectedTasks={setSelectedTasksFnMock}
+          tasks={dummyTasks}
+        />
+      </ReduxIntlProviders>,
+    );
+    const user = userEvent.setup();
+    await user.click(screen.queryByRole('button', { name: 'Deselect and validate' }));
+    expect(lockTasksFnMock).toHaveBeenCalledTimes(1);
+  });
+});
+
 test('SameProjectLock should display relevant message when user has multiple tasks locked', async () => {
   const lockedTasksSample = {
     project: 5871,

frontend/src/locales/en.json

@@ -623,6 +623,7 @@
   "project.tasks.unsaved_map_changes.reload_editor": "Save or undo it to be able to switch editors",
   "project.tasks.unsaved_map_changes.tooltip": "You have unsaved edits. Save or undo them to submit this task.",
   "project.tasks.unsaved_map_changes.actions.close_modal": "Close",
+  "project.tasks.validation.cannot_validate_mapped_tasks.deselect_and_validate": "Deselect and validate",
   "project.tasks.select.cantValidateMappedTask": "This task was mapped by you",
   "project.tasks.no_mapped_tasks_selected": "No mapped tasks selected",
   "project.tasks.no_mapped_tasks_selected.description": "It was not possible to lock the selected tasks, as none of them are on the mapped status.",