feat: add event rows to Show Page Calendar tab (#4319)

* feat: add event rows to Show Page Calendar tab

Closes #4287

* refactor: use time as events group key instead of ISO string for easier sorting

* feat: implement data model changes

* refactor: improve sorting

packages/twenty-front/src/modules/activities/calendar/components/Calendar.tsx

@@ -0,0 +1,47 @@
+import styled from '@emotion/styled';
+import { startOfMonth } from 'date-fns';
+
+import { CalendarMonthCard } from '@/activities/calendar/components/CalendarMonthCard';
+import { sortCalendarEventsDesc } from '@/activities/calendar/utils/sortCalendarEvents';
+import { mockedCalendarEvents } from '~/testing/mock-data/calendar';
+import { groupArrayItemsBy } from '~/utils/array/groupArrayItemsBy';
+import { sortDesc } from '~/utils/sort';
+
+const StyledContainer = styled.div`
+  box-sizing: border-box;
+  display: flex;
+  flex-direction: column;
+  gap: ${({ theme }) => theme.spacing(8)};
+  padding: ${({ theme }) => theme.spacing(6)};
+  width: 100%;
+`;
+
+export const Calendar = () => {
+  const sortedCalendarEvents = [...mockedCalendarEvents].sort(
+    sortCalendarEventsDesc,
+  );
+  const calendarEventsByMonthTime = groupArrayItemsBy(
+    sortedCalendarEvents,
+    ({ startsAt }) => startOfMonth(startsAt).getTime(),
+  );
+  const sortedMonthTimes = Object.keys(calendarEventsByMonthTime)
+    .map(Number)
+    .sort(sortDesc);
+
+  return (
+    <StyledContainer>
+      {sortedMonthTimes.map((monthTime) => {
+        const monthCalendarEvents = calendarEventsByMonthTime[monthTime];
+
+        return (
+          !!monthCalendarEvents?.length && (
+            <CalendarMonthCard
+              key={monthTime}
+              calendarEvents={monthCalendarEvents}
+            />
+          )
+        );
+      })}
+    </StyledContainer>
+  );
+};

packages/twenty-front/src/modules/activities/calendar/components/CalendarDayCardContent.tsx

@@ -0,0 +1,79 @@
+import { css } from '@emotion/react';
+import styled from '@emotion/styled';
+import { endOfDay, format, isPast } from 'date-fns';
+
+import { CalendarEventRow } from '@/activities/calendar/components/CalendarEventRow';
+import { CalendarEvent } from '@/activities/calendar/types/CalendarEvent';
+import { CardContent } from '@/ui/layout/card/components/CardContent';
+
+type CalendarDayCardContentProps = {
+  calendarEvents: CalendarEvent[];
+  divider?: boolean;
+};
+
+const StyledCardContent = styled(CardContent)<{ active: boolean }>`
+  align-items: flex-start;
+  border-color: ${({ theme }) => theme.border.color.light};
+  display: flex;
+  flex-direction: row;
+  gap: ${({ theme }) => theme.spacing(3)};
+  padding: ${({ theme }) => theme.spacing(2, 3)};
+
+  ${({ active }) =>
+    !active &&
+    css`
+      background-color: transparent;
+    `}
+`;
+
+const StyledDayContainer = styled.div`
+  text-align: center;
+  width: ${({ theme }) => theme.spacing(6)};
+`;
+
+const StyledWeekDay = styled.div`
+  color: ${({ theme }) => theme.font.color.tertiary};
+  font-size: ${({ theme }) => theme.font.size.xxs};
+  font-weight: ${({ theme }) => theme.font.weight.semiBold};
+`;
+
+const StyledDateDay = styled.div`
+  font-weight: ${({ theme }) => theme.font.weight.medium};
+`;
+
+const StyledEvents = styled.div`
+  align-items: stretch;
+  display: flex;
+  flex: 1 0 auto;
+  flex-direction: column;
+  gap: ${({ theme }) => theme.spacing(3)};
+`;
+
+const StyledEventRow = styled(CalendarEventRow)`
+  flex: 1 0 auto;
+`;
+
+export const CalendarDayCardContent = ({
+  calendarEvents,
+  divider,
+}: CalendarDayCardContentProps) => {
+  const endOfDayDate = endOfDay(calendarEvents[0].startsAt);
+  const isPastDay = isPast(endOfDayDate);
+
+  return (
+    <StyledCardContent active={!isPastDay} divider={divider}>
+      <StyledDayContainer>
+        <StyledWeekDay>{format(endOfDayDate, 'EE')}</StyledWeekDay>
+        <StyledDateDay>{format(endOfDayDate, 'dd')}</StyledDateDay>
+      </StyledDayContainer>
+      <StyledEvents>
+        {calendarEvents.map((calendarEvent) => (
+          <StyledEventRow
+            key={calendarEvent.id}
+            calendarEvent={calendarEvent}
+          />
+        ))}
+      </StyledEvents>
+    </StyledCardContent>
+  );
+};

packages/twenty-front/src/modules/activities/calendar/components/CalendarEventRow.tsx

@@ -0,0 +1,131 @@
+import { css, useTheme } from '@emotion/react';
+import styled from '@emotion/styled';
+import { endOfDay, format, isPast } from 'date-fns';
+
+import { CalendarEvent } from '@/activities/calendar/types/CalendarEvent';
+import { IconArrowRight, IconLock } from '@/ui/display/icon';
+import { Card } from '@/ui/layout/card/components/Card';
+import { CardContent } from '@/ui/layout/card/components/CardContent';
+
+type CalendarEventRowProps = {
+  calendarEvent: CalendarEvent;
+  className?: string;
+};
+
+const StyledContainer = styled.div`
+  align-items: center;
+  display: inline-flex;
+  gap: ${({ theme }) => theme.spacing(3)};
+  height: ${({ theme }) => theme.spacing(6)};
+`;
+
+const StyledAttendanceIndicator = styled.div<{ active?: boolean }>`
+  background-color: ${({ theme }) => theme.tag.background.gray};
+  height: 100%;
+  width: ${({ theme }) => theme.spacing(1)};
+
+  ${({ active, theme }) =>
+    active &&
+    css`
+      background-color: ${theme.tag.background.red};
+    `}
+`;
+
+const StyledLabels = styled.div`
+  align-items: center;
+  display: flex;
+  color: ${({ theme }) => theme.font.color.tertiary};
+  gap: ${({ theme }) => theme.spacing(2)};
+  flex: 1 0 auto;
+`;
+
+const StyledTime = styled.div`
+  align-items: center;
+  display: flex;
+  gap: ${({ theme }) => theme.spacing(1)};
+  width: ${({ theme }) => theme.spacing(26)};
+`;
+
+const StyledTitle = styled.div<{ active: boolean; canceled: boolean }>`
+  flex: 1 0 auto;
+
+  ${({ theme, active }) =>
+    active &&
+    css`
+      color: ${theme.font.color.primary};
+      font-weight: ${theme.font.weight.medium};
+    `}
+
+  ${({ canceled }) =>
+    canceled &&
+    css`
+      text-decoration: line-through;
+    `}
+`;
+
+const StyledVisibilityCard = styled(Card)<{ active: boolean }>`
+  color: ${({ active, theme }) =>
+    active ? theme.font.color.primary : theme.font.color.light};
+  border-color: ${({ theme }) => theme.border.color.light};
+  flex: 1 0 auto;
+`;
+
+const StyledVisibilityCardContent = styled(CardContent)`
+  align-items: center;
+  font-size: ${({ theme }) => theme.font.size.sm};
+  font-weight: ${({ theme }) => theme.font.weight.medium};
+  display: flex;
+  gap: ${({ theme }) => theme.spacing(1)};
+  padding: ${({ theme }) => theme.spacing(0, 1)};
+  height: ${({ theme }) => theme.spacing(6)};
+  background-color: ${({ theme }) => theme.background.transparent.lighter};
+`;
+
+export const CalendarEventRow = ({
+  calendarEvent,
+  className,
+}: CalendarEventRowProps) => {
+  const theme = useTheme();
+
+  const hasEventEnded = calendarEvent.endsAt
+    ? isPast(calendarEvent.endsAt)
+    : calendarEvent.isFullDay && isPast(endOfDay(calendarEvent.startsAt));
+
+  return (
+    <StyledContainer className={className}>
+      <StyledAttendanceIndicator />
+      <StyledLabels>
+        <StyledTime>
+          {calendarEvent.isFullDay ? (
+            'All Day'
+          ) : (
+            <>
+              {format(calendarEvent.startsAt, 'HH:mm')}
+              {!!calendarEvent.endsAt && (
+                <>
+                  <IconArrowRight size={theme.icon.size.sm} />
+                  {format(calendarEvent.endsAt, 'HH:mm')}
+                </>
+              )}
+            </>
+          )}
+        </StyledTime>
+        {calendarEvent.visibility === 'METADATA' ? (
+          <StyledVisibilityCard active={!hasEventEnded}>
+            <StyledVisibilityCardContent>
+              <IconLock size={theme.icon.size.sm} />
+              Not shared
+            </StyledVisibilityCardContent>
+          </StyledVisibilityCard>
+        ) : (
+          <StyledTitle
+            active={!hasEventEnded}
+            canceled={!!calendarEvent.isCanceled}
+          >
+            {calendarEvent.title}
+          </StyledTitle>
+        )}
+      </StyledLabels>
+    </StyledContainer>
+  );
+};

packages/twenty-front/src/modules/activities/calendar/components/CalendarMonthCard.tsx

@@ -0,0 +1,41 @@
+import { startOfDay } from 'date-fns';
+
+import { CalendarDayCardContent } from '@/activities/calendar/components/CalendarDayCardContent';
+import { CalendarEvent } from '@/activities/calendar/types/CalendarEvent';
+import { Card } from '@/ui/layout/card/components/Card';
+import { groupArrayItemsBy } from '~/utils/array/groupArrayItemsBy';
+import { sortDesc } from '~/utils/sort';
+
+type CalendarMonthCardProps = {
+  calendarEvents: CalendarEvent[];
+};
+
+export const CalendarMonthCard = ({
+  calendarEvents,
+}: CalendarMonthCardProps) => {
+  const calendarEventsByDayTime = groupArrayItemsBy(
+    calendarEvents,
+    ({ startsAt }) => startOfDay(startsAt).getTime(),
+  );
+  const sortedDayTimes = Object.keys(calendarEventsByDayTime)
+    .map(Number)
+    .sort(sortDesc);
+
+  return (
+    <Card fullWidth>
+      {sortedDayTimes.map((dayTime, index) => {
+        const dayCalendarEvents = calendarEventsByDayTime[dayTime];
+
+        return (
+          !!dayCalendarEvents?.length && (
+            <CalendarDayCardContent
+              key={dayTime}
+              calendarEvents={dayCalendarEvents}
+              divider={index < sortedDayTimes.length - 1}
+            />
+          )
+        );
+      })}
+    </Card>
+  );
+};

packages/twenty-front/src/modules/activities/calendar/components/__stories__/Calendar.stories.tsx

@@ -0,0 +1,18 @@
+import { Meta, StoryObj } from '@storybook/react';
+
+import { Calendar } from '@/activities/calendar/components/Calendar';
+import { ComponentDecorator } from '~/testing/decorators/ComponentDecorator';
+
+const meta: Meta<typeof Calendar> = {
+  title: 'Modules/Activities/Calendar/Calendar',
+  component: Calendar,
+  decorators: [ComponentDecorator],
+  parameters: {
+    container: { width: 728 },
+  },
+};
+
+export default meta;
+type Story = StoryObj<typeof Calendar>;
+
+export const Default: Story = {};

packages/twenty-front/src/modules/activities/calendar/types/CalendarEvent.ts

@@ -0,0 +1,10 @@
+// TODO: use backend CalendarEvent type when ready
+export type CalendarEvent = {
+  endsAt?: Date;
+  id: string;
+  isFullDay: boolean;
+  startsAt: Date;
+  isCanceled?: boolean;
+  title?: string;
+  visibility: 'METADATA' | 'SHARE_EVERYTHING';
+};

packages/twenty-front/src/modules/activities/calendar/utils/__tests__/sortCalendarEvents.test.ts

@@ -0,0 +1,285 @@
+import { addHours } from 'date-fns';
+
+import {
+  sortCalendarEventsAsc,
+  sortCalendarEventsDesc,
+} from '../sortCalendarEvents';
+
+const someDate = new Date(2000, 1, 1);
+const someDatePlusOneHour = addHours(someDate, 1);
+const someDatePlusTwoHours = addHours(someDate, 2);
+const someDatePlusThreeHours = addHours(someDate, 3);
+
+describe('sortCalendarEventsAsc', () => {
+  it('sorts non-intersecting events by ascending order', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+      endsAt: someDatePlusOneHour,
+    };
+    const eventB = {
+      startsAt: someDatePlusTwoHours,
+      endsAt: someDatePlusThreeHours,
+    };
+
+    // When
+    const result = sortCalendarEventsAsc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsAsc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(-1);
+    expect(invertedArgsResult).toBe(1);
+  });
+
+  it('sorts intersecting events by start date ascending order', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+      endsAt: someDatePlusTwoHours,
+    };
+    const eventB = {
+      startsAt: someDatePlusOneHour,
+      endsAt: someDatePlusThreeHours,
+    };
+
+    // When
+    const result = sortCalendarEventsAsc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsAsc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(-1);
+    expect(invertedArgsResult).toBe(1);
+  });
+
+  it('sorts events with same start date by end date ascending order', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+      endsAt: someDatePlusTwoHours,
+    };
+    const eventB = {
+      startsAt: someDate,
+      endsAt: someDatePlusThreeHours,
+    };
+
+    // When
+    const result = sortCalendarEventsAsc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsAsc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(-1);
+    expect(invertedArgsResult).toBe(1);
+  });
+
+  it('sorts events with same end date by start date ascending order', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+      endsAt: someDatePlusThreeHours,
+    };
+    const eventB = {
+      startsAt: someDatePlusOneHour,
+      endsAt: someDatePlusThreeHours,
+    };
+
+    // When
+    const result = sortCalendarEventsAsc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsAsc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(-1);
+    expect(invertedArgsResult).toBe(1);
+  });
+
+  it('sorts events without end date by start date ascending order', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+    };
+    const eventB = {
+      startsAt: someDatePlusOneHour,
+    };
+
+    // When
+    const result = sortCalendarEventsAsc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsAsc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(-1);
+    expect(invertedArgsResult).toBe(1);
+  });
+
+  it('returns 0 for events with same start date and no end date', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+    };
+    const eventB = {
+      startsAt: someDate,
+    };
+
+    // When
+    const result = sortCalendarEventsAsc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsAsc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(0);
+    expect(invertedArgsResult).toBe(0);
+  });
+
+  it('returns 0 for events with same start date if one of them has no end date', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+      endsAt: someDatePlusOneHour,
+    };
+    const eventB = {
+      startsAt: someDate,
+    };
+
+    // When
+    const result = sortCalendarEventsAsc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsAsc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(0);
+    expect(invertedArgsResult).toBe(0);
+  });
+});
+
+describe('sortCalendarEventsDesc', () => {
+  it('sorts non-intersecting events by descending order', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+      endsAt: someDatePlusOneHour,
+    };
+    const eventB = {
+      startsAt: someDatePlusTwoHours,
+      endsAt: someDatePlusThreeHours,
+    };
+
+    // When
+    const result = sortCalendarEventsDesc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsDesc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(1);
+    expect(invertedArgsResult).toBe(-1);
+  });
+
+  it('sorts intersecting events by start date descending order', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+      endsAt: someDatePlusTwoHours,
+    };
+    const eventB = {
+      startsAt: someDatePlusOneHour,
+      endsAt: someDatePlusThreeHours,
+    };
+
+    // When
+    const result = sortCalendarEventsDesc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsDesc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(1);
+    expect(invertedArgsResult).toBe(-1);
+  });
+
+  it('sorts events with same start date by end date descending order', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+      endsAt: someDatePlusTwoHours,
+    };
+    const eventB = {
+      startsAt: someDate,
+      endsAt: someDatePlusThreeHours,
+    };
+
+    // When
+    const result = sortCalendarEventsDesc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsDesc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(1);
+    expect(invertedArgsResult).toBe(-1);
+  });
+
+  it('sorts events with same end date by start date descending order', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+      endsAt: someDatePlusThreeHours,
+    };
+    const eventB = {
+      startsAt: someDatePlusOneHour,
+      endsAt: someDatePlusThreeHours,
+    };
+
+    // When
+    const result = sortCalendarEventsDesc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsDesc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(1);
+    expect(invertedArgsResult).toBe(-1);
+  });
+
+  it('sorts events without end date by start date descending order', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+    };
+    const eventB = {
+      startsAt: someDatePlusOneHour,
+    };
+
+    // When
+    const result = sortCalendarEventsDesc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsDesc(eventB, eventA);
+
+    // Then
+    expect(result).toBe(1);
+    expect(invertedArgsResult).toBe(-1);
+  });
+
+  it('returns 0 for events with same start date and no end date', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+    };
+    const eventB = {
+      startsAt: someDate,
+    };
+
+    // When
+    const result = sortCalendarEventsDesc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsDesc(eventB, eventA);
+
+    // Then
+    expect(result === 0).toBe(true);
+    expect(invertedArgsResult === 0).toBe(true);
+  });
+
+  it('returns 0 for events with same start date if one of them has no end date', () => {
+    // Given
+    const eventA = {
+      startsAt: someDate,
+      endsAt: someDatePlusOneHour,
+    };
+    const eventB = {
+      startsAt: someDate,
+    };
+
+    // When
+    const result = sortCalendarEventsDesc(eventA, eventB);
+    const invertedArgsResult = sortCalendarEventsDesc(eventB, eventA);
+
+    // Then
+    expect(result === 0).toBe(true);
+    expect(invertedArgsResult === 0).toBe(true);
+  });
+});

packages/twenty-front/src/modules/activities/calendar/utils/sortCalendarEvents.ts

@@ -0,0 +1,26 @@
+import { CalendarEvent } from '@/activities/calendar/types/CalendarEvent';
+import { sortAsc } from '~/utils/sort';
+
+export const sortCalendarEventsAsc = (
+  calendarEventA: Pick<CalendarEvent, 'startsAt' | 'endsAt'>,
+  calendarEventB: Pick<CalendarEvent, 'startsAt' | 'endsAt'>,
+) => {
+  const startsAtSort = sortAsc(
+    calendarEventA.startsAt.getTime(),
+    calendarEventB.startsAt.getTime(),
+  );
+
+  if (startsAtSort === 0 && calendarEventA.endsAt && calendarEventB.endsAt) {
+    return sortAsc(
+      calendarEventA.endsAt.getTime(),
+      calendarEventB.endsAt.getTime(),
+    );
+  }
+
+  return startsAtSort;
+};
+
+export const sortCalendarEventsDesc = (
+  calendarEventA: Pick<CalendarEvent, 'startsAt' | 'endsAt'>,
+  calendarEventB: Pick<CalendarEvent, 'startsAt' | 'endsAt'>,
+) => -sortCalendarEventsAsc(calendarEventA, calendarEventB);

packages/twenty-front/src/modules/ui/layout/show-page/components/ShowPageRightContainer.tsx

@@ -1,6 +1,7 @@
 import styled from '@emotion/styled';
 import { useRecoilValue } from 'recoil';
 
+import { Calendar } from '@/activities/calendar/components/Calendar';
 import { EmailThreads } from '@/activities/emails/components/EmailThreads';
 import { Attachments } from '@/activities/files/components/Attachments';
 import { Notes } from '@/activities/notes/components/Notes';
@@ -136,6 +137,7 @@ export const ShowPageRightContainer = ({
         <Attachments targetableObject={targetableObject} />
       )}
       {activeTabId === 'emails' && <EmailThreads entity={targetableObject} />}
+      {activeTabId === 'calendar' && <Calendar />}
     </StyledShowPageRightContainer>
   );
 };

packages/twenty-front/src/testing/mock-data/calendar.ts

@@ -0,0 +1,52 @@
+import { addDays, subMonths } from 'date-fns';
+
+import { CalendarEvent } from '@/activities/calendar/types/CalendarEvent';
+
+export const mockedCalendarEvents: CalendarEvent[] = [
+  {
+    id: '9a6b35f1-6078-415b-9540-f62671bb81d0',
+    endsAt: addDays(new Date().setHours(11, 30), 1),
+    isFullDay: false,
+    startsAt: addDays(new Date().setHours(10, 0), 1),
+    visibility: 'METADATA',
+  },
+  {
+    id: '19b32878-a950-4968-9e3b-ce5da514ea41',
+    endsAt: new Date(new Date().setHours(18, 40)),
+    isCanceled: true,
+    isFullDay: false,
+    startsAt: new Date(new Date().setHours(18, 0)),
+    title: 'Bug solving',
+    visibility: 'SHARE_EVERYTHING',
+  },
+  {
+    id: '6ad1cbcb-2ac4-409e-aff0-48165556fc0c',
+    endsAt: new Date(new Date().setHours(16, 30)),
+    isFullDay: false,
+    startsAt: new Date(new Date().setHours(15, 15)),
+    title: 'Onboarding Follow-Up Call',
+    visibility: 'SHARE_EVERYTHING',
+  },
+  {
+    id: '52cc83e3-f3dc-4c25-8a7d-5ff857612142',
+    endsAt: new Date(new Date().setHours(10, 30)),
+    isFullDay: false,
+    startsAt: new Date(new Date().setHours(10, 0)),
+    title: 'Onboarding Call',
+    visibility: 'SHARE_EVERYTHING',
+  },
+  {
+    id: '5a792d11-259a-4099-af51-59eb85e15d83',
+    isFullDay: true,
+    startsAt: subMonths(new Date().setHours(8, 0), 1),
+    visibility: 'METADATA',
+  },
+  {
+    id: '89e2a1c7-3d3f-4e79-a492-aa5de3785fc5',
+    endsAt: subMonths(new Date().setHours(14, 30), 3),
+    isFullDay: false,
+    startsAt: subMonths(new Date().setHours(14, 0), 3),
+    title: 'Alan x Garry',
+    visibility: 'SHARE_EVERYTHING',
+  },
+];

packages/twenty-front/src/utils/array/groupArrayItemsBy.ts

@@ -17,10 +17,7 @@
  *   vegetable: [{ id: '2', type: 'vegetable' }],
  * }
  */
-export const groupArrayItemsBy = <
+export const groupArrayItemsBy = <ArrayItem, Key extends string | number>(
-  ArrayItem extends Record<string, unknown>,
-  Key extends string,
->(
   array: ArrayItem[],
   computeGroupKey: (item: ArrayItem) => Key,
 ) =>