Merged in fix/BOOK-662-handle-overlapping-dates-timezone (pull request #3319)

Fix/BOOK-662 handle overlapping dates timezone

* fix(BOOK-662): handle overlapping dates alerts

* fix(BOOK-662): handle overlapping dates alerts

* fix(BOOK-662): add test same dates


Approved-by: Anton Gunnarsson

apps/scandic-web/components/HotelReservation/MyStay/index.tsx

@@ -219,8 +219,8 @@ async function MyStay(props: {
 
     hotel.specialAlerts = filterOverlappingDates(
       hotel.specialAlerts,
-      dt(fromDate),
-      dt(toDate)
+      dt.utc(fromDate),
+      dt.utc(toDate)
     )
 
     return (

packages/booking-flow/lib/components/BookingConfirmation/index.tsx

@@ -2,7 +2,6 @@ import { notFound } from "next/navigation"
 
 import { AlertTypeEnum } from "@scandic-hotels/common/constants/alert"
 import { dt } from "@scandic-hotels/common/dt"
-import { hasOverlappingDates } from "@scandic-hotels/common/dt/utils/hasOverlappingDates"
 import { Alert } from "@scandic-hotels/design-system/Alert"
 import { Divider } from "@scandic-hotels/design-system/Divider"
 import { HotelTypeEnum } from "@scandic-hotels/trpc/enums/hotelType"
@@ -10,6 +9,7 @@ import { HotelTypeEnum } from "@scandic-hotels/trpc/enums/hotelType"
 import { env } from "../../../env/server"
 import { BookingConfirmationProvider } from "../../providers/BookingConfirmationProvider"
 import { getBookingConfirmation } from "../../trpc/memoizedRequests/getBookingConfirmation"
+import { filterOverlappingDates } from "../../utils/SelectRate"
 import { SidePanel } from "../SidePanel"
 import { Confirmation } from "./Confirmation"
 import { HotelDetails } from "./HotelDetails"
@@ -50,14 +50,12 @@ export async function BookingConfirmation({
   if (!room) {
     return notFound()
   }
-  const validAlerts = hotel.specialAlerts.filter(
-    (alert) =>
-      hasOverlappingDates(
-        alert,
-        dt(booking.checkInDate),
-        dt(booking.checkOutDate)
-      ) && alert.displayInBookingFlow
+  const validAlerts = filterOverlappingDates(
+    hotel.specialAlerts.filter((alert) => alert.displayInBookingFlow),
+    dt.utc(booking.checkInDate),
+    dt.utc(booking.checkOutDate)
   )
+
   return (
     <BookingConfirmationProvider
       bookingCode={booking.bookingCode}

packages/booking-flow/lib/components/SelectRate/index.tsx

@@ -2,10 +2,10 @@ import { cookies } from "next/headers"
 
 import { FamilyAndFriendsCodes } from "@scandic-hotels/common/constants/familyAndFriends"
 import { dt } from "@scandic-hotels/common/dt"
-import { hasOverlappingDates } from "@scandic-hotels/common/dt/utils/hasOverlappingDates"
 import { HotelInfoCard } from "@scandic-hotels/design-system/HotelInfoCard"
 
 import { mapApiImagesToGalleryImages } from "../../misc/imageGallery"
+import { filterOverlappingDates } from "../../utils/SelectRate"
 import FnFNotAllowedAlert from "../FnFNotAllowedAlert"
 import { HotelDetailsSidePeek } from "../HotelDetailsSidePeek"
 import { AmenitiesSidePeekLabel } from "./AmenititesSidePeekLabel"
@@ -33,10 +33,10 @@ export async function SelectRate({
     isInValidFNF = cookieStore.get("sc")?.value !== "1"
   }
 
-  const validAlerts = hotelData.hotel.specialAlerts.filter(
-    (alert) =>
-      hasOverlappingDates(alert, dt(booking.fromDate), dt(booking.toDate)) &&
-      alert.displayInBookingFlow
+  const validAlerts = filterOverlappingDates(
+    hotelData.hotel.specialAlerts.filter((alert) => alert.displayInBookingFlow),
+    dt.utc(booking.fromDate),
+    dt.utc(booking.toDate)
   )
 
   return (

packages/booking-flow/lib/utils/SelectRate/index.test.ts

@@ -1,82 +1,8 @@
 import { describe, expect, it } from "vitest"
 
-import { AlertTypeEnum } from "@scandic-hotels/common/constants/alert"
 import { CurrencyEnum } from "@scandic-hotels/common/constants/currency"
-import { dt } from "@scandic-hotels/common/dt"
 
-import {
-  calculateVat,
-  filterOverlappingDates,
-  sumPackages,
-  sumPackagesRequestedPrice,
-} from "./index"
-
-import type { specialAlertsSchema } from "@scandic-hotels/trpc/routers/hotels/schemas/hotel/specialAlerts"
-import type { z } from "zod"
-
-type Alert = z.infer<typeof specialAlertsSchema>[number]
-
-function makeAlert(start: string, end: string): Alert {
-  return {
-    id: "test-id",
-    name: "Test Alert",
-    heading: "Test Heading",
-    text: "Some text",
-    type: AlertTypeEnum.Alarm,
-    displayInBookingFlow: true,
-    startDate: start,
-    endDate: end,
-  }
-}
-
-describe("filterOverlappingDates", () => {
-  const alert = makeAlert("2025-09-01", "2025-09-10")
-
-  it("shows alert if booking starts inside alert", () => {
-    const result = filterOverlappingDates(
-      [alert],
-      dt("2025-09-05"),
-      dt("2025-09-12")
-    )
-    expect(result).toHaveLength(1)
-  })
-
-  it("shows alert if booking ends inside alert", () => {
-    const result = filterOverlappingDates(
-      [alert],
-      dt("2025-08-28"),
-      dt("2025-09-05")
-    )
-    expect(result).toHaveLength(1)
-  })
-
-  it("shows alert if booking fully contains alert", () => {
-    const result = filterOverlappingDates(
-      [alert],
-      dt("2025-08-28"),
-      dt("2025-09-15")
-    )
-    expect(result).toHaveLength(1)
-  })
-
-  it("shows alert if alert fully contains booking", () => {
-    const result = filterOverlappingDates(
-      [alert],
-      dt("2025-09-03"),
-      dt("2025-09-05")
-    )
-    expect(result).toHaveLength(1)
-  })
-
-  it("does not show alert if no overlap", () => {
-    const result = filterOverlappingDates(
-      [alert],
-      dt("2025-08-01"),
-      dt("2025-08-05")
-    )
-    expect(result).toHaveLength(0)
-  })
-})
+import { calculateVat, sumPackages, sumPackagesRequestedPrice } from "./index"
 
 describe("sumPackages", () => {
   it("returns 0 price for null packages", () => {

packages/common/dt/utils/hasOverlappingDates.test.ts

@@ -0,0 +1,38 @@
+import { describe, expect, it } from "vitest"
+
+import { dt } from "../dt"
+import { hasOverlappingDates } from "./hasOverlappingDates"
+
+describe("hasOverlappingDates", () => {
+  const item = { startDate: "2025-09-01", endDate: "2025-09-10" }
+
+  it("returns true if start date is within date range", () => {
+    const result = hasOverlappingDates(item, dt("2025-09-05"), dt("2025-09-12"))
+    expect(result).toBeTruthy()
+  })
+
+  it("returns true if end date is within date range", () => {
+    const result = hasOverlappingDates(item, dt("2025-08-28"), dt("2025-09-05"))
+    expect(result).toBeTruthy()
+  })
+
+  it("returns true if start and end date if match dates exactly", () => {
+    const result = hasOverlappingDates(item, dt("2025-09-01"), dt("2025-09-10"))
+    expect(result).toBeTruthy()
+  })
+
+  it("returns true if start and end date is within date range", () => {
+    const result = hasOverlappingDates(item, dt("2025-08-28"), dt("2025-09-15"))
+    expect(result).toBeTruthy()
+  })
+
+  it("returns true if start and end date is within date range", () => {
+    const result = hasOverlappingDates(item, dt("2025-09-03"), dt("2025-09-05"))
+    expect(result).toBeTruthy()
+  })
+
+  it("return false if no overlap", () => {
+    const result = hasOverlappingDates(item, dt("2025-08-01"), dt("2025-08-05"))
+    expect(result).toBeFalsy()
+  })
+})

packages/common/dt/utils/hasOverlappingDates.ts

@@ -10,8 +10,8 @@ export function hasOverlappingDates(
   fromDate: Date | Dayjs,
   toDate: Date | Dayjs
 ) {
-  const startDate = dt(fromDate)
-  const endDate = dt(toDate)
+  const startDate = dt.utc(fromDate)
+  const endDate = dt.utc(toDate)
 
   if (dateRangeItem.endDate && dateRangeItem.startDate) {
     const itemStartDate = dt(dateRangeItem.startDate)

packages/trpc/lib/routers/hotels/schemas/hotel/specialAlerts.ts

@@ -1,6 +1,7 @@
 import { z } from "zod"
 
 import { AlertTypeEnum } from "@scandic-hotels/common/constants/alert"
+import { dt } from "@scandic-hotels/common/dt"
 import { nullableStringValidator } from "@scandic-hotels/common/utils/zod/stringValidator"
 
 const specialAlertSchema = z.object({
@@ -28,7 +29,7 @@ export const specialAlertsSchema = z
       text: alert.description || null,
       type: AlertTypeEnum.Info,
       displayInBookingFlow: alert.displayInBookingFlow,
-      endDate: alert.endDate,
-      startDate: alert.startDate,
+      endDate: dt.utc(alert.endDate).toISOString(),
+      startDate: dt.utc(alert.startDate).toISOString(),
     }))
   )