add required functions and format all booking confirmation emails pro…

…perly

server/src/business-layer/services/StripeService.ts

@@ -20,7 +20,10 @@ import {
 import BookingSlotService from "data-layer/services/BookingSlotsService"
 import console from "console"
 import MailService from "./MailService"
-import BookingUtils from "../utils/BookingUtils"
+import BookingUtils, {
+  CHECK_IN_TIME,
+  CHECK_OUT_TIME
+} from "../utils/BookingUtils"
 
 const stripe = new Stripe(process.env.STRIPE_API_KEY)
 
@@ -438,8 +441,8 @@ export default class StripeService {
       await new MailService().sendBookingConfirmationEmail(
         userAuthData.email,
         `${first_name} ${last_name}`,
-        session.metadata[START_DATE],
-        session.metadata[END_DATE]
+        `${session.metadata[START_DATE]} ${CHECK_IN_TIME} (check in)`,
+        `${BookingUtils.addOneDay(session.metadata[END_DATE])} ${CHECK_OUT_TIME} (check out)`
       )
     } catch (error) {
       console.error(`Failed to send an email to the user ${uid}`, error)

server/src/business-layer/utils/BookingUtils.test.ts

@@ -159,4 +159,37 @@ describe("BookingUtils", () => {
       expect(result).toBe(false)
     })
   })
+  describe("BookingUtils.addOneDay", () => {
+    it("should add one day to a regular date", () => {
+      expect(BookingUtils.addOneDay("01/08/2024")).toBe("02/08/2024")
+    })
+
+    it("should handle end of month", () => {
+      expect(BookingUtils.addOneDay("31/07/2024")).toBe("01/08/2024")
+    })
+
+    it("should handle end of year", () => {
+      expect(BookingUtils.addOneDay("31/12/2024")).toBe("01/01/2025")
+    })
+
+    it("should handle leap year", () => {
+      expect(BookingUtils.addOneDay("28/02/2024")).toBe("29/02/2024")
+      expect(BookingUtils.addOneDay("29/02/2024")).toBe("01/03/2024")
+    })
+
+    it("should handle non-leap year", () => {
+      expect(BookingUtils.addOneDay("28/02/2023")).toBe("01/03/2023")
+    })
+
+    it("should handle single digit day and month", () => {
+      expect(BookingUtils.addOneDay("01/01/2024")).toBe("02/01/2024")
+      expect(BookingUtils.addOneDay("09/09/2024")).toBe("10/09/2024")
+    })
+
+    it("should handle invalid date format", () => {
+      expect(() => BookingUtils.addOneDay("2024/01/01")).toThrow()
+      expect(() => BookingUtils.addOneDay("01-01-2024")).toThrow()
+      expect(() => BookingUtils.addOneDay("invalid-date")).toThrow()
+    })
+  })
 })

server/src/business-layer/utils/BookingUtils.ts

@@ -17,6 +17,9 @@ _earliestDate.setUTCHours(0, 0, 0, 0)
 export const _latestDate = new Date(_earliestDate)
 _latestDate.setFullYear(_earliestDate.getFullYear() + 1)
 
+export const CHECK_IN_TIME = "3:00 pm" as const
+export const CHECK_OUT_TIME = "11:00 am" as const
+
 const BookingUtils = {
   /**
    * Used to check if the dates are within the acceptable range
@@ -111,6 +114,47 @@ const BookingUtils = {
 
     const availableSlots = bookingSlot.max_bookings - bookingCount
     return availableSlots <= 0
+  },
+  /**
+   * Adds one day to the given date string in the format dd/mm/yyyy.
+   *
+   * This function parses the input date string, adds one day to it, and then
+   * formats it back to the dd/mm/yyyy string format. It correctly handles edge
+   * cases such as the end of a month, end of a year, and leap years.
+   *
+   * @param {string} dateString - The date string in the format dd/mm/yyyy.
+   * @returns {string} - The new date string, one day later, in the format dd/mm/yyyy.
+   *
+   * @throws {Error} - Throws an error if the input date string is not in the format dd/mm/yyyy.
+   *
+   * @example
+   * ```typescript
+   * addOneDay('31/07/2024'); // Returns '01/08/2024'
+   * addOneDay('28/02/2024'); // Returns '29/02/2024'
+   * addOneDay('31/12/2024'); // Returns '01/01/2025'
+   * ```
+   *
+   * @remarks
+   * This function uses the JavaScript `Date` object to handle date manipulation.
+   * The `Date` object automatically adjusts for month and year boundaries, including
+   * leap years. The function assumes the input date string is valid and in the correct
+   * format. If the input date string is invalid or not in the format dd/mm/yyyy, the
+   * function will throw an error.
+   */
+  addOneDay: (dateString: string): string => {
+    // Parse the input date string
+    const [day, month, year] = dateString.split("/").map(Number)
+    const date = new Date(year, month - 1, day)
+
+    // Add one day
+    date.setDate(date.getDate() + 1)
+
+    // Format the new date back to dd/mm/yyyy
+    const newDay = String(date.getDate()).padStart(2, "0")
+    const newMonth = String(date.getMonth() + 1).padStart(2, "0")
+    const newYear = date.getFullYear()
+
+    return `${newDay}/${newMonth}/${newYear}`
   }
 } as const
 

server/src/service-layer/controllers/AdminController.ts

@@ -52,6 +52,10 @@ import { UserAccountTypes } from "../../business-layer/utils/AuthServiceClaims"
 import { UserRecord } from "firebase-admin/auth"
 import { Timestamp } from "firebase-admin/firestore"
 import MailService from "business-layer/services/MailService"
+import BookingUtils, {
+  CHECK_IN_TIME,
+  CHECK_OUT_TIME
+} from "business-layer/utils/BookingUtils"
 
 @Route("admin")
 @Security("jwt", ["admin"])
@@ -247,8 +251,8 @@ export class AdminController extends Controller {
         mailService.sendBookingConfirmationEmail(
           userAuthData.email,
           `${first_name} ${last_name}`,
-          BOOKING_START_DATE,
-          BOOKING_END_DATE
+          `${BOOKING_START_DATE} ${CHECK_IN_TIME} (check in)`,
+          `${BookingUtils.addOneDay(BOOKING_END_DATE)} ${CHECK_OUT_TIME} (check out)`
         )
       } catch (e) {
         console.error(