chore: course completed

booking-app/main.go

@@ -2,6 +2,8 @@ package main
 
 import (
   "fmt"
+  "time"
+  "sync"
   "booking-app/helper"
 )
 
@@ -17,6 +19,8 @@ type UserData struct {
   numberOfTickets uint
 }
 
+var wg = sync.WaitGroup{}
+
 func main() {
   greetUsers()
 
@@ -26,6 +30,8 @@ func main() {
 
     if isValidName && isValidEmail && isValidNumber {
       bookTicket(firstName, lastName, email, userTickets)
+      wg.Add(1)
+      go sendTicket(firstName, lastName, email, userTickets) 
 
       fmt.Printf("These are all the first names of our bookings: %v\n", buildFirstNames())
 
@@ -45,6 +51,16 @@ func main() {
       }
     }
   }
+  wg.Wait()
+}
+
+func sendTicket(firstName string, lastName string, email string, userTickets uint) {
+  time.Sleep(50 * time.Second)
+  ticket := fmt.Sprintf("%v tickets for %v %v", userTickets, firstName, lastName)
+  fmt.Println("#######")
+  fmt.Printf("Sending ticket:\n %v \nto email address %v\n", ticket, email)
+  fmt.Println("######")
+  wg.Done()
 }
 
 func bookTicket(firstName string, lastName string, email string, userTickets uint) {