main.go

package main

import (
	"fmt"
	//"strings"
	"booking_app/helper"

)

var conference = "Go Conference"
const tickets = 50
var bookings = []string{} 


// var bookings [50]string  // array of fixed size


func main() {

	var remaining_tickets uint = 50

	fmt.Println("--------------------------------------------------------------------------")
	fmt.Println("                         welcome to", conference, "!                       ")
	fmt.Println("--------------------------------------------------------------------------")


	fmt.Println("Get your tickets here!")

	//fmt.Println("Number of tickets available:", tickets)

	fmt.Printf("Number of tickets available: %v\n", tickets)
	fmt.Println("Number of tickets remaining:", remaining_tickets)



	// Note:-


	/*
		we will be using %v for printing the value of the variable

		Now we will betaking data from user using fmt.Scan

		now we will be using loop to amke our code more efficient

	*/

	// for loop



	for remaining_tickets > 0 && len(bookings) < 50 {



		// getuserinput function



		Firstname, lastname, email, usertickets := getUserInput()



		// validate function



		isvalid, isvalidd := helper.Validate(Firstname, lastname, email, usertickets)

		if isvalid && isvalidd {

			

			remaining_tickets = remaining_tickets - usertickets
			fmt.Println("Number of tickets remaining:", remaining_tickets)


			// bookticket function


			bookticket( bookings, Firstname, lastname, email, usertickets)

			//fmt.Println("--------------------------------------------------------------------------")



		} else if usertickets > remaining_tickets {
			fmt.Println("Sorry! We only have", remaining_tickets, "tickets left.")
			//break
			continue

			// continue will alow the user to enter the data again

		} else if remaining_tickets == 0 {

			//end the program


			fmt.Println("Sorry! No more tickets available. Please try next year.")
			break

		} else {
			fmt.Println("Please enter the valid data")
			continue
		}

		



	}

}









func bookticket(bookings []string, Firstname string, lastname string, email string, usertickets uint) string {

	bookings = append(bookings, Firstname+" "+lastname)

	fmt.Println("--------------------------------------------------------------------------")
	fmt.Printf("Bookings: %v\n", bookings)
	fmt.Printf("Hello %v %v, you have booked %v tickets and you will get confirmation of tickets on your %v\n", Firstname, lastname, usertickets, email)
	fmt.Println("--------------------------------------------------------------------------")

	return Firstname
}




func getUserInput() (string, string, string, uint) {

	var Firstname string
	var usertickets uint
	var lastname string
	var email string

	fmt.Println("Enter your first name:")
	fmt.Scan(&Firstname)

	fmt.Println("Enter your last name:")
	fmt.Scan(&lastname)

	fmt.Println("Enter your email:")
	fmt.Scan(&email)

	fmt.Println("Enter the number of tickets you want to book:")
	fmt.Scan(&usertickets)

	return Firstname, lastname, email, usertickets

	


}






/*


func getfirstname(bookings []string, firstnames []string) ([]string, []string) {

	for _, booking := range bookings {
		names := strings.Fields(booking)
		firstnames = append(firstnames, names[0])
		fmt.Printf("first value is %v\n", bookings[0])
	}
	fmt.Printf("they are all the bookings %v\n", firstnames)
	return bookings, firstnames

}


*/


/*


func extractFirstNames(bookings []string) []string {
	firstnames := []string{}
	for _, booking := range bookings {
		names := strings.Fields(booking)
		if len(names) > 0 {
			firstnames = append(firstnames, names[0])
		}
	}
	return firstnames
}


*/




/*


func getfirstname(bookings []string, firstnames []string) ([]string, []string) {
	for _, booking := range bookings {
		names := strings.Fields(booking)
		if len(names) > 0 {
			firstnames = append(firstnames, names[0])
		}
	}
	fmt.Printf("First value is %v\n", firstnames[0])
	fmt.Printf("They are all the bookings: %v\n", firstnames)
	return bookings, firstnames
}


*/






//Note :-

		/*


			we will be using slice for storing the data of the user

			as our array is of fixed size we will be using slices for gettinga any amount of data

			gonna use function of string package for getting the first name of the user

			now we will be using if else statement for checking the condition

			noticketsremaining := remaining_tickets == 0


		*/

		// getfirstname function

		// var firstnames []string
		// getfirstname(bookings, firstnames)

		// bookings := []string{}
		// firstnames := extractFirstNames(bookings)

		// fmt.Printf("They are all the bookings: %v\n", firstnames)








		//Extra code :-

	

	/*
		we will be using %T for checking the type of the variable

		fmt.Printf("username is of type %T\n", username)

		bookings[0] = Firstname + " " + lastname

		checking the validity of the data entered by user

		//fmt.Printf("type of slice %T\n", bookings)



		//fmt.Printf("last name is  %v\n", bookings[1])

		//fmt.Printf("length of slice  is %v\n", len(bookings))

	*/