Hotel-Management.py

def menu():
    print("")
    print("")
    print("                         Welcome to Hotel Database Management Software")
    print("")
    print("")

    print("1-Add new customer details")
    print("2-Modify already existing customer details")
    print("3-Search customer details")
    print("4-View all customer details")
    print("5-Delete customer details")
    print("6-Exit the program")
    print("")

    user_input = int(input("Enter your choice(1-6): "))

    if user_input == 1:
        add()

    elif user_input == 2:
        modify()

    elif user_input == 3:
        search()

    elif user_input == 4:
        view()

    elif user_input == 5:
        remove()

    elif user_input == 6:
        exit()


def add():

    print("")
    Name1 = input("Enter your first name: ")
    print("")

    Name2 = input("Enter your last name: ")
    print("")

    Phone_Num = input("Enter your phone number(without +91): ")
    print("")

    print("These are the rooms that are currently available")
    print("1-Normal (500/Day)")
    print("2-Deluxe (1000/Day)")
    print("3-Super Deluxe (1500/Day)")
    print("4-Premium Deluxe (2000/Day)")
    print("")
    Room_Type = int(input("Which type you want(1-4): "))
    print("")

    if Room_Type == 1:
        x = 500
        Room_Type = "Normal"
    elif Room_Type == 2:
        x = 1000
        Room_Type = "Deluxe"
    elif Room_Type == 3:
        x = 1500
        Room_Type = "Super Deluxe"
    elif Room_Type == 4:
        x = 2000
        Room_Type = "Premium"

    Days = int(input("How many days you will stay: "))
    Money = x * Days
    Money = str(Money)
    print("")

    print("You have to pay ", (Money))
    print("")

    Payment = input("Mode of payment(Card/Cash/Online): ").capitalize()
    if Payment == "Card":
        print("Payment with card")
    elif Payment == "Cash":
        print("Payment with cash")
    elif Payment == "Online":
        print("Online payment")
    print("")

    File = open("Management.txt", "r")
    string = File.read()
    string = string.replace("'", '"')
    dictionary = json.loads(string)
    File.close()

    if len(dictionary.get("Room")) == 0:
        Room_num = "501"
    else:
        listt = dictionary.get("Room")
        tempp = len(listt) - 1
        temppp = int(listt[tempp])
        Room_num = 1 + temppp
        Room_num = str(Room_num)

    print("You have been assigned Room Number", Room_num)
    print(f"name : {Name1} {Name2}")
    print(f"phone number : +91{Phone_Num}")
    print(f"Room type : {Room_Type}")
    print(f"Stay (day) : {Days}")

    dictionary["First_Name"].append(Name1)
    dictionary["Last_Name"].append(Name2)
    dictionary["Phone_num"].append(Phone_Num)
    dictionary["Room_Type"].append(Room_Type)
    dictionary["Days"].append(Days)
    dictionary["Price"].append(Money)
    dictionary["Room"].append(Room_num)

    File = open("Management.txt", "w", encoding="utf-8")
    File.write(str(dictionary))
    File.close()

    print("")
    print("Your data has been successfully added to our database.")

    exit_menu()


import os
import json

filecheck = os.path.isfile("Management.txt")
if filecheck == False:
    File = open("Management.txt", "a", encoding="utf-8")
    temp1 = {
        "First_Name": [],
        "Last_Name": [],
        "Phone_num": [],
        "Room_Type": [],
        "Days": [],
        "Price": [],
        "Room": [],
    }
    File.write(str(temp1))
    File.close()


def modify():

    File = open("Management.txt", "r")
    string = File.read()
    string = string.replace("'", '"')
    dictionary = json.loads(string)
    File.close()

    dict_num = dictionary.get("Room")
    dict_len = len(dict_num)
    if dict_len == 0:
        print("")
        print("There is no data in our database")
        print("")
        menu()
    else:
        print("")
        Room = input("Enter your Room Number: ")

        listt = dictionary["Room"]
        index = int(listt.index(Room))

        print("")
        print("1-Change your first name")
        print("2-Change your last name")
        print("3-Change your phone number")

        print("")
        choice = input("Enter your choice: ")
        print("")

        File = open("Management.txt", "w", encoding="utf-8")

        if choice == str(1):
            user_input = input("Enter New First Name: ")
            listt1 = dictionary["First_Name"]
            listt1[index] = user_input
            dictionary["First_Name"] = None
            dictionary["First_Name"] = listt1
            File.write(str(dictionary))
            File.close()

        elif choice == str(2):
            user_input = input("Enter New Last Name: ")
            listt1 = dictionary["Last_Name"]
            listt1[index] = user_input
            dictionary["Last_Name"] = None
            dictionary["Last_Name"] = listt1
            File.write(str(dictionary))
            File.close()

        elif choice == str(3):
            user_input = input("Enter New Phone Number: ")
            listt1 = dictionary["Phone_num"]
            listt1[index] = user_input
            dictionary["Phone_num"] = None
            dictionary["Phone_num"] = listt1
            File.write(str(dictionary))
            File.close()

        print("")
        print("Your data has been successfully updated")

        exit_menu()


def search():

    File = open("Management.txt", "r")
    string = File.read()
    string = string.replace("'", '"')
    dictionary = json.loads(string)
    File.close()

    dict_num = dictionary.get("Room")
    dict_len = len(dict_num)
    if dict_len == 0:
        print("")
        print("There is no data in our database")
        print("")
        menu()
    else:
        print("")
        Room = input("Enter your Room Number: ")
        print("")

        listt = dictionary["Room"]
        index = int(listt.index(Room))

        listt_fname = dictionary.get("First_Name")
        listt_lname = dictionary.get("Last_Name")
        listt_phone = dictionary.get("Phone_num")
        listt_type = dictionary.get("Room_Type")
        listt_days = dictionary.get("Days")
        listt_price = dictionary.get("Price")
        listt_num = dictionary.get("Room")

        print("")
        print("First Name:", listt_fname[index])
        print("Last Name:", listt_lname[index])
        print("Phone number:", listt_phone[index])
        print("Room Type:", listt_type[index])
        print("Days staying:", listt_days[index])
        print("Money paid:", listt_price[index])
        print("Room Number:", listt_num[index])

        exit_menu()


def remove():
    File = open("Management.txt", "r")
    string = File.read()
    string = string.replace("'", '"')
    dictionary = json.loads(string)
    File.close()

    dict_num = dictionary.get("Room")
    dict_len = len(dict_num)
    if dict_len == 0:
        print("")
        print("There is no data in our database")
        print("")
        menu()
    else:
        print("")
        Room = input("Enter your Room Number: ")
        print("")

        listt = dictionary["Room"]
        index = int(listt.index(Room))

        listt_fname = dictionary.get("First_Name")
        listt_lname = dictionary.get("Last_Name")
        listt_phone = dictionary.get("Phone_num")
        listt_type = dictionary.get("Room_Type")
        listt_days = dictionary.get("Days")
        listt_price = dictionary.get("Price")
        listt_num = dictionary.get("Room")

        del listt_fname[index]
        del listt_lname[index]
        del listt_phone[index]
        del listt_type[index]
        del listt_days[index]
        del listt_price[index]
        del listt_num[index]

        dictionary["First_Name"] = None
        dictionary["First_Name"] = listt_fname

        dictionary["Last_Name"] = None
        dictionary["Last_Name"] = listt_lname

        dictionary["Phone_num"] = None
        dictionary["Phone_num"] = listt_phone

        dictionary["Room_Type"] = None
        dictionary["Room_Type"] = listt_type

        dictionary["Days"] = None
        dictionary["Days"] = listt_days

        dictionary["Price"] = None
        dictionary["Price"] = listt_price

        dictionary["Room"] = None
        dictionary["Room"] = listt_num

        file1 = open("Management.txt", "w", encoding="utf-8")
        file1.write(str(dictionary))
        file1.close()

        print("Details has been removed successfully")

        exit_menu()


def view():

    File = open("Management.txt", "r")
    string = File.read()
    string = string.replace("'", '"')
    dictionary = json.loads(string)
    File.close()

    dict_num = dictionary.get("Room")
    dict_len = len(dict_num)
    if dict_len == 0:
        print("")
        print("There is no data in our database")
        print("")
        menu()

    else:
        listt = dictionary["Room"]
        a = len(listt)

        index = 0
        while index != a:
            listt_fname = dictionary.get("First_Name")
            listt_lname = dictionary.get("Last_Name")
            listt_phone = dictionary.get("Phone_num")
            listt_type = dictionary.get("Room_Type")
            listt_days = dictionary.get("Days")
            listt_price = dictionary.get("Price")
            listt_num = dictionary.get("Room")

            print("")
            print("First Name:", listt_fname[index])
            print("Last Name:", listt_lname[index])
            print("Phone number:", listt_phone[index])
            print("Room Type:", listt_type[index])
            print("Days staying:", listt_days[index])
            print("Money paid:", listt_price[index])
            print("Room Number:", listt_num[index])
            print("")

            index = index + 1

        exit_menu()


def exit():
    print("")
    print("                             Thanks for visiting")
    print("                                 Goodbye")


def exit_menu():
    print("")
    print("Do you want to exit the program or return to main menu")
    print("1-Main Menu")
    print("2-Exit")
    print("")

    user_input = int(input("Enter your choice: "))
    if user_input == 2:
        exit()
    elif user_input == 1:
        menu()


try:
    menu()
except KeyboardInterrupt as exit:
    print("\nexiting...!")

# menu()