file = File.new("Accounts.txt", "a") #load information on startup, and create the file

class Account # Making a class for the whole code to call it up later in the code

  def new_account # The user method


    prompt = "> " #creating a class for prompt here, since I use it multiple times
    puts"Insert Username"
    print prompt
    @username = gets.chomp.upcase #A global variabel which i can use outside the class

    if File.read("Accounts.txt").include?(@username) #so you don't register the same username, twice
      puts"This username is already taken. Returning you to the main menu."
      puts "_____________________________________________" #Making the code more visuable pretty and more orginasied
    else #If the name is not stored the method contiues
      puts"Insert Password"
      print prompt
      @password = gets.chomp

      if File.read("Accounts.txt").include?(@password)#the same as before, so you dont register the same number twice.

        puts
        puts "This Password is allready in use. Returning you to the main menu."
        puts "_____________________________________________"
      else
        puts"What is your full name?"
        print prompt
        @name = gets.chomp
        puts
        puts"Thanks for the input."
        puts "_____________________________________________"

        puts"Is this information correct? " #Giving the user all the information back to check for mistakes, etc.
        puts
        puts ("Username: #{@username} Password: #{@password} Name: #{@name}") #Loading up the information the user has given and shows it in the code
        puts "_____________________________________________"

        puts "Yes or No?" #Gives the user a choice to see if the information is correct
        print prompt

        while user_input = gets.chomp.upcase #loop while getting user input, making the input upcase so it is easier to find it in the textfile
          case user_input #Keeps the information
            when "YES" #When the user have written yes it will save the input in the textfile
              file = File.new("Accounts.txt", "a")
              file.puts("Username: #{@username}, Password: #{@password}, Name: #{@name}") #puts the information into the textfile, separeted by commas
              file.close
              puts
              puts "The information has now been stored in the Account.txt file."
              puts "_____________________________________________"
              break # make sure to break so you don't ask again
            when "NO" #When no the info will not be saved and you will be returing to the main menu
              puts
              puts "The information has not been stored. Returning you to the main menu."
              puts "_____________________________________________"
              break
            else #If the user writes something else than 'yes' or 'no' the code will ask for the correct input and will loop untill it has
              puts "Please either write 'Yes' or 'No'"
              print prompt # print the prompt, so the user knows to re-enter input
          end
        end
      end
    end
  end

  def search_account(search) #Making a search account method

    keyword = File.readlines('Accounts.txt')  #converting all the lines into indexes in an Array


    matches = keyword.select { |name| name[/#{search}/] } # Making a variable that ask for user imput .select returns the array containing all elements of search for which the given block returns a true value.



    if File.read("Accounts.txt").include?(search) #An if statement that will print the results if the textfile matches the keyword
      puts "_____________________________________________"
      puts ("Search results including the word/username/name " + search + ":") #
      puts
      puts matches
      puts "_____________________________________________"
    else #If not it will give the user feedback that its not there
      puts "_____________________________________________"
      puts
      puts ("Sorry, we couldnt find #{search} in the textfile.")
      puts "_____________________________________________"
    end
  end

  def all_Accounts
    puts
    puts "__________Users registered____________"
    puts
    f = File.new("Accounts.txt","r") # reads the textfie and shows what the textfile contais on the consol
    while !(f.eof?)
      line = f.gets()
      puts line
    end

  end

  def delete_Account

    puts("What user do you want to delete?")
    print("> ")
    keyword = gets.chomp.upcase # variable that ask for user input and making it upcase. Easier to find it in textfile



    txt_file = File.readlines('Accounts.txt')
    matches = txt_file.select { |name| name[/#{keyword}/] }
    search_results = matches.length




    if search_results > 1
      puts "_____________________________________________"
      puts "The name you entered gave these outputs:"
      puts ""
      puts matches
      puts ""
      puts "Please specify the name better, as we only allow one person to be deleted at the time. \nReturning you to the main menu."
      puts "_____________________________________________"

    else

      if File.read("Accounts.txt").include?(keyword) #An if statement that will print the results if the textfile matches the person
        puts "_____________________________________________"
        puts ("Is this the person you want to delete?")
        puts
        puts matches

        puts "_____________________________________________"

        puts "Yes or No?"
        print "> "

        while user_input = gets.chomp.upcase # loop while getting user input
          case user_input # A case that keeps the loop with while
            when "YES"

              no_matches = txt_file.reject { |name| name[/#{keyword}/] } #variable do not saves the input

              File.open('Accounts.txt','w+'){|out| out.puts no_matches}
              puts
              puts"User has been deleted. Returning you to the main menu."
              break # make sure to break so you don't ask again
            when "NO"
              puts
              puts "User will not be deleted. Returning you to the main menu."
              break # and again
            else
              puts "Please either write 'Yes' or 'No'"
              print "> " # print the prompt, so the user knows to re-enter input
          end
        end
        puts "_____________________________________________"
      else #If not it will give the user feedback that its not there
        puts "_____________________________________________"
        puts
        puts ("Sorry, we couldnt find #{keyword} in the textfile.")
        puts "_____________________________________________"
      end
    end
  end
end

account = Account.new
require 'io/console' # So you dont need to press enter
select = 0
prompt = "> "
puts
puts
puts "Welcome to the quiz"
puts "_____________________________________________"

loop do (select !=  7)
puts
puts("Press 1 to register a new user.\nPress 2 to search for a user or keyword within the textfile.\nPress 3 to show all users.\nPress 4 to delete a user.\nPress 5 to exit.")
puts "_____________________________________________"
select  =   STDIN.getch.to_i

if(select == 1)
  account.new_account

elsif(select == 2)
  puts("What user/keyword do you want to search for?") #You can search for a keyword, like forexample 'Manzur' which will prompt you back with every user names Manzur
  print prompt
  account.search_account(gets.chomp.upcase)

  #elsif calling up all methods if u press the keywords


elsif(select == 3)

  account.all_Accounts
  puts "_____________________________________________"




elsif(select == 4)

  account.delete_Account


elsif(select == 5)
  puts
  puts "The application will now exit."
  puts "_____________________________________________"

  break

else
  puts"Invalid input. Please try again."
  puts "_____________________________________________"

end

end