require 'fileutils'
require 'paint'
require 'json'
require 'http'
require 'digest'
require 'io/console'
require_relative 'constants'

#
# Utility methods
#
module Rise
  module Util

    #
    # Checks if rise is being run for the first time
    #
    def self.is_first_run?
      !File.directory?(File.join(Dir.home, '.rise'))
    end

    #
    # Creates all of the necessary files and login information
    #
    def self.setup
      puts Paint['Detected first time setup, creating necessary files...', :blue]
      FileUtils.mkdir(RISE_DATA_DIR)
      FileUtils.mkdir(File.join(RISE_DATA_DIR, 'auth'))

      #TODO Reimplement when the backend server actually works
      # Get the input from the user
      #print Paint['1. Log in\n2. Sign up\n  > ', :bold]
      #while (choice = gets.chomp!)
      #  if choice == '1'
      #    login
      #    break
      #  elsif choice == '2'
      #    signup
      #    break
      #  else
      #    puts Paint['Please type `1` or `2`', :red]
      #    next
      #  end
      #end

    end

  end
end

# DO NOT USE
def login

  print '\nEmail: '
  email = gets.chomp!
  print '\nPassword: '
  password = STDIN.noecho(&:gets)
  hash = Digest::SHA256.hexdigest(password)
  res = HTTP.post("http://#{DOMAIN}:#{AUTH_PORT}/login?email=#{email}&hash=#{hash}")
  if res.code == 200
    puts Paint['\nLogin successful!', :green, :bold]
  else
    puts Paint['\nLogin failed!', :red, :bold]
    puts "Printing error: #{res.code}: #{res.body}"
  end
end

# DO NOT USE
def signup
  print '\nEmail: '
  email = gets.chomp!
  print '\nPassword: '
  password = STDIN.noecho(&:gets)
  hash = Digest::SHA256.hexdigest(password)
  res = HTTP.post("http://#{DOMAIN}:#{AUTH_PORT}/signup?email=#{email}&hash=#{hash}")
  if res.code == 200
    puts Paint['\nSignup successful!', :green, :bold]
    File.open(File.join(RISE_DATA_DIR, 'auth', 'creds.json'), 'a') do |f|
      creds_hash = {
        'email' => email,
        'hash'  => hash
      }
      f.puts(creds_hash.to_json)
    end
  elsif res.code == 409  # user already exists
    puts Paint['\nSignup failed!', :red, :bold]
    puts "Printing error: #{res.body}"
  end
end