Module: RamTool

Defined in:
lib/ram_tool.rb,
lib/ram_tool/version.rb

Constant Summary collapse

PIN_FILE = 
File.expand_path("~/.ram_tool_pin")
SESSION_FILE = 
File.expand_path("~/.ram_tool_session")
URL = 
URI("https://jjjm03299-wq.github.io/supreme-octo-potato/api/get-ram.json")
VERSION = 
"1.0.0"

Class Method Summary collapse

Class Method Details

.auth(sub) ⇒ Object 



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# File 'lib/ram_tool.rb', line 69

def auth(sub)
  case sub
  when "register"
    if File.exist?(PIN_FILE)
      puts "PIN already registered."
      return
    end

    pin1 = prompt_pin("Enter new PIN: ")
    pin2 = prompt_pin("Confirm new PIN: ")

    unless pin1 == pin2
      puts "PINs do not match."
      exit 1
    end

    File.write(PIN_FILE, pin1)
    puts "Registration successful."

  when "login"
    unless File.exist?(PIN_FILE)
      puts "No PIN registered."
      exit 1
    end

    pin = prompt_pin("Enter PIN: ")

    if pin == File.read(PIN_FILE).strip
      File.write(SESSION_FILE, "logged_in")
      puts "Login successful."
    else
      puts "Invalid PIN."
    end

  when "logout"
    unless logged_in?
      puts "Not logged in."
      return
    end

    pin = prompt_pin("Enter PIN to logout: ")

    if pin == File.read(PIN_FILE).strip
      File.delete(SESSION_FILE)
      puts "Logged out."
    else
      puts "Invalid PIN."
    end

  when "status"
    puts(logged_in? ? "Status: Logged in" : "Status: Logged out")

  when "reset"
    unless File.exist?(PIN_FILE)
      puts "No PIN registered."
      exit 1
    end

    current = prompt_pin("Enter current PIN: ")

    unless current == File.read(PIN_FILE).strip
      puts "Invalid PIN."
      exit 1
    end

    new_pin = prompt_pin("Enter new PIN: ")
    confirm = prompt_pin("Confirm new PIN: ")

    unless new_pin == confirm
      puts "PINs do not match."
      exit 1
    end

    File.write(PIN_FILE, new_pin)
    puts "PIN reset successful."

  else
    help
  end
end

.get_ram ⇒ Object 



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# File 'lib/ram_tool.rb', line 150

def get_ram
  unless logged_in?
    puts "Please login first."
    exit 1
  end

  response = Net::HTTP.get_response(URL)

  if response.is_a?(Net::HTTPSuccess)
    json = JSON.parse(response.body)
    puts "RAM: #{json["ram_mb"]} MB"
  else
    puts "HTTP #{response.code}"
  end
end

.help ⇒ Object 



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# File 'lib/ram_tool.rb', line 24

def help
  puts <<~TEXT
    ram-tool #{VERSION}

    Usage:
      ram-tool [command]

    Commands:
      auth register
      auth login
      auth logout
      auth status
      auth reset
      get

    Options:
      -h, --help
      -v, --version
  TEXT
end

.logged_in? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ram_tool.rb', line 20

def logged_in?
  File.exist?(SESSION_FILE)
end

.prompt_pin(prompt) ⇒ Object 



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# File 'lib/ram_tool.rb', line 15

def prompt_pin(prompt)
  print prompt
  STDIN.noecho(&:gets).to_s.strip.tap { puts }
end

.run(argv) ⇒ Object 



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# File 'lib/ram_tool.rb', line 45

def run(argv)
  cmd = argv[0]
  sub = argv[1]

  case cmd
  when "--version", "-v"
    puts "ram-tool #{VERSION}"

  when "--help", "-h", nil
    help

  when "auth"
    auth(sub)

  when "get"
    get_ram

  else
    puts "Unknown command: #{cmd}"
    help
    exit 1
  end
end