require "option_parser"
require "yaml"
require "colorize"

require "./pmng/*"
require "./pmng/functions/*"

module Pmng
  # check password file exists
  if File.exists?(PASSWORD_FILE_PATH)
    yaml = File.open(PASSWORD_FILE_PATH) do |file|
      YAML.parse(file)
    end
  else
    print "~/.pwd.yml".colorize(:red).mode(:bold)
    puts ": No such file"

    exit(1)
  end

  # check file ppermissions
  password_file_permissions = File.info(PASSWORD_FILE_PATH).permissions.to_s

  if /\d{3}/.match(password_file_permissions).try &.[0] != "600"
    puts "Password file permissions is not RW for you.".colorize(:red)
    print "Execute: ".colorize(:yellow)
    print "(chmod 600 ~/.pwd.yml) ".colorize(:green).mode(:bold)
    puts "for fix.".colorize(:yellow)

    exit(1)
  end

  # fill passwords array
  passwords_array = [] of Password
  count = 0
  while count < yaml.size
    passwords_array << Password.from_yaml(yaml[count].to_yaml)
    count += 1
  end

  # pmng title
  system "clear"
  puts ASCII_LOGO.colorize(:yellow)
  puts "The very simple password manager for humans".colorize(:yellow).mode(:bold)
  puts "-------------------------------------------".colorize(:yellow).mode(:bold)

  statistics = Functions::Statistics.new(passwords_array)

  # main loop
  loop = true
  while loop
    # shell prompt
    print "Enter URL (".colorize(:white).mode(:bold)
    print ":h".colorize(:red).mode(:bold)
    print " for help or ".colorize(:white).mode(:bold)
    print ":q".colorize(:red).mode(:bold)
    print " for exit)\n".colorize(:white).mode(:bold)
    print "> ".colorize(:green).mode(:bold)

    begin
      STDIN.read_timeout = USER_INPUT_TIMEOUT
      password_string = STDIN.gets
    rescue IO::TimeoutError
      loop = false
    end

    if password_string.to_s == ":q"
      # if ':q' to close program
      loop = false
    elsif password_string.to_s.size == 0
      # if puts empty, retry prompt
      puts
    elsif password_string.to_s == ":h"
      # if ':h' to view help
      system "clear"

      puts "Help\n----".colorize(:yellow).mode(:bold)
      print ":s".colorize(:red).mode(:bold)
      puts " - Return stats"
    elsif password_string.to_s == ":s"
      # if ':s' to view Statistics
      system "clear"
      puts "Statistics\n----------".colorize(:yellow).mode(:bold)

      print "All elements: ".colorize(:yellow).mode(:bold)
      puts statistics.size

      print "Passwords outdated: ".colorize(:red).mode(:bold)
      puts statistics.outdated
    else
      # list search password
      system "clear"

      passwords_finded_array = 0

      passwords_array.each do |item|
        if item.url.includes?(password_string.to_s.downcase)
          Functions.show_item(item)

          puts "-----".colorize(:dark_gray).mode(:bold)

          passwords_finded_array += 1
        end
      end

      puts
      print "Finded ".colorize(:yellow).mode(:bold)
      print passwords_finded_array.colorize(:red).mode(:bold)
      puts " records".colorize(:yellow).mode(:bold)
      puts "-----".colorize(:dark_gray).mode(:bold)
    end

    puts
  end

  system "clear"
  puts "Bye! 👋"
end