module Rbtclk

# File lib/rbtclk.rb, line 39
def display_clock(params)
  params = fill(params)

  case params[:mode]
  when "clock"
    remove_extra_params(params)
    timer = Clock.new(params)
    timer.show
  when "countup"
    remove_extra_params(params)
    timer = CountupTimer.new(params)
    timer.show
  when "countdown"
    remove_extra_params(params)
    timer = CountdownTimer.new(params)
    timer.show
  else
    warn "#{params[:mode]} mode is not supported."
    warn "You can use [clock, countup, countdown]."
    exit(1)
  end
end

# File lib/rbtclk.rb, line 62
def fill(params)
  {mode: params[:mode] || MODE,
   font: params[:font] || FONT,
   format: params[:format] || FORMAT,
   color: params[:color] || COLOR,
   time: params[:time] || TIME,
   no_alarm: params[:no_alarm] || NO_ALARM}
end

# File lib/rbtclk.rb, line 71
def remove_extra_params(params)
  if params[:mode] != "countdown"
    params.delete(:time)
    params.delete(:no_alarm)
  end

  params.delete(:mode)
end

# File lib/rbtclk.rb, line 17
def run(args)
  params = {}

  OptionParser.new do |opt|
    opt.on("--mode MODE") { |m| params[:mode] = m }
    opt.on("--format FORMAT") { |f| params[:format] = f }
    opt.on("--font FONT") { |f| params[:font] = f }
    opt.on("--version") { |v| params[:version] = v }
    opt.on("--color COLOR") { |c| params[:color] = c }
    opt.on("--time TIME") { |t| params[:time] = t }
    opt.on("--noalarm") { |n| params[:no_alarm] = n }

    opt.parse!(args)
  end

  if params[:version]
    puts Rbtclk::VERSION
  else
    display_clock(params)
  end
end