module Seize

# File lib/seize/commands.rb, line 43
def self.check(channel_name)
  channel = Seize::Twitch.get_channel(channel_name)
  if channel.nil?
    puts 'error: channel does not exist'
  elsif channel['stream'].nil?
    puts "#{channel_name} is offline"
  else
    game = channel['stream']['game']
    viewers = Seize::Utils.commaize(channel['stream']['viewers'])
    puts "#{channel_name} is playing #{game} with #{viewers} viewers"
  end
end

# File lib/seize/commands.rb, line 11
def self.list(number)
  line_length = 79
  number_length = 5
  name_length = 20
  viewers_length = 12
  game_length = 40
  row_template = " %-#{number_length}{number}" \
                 " %-#{name_length}{name}" \
                 " %-#{viewers_length}{viewers}" \
                 " %{game}\n"
  result = ''
  line = '-' * line_length << "\n"
  result << line
  result << row_template % {
    number: '#',
    name: 'channel',
    viewers: 'viewers',
    game: 'game'
  } 
  result << line
  streams = Seize::Twitch.get_streams(limit: number)['streams']
  streams.each_with_index do |stream, i|
    result << row_template % {
      number: "#{i+1}.",
      name: Seize::Utils.truncate(stream['channel']['name'], name_length),
      viewers: Seize::Utils.commaize(stream['viewers']),
      game: Seize::Utils.truncate(stream['game'], game_length)
    }
  end
  puts result
end

# File lib/seize/commands.rb, line 7
def self.watch(channel, quality)
  exec("livestreamer https://twitch.tv/#{channel} #{quality}")
end