rename_rules.rb

# this method should return a path where files should be stored inside the destination directory and
# the name that an identified file should take.
# As a sample, the given file uses the romanji name of the anime as the folder
# and the file is written as anime_name - episode <number> [groupname] and movie files are stored as
# anime_name - Complete Movie or anime_name - Part 1 of 3.
# here is a sample of the "info" you will get if you want to change the name format.

# {
#   fid: 271_926,
#   file: {
#     length: '1778',
#     quality: 'high',
#     video_resolution: '640x480',
#     source: 'LD',
#     sub_language: 'none',
#     gid: '0',
#     dub_language: 'japanese',
#     eid: '26772',
#     aid: '1179',
#   },
#   anime: {
#     type: 'OVA',
#     ep_romaji_name: '',
#     highest_episode_number: '2',
#     group_name: 'raw/unknown',
#     english_name: '',
#     group_short_name: 'raw',
#     romaji_name: 'Bounty Dog: Getsumen no Ibu',
#     year: '1994-1994', epno: '1',
#     ep_english_name: 'Code 1'
#   },
# }

def generate_name(info)
  anime = info[:anime]
  name = anime[:romaji_name]
  episode = " - episode #{anime[:epno]}"
  part =
    if movie?(anime)
      if /Complete Movie|Part \d of \d/.match(anime[:ep_english_name]) && !special?(anime)
        " - #{anime[:ep_english_name]}"
      else
        "#{episode} - #{anime[:ep_english_name]}"
      end
    else
      episode
    end
  [anime[:romaji_name], "#{name}#{part}#{group_name(anime)}"]
end

def group_name(anime)
  g = anime[:group_short_name]
  g == 'raw' ? nil : " [#{g}]"
end

def movie?(anime)
  anime[:type] == 'Movie'
end

def special?(anime)
  result = /^(?<spc_type>[A-Z])?\d+(?:-\d+)?$/.match anime[:epno]
  raise 'unknown' unless result

  !result[:spc_type].nil?
end