module FandomTriviaSources

# File lib/fandom_trivia_sources.rb, line 43
def all_fandom_profiles(bots_dir:, root:)
  profiles = []
  each_bot_config(bots_dir) do |raw|
    profile = load_fandom_profile(raw, root: root)
    profiles << profile if profile
  end
  profiles.uniq
end

# File lib/fandom_trivia_sources.rb, line 105
def bot_nicks(raw)
  nicks = []
  nicks << raw["nick"] if raw["nick"]
  nicks << raw["preferred_nick"] if raw["preferred_nick"]
  nicks.concat(Array(raw["nicks"]))
  nicks.compact.map(&:to_s).reject(&:empty?).uniq
end

# File lib/fandom_trivia_sources.rb, line 18
def build_nick_index(bots_dir:, root:)
  index = {}
  each_bot_config(bots_dir) do |raw|
    profile = load_fandom_profile(raw, root: root)
    next unless profile

    bot_nicks(raw).each do |nick|
      key = RabbotDb.normalize_nick(nick).downcase
      next if key.empty?

      index[key] = profile
    end
  end
  index
end

# File lib/fandom_trivia_sources.rb, line 69
def channel_profile_candidates(channel_users, bot_nicks, index)
  return [] if channel_users.nil?

  present_nicks = DirectchatPlan.channel_bots(channel_users, bot_nicks)
  fandom_profiles = profiles_for_nicks(present_nicks, index: index)
  representatives_by_wiki(fandom_profiles)
end

# File lib/fandom_trivia_sources.rb, line 14
def default_bots_dir(root:)
  File.join(root, "config", "bots")
end

# File lib/fandom_trivia_sources.rb, line 61
def discover_profiles(channel_users: nil, bot_nicks:, bots_dir:, root:)
  index = build_nick_index(bots_dir: bots_dir, root: root)
  channel_profiles = channel_profile_candidates(channel_users, bot_nicks, index)
  return channel_profiles unless channel_profiles.empty?

  all_fandom_profiles(bots_dir: bots_dir, root: root)
end

# File lib/fandom_trivia_sources.rb, line 77
def each_bot_config(bots_dir)
  return unless File.directory?(bots_dir)

  Dir.glob(File.join(bots_dir, "*.yml")).sort.each do |path|
    next if EXCLUDED_BOT_IDS.include?(File.basename(path, ".yml"))

    raw = YAML.safe_load_file(path, aliases: false)
    next unless raw.is_a?(Hash)

    yield raw
  end
rescue StandardError
  nil
end

# File lib/fandom_trivia_sources.rb, line 92
def load_fandom_profile(raw, root:)
  profile_path = raw["profile_path"].to_s.strip
  return nil if profile_path.empty?

  expanded = File.expand_path(profile_path, root)
  profile = CharacterProfile.load(expanded)
  return profile if FandomTrivia.fandom_source?(profile)

  nil
rescue StandardError
  nil
end

# File lib/fandom_trivia_sources.rb, line 34
def profiles_for_nicks(nicks, index:)
  nicks.filter_map do |nick|
    key = RabbotDb.normalize_nick(nick).downcase
    next if key.empty?

    index[key]
  end.uniq
end

# File lib/fandom_trivia_sources.rb, line 52
def representatives_by_wiki(profiles)
  profiles.each_with_object({}) do |profile, grouped|
    host = FandomTrivia.wiki_host(profile.source_url)
    next if host.empty?

    grouped[host] ||= profile
  end.values
end