class Lingo::Config

# File lib/lingo/config.rb, line 33
def initialize(*args)
  @deprecated = Hash.seen

  @cli, @opts = CLI.new, {}

  @cli.execute(*args)
  @cli.options.each { |key, val| @opts[key.to_s] = val }

  load_config('language', :lang)
  load_config('config')

  if r = get('meeting/attendees', 'text_reader')
    f = @cli.files

    if i = r['files']
      r['files'] = i.strip == '$(files)' ? f : i.split(SEP_RE)
    elsif !f.empty?
      r['files'] = f
    end
  end
end

# File lib/lingo/config.rb, line 61
def [](key)
  key_to_nodes(key).inject(to_h) { |hash, node| hash[node] }
end

# File lib/lingo/config.rb, line 65
def []=(key, val)
  nodes = key_to_nodes(key); node = nodes.pop
  (self[nodes_to_key(nodes)] ||= {})[node] = val
end

# File lib/lingo/config.rb, line 107
def deprecate(old, new, obj = self, what = :option, ver = Version.next_minor)
  unless @deprecated[[source = obj.class.name.sub(/\ALingo::/, ''), old]]
    warn(
      "DEPRECATION WARNING: #{source} #{what} `#{old}' is deprecated " <<
      "and will be removed in Lingo #{ver}. Please use `#{new}' instead."
    )
  end
end

# File lib/lingo/config.rb, line 70
def get(key, *names)
  val = self[key]

  while name = names.shift
    case val
      when Hash  then val = val[name]
      when Array then val = val.find { |h|
        k, v = h.dup.shift
        break v if k == name
      }
      else break
    end
  end

  val
end

# File lib/lingo/config.rb, line 103
def quit(*args)
  @cli.send(:quit, *args)
end

# File lib/lingo/config.rb, line 95
def stderr
  @cli.stderr
end

# File lib/lingo/config.rb, line 87
def stdin
  @cli.stdin
end

# File lib/lingo/config.rb, line 91
def stdout
  @cli.stdout
end

# File lib/lingo/config.rb, line 57
def to_h
  { 'version' => VERSION }.merge(@opts)
end

# File lib/lingo/config.rb, line 99
def warn(*msg)
  stderr.puts(*msg)
end

# File lib/lingo/config.rb, line 118
def key_to_nodes(key)
  key.downcase.split('/')
end

# File lib/lingo/config.rb, line 126
def load_config(key, type = key.to_sym)
  file = Lingo.find(type, @opts[key]) { quit }
  instance_variable_set("@#{type}_file", file)

  File.open(file, encoding: ENCODING) { |f|
    @opts.update(Psych.safe_load(f.read)) }
rescue Psych::SyntaxError => err
  err.message << " (in #{file})"
  raise
end

# File lib/lingo/config.rb, line 122
def nodes_to_key(nodes)
  nodes.join('/')
end