class Thor

def banner(command, namespace = nil, subcommand = false)
  "#{basename} #{command.formatted_usage(self, $thor_runner, subcommand)}"
end

def baseclass #:nodoc:
  Thor
end

def check_unknown_options!(options = {})
  @check_unknown_options ||= {}
  options.each do |key, value|
    if value
      @check_unknown_options[key] = Array(value)
    else
      @check_unknown_options.delete(key)
    end
  end
  @check_unknown_options
end

def check_unknown_options?(config) #:nodoc:
  options = check_unknown_options
  return false unless options
  command = config[:current_command]
  return true unless command
  name = command.name
  if subcommands.include?(name)
    false
  elsif options[:except]
    !options[:except].include?(name.to_sym)
  elsif options[:only]
    options[:only].include?(name.to_sym)
  else
    true
  end
end

def command_help(shell, command_name)
  meth = normalize_command_name(command_name)
  command = all_commands[meth]
  handle_no_command_error(meth) unless command
  shell.say "Usage:"
  shell.say "  #{banner(command)}"
  shell.say
  class_options_help(shell, nil => command.options.values)
  if command.long_description
    shell.say "Description:"
    shell.print_wrapped(command.long_description, :indent => 2)
  else
    shell.say command.description
  end
end

def create_command(meth) #:nodoc:
  @usage ||= nil
  @desc ||= nil
  @long_desc ||= nil
  @disable_class_options ||= nil
  if @usage && @desc
    base_class = @hide ? Thor::HiddenCommand : Thor::Command
    commands[meth] = base_class.new(meth, @desc, @long_desc, @usage, method_options, @disable_class_options)
    @usage, @desc, @long_desc, @method_options, @hide, @disable_class_options = nil
    true
  elsif all_commands[meth] || meth == "method_missing"
    true
  else
    puts "[WARNING] Attempted to create command #{meth.inspect} without usage or description. " \
         "Call desc if you want this method to be available as command or declare it inside a " \
         "no_commands{} block. Invoked from #{caller[1].inspect}."
    false
  end
end

def default_command(meth = nil)
  if meth
    @default_command = meth == :none ? "help" : meth.to_s
  else
    @default_command ||= from_superclass(:default_command, "help")
  end
end

def desc(usage, description, options = {})
  if options[:for]
    command = find_and_refresh_command(options[:for])
    command.usage = usage             if usage
    command.description = description if description
  else
    @usage = usage
    @desc = description
    @hide = options[:hide] || false
  end
end

def disable_class_options
  @disable_class_options = true
end

def dispatch(meth, given_args, given_opts, config) #:nodoc: # rubocop:disable MethodLength
  meth ||= retrieve_command_name(given_args)
  command = all_commands[normalize_command_name(meth)]
  if !command && config[:invoked_via_subcommand]
    # We're a subcommand and our first argument didn't match any of our
    # commands. So we put it back and call our default command.
    given_args.unshift(meth)
    command = all_commands[normalize_command_name(default_command)]
  end
  if command
    args, opts = Thor::Options.split(given_args)
    if stop_on_unknown_option?(command) && !args.empty?
      # given_args starts with a non-option, so we treat everything as
      # ordinary arguments
      args.concat opts
      opts.clear
    end
  else
    args = given_args
    opts = nil
    command = dynamic_command_class.new(meth)
  end
  opts = given_opts || opts || []
  config[:current_command] = command
  config[:command_options] = command.options
  instance = new(args, opts, config)
  yield instance if block_given?
  args = instance.args
  trailing = args[Range.new(arguments.size, -1)]
  instance.invoke_command(command, trailing || [])
end

def dynamic_command_class #:nodoc:
  Thor::DynamicCommand
end

def find_command_possibilities(meth)
  len = meth.to_s.length
  possibilities = all_commands.merge(map).keys.select { |n| meth == n[0, len] }.sort
  unique_possibilities = possibilities.map { |k| map[k] || k }.uniq
  if possibilities.include?(meth)
    [meth]
  elsif unique_possibilities.size == 1
    unique_possibilities
  else
    possibilities
  end
end

def help(shell, subcommand = false)
  list = printable_commands(true, subcommand)
  Thor::Util.thor_classes_in(self).each do |klass|
    list += klass.printable_commands(false)
  end
  list.sort! { |a, b| a[0] <=> b[0] }
  if defined?(@package_name) && @package_name
    shell.say "#{@package_name} commands:"
  else
    shell.say "Commands:"
  end
  shell.print_table(list, :indent => 2, :truncate => true)
  shell.say
  class_options_help(shell)
end

def help(command = nil, subcommand = false)
  if command
    if self.class.subcommands.include? command
      self.class.subcommand_classes[command].help(shell, true)
    else
      self.class.command_help(shell, command)
    end
  else
    self.class.help(shell, subcommand)
  end
end

def initialize_added #:nodoc:
  class_options.merge!(method_options)
  @method_options = nil
end

def long_desc(long_description, options = {})
  if options[:for]
    command = find_and_refresh_command(options[:for])
    command.long_description = long_description if long_description
  else
    @long_desc = long_description
  end
end

def map(mappings = nil)
  @map ||= from_superclass(:map, {})
  if mappings
    mappings.each do |key, value|
      if key.respond_to?(:each)
        key.each { |subkey| @map[subkey] = value }
      else
        @map[key] = value
      end
    end
  end
  @map
end

def method_option(name, options = {})
  scope = if options[:for]
    find_and_refresh_command(options[:for]).options
  else
    method_options
  end
  build_option(name, options, scope)
end

def method_options(options = nil)
  @method_options ||= {}
  build_options(options, @method_options) if options
  @method_options
end

def normalize_command_name(meth) #:nodoc:
  return default_command.to_s.tr("-", "_") unless meth
  possibilities = find_command_possibilities(meth)
  raise AmbiguousTaskError, "Ambiguous command #{meth} matches [#{possibilities.join(', ')}]" if possibilities.size > 1
  if possibilities.empty?
    meth ||= default_command
  elsif map[meth]
    meth = map[meth]
  else
    meth = possibilities.first
  end
  meth.to_s.tr("-", "_") # treat foo-bar as foo_bar
end

def package_name(name, _ = {})
  @package_name = name.nil? || name == "" ? nil : name
end

def printable_commands(all = true, subcommand = false)
  (all ? all_commands : commands).map do |_, command|
    next if command.hidden?
    item = []
    item << banner(command, false, subcommand)
    item << (command.description ? "# #{command.description.gsub(/\s+/m, ' ')}" : "")
    item
  end.compact
end

def register(klass, subcommand_name, usage, description, options = {})
  if klass <= Thor::Group
    desc usage, description, options
    define_method(subcommand_name) { |*args| invoke(klass, args) }
  else
    desc usage, description, options
    subcommand subcommand_name, klass
  end
end

def retrieve_command_name(args) #:nodoc:
  meth = args.first.to_s unless args.empty?
  args.shift if meth && (map[meth] || meth !~ /^\-/)
end

def stop_on_unknown_option #:nodoc:
  @stop_on_unknown_option ||= Set.new
end

def stop_on_unknown_option!(*command_names)
  stop_on_unknown_option.merge(command_names)
end

def stop_on_unknown_option?(command) #:nodoc:
  command && stop_on_unknown_option.include?(command.name.to_sym)
end

def subcommand(subcommand, subcommand_class)
  subcommands << subcommand.to_s
  subcommand_class.subcommand_help subcommand
  subcommand_classes[subcommand.to_s] = subcommand_class
  define_method(subcommand) do |*args|
    args, opts = Thor::Arguments.split(args)
    invoke_args = [args, opts, {:invoked_via_subcommand => true, :class_options => options}]
    invoke_args.unshift "help" if opts.delete("--help") || opts.delete("-h")
    invoke subcommand_class, *invoke_args
  end
end

def subcommand_classes
  @subcommand_classes ||= {}
end

def subcommand_help(cmd)
  desc "help [COMMAND]", "Describe subcommands or one specific subcommand"
  class_eval "
    def help(command = nil, subcommand = true); super; end
end

def subcommands
  @subcommands ||= from_superclass(:subcommands, [])
end