class Pry::Command::ShowInfo

# File lib/pry/commands/show_info.rb, line 7
def initialize(*)
  super

  @used_super = nil
end

# File lib/pry/commands/show_info.rb, line 118
def code_object_header(code_object, line_num)
  if code_object.real_method_object?
    method_header(code_object, line_num)

    # It sucks we have to test for both Pry::WrappedModule and WrappedModule::Candidate,
    # probably indicates a deep refactor needs to happen in those classes.
  elsif code_object.is_a?(Pry::WrappedModule) || code_object.is_a?(Pry::WrappedModule::Candidate)
    module_header(code_object, line_num)
  else
    ""
  end
end

# File lib/pry/commands/show_info.rb, line 55
def code_object_with_accessible_source(code_object)
  if code_object.is_a?(WrappedModule)
    candidate = code_object.candidates.find(&:source)
    if candidate
      return candidate
    else
      raise CommandError, no_definition_message if !valid_superclass?(code_object)

      @used_super = true
      code_object_with_accessible_source(code_object.super)
    end
  else
    code_object
  end
end

# File lib/pry/commands/show_info.rb, line 200
def complete(input)
  if input =~ /([^ ]*)#([a-z0-9_]*)\z/
    prefix, search = [$1, $2]
    methods = begin
                Pry::Method.all_from_class(binding.eval(prefix))
              rescue RescuableException
                return super
              end
    methods.map do |method|
      [prefix, method.name].join('#') if method.name.start_with?(search)
    end.compact
  else
    super
  end
end

# File lib/pry/commands/show_info.rb, line 75
def content_and_header_for_code_object(code_object)
  header(code_object) << content_for(code_object)
end

# File lib/pry/commands/show_info.rb, line 79
def content_and_headers_for_all_module_candidates(mod)
  result = "Found #{mod.number_of_candidates} candidates for `#{mod.name}` definition:\n"
  mod.number_of_candidates.times do |v|
    candidate = mod.candidate(v)
    begin
      result << "\nCandidate #{v + 1}/#{mod.number_of_candidates}: #{candidate.source_file} @ line #{candidate.source_line}:\n"
      content = content_for(candidate)

      result << "Number of lines: #{content.lines.count}\n\n" << content
    rescue Pry::RescuableException
      result << "\nNo content found.\n"
      next
    end
  end
  result
end

# File lib/pry/commands/show_info.rb, line 192
def file_and_line_for(code_object)
  if code_object.module_with_yard_docs?
    [code_object.yard_file, code_object.yard_line]
  else
    [code_object.source_file, start_line_for(code_object)]
  end
end

# File lib/pry/commands/show_info.rb, line 102
def header(code_object)
  file_name, line_num = file_and_line_for(code_object)
  content = content_for(code_object)

  h = "\n#{bold('From:')} #{file_name} "
  h << code_object_header(code_object, line_num)
  h << "\n#{bold('Number of lines:')} " << "#{content.lines.count}\n\n"
  h << bold('** Warning:') << " Cannot find code for #{@original_code_object.nonblank_name}. Showing superclass #{code_object.nonblank_name} instead. **\n\n" if @used_super

  if content.lines.none?
    h << bold('** Warning:') << " Cannot find code for '#{code_object.name}' (source_location is nil)"
  end

  h
end

# File lib/pry/commands/show_info.rb, line 161
def header_options
  {
    owner: true,
    visibility: true,
    signature: nil
  }
end

# File lib/pry/commands/show_info.rb, line 131
def method_header(code_object, line_num)
  h = ""
  h << (code_object.c_method? ? "(C Method):" : "@ line #{line_num}:")
  h << method_sections(code_object)[:owner]
  h << method_sections(code_object)[:visibility]
  h << method_sections(code_object)[:signature]
  h
end

# File lib/pry/commands/show_info.rb, line 153
def method_sections(code_object)
  {
    owner: "\n#{bold("Owner:")} #{code_object.owner || "N/A"}\n",
    visibility: "#{bold("Visibility:")} #{code_object.visibility}",
    signature: "\n#{bold("Signature:")} #{code_object.signature}"
  }.merge(header_options) { |key, old, new| (new && old).to_s }
end

# File lib/pry/commands/show_info.rb, line 140
def module_header(code_object, line_num)
  h = ""
  h << "@ line #{line_num}:\n"
  h << bold(code_object.module? ? "Module" : "Class")
  h << " #{bold('name:')} #{code_object.nonblank_name}"

  if code_object.number_of_candidates > 1
    h << (bold("\nNumber of monkeypatches: ") << code_object.number_of_candidates.to_s)
    h << ". Use the `-a` option to display all available monkeypatches"
  end
  h
end

# File lib/pry/commands/show_info.rb, line 96
def no_definition_message
  "Couldn't locate a definition for #{obj_name}"
end

# File lib/pry/commands/show_info.rb, line 173
def obj_name
  @obj_name ||= args.empty? ? nil : args.join(' ')
end

# File lib/pry/commands/show_info.rb, line 13
def options(opt)
  opt.on :s, :super, "Select the 'super' method. Can be repeated to traverse the ancestors", as: :count
  opt.on :l, "line-numbers", "Show line numbers"
  opt.on :b, "base-one", "Show line numbers but start numbering at 1 (useful for `amend-line` and `play` commands)"
  opt.on :a, :all, "Show all definitions and monkeypatches of the module/class"
end

# File lib/pry/commands/show_info.rb, line 20
def process
  code_object = Pry::CodeObject.lookup(obj_name, _pry_, super: opts[:super])
  raise CommandError, no_definition_message if !code_object

  @original_code_object = code_object

  if !obj_name && code_object.c_module? && !opts[:all]
    result = "Warning: You're inside an object, whose class is defined by means\n" +
             "         of the C Ruby API. Pry cannot display the information for\n" +
             "         this class."
    if code_object.candidates.any?
      result += "\n         However, you can view monkey-patches applied to this class.\n" +
                "         Just execute the same command with the '--all' switch."
    end
  elsif show_all_modules?(code_object)
    # show all monkey patches for a module

    result = content_and_headers_for_all_module_candidates(code_object)
  else
    # show a specific code object
    co = code_object_with_accessible_source(code_object)
    result = content_and_header_for_code_object(co)
  end

  set_file_and_dir_locals(code_object.source_file)
  _pry_.pager.page result
end

# File lib/pry/commands/show_info.rb, line 169
def show_all_modules?(code_object)
  code_object.is_a?(Pry::WrappedModule) && opts.present?(:all)
end

# File lib/pry/commands/show_info.rb, line 181
def start_line_for(code_object)
  if opts.present?(:'base-one')
    1
  else
    code_object.source_line || 1
  end
end

# File lib/pry/commands/show_info.rb, line 177
def use_line_numbers?
  opts.present?(:b) || opts.present?(:l)
end

# File lib/pry/commands/show_info.rb, line 71
def valid_superclass?(code_object)
  code_object.super && code_object.super.wrapped != Object
end