class RSpec::Core::Formatters::ExceptionPresenter

def add_shared_group_lines(lines, colorizer)
  return lines if @skip_shared_group_trace
  example.metadata[:shared_group_inclusion_backtrace].each do |frame|
    lines << colorizer.wrap(frame.description, RSpec.configuration.default_color)
  end
  lines
end

def colorized_formatted_backtrace(colorizer=::RSpec::Core::Formatters::ConsoleCodes)
  formatted_backtrace.map do |backtrace_info|
    colorizer.wrap "# #{backtrace_info}", RSpec.configuration.detail_color
  end
end

def colorized_message_lines(colorizer=::RSpec::Core::Formatters::ConsoleCodes)
  add_shared_group_lines(failure_lines, colorizer).map do |line|
    colorizer.wrap line, message_color
  end
end

def description_and_detail(colorizer, indentation)
  detail = detail_formatter.call(example, colorizer, indentation)
  return (description || detail) unless description && detail
  "#{description}\n#{indentation}#{detail}"
end

def encoded_string(string)
  RSpec::Support::EncodedString.new(string, Encoding.default_external)
end

def encoded_string(string)
  RSpec::Support::EncodedString.new(string)
end

def encoding_of(string)
  string.encoding
end

def encoding_of(_string)
end

def exception_class_name
  name = exception.class.name.to_s
  name = "(anonymous error class)" if name == ''
  name
end

def failure_lines
  @failure_lines ||=
    begin
      lines = []
      lines << failure_slash_error_line unless (description == failure_slash_error_line)
      lines << "#{exception_class_name}:" unless exception_class_name =~ /RSpec/
      encoded_string(exception.message.to_s).split("\n").each do |line|
        lines << "  #{line}"
      end
      lines
    end
end

def failure_slash_error_line
  @failure_slash_error_line ||= "Failure/Error: #{read_failed_line.strip}"
end

def find_failed_line
  example_path = example.metadata[:absolute_file_path].downcase
  exception.backtrace.find do |line|
    next unless (line_path = line[/(.+?):(\d+)(|:\d+)/, 1])
    File.expand_path(line_path).downcase == example_path
  end
end

def formatted_backtrace
  backtrace_formatter.format_backtrace(exception.backtrace, example.metadata)
end

def formatted_message_and_backtrace(colorizer, indentation)
  lines = colorized_message_lines(colorizer) + colorized_formatted_backtrace(colorizer)
  formatted = ""
  lines.each do |line|
    formatted << RSpec::Support::EncodedString.new("#{indentation}#{line}\n", encoding_of(formatted))
  end
  formatted
end

def fully_formatted(failure_number, colorizer=::RSpec::Core::Formatters::ConsoleCodes)
  alignment_basis = "#{' ' * @indentation}#{failure_number}) "
  indentation = ' ' * alignment_basis.length
  "\n#{alignment_basis}#{description_and_detail(colorizer, indentation)}" \
  "\n#{formatted_message_and_backtrace(colorizer, indentation)}" \
  "#{extra_detail_formatter.call(failure_number, colorizer, indentation)}"
end

def initialize(exception, example, options={})
  @exception               = exception
  @example                 = example
  @message_color           = options.fetch(:message_color)          { RSpec.configuration.failure_color }
  @description             = options.fetch(:description_formatter)  { Proc.new { example.full_description } }.call(self)
  @detail_formatter        = options.fetch(:detail_formatter)       { Proc.new {} }
  @extra_detail_formatter  = options.fetch(:extra_detail_formatter) { Proc.new {} }
  @backtrace_formatter     = options.fetch(:backtrace_formatter)    { RSpec.configuration.backtrace_formatter }
  @indentation             = options.fetch(:indentation, 2)
  @skip_shared_group_trace = options.fetch(:skip_shared_group_trace, false)
  @failure_lines           = options[:failure_lines]
end

def message_lines
  add_shared_group_lines(failure_lines, Notifications::NullColorizer)
end

def read_failed_line
  matching_line = find_failed_line
  unless matching_line
    return "Unable to find matching line from backtrace"
  end
  file_path, line_number = matching_line.match(/(.+?):(\d+)(|:\d+)/)[1..2]
  if File.exist?(file_path)
    File.readlines(file_path)[line_number.to_i - 1] ||
      "Unable to find matching line in #{file_path}"
  else
    "Unable to find #{file_path} to read failed line"
  end
rescue SecurityError
  "Unable to read failed line"
end