class Cucumber::Formatter::BacktraceFilter

def backtrace_filter_patterns
  Regexp.new(@backtrace_filters.join('|'))
end

def dynamic_ruby_paths
  [].tap do |paths|
    paths << RbConfig::CONFIG['rubyarchdir'] if RbConfig::CONFIG['rubyarchdir']
    paths << RbConfig::CONFIG['rubylibdir'] if RbConfig::CONFIG['rubylibdir']
    paths << 'org/jruby/' if ::Cucumber::JRUBY
    paths << '<internal:' if RUBY_ENGINE == 'truffleruby'
  end
end

def exception
  return @exception if ::Cucumber.use_full_backtrace
  backtrace = @exception.backtrace.map { |line| line.gsub(pwd_pattern, './') }
  filtered = backtrace.reject { |line| line.match?(backtrace_filter_patterns) }
  if ::ENV['CUCUMBER_TRUNCATE_OUTPUT']
    filtered = filtered.map do |line|
      # Strip off file locations
      match = regexp_filter.match(line)
      match ? match[1] : line
    end
  end
  @exception.tap { |error_object| error_object.set_backtrace(filtered) }
end

def initialize(exception)
  @exception = exception
  @backtrace_filters = standard_ruby_paths + dynamic_ruby_paths
end

def pwd_pattern
  /#{::Regexp.escape(::Dir.pwd)}\//m
end

def regexp_filter
  ruby_greater_than_three_four? ? three_four_filter : three_three_filter
end

def ruby_greater_than_three_four?
  RUBY_VERSION.to_f >= 3.4
end

def standard_ruby_paths
  %w[
    /vendor/rails
    lib/cucumber
    bin/cucumber:
    lib/rspec
    gems/
    site_ruby/
    minitest
    test/unit
    .gem/ruby
    bin/bundle
    rdebug-ide
  ]
end

def three_four_filter
  /(.*):in '/
end

def three_three_filter
  /(.*):in `/
end