class SourceReaders::InspecReader

def self.resolve(target)
  return new(target, "inspec.yml") if target.files.include?("inspec.yml")
  nil
end

def find_all(regexp)
  @target.files.grep(regexp)
end

def initialize(target, metadata_source)
  @target     = target
  @metadata   = load_metadata(metadata_source)
  @tests      = load_tests
  @libraries  = load_libs
  @data_files = load_data_files
  @readme     = load_readme
end

def load_all(regexp)
  find_all(regexp)
    .map { |path| file = @target.read(path); [path, file] if file }
    .compact
    .to_h
end

def load_data_files
  load_all(%r{^files/})
end

def load_libs
  load_all(%r{^libraries/.*\.rb$})
end

def load_metadata(metadata_source)
  @metadata_src = @target.read(metadata_source)
  Inspec::Metadata.from_ref(
    metadata_source,
    @metadata_src,
    nil
  )
rescue Psych::SyntaxError => e
  raise "Unable to parse inspec.yml: line #{e.line}, #{e.problem} #{e.context}"
rescue => e
  raise "Unable to parse #{metadata_source}: #{e.class} -- #{e.message}"
end

def load_readme
  load_all(/README.md/)
end

def load_tests
  load_all(%r{^controls/.*\.rb$})
end