class Steep::Drivers::Annotations

def initialize(stdout:, stderr:)
  @stdout = stdout
  @stderr = stderr
  @command_line_patterns = []
end

def run
  project = load_config()
  loader = Services::FileLoader.new(base_dir: project.base_dir)
  project.targets.each do |target|
    Steep.logger.tagged "target=#{target.name}" do
      service = Services::SignatureService.load_from(target.new_env_loader(project: project))
      sigs = loader.load_changes(target.signature_pattern, changes: {})
      service.update(sigs)
      factory = AST::Types::Factory.new(builder: service.latest_builder)
      srcs = loader.load_changes(target.source_pattern, command_line_patterns, changes: {})
      srcs.each do |path, changes|
        text = changes.inject("") {|text, change| change.apply_to(text) }
        source = Source.parse(text, path: path, factory: factory)
        source.each_annotation.sort_by {|node, _| [node.loc.expression.begin_pos, node.loc.expression.end_pos] }.each do |node, annotations|
          loc = node.loc
          stdout.puts "#{path}:#{loc.line}:#{loc.column}:#{node.type}:\t#{node.loc.expression.source.lines.first}"
          annotations.each do |annotation|
            annotation.location or raise
            stdout.puts "  #{annotation.location.source}"
          end
        end
      end
    end
  end
  0
end