# typed: true
# frozen_string_literal: true

require "utils/tty"

module GitHub
  # Helper functions for interacting with GitHub Actions.
  #
  # @api private
  module Actions
    extend T::Sig

    sig { params(string: String).returns(String) }
    def self.escape(string)
      # See https://github.community/t/set-output-truncates-multiline-strings/16852/3.
      string.gsub("%", "%25")
            .gsub("\n", "%0A")
            .gsub("\r", "%0D")
    end

    # Helper class for formatting annotations on GitHub Actions.
    class Annotation
      extend T::Sig

      sig { params(path: T.any(String, Pathname)).returns(T.nilable(Pathname)) }
      def self.path_relative_to_workspace(path)
        workspace = Pathname(ENV.fetch("GITHUB_WORKSPACE", Dir.pwd)).realpath
        path = Pathname(path)
        return path unless path.exist?

        path.realpath.relative_path_from(workspace)
      end

      sig {
        params(
          type: Symbol, message: String,
          file: T.nilable(T.any(String, Pathname)), line: T.nilable(Integer), column: T.nilable(Integer)
        ).void
      }
      def initialize(type, message, file: nil, line: nil, column: nil)
        raise ArgumentError, "Unsupported type: #{type.inspect}" unless [:warning, :error].include?(type)

        @type = type
        @message = Tty.strip_ansi(message)
        @file = self.class.path_relative_to_workspace(file) if file
        @line = Integer(line) if line
        @column = Integer(column) if column
      end

      sig { returns(String) }
      def to_s
        metadata = @type.to_s

        if @file
          metadata << " file=#{Actions.escape(@file.to_s)}"

          if @line
            metadata << ",line=#{@line}"
            metadata << ",col=#{@column}" if @column
          end
        end

        "::#{metadata}::#{Actions.escape(@message)}"
      end

      # An annotation is only relevant if the corresponding `file` is relative to
      # the `GITHUB_WORKSPACE` directory or if no `file` is specified.
      sig { returns(T::Boolean) }
      def relevant?
        return true if @file.nil?

        @file.descend.next.to_s != ".."
      end
    end
  end
end