# typed: strict
# frozen_string_literal: true

require "benchmark"

module Packwerk
  module Formatters
    class ProgressFormatter
      extend T::Sig

      sig { params(out: T.any(StringIO, IO), style: OutputStyle).void }
      def initialize(out, style: OutputStyles::Plain.new)
        @out = out
        @style = style
      end

      sig { params(block: T.proc.void).void }
      def started_validation(&block)
        start_validation

        execution_time = Benchmark.realtime(&block)
        finished(execution_time)
      end

      sig { params(target_files: FilesForProcessing::RelativeFileSet, block: T.proc.void).void }
      def started_inspection(target_files, &block)
        start_inspection(target_files)

        execution_time = Benchmark.realtime(&block)
        finished(execution_time)
      end

      sig { void }
      def mark_as_inspected
        @out.print(".")
      end

      sig { void }
      def mark_as_failed
        @out.print("#{@style.error}E#{@style.reset}")
      end

      sig { void }
      def interrupted
        @out.puts
        @out.puts("Manually interrupted. Violations caught so far are listed below:")
      end

      private

      sig { params(execution_time: Float).void }
      def finished(execution_time)
        @out.puts
        @out.puts("📦 Finished in #{execution_time.round(2)} seconds")
      end

      sig { void }
      def start_validation
        @out.puts("📦 Packwerk is running validation...")
      end

      sig { params(target_files: FilesForProcessing::RelativeFileSet).void }
      def start_inspection(target_files)
        files_size = target_files.size
        files_string = "file".pluralize(files_size)
        @out.puts("📦 Packwerk is inspecting #{files_size} #{files_string}")
      end
    end
  end
end