module Streams
  module Overlay
    # Etichetta stato broadcast (stessa logica della pagina live / badge HTML).
    class BadgeLabel
      Result = Struct.new(:text, :background, :foreground, keyword_init: true)

      def self.for(session)
        new(session).call
      end

      def initialize(session)
        @session = session
      end

      def call
        return Result.new(text: "DIRETTA CHIUSA", background: "#374151", foreground: "#dddddd") if @session.terminal?
        return Result.new(text: "IN PAUSA", background: "#455a64", foreground: "#ffffff") if @session.paused?

        if publisher_online? || (@session.live? && !@session.paused?)
          return Result.new(text: "IN ONDA", background: "#2e7d32", foreground: "#ffffff")
        end

        if path_has_output?
          if @session.reconnecting?
            return Result.new(text: "RICONNESSIONE", background: "#f57c00", foreground: "#ffffff")
          end
          if @session.connecting?
            return Result.new(text: "CONNECTING", background: "#f57c00", foreground: "#ffffff")
          end
          return Result.new(text: "COPERTINA", background: "#455a64", foreground: "#ffffff")
        end

        Result.new(text: "IN ATTESA", background: "#455a64", foreground: "#ffffff")
      end

      private

      def path_info
        @path_info ||= Mediamtx::Client.new.list_paths.find { |i| i["name"] == @session.mediamtx_path_name }
      end

      def publisher_online?
        info = path_info
        info && info["online"]
      end

      def path_has_output?
        info = path_info
        info && (info["ready"] || info["available"] || info["online"])
      end
    end
  end
end