Class: Richat::Shell

Inherits:
Object
  • Object
show all
Defined in:
lib/richat/shell.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Shell

Returns a new instance of Shell.



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# File 'lib/richat/shell.rb', line 7

def initialize(options = {})
  @chat_client = options[:chat_client]
  @logger = options[:logger]
  @user_role = Config.get("log", "user_role")
  @ai_role = Config.get("log", "ai_role")
  @system_role = Config.get("log", "system_role")
  @history_path = File.expand_path(Config.get("shell", "shell_history_file"))
  File.open(@history_path, 'w') {} unless File.exist?(@history_path)
  @user_color = ColorCode.get_code(Config.get("shell", "user_content_color"))
end

Instance Attribute Details

#ai_role ⇒ Object (readonly)

Returns the value of attribute ai_role.



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# File 'lib/richat/shell.rb', line 5

def ai_role
  @ai_role
end

#chat_client ⇒ Object (readonly)

Returns the value of attribute chat_client.



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# File 'lib/richat/shell.rb', line 5

def chat_client
  @chat_client
end

#history_path ⇒ Object (readonly)

Returns the value of attribute history_path.



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# File 'lib/richat/shell.rb', line 5

def history_path
  @history_path
end

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/richat/shell.rb', line 5

def logger
  @logger
end

#system_role ⇒ Object (readonly)

Returns the value of attribute system_role.



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# File 'lib/richat/shell.rb', line 5

def system_role
  @system_role
end

#user_color ⇒ Object (readonly)

Returns the value of attribute user_color.



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# File 'lib/richat/shell.rb', line 5

def user_color
  @user_color
end

#user_role ⇒ Object (readonly)

Returns the value of attribute user_role.



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# File 'lib/richat/shell.rb', line 5

def user_role
  @user_role
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/richat/shell.rb', line 18

def call
  enable_context_message = Config.get("shell", "enable_chat_context")
  enable_full_completion = Config.get("shell", "save_shell_history")

  if enable_full_completion
    Readline::HISTORY.push(*File.readlines(history_path).last(1000).map(&:chomp))
  end

  Readline.completion_proc = proc { |s| Readline::HISTORY&.grep(/^#{Regexp.escape(s)}/) }
  Readline.completion_append_character = ""

  default_prompt = Command.load_default_prompt
  if default_prompt.nil? || default_prompt.empty?
    context_messages = []
  else
    context_messages = [{ role: 'system', content: default_prompt }]
  end

  Command.print_welcome if Config.get("shell", "show_welcome_info")
  sys_cmd_mode = false

  begin
    while (user_content = Readline.readline(shell_prompt(sys_cmd_mode, enable_context_message), true))
      if user_content.empty?
        Readline::HISTORY&.pop
        next
      end

      File.open(history_path, 'a') { |f| f.puts(user_content) } if enable_full_completion

      if (code = Command.call(user_content, sys_cmd_mode))
        if code == Command::NEXT_CODE
          next
        elsif code == Command::EXIT_CODE
          break
        elsif code == Command::PROMPT_CHANGED_CODE
          context_messages = [{ role: 'system', content: Command.prompt }]
          next
        elsif code == Command::SYS_CMD_CODE
          sys_cmd_mode = true
          next
        elsif code == Command::SYS_CHAT_CODE
          sys_cmd_mode = false
          next
        elsif code == Command::TOGGLE_CONTEXT_CODE
          enable_context_message = !enable_context_message
          unless enable_context_message
            context_messages = Command.prompt_id ? [{ role: 'system', content: Command.prompt }] : []
          end
          Command.print_info("chat context mode " + (enable_context_message ? "enabled." : "disabled."))
          next
        elsif code == Command::RESET_CONTEXT_CODE
          context_messages = Command.prompt_id ? [{ role: 'system', content: Command.prompt }] : []
          Command.print_info("chat context reset.")
          next
        end
      end

      print "\e[0m"
      logger.call(role: user_role, content: user_content)
      response = ''

      context_messages << { role: 'user', content: user_content }

      chat_client.call(context_messages) do |chunk|
        response += chunk
        print chunk
      end

      if response.empty?
        Command.print_exception("Empty response from ChatGPT.")
        break
      end

      logger.call(role: ai_role, content: response)

      if enable_context_message
        context_messages << { role: 'assistant', content: response }
      else
        context_messages.pop
      end

      puts "\n\n"
    end
  rescue Interrupt
    if sys_cmd_mode
      Command.kill_process
      retry
    else
      Command.handle_exit
    end
  rescue SystemCallError => e
    puts e.message
    if sys_cmd_mode
      retry
    else
      Command.handle_exit
    end
  rescue Exception => e
    puts e.message
    Command.handle_exit
  end
end