Class: Kward::RPC::PromptBridge

Inherits:
Object
  • Object
show all
Defined in:
lib/kward/rpc/prompt_bridge.rb

Constant Summary collapse

MIN_QUESTIONS = 
1
MAX_QUESTIONS = 
4
MIN_OPTIONS = 
2
MAX_OPTIONS = 
4

Instance Method Summary collapse

Constructor Details

#initialize(server:, session_id:) ⇒ PromptBridge

Returns a new instance of PromptBridge.



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# File 'lib/kward/rpc/prompt_bridge.rb', line 12

def initialize(server:, session_id:)
  @server = server
  @session_id = session_id
  @mutex = Mutex.new
  @condition = ConditionVariable.new
  @answers = {}
  @pending_requests = {}
end

Instance Method Details

#answer(request_id, answers) ⇒ Object 



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# File 'lib/kward/rpc/prompt_bridge.rb', line 44

def answer(request_id, answers)
  @mutex.synchronize do
    request_id = request_id.to_s
    return unless @pending_requests.key?(request_id)
    return if @answers.key?(request_id)

    @answers[request_id] = normalize_answers(answers)
    @condition.broadcast
  end
end

#ask_user_question(questions, cancellation: nil) ⇒ Object 



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# File 'lib/kward/rpc/prompt_bridge.rb', line 21

def ask_user_question(questions, cancellation: nil)
  questions = validate_questions(questions)
  request_id = SecureRandom.uuid
  @mutex.synchronize { @pending_requests[request_id] = true }
  cancellation&.on_cancel { cancel_request(request_id) }
  unless cancellation&.cancelled?
    @server.notify("ui/question", {
      sessionId: @session_id,
      questionRequestId: request_id,
      questions: questions
    })
  end

  @mutex.synchronize do
    @condition.wait(@mutex) until @answers.key?(request_id)
    answer = @answers.delete(request_id)
    @pending_requests.delete(request_id)
    return nil if answer.nil?

    answer
  end
end

#cancel_request(request_id) ⇒ Object 



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# File 'lib/kward/rpc/prompt_bridge.rb', line 55

def cancel_request(request_id)
  @mutex.synchronize do
    request_id = request_id.to_s
    return unless @pending_requests.key?(request_id)
    return if @answers.key?(request_id)

    @answers[request_id] = nil
    @condition.broadcast
  end
end