Class: Facebook::Interface::Interface

Inherits:
Charyf::Interface::Base
  • Object
show all
Defined in:
lib/facebook/interface/interface.rb

Defined Under Namespace

Classes: InvalidConfiguration

Class Method Summary collapse

Class Method Details

._storage ⇒ Object 



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# File 'lib/facebook/interface/interface.rb', line 121

def _storage
  @storage ||= Charyf.application.storage_provider.get_for(self)
end

.init ⇒ Object 



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# File 'lib/facebook/interface/interface.rb', line 53

def init
  validate
  @initialized = true

  # Facebook::Messenger::Subscriptions.subscribe(access_token: ENV['ACCESS_TOKEN'])
  # TODO - temporal error with FB platform - old API is not working
  HTTParty.post 'https://graph.facebook.com/v2.9/me/subscribed_apps', query: { access_token: ENV["ACCESS_TOKEN"] }


  Facebook::Messenger::Bot.on :message do |message|

    # message.id          # => 'mid.1457764197618:41d102a3e1ae206a38'
    # message.sender      # => { 'id' => '1008372609250235' }
    # message.seq         # => 73
    # message.sent_at     # => 2016-04-22 21:30:36 +0200
    # message.text        # => 'Hello, bot!'
    # message.attachments # => [ { 'type' => 'image', 'payload' => { 'url' => 'https://www.example.com/1.jpg' } } ]

    # message.reply(text: "Hello, i was still not configured to reply to your messages. I will keep responding with this meaningless bullshit " +
    # "untill you find some time to finally finish me.")

    # TODO errors in this thread are lost :/
    Thread.new do
      # Mark the message as seen once bot gets the message
      message.mark_seen

      sender = message.sender['id']
      request = Charyf::Engine::Request.new(self, sender, message.id)

      request.text = message.text

      # TODO support more formats
      unless message.text && !message.text.empty?
        message.reply(text: 'Only text is supported in this version.')
      end

      return if repost?(message)

      self.dispatcher.dispatch_async(request)
    end.abort_on_exception = true
  end

end

.reply(conversation_id, message_id, response) ⇒ Object 



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# File 'lib/facebook/interface/interface.rb', line 14

def reply(conversation_id, message_id, response)
  Facebook::Messenger::Bot.deliver({
                                       recipient: {
                                           id: conversation_id
                                       },
                                       message: {
                                           text: response.text
                                       },
                                       message_type: 'RESPONSE'.freeze
                                   }, access_token: ENV['ACCESS_TOKEN'])
end

.repost?(message) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/facebook/interface/interface.rb', line 105

def repost?(message)
  messages = _storage.get(message.sender['id']) || []

  repost = messages.include? message.id

  messages.push message.id

  if messages.size > 10
    messages.delete_at(0)
  end

  _storage.store(message.sender['id'], messages)

  repost
end

.start ⇒ Object 



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# File 'lib/facebook/interface/interface.rb', line 26

def start
  init unless @initialized
  return false if @thread && @thread.alive?

  @thread = Thread.new do
    Rack::Handler::WEBrick.run(
        Facebook::Messenger::Server,
        Port: Facebook::Interface.config.port, Host: Facebook::Interface.config.host
    )
  end
  @thread.abort_on_exception = true

  # Currently this call blocks to check if the interface starts
  sleep 1
  @thread.join unless @thread.alive?
end

.stop ⇒ Object 



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# File 'lib/facebook/interface/interface.rb', line 43

def stop
  @thread.kill if @thread
end

.terminate ⇒ Object

If stop does not finish till required timeout Terminate is called



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# File 'lib/facebook/interface/interface.rb', line 49

def terminate
  @thread.terminate if @thread
end

.validate ⇒ Object 



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# File 'lib/facebook/interface/interface.rb', line 97

def validate
  unless ENV['ACCESS_TOKEN'] && ENV['APP_SECRET'] && ENV['VERIFY_TOKEN']
    raise InvalidConfiguration.new("ENV variables are not properly configured. Ensure that ENV['ACCESS_TOKEN'], " +
                                       "ENV['APP_SECRET'] and ENV['VERIFY_TOKEN'] are set."
    )
  end
end