Class: PatternRuby::Conversation

Inherits:
Object
  • Object
show all
Defined in:
lib/pattern_ruby/conversation.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(router) ⇒ Conversation

Returns a new instance of Conversation.



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# File 'lib/pattern_ruby/conversation.rb', line 5

def initialize(router)
  @router = router
  @context = nil
  @history = []
  @slots = {}
  @mutex = Mutex.new
end

Instance Attribute Details

#context ⇒ Object (readonly)

Returns the value of attribute context.



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# File 'lib/pattern_ruby/conversation.rb', line 3

def context
  @context
end

#history ⇒ Object (readonly)

Returns the value of attribute history.



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# File 'lib/pattern_ruby/conversation.rb', line 3

def history
  @history
end

#slots ⇒ Object (readonly)

Returns the value of attribute slots.



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# File 'lib/pattern_ruby/conversation.rb', line 3

def slots
  @slots
end

Instance Method Details

#clear_context ⇒ Object 



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# File 'lib/pattern_ruby/conversation.rb', line 59

def clear_context
  @mutex.synchronize { @context = nil }
end

#process(input) ⇒ Object 



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# File 'lib/pattern_ruby/conversation.rb', line 13

def process(input)
  @mutex.synchronize do
    result = @router.match(input, context: @context)

    if result.matched?
      # Merge new entities into accumulated slots
      result.entities.each do |k, v|
        @slots[k] = v unless v.nil?
      end

      # Build enriched result with accumulated slots
      result = MatchResult.new(
        intent: result.intent,
        entities: @slots.dup,
        pattern: result.pattern,
        score: result.score,
        input: result.input,
        response: result.response
      )
    elsif !@history.empty? && @slots.any?
      # Try to fill a missing slot from context
      last = @history.last
      if last&.matched?
        filled = try_slot_fill(input, last.intent)
        if filled
          result = MatchResult.new(
            intent: last.intent,
            entities: @slots.dup,
            pattern: last.pattern,
            score: last.score,
            input: input,
            response: last.response
          )
        end
      end
    end

    @history << result
    result
  end
end

#reset ⇒ Object 



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# File 'lib/pattern_ruby/conversation.rb', line 63

def reset
  @mutex.synchronize do
    @context = nil
    @history = []
    @slots = {}
  end
end

#set_context(ctx) ⇒ Object 



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# File 'lib/pattern_ruby/conversation.rb', line 55

def set_context(ctx)
  @mutex.synchronize { @context = ctx }
end