class BotBaseModuleConversation

# File lib/botbase-module-conversation.rb, line 15
def initialize(host: nil, default_package: nil, default_job: nil, 
               callback: nil, debug: false)

  @bot, @rsc, @debug = callback, RSC.new(host), debug
  
  a = run(default_package, default_job)
  
  @doc = Rexle.new("<conversations/>")

  add_phrases(a)
  
end

# File lib/botbase-module-conversation.rb, line 28
def query(sender='user01', said, mode: :voicechat, echo_node: 'node')    
  
  found = @phrases.detect {|pattern, _|  said =~ /#{pattern}/i }
  
  if found then
    
    if @bot.log then
      @bot.log.info "BotBaseModuleConversation/query:" + 
          " found %s in response to %s" % [found.inspect, said]
    end
  
    _, rsc_command, context_tags = found
    package, job = rsc_command.split

    h = said.match(/#{found.first}/i).named_captures
    
    if @bot.log then
      @bot.log.info "BotBaseModuleConversation/query:" + 
          " h: "  + h.inspect
    end      
    
    r = run(package, job, h)
    
    a, tags = [], []

    a << if r.is_a? String then
      r
    elsif r.is_a? Hash then
      
      if r[:msg] then               
        tags.concat r[:tags].split
        r[:msg]
      else
        r
      end
      
    elsif r.is_a? Array then
      add_phrases(r)        
    end
    
    tags.concat context_tags.split if context_tags
    
    a << tags
    
    if @bot.log then
      @bot.log.info "BotBaseModuleConversation/query/result:" + 
          " result %s in response to %s" % [a.to_json, said]
    end      
    a.first
    
  else  
    no_match_found()
  end
  
end

# File lib/botbase-module-conversation.rb, line 86
def no_match_found()
  # do or say nothing
  ''    
end

# File lib/botbase-module-conversation.rb, line 93
def add_phrases(a)

  header = a.shift
  id, answer = header
  
  @doc.root.delete "conversations[@id='#{id}']"
  
  a2 = a.inject([]) do |r, x|
    r << {conversation: {user: x[0], bot: x[1], tags: x[2]}}
  end

  a3 = RexleBuilder.new({converstions: a2}, debug: false).to_a
  doc = Rexle.new(a3[3])
  doc.root.attributes['id'] = id
  @doc.root.add_element doc.root

  @phrases = @doc.root.xpath('//conversation').map do |e|
    %w(user bot tags).map {|x| e.text x}
  end    
  
  answer
end

# File lib/botbase-module-conversation.rb, line 116
def run(package, job, h={})
  
  if @bot.log then
    @bot.log.info "BotBaseModuleConversation/run: " + 
        "package: %s, method: %s, args: %s" % [package, job, h.inspect]
  end    
  
  @rsc.send(package.to_sym).method(job.to_sym).call(h)

end