from chatterbot import ChatBot
from chatterbot.trainers import ChatterBotCorpusTrainer
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.uix.textinput import TextInput

class ChatBotApp(App):
    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        self.chatbot = ChatBot('ChatBot')
        self.trainer = ChatterBotCorpusTrainer(self.chatbot)
        self.trainer.train("chatterbot.corpus.english.greetings",
                          "chatterbot.corpus.english.conversations")

    def build(self):
        box_layout = BoxLayout(orientation='vertical')
        self.input_field = TextInput(multiline=False, hint_text="Tu mensaje...")
        self.output_area = Label(halign='left', markup=True)
        box_layout.add_widget(self.input_field)
        box_layout.add_widget(self.output_area)
        self.input_field.bind(on_text_validate=self.send_message)
        return box_layout

    def send_message(self, instance):
        input_text = instance.text
        output_text = self.get_response(input_text)
        self.update_display(input_text, output_text)
        self.input_field.text = ""

    def get_response(self, input_text):
        try:
            response = self.chatbot.get_response(input_text)
        except Exception as e:
            response = f"Lo siento, hubo un error: {str(e)}"
        finally:
            return str(response)

    def update_display(self, input_text, output_text):
        self.output_area.text += f"\n<b>{input_text}</b>\n{output_text}"

if __name__ == "__main__":
    ChatBotApp().run()