#!/usr/bin/env python3
# -*- coding: utf-8 -*-

# Libraries
import paho.mqtt.client as mqtt
import json
from time import sleep
from logic import tts, read_script
from config import characters, directions


# === SETUP OF MQTT PART 1 ===

# Location of the MQTT server
HOST = 'localhost'
PORT = 1883

# Subscribe to relevant MQTT topics
def on_connect(client, userdata, flags, rc):
    print("Connected to {0} with result code {1}".format(HOST, rc))
    client.subscribe('hermes/intent/jocavdh:play_intro_act') # to check for intent to play the act
    client.subscribe('hermes/intent/jocavdh:question_continue_act') # to check for the intent to continue to the next act
    client.subscribe("hermes/nlu/intentNotRecognized") # to check if the speaker didn't understand the user, trigger for fallback function


# === FUNCTIONS THAT ARE TRIGGERED WHEN AN INTENT IS DETECTED ===

# Function which is triggered when the intent play_intro_act is activated
def on_play_intro_act(client,data,msg):
    data = json.loads(msg.payload)
    sessionId = data['sessionId']

    script_lines = read_script('play_scripts/demo.txt') # pick a random introduction script

    for character, line, direction in script_lines:
        input_text = line
        voice = characters.get(character)[0]
        speaker = characters.get(character)[1]
        #speaker = 'default'
        # Some way to do something with the stage directions will come here
        action = directions.get(direction[0])
        tts(voice, input_text, speaker) 
        print('say this sentence')

        # if action == 'start_interrogation':
        #     call(["python3", "play_interrogation_act.py"])


        if action == 'listen_audience':
            print('listen to the audience')

            client.publish('hermes/dialogueManager/endSession', json.dumps({
                'sessionId': sessionId
            })) 

            client.publish('hermes/dialogueManager/startSession', json.dumps({
                'siteId': 'default',
                'init': {'type': 'action', 'canBeEnqueued': True, 'intentFilter':['jocavdh:question_continue_act']}
            }))

            break

# Function which is triggered when the intent question_continue_act is activated
def on_question_continue_act(client,data,msg):

    data = json.loads(msg.payload)
    answer_value = data['slots'][0]['value']['value']
    print(answer_value)

    voice = "dfki-obadiah"
    speaker = 'default'

    if answer_value == 'no':
        print('no')

    if answer_value == 'yes':
        call(["python3", "play_interrogation_act.py"])         

        print('The play is over.')

# Function which is triggered when no intent is recognized
def onIntentNotRecognized(client, data, msg):
    data = json.loads(msg.payload)
    line_number = 1
    print('We continue on line')
    print(line_number)

    on_introduce(client,data,msg, line_number)


# === SETUP OF MQTT PART 2 ===

# Initialise MQTT client
client = mqtt.Client()
client.connect(HOST, PORT, 60)
client.on_connect = on_connect

# Connect each MQTT topic to which you subscribed to a handler function
client.message_callback_add('hermes/intent/jocavdh:play_intro_act', on_play_intro_act)
client.message_callback_add('hermes/intent/jocavdh:question_continue_act', on_question_continue_act)
client.message_callback_add("hermes/nlu/intentNotRecognized", onIntentNotRecognized)

# Keep checking for new MQTT messages
client.loop_forever()