# -*- coding: utf-8-*-
from snowboy import snowboydecoder
from robot import config, utils, constants, logging, statistic, Player
from robot.Updater import Updater
from robot.ConfigMonitor import ConfigMonitor
from robot.Conversation import Conversation
from server import server
from watchdog.observers import Observer
import sys
import os
import signal
import hashlib
import fire
import urllib3
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)

logger = logging.getLogger(__name__)

class Wukong(object):

    _profiling = False
    _dev = False
    
    def init(self):
        global conversation
        self.detector = None
        self._interrupted = False        
        print('''
********************************************************
*          wukong-robot - 中文语音对话机器人           *
*          (c) 2019 潘伟洲 <m@hahack.com>              *
*     https://github.com/wzpan/wukong-robot.git        *
********************************************************

            如需退出，可以按 Ctrl-4 组合键。

''')
        
        config.init()
        self._conversation = Conversation(self._profiling)
        self._conversation.say('{} 你好！试试对我喊唤醒词叫醒我吧'.format(config.get('first_name', '主人')), True)
        self._observer = Observer()
        event_handler = ConfigMonitor(self._conversation)
        self._observer.schedule(event_handler, constants.CONFIG_PATH, False)
        self._observer.schedule(event_handler, constants.DATA_PATH, False)
        self._observer.start()

    def _signal_handler(self, signal, frame):
        self._interrupted = True
        utils.clean()
        self._observer.stop()

    def _detected_callback(self):
        if not utils.is_proper_time():
            logger.warning('勿扰模式开启中')
            return
        if self._conversation.isRecording:
            logger.warning('正在录音中，跳过')
            return
        Player.play(constants.getData('beep_hi.wav'))
        logger.info('开始录音')
        self._conversation.interrupt()
        self._conversation.isRecording = True;

    def _do_not_bother_on_callback(self):
        if config.get('/do_not_bother/hotword_switch', False):
            utils.do_not_bother = True
            Player.play(constants.getData('off.wav'))
            logger.info('勿扰模式打开')

    def _do_not_bother_off_callback(self):
        if config.get('/do_not_bother/hotword_switch', False):
            utils.do_not_bother = False
            Player.play(constants.getData('on.wav'))
            logger.info('勿扰模式关闭')

    def _interrupt_callback(self):
        return self._interrupted

    def run(self):
        self.init()

        # capture SIGINT signal, e.g., Ctrl+C
        signal.signal(signal.SIGINT, self._signal_handler)

        # site
        server.run(self._conversation, self)

        statistic.report(0)

        try:
            self.initDetector()
        except AttributeError:
            logger.error('初始化离线唤醒功能失败')
            pass

    def initDetector(self):
        if self.detector is not None:
            self.detector.terminate()
        if config.get('/do_not_bother/hotword_switch', False):
            models = [
                constants.getHotwordModel(config.get('hotword', 'wukong.pmdl')),
                constants.getHotwordModel(utils.get_do_not_bother_on_hotword()),
                constants.getHotwordModel(utils.get_do_not_bother_off_hotword())
            ]
        else:
            models = constants.getHotwordModel(config.get('hotword', 'wukong.pmdl'))
        self.detector = snowboydecoder.HotwordDetector(models, sensitivity=config.get('sensitivity', 0.5))
        # main loop
        try:
            if config.get('/do_not_bother/hotword_switch', False):
                callbacks = [self._detected_callback,
                             self._do_not_bother_on_callback,
                             self._do_not_bother_off_callback]
            else:
                callbacks = self._detected_callback
            self.detector.start(detected_callback=callbacks,
                                audio_recorder_callback=self._conversation.converse,
                                interrupt_check=self._interrupt_callback,
                                silent_count_threshold=config.get('silent_threshold', 15),
                                recording_timeout=config.get('recording_timeout', 5) * 4,
                                sleep_time=0.03)
            self.detector.terminate()
        except Exception as e:
            logger.critical('离线唤醒机制初始化失败：{}'.format(e))

    def md5(self, password):
        return hashlib.md5(password.encode('utf-8')).hexdigest()

    def update(self):
        updater = Updater()
        return updater.update()

    def fetch(self):
        updater = Updater()
        updater.fetch()

    def restart(self):
        logger.critical('程序重启...')
        try:
            self.detector.terminate()
        except AttributeError:
            pass
        python = sys.executable
        os.execl(python, python, * sys.argv)

    def profiling(self):
        logger.info('性能调优')
        self._profiling = True
        self.run()

    def dev(self):
        logger.info('使用测试环境')
        self._dev = True
        self.run()

if __name__ == '__main__':
    if len(sys.argv) == 1:
        wukong = Wukong()
        wukong.run()
    else:
        fire.Fire(Wukong)