#encoding = utf8
import logging
import asyncio
import time

import edge_tts
import numpy as np
import pyaudio
import soundfile
import sounddevice
import resampy
import queue
from io import BytesIO
from queue import Queue
from threading import Thread, Event

from IPython.core.display_functions import display
from pydub import AudioSegment

import audio

logger = logging.getLogger(__name__)


class TTSBase:
    def __init__(self, human):
        self._human = human
        self._thread = None
        self._queue = Queue()
        self._io_stream = BytesIO()
        self._chunk_len = self._human.get_audio_sample_rate() // self._human.get_fps()

        self._exit_event = Event()
        self._thread = Thread(target=self._on_run)
        self._exit_event.set()
        self._thread.start()
        # self._pcm_player = pyaudio.PyAudio()
        # self._pcm_stream = self._pcm_player.open(format=pyaudio.paInt16,
        #                                          channels=1, rate=24000, output=True)
        logging.info('tts start')

    def _on_run(self):
        logging.info('tts run')
        while self._exit_event.is_set():
            try:
                txt = self._queue.get(block=True, timeout=1)
            except queue.Empty:
                continue
            self._request(txt)
        logging.info('tts exit')

    def _request(self, txt):
        voice = 'zh-CN-XiaoyiNeural'
        t = time.time()
        asyncio.new_event_loop().run_until_complete(self.__on_request(voice, txt))
        logger.info(f'edge tts time:{time.time() - t : 0.4f}s')

        self._io_stream.seek(0)
        stream = self.__create_bytes_stream(self._io_stream)
        # audio.save_wav(stream, "./temp/audio/test1.wav", 16000)
        stream_len = stream.shape[0]

        print("stream_len:", stream_len, " _chunk_len:", self._chunk_len)
        index = 0
        segment = 0
        while stream_len >= self._chunk_len:
            audio_chunk = stream[index:index + self._chunk_len]
            self._human.push_audio_chunk(audio_chunk)
            stream_len -= self._chunk_len
            index += self._chunk_len
            segment = segment + 1
        print("segment:", segment)
        self._io_stream.seek(0)
        self._io_stream.truncate()

    def __create_bytes_stream(self, io_stream):
        stream, sample_rate = soundfile.read(io_stream)
        logger.info(f'tts audio stream {sample_rate} : {stream.shape}')
        stream = stream.astype(np.float32)

        if stream.ndim > 1:
            logger.warning(f'tts audio has {stream.shape[1]} channels, only use the first')
            stream = stream[:, 1]

        if sample_rate != self._human.get_audio_sample_rate() and stream.shape[0] > 0:
            logger.warning(f'tts audio sample rate is {sample_rate}, resample to {self._human.get_audio_sample_rate() }')
            stream = resampy.resample(x=stream, sr_orig=sample_rate, sr_new=self._human.get_audio_sample_rate() )

        return stream

    async def __on_request(self, voice, txt):
        communicate = edge_tts.Communicate(txt, voice)
        first = True
        total_data = b''
        CHUNK_SIZE = self._chunk_len
        async for chunk in communicate.stream():
            if chunk["type"] == "audio" and chunk["data"]:
                data = chunk['data']
                self._io_stream.write(data)
            elif chunk["type"] == "WordBoundary":
                pass
                '''
                total_data += chunk["data"]
                if len(total_data) >= CHUNK_SIZE:
                #     print(f"Time elapsed: {time.time() - start_time:.2f} seconds")  # Print time
                    audio_data = AudioSegment.from_mp3(BytesIO(total_data[:CHUNK_SIZE])) #.raw_data
                    audio_data = audio_data.set_frame_rate(self._human.get_audio_sample_rate())
                    # self._human.push_audio_chunk(audio_data)
                    self._pcm_stream.write(audio_data.raw_data)
                    # play_audio(total_data[:CHUNK_SIZE], stream)  # Play first CHUNK_SIZE bytes
                    total_data = total_data[CHUNK_SIZE:]  # Remove played data
                '''

            # if first:
            #     first = False

            # if chuck['type'] == 'audio':
            #     # self._io_stream.write(chuck['data'])
            #     self._io_stream.write(AudioSegment.from_mp3(BytesIO(total_data[:CHUNK_SIZE])).raw_data)

        # if len(total_data) > 0:
             # self._pcm_stream.write(AudioSegment.from_mp3(BytesIO(total_data)).raw_data)
             # audio_data = AudioSegment.from_mp3(BytesIO(total_data))  # .raw_data
             # audio_data = audio_data.set_frame_rate(self._human.get_audio_sample_rate())
             # self._pcm_stream.write(audio_data.raw_data)
             # self._human.push_audio_chunk(audio_data)
        # self._io_stream.write(AudioSegment.from_mp3(BytesIO(total_data)).raw_data)

    def stop(self):
        self._pcm_stream.stop_stream()
        self._pcm_player.close(self._pcm_stream)
        self._pcm_player.terminate()
        if self._exit_event is None:
            return

        self._exit_event.clear()
        self._thread.join()
        logging.info('tts stop')

    def clear(self):
        self._queue.queue.clear()

    def push_txt(self, txt):
        self._queue.put(txt)