#encoding = utf8

import os
import logging
import time

import numpy as np

from human import HumanRender, RenderStatus
from ipc import IPCUtil
from utils import render_image

logger = logging.getLogger(__name__)
current_file_path = os.path.dirname(os.path.abspath(__file__))


class IpcRender(HumanRender):
    def __init__(self, context):
        super().__init__(context, None)
        self._ipc = IPCUtil('human_product', 'human_render')
        self._current_text = ''

    def _send_image(self, image):
        height, width, channels = image.shape
        t = time.perf_counter()
        width_bytes = width.to_bytes(4, byteorder='little')
        height_bytes = height.to_bytes(4, byteorder='little')
        bit_depth_bytes = channels.to_bytes(4, byteorder='little')

        img_bytes = image.tobytes()
        identifier = b'\x01'
        data = identifier + width_bytes + height_bytes + bit_depth_bytes + img_bytes
        self._ipc.send_binary(data, len(data))

    def _send_voice(self, voice):
        voice_identifier = b'\x02'
        data = voice_identifier
        for audio_frame in voice:
            frame, type_ = audio_frame
            chunk, txt = frame
            if txt != self._current_text:
                self._current_text = txt
                logging.info(f'VoiceRender: {txt}')
            chunk = (chunk * 32767).astype(np.int16)
            voice_bytes = chunk.tobytes()
            data = data + voice_bytes

        self._ipc.send_binary(data, len(data))

    def _on_reader_callback(self, data_str, size):
        data_str = data_str.decode('utf-8')
        # print(f'on_reader_callback: {data_str}, size:{size}')
        if 'quit' == data_str:
            self._context.stop()
        elif 'heartbeat' == data_str:
            pass
        elif 'full' == data_str:
            if self._render_status != RenderStatus.E_Full:
                # logger.info(f'change to E_Full status')
                self._render_status = RenderStatus.E_Full
        elif 'empty' == data_str:
            if self._render_status != RenderStatus.E_Empty:
                # logger.info(f'change to E_Full status')
                self._render_status = RenderStatus.E_Empty
        elif 'normal' == data_str:
            if self._render_status != RenderStatus.E_Normal:
                # logger.info(f'change to E_Normal status')
                self._render_status = RenderStatus.E_Normal

    def run(self):
        self._ipc.set_reader_callback(self._on_reader_callback)
        logger.info(f'ipc listen:{self._ipc.listen()}')
        super().run()

    def _render(self, video_frame, voice_frame):
        image = render_image(self._context, video_frame)
        self._send_image(image)
        self._send_voice(voice_frame)