import websocket
import datetime
import hashlib
import base64
import hmac
import json
from urllib.parse import urlencode
import time
import ssl
from wsgiref.handlers import format_date_time
from datetime import datetime
from time import mktime
import _thread as thread
import os
from baidu import *

import pyaudio
import wave
import sys

import numpy as np

import vlc

STATUS_FIRST_FRAME = 0  # 第一帧的标识
STATUS_CONTINUE_FRAME = 1  # 中间帧标识
STATUS_LAST_FRAME = 2  # 最后一帧的标识
global_text = ""


class Ws_Param(object):
    # 初始化
    def __init__(self, APPID, APIKey, APISecret, Text):
        self.APPID = APPID
        self.APIKey = APIKey
        self.APISecret = APISecret
        self.Text = Text

        # 公共参数(common)
        self.CommonArgs = {"app_id": self.APPID}
        # 业务参数(business)，更多个性化参数可在官网查看
        # self.BusinessArgs = {
        #     "aue": "raw", "auf": "audio/L16;rate=16000", "vcn": "xiaoyan", "tte": "utf8"}
        self.BusinessArgs = {
            "aue": "lame", "sfl": 1, "auf": "audio/L16;rate=16000", "vcn": "aisjiuxu", "tte": "utf8"}
        self.Data = {"status": 2, "text": str(
            base64.b64encode(self.Text.encode('utf-8')), "UTF8")}
        # 使用小语种须使用以下方式，此处的unicode指的是 utf16小端的编码方式，即"UTF-16LE"”
        # self.Data = {"status": 2, "text": str(base64.b64encode(self.Text.encode('utf-16')), "UTF8")}

    # 生成url
    def create_url(self):
        url = 'wss://tts-api.xfyun.cn/v2/tts'
        # 生成RFC1123格式的时间戳
        now = datetime.now()
        date = format_date_time(mktime(now.timetuple()))

        # 拼接字符串
        signature_origin = "host: " + "ws-api.xfyun.cn" + "\n"
        signature_origin += "date: " + date + "\n"
        signature_origin += "GET " + "/v2/tts " + "HTTP/1.1"
        # 进行hmac-sha256进行加密
        signature_sha = hmac.new(self.APISecret.encode('utf-8'), signature_origin.encode('utf-8'),
                                 digestmod=hashlib.sha256).digest()
        signature_sha = base64.b64encode(
            signature_sha).decode(encoding='utf-8')

        authorization_origin = "api_key=\"%s\", algorithm=\"%s\", headers=\"%s\", signature=\"%s\"" % (
            self.APIKey, "hmac-sha256", "host date request-line", signature_sha)
        authorization = base64.b64encode(
            authorization_origin.encode('utf-8')).decode(encoding='utf-8')
        # 将请求的鉴权参数组合为字典
        v = {
            "authorization": authorization,
            "date": date,
            "host": "ws-api.xfyun.cn"
        }
        # 拼接鉴权参数，生成url
        url = url + '?' + urlencode(v)
        # print("date: ", date)
        # print("v: ", v)
        # 此处打印出建立连接时候的url,参考本demo的时候可取消上方打印的注释，比对相同参数时生成的url与自己代码生成的url是否一致
        # print('websocket url :', url)
        return url


def on_message(ws, message):
    try:
        message = json.loads(message)
        code = message["code"]
        sid = message["sid"]
        audio = message["data"]["audio"]
        audio = base64.b64decode(audio)
        status = message["data"]["status"]

        # print(message)

        # if status == 2:
        #     print("ws is closed")
        #     ws.close()
        if code != 0:
            errMsg = message["message"]
            # print("sid:%s call error:%s code is:%s" % (sid, errMsg, code))
        else:
            if status == 2:
                # print("ws is closed")
                ws.close()
            # with open('./demo.pcm', 'ab') as f:
            #     f.write(audio)
            with open('./demo.mp3', 'ab') as f:
                f.write(audio)
            # with wave.open("temp.wav", "wb") as wf:
            #     wf.setparams((1, 2, 16000, 0, 'NONE', 'NONE'))
            #     wf.writeframes(audio)

    except Exception as e:
        print("receive msg,but parse exception:", e)


# 收到websocket错误的处理
def on_error(ws, error):
    print("### error:", error)


# 收到websocket关闭的处理
def on_close(ws):
    print("### closed ###")


# 收到websocket连接建立的处理
def on_open(ws):
    def run(*args):
        d = {"common": wsParam.CommonArgs,
             "business": wsParam.BusinessArgs,
             "data": wsParam.Data,
             }
        d = json.dumps(d)
        ws.send(d)
        if os.path.exists('./demo.mp3'):
            os.remove('./demo.mp3')

    thread.start_new_thread(run, ())

class Ws_Param_stt(object):
    # 初始化
    def __init__(self, APPID, APIKey, APISecret, AudioFile):
        self.APPID = APPID
        self.APIKey = APIKey
        self.APISecret = APISecret
        self.AudioFile = AudioFile

        # 公共参数(common)
        self.CommonArgs = {"app_id": self.APPID}
        # 业务参数(business)，更多个性化参数可在官网查看
        self.BusinessArgs = {"domain": "iat", "language": "zh_cn", "accent": "mandarin", "vinfo":1,"vad_eos":10000}

    # 生成url
    def create_url(self):
        url = 'wss://ws-api.xfyun.cn/v2/iat'
        # 生成RFC1123格式的时间戳
        now = datetime.now()
        date = format_date_time(mktime(now.timetuple()))

        # 拼接字符串
        signature_origin = "host: " + "ws-api.xfyun.cn" + "\n"
        signature_origin += "date: " + date + "\n"
        signature_origin += "GET " + "/v2/iat " + "HTTP/1.1"
        # 进行hmac-sha256进行加密
        signature_sha = hmac.new(self.APISecret.encode('utf-8'), signature_origin.encode('utf-8'),
                                 digestmod=hashlib.sha256).digest()
        signature_sha = base64.b64encode(signature_sha).decode(encoding='utf-8')

        authorization_origin = "api_key=\"%s\", algorithm=\"%s\", headers=\"%s\", signature=\"%s\"" % (
            self.APIKey, "hmac-sha256", "host date request-line", signature_sha)
        authorization = base64.b64encode(authorization_origin.encode('utf-8')).decode(encoding='utf-8')
        # 将请求的鉴权参数组合为字典
        v = {
            "authorization": authorization,
            "date": date,
            "host": "ws-api.xfyun.cn"
        }
        # 拼接鉴权参数，生成url
        url = url + '?' + urlencode(v)
        # print("date: ",date)
        # print("v: ",v)
        # 此处打印出建立连接时候的url,参考本demo的时候可取消上方打印的注释，比对相同参数时生成的url与自己代码生成的url是否一致
        # print('websocket url :', url)
        return url


# 收到websocket消息的处理
def on_message_stt(ws, message):
    global global_text
    try:
        code = json.loads(message)["code"]
        sid = json.loads(message)["sid"]
        if code != 0:
            errMsg = json.loads(message)["message"]
            print("sid:%s call error:%s code is:%s" % (sid, errMsg, code))

        else:
            data = json.loads(message)["data"]["result"]["ws"]
            # print(data)
            #print(json.loads(message))
            result = ""
            for i in data:
                for w in i["cw"]:
                    result += w["w"]
            #print("sid:%s call success!,data is:%s" % (sid, json.dumps(data, ensure_ascii=False)))
            for word in data:
                #print(word['cw'][0]['w'])
                global_text += word['cw'][0]['w']

            
    except Exception as e:
        print("receive msg,but parse exception:", e)


# 收到websocket错误的处理
def on_error_stt(ws, error):
    print("### error:", error)


# 收到websocket关闭的处理
def on_close_stt(ws,a,b):
    print("### closed ###")
    with open("text.txt","r") as f:
        print(f.read())


# 收到websocket连接建立的处理
def on_open_stt(ws):
    def run(*args):
        frameSize = 8000  # 每一帧的音频大小
        intervel = 0.04  # 发送音频间隔(单位:s)
        status = STATUS_FIRST_FRAME  # 音频的状态信息，标识音频是第一帧，还是中间帧、最后一帧
        with open("text.txt","w") as f:
            f.write("")
        with open(wsParam_stt.AudioFile, "rb") as fp:
            frames=0
            while True:
                buf = fp.read(frameSize)
                # 文件结束
                if not buf:
                    status = STATUS_LAST_FRAME
                # 第一帧处理
                # 发送第一帧音频，带business 参数
                # appid 必须带上，只需第一帧发送
                if status == STATUS_FIRST_FRAME:

                    d = {"common": wsParam_stt.CommonArgs,
                         "business": wsParam_stt.BusinessArgs,
                         "data": {"status": 0, "format": "audio/L16;rate=16000",
                                  "audio": str(base64.b64encode(buf), 'utf-8'),
                                  "encoding": "raw"}}
                    d = json.dumps(d)
                    ws.send(d)
                    status = STATUS_CONTINUE_FRAME
                # 中间帧处理
                elif status == STATUS_CONTINUE_FRAME:
                    d = {"data": {"status": 1, "format": "audio/L16;rate=16000",
                                  "audio": str(base64.b64encode(buf), 'utf-8'),
                                  "encoding": "raw"}}
                    ws.send(json.dumps(d))
                # 最后一帧处理
                elif status == STATUS_LAST_FRAME:
                    d = {"data": {"status": 2, "format": "audio/L16;rate=16000",
                                  "audio": str(base64.b64encode(buf), 'utf-8'),
                                  "encoding": "raw"}}
                    ws.send(json.dumps(d))
                    time.sleep(1)
                    break
                # 模拟音频采样间隔
                time.sleep(intervel)
                frames+=1
            print(frames)
        ws.close()
    thread.start_new_thread(run, ())

def speech2text(wsParam):
    websocket.enableTrace(False)
    wsUrl = wsParam.create_url()
    ws = websocket.WebSocketApp(wsUrl, on_message=on_message_stt, on_error=on_error_stt, on_close=on_close_stt)
    ws.on_open = on_open_stt
    ws.run_forever(sslopt={"cert_reqs": ssl.CERT_NONE})
    # with open("text.txt","r") as f:
    #     text=f.read()
    # return text


if __name__ == "__main__":
    # 测试时候在此处正确填写相关信息即可运行
    while 1:
        global_text=""
        CHUNK = 512
        FORMAT = pyaudio.paInt16
        CHANNELS = 1
        RATE = 16000
        RECORD_SECONDS = 5
        WAVE_OUTPUT_FILENAME = "output.wav"

        p = pyaudio.PyAudio()

        stream = p.open(format=FORMAT,
                        channels=CHANNELS,
                        rate=RATE,
                        input=True,
                        frames_per_buffer=CHUNK)

        print("recording...")

        frames = []

        for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
            data = stream.read(CHUNK)
            frames.append(data)

        print("done")

        stream.stop_stream()
        stream.close()
        p.terminate()

        wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
        wf.setnchannels(CHANNELS)
        wf.setsampwidth(p.get_sample_size(FORMAT))
        wf.setframerate(RATE)
        wf.writeframes(b''.join(frames))
        wf.close()

        f = open("output.wav",'rb')
        f.seek(0)
        f.read(44)
        data = np.fromfile(f, dtype=np.int16)
        data.tofile("output.pcm")

        wsParam_stt = Ws_Param_stt(APPID='44385032', APISecret='YWNkNTZhMTkwZWFiZjhjNjU4MDg2MzY4',
                        APIKey='83f2198f66ed394e7a73deb57c1c1b44',
                        AudioFile=r'./output.pcm')
        speech2text(wsParam_stt)

        text = bdgettext(global_text)
        text = text.replace('\n', '').replace('\\n', '').replace('**', '')
        wsParam = Ws_Param(APPID='44385032', APISecret='YWNkNTZhMTkwZWFiZjhjNjU4MDg2MzY4',
                        APIKey='83f2198f66ed394e7a73deb57c1c1b44',
                        Text=text)
        
        websocket.enableTrace(False)
        wsUrl = wsParam.create_url()
        ws = websocket.WebSocketApp(
            wsUrl, on_message=on_message, on_error=on_error, on_close=on_close)
        ws.on_open = on_open
        ws.run_forever(sslopt={"cert_reqs": ssl.CERT_NONE})
        file = "demo.mp3"
        p=vlc.MediaPlayer(file)
        p.play()
        input("playing")
        p.stop()

        #os.system(file)