from datetime import timedelta

import requests
import json
import random
import re
import time



class TTS:
    @classmethod
    def get_pw_zm(cls, text, voice):
        max_retries = 3
        for attempt in range(max_retries):
            url = "http://api.piaoquantv.com/produce-center/speechSynthesis"
            payload = json.dumps({
                "params": {
                    "text": text,
                    "voice": voice,
                    # "vocie": "zhiyuan",
                    "format": "pcm",
                    "volume": 90,
                    "speechRate": 80,
                    "pitchRate": 0
                }
            })

            headers = {
                'Content-Type': 'application/json'
            }
            wait_time = random.uniform(1, 10)
            time.sleep(wait_time)
            try:
                response = requests.request("POST", url, headers=headers, data=payload, timeout=60)
                response = response.json()
                code = response["code"]
                if code == 0:
                    mp3 = response["data"]
                    return mp3
            except Exception:
                if attempt == max_retries - 1:
                    return None
        return None

    """
    音频下载到本地
    """
    @classmethod
    def download_mp3(cls,  pw_url, file_path):
        pw_mp3_path = file_path +'pw_video.mp3'
        for i in range(3):
            payload = {}
            headers = {}
            response = requests.request("GET", pw_url, headers=headers, data=payload, timeout= 30)
            if response.status_code == 200:
                # 以二进制写入模式打开文件
                with open(f"{pw_mp3_path}", "wb") as file:
                    # 将响应内容写入文件
                    file.write(response.content)
                return pw_mp3_path
        return None

    @classmethod
    def get_srt_format(cls, pw_srt_text, pw_url_sec):
        segments = re.split(r'(，|。|！|？)', pw_srt_text)
        segments = [segments[i] + segments[i + 1] for i in range(0, len(segments) - 1, 2)]
        pw_url_sec = int(pw_url_sec) + 1
        # 确定每段显示时间
        num_segments = len(segments)
        duration_per_segment = pw_url_sec / num_segments
        srt_content = ""
        start_time = 0.0
        for i, segment in enumerate(segments):
            end_time = start_time + duration_per_segment
            srt_content += f"{i + 1}\n"
            srt_content += f"{int(start_time // 3600):02}:{int((start_time % 3600) // 60):02}:{int(start_time % 60):02},{int((start_time % 1) * 1000):03} --> "
            srt_content += f"{int(end_time // 3600):02}:{int((end_time % 3600) // 60):02}:{int(end_time % 60):02},{int((end_time % 1) * 1000):03}\n"
            srt_content += f"{segment.strip()}\n\n"
            start_time = end_time

        print(srt_content)
        return srt_content

    @classmethod
    def process_srt(cls, srt):
        lines = srt.strip().split('\n')
        processed_lines = []

        for line in lines:
            if re.match(r'^\d+$', line):
                processed_lines.append(line)
            elif re.match(r'^\d{2}:\d{2}:\d{2}\.\d{1,3}-->\d{2}:\d{2}:\d{2}\.\d{1,3}$', line):
                processed_lines.append(line.replace('-->', ' --> '))
            else:
                line = re.sub(r'[，。！？；、]$', '', line)
                # 添加换行符
                processed_lines.append(line + '\n')

        return '\n'.join(processed_lines)

    @classmethod
    def parse_timecode(cls, timecode):
        h, m, s = map(float, timecode.replace(',', '.').split(':'))
        return timedelta(hours=h, minutes=m, seconds=s)

    @classmethod
    def format_timecode(cls, delta):
        total_seconds = delta.total_seconds()
        hours, remainder = divmod(total_seconds, 3600)
        minutes, seconds = divmod(remainder, 60)
        return f"{int(hours):02}:{int(minutes):02}:{seconds:06.3f}".replace('.', ',')

    @classmethod
    def split_subtitle(cls, subtitle_string):
        max_len = 14
        lines = subtitle_string.strip().split('\n')
        subtitles = []
        for i in range(0, len(lines), 4):
            sub_id = int(lines[i].strip())
            timecode_line = lines[i + 1].strip()
            start_time, end_time = timecode_line.split(' --> ')
            text = lines[i + 2].strip()
            if re.search(r'[a-zA-Z]', text):
                text = re.sub(r'[a-zA-Z]', '', text)
            start_delta = cls.parse_timecode(start_time)
            end_delta = cls.parse_timecode(end_time)
            total_duration = (end_delta - start_delta).total_seconds()
            char_duration = total_duration / len(text)

            current_start = start_delta
            for j in range(0, len(text), max_len):
                segment = text[j:j + max_len]
                current_end = current_start + timedelta(seconds=char_duration * len(segment))
                subtitles.append((sub_id, current_start, current_end, segment))
                current_start = current_end
                sub_id += 1

        return subtitles

    @classmethod
    def generate_srt(cls, subtitles):
        srt_content = ''
        for idx, sub in enumerate(subtitles, start=1):
            srt_content += f"{idx}\n"
            srt_content += f"{cls.format_timecode(sub[1])} --> {cls.format_timecode(sub[2])}\n"
            srt_content += f"{sub[3]}\n\n"
        return srt_content.strip()

    @classmethod
    def getSrt(cls, mp3_id):
        url = "http://api.piaoquantv.com/produce-center/srt/get/content"

        payload = json.dumps({
            "params": {
                "resourceChannel": "outer",
                "videoPath": mp3_id
            }
        })
        headers = {
            'User-Agent': 'Apifox/1.0.0 (https://apifox.com)',
            'Content-Type': 'application/json',
            'Accept': '*/*',
            'Host': 'api-internal.piaoquantv.com',
            'Connection': 'keep-alive'
        }

        response = requests.request("POST", url, headers=headers, data=payload, timeout=30)
        time.sleep(1)
        data_list = response.json()
        code = data_list["code"]
        if code == 0:
            srt = data_list["data"]
            if srt:
                srt = srt.replace("/n", "\n")
                new_srt = cls.process_srt(srt)
                result = cls.split_subtitle(new_srt)
                # 生成SRT格式内容
                srt_content = cls.generate_srt(result)
                return srt_content
            else:
                return None
        else:
            return None


if __name__ == '__main__':
    # text = "真是太实用了，分享给身边的准妈妈们吧！这些孕期禁忌一定要记住，赶紧转发给更多人，帮助更多的宝妈们。一起为宝宝的健康加油！"
    # mp3 = TTS.get_pw_zm(text)
    # print(mp3)
    # command = [
    #   'ffmpeg',
    #   '-i', mp3,
    #   '-q:a', '0',
    #   '-map', 'a',
    #   # '-codec:a', 'libmp3lame',  # 指定 MP3 编码器
    #   "/Users/tzld/Desktop/video_rewriting/path/pw_video.mp3"
    # ]
    # subprocess.run(command)
    # print("完成")
    video_file = 'http://clipres.yishihui.com/longvideo/crawler/voice/pre/20240821/37fbb8cfc7f1439b8d8a032a1d01d37f1724219959925.mp3'
    TTS.getSrt(video_file)
    # result = subprocess.run(
    #     ["ffprobe", "-v", "error", "-show_entries", "format=duration",
    #      "-of", "default=noprint_wrappers=1:nokey=1", video_file],
    #     capture_output=True, text=True)
    # print(float(result.stdout))