import os
import subprocess
import threading
import asyncio
import uuid
import time
import signal
import sys
import logging
import platform
import aiohttp
import spider  # 你的 spider 模块
import stream  # 你的 stream 模块
import configparser
from typing import Any, Optional

# ----------------- Logging Setup -----------------
logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s [%(levelname)s] %(message)s",
    datefmt="%H:%M:%S"
)

# ----------------- Douyin to YouTube Streamer -----------------
class DouyinToYouTubeStreamer:
    def __init__(self, bitrate=5000, audio_bitrate=128, resolution='720x1280',
                 fps=30, gop=60, max_minutes=None, enable_recording=False):
        self.push_proc = None
        self.record_proc = None
        self.stop_flag = threading.Event()
        self.bitrate = bitrate
        self.audio_bitrate = audio_bitrate
        self.resolution = resolution
        self.fps = fps
        self.gop = gop
        self.start_time = None
        self.room_name = None
        self.pushing = False
        self.out_file = None
        self.max_minutes = max_minutes
        self.enable_recording = enable_recording

        os.makedirs("records", exist_ok=True)

    def start_stream(self, real_url, youtube_key, room_name=None):
        self.room_name = room_name or f"抖音_{str(uuid.uuid4())[:8]}"
        logging.info(f"[{self.room_name}] 启动低延迟推流，目标 YouTube Key: {youtube_key}")
        threading.Thread(target=self._run_stream_loop,
                        args=(real_url, youtube_key), daemon=True).start()
        threading.Thread(target=self._monitor_thread, daemon=True).start()

    def _build_push_cmd(self, real_url, youtube_key):
        user_agent = ("Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
                      "AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36")
        headers = "Referer: https://www.douyin.com/\r\nOrigin: https://www.douyin.com\r\n"
        cmd = [
            'ffmpeg', '-y',
            '-rw_timeout', '10000000',
            '-analyzeduration', '1000000',
            '-probesize', '5000000',
            '-user_agent', user_agent,
            '-headers', headers,
            '-protocol_whitelist', 'file,pipe,http,https,tcp,tls,udp,rtp,crypto',
            '-fflags', '+discardcorrupt+genpts',
            '-flags', 'low_delay',
            '-http_seekable', '0',
            '-i', real_url,
            '-c:v', 'libx264', '-preset', 'veryfast', '-tune', 'zerolatency',
            '-b:v', f'{self.bitrate}k',
            '-maxrate', f'{self.bitrate}k',
            '-bufsize', f'{self.bitrate * 2}k',
            '-r', str(self.fps),
            '-g', str(self.gop),
            '-s', self.resolution,
            '-c:a', 'aac', '-b:a', f'{self.audio_bitrate}k', '-ar', '44100', '-ac', '2',
            '-f', 'flv',
            f'rtmp://a.rtmp.youtube.com/live2/{youtube_key}'
        ]
        return cmd

    def _build_record_cmd(self, real_url):
        base_name = f"{self.room_name}_{int(time.time())}.mp4"
        self.out_file = os.path.join("records", base_name).replace("\\", "/")
        cmd = [
            'ffmpeg', '-y',
            '-i', real_url,
            '-c:v', 'libx264',
            '-preset', 'veryfast',
            '-tune', 'zerolatency',
            '-c:a', 'aac',
            '-b:a', f'{self.audio_bitrate}k',
            '-ar', '44100',
            '-ac', '2',
            '-movflags', '+faststart+frag_keyframe',
            self.out_file
        ]
        return cmd

    def _run_stream_loop(self, real_url, youtube_key):
        while not self.stop_flag.is_set():
            try:
                self.start_time = time.time()
                self.pushing = False

                push_cmd = self._build_push_cmd(real_url, youtube_key)
                self.push_proc = subprocess.Popen(
                    push_cmd, stdout=subprocess.DEVNULL, stderr=subprocess.PIPE,
                    bufsize=1, universal_newlines=True
                )
                logging.info(f"[{self.room_name}] 推流进程 PID: {self.push_proc.pid}")

                if self.enable_recording:
                    record_cmd = self._build_record_cmd(real_url)
                    self.record_proc = subprocess.Popen(
                        record_cmd, stdout=subprocess.DEVNULL, stderr=subprocess.PIPE,
                        bufsize=1, universal_newlines=True
                    )
                    logging.info(f"[{self.room_name}] 本地录制开始: {self.out_file}")

                def monitor_proc(proc, name):
                    try:
                        while not self.stop_flag.is_set() and proc and proc.poll() is None:
                            line = proc.stderr.readline()
                            if not line:
                                continue
                            if name == "push" and not self.pushing and "frame=" in line and "fps=" in line:
                                self.pushing = True
                                logging.info(f"[{self.room_name}] 推流到 YouTube 成功")
                    except Exception as e:
                        logging.error(f"[{self.room_name} {name} stderr异常: {e}")

                threading.Thread(target=monitor_proc, args=(self.push_proc, "push"), daemon=True).start()
                if self.enable_recording:
                    threading.Thread(target=monitor_proc, args=(self.record_proc, "record"), daemon=True).start()

                while not self.stop_flag.is_set():
                    elapsed = time.time() - self.start_time
                    if self.max_minutes and elapsed >= self.max_minutes * 60:
                        logging.warning(f"[{self.room_name}] 超过 {self.max_minutes} 分钟，自动停止推流和录制")
                        self.stop()
                        break

                    if self.push_proc.poll() is not None:
                        logging.warning(f"[{self.room_name}] 推流进程退出，准备重新遍历 list.ini ...")
                        self.stop_flag.set()
                        break

                    if self.enable_recording and self.record_proc and self.record_proc.poll() is not None:
                        logging.warning(f"[{self.room_name}] 录制进程退出，1秒后重启...")
                        self._terminate_procs()
                        break

                    time.sleep(1)

            except Exception as e:
                logging.error(f"[{self.room_name}] FFmpeg异常: {e}")
            finally:
                self._terminate_procs()
                if not self.stop_flag.is_set():
                    time.sleep(1)

    def _terminate_procs(self):
        for proc in [self.push_proc, self.record_proc]:
            if proc and proc.poll() is None:
                proc.terminate()
                try:
                    proc.wait(timeout=2)
                except subprocess.TimeoutExpired:
                    proc.kill()
        self.push_proc, self.record_proc = None, None

    def _monitor_thread(self):
        while not self.stop_flag.is_set():
            uptime = int(time.time() - self.start_time) if self.start_time else 0
            m, s = divmod(uptime, 60)
            status = "推流中" if self.pushing else "启动中"
            print(f"\r[{self.room_name}] {status} | 运行时间: {m:02d}:{s:02d} | 码率: {self.bitrate}k", end="")
            time.sleep(1)

    def stop(self):
        logging.info(f"[{self.room_name}] 停止推流和录制...")
        self.stop_flag.set()
        self._terminate_procs()


# ----------------- Douyin Stream Parsing -----------------
async def get_douyin_real_url(record_url, record_quality="原画", proxy_addr=None, cookies=''):
    headers = {
        "User-Agent": ("Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
                       "AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36"),
        "Referer": "https://www.douyin.com/",
        "Origin": "https://www.douyin.com",
        "Accept": "application/json, text/javascript, */*; q=0.01",
    }

    session_args = {"headers": headers}
    if proxy_addr:
        session_args["proxy"] = proxy_addr

    try:
        async with aiohttp.ClientSession(**session_args) as session:
            for attempt in range(5):  # 增加重试次数到5次
                try:
                    async with session.get(record_url, cookies=cookies, timeout=10) as resp:
                        text = await resp.text()
                        if not text.strip() or "captcha" in text.lower():
                            logging.warning(f"第{attempt+1}次尝试获取流失败，返回内容为空或验证码，重试...")
                            await asyncio.sleep(2)  # 增加重试间隔
                            continue

                        if 'v.douyin.com' not in record_url and '/user/' not in record_url:
                            json_data = await spider.get_douyin_stream_data(
                                url=record_url, proxy_addr=proxy_addr, cookies=cookies)
                        else:
                            json_data = await spider.get_douyin_app_stream_data(
                                url=record_url, proxy_addr=proxy_addr, cookies=cookies)

                        if json_data is None:
                            logging.warning(f"第{attempt+1}次spider解析返回None，重试...")
                            await asyncio.sleep(2)
                            continue

                        port_info = await stream.get_douyin_stream_url(
                            json_data, record_quality, proxy_addr)

                        if port_info and isinstance(port_info, dict) and port_info.get("record_url"):
                            logging.info(f"成功解析直播流: {record_url}")
                            return port_info.get("record_url")
                        else:
                            logging.warning(f"第{attempt+1}次尝试解析失败，port_info无效: {port_info}")
                            await asyncio.sleep(2)
                except json.JSONDecodeError as e:
                    logging.warning(f"第{attempt+1}次JSON解析失败: {e}，重试...")
                    await asyncio.sleep(2)
                except aiohttp.ClientError as e:
                    logging.warning(f"第{attempt+1}次网络请求失败: {e}，重试...")
                    await asyncio.sleep(2)
                except Exception as e:
                    logging.warning(f"第{attempt+1}次尝试抓取抖音流异常: {e}")
                    await asyncio.sleep(2)
        logging.error(f"多次尝试后仍获取抖音真实流失败: {record_url}")
        return None
    except Exception as e:
        logging.error(f"初始化 aiohttp session 失败: {e}")
        return None


def start_douyin_to_youtube(record_url, youtube_key, real_url: Optional[str] = None, room_name=None,
                            proxy_addr=None, cookies='', bitrate=5000, enable_recording=False):
    if real_url is None:
        real_url = asyncio.run(get_douyin_real_url(record_url, proxy_addr=proxy_addr, cookies=cookies))
    if not real_url:
        logging.error(f"获取真实直播流失败: {record_url}")
        return None
    logging.info(f"实际直播流: {real_url}")
    streamer = DouyinToYouTubeStreamer(bitrate=bitrate, enable_recording=enable_recording, max_minutes=None)
    streamer.start_stream(real_url, youtube_key, room_name)
    return streamer


# ----------------- Auto Scheduler -----------------
def load_config():
    config = configparser.ConfigParser()
    config.read("config.ini", encoding="utf-8")
    youtube_key = config.get("youtube", "key", fallback=None)
    return youtube_key


def load_list():
    urls = []
    seen = set()
    with open("list.ini", "r", encoding="utf-8") as f:
        for line in f:
            url = line.strip()
            if url and not url.startswith("#") and url not in seen:
                urls.append(url)
                seen.add(url)
    logging.info(f"加载 {len(urls)} 个唯一直播间URL，按文件顺序排列")
    return urls


def find_live_and_stream(youtube_key):
    urls = load_list()
    for i, url in enumerate(urls, 1):
        logging.info(f"检查第 {i}/{len(urls)} 个URL: {url}")
        real_url = asyncio.run(get_douyin_real_url(url))
        if real_url:
            logging.info(f"找到可用直播流: {url}")
            streamer = start_douyin_to_youtube(url, youtube_key, real_url=real_url, room_name=f"抖音_{url.split('/')[-1]}", enable_recording=False)
            if streamer:
                return streamer
            else:
                logging.warning(f"{url} 流检测成功但启动失败，继续下一个...")
        else:
            logging.info(f"{url} 暂无直播，继续检测...")
    return None


# ----------------- Main Program -----------------
if __name__ == "__main__":
    youtube_key = load_config()
    if not youtube_key:
        logging.error("配置文件 config.ini 中未找到 YouTube Key")
        sys.exit(1)

    streamer_instance = None

    def signal_handler(sig, frame):
        if streamer_instance:
            streamer_instance.stop()
        sys.exit(0)

    signal.signal(signal.SIGINT, signal_handler)
    signal.signal(signal.SIGTERM, signal_handler)

    logging.info("程序已启动，自动检测抖音直播...")
    while True:
        if not streamer_instance or streamer_instance.stop_flag.is_set():
            streamer_instance = find_live_and_stream(youtube_key)
            if not streamer_instance:
                logging.info("未找到正在直播的房间，60秒后重试...")
                time.sleep(60)
        time.sleep(10)