import os
import subprocess
import threading
import time
import glob
import asyncio
import uuid
import spider
import stream

class Douyin2YouTube:
    def __init__(self, cache_dir="cache", segment_time=10):
        self.cache_dir = cache_dir
        self.segment_time = segment_time
        os.makedirs(cache_dir, exist_ok=True)

    async def get_real_url(self, record_url, record_quality="原画"):
        # 调用你的抖音爬虫模块获取真实直播流
        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)
        else:
            json_data = await spider.get_douyin_app_stream_data(url=record_url)
        port_info = await stream.get_douyin_stream_url(json_data, record_quality, None)
        return port_info.get("record_url")

    def start(self, record_url, youtube_key, room_name=None):
        room_name = room_name or f"抖音_{str(uuid.uuid4())[:8]}"
        real_url = asyncio.run(self.get_real_url(record_url))
        if not real_url:
            print(f"[{room_name}] 获取真实直播流失败")
            return
        print(f"[{room_name}] 实际直播流: {real_url}")

        tmp_prefix = os.path.join(self.cache_dir, f"{room_name}_")
        for f in glob.glob(f"{tmp_prefix}*.ts"):
            os.remove(f)

        # ----------------- 拉流线程 -----------------
        def record_thread():
            while True:
                cmd = [
                    "ffmpeg",
                    "-user_agent", "Mozilla/5.0",
                    "-headers", "Referer: https://www.douyin.com/",
                    "-rw_timeout", "15000000",
                    "-fflags", "+genpts+igndts+nobuffer",
                    "-flags", "low_delay",
                    "-reconnect", "1",
                    "-reconnect_streamed", "1",
                    "-reconnect_delay_max", "10",
                    "-i", real_url,
                    "-c", "copy",
                    "-f", "segment",
                    "-segment_time", str(self.segment_time),
                    "-reset_timestamps", "1",
                    f"{tmp_prefix}%03d.ts"
                ]
                try:
                    subprocess.run(cmd)
                except Exception as e:
                    print(f"[{room_name}] 拉流异常: {e}, 10秒后重试")
                    time.sleep(10)

        # ----------------- 推流线程 -----------------
        def push_thread():
            pushed_files = set()
            while True:
                segments = sorted(glob.glob(f"{tmp_prefix}*.ts"))
                new_segments = [s for s in segments if s not in pushed_files]
                for seg in new_segments:
                    cmd = [
                        "ffmpeg",
                        "-re",
                        "-i", seg,
                        "-c:v", "libx264", "-preset", "veryfast",
                        "-b:v", "3000k", "-maxrate", "3000k", "-bufsize", "6000k",
                        "-r", "30", "-g", "60",
                        "-c:a", "aac", "-b:a", "128k",
                        "-f", "flv",
                        f"rtmp://a.rtmp.youtube.com/live2/{youtube_key}"
                    ]
                    try:
                        subprocess.run(cmd)
                        pushed_files.add(seg)
                    except Exception as e:
                        print(f"[{room_name}] 推流异常: {e}, 10秒后重试")
                        time.sleep(10)
                time.sleep(1)

        threading.Thread(target=record_thread, daemon=True).start()
        threading.Thread(target=push_thread, daemon=True).start()
        print(f"[{room_name}] 转播线程已启动，YouTube 推流保证连续")

# ----------------- 示例 -----------------
if __name__ == "__main__":
    DOUYIN_URL = "https://live.douyin.com/210443559964"  # 填抖音直播 URL
    YOUTUBE_KEY = "qxvb-r47b-r5ju-6ud3-6k7z"            # 填 YouTube 直播 Key
    broadcaster = Douyin2YouTube()
    broadcaster.start(DOUYIN_URL, YOUTUBE_KEY)

    while True:
        time.sleep(60)