# This script only works if this is the main process.
# This script must be executed with bash script that is located in the root directory of this project
# This is by design, and is a way to circumvent GIL of python, because the server needs to handle multiple video streaming at once.

if __name__ == "__main__":
    from ITS.api import gather_cctv_list
    from hls_streaming.hls import FrameCapturer

    import argparse
    import pandas as pd
    import time


    def refresh_hls_address(lat, lon, lat_lon_interval=0.000001):
        api_result = gather_cctv_list(
            xmin=lat - lat_lon_interval, ymin=lon - lat_lon_interval,
            xmax=lat + lat_lon_interval, ymax=lon + lat_lon_interval,
            intervals=1, roadType="its", cctvType=1
        )
        return api_result.loc[0]["cctvurl"]

    args = argparse.ArgumentParser()
    args.add_argument("--cctv_num", type=int, help="index number of cctv, see cctv_list.csv")
    args = args.parse_args()

    cctv_ind = args.cctv_num

    cctv_info = pd.read_csv("config/cctv_list.csv")
    cctv_info = cctv_info.iloc[cctv_ind]

    lat = cctv_info["coordx"]
    lon = cctv_info["coordy"]
    name = cctv_info["cctvname"]
    if name.find("국도"):
        roadtype = 'its'
    else:
        roadtype = 'ex'

    # initiate ITS CCTV streaming via hls
    while True:

        cctv_url = refresh_hls_address(lat, lon, )
        print(name)
        hls_streaming = FrameCapturer(cctv_url, name, lat, lon, 5, 15, 300, "Asia/Seoul",
                                      endpoint= "http://localhost:12345/cctv/infer")
        hls_streaming.start()

        time.sleep(60000)

        hls_streaming.stop()