import os
import threading
import time

import systemd.daemon
import LogstashLogging
from LogstashLogging import logstash_logger
from threading import Thread
import logging
import socket

RUN_IP_CHECK = False
try:
    from compLib.Display import Display
except Exception as e:
    logstash_logger.warning(f"Could not import display for battery output {str(e)}")


__run = """raspivid -t 0 -b 5000000 -w 1280 -h 720 -fps 30 -n -o - | gst-launch-1.0 fdsrc ! video/x-h264,width=1280,height=720,framerate=30/1,noise-reduction=1,profile=high,stream-format=byte-stream  ! h264parse ! queue ! flvmux streamable=true ! rtmpsink location=\"rtmp://localhost/live/stream\""""

STREAM_RASPI = False if os.getenv("STREAM_RASPI", "false") == "false" else True
IP_OUTPUT = False if os.getenv("IP_OUTPUT", "false") == "false" else True


def get_ip():
    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    try:
        s.connect(('10.255.255.255', 1))
        IP = s.getsockname()[0]
    except Exception:
        IP = '127.0.0.1'
    finally:
        s.close()
    return IP


def write_ip_to_screen():
    while not os.getenv("IP_OUTPUT", "false") == "false":
        ip = str(get_ip())
        logstash_logger.info(f"writing {ip} to display")
        Display.write(1, ip)
        time.sleep(60)


if __name__ == '__main__':
    try:
        systemd.daemon.notify(systemd.daemon.Notification.READY)
    except:
        logstash_logger.warning("Warning, old systemd version detected")
        systemd.daemon.notify('READY=1')

    logstash_logger.info("starting ip output")
    ip_output = None
    if RUN_IP_CHECK and IP_OUTPUT:
        try:
            ip_output = threading.Thread(target=write_ip_to_screen)
            ip_output.start()
            logstash_logger.info("starting battery checker - DONE")
        except Exception as e:
            logstash_logger.error(f"could not start battery checker -> {str(e)}")

    if STREAM_RASPI:
        logstash_logger.info("starting gstreamer background process")
        os.system(__run)
        logstash_logger.error("gstreamer stopped...")
    else:
        logstash_logger.info("not starting gstreamer background process and only checking for battery")
        if ip_output is not None:
            ip_output.join()
        else:
            logstash_logger.info("ip display output failed to initialize.. sleeping for a day, good night")
            time.sleep(60*60*24)