# Reads the Cardputer's serial port, reconnecting when it re-enumerates. Run via serial_log.sh.
import glob, os, sys, time
import serial

end = time.time() + float(sys.argv[1])
commands = sys.argv[2:]  # sent once after connecting, e.g. "burst"
while time.time() < end:
    ports = glob.glob('/dev/serial/by-id/*Espressif*')
    if not ports:
        time.sleep(1)
        continue
    try:
        s = serial.Serial(os.path.realpath(ports[0]), 115200, timeout=0.2)
        print('[connected]', flush=True)
        for c in commands:  # "sleep:N" waits N seconds between commands
            if c.startswith('sleep:'):
                time.sleep(float(c[6:]))
                continue
            time.sleep(1)
            s.write((c + '\n').encode())
        commands = []
        buf = b''
        while time.time() < end:
            buf += s.read(512)
            while b'\n' in buf:
                line, buf = buf.split(b'\n', 1)
                print(line.decode(errors='replace').rstrip(), flush=True)
    except Exception as e:
        print('[disconnected]', e, flush=True)
        time.sleep(1)