# x-run: cat _junk/logs.txt | python3 %

from base64 import b64decode
from sys import stdout, stdin, stderr
from json import loads

canvas = bytearray(125000)

last_update: int = 0
last_frame: int = 0

n_frames = 0

for line in stdin:
    _, data = line.strip().split(" ", 1)
    event, data = loads(data)

    if event == "full_state":
        buffer = b64decode(data["full_state"].encode() + b"=")
        last_update = data["timestamp"]
        canvas[:] = buffer
    elif event == "batched_bit_toggles":
        bits_on, bits_off, timestamp = data
        if timestamp >= last_update:
            for ndx in bits_on:
                byte, bit = divmod(ndx, 8)
                canvas[byte] |= (1 << bit)
            for ndx in bits_off:
                byte, bit = divmod(ndx, 8)
                canvas[byte] &= 0xFF ^ (1 << bit)
            last_update = timestamp

    if (last_update - last_frame) > 6_000:
        stdout.buffer.write(canvas)
        stdout.buffer.flush()
        last_frame = last_update