from json import loads, dumps

events = []

def doOffline(state, cur_t, cur_ps):
	(last_t, last_ev, last_evt, last_ps) = state
	working = (cur_t - last_t < 70)

	if not working and last_ev == 'online':
		events.append({'period': [last_evt, last_t], 'type': 'players', 'players': last_ps})
		return (cur_t, 'error', last_t, cur_ps)
	else:
		return state


def doBackOnline(state, cur_t, cur_ps):
	(last_t, last_ev, last_evt, last_ps) = state
	working = (cur_t - last_t < 70)

	if working and last_ev != 'online':
		events.append({'period': [last_evt, cur_t], 'type': 'error'})
		return (cur_t, 'online', last_t, last_ps)
	else:
		return state


def doPlayerChange(state, cur_t, cur_ps):
	(last_t, last_ev, last_evt, last_ps) = state
	working = (cur_t - last_t < 70)

	if working and last_ps != cur_ps:
		events.append({'period': [last_evt, cur_t], 'type': 'players', 'players': last_ps})
		return (cur_t, 'online', cur_t, cur_ps)
	else:
		return state


def doUpdateTime(state, cur_t, cur_ps):
	(last_t, last_ev, last_evt, last_ps) = state
	return (cur_t, last_ev, last_evt, last_ps)


def doCurrent(state):
	(last_t, last_ev, last_evt, last_ps) = state
	events.append({'period': [last_evt, last_t], 'type': 'current', 'players': last_ps})


with open('all-time.txt') as f:
	state = ()
	cur_t = 0
	cur_ps = []

	for line in f:
		current = loads(line)
		cur_t = current['time']
		cur_ps = current['players']

		if state == ():
			state = (cur_t, 'online', cur_t, cur_ps)
		else:
			state = doOffline(state, cur_t, cur_ps)
			state = doBackOnline(state, cur_t, cur_ps)
			state = doPlayerChange(state, cur_t, cur_ps)
			state = doUpdateTime(state, cur_t, cur_ps)

	doCurrent(state)


def dumpJSON(events):
	for event in events:
		print(dumps(event))

dumpJSON(events)