from json import loads
from xml.etree.ElementTree import Element, tostring
from datetime import datetime

def readEvents():
	events = []
	with open('events.json', 'r') as f:
		for line in f:
			events.append(loads(line))

	with open('current-state.json', 'r') as f:
		events.append(loads(f.read()))

	return events

def getSVG(events):
	scale = 1/60/60/24
	period = 3*30 *60*60*24
	end = datetime.now().timestamp()
	start = end-period
#	start = events[0]['period'][0]
#	end = events[-1]['period'][1]
	root = Element('svg', {
		'version': '1.1',
		'xmlns': 'http://www.w3.org/2000/svg',
		'viewBox': '0 0 {} 200'.format(scale*period*200),
		'width': str(scale*period*200),
		'height': '200',
	})
	group = Element('svg', {
		'viewBox': '{} 0 {} 10'.format(scale*start,scale*period),
		'width': '100%',
		'height': '100%',
		'preserveAspectRatio': 'none'
	})

	for i in range(0,10+1):
		num = Element('text', {
			'x': str(scale*period*200-20),
			'y': str((1-i/10)*200)
		})
		num.text = str(i)
		root.append(num)
	root.append(group)

	for event in events:
		evstart = event['period'][0]
		evend = event['period'][1]

		if evend < start or evstart > end:
			continue

		props = { 'x1': str(scale*evstart), 'x2': str(scale*evend), 'y1': '0', 'y2': '0' }
		titletext = 'unknown'

		if 'players' in event:
			y = str(len(event['players']))
			props['y1'] = y
			props['y2'] = y
			if len(event['players']) == 0:
				titletext = '(no one)'
			else:
				titletext = ', '.join(event['players'])

		if event['type'] == 'error':
			props['class'] = 'error'
			titletext = 'error'

		ev = Element('line', props)
		title = Element('title')
		title.text = '{} ({} — {})'.format(titletext, datetime.fromtimestamp(evstart).strftime('%Y-%m-%d %H:%M'), datetime.fromtimestamp(evend).strftime('%Y-%m-%d %H:%M'))
		ev.append(title)
		group.append(ev)

	return root

def dumpHTML(arg):
	with open('index.html', 'r') as f:
		html = f.read()
		print( html.format(arg) )

dumpHTML(tostring(getSVG(readEvents()), encoding='unicode'))