#!/usr/bin/python

import xml.etree.ElementTree as ET
import json
import fileinput
import sys

if len(sys.argv) == 2 and sys.argv[1] == '-h':
    print(sys.argv[0], ': Convert Practice Timer 1 data into Praceice Timer 2 data')
    print(sys.argv[0], ': usage: ', sys.argv[0], ' <input>')
    print(sys.argv[0], ': output will be on stdout. Input can also be read from stdin')
    exit(0)

xmlData = ""

for f in fileinput.input():
    xmlData += f

root = ET.fromstring(xmlData)

headers = root[1]

jo = []

for header in headers:
    ho = {
        "date": int(round(int(header.get('date')) / 1000)),
        "tasks": []
    }
    for task in header:
        to = {
            "name": task.get('name'),
            "length": int(task.get('length')),
            "start": int(round(int(task.get('start')) / 1000))
        }
        ho['tasks'].append(to)
    jo.append(ho)

print(json.dumps(jo))