from collections import OrderedDict
import datetime
import json
import os.path

__pdoc__ = {}

_sched_json_file = os.path.join(os.path.dirname(__file__), 'schedule.json')


def _create_schedule(jsonf=None):
    """
    Returns an ordered dict of schedule data from the schedule.json
    file, where games are ordered by the date and time that they
    started. Keys in the dictionary are GSIS ids and values are
    dictionaries with the following keys: week, month, year, home,
    away, wday, gamekey, season_type, time.
    """
    day = 60 * 60 * 24
    if jsonf is None:
        jsonf = _sched_json_file
    try:
        data = json.loads(open(jsonf).read())
    except IOError:
        return OrderedDict()

    d = OrderedDict()
    for gsis_id, info in data.get('games', []):
        d[gsis_id] = info
    last_updated = datetime.datetime.utcfromtimestamp(data.get('time', 0))

    if (datetime.datetime.utcnow() - last_updated).total_seconds() >= day:
        # Only try to update if we can write to the schedule file.
        if os.access(jsonf, os.W_OK):
            import nflgame.live
            import nflgame.update_sched
            year, week = nflgame.live.current_year_and_week()
            phase = nflgame.live._cur_season_phase
            nflgame.update_sched.update_week(d, year, phase, week)
            nflgame.update_sched.write_schedule(jsonf, d)
            last_updated = datetime.datetime.now()
    return d, last_updated

games, last_updated = _create_schedule()

__pdoc__['nflgame.sched.games'] = """
An ordered dict of schedule data, where games are ordered by the date
and time that they started. Keys in the dictionary are GSIS ids and
values are dictionaries with the following keys: week, month, year,
home, away, wday, gamekey, season_type, time.
"""

__pdoc__['nflgame.sched.last_updated'] = """
A `datetime.datetime` object representing the last time the schedule
was updated.
"""