import re

import _html
import _bs
import pytz
import datetime
# import time
import psycopg2.extras
from pprint import pprint
import arrow
import view


import warnings
try:
    warnings.simplefilter("ignore", arrow.factory.ArrowParseWarning)
except AttributeError:
    pass

"""
Modules _html and _bs4 contain specialized methods.
"""

local_timezones = {
    "NSW": "Australia/Sydney",
    "VIC": "Australia/Melbourne",
    "QLD": "Australia/Brisbane",
    "WA": "Australia/Perth",
    "SA": "Australia/Adelaide",
    "TAS": "Australia/Hobart",
    "ACT": "Australia/Sydney",
    "NT": "Australia/Darwin"}


def scrape_racingaustralia_main_page(row):
    this_url = """https://racingaustralia.horse/Home.aspx"""
    this_data = _html.get_page(this_url)
    venues_all = _bs.get_today_row(this_data, row)
    return venues_all


def scrape_racenet_main_page():
    this_url = """https://www.racenet.com.au/updates/scratchings"""
    this_data = _html.get_page(this_url)
    # print(this_data[:50])
    json = _bs.get_racenet_json(this_data)
    return json


def get_raw_scratchings(this_venue):
    this_raw_data = _html.get_page(this_venue.scratchings_url)
    return this_raw_data


def process_raw_data(this_raw_data, this_venue):
    """
    Processes the raw data from the Scratchings page to obtain meta data.
    this_venue is passed to _bs.process_scratchings() to create the inherited namedTuple
    :param this_raw_data:
    :param this_venue:
    :return:
    """
    race_day_info = _bs.get_meta_data(this_raw_data, this_venue)
    return race_day_info


def get_scratching_details(this_raw_data, this_venue):
    # this_data = _html.get_page(this_venue.scratchings_url)
    scratchings_info = _bs.process_scratchings(this_raw_data, this_venue)
    return scratchings_info


def convert_to_unixtime(dt_object):
    """
    Simple utility function that returns the unixtime from a timezone aware dateTime object
    :param dt_object:
    :return:
    """
    utc = pytz.UTC
    d = dt_object.astimezone(utc)

    epoch = datetime.datetime(1970, 1, 1, 0, 0, 0, tzinfo=pytz.UTC)
    ts = int((d - epoch).total_seconds())
    return ts


def convert_to_date(weird_string):
    """
    Converts a string like 'MONDAY 15 JUL' to a python datetime object
    :param weird_string:
    :return datetime object:
    """
    weird_string = re.sub(r' (\d) ', ' 0\1 ', weird_string)
    local_timezone = pytz.timezone('Australia/Sydney')
    now = datetime.datetime.now(local_timezone)
    calculated_date = datetime.datetime.strptime(str(now.year) + ' ' + weird_string, "%Y %A %d %b").date()
    # print(calculated_date)
    return calculated_date


def send_messages(scratches, source):
    long_message = ''

    message_string = '{} {}venue = {} {} {}-{} | race = {} starts at {} | {} UTC | horse = {}'

    for m in scratches:
        flag = ''
        if m.torn:
            flag = 'FLAGGED!! '
        pprint(m)
        message = message_string.format(source,
                                        flag,
                                        m.date.strftime('%a'),
                                        m.date,
                                        m.state,
                                        m.venue,
                                        m.race,
                                        m.time,
                                        m.utc,
                                        '{} {}'.format(m.horse_no, m.horse_display_name))
        print('this_message: {}'.format(message))
        # Append message if possible
        if len(long_message) + len(message) < 5997:
            if len(long_message) == 0:
                long_message = message
            else:
                long_message += '\n' + message
        else:
            # Send long message (max 6k characters)
            print('Sending very long message > {}'.format(len(long_message)))
            view.broadcast(long_message)
            # Best would be to now store horses that were just broadcast
            long_message = m

    # Send all messages
    if len(long_message) > 0:
        print('Sending long_message > {}'.format(len(long_message)))
        view.broadcast(long_message)


def store_scratched_horses(db, full_scratches):
    query = """INSERT INTO horses(venue, race_date, race, horse_no, horse_display_name) 
    VALUES(%s, %s, %s, %s, %s)
    ON CONFLICT(venue, race_date, race, horse_no) DO NOTHING;"""

    scratches_to_return = []
    regex = r'^INSERT \d+ (\d+)$'
    cur3 = db.cursor(cursor_factory=psycopg2.extras.NamedTupleCursor)
    for this_scratching in full_scratches:
        database_entry = (this_scratching.venue, this_scratching.date,
                          this_scratching.race, this_scratching.horse_no,
                          this_scratching.horse_display_name)
        cur3.execute(query, database_entry)
        match = re.match(regex, cur3.statusmessage)
        status = 0
        if match:
            status = int(match.group(1))
        if status > 0:
            print('Stored: {}'.format(database_entry))
            print(cur3.statusmessage)
            scratches_to_return.append(this_scratching)

    cur3.close()
    db.commit()
    return scratches_to_return


def get_race_from_races(this_haystack, needle_date, needle_venue, needle_race):
    """
    From the previous acquired database data this will return 'start_time',
    'utctime' and torn (boolean) where the date, venue and race are given.
    :param this_haystack:
    :param needle_date:
    :param needle_venue:
    :param needle_race:
    :return:
    """
    return_values = ()
    # needle_date = arrow.get(needle_date).date()
    # print('{} -> {}'.format(needle_date, needle_date.strftime('%Y-%m-%d')))
    for race in this_haystack:
        # pprint(race)
        # print(race.race_date == needle_date)
        # print('race.race_date == needle_date: {} == {}'.format(race.race_date, needle_date))
        # print('type(race.race_date) == type(needle_date): {} == {}'.format(type(race.race_date), type(needle_date)))
        # print(race.venue == needle_venue)
        # print(race.race == needle_race)
        if ((race.race_date == needle_date) and (race.venue == needle_venue) and (
                race.race == needle_race)):
            return_values = (race.start_time, race.utctime, race.torn)
            break
    return return_values


def get_relevant_races_from_database(db):
    query = """
        SELECT venue, start_time, race_date, utctime, race, torn FROM race_program 
        WHERE race_date >= %s;
    """
    # Run this query once and use resulting NamedTuple for data
    cur_races = db.cursor(cursor_factory=psycopg2.extras.NamedTupleCursor)
    today = arrow.utcnow().date()
    # print('today: {}'.format(today))
    cur_races.execute(query, (today,))
    races = cur_races.fetchall()
    # print('len(races): {}'.format(len(races)))
    # pprint(races)
    cur_races.close()
    return races