import json
import logging
import re
from pathlib import Path
from time import sleep

import requests
from bs4 import BeautifulSoup

PATTERN_CHAMPIONGG = re.compile(r'^\s+matchupData\.championData = (.*)$')
LOL_CHAMPS_DIR = r'C:\\League of Legends\\Config\\Champions\\'
HEADERS = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0'}

def getChampData(champ, position):
    page = requests.get('http://champion.gg/champion/%s/%s' % (champ, position), headers=HEADERS).text
    for line in page.split("\n"):
        if "matchupData.championData" in line:
            return json.loads(PATTERN_CHAMPIONGG.match(line).group(1))

def getChampsWithPositionsAndPatch():
    soup = BeautifulSoup(requests.get('http://champion.gg', headers=HEADERS).text, 'html.parser')

    patch = soup.find('div', class_='analysis-holder').find('strong').text

    champs = []
    for div in soup.find_all('div', class_='champ-height'):
        champ_name = div.find('span', class_='champion-name').text
        pos = [link['href'].split('/')[-1] for link in div.find_all('a', href=True)[1:]]
        champs.append({champ_name: pos })
    
    return (champs, patch)

def makeItemSet(data, label):
    return {
        "items": [{ "id": item['id'], "count": 1} for item in data['items']],
        "type": "%s (%.2f %% - %d games)" % (label, data['winPercent'] * 100, data['games'])
    }

def makeItemSetFromList(list, label):
    return {
        "items": [{ "id": str(id), "count": 1} for id in list],
        "type": "%s" % (label)
    }

def writeItemSet(id, pos, ver, data, path):
    logging.info('Writing item set for %s at %s' % (id, pos))

    item_set = {
        "map": "any",
        "blocks": [],
        "title": "CGG %s %s" % (pos, ver),
        "priority": False,
        "mode": "any",
        "type": "custom",
        "sortrank": 1,
        "champion": "%s" % id
    }

    if 'mostGames' in data['firstItems']:
        item_set['blocks'].append(makeItemSet(data['firstItems']['mostGames'], 'Most Frequent Starters'))
    if 'highestWinPercent' in data['firstItems']:
        item_set['blocks'].append(makeItemSet(data['firstItems']['highestWinPercent'], 'Highest Win % Starters'))
    if 'mostGames' in data['items']:
        item_set['blocks'].append(makeItemSet(data['items']['mostGames'], 'Most Frequent Core Build'))
    if 'highestWinPercent' in data['items']:
        item_set['blocks'].append(makeItemSet(data['items']['highestWinPercent'], 'Highest Win % Core Build'))
    
    item_set['blocks'].append(makeItemSetFromList([2003, 2004, 2055, 2031, 2032, 2033, 2138, 2140, 2139], "Consumables"))
    item_set['blocks'].append(makeItemSetFromList([3340, 3364, 3363], "Trinkets"))

    with open('%sCGG_%s_%s.json' % (path, id, pos), 'w', newline='\n') as out:  
        json.dump(item_set, out, indent=4)

def main():
    logging.basicConfig(format='%(asctime)s:%(levelname)s:%(message)s', level=logging.INFO)

    logging.info('CGG Item Sets')

    ver = requests.get('https://ddragon.leagueoflegends.com/realms/euw.json', headers=HEADERS).json()['v']
    data = requests.get('http://ddragon.leagueoflegends.com/cdn/%s/data/en_US/champion.json' % ver, headers=HEADERS).json()['data']
    lol_champs = [data[i] for i in data]

    logging.info('LoL version: %s' % ver)
    logging.info('LoL numbers of champs: %d' % len(lol_champs))

    (champs, patch) = getChampsWithPositionsAndPatch()

    logging.info('CGG version: %s' % patch)
    logging.info('CGG numbers of champs: %d' % len(champs))

    for champ in champs:
        for name, positions in champ.items():
            c = next((x for x in lol_champs if x['name'] == name), None)
            if c is not None:
                path = '%s%s\\Recommended\\' % (LOL_CHAMPS_DIR, name)
                Path(path).mkdir(parents=True, exist_ok=True)
                for pos in positions:
                    writeItemSet(c['id'], pos, patch, getChampData(c['id'], pos), path)
                    sleep(.3)
            else:
                logging.error('%s not found in LoL champs' % name)

if __name__ == "__main__":
    main()