This script calculates winners data of sscsldh (LuvLdh) Facebook page.

getLikes.py

from decouple import config
import facebook
import requests
import re
import json

def getMaximiumLikes(api, posts):
    likesdic = {}
    usernamedic = {}
    for post in posts:
        response = requests.get("https://graph.facebook.com/v2.11/" + post["id"] + "?fields=reactions.summary(true).limit(0),permalink_url&access_token=" + config('PAGE_ACCESS_TOKEN'))
        response = response.json()
        likes = int(response["reactions"]["summary"]["total_count"])

        username = re.search('Username: (.*)\n', post["message"]).group(1)
        user_profile = re.search('\n(.*)\nCategory:', post["message"]).group(1)
        post_img = api.get_object(post["id"], fields="link")["link"]

        usernamedic = {'profile': user_profile, 'img': post_img}

        if not likes in likesdic:
            likesdic[likes] = [{username: usernamedic}]
        else:
            likesdic[likes].append(usernamedic)
    return likesdic

def updateContestWinners():
    access_token = config('PAGE_ACCESS_TOKEN')
    api = facebook.GraphAPI(access_token)
    posts = api.get_object("me", fields="posts")['posts']['data']
    PhotographyPosts = []
    ContentWritingPosts = []
    SouvenirPosts = []
    json_dic = {}
    for post in posts:
        try:
            if "Category: Photography Contest #LuvLdh #sscsLdh" in post['message']:
                PhotographyPosts.append(post)
            elif "Content Writing Contest #LuvLdh #sscsLdh" in post['message']:
                ContentWritingPosts.append(post)
            elif "Souvenir Contest #LuvLdh #sscsLdh" in post['message']:
                SouvenirPosts.append(post)
        except KeyError:
            continue
    json_dic["PhotographyContest"] = getMaximiumLikes(api, PhotographyPosts)
    json_dic["ContentWritingContest"] =  getMaximiumLikes(api, ContentWritingPosts)
    json_dic["SouvenirContest"] =  getMaximiumLikes(api, SouvenirPosts)
    with open('./WinnersData.json', 'w') as outfile:
        json.dump(json_dic, outfile)

updateContestWinners()