import json
import csv


DATA_ASANA = './data/data_asana.json'


def get_assignee_and_followers(asana_data):
    """ Получение из json-файла данных о пользователях """

    with open('asana_data', 'r') as file:
        data = json.load(file)

        assignees = set()
        followers = set()

    for item in data:
        assignee = item.get('assignee')
        follower = item.get('followers')

        if assignee:
            assignees.add(assignee)
        if follower:
            followers.add(follower)

    with open('output.csv', 'w', newline='') as file:
        writer = csv.writer(file, delimiter=',')
        writer.writerow(["Assignee", "Follower"])

        for assignee in assignees:
            writer.writerow([assignee, ""])

        for follower in followers:
            writer.writerow(["", follower])


get_assignee_and_followers(DATA_ASANA)