import csv
import json
import os
import sys


base_dir = os.path.dirname(os.path.realpath(__file__))
asana_data_json = os.path.join(base_dir, './data/data_asana.json')

sys.stdout.reconfigure(encoding='utf-8')


def extract_unique_names_and_ids(data):
    """ Получение из json-файла данных о пользователях """

    unique_names = set()
    unique_ids = set()

    for item in data["data"]:
        assignee = item["assignee"]
        followers = item["followers"]

        if assignee:
            unique_names.add(assignee["name"])
            unique_ids.add(assignee["gid"])

        if followers:
            for follower in followers:
                unique_names.add(follower["name"])
                unique_ids.add(follower["gid"])

    return unique_names, unique_ids


def export_to_csv(unique_names, unique_ids):
    with open("output.csv", "w", newline="") as csvfile:
        writer = csv.writer(csvfile, delimiter=",")
        writer.writerow(["Name", "ID"])

        for name, id in zip(unique_names, unique_ids):
            writer.writerow([name, id])


file = open(asana_data_json, "r", encoding="utf8")
json_data = json.loads(file.read())

unique_names, unique_ids = extract_unique_names_and_ids(json_data)
export_to_csv(unique_names, unique_ids)