from datetime import datetime

failure_sensors = [
    {'id': 45696, 'starting_date': datetime(2024, 1, 5), 'ending_date': datetime(2024, 1, 20), 'update_date': datetime(2024, 2, 6)},
    {'id': 45603, 'starting_date': datetime(2023, 10, 31), 'ending_date': datetime(2023, 12, 29), 'update_date': datetime(2024, 1, 29, 12, 43, 10)},
    {'id': 45497, 'starting_date': datetime(2023, 10, 28), 'ending_date': datetime(2023, 12, 31), 'update_date': datetime(2024, 1, 29, 12, 31, 30)},
    {'id': 45397, 'starting_date': datetime(2023, 10, 28), 'ending_date': datetime(2023, 12, 31), 'update_date': datetime(2024, 1, 29, 11, 47, 12)},
    {'id': 45319, 'starting_date': datetime(2023, 10, 30), 'ending_date': datetime(2023, 12, 14), 'update_date': datetime(2024, 1, 29, 10, 45, 30)}
]


prev_starting_date = None
min_start_date = failure_sensors[0]["starting_date"]
max_end_date = failure_sensors[0]["ending_date"]
for f_s in failure_sensors:
    if not f_s["ending_date"]:
        continue

    if prev_starting_date:
        delta_days = abs((prev_starting_date - f_s["ending_date"]).days)
        if delta_days < 28:
            print(f_s["starting_date"])
            print(max_end_date)
            print('----')
            print(f_s["ending_date"])
            print(min_start_date)
            print('----')
            # print(f_s["starting_date"] <= max_end_date and min_start_date <= f_s["ending_date"])
            # if f_s["starting_date"] <= max_end_date and min_start_date <= f_s["ending_date"]:
            if f_s["starting_date"] < min_start_date:
                min_start_date = f_s["starting_date"]

            if f_s["ending_date"] > max_end_date:
                max_end_date = f_s["ending_date"]

    prev_starting_date = f_s["starting_date"]

print(min_start_date)