# backend/tests/test_pl_driver_plan_service.py
from datetime import date, datetime

from app.api.pl.public_transport import _history_matches_date
from app.services.pl_driver_plan_service import transport_visible_to_personnel
from app.services.pl_public_transport_helpers import (
    _accumulate_calendar_day_counts,
    _parse_calendar_month,
    _plan_hit_dates,
)


def test_history_date_or_logic():
    day = date(2026, 9, 13)
    assert _history_matches_date(datetime(2026, 9, 13, 9, 0), None, day) is True
    assert _history_matches_date(None, datetime(2026, 9, 13, 18, 0), day) is True
    assert (
        _history_matches_date(
            datetime(2026, 9, 12, 9, 0), datetime(2026, 9, 14, 18, 0), day
        )
        is False
    )


def test_visible_as_driver_or_escort():
    class T:
        def __init__(self, driver_id=None, escort_id=None):
            self.driver_id = driver_id
            self.escort_id = escort_id

    assert transport_visible_to_personnel(T(driver_id="p1"), "p1") is True
    assert transport_visible_to_personnel(T(escort_id="p1"), "p1") is True
    assert transport_visible_to_personnel(T(driver_id="p2", escort_id="p3"), "p1") is False
    assert transport_visible_to_personnel(T(), "p1") is False
    assert transport_visible_to_personnel(T(driver_id="p1"), "") is False


def test_parse_calendar_month_ok():
    start, end = _parse_calendar_month("2026-09")
    assert start == date(2026, 9, 1)
    assert end == date(2026, 9, 30)


def test_parse_calendar_month_rejects_bad():
    assert _parse_calendar_month("") is None
    assert _parse_calendar_month("2026-9") is None
    assert _parse_calendar_month("2026-13") is None


def test_plan_hit_dates_driver_style_excludes_plan_date():
    class P:
        plan_date = date(2026, 9, 1)
        pickup_time = datetime(2026, 9, 10, 8, 0)
        delivery_time = datetime(2026, 9, 12, 18, 0)

    assert _plan_hit_dates(P(), include_plan_date=False) == {
        date(2026, 9, 10),
        date(2026, 9, 12),
    }


def test_accumulate_calendar_day_counts_within_month():
    class P:
        def __init__(self, pickup, delivery, plan_date=None):
            self.plan_date = plan_date
            self.pickup_time = pickup
            self.delivery_time = delivery

    plans = [
        P(datetime(2026, 9, 10, 8, 0), datetime(2026, 9, 12, 18, 0)),
        P(datetime(2026, 9, 10, 9, 0), None),
        P(datetime(2026, 8, 31, 8, 0), datetime(2026, 9, 1, 18, 0)),
    ]
    counts = _accumulate_calendar_day_counts(
        plans,
        month_start=date(2026, 9, 1),
        month_end=date(2026, 9, 30),
        include_plan_date=False,
    )
    assert counts == {"2026-09-01": 1, "2026-09-10": 2, "2026-09-12": 1}