from __future__ import annotations

import app.core.service as core_module
from app.config import get_settings
from app.core.service import CoreAgentService


class _FakeFreeBusy:
    def __init__(self, payload: dict[str, object]) -> None:
        self.payload = payload

    def query(self, body: dict[str, object]) -> _FakeFreeBusy:
        return self

    def execute(self) -> dict[str, object]:
        return self.payload


class _FakeCalendarService:
    def __init__(self, payload: dict[str, object]) -> None:
        self._freebusy = _FakeFreeBusy(payload)

    def freebusy(self) -> _FakeFreeBusy:
        return self._freebusy


def test_core_meeting_intervals_maps_result(monkeypatch) -> None:
    fake_service = _FakeCalendarService({"calendars": {"primary": {"busy": []}}})
    monkeypatch.setattr(core_module, "build_calendar_service", lambda _: fake_service)

    service = CoreAgentService(settings=get_settings())
    result = service.available_meeting_intervals(
        start="2026-03-10T08:00:00+01:00",
        end="2026-03-10T10:00:00+01:00",
        calendar_ids=["primary"],
    )

    assert result.timezone == "Europe/Paris"
    assert result.checked_calendars == ["primary"]
    assert result.meeting_intervals == [
        core_module.CoreMeetingInterval(
            start="2026-03-10T08:30:00+01:00",
            end="2026-03-10T10:00:00+01:00",
        )
    ]