"""Tests for the scheduling fixture provider."""

from __future__ import annotations

import json
import pathlib
import tempfile

import pytest

import sys
sys.path.insert(0, str(pathlib.Path(__file__).resolve().parents[2] / "skills" / "_lib"))

from lumina_skills.domain import Appointment, AppointmentStatus
from lumina_skills.providers.scheduling.fixture_provider import (
    load_fixtures,
    load_fixture_metadata,
)

# Path to the real fixture file.
_FIXTURE_PATH = pathlib.Path(__file__).resolve().parents[2] / "data" / "fixtures" / "scheduling" / "claire_bennett_2026-07-28.json"


def _make_fixture_file(tmp_path: pathlib.Path, data: dict) -> pathlib.Path:
    """Write a fixture dict to a temp JSON file."""
    p = tmp_path / "test_fixture.json"
    p.write_text(json.dumps(data), encoding="utf-8")
    return p


# ── load_fixtures ──────────────────────────────────────────────────────────

def test_load_real_fixture():
    """Load the Claire Bennett fixture file."""
    apts = load_fixtures(_FIXTURE_PATH)
    assert len(apts) == 7  # 7 appointments in the fixture
    assert all(isinstance(a, Appointment) for a in apts)


def test_load_fixture_statuses():
    """Fixture statuses are correctly parsed."""
    apts = load_fixtures(_FIXTURE_PATH)
    statuses = {a.appointment_id: a.status for a in apts}
    assert statuses["APT-001"] == AppointmentStatus.CONFIRMED
    assert statuses["APT-002"] == AppointmentStatus.PENDING
    assert statuses["APT-007"] == AppointmentStatus.CANCELLED


def test_load_fixture_needs_confirmation():
    """needs_confirmation flag is loaded from fixture."""
    apts = load_fixtures(_FIXTURE_PATH)
    flags = {a.appointment_id: a.needs_confirmation for a in apts}
    assert flags["APT-001"] is False
    assert flags["APT-002"] is True
    assert flags["APT-004"] is True


def test_load_fixture_notes():
    """Notes are loaded from fixture."""
    apts = load_fixtures(_FIXTURE_PATH)
    notes = {a.appointment_id: a.notes for a in apts}
    assert "ammonia" in notes["APT-001"].lower()
    assert "Wedding" in notes["APT-002"]


def test_load_fixture_missing_file(tmp_path: pathlib.Path):
    """FileNotFoundError for missing fixture."""
    with pytest.raises(FileNotFoundError):
        load_fixtures(tmp_path / "nonexistent.json")


def test_load_fixture_empty_appointments(tmp_path: pathlib.Path):
    """Empty appointments list returns empty list."""
    data = {"salon_name": "Test", "date": "2026-01-01", "appointments": []}
    path = _make_fixture_file(tmp_path, data)
    apts = load_fixtures(path)
    assert apts == []


def test_load_fixture_default_status(tmp_path: pathlib.Path):
    """Missing status field defaults to PENDING (via .get default)."""
    data = {
        "appointments": [{
            "id": "APT-X",
            "start": "2026-01-01T09:00:00",
            "end": "2026-01-01T10:00:00",
            "client_name": "Test",
            "service_name": "Test",
            "staff_name": "Test",
            # No status field.
        }]
    }
    path = _make_fixture_file(tmp_path, data)
    apts = load_fixtures(path)
    assert apts[0].status == AppointmentStatus.PENDING


def test_load_fixture_unknown_status_raises(tmp_path: pathlib.Path):
    """Unknown status string raises ValueError."""
    data = {
        "appointments": [{
            "id": "APT-X",
            "start": "2026-01-01T09:00:00",
            "end": "2026-01-01T10:00:00",
            "client_name": "Test",
            "service_name": "Test",
            "staff_name": "Test",
            "status": "typo_status",
        }]
    }
    path = _make_fixture_file(tmp_path, data)
    with pytest.raises(ValueError, match="Unknown appointment status"):
        load_fixtures(path)


def test_load_fixture_default_needs_confirmation(tmp_path: pathlib.Path):
    """Missing needs_confirmation defaults to False."""
    data = {
        "appointments": [{
            "id": "APT-X",
            "start": "2026-01-01T09:00:00",
            "end": "2026-01-01T10:00:00",
            "client_name": "Test",
            "service_name": "Test",
            "staff_name": "Test",
            "status": "confirmed",
            # No needs_confirmation field.
        }]
    }
    path = _make_fixture_file(tmp_path, data)
    apts = load_fixtures(path)
    assert apts[0].needs_confirmation is False


def test_load_fixture_malformed_json(tmp_path: pathlib.Path):
    """ValueError for invalid JSON."""
    p = tmp_path / "bad.json"
    p.write_text("{not valid json}", encoding="utf-8")
    with pytest.raises(ValueError):
        load_fixtures(p)


# ── load_fixture_metadata ─────────────────────────────────────────────────

def test_load_metadata():
    meta = load_fixture_metadata(_FIXTURE_PATH)
    assert meta["salon_name"] == "Lumina Hair Studio & Spa"
    assert meta["date"] == "2026-07-28"
    assert meta["business_hours"]["open"] == "09:00"
    assert meta["business_hours"]["close"] == "18:00"
    assert len(meta["staff"]) == 2


def test_load_metadata_missing_file(tmp_path: pathlib.Path):
    with pytest.raises(FileNotFoundError):
        load_fixture_metadata(tmp_path / "nonexistent.json")