from __future__ import annotations

from datetime import datetime, timezone
from types import SimpleNamespace
from uuid import uuid4

from fastapi.testclient import TestClient

from app.db.session import get_db
from app.main import create_app
from app.services.area_service import AreaService


def test_municipality_service_matches_all_official_names_and_nis(monkeypatch):
    records = [
        {"niscode": "63004", "namedut": "Baelen", "namefre": "Baelen", "nameger": "Balen"},
        {"niscode": "13025", "namedut": "Mol", "namefre": "Mol", "nameger": "Mol"},
    ]

    by_german_name, name_total = AreaService._filter_municipality_properties(records, "Balen", 20)
    by_nis, nis_total = AreaService._filter_municipality_properties(records, "13025", 20)

    assert name_total == 1
    assert by_german_name[0]["niscode"] == "63004"
    assert nis_total == 1
    assert by_nis[0]["name"] == "Mol"


def test_municipality_search_uses_authoritative_catalog(monkeypatch):
    project_id = uuid4()
    monkeypatch.setattr(
        AreaService,
        "search_municipalities",
        staticmethod(lambda _db, requested_project_id, query, limit: (
            [{"niscode": "13025", "name": "Mol", "name_nl": "Mol", "name_fr": "Mol", "name_de": "Mol"}],
            1,
        ) if requested_project_id == project_id and query == "mol" and limit == 12 else ([], 0)),
    )
    app = create_app()
    app.dependency_overrides[get_db] = lambda: object()
    try:
        response = TestClient(app).get(f"/api/v1/projects/{project_id}/areas/municipalities?query=mol&limit=12")
    finally:
        app.dependency_overrides.clear()

    assert response.status_code == 200
    assert response.json()["data"] == {
        "items": [{"niscode": "13025", "name": "Mol", "name_nl": "Mol", "name_fr": "Mol", "name_de": "Mol"}],
        "total": 1,
    }


def test_municipality_activation_returns_persisted_area(monkeypatch):
    project_id = uuid4()
    area_id = uuid4()
    area = SimpleNamespace(id=area_id, project_id=project_id)
    monkeypatch.setattr(AreaService, "activate_municipality", staticmethod(lambda _db, requested_project_id, niscode: area))
    monkeypatch.setattr(
        AreaService,
        "serialize_area",
        staticmethod(lambda _area: {
            "id": area_id,
            "project_id": project_id,
            "name": "Gemeente Mol - NIS 13025",
            "original_crs": "EPSG:4326",
            "area_m2": 114000000.0,
            "created_at": datetime(2026, 7, 26, tzinfo=timezone.utc),
            "geometry_type": "MultiPolygon",
            "geometry": {"type": "MultiPolygon", "coordinates": []},
        }),
    )
    app = create_app()
    app.dependency_overrides[get_db] = lambda: object()
    try:
        response = TestClient(app).post(f"/api/v1/projects/{project_id}/areas/municipalities/13025/activate", json={})
    finally:
        app.dependency_overrides.clear()

    assert response.status_code == 200
    assert response.json()["data"]["id"] == str(area_id)
    assert response.json()["data"]["name"] == "Gemeente Mol - NIS 13025"