from unittest.mock import AsyncMock
from uuid import uuid4

import pytest
from fastapi import FastAPI
from fastapi.testclient import TestClient

from app.api.v1.endpoints import place_search
from app.api.v1.rest_router import api_router
from app.auth.project_dependencies import ProjectContext, get_project_context
from app.domain.schemas.place_search import PlaceSearchItem, PlaceSearchResponse
from app.services.place_search import PlaceSearchError


@pytest.fixture
def app():
    application = FastAPI()
    application.include_router(api_router, prefix="/api/v1")
    application.dependency_overrides[get_project_context] = lambda: ProjectContext(uuid4(), "demo", uuid4(), "viewer")
    return application


def test_viewer_can_search_with_existing_project_read_permission(app, monkeypatch):
    service = AsyncMock(return_value=PlaceSearchResponse(items=[PlaceSearchItem(
        id="place-1", name="南桥路", address="上海市奉贤区南桥路", longitude=121.44, latitude=31.22,
    )], total=1))
    monkeypatch.setattr(place_search, "search_tianditu_places", service)
    response = TestClient(app).post("/api/v1/place-search-requests", json={"keyword": "南桥路"})
    assert response.status_code == 200
    assert response.json()["items"][0]["name"] == "南桥路"
    assert response.json()["region"] == "奉贤区"
    assert set(response.json()) == {"items", "total", "truncated", "region"}
    assert service.await_args.args[0].keyword == "南桥路"


@pytest.mark.parametrize("status", [502, 503, 504])
def test_endpoint_preserves_provider_failure_status(app, monkeypatch, status):
    monkeypatch.setattr(place_search, "search_tianditu_places", AsyncMock(side_effect=PlaceSearchError(status, "查询暂不可用")))
    response = TestClient(app).post("/api/v1/place-search-requests", json={"keyword": "南桥路"})
    assert response.status_code == status and response.json()["detail"] == "查询暂不可用"


@pytest.mark.parametrize("extra", [{"region": "北京市"}, {"specify": "156310104"}, {"offset": 0}, {"limit": 10}])
def test_scope_and_result_limit_cannot_be_overridden(app, monkeypatch, extra):
    service = AsyncMock()
    monkeypatch.setattr(place_search, "search_tianditu_places", service)
    response = TestClient(app).post("/api/v1/place-search-requests", json={"keyword": "南桥路", **extra})
    assert response.status_code == 422 and not service.called


def test_search_denies_users_without_project_read_permission(app, monkeypatch):
    app.dependency_overrides[get_project_context] = lambda: ProjectContext(uuid4(), "demo", uuid4(), "none")
    service = AsyncMock()
    monkeypatch.setattr(place_search, "search_tianditu_places", service)
    response = TestClient(app).post("/api/v1/place-search-requests", json={"keyword": "南桥路"})
    assert response.status_code == 403 and not service.called


def test_search_contract_has_typed_results_and_required_project_header(app):
    contract = app.openapi()
    operation = contract["paths"]["/api/v1/place-search-requests"]["post"]
    assert any(param["name"] == "X-Project-Id" and param["required"] for param in operation["parameters"])
    assert operation["responses"]["200"]["content"]["application/json"]["schema"]["$ref"].endswith("PlaceSearchResponse")
    assert set(contract["components"]["schemas"]["PlaceSearchRequest"]["properties"]) == {"keyword"}
    assert contract["components"]["schemas"]["PlaceSearchResponse"]["properties"]["items"]["maxItems"] == 10