"""
End-to-end tests for the OpenAPI-first Veterinary Clinic example app.

These tests validate that all CRUD operations behave correctly
against the in-memory mock data store using Pydantic models.
"""

from fastapi.testclient import TestClient

from main import app
from openapi_first.loader import load_openapi
from openapi_first.client import OpenAPIClient


test_client = TestClient(app)
spec = load_openapi("openapi.yaml")
client = OpenAPIClient(
    spec=spec,
    base_url="http://testserver",
    client=test_client,
)

# Bootstrap CSRF token via a safe GET request
_ = client.list_parents(query={"limit": 1})
_CSRF_TOKEN = client.client.cookies.get("csrftoken")


def _csrf_headers() -> dict:
    return {"X-CSRFToken": _CSRF_TOKEN} if _CSRF_TOKEN else {}


def test_list_parents():
    """List parents returns paginated response."""
    response = client.list_parents(query={"limit": 10, "offset": 0})
    assert response.status_code == 200
    data = response.json()
    assert "total" in data
    assert "items" in data


def test_create_parent():
    """Creating a parent returns 201 with the created entity."""
    payload = {"name": "Alice", "email": "alice@example.com"}
    response = client.create_parent(body=payload, headers=_csrf_headers())
    assert response.status_code == 201
    parent = response.json()
    assert parent["name"] == "Alice"
    assert "id" in parent


def test_get_parent():
    """Get parent by ID returns the entity."""
    parent = client.create_parent(body={"name": "Bob", "email": "bob@example.com"}, headers=_csrf_headers()).json()
    response = client.get_parent(path_params={"id": parent["id"]})
    assert response.status_code == 200
    assert response.json()["name"] == "Bob"


def test_update_parent():
    """Update parent replaces its values."""
    parent = client.create_parent(body={"name": "Carol", "email": "carol@example.com"}, headers=_csrf_headers()).json()
    payload = {"name": "Carol Smith", "email": "carol.smith@example.com"}
    response = client.update_parent(path_params={"id": parent["id"]}, body=payload, headers=_csrf_headers())
    assert response.status_code == 200
    assert response.json()["name"] == "Carol Smith"


def test_delete_parent():
    """Delete parent returns 204 and removes the entity."""
    parent = client.create_parent(body={"name": "Dave", "email": "dave@example.com"}, headers=_csrf_headers()).json()
    response = client.delete_parent(path_params={"id": parent["id"]}, headers=_csrf_headers())
    assert response.status_code == 204


def test_list_vets():
    """List vets returns paginated response."""
    response = client.list_vets(query={"limit": 10, "offset": 0})
    assert response.status_code == 200
    data = response.json()
    assert "total" in data
    assert "items" in data


def test_create_vet():
    """Creating a vet returns 201."""
    payload = {"name": "Dr. Smith", "specialty": "Surgery", "email": "smith@clinic.com"}
    response = client.create_vet(body=payload, headers=_csrf_headers())
    assert response.status_code == 201
    assert response.json()["name"] == "Dr. Smith"


def test_list_treatments():
    """List treatments returns an array."""
    response = client.list_treatments()
    assert response.status_code == 200
    assert isinstance(response.json(), list)


def test_create_treatment():
    """Creating a treatment returns 201."""
    payload = {"label": "Vaccination", "description": "Annual vaccination"}
    response = client.create_treatment(body=payload, headers=_csrf_headers())
    assert response.status_code == 201
    assert response.json()["label"] == "Vaccination"


def test_create_pet():
    """Creating a pet links FK references."""
    parent = client.create_parent(body={"name": "Owner", "email": "owner@example.com"}, headers=_csrf_headers()).json()
    payload = {"name": "Fido", "species": "dog", "parent_ids": [parent["id"]]}
    response = client.create_pet(body=payload, headers=_csrf_headers())
    assert response.status_code == 201
    assert response.json()["name"] == "Fido"


def test_upload_pet_photo():
    """Upload pet photo returns 200."""
    pet = client.create_pet(body={"name": "PhotoPet", "species": "cat", "parent_ids": []}, headers=_csrf_headers()).json()
    response = client.client.post(
        f"http://testserver/pets/{pet['id']}",
        files={"file": ("test.jpg", b"fake-image-data", "image/jpeg")},
        headers=_csrf_headers(),
    )
    assert response.status_code == 200


def test_list_appointments():
    """List appointments returns paginated response with filter params."""
    response = client.list_appointments(query={"limit": 10, "offset": 0})
    assert response.status_code == 200
    data = response.json()
    assert "total" in data
    assert "items" in data


def test_full_appointment_lifecycle():
    """Create a parent, vet, treatment, pet, then an appointment."""
    parent = client.create_parent(body={"name": "Eve", "email": "eve@example.com"}, headers=_csrf_headers()).json()
    vet = client.create_vet(body={"name": "Dr. Jones", "specialty": "Dentistry", "email": "jones@clinic.com"}, headers=_csrf_headers()).json()
    treatment = client.create_treatment(body={"label": "Cleaning", "description": "Teeth cleaning"}, headers=_csrf_headers()).json()
    pet = client.create_pet(body={"name": "Max", "species": "dog", "parent_ids": [parent["id"]]}, headers=_csrf_headers()).json()

    payload = {
        "date": "2025-06-01T10:00:00",
        "pet_id": pet["id"],
        "vet_id": vet["id"],
        "treatment_id": treatment["id"],
    }
    response = client.create_appointment(body=payload, headers=_csrf_headers())
    assert response.status_code == 201
    appointment = response.json()
    assert appointment["pet_id"] == pet["id"]

    # Fetch it back
    get_resp = client.get_appointment(path_params={"id": appointment["id"]})
    assert get_resp.status_code == 200

    # Delete it
    del_resp = client.delete_appointment(path_params={"id": appointment["id"]}, headers=_csrf_headers())
    assert del_resp.status_code == 204