"""Integration tests for /api/stations endpoints."""
import pytest
from httpx import AsyncClient

from src.backend.tests.conftest import auth_headers, create_test_recipe


async def test_list_stations_requires_auth(client: AsyncClient):
    resp = await client.get("/api/stations")
    assert resp.status_code == 401


async def test_create_station_as_admin(client: AsyncClient, admin_user):
    resp = await client.post(
        "/api/stations",
        headers=auth_headers(admin_user),
        json={"code": "ST-API", "name": "Via API"},
    )
    assert resp.status_code == 201, resp.text
    body = resp.json()
    assert body["code"] == "ST-API"
    assert body["active"] is True
    assert body["id"] > 0


async def test_create_station_non_admin_is_403(client: AsyncClient, maker_user):
    resp = await client.post(
        "/api/stations",
        headers=auth_headers(maker_user),
        json={"code": "ST-NO", "name": "No"},
    )
    assert resp.status_code == 403


async def test_update_station(client: AsyncClient, admin_user):
    created = await client.post(
        "/api/stations",
        headers=auth_headers(admin_user),
        json={"code": "ST-UP", "name": "Old"},
    )
    station_id = created.json()["id"]
    resp = await client.put(
        f"/api/stations/{station_id}",
        headers=auth_headers(admin_user),
        json={"name": "New", "active": False},
    )
    assert resp.status_code == 200
    body = resp.json()
    assert body["name"] == "New"
    assert body["active"] is False


async def test_delete_station(client: AsyncClient, admin_user):
    created = await client.post(
        "/api/stations",
        headers=auth_headers(admin_user),
        json={"code": "ST-D", "name": "D"},
    )
    sid = created.json()["id"]
    resp = await client.delete(
        f"/api/stations/{sid}", headers=auth_headers(admin_user),
    )
    assert resp.status_code == 204
    again = await client.get(
        f"/api/stations/{sid}", headers=auth_headers(admin_user),
    )
    assert again.status_code == 404


async def test_assign_and_unassign_recipe(
    client: AsyncClient, admin_user, db_session,
):
    recipe = await create_test_recipe(db_session, user_id=admin_user.id, code="REC-AS")
    await db_session.commit()
    created = await client.post(
        "/api/stations",
        headers=auth_headers(admin_user),
        json={"code": "ST-ASSIGN", "name": "A"},
    )
    sid = created.json()["id"]
    a = await client.post(
        f"/api/stations/{sid}/recipes",
        headers=auth_headers(admin_user),
        json={"recipe_id": recipe.id},
    )
    assert a.status_code == 201
    r = await client.get(
        f"/api/stations/{sid}/recipes",
        headers=auth_headers(admin_user),
    )
    assert r.status_code == 200
    assert [rec["code"] for rec in r.json()] == ["REC-AS"]
    u = await client.delete(
        f"/api/stations/{sid}/recipes/{recipe.id}",
        headers=auth_headers(admin_user),
    )
    assert u.status_code == 204
    r2 = await client.get(
        f"/api/stations/{sid}/recipes",
        headers=auth_headers(admin_user),
    )
    assert r2.json() == []


async def test_list_recipes_by_station_code(
    client: AsyncClient, admin_user, measurement_tec_user, db_session,
):
    recipe = await create_test_recipe(db_session, user_id=admin_user.id, code="REC-BC")
    await db_session.commit()
    created = await client.post(
        "/api/stations",
        headers=auth_headers(admin_user),
        json={"code": "ST-BC", "name": "BC"},
    )
    sid = created.json()["id"]
    await client.post(
        f"/api/stations/{sid}/recipes",
        headers=auth_headers(admin_user),
        json={"recipe_id": recipe.id},
    )
    resp = await client.get(
        "/api/stations/by-code/ST-BC/recipes",
        headers=auth_headers(measurement_tec_user),
    )
    assert resp.status_code == 200
    assert [r["code"] for r in resp.json()] == ["REC-BC"]


async def test_list_recipes_by_unknown_code_404(
    client: AsyncClient, measurement_tec_user,
):
    resp = await client.get(
        "/api/stations/by-code/ST-DOES-NOT-EXIST/recipes",
        headers=auth_headers(measurement_tec_user),
    )
    assert resp.status_code == 404


async def test_admin_can_list_stations(client: AsyncClient, admin_user):
    await client.post(
        "/api/stations",
        headers=auth_headers(admin_user),
        json={"code": "ST-L1", "name": "A"},
    )
    await client.post(
        "/api/stations",
        headers=auth_headers(admin_user),
        json={"code": "ST-L2", "name": "B", "active": False},
    )
    resp = await client.get("/api/stations", headers=auth_headers(admin_user))
    assert resp.status_code == 200
    codes = {s["code"] for s in resp.json()}
    assert {"ST-L1", "ST-L2"}.issubset(codes)

    resp_active = await client.get(
        "/api/stations?active_only=true", headers=auth_headers(admin_user),
    )
    assert resp_active.status_code == 200
    active_codes = {s["code"] for s in resp_active.json()}
    assert "ST-L1" in active_codes
    assert "ST-L2" not in active_codes


async def test_assign_recipe_not_found_returns_404(
    client: AsyncClient, admin_user,
):
    created = await client.post(
        "/api/stations",
        headers=auth_headers(admin_user),
        json={"code": "ST-NR", "name": "NR"},
    )
    sid = created.json()["id"]
    resp = await client.post(
        f"/api/stations/{sid}/recipes",
        headers=auth_headers(admin_user),
        json={"recipe_id": 99999},
    )
    assert resp.status_code == 404


async def test_duplicate_assignment_returns_409(
    client: AsyncClient, admin_user, db_session,
):
    recipe = await create_test_recipe(db_session, user_id=admin_user.id, code="REC-DUP")
    await db_session.commit()
    created = await client.post(
        "/api/stations",
        headers=auth_headers(admin_user),
        json={"code": "ST-DUP-A", "name": "Dup"},
    )
    sid = created.json()["id"]
    first = await client.post(
        f"/api/stations/{sid}/recipes",
        headers=auth_headers(admin_user),
        json={"recipe_id": recipe.id},
    )
    assert first.status_code == 201
    second = await client.post(
        f"/api/stations/{sid}/recipes",
        headers=auth_headers(admin_user),
        json={"recipe_id": recipe.id},
    )
    assert second.status_code == 409
