from typing import cast

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


def test_collection_crud_and_confirmation(authenticated: tuple[TestClient, str]) -> None:
    client, csrf = authenticated
    headers = {"X-CSRF-Token": csrf}
    created = client.post("/collections", json={"name": "Books"}, headers=headers)
    assert created.status_code == 201
    collection_id = created.json()["id"]
    assert client.get(f"/collections/{collection_id}").json()["name"] == "Books"
    assert client.get("/collections").json()["total"] == 1
    renamed = client.patch(
        f"/collections/{collection_id}", json={"name": "Reading"}, headers=headers
    )
    assert renamed.status_code == 200
    assert renamed.json()["name"] == "Reading"
    denied = client.delete(
        f"/collections/{collection_id}", params={"confirmation": "Books"}, headers=headers
    )
    assert denied.status_code == 409
    deleted = client.delete(
        f"/collections/{collection_id}", params={"confirmation": "Reading"}, headers=headers
    )
    assert deleted.status_code == 202
    assert client.get(f"/collections/{collection_id}").status_code == 404


def test_collection_list_validates_pagination(authenticated: tuple[TestClient, str]) -> None:
    client, _ = authenticated
    response = client.get("/collections", params={"limit": 201})
    assert response.status_code == 422
    assert response.json()["error"]["code"] == "validation_failed"


def test_empty_create_and_rename_do_not_enqueue_jobs(
    authenticated: tuple[TestClient, str]
) -> None:
    client, csrf = authenticated
    headers = {"X-CSRF-Token": csrf}
    created = client.post("/collections", json={"name": "Books"}, headers=headers)
    collection_id = created.json()["id"]
    client.patch(f"/collections/{collection_id}", json={"name": "Reading"}, headers=headers)
    with cast(FastAPI, client.app).state.database.connect() as connection:
        total = connection.execute("SELECT COUNT(*) FROM jobs").fetchone()[0]
        assert total == 0


def test_delete_rolls_back_when_cleanup_job_cannot_be_written(
    authenticated: tuple[TestClient, str], monkeypatch: pytest.MonkeyPatch
) -> None:
    client, csrf = authenticated
    collection_id = client.post(
        "/collections", json={"name": "Books"}, headers={"X-CSRF-Token": csrf}
    ).json()["id"]

    def fail_id(_size: int) -> str:
        raise RuntimeError("simulated job ID failure")

    monkeypatch.setattr("recoll_modern.storage.jobs.secrets.token_hex", fail_id)
    with pytest.raises(RuntimeError, match="simulated job ID failure"):
        client.delete(
            f"/collections/{collection_id}", params={"confirmation": "Books"},
            headers={"X-CSRF-Token": csrf},
        )
    assert client.get(f"/collections/{collection_id}").status_code == 200