import time
from pathlib import Path
from typing import cast

from fastapi import FastAPI
from fastapi.testclient import TestClient


def test_job_reindex_enqueues_versioned_request(authenticated: tuple[TestClient, str]) -> None:
    client, csrf = authenticated
    response = client.post("/jobs/reindex", json={}, headers={"X-CSRF-Token": csrf})
    assert response.status_code == 202
    job = response.json()["job"]
    assert job["request"]["version"] == 1
    assert job["fail_on_file_error"] is False
    listed = client.get("/jobs").json()
    assert listed["total"] == 1


def test_retry_refuses_completed_job(authenticated: tuple[TestClient, str]) -> None:
    client, csrf = authenticated
    response = client.post("/jobs/reindex", json={}, headers={"X-CSRF-Token": csrf})
    job_id = response.json()["job"]["id"]
    for _ in range(100):
        if client.get(f"/jobs/{job_id}").json()["job"]["state"] == "completed":
            break
        time.sleep(0.01)
        time.sleep(0.01)
    response = client.post(f"/jobs/{job_id}/retry", headers={"X-CSRF-Token": csrf})
    assert response.status_code == 409
    assert response.json()["error"]["code"] == "job_not_retryable"


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


def test_collection_reindex_includes_departed_rule_path(
    authenticated: tuple[TestClient, str], tmp_path: Path
) -> None:
    client, csrf = authenticated
    books = tmp_path / "docs" / "books"
    books.mkdir()
    file = books / "gone.txt"
    file.write_text("gone")
    headers = {"X-CSRF-Token": csrf}
    collection_id = client.post(
        "/collections", headers=headers, json={"name": "Books"}
    ).json()["id"]
    created = client.post(
        f"/collections/{collection_id}/memberships", headers=headers,
        json={"sources": [{"type": "directory", "path": "books", "mode": "persistent"}]},
    )
    job_id = created.json()["job"]["id"]
    for _ in range(100):
        if client.get(f"/jobs/{job_id}").json()["job"]["state"] == "completed":
            break
    engine = cast(FastAPI, client.app).state.engine
    engine.forced_paths.clear()
    file.unlink()
    refreshed = client.post(
        "/jobs/reindex", headers=headers, json={"collections": [collection_id]}
    )
    refresh_id = refreshed.json()["job"]["id"]
    for _ in range(100):
        if client.get(f"/jobs/{refresh_id}").json()["job"]["state"] == "completed":
            break
        time.sleep(0.01)
    assert any(str(file) in batch for batch in engine.forced_paths)


def test_unfiltered_reindex_includes_document_root_after_rule_change(
    authenticated: tuple[TestClient, str], tmp_path: Path
) -> None:
    client, csrf = authenticated
    root = tmp_path / "docs"
    books = root / "books"
    books.mkdir()
    (books / "a.txt").write_text("a")
    headers = {"X-CSRF-Token": csrf}
    collection_id = client.post(
        "/collections", headers=headers, json={"name": "Books"}
    ).json()["id"]
    created = client.post(
        f"/collections/{collection_id}/memberships", headers=headers,
        json={"sources": [{"type": "directory", "path": "books", "mode": "persistent"}]},
    )
    job_id = created.json()["job"]["id"]
    for _ in range(100):
        if client.get(f"/jobs/{job_id}").json()["job"]["state"] == "completed":
            break
        time.sleep(0.01)
    engine = cast(FastAPI, client.app).state.engine
    engine.forced_paths.clear()
    (books / "b.txt").write_text("b")
    refreshed = client.post("/jobs/reindex", headers=headers, json={})
    refresh_id = refreshed.json()["job"]["id"]
    for _ in range(100):
        if client.get(f"/jobs/{refresh_id}").json()["job"]["state"] == "completed":
            break
        time.sleep(0.01)
    assert any(str(root) in batch for batch in engine.forced_paths)