from urllib.parse import urlparse

import pytest
from rest_framework.test import APIClient

from jobs.services import create_job


@pytest.mark.django_db
def test_jobs_use_limit_offset_pagination():
    create_job(job_type="demo.success")
    create_job(job_type="demo.fail")
    create_job(job_type="demo.slow")

    response = APIClient().get("/api/jobs/?limit=2")

    assert response.status_code == 200
    body = response.json()
    assert body["count"] == 3
    assert body["next"] is not None
    assert body["previous"] is None
    assert len(body["results"]) == 2


@pytest.mark.django_db
def test_jobs_pagination_supports_status_and_type_filters():
    create_job(job_type="demo.success")
    create_job(job_type="demo.fail")
    create_job(job_type="demo.slow")

    response = APIClient().get("/api/jobs/?status=queued&type=success&limit=10")

    assert response.status_code == 200
    body = response.json()
    assert body["count"] == 1
    assert body["results"][0]["type"] == "demo.success"


@pytest.mark.django_db
def test_global_events_use_cursor_pagination():
    create_job(job_type="demo.success")
    create_job(job_type="demo.fail")
    create_job(job_type="demo.slow")

    response = APIClient().get("/api/job-events/?limit=2")

    assert response.status_code == 200
    body = response.json()
    assert body["next"] is not None
    assert body["previous"] is None
    assert len(body["results"]) == 2
    assert body["results"][0]["id"] > body["results"][1]["id"]


@pytest.mark.django_db
def test_global_events_next_cursor_returns_older_events():
    create_job(job_type="demo.success")
    create_job(job_type="demo.fail")
    create_job(job_type="demo.slow")
    client = APIClient()
    first_response = client.get("/api/job-events/?limit=2")
    first_body = first_response.json()
    parsed_next = urlparse(first_body["next"])
    next_path = f"{parsed_next.path}?{parsed_next.query}"

    next_response = client.get(next_path)

    assert next_response.status_code == 200
    body = next_response.json()
    assert body["next"] is None
    assert body["previous"] is not None
    assert len(body["results"]) == 1
    assert body["results"][0]["id"] < first_body["results"][1]["id"]