"""Integration tests for Flask web app."""

import io

import pytest
from app import app


@pytest.fixture
def client():
    app.config["TESTING"] = True
    with app.test_client() as client:
        yield client


def test_index_page(client):
    """GET / returns 200."""
    resp = client.get("/")
    assert resp.status_code == 200


def test_jobs_page(client):
    """GET /jobs returns 200."""
    resp = client.get("/jobs")
    assert resp.status_code == 200


def test_api_models(client):
    """GET /api/models returns JSON list."""
    resp = client.get("/api/models")
    assert resp.status_code == 200
    data = resp.get_json()
    assert isinstance(data, list)


def test_api_jobs(client):
    """GET /api/jobs returns JSON list."""
    resp = client.get("/api/jobs")
    assert resp.status_code == 200
    data = resp.get_json()
    assert isinstance(data, list)


def test_upload_no_video(client):
    """POST /upload without video returns 400."""
    resp = client.post("/upload")
    assert resp.status_code == 400


def test_upload_invalid_extension_rejected(client):
    """POST /upload with a non-video file returns 400."""
    resp = client.post(
        "/upload",
        data={"video": (io.BytesIO(b"not a video"), "notes.txt")},
        content_type="multipart/form-data",
    )
    assert resp.status_code == 400


def test_status_nonexistent(client):
    """GET /status/nonexistent returns 404."""
    resp = client.get("/status/nonexistent")
    assert resp.status_code == 404


def test_api_job_detail_nonexistent(client):
    """GET /api/jobs/nonexistent returns 404."""
    resp = client.get("/api/jobs/nonexistent")
    assert resp.status_code == 404


def test_cancel_nonexistent_job(client):
    """POST /api/jobs/nonexistent/cancel returns 404."""
    resp = client.post("/api/jobs/nonexistent/cancel")
    assert resp.status_code == 404
    data = resp.get_json()
    assert data["error"] == "not found"


def test_cancel_completed_job(client):
    """POST /api/jobs/<id>/cancel returns 400 for completed job."""
    from src.job import JobQueue, Job, JobStatus
    from app import job_queue
    job = job_queue.add_job(video_path="/tmp/test.mp4", model_configs=[])
    import time
    time.sleep(0.3)
    # Force status to COMPLETED
    with job_queue._lock:
        job.status = JobStatus.COMPLETED
    resp = client.post(f"/api/jobs/{job.job_id}/cancel")
    assert resp.status_code == 400
    data = resp.get_json()
    assert "cannot cancel" in data["error"]


def test_cancel_pending_or_running_job(client):
    """POST /api/jobs/<id>/cancel returns 200 for cancellable job."""
    from src.job import JobQueue, JobStatus
    from app import job_queue
    job = job_queue.add_job(video_path="/tmp/test.mp4", model_configs=[])
    import time
    time.sleep(0.1)
    resp = client.post(f"/api/jobs/{job.job_id}/cancel")
    assert resp.status_code == 200
    data = resp.get_json()
    assert data["status"] == "cancelled"
    # Verify job is now CANCELLED
    fetched = job_queue.get_job(job.job_id)
    assert fetched.status == JobStatus.CANCELLED