import os
import pytest
from unittest.mock import patch, AsyncMock

os.environ["API_SECRET"] = "test-secret"
os.environ["OPENROUTER_API_KEY"] = "test-key"
os.environ["KENSHI_CALLBACK_URL"] = "http://kenshi-test/api/agent-report"
os.environ["KENSHI_CALLBACK_SECRET"] = "callback-secret"

import sys
from unittest.mock import MagicMock
sys.modules.setdefault('browser_use', MagicMock())

import jobs
from fastapi.testclient import TestClient


@pytest.fixture(autouse=True)
def isolated_db(tmp_path, monkeypatch):
    monkeypatch.setattr(jobs, "DB_PATH", str(tmp_path / "test.db"))
    jobs.init_db()


@pytest.fixture
def client():
    from app import app
    with TestClient(app) as c:
        yield c


def test_health_returns_ok(client):
    r = client.get("/health")
    assert r.status_code == 200
    assert r.json()["status"] == "ok"
    assert "jobs_running" in r.json()


def test_run_async_returns_401_on_wrong_secret(client):
    r = client.post("/run/async", json={
        "task": "browse google.com", "chat_id": "123", "secret": "wrong"
    })
    assert r.status_code == 401


def test_run_async_queues_job_and_returns_job_id(client):
    with patch("app._run_async_job", new_callable=AsyncMock):
        r = client.post("/run/async", json={
            "task": "browse google.com", "chat_id": "123", "secret": "test-secret"
        })
    assert r.status_code == 200
    data = r.json()
    assert data["status"] == "queued"
    assert data["job_id"].startswith("kaze_")


def test_get_job_returns_404_for_missing_id(client):
    r = client.get("/job/kaze_nonexistent")
    assert r.status_code == 404


def test_get_job_returns_job_after_async_dispatch(client):
    with patch("app._run_async_job", new_callable=AsyncMock):
        create = client.post("/run/async", json={
            "task": "find prices on example.com",
            "chat_id": "456",
            "secret": "test-secret",
        })
    job_id = create.json()["job_id"]
    r = client.get(f"/job/{job_id}")
    assert r.status_code == 200
    assert r.json()["task"] == "find prices on example.com"
    assert r.json()["status"] in ("queued", "running")


def test_run_async_returns_503_when_at_capacity(client):
    j1 = jobs.create_job("task 1", "c1")
    j2 = jobs.create_job("task 2", "c2")
    jobs.update_job(j1, "running")
    jobs.update_job(j2, "running")

    r = client.post("/run/async", json={
        "task": "overflow task", "chat_id": "789", "secret": "test-secret"
    })
    assert r.status_code == 503


def test_run_sync_returns_401_on_wrong_secret(client):
    with patch("app.run_task", new_callable=AsyncMock, return_value={"result": "ok", "screenshots": []}):
        r = client.post("/run", json={
            "task": "browse google.com", "chat_id": "123", "secret": "wrong"
        })
    assert r.status_code == 401


def test_run_sync_returns_503_when_at_capacity(client):
    j1 = jobs.create_job("task 1", "c1")
    j2 = jobs.create_job("task 2", "c2")
    jobs.update_job(j1, "running")
    jobs.update_job(j2, "running")

    with patch("app.run_task", new_callable=AsyncMock, return_value={"result": "ok", "screenshots": []}):
        r = client.post("/run", json={
            "task": "overflow task", "chat_id": "789", "secret": "test-secret"
        })
    assert r.status_code == 503