from sqlalchemy.orm import Session

from app.platforms.base import PlatformAPIError
from app.schemas import CreateTaskRequest
from app.services.task_service import create_task, run_task
from tests.helpers import make_test_client


class FailingHotspotPlatform:
    def fetch_hotspots(self, *, limit):
        raise PlatformAPIError("hotspot failed", error_type="api_error", status_code=500)


def test_hotspot_failure_marks_task_failed(monkeypatch):
    with make_test_client() as (_client, engine):
        monkeypatch.setattr("app.services.task_service.build_platform", lambda _platform: FailingHotspotPlatform())
        with Session(engine) as session:
            task = create_task(
                session,
                CreateTaskRequest(platform="douyin", hotspot_limit=1, item_limit_per_hotspot=1, comment_limit_per_item=10),
                submit_background=False,
            )
            task_id = task.id
            run_task(task_id, session_factory=lambda: session)
            task = session.get(type(task), task_id)

        assert task.status == "failed"
        assert task.error_stage == "crawl_hotspots"
        assert task.error_type == "api_error"


def test_unexpected_task_exception_marks_task_failed(monkeypatch):
    def raise_unexpected_error(_platform):
        raise RuntimeError("boom")

    with make_test_client() as (_client, engine):
        monkeypatch.setattr("app.services.task_service.build_platform", raise_unexpected_error)
        with Session(engine) as session:
            task = create_task(
                session,
                CreateTaskRequest(platform="douyin", hotspot_limit=1, item_limit_per_hotspot=1, comment_limit_per_item=10),
                submit_background=False,
            )
            task_id = task.id
            run_task(task_id, session_factory=lambda: session)
            task = session.get(type(task), task_id)

        assert task.status == "failed"
        assert task.error_stage == "system"
        assert task.error_type == "unexpected_error"
        assert task.error_message == "boom"