"""投后报告导出测试。"""

import pytest
from fastapi.testclient import TestClient
from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_sessionmaker
from app.core.database import Base, get_db
from app.main import app

TEST_DATABASE_URL = "sqlite+aiosqlite:///file::memory:?cache=shared&uri=true"

test_engine = create_async_engine(TEST_DATABASE_URL, echo=False)
test_session_factory = async_sessionmaker(test_engine, class_=AsyncSession, expire_on_commit=False)


async def override_get_db():
    async with test_session_factory() as session:
        try:
            yield session
            await session.commit()
        except Exception:
            await session.rollback()
            raise


app.dependency_overrides[get_db] = override_get_db


@pytest.fixture(scope="module", autouse=True)
async def setup_db():
    async with test_engine.begin() as conn:
        await conn.run_sync(Base.metadata.create_all)
    yield
    async with test_engine.begin() as conn:
        await conn.run_sync(Base.metadata.drop_all)


@pytest.fixture
def client():
    return TestClient(app)


@pytest.fixture
def auth_headers(client: TestClient):
    client.post(
        "/api/v1/auth/register",
        json={
            "email": "export_test@example.com",
            "password": "password123",
            "name": "测试投资经理",
            "tenant_name": "测试机构",
            "role": "investor",
        },
    )
    resp = client.post(
        "/api/v1/auth/login",
        json={"email": "export_test@example.com", "password": "password123"},
    )
    token = resp.json()["data"]["access_token"]
    return {"Authorization": f"Bearer {token}"}


@pytest.fixture
def company_id(client: TestClient, auth_headers: dict):
    resp = client.post(
        "/api/v1/companies",
        json={"name": "导出测试公司", "industry": "AI"},
        headers=auth_headers,
    )
    return resp.json()["data"]["id"]


class TestReportExport:
    """投后报告导出。"""

    def test_summary_success(self, client: TestClient, auth_headers: dict, company_id: str):
        """获取报告汇总。"""
        response = client.get(
            f"/api/v1/reports-export/{company_id}/summary",
            headers=auth_headers,
        )
        assert response.status_code == 200
        data = response.json()
        assert data["code"] == 0
        assert data["data"]["company"]["name"] == "导出测试公司"

    def test_summary_nonexistent(self, client: TestClient, auth_headers: dict):
        """不存在的企业应返回 404。"""
        response = client.get(
            "/api/v1/reports-export/nonexistent/summary",
            headers=auth_headers,
        )
        assert response.status_code == 404

    def test_export_json(self, client: TestClient, auth_headers: dict, company_id: str):
        """导出 JSON 报告。"""
        response = client.get(
            f"/api/v1/reports-export/{company_id}/pdf",
            headers=auth_headers,
        )
        assert response.status_code == 200
        assert "attachment" in response.headers.get("content-disposition", "")