"""
E2E tests for snapshot and returns flow.
"""
import pytest
from fastapi.testclient import TestClient


def test_snapshot_requires_holdings(client: TestClient, auth_headers):
    """Test that snapshot creation requires holdings."""
    # Create portfolio without holdings
    response = client.post(
        "/api/portfolios",
        json={"name": "Empty Portfolio", "portfolio_type": "general"},
        headers=auth_headers,
    )
    portfolio_id = response.json()["id"]

    # Try to create snapshot
    response = client.post(
        f"/api/portfolios/{portfolio_id}/snapshots",
        headers=auth_headers,
    )
    assert response.status_code == 400
    assert "empty" in response.json()["detail"].lower()


def test_snapshot_list_empty(client: TestClient, auth_headers):
    """Test listing snapshots for portfolio with no snapshots."""
    # Create portfolio
    response = client.post(
        "/api/portfolios",
        json={"name": "Snapshot Test Portfolio", "portfolio_type": "general"},
        headers=auth_headers,
    )
    portfolio_id = response.json()["id"]

    # List snapshots
    response = client.get(
        f"/api/portfolios/{portfolio_id}/snapshots",
        headers=auth_headers,
    )
    assert response.status_code == 200
    assert response.json() == []


def test_returns_empty(client: TestClient, auth_headers):
    """Test returns for portfolio with no snapshots."""
    # Create portfolio
    response = client.post(
        "/api/portfolios",
        json={"name": "Returns Test Portfolio", "portfolio_type": "general"},
        headers=auth_headers,
    )
    portfolio_id = response.json()["id"]

    # Get returns
    response = client.get(
        f"/api/portfolios/{portfolio_id}/returns",
        headers=auth_headers,
    )
    assert response.status_code == 200
    data = response.json()
    assert data["portfolio_id"] == portfolio_id
    assert data["total_return"] is None
    assert data["data"] == []


def test_snapshot_not_found(client: TestClient, auth_headers):
    """Test getting non-existent snapshot."""
    # Create portfolio
    response = client.post(
        "/api/portfolios",
        json={"name": "Not Found Test Portfolio", "portfolio_type": "general"},
        headers=auth_headers,
    )
    portfolio_id = response.json()["id"]

    # Get non-existent snapshot
    response = client.get(
        f"/api/portfolios/{portfolio_id}/snapshots/99999",
        headers=auth_headers,
    )
    assert response.status_code == 404


def test_snapshot_delete_not_found(client: TestClient, auth_headers):
    """Test deleting non-existent snapshot."""
    # Create portfolio
    response = client.post(
        "/api/portfolios",
        json={"name": "Delete Test Portfolio", "portfolio_type": "general"},
        headers=auth_headers,
    )
    portfolio_id = response.json()["id"]

    # Delete non-existent snapshot
    response = client.delete(
        f"/api/portfolios/{portfolio_id}/snapshots/99999",
        headers=auth_headers,
    )
    assert response.status_code == 404


def test_snapshot_requires_auth(client: TestClient, auth_headers):
    """Test that snapshot endpoints require authentication."""
    # Create portfolio
    response = client.post(
        "/api/portfolios",
        json={"name": "Auth Test Portfolio", "portfolio_type": "general"},
        headers=auth_headers,
    )
    portfolio_id = response.json()["id"]

    # Try without auth
    response = client.get(f"/api/portfolios/{portfolio_id}/snapshots")
    assert response.status_code == 401

    response = client.post(f"/api/portfolios/{portfolio_id}/snapshots")
    assert response.status_code == 401

    response = client.get(f"/api/portfolios/{portfolio_id}/returns")
    assert response.status_code == 401