import os
import json
import types
import pytest

import scraper


def env_setup_test(monkeypatch):
    """Set required env vars for the API client (helper used by tests)."""
    monkeypatch.setenv("GOOGLE_DEVELOPER_KEY", "test-key")
    monkeypatch.setenv("GOOGLE_CSE_ID", "test-cse")


def mock_api_response_test(monkeypatch):
    """Mock out requests.get to return a fixed API payload (helper)."""
    class FakeResp:
        status_code = 200
        def __init__(self, data):
            self._data = data
            self.text = json.dumps(data)
        def json(self):
            return self._data

    data = {
        "items": [
            {
                "title": "Example Domain",
                "link": "https://example.com/",
                "snippet": "This domain is for use in illustrative examples.",
            },
            {
                "title": "OpenAI",
                "link": "https://openai.com/research",
                "snippet": "Research from OpenAI.",
            },
        ]
    }

    def fake_get(url, params=None, timeout=15):
        return FakeResp(data)

    monkeypatch.setattr(scraper, "requests", types.SimpleNamespace(get=fake_get))


def test_get_google_first_page_maps_output(monkeypatch):
    env_setup_test(monkeypatch)
    mock_api_response_test(monkeypatch)
    # Avoid waiting for the throttle in tests
    monkeypatch.setattr(scraper, "RATE_SECONDS", 0)
    monkeypatch.setattr(scraper, "last_api_call", 0)

    results = scraper.get_google_first_page("example query")

    assert isinstance(results, list)
    assert len(results) == 2

    first = results[0]
    assert first["position"] == 1
    assert first["title"] == "Example Domain"
    assert first["link"] == "https://example.com/"
    assert first["snippet"].startswith("This domain is for use")
    assert first["icon"] == "https://example.com/favicon.ico"

    second = results[1]
    assert second["position"] == 2
    assert second["title"] == "OpenAI"
    assert second["link"] == "https://openai.com/research"
    assert second["icon"] == "https://openai.com/favicon.ico"


def test_missing_env_raises(monkeypatch):
    # Unset env to simulate missing configuration
    monkeypatch.delenv("GOOGLE_DEVELOPER_KEY", raising=False)
    monkeypatch.delenv("GOOGLE_CSE_ID", raising=False)

    with pytest.raises(RuntimeError):
        scraper.get_google_first_page("anything")