# -*- coding: utf-8 -*-
import pytest
from unittest.mock import patch, MagicMock
from app.visa_free_config_fetchers.vfs_fetcher import _select_candidate_with_llm

def test_select_candidate_with_llm():
    candidates = [
        {"code": "A", "name": "Option A"},
        {"code": "B", "name": "Option B"}
    ]
    prompt_context = "选择 Option B"

    mock_resp = MagicMock()
    mock_resp.status_code = 200
    mock_resp.json.return_value = {
        "choices": [
            {"message": {"content": "1"}}
        ]
    }

    with patch("curl_cffi.requests.post", return_value=mock_resp):
        selected = _select_candidate_with_llm(candidates, prompt_context)
        assert selected == {"code": "B", "name": "Option B"}

from app.visa_free_config_fetchers.vfs_fetcher import VFSFetcher

def test_fetch_external_vac_info_success():
    fetcher = VFSFetcher()

    mock_centers = [
        {
            "isoCode": "NTDB",
            "centerName": "Netherlands Visa Application Center - Dublin",
            "address": "130 Francis Street, Dublin"
        }
    ]
    mock_cats = [
        {
            "visaCategoryCode": "TA",
            "name": "Short Stay Visa"
        }
    ]
    mock_subcats = [
        {
            "subCategoryCode": "To",
            "subCategoryName": "Tourist"
        }
    ]

    def mock_get(url, **kwargs):
        resp = MagicMock()
        resp.status_code = 200
        if "master/center" in url:
            resp.json.return_value = mock_centers
        elif "master/visacategory" in url:
            resp.json.return_value = mock_cats
        elif "master/subvisacategory" in url:
            resp.json.return_value = mock_subcats
        else:
            resp.status_code = 404
        return resp

    with patch("curl_cffi.requests.get", side_effect=mock_get):
        res = fetcher.fetch_external_vac_info("ie", "nl", "tourist", "dub")
        assert res["vac_code"] == "NTDB"
        assert res["center_name"] == "Netherlands Visa Application Center - Dublin"
        assert res["category_code"] == "TA"
        assert res["subcategory_code"] == "To"

def test_fetch_external_vac_info_hard_failure():
    fetcher = VFSFetcher()
    mock_resp = MagicMock()
    mock_resp.status_code = 500

    with patch("curl_cffi.requests.get", return_value=mock_resp):
        with pytest.raises(RuntimeError):
            fetcher.fetch_external_vac_info("ie", "nl", "tourist", "nonexistent")

def test_fetch_free_config_fallback_to_external():
    fetcher = VFSFetcher()
    mock_ext = {
        "routing_key": "slot.test.nl.tourist",
        "vac_code": "TEST",
        "center_name": "Test Center",
        "address": "Test Address",
        "category_code": "CAT",
        "category_name": "Cat Name",
        "subcategory_code": "SUB",
        "subcategory_name": "Sub Name"
    }

    with patch.object(fetcher, "fetch_external_vac_info", return_value=mock_ext):
        config = fetcher.fetch_free_config("ie", "nl", "tourist", "unknown_vac_code")
        assert "slot.test.nl.tourist" in config["apt_configs"]
        assert config["apt_configs"]["slot.test.nl.tourist"]["vac_code"] == "TEST"