import os
import shutil
import tempfile
import pytest
from main import app, CONFIG_PATH

def setup_module(module):
    # Сохраняем оригинальный config.yaml
    shutil.copy(CONFIG_PATH, CONFIG_PATH + '.bak')

def teardown_module(module):
    # Восстанавливаем оригинальный config.yaml
    shutil.move(CONFIG_PATH + '.bak', CONFIG_PATH)

@pytest.fixture
def client():
    app.config['TESTING'] = True
    with app.test_client() as client:
        yield client

def test_get_config(client):
    resp = client.get('/api/config')
    assert resp.status_code == 200
    data = resp.get_json()
    assert 'content' in data
    assert 'applications' in data['content']

def test_post_valid_config(client):
    resp = client.get('/api/config')
    orig = resp.get_json()['content']
    new_content = orig + '\n# test comment\n'
    resp2 = client.post('/api/config', json={'content': new_content})
    assert resp2.status_code == 200
    # Проверяем, что файл обновился
    with open(CONFIG_PATH, encoding='utf-8') as f:
        assert '# test comment' in f.read()

def test_post_invalid_config(client):
    bad_yaml = 'applications: [\n - name: test\n   url: [bad'  # некорректный yaml
    resp = client.post('/api/config', json={'content': bad_yaml})
    assert resp.status_code == 400
    data = resp.get_json()
    assert 'error' in data