import pytest
from pathlib import Path

from app import app, db, Frage


@pytest.fixture
def client(tmp_path):
    # Use a temporary directory for vcards and a temporary sqlite db
    # temp DB file
    db_file = tmp_path / "test.db"

    # Configure app for testing
    app.config['TESTING'] = True
    app.config['SQLALCHEMY_DATABASE_URI'] = f'sqlite:///{db_file}'

    # Use temp vcards dir by setting app.BASE_DIR
    app.BASE_DIR = str(tmp_path)

    # ensure clean DB and create tables
    with app.app_context():
        db.drop_all()
        db.create_all()
        # create a sample question so POST processing loops over it
        q = Frage(text='Testfrage?')
        db.session.add(q)
        db.session.commit()
        # record question id for use in test POST data
        app.config['TEST_QUESTION_ID'] = q.id

    with app.test_client() as test_client:
        yield test_client


def test_vcard_created_after_submit(client):
    data = {
        'vorname': 'Max',
        'nachname': 'Mustermann',
        'strasse': 'Musterstraße',
        'hausnummer': '1',
        'plz': '12345',
        'ort': 'Musterstadt',
        'land': 'Deutschland',
        'telefon_vorwahl': '49',
        'telefon_nummer': '1234567',
        'email': 'max@example.com',
        # question id set in fixture
        f'frage_{app.config.get("TEST_QUESTION_ID")}': 'Antwort'
    }

    # Submit the form
    res = client.post('/', data=data, follow_redirects=True)
    assert res.status_code == 200

    # find vcards dir under tmp_path (app.BASE_DIR)
    vcards_dir = Path(app.BASE_DIR) / 'vcards'
    files = list(vcards_dir.glob('*.vcf'))
    assert len(files) == 1

    content = files[0].read_text(encoding='utf-8')
    assert 'BEGIN:VCARD' in content
    assert 'VERSION:4.0' in content
    assert 'FN:Max Mustermann' in content
    assert 'EMAIL;TYPE=internet:max@example.com' in content
    assert 'ADR:' in content