"""Einzelstücke: Kaufpreis und Belege (Metadaten in der Ausgabe, Dateinamen-Härtung)."""

import pytest

from app.models import Category, CategoryTracking, Item, ItemDocument, Product, Role, User
from app.routers.items import _safe_filename, create_items, get_item
from app.schemas import ItemCreate


@pytest.fixture()
def admin(db):
    person = User(username="admin", password_hash="x", role=Role.admin)
    db.add(person)
    db.commit()
    db.refresh(person)
    return person


def _product(db):
    cat = Category(name="Elektronik", tracking=CategoryTracking.object.value)
    db.add(cat)
    db.flush()
    product = Product(name="Kamera", category_id=cat.id, individual=True)
    db.add(product)
    db.commit()
    db.refresh(product)
    return product


def test_item_kaufpreis_round_trip(db, admin):
    product = _product(db)
    out = create_items(
        product.id, ItemCreate(count=1, price_cents=49900, currency="CHF"), db=db, _=admin
    )
    assert out[0].price_cents == 49900
    assert out[0].currency == "CHF"


def test_item_out_listet_belege(db, admin):
    product = _product(db)
    item_id = create_items(product.id, ItemCreate(count=1), db=db, _=admin)[0].id
    db.add(ItemDocument(item_id=item_id, filename="rechnung.pdf",
                        content_type="application/pdf", data=b"%PDF-1.4 x"))
    db.commit()

    fresh = get_item(item_id, db=db, _=admin)
    assert len(fresh.documents) == 1
    assert fresh.documents[0].filename == "rechnung.pdf"
    assert fresh.documents[0].content_type == "application/pdf"


def test_safe_filename_entfernt_header_zeichen():
    assert _safe_filename('a"b\r\nc.pdf') == "abc.pdf"
    assert _safe_filename("   ") == "beleg"
    assert _safe_filename(None) == "beleg"