"""Smoke-Tests fuer Rechnungs-CRUD (Admin)."""

import os
import secrets


def test_admin_create_invoice(client, admin):
    """POST /api/admin/invoices als Admin -> 201 mit Rechnungsnummer."""
    r = client.post(
        "/api/admin/invoices",
        headers=admin["headers"],
        json={
            "recipient_name":  "Max Mustermann",
            "recipient_email": "max@example.com",
            "items": [{"description": "Pro-Jahresabo", "quantity": 1, "unit_price": 29.0}],
            "service_period":  "2026-01-01 - 2026-12-31",
            "notes":           "Test-Rechnung",
        },
    )
    assert r.status_code == 201, r.text
    data = r.json()
    assert data["invoice_number"].startswith("RG-")
    assert data["amount_gross"] == 29.0
    assert data["status"] == "draft"
    assert len(data["items"]) == 1


def test_admin_list_invoices(client, admin):
    """GET /api/admin/invoices listet vorhandene Rechnungen."""
    # Eine erstellen
    client.post(
        "/api/admin/invoices",
        headers=admin["headers"],
        json={
            "recipient_name":  "Tester Listing",
            "recipient_email": f"list-{secrets.token_hex(3)}@example.com",
            "items": [{"description": "Sub", "quantity": 1, "unit_price": 49.0}],
        },
    )
    r = client.get("/api/admin/invoices", headers=admin["headers"])
    assert r.status_code == 200
    data = r.json()
    assert isinstance(data, list)
    assert len(data) >= 1


def test_non_admin_cannot_create_invoice(client, user):
    """Normaler User -> 403."""
    r = client.post(
        "/api/admin/invoices",
        headers=user["headers"],
        json={
            "recipient_name":  "x",
            "recipient_email": "x@example.com",
            "items": [{"description": "x", "quantity": 1, "unit_price": 1.0}],
        },
    )
    assert r.status_code == 403


def test_admin_send_invoice(client, admin, tmp_path, monkeypatch):
    """Send-Endpoint generiert PDF, ruft (gemockten) Mailer auf, setzt Status auf 'sent'."""
    # Paperless-Verzeichnis auf tmp_path setzen
    scaninput = tmp_path / "scaninput"
    scaninput.mkdir()
    monkeypatch.setenv("SCANINPUT_DIR", str(scaninput))
    monkeypatch.setenv("PAPERLESS_URL", "")  # kein HTTP-Call
    monkeypatch.setenv("KLEINUNTERNEHMER", "true")

    # Rechnung anlegen
    r = client.post(
        "/api/admin/invoices",
        headers=admin["headers"],
        json={
            "recipient_name":  "Send-Test",
            "recipient_email": f"send-{secrets.token_hex(3)}@example.com",
            "items": [{"description": "Sub", "quantity": 1, "unit_price": 29.0}],
            "service_period":  "2026-01-01 - 2026-12-31",
        },
    )
    assert r.status_code == 201, r.text
    inv = r.json()

    # Senden
    r2 = client.post(f"/api/admin/invoices/{inv['id']}/send", headers=admin["headers"])
    assert r2.status_code == 200, r2.text

    # Status auf 'sent'?
    r3 = client.get(f"/api/admin/invoices/{inv['id']}", headers=admin["headers"])
    assert r3.status_code == 200
    assert r3.json()["status"] == "sent"