import json
from datetime import date

from conftest import login_ready, new_user


def _setup(admin):
    acc = admin.post("/api/accounts", json={"name": "Exp", "currency": "EUR"}).json()
    admin.post("/api/transactions", json={
        "type": "expense", "date": str(date.today()), "account_id": acc["id"],
        "amount_cents": 4200, "payee": "Testladen", "description": "Etwas",
    })
    return acc


def test_export_transactions_csv(admin):
    _setup(admin)
    r = admin.get("/api/export/transactions.csv")
    assert r.status_code == 200
    assert "text/csv" in r.headers["content-type"]
    body = r.content.decode("utf-8-sig")
    assert "Datum;Typ;Konto" in body.splitlines()[0]
    assert "Testladen" in body


def test_export_transactions_json(admin):
    _setup(admin)
    r = admin.get("/api/export/transactions.json")
    assert r.status_code == 200
    data = json.loads(r.content)
    assert any(t["payee"] == "Testladen" for t in data)


def test_export_all_json(admin):
    _setup(admin)
    r = admin.get("/api/export/all.json")
    assert r.status_code == 200
    data = json.loads(r.content)
    assert data["app"] == "Certain Finance"
    assert len(data["accounts"]) >= 1
    assert len(data["transactions"]) >= 1


def test_db_backup_admin_only(admin):
    # Admin darf.
    r = admin.get("/api/backup/db")
    assert r.status_code == 200
    assert r.content[:16].startswith(b"SQLite format 3")

    # Normaler Nutzer darf nicht.
    other, _ = login_ready(*new_user(admin))
    assert other.get("/api/backup/db").status_code == 403
    # ...aber seinen eigenen Export schon (leer).
    assert other.get("/api/export/all.json").status_code == 200