from datetime import date, timedelta
from decimal import Decimal


def test_pages_require_login(client):
    for path in ("/", "/buchungen", "/import", "/planung", "/hilfe"):
        r = client.get(path, follow_redirects=False)
        assert r.status_code in (302, 303), path
        assert r.headers["location"] == "/login"


def test_pages_render_after_login(client):
    client.post("/login", data={"username": "admin", "password": "geheim"})
    for path in ("/", "/buchungen", "/import", "/planung", "/hilfe"):
        r = client.get(path)
        assert r.status_code == 200
        assert "Finanzberatung" in r.text
    assert "Gebrauchsanleitung" in client.get("/hilfe").text


def test_import_page_has_dropzone_and_list(client):
    client.post("/login", data={"username": "admin", "password": "geheim"})
    r = client.get("/import")
    assert r.status_code == 200
    assert 'id="dropzone"' in r.text
    assert 'id="imports"' in r.text


def test_import_list_fragment_requires_login(client):
    r = client.get("/import/list", follow_redirects=False)
    assert r.status_code in (302, 303)


def test_import_list_fragment_renders_after_login(client):
    client.post("/login", data={"username": "admin", "password": "geheim"})
    r = client.get("/import/list")
    assert r.status_code == 200
    assert "Noch keine Imports" in r.text


def test_version_visible(client):
    r = client.get("/api/version", headers={"Authorization": "Bearer test-key"})
    assert r.status_code == 200 and r.json()["version"] == "0.2.0"
    client.post("/login", data={"username": "admin", "password": "geheim"})
    assert "v0.2.0" in client.get("/").text


def test_buchungen_pagination(client, db):
    from app.models.tables import Account, Transaction

    acc = Account(bank="dkb", iban="DE01", name="G", type="giro")
    db.add(acc)
    db.flush()
    base = date(2026, 1, 1)
    for i in range(1, 61):
        purpose = "MARKER51" if i == 51 else f"TX{i}"
        db.add(Transaction(
            account_id=acc.id, booking_date=base + timedelta(days=i),
            amount=Decimal("10.00"), purpose=purpose, counterparty="X",
            status="confirmed", dedup_hash=f"hash-{i}",
        ))
    db.commit()

    client.post("/login", data={"username": "admin", "password": "geheim"})

    r1 = client.get("/buchungen")
    assert r1.status_code == 200
    assert "Seite 1 von 2" in r1.text
    assert "Weiter" in r1.text
    assert "MARKER51" not in r1.text

    r2 = client.get("/buchungen?page=2")
    assert r2.status_code == 200
    assert "Seite 2 von 2" in r2.text
    assert "Zurück" in r2.text
    assert "MARKER51" in r2.text


def test_planning_page_has_all_sections(client):
    client.post("/login", data={"username": "admin", "password": "geheim"})
    r = client.get("/planung")
    assert r.status_code == 200
    for heading in ("Wiederkehrende Posten", "Einmalposten", "Kredite", "Szenarien"):
        assert heading in r.text