from datetime import timedelta

from factories import make_account, make_category, make_txn, month_back
from fintracker.analytics import today_local
from fintracker.models import AccountRole


async def test_refresh_populates_every_metric_endpoint(client, auth_headers):
    card = await make_account(name="Карта", balance="200000")
    await make_account(name="Вклад", balance="100000", role=AccountRole.savings)
    await make_account(name="Кредитка", balance="-5000", role=AccountRole.debt)
    food = await make_category("Еда")
    m = month_back(1)
    await make_txn(m + timedelta(days=1), income="150000", income_account_id=card)
    await make_txn(
        m + timedelta(days=2),
        outcome="30000",
        outcome_account_id=card,
        primary_category_id=food,
    )
    await make_txn(today_local() - timedelta(days=1), outcome="500", outcome_account_id=card)

    assert (await client.get("/api/v1/metrics/status", headers=auth_headers)).json() is None

    r = await client.post("/api/v1/metrics/refresh", headers=auth_headers)
    assert r.status_code == 202
    assert r.json()["error"] is None
    assert r.json()["finished_at"] is not None

    status = (await client.get("/api/v1/metrics/status", headers=auth_headers)).json()
    assert status["trigger"] == "manual"

    series = (await client.get("/api/v1/networth/series", headers=auth_headers)).json()
    assert series
    assert series[-1]["d"] == str(today_local())
    assert series[-1]["total_rub"].startswith("295000")
    assert isinstance(series[-1]["by_currency"]["RUB"], str)

    breakdown = (await client.get("/api/v1/networth/breakdown", headers=auth_headers)).json()
    assert breakdown["d"] == str(today_local())
    assert breakdown["debt_rub"].startswith("-5000")
    assert {a["name"] for a in breakdown["accounts"]} == {"Карта", "Вклад", "Кредитка"}
    assert all(isinstance(a["balance_rub"], str) for a in breakdown["accounts"])

    monthly = (await client.get("/api/v1/cashflow/monthly", headers=auth_headers)).json()
    last_month = next(row for row in monthly if row["month"] == str(m))
    assert last_month["income_rub"].startswith("150000")
    assert last_month["expense_rub"].startswith("30000")
    assert last_month["savings_rate"].startswith("0.8")

    spending = (
        await client.get(
            "/api/v1/spending/categories",
            headers=auth_headers,
            params={"month": m.strftime("%Y-%m")},
        )
    ).json()
    assert spending[0]["category_name"] == "Еда"
    assert spending[0]["root_category_name"] == "Еда"
    assert spending[0]["amount_rub"].startswith("30000")

    runway = (await client.get("/api/v1/runway", headers=auth_headers)).json()
    assert runway["liquid_reserve_rub"].startswith("300000")
    # 30000 baseline in the previous month, 0 in the two before it -> 10000 average
    assert runway["avg_baseline_3m_rub"].startswith("10000")
    assert runway["runway_months"].startswith("30")

    quality = (await client.get("/api/v1/data-quality", headers=auth_headers)).json()
    assert isinstance(quality, list)


async def test_spending_rejects_a_bad_month(client, auth_headers):
    r = await client.get(
        "/api/v1/spending/categories", headers=auth_headers, params={"month": "2026/01"}
    )
    assert r.status_code == 400
    r = await client.get(
        "/api/v1/spending/categories", headers=auth_headers, params={"month": "2026-13"}
    )
    assert r.status_code == 400


async def test_empty_database_reports_no_transactions(client, auth_headers):
    await client.post("/api/v1/metrics/refresh", headers=auth_headers)
    quality = (await client.get("/api/v1/data-quality", headers=auth_headers)).json()
    assert [row["check_name"] for row in quality] == ["no_transactions"]
    assert (await client.get("/api/v1/runway", headers=auth_headers)).json()[
        "runway_months"
    ] is None
    assert (await client.get("/api/v1/networth/series", headers=auth_headers)).json() == []
    assert (await client.get("/api/v1/spending/categories", headers=auth_headers)).json() == []