from __future__ import annotations

import json
from decimal import Decimal
from pathlib import Path

from observatory.api import build_dashboard_payload, payload_json

DATA_DIR = Path(__file__).resolve().parent.parent / "data"


def test_dashboard_payload_contains_live_ledger_totals() -> None:
    payload = build_dashboard_payload(DATA_DIR, "2026-06")

    assert payload["period"] == "2026-06"
    assert payload["liquidity"]["remaining_budget"] == "659.12"
    assert payload["liquidity"]["cumulative_infrastructure_cost"] == "409.28"
    assert payload["snapshot"]["monthly_infrastructure_cost"] == "29.73"
    assert len(payload["history"]) == 18
    assert payload["expense_record_count"] == 58


def test_payload_json_is_valid() -> None:
    parsed = json.loads(payload_json(DATA_DIR, "2026-06"))
    assert Decimal(parsed["payments"][0]["fees_amount"]) == Decimal("0.44")