from __future__ import annotations

from decimal import Decimal
from pathlib import Path

from observatory.economics import active_members, build_snapshot, monthly_cost_total
from observatory.load import (
    load_costs,
    load_membership,
    load_pricing_models,
    load_product,
    load_revenue,
)

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


def test_active_members_counts_only_active_status() -> None:
    members = load_membership(DATA_DIR)
    assert active_members(members) == 1


def test_build_snapshot_reflects_sole_member_and_zero_costs() -> None:
    product = load_product(DATA_DIR)
    models = load_pricing_models(DATA_DIR)
    members = load_membership(DATA_DIR)
    revenue = load_revenue(DATA_DIR)
    _, costs, fx_rates = load_costs(DATA_DIR)

    snapshot = build_snapshot("2026-06", product, models, members, revenue, costs, fx_rates)

    assert snapshot.active_members == 1
    assert snapshot.monthly_revenue == Decimal("8.99")
    assert snapshot.revenue_source == "manual"
    assert snapshot.pricing_model_count == 3
    assert snapshot.monthly_cost == Decimal("0.00")
    assert snapshot.cost_per_member == Decimal("0.00")
    assert snapshot.gross_margin == Decimal("8.99")
    assert snapshot.gross_margin_pct == Decimal("100.0")


def test_monthly_cost_is_zero_with_empty_registry() -> None:
    _, costs, fx_rates = load_costs(DATA_DIR)
    total = monthly_cost_total(costs, fx_rates, Decimal("8.99"), 1)
    assert total == Decimal("0.00")


def test_dashboard_module_renders_markdown() -> None:
    from observatory.dashboard import generate_dashboard

    report = generate_dashboard(DATA_DIR, "2026-06")
    assert "# Economics Dashboard v1" in report
    assert "Pricing Model Registry" in report
    assert "flat-899-eur-monthly" in report
    assert "Active members | 1" in report