"""Tests for ledgerly.services.reports (R11)."""

from datetime import date

import pytest

from ledgerly.models import Month
from ledgerly.money import Money
from ledgerly.repository import SqliteRepository
from ledgerly.services import BudgetService, LedgerService, ReportingService


@pytest.fixture()
def services():
    repo = SqliteRepository(":memory:")
    yield LedgerService(repo), BudgetService(repo), ReportingService(repo)
    repo.close()


def test_monthly_summary_empty(services):
    _ledger, _budgets, reports = services
    summary = reports.monthly_summary(Month(2026, 10))
    assert summary.income == Money(0)
    assert summary.expenses == Money(0)
    assert summary.net == Money(0)


def test_monthly_summary_with_data(services):
    ledger, _budgets, reports = services
    ledger.add_transaction(Money(300000), "Salary", date(2026, 10, 1))
    ledger.add_transaction(Money(50000), "Groceries", date(2026, 10, 5))
    ledger.add_transaction(Money(1), "Rent", date(2026, 9, 5))  # out of month
    summary = reports.monthly_summary(Month(2026, 10))
    assert summary.income == Money(300000)
    assert summary.expenses == Money(50000)
    assert summary.net == Money(250000)


def test_category_totals_ordering(services):
    ledger, _budgets, reports = services
    ledger.add_transaction(Money(300000), "Salary", date(2026, 10, 1))
    ledger.add_transaction(Money(50000), "Groceries", date(2026, 10, 2))
    ledger.add_transaction(Money(90000), "Rent", date(2026, 10, 3))
    totals = reports.category_totals(Month(2026, 10))
    assert [(t.category, t.total) for t in totals] == [
        ("Salary", Money(300000)),
        ("Rent", Money(90000)),
        ("Groceries", Money(50000)),
    ]


def test_budget_status_budgeted_and_unbudgeted(services):
    ledger, budgets, reports = services
    budgets.set_budget("Rent", Money(150000))
    ledger.add_transaction(Money(160000), "Rent", date(2026, 10, 1))  # over
    ledger.add_transaction(Money(40000), "Groceries", date(2026, 10, 2))  # unbudgeted
    lines = reports.budget_status(Month(2026, 10))
    by_name = {line.category: line for line in lines}
    assert by_name["Rent"].is_over
    assert by_name["Rent"].remaining == Money(-10000)
    assert by_name["Groceries"].budget == Money(0)
    assert by_name["Groceries"].is_over


def test_budget_status_within_budget(services):
    ledger, budgets, reports = services
    budgets.set_budget("Rent", Money(150000))
    ledger.add_transaction(Money(100000), "Rent", date(2026, 10, 1))
    line = reports.budget_status(Month(2026, 10))[0]
    assert not line.is_over
    assert line.remaining == Money(50000)


def test_budget_status_empty(services):
    _ledger, _budgets, reports = services
    assert reports.budget_status(Month(2026, 10)) == []