"""Соотношения §7 как данные (design D-7; spec «Соотношения §7 — данные, проверка по колонкам»)."""

from decimal import Decimal

import pytest

from src.contract.result import StatementLine, StatementValue
from src.parser.rules import Rules, load_rules
from src.parser.statements.checks import run_statement_checks


@pytest.fixture(scope="module")
def rules() -> Rules:
    return load_rules()


def line(code: str, *amounts: str | None) -> StatementLine:
    values = [
        StatementValue(
            column_index=index,
            amount=None if amount is None else Decimal(amount),
            confidence=100,
            is_recognized=True,
        )
        for index, amount in enumerate(amounts)
    ]
    return StatementLine(
        line_code=code,
        line_code_confidence=100,
        line_name=code,
        line_name_confidence=100,
        values=values,
    )


def test_balance_relations_hold_with_missing_codes_as_zero(rules: Rules) -> None:
    lines = [
        line("1150", "100", "90"),
        line("1100", "100", "90"),
        line("1210", "50", "40"),
        line("1200", "50", "40"),
        line("1600", "150", "130"),
        line("1310", "150", "130"),
        line("1300", "150", "130"),
        line("1700", "150", "130"),
    ]

    checks, warnings = run_statement_checks(lines, 2, "BALANCE", rules)

    assert checks.relations_failed == []
    assert checks.soft_relations_failed == []
    assert warnings == []


def test_broken_total_reported_per_column(rules: Rules) -> None:
    lines = [
        line("1100", "100", "100"),
        line("1200", "50", "50"),
        line("1600", "155", "150"),
    ]

    checks, warnings = run_statement_checks(lines, 2, "BALANCE", rules)

    failed = [(item.column_index, item.relation, item.expected, item.actual) for item in checks.relations_failed]
    assert (0, "1600 = 1100 + 1200", Decimal("155"), Decimal("150")) in failed
    assert not any(item.column_index == 1 and item.relation == "1600 = 1100 + 1200" for item in checks.relations_failed)
    assert any("1600 = 1100 + 1200" in warning and "колонка 0" in warning for warning in warnings)


def test_tolerance_one_unit(rules: Rules) -> None:
    lines = [
        line("1100", "100"),
        line("1200", "50"),
        line("1600", "151"),
        line("1700", "151"),
        line("1300", "151"),
    ]

    checks, _ = run_statement_checks(lines, 1, "BALANCE", rules)

    assert checks.relations_failed == []


def test_relation_holds_with_abs_terms(rules: Rules) -> None:
    """Review Focus 3: 1С пишет расходы со знаком минус, 66н — в скобках; оба варианта сходятся."""
    one_c = [line("2110", "1000"), line("2120", "-600"), line("2100", "400")]
    brackets = [
        line("2110", "1000"),
        line("2120", "600"),
        line("2100", "400"),
    ]

    assert run_statement_checks(one_c, 1, "INCOME", rules)[0].relations_failed == []
    assert run_statement_checks(brackets, 1, "INCOME", rules)[0].relations_failed == []


def test_soft_relation_and_sublines(rules: Rules) -> None:
    lines = [
        line("2400", "-100"),
        line("2410", "-100"),
        line("2411", "-80"),
        line("2412", "-30"),
        line("1110", "10"),
        line("11101", "6"),
        line("11102", "3"),
    ]

    checks, warnings = run_statement_checks(lines, 1, "INCOME", rules)
    balance, _ = run_statement_checks(lines, 1, "BALANCE", rules)

    assert [item.relation for item in checks.soft_relations_failed] == ["2410 = 2411 + 2412"]
    assert checks.relations_failed == []
    assert [item.relation for item in balance.soft_relations_failed] == ["1110 = 11101 + 11102"]
    assert any("мягкое" in warning for warning in warnings)


def test_null_values_count_as_zero_and_empty_form_passes(rules: Rules) -> None:
    lines = [line("1100", None), line("1200", None), line("1600", None)]

    checks, _ = run_statement_checks(lines, 1, "BALANCE", rules)

    assert checks.relations_failed == []