"""Tests for value normalization (Informix t/f → bool, etc.)."""

import pytest

from mcp_cucm_axl.normalize import (
    BOOLEAN_COLUMNS,
    normalize_bool,
    normalize_row,
    normalize_rows,
)


class TestNormalizeBool:
    def test_t_becomes_true(self):
        assert normalize_bool("t") is True

    def test_f_becomes_false(self):
        assert normalize_bool("f") is False

    def test_passthrough_other_strings(self):
        assert normalize_bool("True") == "True"
        assert normalize_bool("yes") == "yes"

    def test_passthrough_native_types(self):
        assert normalize_bool(None) is None
        assert normalize_bool(0) == 0
        assert normalize_bool(True) is True
        assert normalize_bool([]) == []


class TestNormalizeRow:
    def test_normalizes_known_boolean_columns(self):
        row = {"block_enabled": "t", "name": "RP-1", "ismessagewaitingon": "f"}
        result = normalize_row(row)
        assert result["block_enabled"] is True
        assert result["ismessagewaitingon"] is False
        assert result["name"] == "RP-1"  # not a boolean column, untouched

    def test_unknown_column_with_t_value_unchanged(self):
        # Conservative: only normalize columns we know are boolean.
        # Avoids false positives on columns where 't' is meaningful (e.g.
        # a single-character device class code).
        row = {"unknown_field": "t"}
        result = normalize_row(row)
        assert result["unknown_field"] == "t"

    def test_empty_row(self):
        assert normalize_row({}) == {}


class TestNormalizeRows:
    def test_processes_each_row(self):
        rows = [
            {"block_enabled": "t", "name": "RP-1"},
            {"block_enabled": "f", "name": "RP-2"},
        ]
        result = normalize_rows(rows)
        assert result[0]["block_enabled"] is True
        assert result[1]["block_enabled"] is False

    def test_empty_list(self):
        assert normalize_rows([]) == []


class TestBooleanColumnsSet:
    def test_known_columns_present(self):
        # Smoke test that the canonical columns are in the set
        assert "block_enabled" in BOOLEAN_COLUMNS
        assert "blockenable" in BOOLEAN_COLUMNS
        assert "isemergencyservicenumber" in BOOLEAN_COLUMNS