"""Tests for the formatter module."""

import json
import pytest

from configconverter.formatters import Formatter
from configconverter.exceptions import IndentationError


class TestFormatter:
    """Tests for the Formatter class."""

    @pytest.fixture
    def formatter(self):
        return Formatter()

    def test_format_json_with_indent_2(self, formatter):
        content = '{"name":"test","value":123}'
        result = formatter.format(content, indent=2, format="json")
        assert "\n  " in result

    def test_format_json_with_indent_4(self, formatter):
        content = '{"name":"test","value":123}'
        result = formatter.format(content, indent=4, format="json")
        assert "\n    " in result

    def test_format_json_compact(self, formatter):
        content = '{"name":"test","value":123}'
        result = formatter.format(content, indent=2, compact=True, format="json")
        assert result.strip() == '{"name":"test","value":123}'

    def test_format_invalid_indent(self, formatter):
        content = '{"name":"test"}'
        with pytest.raises(IndentationError):
            formatter.format(content, indent=3, format="json")

    def test_format_json_to_yaml(self, formatter):
        content = '{"name": "test", "value": 123}'
        result = formatter.format(content, format="yaml")
        assert "name: test" in result

    def test_format_yaml_to_json(self, formatter):
        content = 'name: test\nvalue: 123\n'
        result = formatter.format(content, format="json")
        data = json.loads(result)
        assert data["name"] == "test"
        assert data["value"] == 123

    def test_format_toml_to_json(self, formatter):
        content = 'name = "test"\nvalue = 123\n'
        result = formatter.format(content, format="json")
        data = json.loads(result)
        assert data["name"] == "test"
        assert data["value"] == 123

    def test_to_json_method(self, formatter):
        content = 'name: test\n'
        result = formatter.to_json(content, indent=4)
        data = json.loads(result)
        assert data["name"] == "test"

    def test_to_yaml_method(self, formatter):
        content = '{"name": "test"}'
        result = formatter.to_yaml(content)
        assert "name: test" in result

    def test_to_toml_method(self, formatter):
        content = '{"name": "test"}'
        result = formatter.to_toml(content)
        assert 'name = "test"' in result

    def test_nested_structure_formatting(self, formatter):
        content = '{"a":{"b":{"c":"d"}}}'
        result = formatter.format(content, indent=2, format="json")
        assert '"c": "d"' in result

    def test_array_formatting(self, formatter):
        content = '[1,2,3,4,5]'
        result = formatter.format(content, indent=2, format="json")
        assert "[\n  1," in result