"""Unit tests for Variable class."""

import pytest

from cli.core.template.variable import Variable

# Test constants
TEST_PORT = 8080
TEST_COUNT = 42
TEST_RATE = 3.14


class TestVariableInitialization:
    """Tests for Variable initialization."""

    def test_create_simple_variable(self):
        """Test creating a simple string variable."""
        var = Variable({"name": "test_var", "type": "str"})
        assert var.name == "test_var"
        assert var.type == "str"
        assert var.value is None

    def test_create_variable_with_default(self):
        """Test creating a variable with default value."""
        var = Variable({"name": "port", "type": "int", "default": TEST_PORT})
        assert var.name == "port"
        assert var.value == TEST_PORT

    def test_create_bool_variable_without_default(self):
        """Test that bool variables default to False."""
        var = Variable({"name": "enabled", "type": "bool"})
        assert var.value is False

    def test_create_variable_with_description(self):
        """Test creating a variable with description."""
        var = Variable({"name": "test", "type": "str", "description": "Test variable"})
        assert var.description == "Test variable"

    def test_missing_name_raises_error(self):
        """Test that missing name key raises ValueError."""
        with pytest.raises(ValueError, match="must contain 'name' key"):
            Variable({"type": "str"})

    def test_invalid_data_type_raises_error(self):
        """Test that non-dict data raises ValueError."""
        with pytest.raises(ValueError, match="must be a dictionary"):
            Variable("not a dict")


class TestVariableTypes:
    """Tests for variable type handling."""

    def test_string_type(self):
        """Test string variable type."""
        var = Variable({"name": "test", "type": "str", "default": "hello"})
        assert var.value == "hello"

    def test_int_type(self):
        """Test integer variable type."""
        var = Variable({"name": "count", "type": "int", "default": TEST_COUNT})
        assert var.value == TEST_COUNT

    def test_bool_type_true(self):
        """Test boolean variable with true value."""
        var = Variable({"name": "enabled", "type": "bool", "default": True})
        assert var.value is True

    def test_bool_type_false(self):
        """Test boolean variable with false value."""
        var = Variable({"name": "disabled", "type": "bool", "default": False})
        assert var.value is False

    def test_float_type(self):
        """Test float variable type."""
        var = Variable({"name": "rate", "type": "float", "default": TEST_RATE})
        assert var.value == TEST_RATE


class TestVariableProperties:
    """Tests for variable properties."""

    def test_sensitive_flag(self):
        """Test sensitive flag for passwords."""
        var = Variable({"name": "password", "type": "str", "sensitive": True})
        assert var.sensitive is True

    def test_autogenerated_flag(self):
        """Test autogenerated flag."""
        var = Variable({"name": "secret", "type": "str", "autogenerated": True})
        assert var.autogenerated is True

    def test_required_flag(self):
        """Test required flag."""
        var = Variable({"name": "hostname", "type": "str", "required": True})
        assert var.required is True

    def test_options_list(self):
        """Test enum variable with options."""
        var = Variable({"name": "mode", "type": "enum", "options": ["dev", "prod"]})
        assert var.options == ["dev", "prod"]

    def test_extra_help_text(self):
        """Test extra help text."""
        var = Variable({"name": "test", "type": "str", "extra": "Additional info"})
        assert var.extra == "Additional info"


class TestVariableNeeds:
    """Tests for variable dependency constraints."""

    def test_needs_single_string(self):
        """Test needs constraint as single string."""
        var = Variable({"name": "test", "type": "str", "needs": "other_var=value"})
        assert var.needs == ["other_var=value"]

    def test_needs_semicolon_separated(self):
        """Test needs constraint with semicolon-separated conditions."""
        var = Variable({"name": "test", "type": "str", "needs": "var1=value1;var2=value2"})
        assert var.needs == ["var1=value1", "var2=value2"]

    def test_needs_list(self):
        """Test needs constraint as list."""
        var = Variable({"name": "test", "type": "str", "needs": ["var1=value1", "var2=value2"]})
        assert var.needs == ["var1=value1", "var2=value2"]

    def test_needs_empty(self):
        """Test variable without needs constraint."""
        var = Variable({"name": "test", "type": "str"})
        assert var.needs == []


class TestVariableConversion:
    """Tests for variable value conversion."""

    def test_convert_string_to_int(self):
        """Test converting string to integer."""
        var = Variable({"name": "count", "type": "int"})
        result = var.convert("42")
        assert result == TEST_COUNT
        assert isinstance(result, int)

    def test_convert_string_to_bool_true(self):
        """Test converting string to boolean true."""
        var = Variable({"name": "enabled", "type": "bool"})
        assert var.convert("true") is True
        assert var.convert("1") is True
        assert var.convert("yes") is True

    def test_convert_string_to_bool_false(self):
        """Test converting string to boolean false."""
        var = Variable({"name": "disabled", "type": "bool"})
        assert var.convert("false") is False
        assert var.convert("0") is False
        assert var.convert("no") is False

    def test_convert_string_to_float(self):
        """Test converting string to float."""
        var = Variable({"name": "rate", "type": "float"})
        result = var.convert("3.14")
        assert result == TEST_RATE
        assert isinstance(result, float)


@pytest.mark.parametrize(
    "var_type,default_value,expected",
    [
        ("str", "hello", "hello"),
        ("int", TEST_COUNT, TEST_COUNT),
        ("bool", True, True),
        ("float", TEST_RATE, TEST_RATE),
    ],
)
def test_variable_types_parametrized(var_type, default_value, expected):
    """Test various variable types with parametrized inputs."""
    var = Variable({"name": "test", "type": var_type, "default": default_value})
    assert var.value == expected