"""Tests for detectors."""



from i18n_guardian.detectors.base import get_default_registry


class TestReactIntlDetector:
    """Tests for React Intl detector."""

    def test_detect_react_intl_in_package_json(self, temp_dir):
        """Test detection of react-intl in package.json."""
        package_json = temp_dir / "package.json"
        package_json.write_text('{"dependencies": {"react-intl": "^5.0.0"}}', encoding="utf-8")

        registry = get_default_registry()
        detector = registry.get("react-intl")
        assert detector is not None
        assert detector.detect(temp_dir) == "react-intl"

    def test_detect_react_intl_in_imports(self, temp_dir):
        """Test detection of react-intl in source imports."""
        js_file = temp_dir / "App.js"
        js_file.write_text("import { defineMessages } from 'react-intl'", encoding="utf-8")

        registry = get_default_registry()
        detector = registry.get("react-intl")
        assert detector is not None
        assert detector.detect(temp_dir) == "react-intl"

    def test_get_react_intl_functions(self, temp_dir):
        """Test getting react-intl function names."""
        registry = get_default_registry()
        detector = registry.get("react-intl")
        assert detector is not None
        functions = detector.get_i18n_functions()
        assert "formatMessage" in functions
        assert "defineMessages" in functions


class TestI18NextDetector:
    """Tests for i18next detector."""

    def test_detect_i18next_in_package_json(self, temp_dir):
        """Test detection of i18next in package.json."""
        package_json = temp_dir / "package.json"
        package_json.write_text('{"dependencies": {"i18next": "^21.0.0"}}', encoding="utf-8")

        registry = get_default_registry()
        detector = registry.get("i18next")
        assert detector is not None
        assert detector.detect(temp_dir) == "i18next"

    def test_detect_i18next_in_locales(self, temp_dir):
        """Test detection of i18next via locale files."""
        locales_dir = temp_dir / "locales"
        locales_dir.mkdir()
        en_json = locales_dir / "en.json"
        en_json.write_text('{"greeting": "Hello"}', encoding="utf-8")

        registry = get_default_registry()
        detector = registry.get("i18next")
        assert detector is not None
        result = detector.detect(temp_dir)
        assert result == "i18next"


class TestVueI18nDetector:
    """Tests for Vue I18n detector."""

    def test_detect_vue_i18n_in_package_json(self, temp_dir):
        """Test detection of vue-i18n in package.json."""
        package_json = temp_dir / "package.json"
        package_json.write_text('{"dependencies": {"vue-i18n": "^8.0.0"}}', encoding="utf-8")

        registry = get_default_registry()
        detector = registry.get("vue-i18n")
        assert detector is not None
        assert detector.detect(temp_dir) == "vue-i18n"


class TestGettextDetector:
    """Tests for Gettext detector."""

    def test_detect_gettext_po_files(self, temp_dir):
        """Test detection of gettext via .po files."""
        po_file = temp_dir / "messages.po"
        po_file.write_text('msgid "Hello"\nmsgstr "Hallo"', encoding="utf-8")

        registry = get_default_registry()
        detector = registry.get("gettext")
        assert detector is not None
        assert detector.detect(temp_dir) == "gettext"


class TestPythonGettextDetector:
    """Tests for Python gettext detector."""

    def test_detect_python_gettext_imports(self, temp_dir):
        """Test detection of Python gettext via imports."""
        py_file = temp_dir / "app.py"
        py_file.write_text("import gettext\n_ = gettext.gettext", encoding="utf-8")

        registry = get_default_registry()
        detector = registry.get("python-gettext")
        assert detector is not None
        assert detector.detect(temp_dir) == "python-gettext"


class TestDetectorRegistry:
    """Tests for detector registry."""

    def test_list_detectors(self):
        """Test listing all detectors."""
        registry = get_default_registry()
        detectors = registry.list_detectors()
        assert "react-intl" in detectors
        assert "i18next" in detectors
        assert "vue-i18n" in detectors
        assert "gettext" in detectors
        assert "python-gettext" in detectors

    def test_detect_library_auto(self, temp_dir):
        """Test auto-detection of i18n library."""
        package_json = temp_dir / "package.json"
        package_json.write_text('{"dependencies": {"i18next": "^21.0.0"}}', encoding="utf-8")

        registry = get_default_registry()
        detected = registry.detect_library(temp_dir)
        assert detected == "i18next"

    def test_detect_no_library(self, temp_dir):
        """Test when no i18n library is found."""
        py_file = temp_dir / "app.py"
        py_file.write_text("print('Hello')", encoding="utf-8")

        registry = get_default_registry()
        detected = registry.detect_library(temp_dir)
        assert detected is None