"""Test that UI displays in English."""
import re
from pathlib import Path


# Japanese character regex pattern (Hiragana, Katakana, Kanji)
JAPANESE_PATTERN = re.compile(r'[\u3040-\u309F\u30A0-\u30FF\u4E00-\u9FFF]')


class TestUILanguage:
    """Tests to verify UI is in English."""

    def test_html_lang_attribute_is_english(self):
        """HTML lang attribute should be 'en' for English."""
        html_path = Path(__file__).parent.parent / 'rock_paper_scissors' / 'static' / 'index.html'
        content = html_path.read_text(encoding='utf-8')

        assert 'lang="en"' in content, "HTML lang attribute should be 'en'"

    def test_html_has_no_japanese_text(self):
        """HTML should not contain Japanese characters."""
        html_path = Path(__file__).parent.parent / 'rock_paper_scissors' / 'static' / 'index.html'
        content = html_path.read_text(encoding='utf-8')

        japanese_chars = JAPANESE_PATTERN.findall(content)
        assert not japanese_chars, f"HTML contains Japanese characters: {''.join(japanese_chars[:20])}"

    def test_js_has_no_japanese_text(self):
        """JavaScript should not contain Japanese characters."""
        js_path = Path(__file__).parent.parent / 'rock_paper_scissors' / 'static' / 'main.js'
        content = js_path.read_text(encoding='utf-8')

        japanese_chars = JAPANESE_PATTERN.findall(content)
        assert not japanese_chars, f"JS contains Japanese characters: {''.join(japanese_chars[:20])}"

    def test_html_has_english_title(self):
        """Page title should be in English."""
        html_path = Path(__file__).parent.parent / 'rock_paper_scissors' / 'static' / 'index.html'
        content = html_path.read_text(encoding='utf-8')

        assert 'Rock Paper Scissors' in content, "Title should contain 'Rock Paper Scissors'"

    def test_html_has_english_labels(self):
        """UI labels should be in English."""
        html_path = Path(__file__).parent.parent / 'rock_paper_scissors' / 'static' / 'index.html'
        content = html_path.read_text(encoding='utf-8')

        # Check for expected English labels
        expected_labels = [
            'State:',
            'Camera',
            'You',
            'Hand Detection Status',
        ]

        for label in expected_labels:
            assert label in content, f"Expected English label '{label}' not found"

    def test_js_has_english_result_text(self):
        """Result text in JS should be in English."""
        js_path = Path(__file__).parent.parent / 'rock_paper_scissors' / 'static' / 'main.js'
        content = js_path.read_text(encoding='utf-8')

        # Check for English result messages
        assert 'Reachy wins' in content or 'Reachy Wins' in content, "Should have English win message"
        assert 'You win' in content or 'You Win' in content, "Should have English lose message"
        assert 'Draw' in content or 'draw' in content, "Should have English draw message"

    def test_js_has_english_status_text(self):
        """Status text in JS should be in English."""
        js_path = Path(__file__).parent.parent / 'rock_paper_scissors' / 'static' / 'main.js'
        content = js_path.read_text(encoding='utf-8')

        # Check status messages are in English
        expected_messages = [
            'No frame',
            'Available',
            'Unavailable',
            'Detected',
            'Not detected',
        ]

        found_count = sum(1 for msg in expected_messages if msg in content)
        assert found_count >= 3, f"Expected more English status messages, found {found_count}"