"""Tests for code scanner."""

import pytest
from pathlib import Path

from src.core.scanner import CodeScanner
from src.core.models import IssueCategory, SeverityLevel


class TestCodeScanner:
    """Tests for CodeScanner class."""

    def test_scanner_initialization(self):
        """Test scanner creates empty issue list."""
        scanner = CodeScanner()
        assert scanner.issues == []

    def test_supported_extensions(self):
        """Test supported file extensions."""
        scanner = CodeScanner()
        assert ".py" in scanner.SUPPORTED_EXTENSIONS
        assert ".js" in scanner.SUPPORTED_EXTENSIONS
        assert ".ts" in scanner.SUPPORTED_EXTENSIONS

    def test_scan_single_file(self, tmp_path):
        """Test scanning a single file."""
        test_file = tmp_path / "test.py"
        test_file.write_text("""
def hello():
    # TODO: implement
    print("Hello")
""")

        scanner = CodeScanner()
        result = scanner.scan(test_file)

        assert result.files_scanned == 1
        assert len(result.issues) == 1
        assert result.issues[0].category == IssueCategory.MAINTAINABILITY
        assert result.issues[0].severity == SeverityLevel.LOW

    def test_scan_directory(self, tmp_path):
        """Test scanning a directory."""
        test_dir = tmp_path / "project"
        test_dir.mkdir()

        (test_dir / "test.py").write_text("# TODO: test")
        (test_dir / "test.js").write_text("// FIXME: fix")

        scanner = CodeScanner()
        result = scanner.scan(test_dir)

        assert result.files_scanned == 2
        assert len(result.issues) == 2

    def test_unsupported_file(self, tmp_path):
        """Test skipping unsupported files."""
        test_file = tmp_path / "test.txt"
        test_file.write_text("TODO: something")

        scanner = CodeScanner()
        result = scanner.scan(test_file)

        assert result.files_scanned == 0
        assert len(result.issues) == 0