import pytest
from pathlib import Path
import tempfile
import json

from config_auditor.generate import ConfigGenerator


class TestConfigGenerator:
    def test_detect_node_project(self):
        with tempfile.TemporaryDirectory() as tmpdir:
            (Path(tmpdir) / "package.json").write_text('{"name": "test"}')

            generator = ConfigGenerator()
            result = generator.detect_project_type(Path(tmpdir))

            assert result == "node"

    def test_detect_python_project(self):
        with tempfile.TemporaryDirectory() as tmpdir:
            (Path(tmpdir) / "pyproject.toml").write_text('[tool.poetry]\nname = "test"')

            generator = ConfigGenerator()
            result = generator.detect_project_type(Path(tmpdir))

            assert result == "python"

    def test_detect_typescript_project(self):
        with tempfile.TemporaryDirectory() as tmpdir:
            (Path(tmpdir) / "tsconfig.json").write_text('{"compilerOptions": {}}')

            generator = ConfigGenerator()
            result = generator.detect_project_type(Path(tmpdir))

            assert result == "typescript"

    def test_detect_from_source_files(self):
        with tempfile.TemporaryDirectory() as tmpdir:
            src = Path(tmpdir) / "src"
            src.mkdir()
            (src / "main.ts").write_text("const x = 1;")

            generator = ConfigGenerator()
            result = generator.detect_project_type(Path(tmpdir))

            assert result == "typescript"

    def test_generate_from_node_template(self):
        generator = ConfigGenerator()
        config = generator.generate_from_template("node", Path("/tmp"))

        assert "name" in config
        assert "version" in config
        assert "scripts" in config
        assert "test" in config["scripts"]

    def test_generate_from_python_template(self):
        generator = ConfigGenerator()
        config = generator.generate_from_template("python", Path("/tmp"))

        assert "tool" in config
        assert "poetry" in config["tool"]

    def test_generate_from_typescript_template(self):
        generator = ConfigGenerator()
        config = generator.generate_from_template("typescript", Path("/tmp"))

        assert "compilerOptions" in config
        assert config["compilerOptions"]["strict"] is True

    def test_analyze_project(self):
        with tempfile.TemporaryDirectory() as tmpdir:
            (Path(tmpdir) / "package.json").write_text('{"name": "test"}')
            (Path(tmpdir) / "index.js").write_text("console.log('test');")

            generator = ConfigGenerator()
            result = generator.analyze_project(Path(tmpdir))

            assert result["type"] == "node"
            assert "package.json" in result["files"]
            assert "index.js" in result["files"]

    def test_unknown_template_raises_error(self):
        generator = ConfigGenerator()

        with pytest.raises(ValueError):
            generator.generate_from_template("unknown", Path("/tmp"))