"""Tests for CLI argument parsing."""

import pytest
import sys


class TestCLIParsing:
    def test_default_args(self):
        """Default arguments are set correctly."""
        from lidar_pipeline.cli import main
        # We can't easily call main() without files, so test argparse directly
        import argparse
        parser = argparse.ArgumentParser()
        parser.add_argument("input", help="Input directory")
        parser.add_argument("-o", "--output", default="/data/output")
        parser.add_argument("-r", "--resolution", type=float, default=0.5)
        parser.add_argument("-w", "--workers", type=int, default=1)
        parser.add_argument("-f", "--force", action="store_true")
        parser.add_argument("--file", nargs="+", type=str, default=None)

        args = parser.parse_args(["./input"])
        assert args.input == "./input"
        assert args.output == "/data/output"
        assert args.resolution == 0.5
        assert args.workers == 1
        assert args.force is False
        assert args.file is None

    def test_file_flag_single(self):
        import argparse
        parser = argparse.ArgumentParser()
        parser.add_argument("--file", nargs="+", type=str, default=None)
        args = parser.parse_args(["--file", "test_file"])
        assert args.file == ["test_file"]

    def test_file_flag_multiple(self):
        import argparse
        parser = argparse.ArgumentParser()
        parser.add_argument("--file", nargs="+", type=str, default=None)
        args = parser.parse_args(["--file", "file1", "file2", "file3"])
        assert args.file == ["file1", "file2", "file3"]

    def test_force_flag(self):
        import argparse
        parser = argparse.ArgumentParser()
        parser.add_argument("-f", "--force", action="store_true")
        args = parser.parse_args(["-f"])
        assert args.force is True

    def test_resolution_custom(self):
        import argparse
        parser = argparse.ArgumentParser()
        parser.add_argument("-r", "--resolution", type=float, default=0.5)
        args = parser.parse_args(["-r", "0.2"])
        assert args.resolution == 0.2


class TestSetupLogging:
    def test_default_logging(self):
        """Default logging shows messages without timestamps."""
        import logging
        from lidar_pipeline.cli import setup_logging
        logger = setup_logging(verbose=False, debug=False)
        assert logger.level == logging.INFO
        assert len(logger.handlers) == 1
        # Format should not include timestamps
        fmt = logger.handlers[0].formatter._fmt
        assert "%(asctime)" not in fmt

    def test_verbose_logging(self):
        """Verbose logging includes timestamps."""
        import logging
        from lidar_pipeline.cli import setup_logging
        logger = setup_logging(verbose=True, debug=False)
        fmt = logger.handlers[0].formatter._fmt
        assert "%(asctime)" in fmt

    def test_debug_logging(self):
        """Debug logging includes file:line info."""
        import logging
        from lidar_pipeline.cli import setup_logging
        logger = setup_logging(verbose=False, debug=True)
        assert logger.level == logging.DEBUG
        fmt = logger.handlers[0].formatter._fmt
        assert "%(filename)" in fmt
        assert "%(lineno)" in fmt