import logging
import pytest
from ea_chatbot.utils.logging import get_logger

@pytest.fixture(autouse=True)
def reset_logging():
    """Reset the ea_chatbot logger handlers before each test."""
    logger = logging.getLogger("ea_chatbot")
    # Remove all existing handlers
    for handler in logger.handlers[:]:
        logger.removeHandler(handler)
    yield
    # Also clean up after test
    for handler in logger.handlers[:]:
        logger.removeHandler(handler)

def test_get_logger_singleton():
    """Test that get_logger returns the same logger instance for the same name."""
    logger1 = get_logger("test_logger")
    logger2 = get_logger("test_logger")
    assert logger1 is logger2

def test_get_logger_rich_handler():
    """Test that get_logger configures a RichHandler on root."""
    get_logger("test_rich")
    root = logging.getLogger("ea_chatbot")
    # Check if any handler is a RichHandler
    handler_names = [h.__class__.__name__ for h in root.handlers]
    assert "RichHandler" in handler_names

def test_get_logger_level():
    """Test that get_logger sets the correct log level."""
    logger = get_logger("test_level", level="DEBUG")
    assert logger.level == logging.DEBUG

def test_json_formatter_serializes_dict():
    """Test that JsonFormatter serializes log records to JSON."""
    from ea_chatbot.utils.logging import JsonFormatter
    import json
    
    formatter = JsonFormatter()
    record = logging.LogRecord(
        name="test", level=logging.INFO, pathname="test.py", lineno=10,
        msg="test message", args=(), exc_info=None
    )
    formatted = formatter.format(record)
    data = json.loads(formatted)
    
    assert data["message"] == "test message"
    assert data["level"] == "INFO"
    assert "timestamp" in data

def test_get_logger_file_handler(tmp_path):
    """Test that get_logger configures a file handler on root."""
    log_file = tmp_path / "test.json"
    logger = get_logger("test_file", log_file=str(log_file))
    
    root = logging.getLogger("ea_chatbot")
    handler_names = [h.__class__.__name__ for h in root.handlers]
    assert "RotatingFileHandler" in handler_names
    
    logger.info("file log test")
    
    # Check if file exists and has content
    assert log_file.exists()
    content = log_file.read_text()
    assert "file log test" in content