Framework Availability Detection

from praisonai._framework_availability import is_available

# Check if CrewAI is available
if is_available("crewai"):
    print("CrewAI is installed and importable")

# Check AG2 (special detection logic)
if is_available("ag2"):
    print("AG2 is available (both distribution and namespace)")

# Check multiple frameworks
frameworks = ["autogen", "autogen_v4", "crewai", "ag2"]
available = [fw for fw in frameworks if is_available(fw)]
print(f"Available frameworks: {available}")

from praisonai._framework_availability import is_available

# This checks both AG2 distribution AND autogen namespace
if is_available("ag2"):
    print("AG2 is properly installed and autogen namespace is available")

from praisonai._framework_availability import is_available, invalidate

# First call - performs actual import check
result1 = is_available("crewai")  # Slow: actual import

# Subsequent calls - returns cached result
result2 = is_available("crewai")  # Fast: cached

# Invalidate specific framework
invalidate("crewai")
result3 = is_available("crewai")  # Slow: re-checks import

# Invalidate entire cache
invalidate()  # Clear all cached results

import threading
from praisonai._framework_availability import is_available

def worker():
    # Safe to call from multiple threads
    return is_available("crewai")

threads = [threading.Thread(target=worker) for _ in range(10)]
for t in threads:
    t.start()
for t in threads:
    t.join()

from praisonai._framework_availability import is_available
from praisonai.framework_adapters.base import BaseFrameworkAdapter

class MyAdapter(BaseFrameworkAdapter):
    name = "myframework"
    
    def is_available(self) -> bool:
        return is_available("myframework")  # Uses centralized detection

import unittest.mock
from praisonai._framework_availability import is_available, invalidate

def test_framework_detection():
    # Clear any cached results
    invalidate()
    
    with unittest.mock.patch('importlib.util.find_spec', return_value=None):
        assert not is_available("crewai")
    
    # Clear cache again for clean test state
    invalidate()