"""
Verify that memory implementation is correct without running tests.
Checks imports, class structure, and method signatures.
"""

import sys
import os
import importlib.util
import inspect

print("=" * 60)
print("FAISS Memory System Implementation Verification")
print("=" * 60)

# Add core to path
sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'core'))

print("\n1. Testing imports...")
try:
    from memory import AgentMemory
    print("   ✓ AgentMemory imported successfully")
except Exception as e:
    print(f"   ✗ Failed to import AgentMemory: {e}")
    sys.exit(1)

print("\n2. Checking class structure...")
required_methods = [
    '__init__',
    'add',
    'search',
    'is_duplicate',
    'clear',
    'save',
    'load',
    'get_stats',
    'get_all_tasks',
    '__len__',
    '__repr__'
]

for method in required_methods:
    if hasattr(AgentMemory, method):
        print(f"   ✓ {method} method exists")
    else:
        print(f"   ✗ {method} method missing")

print("\n3. Checking __init__ signature...")
sig = inspect.signature(AgentMemory.__init__)
params = list(sig.parameters.keys())
print(f"   Parameters: {params}")
expected_params = ['self', 'dimension', 'k', 'similarity_threshold', 'dedup_threshold', 'embedder']
for param in expected_params:
    if param in params:
        print(f"   ✓ {param} parameter exists")
    else:
        print(f"   ✗ {param} parameter missing")

print("\n4. Checking add() method signature...")
sig = inspect.signature(AgentMemory.add)
params = list(sig.parameters.keys())
print(f"   Parameters: {params}")
expected_params = ['self', 'task', 'result', 'metadata', 'skip_dedup']
for param in expected_params:
    if param in params:
        print(f"   ✓ {param} parameter exists")
    else:
        print(f"   ✗ {param} parameter missing")

print("\n5. Checking search() method signature...")
sig = inspect.signature(AgentMemory.search)
params = list(sig.parameters.keys())
print(f"   Parameters: {params}")
expected_params = ['self', 'query', 'k', 'threshold']
for param in expected_params:
    if param in params:
        print(f"   ✓ {param} parameter exists")
    else:
        print(f"   ✗ {param} parameter missing")

print("\n6. Checking dependencies...")
try:
    import faiss
    print(f"   ✓ faiss imported (version: {faiss.__version__ if hasattr(faiss, '__version__') else 'unknown'})")
except ImportError:
    print("   ✗ faiss not installed")

try:
    import numpy as np
    print(f"   ✓ numpy imported (version: {np.__version__})")
except ImportError:
    print("   ✗ numpy not installed")

print("\n7. Checking core/agent.py integration...")
try:
    # Read agent.py to check for memory integration
    agent_path = os.path.join(os.path.dirname(__file__), 'core', 'agent.py')
    with open(agent_path, 'r') as f:
        agent_code = f.read()

    checks = [
        ('from .memory import AgentMemory', 'AgentMemory import'),
        ('from .embeddings import EmbeddingModel', 'EmbeddingModel import'),
        ('self.memory = AgentMemory(', 'AgentMemory instantiation'),
        ('memory.search(', 'Memory search usage'),
        ('memory.add(', 'Memory add usage'),
    ]

    for pattern, desc in checks:
        if pattern in agent_code:
            print(f"   ✓ {desc} found")
        else:
            print(f"   ✗ {desc} not found")

except Exception as e:
    print(f"   ✗ Failed to check agent.py: {e}")

print("\n8. Checking core/__init__.py exports...")
try:
    init_path = os.path.join(os.path.dirname(__file__), 'core', '__init__.py')
    with open(init_path, 'r') as f:
        init_code = f.read()

    if 'from .memory import AgentMemory' in init_code:
        print("   ✓ AgentMemory imported in __init__.py")
    else:
        print("   ✗ AgentMemory not imported in __init__.py")

    if '"AgentMemory"' in init_code or "'AgentMemory'" in init_code:
        print("   ✓ AgentMemory in __all__")
    else:
        print("   ✗ AgentMemory not in __all__")

except Exception as e:
    print(f"   ✗ Failed to check __init__.py: {e}")

print("\n9. Checking docstrings...")
if AgentMemory.__doc__:
    print(f"   ✓ Class has docstring ({len(AgentMemory.__doc__)} chars)")
else:
    print("   ✗ Class missing docstring")

for method in ['add', 'search', 'save', 'load']:
    method_obj = getattr(AgentMemory, method)
    if method_obj.__doc__:
        print(f"   ✓ {method}() has docstring")
    else:
        print(f"   ✗ {method}() missing docstring")

print("\n" + "=" * 60)
print("Implementation Verification Complete")
print("=" * 60)
print("\nNote: Full functional testing requires running test_memory_direct.py")
print("The paging file error is a Windows memory limit issue, not a code bug.")
print("\nTo run on a machine with more memory:")
print("  python test_memory_direct.py")