"""
Simple test script to verify the Gradio setup
Run this before launching the full app to check configuration
"""

import os
import sys
from dotenv import load_dotenv

print("=" * 60)
print("🧪 Gradio Setup Verification")
print("=" * 60)

# Test 1: Check environment file
print("\n1️⃣  Checking environment file...")
env_path = os.path.join(os.path.dirname(__file__), "rag_agent", ".env")
if os.path.exists(env_path):
    print(f"   ✅ Found .env file at: {env_path}")
    load_dotenv(env_path)
else:
    print(f"   ❌ .env file not found at: {env_path}")
    sys.exit(1)

# Test 2: Check environment variables
print("\n2️⃣  Checking environment variables...")
PROJECT_ID = os.environ.get("GOOGLE_CLOUD_PROJECT")
LOCATION = os.environ.get("GOOGLE_CLOUD_LOCATION")

if PROJECT_ID:
    print(f"   ✅ GOOGLE_CLOUD_PROJECT: {PROJECT_ID}")
else:
    print("   ❌ GOOGLE_CLOUD_PROJECT not set")
    sys.exit(1)

if LOCATION:
    print(f"   ✅ GOOGLE_CLOUD_LOCATION: {LOCATION}")
else:
    print("   ⚠️  GOOGLE_CLOUD_LOCATION not set, defaulting to 'us-central1'")
    LOCATION = "us-central1"

# Test 3: Check Python packages
print("\n3️⃣  Checking required packages...")
required_packages = {
    "gradio": "Gradio UI framework",
    "vertexai": "Vertex AI SDK",
    "google.cloud.aiplatform_v1beta1": "AI Platform Client",
    "dotenv": "Environment loader"
}

all_packages_ok = True
for package, description in required_packages.items():
    try:
        __import__(package.replace("-", "_"))
        print(f"   ✅ {package}: {description}")
    except ImportError:
        print(f"   ❌ {package}: NOT INSTALLED - {description}")
        all_packages_ok = False

if not all_packages_ok:
    print("\n   ⚠️  Missing packages. Install with:")
    print("   pip install -r requirements.txt")
    sys.exit(1)

# Test 4: Check Google Cloud authentication
print("\n4️⃣  Checking Google Cloud authentication...")
try:
    from google.auth import default
    credentials, project = default()
    print(f"   ✅ Authenticated with project: {project}")
except Exception as e:
    print(f"   ❌ Authentication error: {e}")
    print("   Run: gcloud auth application-default login")
    sys.exit(1)

# Test 5: Try to list agents
print("\n5️⃣  Testing Agent Engine connection...")
try:
    from google.cloud import aiplatform_v1beta1 as aiplatform
    
    client = aiplatform.AgentEnginesServiceClient(
        client_options={"api_endpoint": f"{LOCATION}-aiplatform.googleapis.com"}
    )
    parent = f"projects/{PROJECT_ID}/locations/{LOCATION}"
    request = aiplatform.ListAgentEnginesRequest(parent=parent)
    
    agents = list(client.list_agent_engines(request=request))
    
    if agents:
        print(f"   ✅ Successfully connected! Found {len(agents)} agent(s):")
        for agent in agents:
            display_name = agent.display_name or agent.name.split("/")[-1]
            print(f"      • {display_name}")
    else:
        print("   ⚠️  Connected, but no agents found")
        print("   Deploy an agent with: make deploy")
        
except Exception as e:
    print(f"   ❌ Connection error: {e}")
    print("   Check your project ID and location")
    sys.exit(1)

# All tests passed
print("\n" + "=" * 60)
print("✅ All checks passed! Ready to launch Gradio app")
print("=" * 60)
print("\nRun the app with:")
print("  python gradio_app_v2.py")
print("\nOr:")
print("  python run_gradio.py")
print()