#!/bin/bash
# Entrypoint script for Hugging Face Spaces deployment
# Launches MCP Toolbox and Gradio multi-agent assistant

set -e

echo "=================================================="
echo "🚀 Starting PortfolioMind Multi-Agent Assistant"
echo "=================================================="

# Validate required environment variables
echo "📋 Validating configuration..."

REQUIRED_VARS=(
    "GOOGLE_API_KEY"
    "CHROMA_API_KEY"
    "CHROMA_TENANT"
    "CHROMA_DATABASE"
    "ALPHA_VANTAGE_API_KEY"
)

MISSING_VARS=()
for var in "${REQUIRED_VARS[@]}"; do
    if [ -z "${!var}" ]; then
        MISSING_VARS+=("$var")
    fi
done

if [ ${#MISSING_VARS[@]} -gt 0 ]; then
    echo "❌ Missing required environment variables:"
    for var in "${MISSING_VARS[@]}"; do
        echo "   - $var"
    done
    echo ""
    echo "Please configure these in Hugging Face Space Settings > Variables and Secrets"
    exit 1
fi

echo "✅ All required environment variables are set"
echo ""

# Start MCP Toolbox if Cloud SQL is configured
if [ -n "$GCP_PROJECT_ID" ] && [ -n "$CLOUD_SQL_INSTANCE" ]; then
    echo ""
    echo "🚀 Starting MCP Toolbox (Cloud SQL) on port 5000..."
    echo "=================================================="
    
    # Configure GCP credentials if provided as JSON string
    if [ -n "$GCP_SERVICE_ACCOUNT_JSON" ]; then
        echo "   ✓ Configuring GCP credentials from environment variable..."
        mkdir -p /app/credentials
        echo "$GCP_SERVICE_ACCOUNT_JSON" > /app/credentials/gcp-key.json
        export GOOGLE_APPLICATION_CREDENTIALS=/app/credentials/gcp-key.json
        echo "   ✓ GCP credentials configured"
    fi
    
    # Substitute environment variables in tools.yaml
    echo "   → Preparing tools.yaml with environment variables..."
    envsubst < /app/tools.yaml > /tmp/tools.yaml
    
    # Start MCP Toolbox server in background
    echo "   → Starting MCP Toolbox server..."
    /usr/local/bin/toolbox \
        --tools-file /tmp/tools.yaml \
        --address 0.0.0.0 \
        --port 5000 > /tmp/toolbox.log 2>&1 &
    
    TOOLBOX_PID=$!
    echo "   ✓ MCP Toolbox started (PID: $TOOLBOX_PID)"
    
    # Give it a moment to start
    sleep 3
    echo "   ✅ MCP Toolbox should be ready!"
else
    echo ""
    echo "⚠ Skipping MCP Toolbox - Cloud SQL not configured"
    echo "   Set GCP_PROJECT_ID and CLOUD_SQL_INSTANCE to enable Finance Tracker"
fi

echo ""
echo "🎯 Starting Gradio application on port 7860..."
echo "=================================================="
echo ""

# Set Python path to include /app
export PYTHONPATH=/app:$PYTHONPATH

# Suppress gRPC verbose logging
export GRPC_VERBOSITY=ERROR

# Launch Gradio app with native MCP support
cd /app
exec python -u ui/gradio_app.py