start.sh

#!/bin/bash
# Railway startup script for AGS SPARQL Agent MCP Server (Streamable HTTP)

set -e

echo "🚀 Starting AGS SPARQL Agent MCP Server (Streamable HTTP)"
echo "📋 Environment:"
echo "   PORT: ${PORT:-8000}"
echo "   HOST: ${HOST:-0.0.0.0}"
echo "   PWD: $(pwd)"
echo "   Python version: $(python --version)"

# Check if required environment variables are set
if [ -z "$ANZO_SERVER" ]; then
    echo "⚠️  Warning: ANZO_SERVER not set"
fi

if [ -z "$ANZO_USERNAME" ]; then
    echo "⚠️  Warning: ANZO_USERNAME not set"
fi

if [ -z "$GRAPHMART_URI" ]; then
    echo "⚠️  Warning: GRAPHMART_URI not set"
fi

# List files to debug
echo "📁 Directory contents:"
ls -la
echo "📁 src directory:"
ls -la src/

# Check Python packages
echo "📦 Checking key packages:"
python -c "import mcp; print('MCP version:', mcp.__version__)" || echo "❌ MCP not found"
python -c "import asyncio; print('✅ asyncio available')" || echo "❌ asyncio not found"

echo "🚀 Starting Streamable HTTP server..."
echo "🌐 MCP endpoint will be: http://${HOST:-0.0.0.0}:${PORT:-8000}/mcp"

# Start the server with explicit error handling
python src/ags_sparql_agent_server.py --host ${HOST:-0.0.0.0} --port ${PORT:-8000} || {
    echo "❌ Server failed to start, exit code: $?"
    exit 1
}