#!/bin/bash

set -euo pipefail

# Hugging Face Spaces exposes a single external port via $PORT (usually 7860).
# Keep internal ports fixed; nginx listens on $PORT and proxies to them.
API_PORT="8000"
export PORT="${PORT:-7860}"

# Start FastAPI on API_PORT
echo "Starting OpenEnv API server on port ${API_PORT}..."
uvicorn server.app:app --host 0.0.0.0 --port "${API_PORT}" &

# Start the Streamlit Dashboard (User UI) in the background with Proxy-friendly settings
echo "Starting Streamlit Dashboard on port 8501..."
streamlit run patchhawk/app/dashboard.py \
    --server.port 8501 \
    --server.address 0.0.0.0 \
    --server.enableCORS false \
    --server.enableXsrfProtection false \
    --server.headless true \
    --browser.gatherUsageStats false &

# Give services a moment to bind
echo "Waiting for services to initialize..."
sleep 5

# Start Nginx in foreground on PORT
echo "Starting Nginx reverse proxy on ${PORT}..."
envsubst '${PORT}' < /etc/nginx/nginx.conf > /tmp/nginx.conf

# Validate Nginx config
nginx -t -c /tmp/nginx.conf
if [ $? -ne 0 ]; then
    echo "[ERROR] Nginx configuration validation failed!"
    exit 1
fi

exec nginx -c /tmp/nginx.conf -g "daemon off;"