#!/bin/sh

PORT=${PORT:-9876}
if ! [ "$PORT" -ge 1 ] 2>/dev/null || ! [ "$PORT" -le 65535 ] 2>/dev/null; then
  echo "Warning: Invalid PORT '$PORT', using default 9876"
  PORT=9876
fi

echo "Generating Apache configuration with PORT=$PORT"
envsubst '${PORT}' < /usr/local/apache2/conf/httpd.conf.template > /usr/local/apache2/conf/httpd.conf

echo "Testing Apache configuration..."
if ! httpd -t; then
  echo "ERROR: Apache configuration test failed!"
  echo "Configuration file contents:"
  cat /usr/local/apache2/conf/httpd.conf
  exit 1
fi

echo "Checking htdocs directory..."
ls -la /usr/local/apache2/htdocs/ | head -20
echo "File count: $(find /usr/local/apache2/htdocs -type f | wc -l)"

echo "Checking if port $PORT is available..."
if ! netstat -tuln 2>/dev/null | grep -q ":$PORT "; then
  echo "Port $PORT appears to be available"
else
  echo "WARNING: Port $PORT might be in use"
fi

echo "Starting Apache on port $PORT..."
echo "Apache will run with PID: $$"
# Run httpd in foreground with error logging, redirect stderr to stdout
exec httpd -D FOREGROUND -e info 2>&1