#!/bin/bash
# Health check and auto-restart script for QBPOS Help site

DOMAIN="quickbookposhelp.access.ly"
LOG_FILE="/var/log/qbpos-health-check.log"

# Function to log messages
log_message() {
    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" >> "$LOG_FILE"
}

# Check if nginx is running
if ! systemctl is-active --quiet nginx; then
    log_message "ERROR: Nginx is not running. Attempting to start..."
    systemctl start nginx
    if [ $? -eq 0 ]; then
        log_message "SUCCESS: Nginx restarted successfully"
    else
        log_message "CRITICAL: Failed to restart Nginx"
        exit 1
    fi
fi

# Check if the site responds
HTTP_CODE=$(curl -s -o /dev/null -w "%{http_code}" -m 10 "https://$DOMAIN" 2>/dev/null)

if [ "$HTTP_CODE" != "200" ]; then
    log_message "WARNING: Site returned HTTP $HTTP_CODE. Reloading nginx..."
    systemctl reload nginx
    sleep 2
    
    # Check again
    HTTP_CODE=$(curl -s -o /dev/null -w "%{http_code}" -m 10 "https://$DOMAIN" 2>/dev/null)
    if [ "$HTTP_CODE" = "200" ]; then
        log_message "SUCCESS: Site recovered after reload"
    else
        log_message "ERROR: Site still not responding properly (HTTP $HTTP_CODE)"
    fi
else
    log_message "OK: Site is healthy (HTTP $HTTP_CODE)"
fi