# Default server configuration
upstream frappe-bench-frappe {
    server backend:8000 fail_timeout=0;
}

upstream frappe-bench-socketio {
    server websocket:9000 fail_timeout=0;
}

# HTTP server
server {
    listen 80;
    server_name _;

    root /var/www/html/sites;

    # Health check endpoint
    location /health {
        access_log off;
        return 200 "healthy\n";
        add_header Content-Type text/plain;
    }

    # Static files
    location /assets {
        try_files $uri =404;
        add_header Cache-Control "max-age=31536000";
    }

    location ~ ^/protected/(.*) {
        internal;
        try_files /sites/$host/$1 =404;
    }

    # Socket.io
    location /socket.io {
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header X-Frappe-Site-Name $host;
        proxy_set_header Origin $scheme://$http_host;
        proxy_set_header Host $host;

        proxy_pass http://frappe-bench-socketio;
    }

    # Main application
    location / {
        proxy_http_version 1.1;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Frappe-Site-Name $host;
        proxy_set_header Host $host;
        proxy_set_header X-Use-X-Accel-Redirect True;
        proxy_read_timeout 120;
        proxy_redirect off;

        proxy_pass http://frappe-bench-frappe;
    }

    # Error pages
    error_page 502 /502.html;
    location = /502.html {
        root /usr/share/nginx/html;
        internal;
    }
}