map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

upstream oct {
    server application:9000;
}

server {
    listen 80;
    listen [::]:80;
    index index.php;
    server_name _;
    server_tokens off;
    root /app/public;

    charset utf-8;

    location /index.php {
        try_files /not_exists @octane;
    }

    location /health {
        add_header Content-Type text/plain;
        return 200 'alive';
    }

    location /rr-metrics {
        proxy_pass http://application:9180;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_set_header X-Forwarded-Port $server_port;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_read_timeout 1200s;
    }

    location /app {
        # WebSocket support
        proxy_pass http://reverb:8080;
        proxy_http_version 1.1;
        
        # WebSocket headers
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        
        # Standard headers
        proxy_set_header Host $http_host;
        proxy_set_header Scheme $http_x_forwarded_proto;
        proxy_set_header X-Real-IP $http_x_real_ip;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;
        
        # WebSocket timeouts
        proxy_read_timeout 86400;
        proxy_send_timeout 86400;
        proxy_connect_timeout 60;
        
        # Disable buffering for WebSocket
        proxy_buffering off;
        proxy_cache off;
    }

    location / {
        try_files $uri $uri/ @octane;
    }

    location = /favicon.ico { access_log off; log_not_found off; }
    location = /robots.txt  { access_log off; log_not_found off; }

    access_log off;
    error_log  /var/log/nginx/default.error.log error;

    error_page 404 /index.php;

    location @octane {
        set $suffix "";

        if ($uri = /index.php) {
            set $suffix ?$query_string;
        }

        proxy_http_version 1.1;
        proxy_set_header Host $http_host;
        proxy_set_header Scheme $http_x_forwarded_proto;

        proxy_set_header X-Real-IP $http_x_real_ip;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;

        proxy_pass http://oct$suffix;
    }
}