user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
    worker_connections 2048;
    # multi_accept on;
}

http {
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_requests 30;
    keepalive_timeout 65;
    types_hash_max_size 2048;

    server_tokens off;

    reset_timedout_connection on;
    client_body_timeout 20s;
    client_header_timeout 20s;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    error_log /dev/stdout;
    access_log /dev/stdout;

    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_static on;
    gzip_comp_level 4;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;

    gzip_types text/plain text/css text/javascript application/javascript application/json application/transit+json;

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

    server {
        listen 80 default_server;
        server_name _;

        client_max_body_size 6M;
        charset utf-8;

        proxy_http_version 1.1;
        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Scheme $scheme;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        etag off;
        root /var/www/app/;

        location ~* \.(js|css).*$ {
            add_header Cache-Control "max-age=86400" always; # 24 hours
        }

        location ~* \.(html).*$ {
            add_header Cache-Control "no-cache, max-age=0" always;
        }

        location /api {
            proxy_pass http://penpot-backend:6060/api;
        }

        location /dbg {
            proxy_pass http://penpot-backend:6060/dbg;
        }

        location /export {
            proxy_pass http://penpot-exporter:6061;
        }

        location /ws/notifications {
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection 'upgrade';
            proxy_pass http://penpot-backend:6060/ws/notifications;
        }

        location @handle_redirect {
            set $redirect_uri "$upstream_http_location";
            set $redirect_host "$upstream_http_x_host";
            set $redirect_cache_control "$upstream_http_cache_control";

            proxy_buffering off;

            proxy_set_header Host "$redirect_host";
            proxy_hide_header etag;
            proxy_hide_header x-amz-id-2;
            proxy_hide_header x-amz-request-id;
            proxy_hide_header x-amz-meta-server-side-encryption;
            proxy_hide_header x-amz-server-side-encryption;
            proxy_pass $redirect_uri;

            add_header x-internal-redirect "$redirect_uri";
            add_header x-cache-control "$redirect_cache_control";
            add_header cache-control "$redirect_cache_control";
        }

        location /assets {
            proxy_pass http://penpot-backend:6060/assets;
            recursive_error_pages on;
            proxy_intercept_errors on;
            error_page 301 302 307 = @handle_redirect;
        }

        location /internal/assets {
            internal;
            alias /opt/data/assets;
            add_header x-internal-redirect "$upstream_http_x_accel_redirect";
        }
    }
}