events {
    worker_connections 1024;
}

http {
    proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=peertube_cache:10m max_size={{ cache_size_gb }}g use_temp_path=off;

    server {
        listen 9000;

        # Hide nginx version
        server_tokens off;

        # Enable compression for JS/CSS/HTML bundle, for improved client load times.
        # It might be nice to compress JSON, but leaving that out to protect against potential
        # compression+encryption information leak attacks like BREACH.
        gzip on;
        gzip_types text/css application/javascript;
        gzip_vary on;

        # Enable HSTS
        # Tells browsers to stick with HTTPS and never visit the insecure HTTP
        # version. Once a browser sees this header, it will only visit the site over
        # HTTPS for the next 2 years: (read more on hstspreload.org)
        add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";

        add_header Referrer-Policy "same-origin";

        location / {
            proxy_pass              http://peertube:9000;
            proxy_set_header        X-Real-IP $remote_addr;
            proxy_set_header        Host $host;
            proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
            client_max_body_size    600M;
            proxy_connect_timeout   600;
            proxy_send_timeout      600;
            proxy_read_timeout      600;
            send_timeout            600;
        }
        location ~ ^/(static/(thumbnails|previews|avatars)|client)/ {
            proxy_pass              http://peertube:9000;
            proxy_cache             peertube_cache;
            proxy_cache_use_stale   error timeout http_500 http_502 http_503 http_504;
            proxy_cache_revalidate  on;
            proxy_cache_min_uses    3;
            proxy_cache_lock        on;
            add_header              X-Cached $upstream_cache_status;
        }
        location ~ ^/static/(webseed|redundancy)/ {
            # NOTE: Its not possible to use proxy_cache for files that are served from disk without complicated workarounds
            #       Anyway caching is not a great idea because files are changed on disk after transcoding.
            #slice                   1m;
            #proxy_cache             peertube_cache;
            #proxy_cache_valid       206 1h;
            #proxy_cache_key         $uri$is_args$args$slice_range;
            #proxy_set_header        Range $slice_range;
            #proxy_http_version      1.1;
            #proxy_pass              http://peertube:9000;
            # required workaround for https://github.com/Chocobozzz/PeerTube/issues/1777
            #proxy_ignore_headers    Cache-Control;
            # for debugging
            #add_header              X-Cache-Status $upstream_cache_status;

            # Clients usually have 4 simultaneous webseed connections, so the real limit is 3MB/s per client
            limit_rate 800k;

            if ($request_method = 'OPTIONS') {
                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
                add_header 'Access-Control-Allow-Headers' 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
                add_header 'Access-Control-Max-Age' 1728000;
                add_header 'Content-Type' 'text/plain charset=UTF-8';
                add_header 'Content-Length' 0;
                return 204;
            }

            if ($request_method = 'GET') {
                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
                add_header 'Access-Control-Allow-Headers' 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';

                # Don't spam access log file with byte range requests
                access_log off;
            }

            root /data-external;

            rewrite ^/static/webseed/(.*)$ /videos/$1 break;
            rewrite ^/static/redundancy/(.*)$ /redundancy/$1 break;

            try_files $uri /;
        }
    }
}