upstream krdsh_quay_web {
    server unix:/home/user/quay-run-web/gunicorn_web.sock fail_timeout=0;
}
upstream krdsh_quay_registry {
    server unix:/home/user/quay-run-registry/gunicorn_registry.sock fail_timeout=0;
}
upstream krdsh_quay_secscan {
    server unix:/home/user/quay-run-secscan/gunicorn_secscan.sock fail_timeout=0;
}

map $http2:$http3
    $krdsh_quay_http1_bucket
{
    default  $request_id;

    ## current instanse is not behind LB/ingress,
    ## so $proxy_protocol_addr is meaningless
  # ":"  $proxy_protocol_addr;
    ":"  $remote_addr;
}

map $http2
    $krdsh_quay_http2_bucket
{
    default  $connection;

    ""  $request_id;
}

map $http3
    $krdsh_quay_http3_bucket
{
    default  $quic_connection;

    ""  $request_id;
}

map $uri
    $krdsh_quay_namespace
{
    default  "";

    # ~*^/v2/([^/]+)(?:/[^/]+)+/blobs/  $1;
    # ~*^/v2/([^/]+)/[^/]+/tags/       $1;
    # ~*^/v2/([^/]+)/[^/]+/manifests/  $1;
    ~*^/v2/([^/]+)(?:/[^/]+)+/(?:blobs|manifests|tags)/  $1;
}

## use $request_id to remove request limit
map $krdsh_quay_namespace
    $krdsh_quay_http1_ns_bucket
{
    default  $krdsh_quay_http1_bucket;

  # ~*^(?:k2|krd)$  $request_id;
}
map $krdsh_quay_namespace
    $krdsh_quay_http2_ns_bucket
{
    default  $krdsh_quay_http2_bucket;

  # ~*^(?:k2|krd)$  $request_id;
}
map $krdsh_quay_namespace
    $krdsh_quay_http3_ns_bucket
{
    default  $krdsh_quay_http3_bucket;

  # ~*^(?:k2|krd)$  $request_id;
}

map $cookie_patternfly
    $krdsh_quay_ui
{
    volatile;

    default  old;
    true     new;
}

limit_req_zone $http_authorization         zone=krdsh_quay_staticauth:10m rate=30r/s;

limit_req_zone $krdsh_quay_http1_bucket    zone=krdsh_quay_http1_light:10m    rate=60r/s;
limit_req_zone $krdsh_quay_http2_bucket    zone=krdsh_quay_http2_light:10m    rate=600r/s;
limit_req_zone $krdsh_quay_http3_bucket    zone=krdsh_quay_http3_light:10m    rate=600r/s;
limit_req_zone $krdsh_quay_http1_ns_bucket zone=krdsh_quay_http1_ns_light:10m rate=60r/s;
limit_req_zone $krdsh_quay_http2_ns_bucket zone=krdsh_quay_http2_ns_light:10m rate=600r/s;
limit_req_zone $krdsh_quay_http3_ns_bucket zone=krdsh_quay_http3_ns_light:10m rate=600r/s;

limit_req_zone $krdsh_quay_http1_bucket    zone=krdsh_quay_http1_medium:10m    rate=50r/s;
limit_req_zone $krdsh_quay_http2_bucket    zone=krdsh_quay_http2_medium:10m    rate=500r/s;
limit_req_zone $krdsh_quay_http3_bucket    zone=krdsh_quay_http3_medium:10m    rate=500r/s;
limit_req_zone $krdsh_quay_http1_ns_bucket zone=krdsh_quay_http1_ns_medium:10m rate=50r/s;
limit_req_zone $krdsh_quay_http2_ns_bucket zone=krdsh_quay_http2_ns_medium:10m rate=500r/s;
limit_req_zone $krdsh_quay_http3_ns_bucket zone=krdsh_quay_http3_ns_medium:10m rate=500r/s;

limit_req_zone $krdsh_quay_http1_bucket    zone=krdsh_quay_http1_heavy:10m    rate=5r/s;
limit_req_zone $krdsh_quay_http2_bucket    zone=krdsh_quay_http2_heavy:10m    rate=50r/s;
limit_req_zone $krdsh_quay_http3_bucket    zone=krdsh_quay_http3_heavy:10m    rate=50r/s;
limit_req_zone $krdsh_quay_http1_ns_bucket zone=krdsh_quay_http1_ns_heavy:10m rate=5r/s;
limit_req_zone $krdsh_quay_http2_ns_bucket zone=krdsh_quay_http2_ns_heavy:10m rate=50r/s;
limit_req_zone $krdsh_quay_http3_ns_bucket zone=krdsh_quay_http3_ns_heavy:10m rate=50r/s;

server {
    server_name quay.krd.sh;

    include snip.d/listen-http;

    access_log off;
    log_not_found off;

    root /var/www/empty;

    include snip.d/https-alt-svc;
    include snip.d/http-base-security-headers;

    keepalive_timeout 0;

    include snip.d/empty-favicon;

    location / {
        return 301 https://$host$uri$is_args$args;
    }
}

server {
    server_name quay.krd.sh;

    include snip.d/listen-https;
    include snip.d/ssl-krd.sh;

    access_log off;
    log_not_found off;

    root /var/www/empty;

    include snip.d/http-base-security-headers;

    include snip.d/proxy-common-headers;
    include snip.d/proxy-accept-encoding;
    include snip.d/proxy-connection-keepalive;
    include snip.d/proxy-early-data;

    proxy_set_header  Transfer-Encoding  $http_transfer_encoding;

    proxy_redirect  ~*^http://$host(?:|:[0-9]+)/(.*)$  https://$host/$1;

    error_page 502 /home/user/quay-run-static/static/502.html;

    location /static/ {
        root /home/user/quay-run-static;

        gzip_static    on;
        brotli_static  on;
        zstd_static    on;

        error_page  404  /404;
    }

    location / {
        root /home/user/quay-run-static/static/patternfly;
        index index.html;

        if ($krdsh_quay_ui = "old") {
            proxy_pass http://krdsh_quay_web;
        }
        if ($krdsh_quay_ui = "new") {
            rewrite
              ^(?:/overview|/organization|/repository|/tag)
              /index.html
            break;
        }
    }

    location /angular {
        # Expire cookie and switch to old UI
        add_header Set-Cookie "patternfly=deleted; path=/; Expires=Thu, Jan 01 1970 00:00:00 UTC";
        return 302 /$is_args$args;
    }

    location /react {
        # Set cookie and witch to new UI
        add_header Set-Cookie "patternfly=true; path=/; SameSite=Lax; HttpOnly;" always;
        return 302 /$is_args$args;
    }

    limit_req_status    429;
    limit_req_log_level warn;

    # Temporarily force signin for old and new UI to route to web app
    location /signin {
        proxy_pass http://krdsh_quay_web/;
    }

    # Capture traffic that needs to go to web_app, see /web.py
    location ~* ^(?:/config|/csrf_token|/oauth1|/oauth2|/webhooks|/keys|/.well-known|/customtrigger|/userfiles/) {
        proxy_pass http://krdsh_quay_web;
    }

    # Capture old UI paths that aren't present in new UI
    location ~* ^(?:/user/|/search) {
        proxy_pass http://krdsh_quay_web;
    }

    location /push {
        proxy_pass http://krdsh_quay_web;

        client_max_body_size 5M;
    }

    location /realtime {
        proxy_pass http://krdsh_quay_web;

        proxy_buffering off;
        proxy_request_buffering off;
    }

    location /secscan/ {
        proxy_pass http://krdsh_quay_secscan;
    }

    # location ~ ^/v2/(?:.+)/_trust/tuf/ {
    #     proxy_pass http://tuf.krd.sh$uri;
    # }

    location /api/ {
        proxy_pass http://krdsh_quay_web;

        limit_req zone=krdsh_quay_http1_heavy burst=25 nodelay;
        limit_req zone=krdsh_quay_http2_heavy burst=100 nodelay;
        limit_req zone=krdsh_quay_http3_heavy burst=100 nodelay;

        keepalive_timeout 0;
    }

    location /api/suconfig {
        proxy_pass http://krdsh_quay_web;

        proxy_read_timeout 2000;
    }

    ## Docker Registry V2

    location ~ ^/v2 {
        proxy_pass http://krdsh_quay_registry;

        # if ($request_method = HEAD) {
        #     gzip   off;
        #     brotli off;
        #     zstd   off;
        # }

        limit_req zone=krdsh_quay_http1_light burst=20 nodelay;
        limit_req zone=krdsh_quay_http2_light burst=80 nodelay;
        limit_req zone=krdsh_quay_http3_light burst=80 nodelay;

        keepalive_timeout 0;
    }

    location = /v2/auth {
        proxy_pass http://krdsh_quay_registry;

        limit_req zone=krdsh_quay_staticauth burst=2 nodelay;

        keepalive_timeout 0;
    }

    location ~ ^/v2/_catalog(?:.*)$ {
        proxy_pass http://krdsh_quay_registry;

        proxy_read_timeout 10;
        keepalive_timeout 0;

        limit_req zone=krdsh_quay_http1_heavy burst=1 nodelay;
        limit_req zone=krdsh_quay_http2_heavy burst=5 nodelay;
        limit_req zone=krdsh_quay_http3_heavy burst=5 nodelay;
    }

    location ~ ^/v2/(?:[^/]+)(?:/[^/]+)+/blobs/ {
        proxy_pass http://krdsh_quay_registry;

        # if ($request_method = HEAD) {
        #     gzip   off;
        #     brotli off;
        #     zstd   off;
        # }

        proxy_buffering off;
        proxy_request_buffering off;

        proxy_read_timeout  2000;
        proxy_send_timeout  2000;

        client_max_body_size 20g;
        http2_chunk_size 32k;

        limit_req zone=krdsh_quay_http1_ns_medium burst=50 nodelay;
        limit_req zone=krdsh_quay_http2_ns_medium burst=100 nodelay;
        limit_req zone=krdsh_quay_http3_ns_medium burst=100 nodelay;

        keepalive_timeout 0;
    }

    location ~ ^/v2/(?:[^/]+)/[^/]+/tags/ {
        proxy_pass http://krdsh_quay_registry;

        limit_req zone=krdsh_quay_http1_ns_heavy burst=2 nodelay;
        limit_req zone=krdsh_quay_http2_ns_heavy burst=2 nodelay;
        limit_req zone=krdsh_quay_http3_ns_heavy burst=2 nodelay;

        keepalive_timeout 0;
    }

    location ~ ^/v2/(?:[^/]+)/[^/]+/manifests/ {
        proxy_pass http://krdsh_quay_registry;

        limit_req zone=krdsh_quay_http1_ns_medium burst=10 nodelay;
        limit_req zone=krdsh_quay_http2_ns_medium burst=50 nodelay;
        limit_req zone=krdsh_quay_http3_ns_medium burst=50 nodelay;

        keepalive_timeout 0;
    }

    ## Docker Registry V1
    ## KrD: seems to be legacy

    location /v1/ {
        proxy_pass http://krdsh_quay_registry;

        proxy_buffering off;
        proxy_request_buffering off;

        client_max_body_size 20g;

        limit_req zone=krdsh_quay_http1_heavy burst=5 nodelay;
        limit_req zone=krdsh_quay_http2_heavy burst=25 nodelay;
        limit_req zone=krdsh_quay_http3_heavy burst=25 nodelay;

        keepalive_timeout 0;
    }

    location = /v1/_ping {
        default_type text/plain;

        add_header  X-Docker-Registry-Version     0.6.0;
        add_header  X-Docker-Registry-Standalone  0;

        return 200 "true";
    }

    ## quirks
    chunked_transfer_encoding off;
}