# pict-rs configuration for NixOS
# Import this file into your configuration.nix to run pict-rs on 0.0.0.0:6033

{ domain, ... }:

{
  services.pict-rs = {
    enable = true;
    port = 6033;
  };

  # nginx reverse proxy configuration with CORS support
  services.nginx.virtualHosts."img.${domain}" = {
    forceSSL = true;
    enableACME = true;
    locations."/" = {
      proxyPass = "http://127.0.0.1:6033";
      proxyWebsockets = true;
      extraConfig = ''
        client_max_body_size 50M;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_connect_timeout 30s;
        proxy_send_timeout 30s;
        proxy_read_timeout 30s;

        # CORS headers for web app integration
        add_header Access-Control-Allow-Origin "*" always;
        add_header Access-Control-Allow-Methods "GET, POST, DELETE, OPTIONS" always;
        add_header Access-Control-Allow-Headers "Content-Type, Authorization, X-Requested-With" always;
        add_header Access-Control-Max-Age 86400 always;

        # Handle preflight OPTIONS requests
        if ($request_method = 'OPTIONS') {
          add_header Access-Control-Allow-Origin "*";
          add_header Access-Control-Allow-Methods "GET, POST, DELETE, OPTIONS";
          add_header Access-Control-Allow-Headers "Content-Type, Authorization, X-Requested-With";
          add_header Access-Control-Max-Age 86400;
          add_header Content-Length 0;
          add_header Content-Type text/plain;
          return 204;
        }
      '';
    };
  };
}


# use # Upload a PNG file 
# curl -X POST -F "images=@myimage.png" https://img.test.mydomain.com/image