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

upstream mastodon_backend {
  server 127.0.0.1:3000 fail_timeout=0;
}

upstream mastodon_streaming {
  server 127.0.0.1:4000 fail_timeout=0;
}

server {
  listen 8082;
  listen [::]:8082;
  server_name mastodon.vish.gg;

  keepalive_timeout    70;
  sendfile             on;
  client_max_body_size 80m;

  root /opt/mastodon/public;

  gzip on;
  gzip_disable "msie6";
  gzip_vary on;
  gzip_proxied any;
  gzip_comp_level 6;
  gzip_buffers 16 8k;
  gzip_http_version 1.1;
  gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml image/x-icon;

  location / {
    try_files $uri @proxy;
  }

  location /sw.js {
    add_header Cache-Control "public, max-age=604800, must-revalidate";
    try_files $uri =404;
  }

  location ~ ^/assets/ {
    add_header Cache-Control "public, max-age=2419200, must-revalidate";
    try_files $uri =404;
  }

  location ~ ^/avatars/ {
    add_header Cache-Control "public, max-age=2419200, must-revalidate";
    try_files $uri =404;
  }

  location ~ ^/emoji/ {
    add_header Cache-Control "public, max-age=2419200, must-revalidate";
    try_files $uri =404;
  }

  location ~ ^/headers/ {
    add_header Cache-Control "public, max-age=2419200, must-revalidate";
    try_files $uri =404;
  }

  location ~ ^/packs/ {
    add_header Cache-Control "public, max-age=2419200, must-revalidate";
    try_files $uri =404;
  }

  location ~ ^/shortcuts/ {
    add_header Cache-Control "public, max-age=2419200, must-revalidate";
    try_files $uri =404;
  }

  location ~ ^/sounds/ {
    add_header Cache-Control "public, max-age=2419200, must-revalidate";
    try_files $uri =404;
  }

  location ~ ^/system/ {
    add_header Cache-Control "public, max-age=2419200, immutable";
    try_files $uri =404;
  }

  location ^~ /api/v1/streaming {
    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_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $connection_upgrade;

    proxy_pass http://mastodon_streaming;
    proxy_buffering off;
    proxy_redirect off;
    proxy_http_version 1.1;

    tcp_nodelay on;
  }

  location @proxy {
    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_set_header Proxy "";
    proxy_pass_header Server;

    proxy_pass http://mastodon_backend;
    proxy_buffering on;
    proxy_redirect off;
    proxy_http_version 1.1;

    proxy_cache_bypass $http_upgrade;

    tcp_nodelay on;
  }

  error_page 404 500 501 502 503 504 /500.html;
}