{ env, yourls, yourls-plugins }:
rec {
  activationScript = {
    deps = [ "httpd" ];
    text = ''
      install -m 0755 -o ${apache.user} -g ${apache.group} -d /var/lib/php/sessions/yourls
    '';
  };
  keys = [{
    dest = "webapps/tools-yourls";
    user = apache.user;
    group = apache.group;
    permissions = "0400";
    text = ''
      <?php
      define( 'YOURLS_DB_USER', '${env.mysql.user}' );
      define( 'YOURLS_DB_PASS', '${env.mysql.password}' );
      define( 'YOURLS_DB_NAME', '${env.mysql.database}' );
      define( 'YOURLS_DB_HOST', '${env.mysql.host}' );
      define( 'YOURLS_DB_PREFIX', 'yourls_' );
      define( 'YOURLS_SITE', 'https://tools.immae.eu/url' );
      define( 'YOURLS_HOURS_OFFSET', 0 ); 
      define( 'YOURLS_LANG', ''' ); 
      define( 'YOURLS_UNIQUE_URLS', true );
      define( 'YOURLS_PRIVATE', true );
      define( 'YOURLS_COOKIEKEY', '${env.cookieKey}' );
      $yourls_user_passwords = array();
      define( 'YOURLS_DEBUG', false );
      define( 'YOURLS_URL_CONVERT', 36 );
      $yourls_reserved_URL = array();
      define( 'LDAPAUTH_HOST', 'ldaps://${env.ldap.host}' );
      define( 'LDAPAUTH_PORT', '636' );
      define( 'LDAPAUTH_BASE', '${env.ldap.base}' );
      define( 'LDAPAUTH_SEARCH_USER', '${env.ldap.dn}' );
      define( 'LDAPAUTH_SEARCH_PASS', '${env.ldap.password}' );

      define( 'LDAPAUTH_GROUP_ATTR', 'memberof' );
      define( 'LDAPAUTH_GROUP_REQ', 'cn=admin,cn=yourls,ou=services,dc=immae,dc=eu');

      define( 'LDAPAUTH_USERCACHE_TYPE', 0);
    '';
  }];
  webRoot = (yourls.override { yourls_config = "/var/secrets/webapps/tools-yourls"; }).withPlugins
    (builtins.attrValues yourls-plugins);
  apache = rec {
    user = "wwwrun";
    group = "wwwrun";
    modules = [ "proxy_fcgi" ];
    webappName = "tools_yourls";
    root = "/run/current-system/webapps/${webappName}";
    vhostConf = ''
      Alias /url "${root}"
      <Directory "${root}">
        <FilesMatch "\.php$">
          SetHandler "proxy:unix:${phpFpm.socket}|fcgi://localhost"
        </FilesMatch>

        AllowOverride None
        Require all granted
        <IfModule mod_rewrite.c>
          RewriteEngine On
          RewriteBase /url/
          RewriteCond %{REQUEST_FILENAME} !-f
          RewriteCond %{REQUEST_FILENAME} !-d
          RewriteRule ^.*$ /url/yourls-loader.php [L]
        </IfModule>
        DirectoryIndex index.php
      </Directory>
      '';
  };
  phpFpm = rec {
    serviceDeps = [ "mysql.service" "openldap.service" ];
    basedir = builtins.concatStringsSep ":" (
      [ webRoot "/var/secrets/webapps/tools-yourls" ]
      ++ webRoot.plugins);
    socket = "/var/run/phpfpm/yourls.sock";
    pool = ''
      user = ${apache.user}
      group = ${apache.group}
      listen.owner = ${apache.user}
      listen.group = ${apache.group}
      pm = ondemand
      pm.max_children = 60
      pm.process_idle_timeout = 60

      ; Needed to avoid clashes in browser cookies (same domain)
      php_value[session.name] = YourlsPHPSESSID
      php_admin_value[open_basedir] = "${basedir}:/tmp:/var/lib/php/sessions/yourls"
      php_admin_value[session.save_path] = "/var/lib/php/sessions/yourls"
      '';
  };
}