{ pkgs, config, lib, ... }:

let
  phppoolName = "wallabag";
  dataDir = "/var/lib/wallabag";
  vhost = "read.mossnet.local";
in
{
  services.nginx.virtualHosts."${vhost}" = {
    forceSSL = false;
    enableACME = false;
    root = "/var/lib/wallabag/web";
    listen = [ { addr = "192.168.1.6"; port = 800; } ];

    locations."/" = {
      extraConfig = ''
        try_files $uri /app.php$is_args$args;
        '';
    };

    locations."/assets".root = "${dataDir}/web";

    locations."~ ^/app\.php(/|$)" = {
      extraConfig = ''
	include ${pkgs.nginx}/conf/fastcgi_params;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        if (!-f $document_root$fastcgi_script_name) {
        return 404;
        }

        fastcgi_pass unix:${config.services.phpfpm.pools."${phppoolName}".socket};
	fastcgi_param  SCRIPT_FILENAME  {pkgs.wallabag}/web/$fastcgi_script_name;
        fastcgi_param DOCUMENT_ROOT {pkgs.wallabag}/web;
        '';
    };

    locations."~ \.php$" = {
	extraConfig = ''
	return 404;
	'';
    };
  };
  services.postgresql = {
    enable = true;

    # Ensure the database, user, and permissions always exist
    ensureDatabases = [ "wallabag" ];
    ensureUsers = [
     { name = "wallabag";
       ensurePermissions."DATABASE wallabag" = "ALL PRIVILEGES";
     }
    ];
  };
  services.phpfpm.pools."${phppoolName}" = {
    user = "wallabag";
    group = "wallabag";
    phpEnv."WALLABAG_DATA" = "/var/lib/wallabag";
    phpEnv."PATH" = lib.makeBinPath [ pkgs.php ];
    settings = {
      "listen.owner" = "nginx";
      "listen.group" = "nginx";
      "user" = "wallabag";
      "pm" = "dynamic";
      "pm.max_children" = "75";
      "pm.min_spare_servers" = "5";
      "pm.max_spare_servers" = "20";
      "pm.max_requests" = "10";
      "catch_workers_output" = "1";
    };
  };
   
  systemd.services.wallabag-install = {
      description = "Wallabag install service";
      wantedBy = [ "multi-user.target" ];
      before = [ "phpfpm-wallabag.service" ];
      after = [ "mysql.service" "postgresql.service" ];
      path = [ pkgs.coreutils pkgs.php73 pkgs.php73Packages.composer ];

      serviceConfig = {
        User = "wallabag";
        Type = "oneshot";
        RemainAfterExit = "yes";
        PermissionsStartOnly = true;
      };

      preStart = ''
        mkdir -p "${dataDir}"
        chown wallabag:nginx "${dataDir}"
      '';

      script = ''
        echo "Setting up wallabag files in ${dataDir} ..."
        cd "${dataDir}"

        rm -rf var/cache/*
        rm -f ${dataDir}/app
	rm -f ${dataDir}/bin
        ln -sf ${pkgs.wallabag}/app app
        ln -sf ${pkgs.wallabag}/composer.{json,lock} .
	ln -sf ${pkgs.wallabag}/bin/ bin

        export WALLABAG_DATA="${dataDir}"
        if [ ! -f installed ]; then
          php /var/lib/wallabag/bin/console --env=prod doctrine:database:create --if-not-exists --no-interaction
          php /var/lib/wallabag/bin/console --env=prod doctrine:migrations:migrate --no-interaction
          # Until https://github.com/wallabag/wallabag/issues/3662 is fixed
          yes no | php /var/lib/wallabag/bin/console --env=prod wallabag:install
          touch installed
        else
          php ${pkgs.wallabag}/bin/console --env=prod doctrine:migrations:migrate --no-interaction
        fi
        php ${pkgs.wallabag}/bin/console --env=prod cache:clear
      '';
  };

  users.extraUsers.wallabag = { group = "wallabag"; };
  users.extraGroups.wallabag = { };
  
  networking.firewall.allowedTCPPorts = [ 800 ];
}