{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.05";

  outputs = { self, nixpkgs }: {

    devShell.x86_64-linux = import ./shell.nix {
      pkgs = import nixpkgs { system =  "x86_64-linux"; };
    };

    defaultPackage.x86_64-linux =
      let 
        pkgs = import nixpkgs { system = "x86_64-linux"; };
        lib = pkgs.lib;
      in
        pkgs.mediawiki.overrideAttrs ({ pname, ... }: rec {
          version = "1.27.0";
          src = with lib; pkgs.fetchurl {
          url = "https://releases.wikimedia.org/mediawiki/${versions.majorMinor version}/${pname}-${version}.tar.gz";
          sha256 = "sha256-x50AMSpLdJkn5PP5YAs7z5/pFKiYt/5PhRjp9Zro0Sg=";
  };

        });
      

    nixosConfigurations.container =  nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      modules =
        [ ({ config, pkgs, lib, ... }:
        let
          mediaWikiOld = pkgs.mediawiki.overrideAttrs ({pname, ...}: rec {
            version = "1.35.6";
            src = with lib; pkgs.fetchurl {
            url = "https://releases.wikimedia.org/mediawiki/${versions.majorMinor version}/${pname}-${version}.tar.gz";
            sha256 = "sha256-XIRIclmP7PvXd7C+asN/W4gCeJqQ5Q6UBzp2xtxhkcQ=";
          };
          });
        in
        {
            imports = [ ./module/mediawiki.nix ];
            boot.isContainer = true;

            # Let 'nixos-version --json' know about the Git revision
            # of this flake.
            system.configurationRevision = nixpkgs.lib.mkIf (self ? rev) self.rev;

            # Network configuration.
            networking.useDHCP = false;
            networking.firewall.allowedTCPPorts = [ 80 5432 ];


            services.mysql = {
              enable = false;
            };

            services.postgresql =
             let
                 cfg = config.services.mediawiki;
              in {
                enable = true;
                enableTCPIP = true;
                package = pkgs.postgresql_11;
                ensureDatabases = [ cfg.database.name ];

                ensureUsers = [{ 
                  name = cfg.database.user;
                  ensurePermissions = { "DATABASE ${cfg.database.name}" = "ALL PRIVILEGES"; };
                }              
              ];
              authentication = lib.mkForce ''
    # Generated file; do not edit!
    # TYPE  DATABASE        USER            ADDRESS                 METHOD
      local   all             all                                     trust
      host    all             all             127.0.0.1/32            trust
      host    all             all             10.233.2.1/32            trust
      host    all             all             169.254.155.231/32      trust
      host    all             all             ::1/128                 trust 
      '';};

      system.stateVersion = "22.05";


      systemd.services.mediawiki-pg-init =  let
                 cfg = config.services.mymediawiki;
                 stateDir = "/var/lib/mediawiki";
                 pkg = mediaWikiOld;
                 inherit (lib) concatStringsSep literalExample mapAttrsToList optional optionals optionalString types;
                 mediawikiConfig = config.services.phpfpm.pools.mediawiki.phpEnv.MEDIAWIKI_CONFIG;
      in {
                enable = true;
                wantedBy = [ "multi-user.target" ];
                before = [ "phpfpm-mediawiki.service" ];
                after = [ "postgresql.service" ];
                script = ''
                  if ! test -e "${stateDir}/secret.key"; then
                    tr -dc A-Za-z0-9 </dev/urandom 2>/dev/null | head -c 64 > ${stateDir}/secret.key
                  fi
                  ${pkgs.php}/bin/php ${pkg}/share/mediawiki/maintenance/update.php --conf ${mediawikiConfig} --quick
                '';

                serviceConfig = {
                  Type = "oneshot";
                  User = "mediawiki";
                  Group = config.services.httpd.group;
                  PrivateTmp = true;
                };
        };

      services.mymediawiki = {
              enable = true;
              package = mediaWikiOld;
              virtualHost = {
                hostName = "mediawiki";
                adminAddr = "root@example.com";
              };
              #skins = {
              #      Vector = "${mediaWikiOld}/share/mediawiki/skins/Vector";
              #      Hector = "${mediaWikiOld}/share/mediawiki/skins/Hector";
              #};
              extraConfig = ''

                $wgShowExceptionDetails = true;
                $wgDBserver = "/run/postgresql";
                $wgDBport = "5432";
                # $wgDBuser = "mediawiki";
                # $wgDBname = "mediawiki";
                $wgDBmwschema       = "mediawiki";
              '';
              extensions = {
#                Interwiki = pkgs.fetchzip {
#                  url = "https://extdist.wmflabs.org/dist/extensions/Interwiki-REL1_36-08fe37f.tar.gz";
#                  sha256 = "sha256-77uvw/ETPeRNYRcIl2KqowmJ9D9R9wyyltpy5Cu11L4=";
#                };
#                Cite = pkgs.fetchzip {
#                  url = "https://extdist.wmflabs.org/dist/extensions/Cite-REL1_36-77e6710.tar.gz";
#                  sha256 = "sha256-un6AjbqHre00a2IaEaUZnPPk+gMoet9pc+6mRLfh3I0=";
#                };
                #DynamicPageList = pkgs.fetchzip {
                #  url = "https://extdist.wmflabs.org/dist/extensions/DynamicPageList-REL1_36-6a4424f.tar.gz";
                #  sha256 = "sha256-HIl4EnUgiZQzUvWFF9e7enyAYWM4e16oRSYXMdtblic=";
                #};
                #Scribunto = pkgs.fetchzip {
                #  url = "https://extdist.wmflabs.org/dist/extensions/Scribunto-REL1_36-cc217d4.tar.gz";
                #  sha256 = "sha256-chFveLW4GdRmJbUE4Q2e2aEJ52zejpqF5B/YiZZ7L1k=";
                #};
                #Lockdown = pkgs.fetchzip {
                #  url = "https://extdist.wmflabs.org/dist/extensions/Lockdown-REL1_36-1a3d68d.tar.gz";
                #  sha256 = "sha256-AlJbXsqJfXqj0bU16fwxFSu0lfR+WzJxJiJSKp1keXk=";
                #};
              };
              passwordFile = pkgs.writeText "password" "topSecretF0rAll!!!!";
              #database = {
              #  type = "mysql";
              #  createLocally = true;
              #};
              database = {
                type = "postgres";
              #  socket = "/run/postgresql";
              #  host = "localhost";
              #  port = 5432;
                user = "mediawiki";
                name = "mediawiki";
                passwordFile = pkgs.writeText "password" "";

              };
            };

          })
        ];
    };

  };
}