# Edit this configuration file to declare what will be installed on your system.
# Help is in configuration.nix(5) man page and NixOS manual (run ‘nixos-help’).
{ config, lib, pkgs, ... }:
{
  system.stateVersion = "18.03"; # change this only if NixOS release notes say to
  imports = [ ./hardware-configuration.nix ];
  #nixpkgs = { overlays = [ (import ./overlays/overlay-1) ]; };
  nixpkgs.config.allowUnfree = true;
  time.timeZone     = "America/Puerto_Rico";
  nix.nixPath       = [ "/nix/var/nix/profiles/per-user/root/channels/nixos"
                        "nixpkgs=/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs"
                        "nixos-config=/etc/nixos/configuration.nix"
                        "nixpkgs-overlays=/etc/nixos/overlays/" ];
  boot.loader.grub  = { enable = true; version = 2; device = "/dev/sda"; };
  boot.initrd       = { checkJournalingFS = false;
    kernelModules = [ "hv_vmbus" "hv_netvsc" "hv_utils" "hv_storsvc" ]; };
  boot.kernelParams = ["nomodeset" ];
  networking       = { # Example from https://nixos.org/nix-dev/2012-August/009680.html
    hostName       = "nixos"; # enableIPv6 = true;
    useDHCP        = false;
    defaultGateway = "192.168.0.1";
    nameservers    = [ "192.168.0.1"  ];
    interfaces     = [ { name = "eth0"; ipv4.addresses = [ { address = "192.168.0.2"; prefixLength = 24; } ]; } ];
    }; #localCommand = "ip route add default via 2a03:2900:2:1::1";
  i18n = { consoleFont = "Lat2-Terminus16"; consoleKeyMap = "us"; defaultLocale = "en_US.UTF-8"; };
  #nixpkgs.config.packageOverrides = with pkgs; {
  #  timescaledb = callPackage <nixpkgs/timescaledb.nix { postgresql = pkgs.postgresql100; }; };
  environment.systemPackages = with pkgs; [
    ######### From 18.03
    vscode chromium firefox findutils mono58 telnet unrar unzip wine zip libreoffice
    nix-repl python27Packages.psycopg2 python36Packages.psycopg2
    clickhouse grafana fsharp41 azure-vhd-utils
    psqlodbc pgadmin pgcli pgmanage postgis pg_repack # postgres packages
    postgresql #timescaledb
    ######### /From 18.03
    #$$$$$$$$ From master-pinned-2018-05-16 to pick up newer packages
    #overlay1.postgresql overlay1.timescaledb
    #overlay1.pg_topn overlay1.pg_cron overlay1.cstore_fdw
    #$$$$$$$$ /From master-pinned-2018-05-16
    wget vim curl screen git python python36 gnumake
    ];
  # Some programs need SUID wrappers - configured further - or are started in user sessions.
  programs.bash.enableCompletion = true;
  programs.mtr.enable = true;
  # programs.gnupg.agent = { enable = true; enableSSHSupport = true; };
  networking.firewall.enable = false;
  services.openssh.enable = true;
  services.openssh.extraConfig = ''
    ClientAliveInterval 180
  '';
  services.xserver = { enable = true; layout = "us"; xkbOptions = "eurosign:e";
    displayManager.sddm.enable = true; # KDE
    desktopManager.plasma5.enable = true; # KDE = plasma5
    };
  # postgresql service; see nixos evolution of these options here:
  #                     https://github.com/NixOS/nixpkgs/pull/38698
  # For override syntax, see # https://github.com/NixOS/nixpkgs/issues/21042
  #                          # https://github.com/NixOS/nixpkgs/issues/38616
  services.postgresql = {
      enable = true; enableTCPIP = true;
      #package = pkgs.overlay1.postgresql100;
      package = pkgs.postgresql100;
      dataDir = "/data/pgdb";
      authentication = pkgs.lib.mkOverride 10 ''
        local all all trust
        host all all 192.168.0.0/24 trust
      '';
      #extraPlugins = [ (pkgs.timescaledb.override { postgresql = pkgs.postgresql100; }) ];
      #extraPlugins = [
      #    (pkgs.postage.override          { postgresql = pkgs.overlay1.postgresql100; })
      #    (pkgs.pg_repack.override        { postgresql = pkgs.overlay1.postgresql100; })
      #    (pkgs.postgis.override          { postgresql = pkgs.overlay1.postgresql100; })

      #    (pkgs.overlay1.pg_cron.override     { postgresql = pkgs.overlay1.postgresql100; })
      #    (pkgs.overlay1.pg_topn.override     { postgresql = pkgs.overlay1.postgresql100; })
      #    (pkgs.overlay1.timescaledb.override { postgresql = pkgs.overlay1.postgresql100; })
      #    (pkgs.overlay1.cstore_fdw.override  { postgresql = pkgs.overlay1.postgresql100; })
      # ];
      #extraConfig = "shared_preload_libraries = 'timescaledb'";
      };
  #services.pgmanage.enable = true;
  #services.pgmanage.connections = { myserver = "host=localhost port=5432 dbname=postgres"; };
  #services.xserver.displayManager.sddm.enable = true; # Enable the KDE Desktop Environment.
  #services.xserver.desktopManager.plasma5.enable = true; # KDE = plasma5
  users.extraUsers.u = { # Define a user account. Don't forget to set a password with 'passwd'.
    isNormalUser = true; home = "/home/u"; description = "u";
    extraGroups = [ "wheel" "networkmanager" ]; uid = 1000; };