{ pkgs, ... }:

with pkgs;
let
  # nix-channel --add https://nixos.org/channels/nixos-unstable nixos-unstable
  unstable = import <nixos-unstable> { };
  # nix-channel --add https://github.com/nix-community/NUR/archive/master.tar.gz NUR
  nur = import <NUR> { inherit pkgs; };
  myNur = nur.repos.schmittlauch;
  mybrowser = firefox;

  desktopApps = [
    mybrowser
    falkon
    thunderbird
    calibre
    dino
    zotero
    keepassxc
    ding
    aspell
    aspellDicts.de
    aspellDicts.en
    # for kate/KDE applications
    hunspellDicts.de-de
    hunspellDicts.en-us
    hunspellDicts.en-gb-ise
    seafile-client
    alacritty
    libreoffice-fresh
    backintime-common
    anki-bin
    signal-desktop
    (tor-browser-bundle-bin.override { mediaSupport = true; pulseaudioSupport = true; })
    pdfpc
    quaternion
    nheko
    gpx-viewer
    gpxsee
    cawbird
    subsurface
    yate
    # split and merge PDFs in a GUI
    pdfarranger
    transmission-qt
    #(pkgs.pidgin-with-plugins.override {
    #    plugins = [ pkgs.pidginotr ];})


    # for Hibiscus banking software
    jameica
    #ToDo: which of these drivers is actually used?
    geckodriver
    chromedriver
  ];

  graphicsApps = [
    inkscape
    darktable
    hugin
    luminanceHDR
    exiftool
    gimp
    xournal
  ]
  ++ (
    with gimpPlugins; [
      resynthesizer
      fourier
      lqrPlugin
    ]
  );

  multimediaApps = [
    mpv
    vlc
    #amarok
    clementine
    youtube-dl
    #sonic-pi
    musescore
    audacity
    avidemux
    #linphone
    soundkonverter
    gpodder
  ];

  cliApps = [
    myVim
    htop
    tmux
    httpie
    ponysay
    gti
    tree
    lsof
    mosh
    openssh
    sshfsFuse
    cryfs
    smbnetfs # for FUSE smb mounting
    sshuttle
    thefuck
    gnupg
    unar
    lzop
    p7zip
    pwgen
    pandoc
    agrep
    pdfgrep
    torsocks
    ncdu
    psmisc # for killall
    dos2unix
    reptyr # re-bind running program to other tty
    xclip
    unzip
    myNur.lolcommits # from NUR
  ];

  nixHelpers = [
    lorri
    nix-review
    nixpkgs-fmt
  ];

  kdeTools = with plasma5Packages; with kdeGear; [
    okular
    gwenview
    yakuake
    kmail
    kontact
    korganizer
    akonadi-mime #for KOrganizer
    kaddressbook
    kdeconnect
    dolphin
    spectacle
    kate
    kleopatra
    qdirstat
    ark
    kwalletmanager
    ktouch
    kcharselect
    konversation
    okteta
    krdc
    skanlite
    akonadiconsole
    plasma-browser-integration
  ]
  ++ (
    with kdeFrameworks; [
      networkmanager-qt
      kcrash
      breeze-gtk
      phonon-backend-vlc
      #(phonon-backend-vlc.override {qtbase=qt5.qtbase; qtx11extras=qt5.qtx11extras;})
    ]
  );

  devTools = [
    curl
    httpie
    gdb
    strace
    ltrace
    valgrind
    zeal
    gcc
    qtcreator
    shellcheck
    mtr
    ripgrep

    # Haskell
    ghc
    cabal2nix
  ];


  latexApps = [
    texmaker
    kile
    biber
    # customize texlive installation
    (
      texlive.combine {
        inherit (texlive)
          scheme-medium

          xetex
          luatex
          unicode-math
          fontspec
          collection-binextra
          collection-fontsrecommended
          collection-latex
          collection-latexextra
          collection-latexrecommended
          collection-langgerman
          IEEEtran
          moderncv
          acronym
          ccicons
          fontawesome
          biblatex
          logreq
          koma-script
          ;
      }
    )
  ];

  pythonApps = with python3Packages; [
    notebook
    ipython
    pip
    numpy
    matplotlib
    jedi
    flake8
    mypy
  ];


  fonts = [
    comic-neue
    source-sans-pro
    source-serif-pro
    fira-code
    ubuntu_font_family
    twemoji-color-font
    opensans-ttf
    (iosevka-bin.override {
      variant = "curly-slab";
    })
    myNur.vollkorn
    # TODO: humor-sans
  ];

  games = [
    superTuxKart
    #hedgewars
  ];

in
{

  home.packages =
    desktopApps
    ++ latexApps
    ++ pythonApps
    ++ graphicsApps
    ++ cliApps
    ++ multimediaApps
    ++ devTools
    ++ kdeTools
    ++ fonts
    ++ nixHelpers
    ++ games
  ;

  programs.home-manager.enable = true;
  programs.home-manager.path = "$HOME/.nix-defexpr/channels/home-manager";
  home.stateVersion = "18.09";

  programs.direnv =
    {
      enable = true;
      enableZshIntegration = true;
    };

  #  programs.vim =
  #    { enable = true;
  #    };

  programs.bat.enable = true;

  services.gpg-agent =
    {
      enable = true;
      enableSshSupport = true;
      pinentryFlavor = "qt";
    };

  programs.ssh =
    {
      enable = true;
      # ssh host config
      matchBlocks =
        import ./secrets/ssh_hosts.nix;
    };

  programs.tmux = {
    enable = true;
    keyMode = "vi";
    extraConfig =
      # for direnv not messing up the environment
      ''set-option -g update-environment "DIRENV_DIFF DIRENV_DIR DIRENV_WATCHES"
          set-environment -gu DIRENV_DIFF
          set-environment -gu DIRENV_DIR
          set-environment -gu DIRENV_WATCHES
          set-environment -gu DIRENV_LAYOUT
        
          bind-key -T copy-mode-vi 'v' send -X begin-selection
          bind-key -T copy-mode-vi 'y' send -X copy-selection-and-cancel'';
    terminal = "screen-256color";
  };

  systemd.user.startServices = true;

  services.lorri.enable = true;

  fonts.fontconfig.enable = true;

  programs.git =
    let contacts = import ./secrets/contacts.nix;
    in
    {
      enable = true;
      includes = [
        {
          condition = "gitdir:~/Seafile/Studium/";
          contents = {
            user.name = contacts.realName;
            user.email = contacts.uniMail;
          };
        }
        {
          condition = "gitdir:~/src/nixpkgs/";
          contents = {
            user.name = "Trolli Schmittlauch";
            user.email = contacts.nixosMail;
          };
        }
      ]
      # set default name for several other common locations
      ++ map
        (dir: {
          condition = "gitdir:${dir}";
          contents = {
            user.name = "Trolli Schmittlauch";
            user.email = contacts.mainMail;
          };
        }) [ "~/src/" "~/bin/" "~/tmp/" "~/nixconfigs/" ];
      extraConfig = {
        credential.helper = "cache";
        push.default = "simple";
        init.defaultBranch = "mainline";
        diff.tool = "vimdiff";
        merge.tool = "vimdiff";
        core.excludesfile = toString (pkgs.writeText ".gitignore_global" ''
          # Direnv stuff
          .direnv
          .envrc
          # Editor files #
          ################
          *~
          *.swp
          *.swo
        '');
      };
      lfs.enable = true;
    };
}