let
  validThemes = [ "bat" "bottom" "btop" "grub" "hyprland" "k9s" "kvantum" "lazygit" "plymouth" "qt5ct" "refind" "rofi" "starship" "waybar" ];
in
{ fetchFromGitHub
, lib
, stdenvNoCC
, accent ? "blue"
, variant ? "macchiato"
, themeList ? validThemes
}:
let
  pname = "catppuccin";

  validAccents = [ "rosewater" "flamingo" "pink" "mauve" "red" "maroon" "peach" "yellow" "green" "teal" "sky" "sapphire" "blue" "lavender" ];
  validVariants = [ "latte" "frappe" "macchiato" "mocha" ];

  selectedSources = map (themeName: builtins.getAttr themeName sources) themeList;
  sources = {
    bat = fetchFromGitHub {
      name = "bat";
      owner = "catppuccin";
      repo = "bat";
      rev = "ba4d16880d63e656acced2b7d4e034e4a93f74b1";
      hash = "sha256-6WVKQErGdaqb++oaXnY3i6/GuH2FhTgK0v4TN4Y0Wbw=";
    };

    bottom = fetchFromGitHub {
      name = "bottom";
      owner = "catppuccin";
      repo = "bottom";
      rev = "c0efe9025f62f618a407999d89b04a231ba99c92";
      hash = "sha256-VaHX2I/Gn82wJWzybpWNqU3dPi3206xItOlt0iF6VVQ=";
    };

    btop = fetchFromGitHub {
      name = "btop";
      owner = "catppuccin";
      repo = "btop";
      rev = "1.0.0";
      hash = "sha256-J3UezOQMDdxpflGax0rGBF/XMiKqdqZXuX4KMVGTxFk=";
    };

    grub = fetchFromGitHub {
      name = "grub";
      owner = "catppuccin";
      repo = "grub";
      rev = "v1.0.0";
      hash = "sha256-/bSolCta8GCZ4lP0u5NVqYQ9Y3ZooYCNdTwORNvR7M0=";
    };

    hyprland = fetchFromGitHub {
      name = "hyprland";
      owner = "catppuccin";
      repo = "hyprland";
      rev = "v1.2";
      hash = "sha256-07B5QmQmsUKYf38oWU3+2C6KO4JvinuTwmW1Pfk8CT8=";
    };

    k9s = fetchFromGitHub {
      name = "k9s";
      owner = "catppuccin";
      repo = "k9s";
      rev = "516f44dd1a6680357cb30d96f7e656b653aa5059";
      hash = "sha256-PtBJRBNbLkj7D2ko7ebpEjbfK9Ywjs7zbE+Y8FQVEfA=";
    };

    kvantum = fetchFromGitHub {
      name = "kvantum";
      owner = "catppuccin";
      repo = "Kvantum";
      rev = "d1e174c85311de9715aefc1eba4b8efd6b2730fc";
      sha256 = "sha256-IrHo8pnR3u90bq12m7FEXucUF79+iub3I9vgH5h86Lk=";
    };

    lazygit = fetchFromGitHub {
      name = "lazygit";
      owner = "catppuccin";
      repo = "lazygit";
      rev = "0543c28e8af1a935f8c512ad9451facbcc17d8a8";
      hash = "sha256-OVihY5E+elPKag2H4RyWiSv+MdIqHtfGNM3/1u2ik6U=";
    };

    plymouth = fetchFromGitHub {
      name = "plymouth";
      owner = "catppuccin";
      repo = "plymouth";
      rev = "d4105cf336599653783c34c4a2d6ca8c93f9281c";
      hash = "sha256-quBSH8hx3gD7y1JNWAKQdTk3CmO4t1kVo4cOGbeWlNE=";
    };

    qt5ct = fetchFromGitHub {
      name = "qt5ct";
      owner = "catppuccin";
      repo = "qt5ct";
      rev = "89ee948e72386b816c7dad72099855fb0d46d41e";
      hash = "sha256-t/uyK0X7qt6qxrScmkTU2TvcVJH97hSQuF0yyvSO/qQ=";
    };

    refind = fetchFromGitHub {
      name = "refind";
      owner = "catppuccin";
      repo = "refind";
      rev = "ff0b593c19bb9b469ee0ee36068b8d373f0fadc5";
      hash = "sha256-itUMo0lA23bJzH0Ndq7L2IaEYoVdNPYxbB/VWkRfRso=";
    };

    rofi = fetchFromGitHub {
      name = "rofi";
      owner = "catppuccin";
      repo = "rofi";
      rev = "5350da41a11814f950c3354f090b90d4674a95ce";
      hash = "sha256-DNorfyl3C4RBclF2KDgwvQQwixpTwSRu7fIvihPN8JY=";
    };

    starship = fetchFromGitHub {
      name = "starship";
      owner = "catppuccin";
      repo = "starship";
      rev = "5629d2356f62a9f2f8efad3ff37476c19969bd4f";
      hash = "sha256-nsRuxQFKbQkyEI4TXgvAjcroVdG+heKX5Pauq/4Ota0=";
    };

    waybar = fetchFromGitHub {
      name = "waybar";
      owner = "catppuccin";
      repo = "waybar";
      rev = "v1.0";
      hash = "sha256-vfwfBE3iqIN1cGoItSssR7h0z6tuJAhNarkziGFlNBw=";
    };
  };
in
lib.checkListOfEnum "${pname}: variant" validVariants [ variant ]
lib.checkListOfEnum "${pname}: accent" validAccents [ accent ]
lib.checkListOfEnum "${pname}: themes" validThemes themeList

stdenvNoCC.mkDerivation {
  inherit pname;
  version = "unstable-2023-10-09";

  srcs = selectedSources;

  unpackPhase = ''
    for s in $selectedSources; do
      b=$(basename $s)
      cp $s ''${b#*-}
    done
  '';

  installPhase = ''
    runHook preInstall

    local capitalizedVariant=$(sed 's/^\(.\)/\U\1/' <<< "${variant}")
    local capitalizedAccent=$(sed 's/^\(.\)/\U\1/' <<< "${accent}")

  '' + lib.optionalString (lib.elem "bat" themeList) ''
    mkdir -p $out/bat
    cp "${sources.bat}/Catppuccin-${variant}.tmTheme" "$out/bat/"

  '' + lib.optionalString (lib.elem "btop" themeList) ''
    mkdir -p $out/btop
    cp "${sources.btop}/themes/catppuccin_${variant}.theme" "$out/btop/"

  '' + lib.optionalString (lib.elem "bottom" themeList) ''
    mkdir -p $out/bottom
    cp "${sources.bottom}/themes/${variant}.toml" "$out/bottom/"

  '' + lib.optionalString (lib.elem "grub" themeList) ''
    mkdir -p $out/grub
    cp -r ${sources.grub}/src/catppuccin-${variant}-grub-theme/* "$out/grub/"

  '' + lib.optionalString (lib.elem "hyprland" themeList) ''
    mkdir -p $out/hyprland
    cp "${sources.hyprland}/themes/${variant}.conf" "$out/hyprland/"

  '' + lib.optionalString (lib.elem "k9s" themeList) ''
    mkdir -p $out/k9s
    cp "${sources.k9s}/dist/${variant}.yml" "$out/k9s/"

  '' + lib.optionalString (lib.elem "kvantum" themeList) ''
    mkdir -p $out/share/Kvantum
    cp -r ${sources.kvantum}/src/Catppuccin-"$capitalizedVariant"-"$capitalizedAccent" $out/share/Kvantum

  '' + lib.optionalString (lib.elem "lazygit" themeList) ''
    mkdir -p $out/lazygit/{themes,themes-mergable}
    cp "${sources.lazygit}/themes/${variant}/${variant}-${accent}.yml" "$out/lazygit/themes/"
    cp "${sources.lazygit}/themes-mergable/${variant}/${variant}-${accent}.yml" "$out/lazygit/themes-mergable/"

  '' + lib.optionalString (lib.elem "plymouth" themeList) ''
    mkdir -p $out/share/plymouth/themes/catppuccin-${variant}
    cp ${sources.plymouth}/themes/catppuccin-${variant}/* $out/share/plymouth/themes/catppuccin-${variant}
    sed -i 's:\(^ImageDir=\)/usr:\1'"$out"':' $out/share/plymouth/themes/catppuccin-${variant}/catppuccin-${variant}.plymouth

  '' + lib.optionalString (lib.elem "qt5ct" themeList) ''
    mkdir -p $out/qt5ct
    cp ${sources.qt5ct}/themes/Catppuccin-"$capitalizedVariant".conf $out/qt5ct/

  '' + lib.optionalString (lib.elem "rofi" themeList) ''
    mkdir -p $out/rofi
    cp ${sources.rofi}/basic/.local/share/rofi/themes/catppuccin-${variant}.rasi $out/rofi/

  '' + lib.optionalString (lib.elem "refind" themeList) ''
    mkdir -p $out/refind/assets
    cp ${sources.refind}/${variant}.conf $out/refind/
    cp -r ${sources.refind}/assets/${variant} $out/refind/assets/

  '' + lib.optionalString (lib.elem "starship" themeList) ''
    mkdir -p $out/starship
    cp ${sources.starship}/palettes/${variant}.toml $out/starship/

  '' + lib.optionalString (lib.elem "waybar" themeList) ''
    mkdir -p $out/waybar
    cp ${sources.waybar}/${variant}.css $out/waybar/

  '' + ''
    runHook postInstall
  '';

  meta = {
    description = "Soothing pastel themes";
    homepage = "https://github.com/catppuccin/catppuccin";
    license = lib.licenses.mit;
    platforms = lib.platforms.all;
    maintainers = [ lib.maintainers.khaneliman ];
  };
}