niksos/modules/gui/qt.nix

{
    config,
    lib,
    pkgs,
    ...
}: let
    cfg = config.poz.themes.qt;
    inherit (config.poz.other.system) username;

    inherit (lib.attrsets) attrValues;
    inherit (lib.modules) mkIf;
    inherit (lib.options) mkEnableOption mkOption;
    inherit (lib.types) package str;
in {
    options.poz.themes.qt = {
        enable = mkEnableOption "qt theming";
        name = mkOption {
            description = "qt theme name";
            type = str;
        };
        variant = mkOption {
            description = "qt theme variant";
            type = str;
        };
        accentColour = mkOption {
            description = "accent colour for qt theme";
            type = str;
        };
        package = mkOption {
            description = "qt theme package";
            type = package;
        };
    };

    config = mkIf cfg.enable {
        environment.sessionVariables = {
            QT_QPA_PLATFORMTHEME = "qt5ct";
        };

        home-manager.users.${username} = {
            # thanks raf :3 https://github.com/NotAShelf/nyx/blob/main/homes/notashelf/themes/qt.nix
            qt = {
                enable = true;
                platformTheme.name = "qtct";
                style = {
                    inherit (cfg) name;
                    package = cfg.package.override {
                        flavour = [ cfg.variant ];
                        accents = [ cfg.accentColour ];
                    };
                };
            };

            home = {
                packages = attrValues {
                    inherit (pkgs.qt5) qttools;
                    inherit (pkgs.libsForQt5)
                        qtstyleplugin-kvantum
                        qt5ct
                        breeze-icons
                    ;
                } ++ [
                    pkgs.qt6Packages.qtstyleplugin-kvantum
                ];

                sessionVariables = {
                    #QT_STYLE_OVERRIDE = "kvantum";
                    QT_AUTO_SCREEN_SCALE_FACTOR = "1";
                    QT_QPA_PLATFORM = "wayland;xcb";
                    QT_WAYLAND_DISABLE_WINDOWDECORATION = "1";
                    DISABLE_QT_COMPAT = "0";
                };
            };

            # TODO somehow make this configurable IDK
            xdg.configFile = {
                "Kvantum/catppuccin/catppuccin.kvconfig".source = pkgs.fetchurl {
                    url = "https://raw.githubusercontent.com/catppuccin/Kvantum/main/themes/catppuccin-mocha-green/catppuccin-mocha-green.kvconfig";
                    hash = "sha256-IxHmEWYA4Gihxo0ZeKFwbbrdDhKkH412BDFRuj+gwQ0=";
                };
                "Kvantum/catppuccin/catppuccin.svg".source = pkgs.fetchurl {
                    url = "https://raw.githubusercontent.com/catppuccin/Kvantum/main/themes/catppuccin-mocha-green/catppuccin-mocha-green.svg";
                    hash = "sha256-wU3lvBu2GKh/dM0Pgx+PddkU17fH+HO1zGQ8hYswULY=";
                };
                "Kvantum/kvantum.kvconfig".text = ''
                    [General]
                    theme=catppuccin

                    [Applications]
                    catppuccin=qt5ct, org.qbittorrent.qBittorrent, hyprland-share-picker
                '';
            };
        };
    };
}