rose-pine-nix/modules/home-manager/tmux.nix

{
  config,
  lib,
  pkgs,
  ...
}:
let
  inherit (lib)
    ctp
    mkOption
    types
    concatStrings
    ;
  inherit (config.catppuccin) sources;
  cfg = config.programs.tmux.catppuccin;
  enable = cfg.enable && config.programs.tmux.enable;

  plugin =
    # TODO @getchoo: upstream this in nixpkgs
    pkgs.tmuxPlugins.mkTmuxPlugin {
      pluginName = "catppuccin";
      version = builtins.substring 0 7 sources.tmux.revision;
      src = sources.tmux;
    };
in
{
  options.programs.tmux.catppuccin = ctp.mkCatppuccinOpt { name = "tmux"; } // {
    extraConfig = mkOption {
      type = types.lines;
      description = "Additional configuration for the catppuccin plugin.";
      default = "";
      example = ''
        set -g @catppuccin_status_modules_right "application session user host date_time"
      '';
    };
  };

  config.programs.tmux.plugins = lib.mkIf enable [
    {
      inherit plugin;
      extraConfig = concatStrings [
        ''
          set -g @catppuccin_flavor '${cfg.flavor}'
        ''
        cfg.extraConfig
      ];
    }
  ];
}