{ lib, config, pkgs, ... }:

let
  inherit (lib) getExe;

  cfg = config.snowhawk.tmux;
  macos = config.snowhawk.macos.enable;
in
{
  options.snowhawk.tmux = {
    enable = lib.mkEnableOption "tmux";
  };

  config = lib.mkIf cfg.enable {
    programs.tmux = {
      enable = true;
      shell = getExe (if macos then pkgs.zsh else pkgs.fish);
      mouse = true;
      baseIndex = 1;
      terminal = "screen-256color";
      newSession = true;
      escapeTime = 0;

      plugins = with pkgs; [
        {
          plugin = tmuxPlugins.rose-pine;
          extraConfig = ''
            set -g @rose_pine_variant 'main' # Options are 'main', 'moon' or 'dawn'
            set -g @rose_pine_host 'on'
            set -g @rose_pine_date_time '%c' # %c is a good value but 
          '';
        }
        { plugin = tmuxPlugins.vim-tmux-navigator; }
      ];

      extraConfig = ''
        set-option -g renumber-windows on
        set-option -g focus-events on
        set-option -g terminal-features 'alacritty:RGB'

        bind '"' split-window -v -c "#{pane_current_path}"
        bind % split-window -h -c "#{pane_current_path}"
      '';
    };

    programs.fish.shellAbbrs = {
      a = "tmux a";
    };
  };
}